E-commerce Starter - Free HTML/CSS UI Kit

Conversion-focused storefront components including product cards with sale badges, star ratings, cart navigation, checkout forms, order tables, and trust signal elements.

Download Full Kit (.zip)

Complete kit with all components & styles

Just need one component?

Download base.css and add the following line to your HTML:

Then grab a component below and add it to your HTML.

Color Palette

Electric Violet #7C3AED
Hot Orange #F97316
Deep Ink #0F172A
Cool Surface #F8FAFC
Slate Muted #64748B

Typography


Navbars

Store Top Navigation

HTML
<header class="ec-topnav">
    <!-- Top strip: free shipping notice -->
    <div class="ec-topstrip">
        <span>🎁 Free shipping on orders over $75 — Use code <strong>FREESHIP</strong></span>
    </div>

    <!-- Main nav row -->
    <div class="ec-nav-main">
        <a href="#" class="ec-logo">
            <div class="ec-logo-icon">🛍️</div>
            Shopvault
        </a>

        <nav class="ec-nav-links">
            <a href="#" class="ec-nav-link active">New In</a>
            <a href="#" class="ec-nav-link">Women</a>
            <a href="#" class="ec-nav-link">Men</a>
            <a href="#" class="ec-nav-link">Sale <span class="ec-badge ec-badge-sale">−30%</span></a>
        </nav>

        <div class="ec-nav-actions">
            <div class="ec-search-bar">
                <svg class="ec-search-ico" viewBox="0 0 24 24" width="15" height="15" stroke="currentColor" stroke-width="2" fill="none" stroke-linecap="round" stroke-linejoin="round"><circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>
                <input type="text" class="ec-search-input" placeholder="Search products…">
            </div>
            <button class="ec-btn ec-btn-ghost ec-btn-icon" aria-label="Wishlist">
                <svg viewBox="0 0 24 24" width="18" height="18" stroke="currentColor" stroke-width="2" fill="none" stroke-linecap="round" stroke-linejoin="round"><path d="M20.84 4.61a5.5 5.5 0 0 0-7.78 0L12 5.67l-1.06-1.06a5.5 5.5 0 0 0-7.78 7.78l1.06 1.06L12 21.23l7.78-7.78 1.06-1.06a5.5 5.5 0 0 0 0-7.78z"/></svg>
            </button>
            <button class="ec-btn ec-btn-ghost ec-btn-icon" aria-label="Account">
                <svg viewBox="0 0 24 24" width="18" height="18" stroke="currentColor" stroke-width="2" fill="none" stroke-linecap="round" stroke-linejoin="round"><path d="M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2"/><circle cx="12" cy="7" r="4"/></svg>
            </button>
            <button class="ec-btn ec-btn-primary ec-cart-btn" aria-label="Cart">
                <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none" stroke-linecap="round" stroke-linejoin="round"><path d="M6 2L3 6v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2V6l-3-4z"/><line x1="3" y1="6" x2="21" y2="6"/><path d="M16 10a4 4 0 0 1-8 0"/></svg>
                Cart
                <span class="ec-cart-count">3</span>
            </button>
        </div>
    </div>
</header>
CSS (Component Only)
/* Component: Store Top Navigation */
/* NOTE: This component requires base.css to be included in your page. */

.ec-topnav {
    background-color: var(--ec-surface);
    border-bottom: 1px solid var(--ec-border);
    display: flex;
    flex-direction: column;
}

.ec-topstrip {
    background-color: var(--ec-surface-dark);
    color: #fff;
    text-align: center;
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.ec-nav-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    gap: 2rem;
}

.ec-nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.ec-nav-link {
    font-family: var(--ec-font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--ec-text-muted);
    text-decoration: none;
    transition: var(--ec-transition);
    position: relative;
    padding: 0.25rem 0;
}

.ec-nav-link:hover, .ec-nav-link.active {
    color: var(--ec-primary);
}

.ec-nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--ec-primary);
    border-radius: 2px;
}

.ec-nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ec-search-bar {
    position: relative;
    display: flex;
    align-items: center;
}

.ec-search-ico {
    position: absolute;
    left: 0.85rem;
    color: var(--ec-text-light);
    pointer-events: none;
}

.ec-search-input {
    padding: 0.5rem 1rem 0.5rem 2.25rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-body);
    font-size: 0.85rem;
    font-weight: 600;
    outline: none;
    transition: var(--ec-transition);
    width: 200px;
}

.ec-search-input:focus {
    border-color: var(--ec-primary);
    width: 260px;
}

.ec-cart-btn {
    border-radius: var(--ec-radius-pill);
    padding: 0.5rem 1.25rem;
    position: relative;
}

.ec-cart-count {
    background-color: var(--ec-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 800;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--ec-primary);
    margin-left: 0.25rem;
}

@media (max-width: 992px) {
    .ec-nav-links { display: none; }
    .ec-search-bar { display: none; }
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-topnav {
    background-color: var(--ec-surface);
    border-bottom: 1px solid var(--ec-border);
    display: flex;
    flex-direction: column;
}

.ec-topstrip {
    background-color: var(--ec-surface-dark);
    color: #fff;
    text-align: center;
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.ec-nav-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    gap: 2rem;
}

.ec-nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.ec-nav-link {
    font-family: var(--ec-font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--ec-text-muted);
    text-decoration: none;
    transition: var(--ec-transition);
    position: relative;
    padding: 0.25rem 0;
}

.ec-nav-link:hover, .ec-nav-link.active {
    color: var(--ec-primary);
}

.ec-nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--ec-primary);
    border-radius: 2px;
}

.ec-nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ec-search-bar {
    position: relative;
    display: flex;
    align-items: center;
}

.ec-search-ico {
    position: absolute;
    left: 0.85rem;
    color: var(--ec-text-light);
    pointer-events: none;
}

.ec-search-input {
    padding: 0.5rem 1rem 0.5rem 2.25rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-body);
    font-size: 0.85rem;
    font-weight: 600;
    outline: none;
    transition: var(--ec-transition);
    width: 200px;
}

.ec-search-input:focus {
    border-color: var(--ec-primary);
    width: 260px;
}

.ec-cart-btn {
    border-radius: var(--ec-radius-pill);
    padding: 0.5rem 1.25rem;
    position: relative;
}

.ec-cart-count {
    background-color: var(--ec-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 800;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--ec-primary);
    margin-left: 0.25rem;
}

@media (max-width: 992px) {
    .ec-nav-links { display: none; }
    .ec-search-bar { display: none; }
}

Filter Sidebar

HTML
<aside class="ec-filter-sidebar ec-card">
    <div class="ec-sidebar-head">
        <h3>Filters</h3>
        <button class="ec-btn ec-btn-ghost ec-btn-sm">Clear all</button>
    </div>

    <!-- Category -->
    <div class="ec-filter-group">
        <h4 class="ec-filter-title">Category</h4>
        <div class="ec-filter-list">
            <label class="ec-filter-check active">
                <input type="checkbox" checked>
                <span>All Products</span>
                <span class="ec-filter-count">248</span>
            </label>
            <label class="ec-filter-check">
                <input type="checkbox">
                <span>Tops &amp; T-Shirts</span>
                <span class="ec-filter-count">84</span>
            </label>
            <label class="ec-filter-check">
                <input type="checkbox">
                <span>Dresses</span>
                <span class="ec-filter-count">52</span>
            </label>
            <label class="ec-filter-check">
                <input type="checkbox">
                <span>Outerwear</span>
                <span class="ec-filter-count">36</span>
            </label>
            <label class="ec-filter-check">
                <input type="checkbox">
                <span>Accessories</span>
                <span class="ec-filter-count">76</span>
            </label>
        </div>
    </div>

    <hr class="ec-divider">

    <!-- Price Range -->
    <div class="ec-filter-group">
        <h4 class="ec-filter-title">Price Range</h4>
        <div class="ec-price-range">
            <div class="ec-range-inputs">
                <input type="number" class="ec-input ec-input-sm" placeholder="$0" value="0">
                <span class="ec-range-sep">—</span>
                <input type="number" class="ec-input ec-input-sm" placeholder="$500" value="250">
            </div>
        </div>
    </div>

    <hr class="ec-divider">

    <!-- Size -->
    <div class="ec-filter-group">
        <h4 class="ec-filter-title">Size</h4>
        <div class="ec-size-grid">
            <button class="ec-size-btn active">XS</button>
            <button class="ec-size-btn">S</button>
            <button class="ec-size-btn active">M</button>
            <button class="ec-size-btn">L</button>
            <button class="ec-size-btn">XL</button>
            <button class="ec-size-btn">XXL</button>
        </div>
    </div>

    <hr class="ec-divider">

    <!-- Color -->
    <div class="ec-filter-group">
        <h4 class="ec-filter-title">Color</h4>
        <div class="ec-color-swatches">
            <button class="ec-swatch ec-swatch-active" style="background:#0F172A;" title="Black"></button>
            <button class="ec-swatch" style="background:#FFFFFF; border: 2px solid #CBD5E1;" title="White"></button>
            <button class="ec-swatch" style="background:#7C3AED;" title="Purple"></button>
            <button class="ec-swatch" style="background:#DC2626;" title="Red"></button>
            <button class="ec-swatch" style="background:#0284C7;" title="Blue"></button>
            <button class="ec-swatch" style="background:#16A34A;" title="Green"></button>
            <button class="ec-swatch" style="background:#D97706;" title="Amber"></button>
        </div>
    </div>

    <button class="ec-btn ec-btn-primary ec-btn-block" style="margin-top:0.5rem;">Apply Filters</button>
</aside>
CSS (Component Only)
/* Component: Filter Sidebar */
/* NOTE: This component requires base.css to be included in your page. */

.ec-filter-sidebar {
    width: 280px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 1.5rem !important;
}

.ec-sidebar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ec-sidebar-head h3 {
    font-size: 1.15rem;
    font-weight: 700;
}

.ec-filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.ec-filter-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ec-text);
}

.ec-filter-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.ec-filter-check {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    cursor: pointer;
    user-select: none;
    transition: var(--ec-transition);
}

.ec-filter-check:hover {
    color: var(--ec-primary);
}

.ec-filter-check input {
    width: 16px;
    height: 16px;
    accent-color: var(--ec-primary);
    cursor: pointer;
}

.ec-filter-count {
    margin-left: auto;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--ec-text-light);
    background-color: var(--ec-surface-2);
    padding: 0.1rem 0.45rem;
    border-radius: var(--ec-radius-sm);
}

/* Price Range */
.ec-price-range {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.ec-range-inputs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ec-input-sm {
    padding: 0.45rem 0.75rem;
    font-size: 0.85rem;
}

.ec-range-sep {
    color: var(--ec-text-light);
    font-weight: 700;
}

/* Size Grid */
.ec-size-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.ec-size-btn {
    background-color: var(--ec-surface);
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    color: var(--ec-text);
    padding: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-size-btn:hover {
    border-color: var(--ec-border-strong);
}

.ec-size-btn.active {
    border-color: var(--ec-primary);
    color: var(--ec-primary);
    background-color: var(--ec-primary-muted);
}

/* Colors */
.ec-color-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.ec-swatch {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--ec-transition);
    position: relative;
}

.ec-swatch-active {
    border-color: var(--ec-primary) !important;
    transform: scale(1.1);
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-filter-sidebar {
    width: 280px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 1.5rem !important;
}

.ec-sidebar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ec-sidebar-head h3 {
    font-size: 1.15rem;
    font-weight: 700;
}

.ec-filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.ec-filter-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ec-text);
}

.ec-filter-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.ec-filter-check {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    cursor: pointer;
    user-select: none;
    transition: var(--ec-transition);
}

.ec-filter-check:hover {
    color: var(--ec-primary);
}

.ec-filter-check input {
    width: 16px;
    height: 16px;
    accent-color: var(--ec-primary);
    cursor: pointer;
}

.ec-filter-count {
    margin-left: auto;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--ec-text-light);
    background-color: var(--ec-surface-2);
    padding: 0.1rem 0.45rem;
    border-radius: var(--ec-radius-sm);
}

/* Price Range */
.ec-price-range {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.ec-range-inputs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ec-input-sm {
    padding: 0.45rem 0.75rem;
    font-size: 0.85rem;
}

.ec-range-sep {
    color: var(--ec-text-light);
    font-weight: 700;
}

/* Size Grid */
.ec-size-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.ec-size-btn {
    background-color: var(--ec-surface);
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    color: var(--ec-text);
    padding: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-size-btn:hover {
    border-color: var(--ec-border-strong);
}

.ec-size-btn.active {
    border-color: var(--ec-primary);
    color: var(--ec-primary);
    background-color: var(--ec-primary-muted);
}

/* Colors */
.ec-color-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.ec-swatch {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--ec-transition);
    position: relative;
}

.ec-swatch-active {
    border-color: var(--ec-primary) !important;
    transform: scale(1.1);
}

Hero Sections

Promo Banner Hero

HTML
<div class="ec-promo-hero ec-card">
    <div class="ec-promo-badge">
        <span class="ec-badge ec-badge-sale ec-badge-lg">SEASON SALE</span>
        <span class="ec-promo-discount">Get 30% OFF with code <strong>STORE30</strong></span>
    </div>

    <h1 class="ec-promo-title">Upgrade Your Daily Essentials</h1>
    <p class="ec-promo-desc">Discover our curated collection of premium accessories, handcrafted with durable sustainable materials and designed for modern life.</p>

    <div class="ec-promo-actions">
        <button class="ec-btn ec-btn-accent ec-btn-lg">Shop The Collection</button>
        <button class="ec-btn ec-btn-outline ec-btn-lg">View Lookbook</button>
    </div>

    <!-- Trust signals below -->
    <div class="ec-hero-trust">
        <div class="ec-trust-item">
            <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none" stroke-linecap="round" stroke-linejoin="round"><rect x="1" y="3" width="15" height="13"/><polygon points="16 8 20 8 23 11 23 16 16 16 16 8"/><circle cx="5.5" cy="18.5" r="2.5"/><circle cx="18.5" cy="18.5" r="2.5"/></svg>
            <span>Free Shipping over $75</span>
        </div>
        <div class="ec-trust-item">
            <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none" stroke-linecap="round" stroke-linejoin="round"><path d="M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z"/></svg>
            <span>Secure 256-bit Checkout</span>
        </div>
        <div class="ec-trust-item">
            <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none" stroke-linecap="round" stroke-linejoin="round"><path d="M21.5 2v6h-6M21.34 15.57a10 10 0 1 1-.57-8.38l5.67-5.67"/></svg>
            <span>30-Day Moneyback Guarantee</span>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Promo Banner Hero */
/* NOTE: This component requires base.css to be included in your page. */

.ec-promo-hero {
    max-width: 1100px;
    margin: 0 auto;
    padding: 4rem 3rem !important;
    text-align: center;
    background: linear-gradient(135deg, var(--ec-primary-muted), #FFFFFF);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.75rem;
    position: relative;
    overflow: hidden;
}

.ec-promo-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(124,58,237,0.06) 0%, transparent 60%);
    pointer-events: none;
}

.ec-promo-badge {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    flex-wrap: wrap;
    justify-content: center;
}

.ec-promo-discount {
    font-family: var(--ec-font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--ec-primary-hover);
}

.ec-promo-title {
    font-size: 3rem;
    font-weight: 800;
    max-width: 800px;
    letter-spacing: -0.03em;
    color: var(--ec-text);
}

.ec-promo-desc {
    font-size: 1.1rem;
    max-width: 680px;
    color: var(--ec-text-muted);
    line-height: 1.7;
}

.ec-promo-actions {
    display: flex;
    gap: 0.85rem;
    justify-content: center;
    flex-wrap: wrap;
}

.ec-hero-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
    border-top: 1px solid var(--ec-border);
    padding-top: 2rem;
    width: 100%;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .ec-promo-title { font-size: 2.15rem; }
    .ec-promo-hero { padding: 3rem 1.5rem !important; }
    .ec-hero-trust { gap: 1rem; }
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-promo-hero {
    max-width: 1100px;
    margin: 0 auto;
    padding: 4rem 3rem !important;
    text-align: center;
    background: linear-gradient(135deg, var(--ec-primary-muted), #FFFFFF);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.75rem;
    position: relative;
    overflow: hidden;
}

.ec-promo-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(124,58,237,0.06) 0%, transparent 60%);
    pointer-events: none;
}

.ec-promo-badge {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    flex-wrap: wrap;
    justify-content: center;
}

.ec-promo-discount {
    font-family: var(--ec-font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--ec-primary-hover);
}

.ec-promo-title {
    font-size: 3rem;
    font-weight: 800;
    max-width: 800px;
    letter-spacing: -0.03em;
    color: var(--ec-text);
}

.ec-promo-desc {
    font-size: 1.1rem;
    max-width: 680px;
    color: var(--ec-text-muted);
    line-height: 1.7;
}

.ec-promo-actions {
    display: flex;
    gap: 0.85rem;
    justify-content: center;
    flex-wrap: wrap;
}

.ec-hero-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
    border-top: 1px solid var(--ec-border);
    padding-top: 2rem;
    width: 100%;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .ec-promo-title { font-size: 2.15rem; }
    .ec-promo-hero { padding: 3rem 1.5rem !important; }
    .ec-hero-trust { gap: 1rem; }
}

Product Feature Split

HTML
<div class="ec-split-hero">
    <div class="ec-split-main ec-card">
        <span class="ec-badge ec-badge-new">NEW ARRIVAL</span>
        <h1 class="ec-split-title">The Ultimate Everyday Backpack</h1>
        <p class="ec-split-desc">Engineered for commuters, travelers, and tech enthusiasts. Weatherproof fabrics, ergonomic shoulder straps, and a dedicated 16-inch laptop pocket.</p>

        <!-- Product features -->
        <ul class="ec-split-features">
            <li>
                <span class="ec-feat-icon">☔</span>
                <div>
                    <strong>Weatherproof Cordura®</strong>
                    <p>Protects your gear from heavy rain and snow.</p>
                </div>
            </li>
            <li>
                <span class="ec-feat-icon">💻</span>
                <div>
                    <strong>Tech Compartment</strong>
                    <p>Suspended sleeves for laptop and tablet protection.</p>
                </div>
            </li>
        </ul>

        <div class="ec-split-actions-row">
            <div class="ec-split-price-box">
                <span class="ec-price ec-price-sale">$129.00</span>
                <span class="ec-price-original">$159.00</span>
            </div>
            <button class="ec-btn ec-btn-primary ec-btn-lg">Add to Cart</button>
            <button class="ec-btn ec-btn-outline ec-btn-lg">Quick View</button>
        </div>
    </div>

    <!-- Right Side: Interactive Product Widget Card -->
    <div class="ec-split-sidebar">
        <div class="ec-preview-widget ec-card">
            <!-- Product image simulator/placeholder (gradient background block with content) -->
            <div class="ec-widget-image-block">
                <span class="ec-badge ec-badge-sale ec-widget-badge">SAVE $30</span>
                <div class="ec-widget-bag-icon">🎒</div>
                <div class="ec-widget-swatches">
                    <span class="ec-widget-swatch active" style="background:#0F172A;"></span>
                    <span class="ec-widget-swatch" style="background:#64748B;"></span>
                    <span class="ec-widget-swatch" style="background:#0284C7;"></span>
                </div>
            </div>

            <div class="ec-widget-info">
                <div class="ec-stars">
                    ⭐⭐⭐⭐⭐
                    <span class="ec-stars-count">(142 reviews)</span>
                </div>
                <h4 class="ec-widget-title">Everyday Commuter Pack</h4>
                <div class="ec-widget-stock">
                    <span class="ec-stock-dot"></span>
                    <span>In stock, ready to ship</span>
                </div>
            </div>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Product Feature Split */
/* NOTE: This component requires base.css to be included in your page. */

.ec-split-hero {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
    align-items: start;
}

.ec-split-main {
    padding: 3rem !important;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
}

.ec-split-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
}

.ec-split-desc {
    font-size: 1.05rem;
    color: var(--ec-text-muted);
    line-height: 1.7;
}

/* Features */
.ec-split-features {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.ec-split-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
}

.ec-feat-icon {
    font-size: 1.25rem;
    width: 36px;
    height: 36px;
    background-color: var(--ec-surface-2);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ec-split-features strong {
    font-family: var(--ec-font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--ec-text);
}

.ec-split-features p {
    font-size: 0.85rem;
    color: var(--ec-text-muted);
    margin-top: 0.1rem;
}

.ec-split-actions-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    flex-wrap: wrap;
    border-top: 1px solid var(--ec-border);
    padding-top: 1.5rem;
    margin-top: 0.5rem;
}

.ec-split-price-box {
    display: flex;
    flex-direction: column;
    margin-right: auto;
}

/* Sidebar Product Widget */
.ec-preview-widget {
    padding: 0 !important;
    overflow: hidden;
}

.ec-widget-image-block {
    height: 260px;
    background: linear-gradient(135deg, var(--ec-primary-muted), #FFFFFF);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ec-widget-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
}

.ec-widget-bag-icon {
    font-size: 5rem;
    filter: drop-shadow(0 8px 16px rgba(15,23,42,0.12));
    transition: var(--ec-transition-slow);
}

.ec-preview-widget:hover .ec-widget-bag-icon {
    transform: scale(1.08) translateY(-4px) rotate(3deg);
}

.ec-widget-swatches {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.4rem;
}

.ec-widget-swatch {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    cursor: pointer;
    border: 1px solid rgba(255,255,255,0.8);
    box-shadow: var(--ec-shadow-xs);
    transition: var(--ec-transition);
}

.ec-widget-swatch.active {
    transform: scale(1.25);
    outline: 2px solid var(--ec-primary);
    outline-offset: 1px;
}

.ec-widget-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.ec-widget-title {
    font-size: 1rem;
    font-weight: 700;
}

.ec-widget-stock {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-success);
}

.ec-stock-dot {
    width: 6px;
    height: 6px;
    background-color: var(--ec-success);
    border-radius: 50%;
    animation: ec-pulse 2s ease infinite;
}

@keyframes ec-pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}

@media (max-width: 900px) {
    .ec-split-hero { grid-template-columns: 1fr; }
    .ec-split-main { padding: 2rem !important; }
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-split-hero {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
    align-items: start;
}

.ec-split-main {
    padding: 3rem !important;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
}

.ec-split-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
}

.ec-split-desc {
    font-size: 1.05rem;
    color: var(--ec-text-muted);
    line-height: 1.7;
}

/* Features */
.ec-split-features {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.ec-split-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
}

.ec-feat-icon {
    font-size: 1.25rem;
    width: 36px;
    height: 36px;
    background-color: var(--ec-surface-2);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ec-split-features strong {
    font-family: var(--ec-font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--ec-text);
}

.ec-split-features p {
    font-size: 0.85rem;
    color: var(--ec-text-muted);
    margin-top: 0.1rem;
}

.ec-split-actions-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    flex-wrap: wrap;
    border-top: 1px solid var(--ec-border);
    padding-top: 1.5rem;
    margin-top: 0.5rem;
}

.ec-split-price-box {
    display: flex;
    flex-direction: column;
    margin-right: auto;
}

/* Sidebar Product Widget */
.ec-preview-widget {
    padding: 0 !important;
    overflow: hidden;
}

.ec-widget-image-block {
    height: 260px;
    background: linear-gradient(135deg, var(--ec-primary-muted), #FFFFFF);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ec-widget-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
}

.ec-widget-bag-icon {
    font-size: 5rem;
    filter: drop-shadow(0 8px 16px rgba(15,23,42,0.12));
    transition: var(--ec-transition-slow);
}

.ec-preview-widget:hover .ec-widget-bag-icon {
    transform: scale(1.08) translateY(-4px) rotate(3deg);
}

.ec-widget-swatches {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.4rem;
}

.ec-widget-swatch {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    cursor: pointer;
    border: 1px solid rgba(255,255,255,0.8);
    box-shadow: var(--ec-shadow-xs);
    transition: var(--ec-transition);
}

.ec-widget-swatch.active {
    transform: scale(1.25);
    outline: 2px solid var(--ec-primary);
    outline-offset: 1px;
}

.ec-widget-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.ec-widget-title {
    font-size: 1rem;
    font-weight: 700;
}

.ec-widget-stock {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-success);
}

.ec-stock-dot {
    width: 6px;
    height: 6px;
    background-color: var(--ec-success);
    border-radius: 50%;
    animation: ec-pulse 2s ease infinite;
}

@keyframes ec-pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}

@media (max-width: 900px) {
    .ec-split-hero { grid-template-columns: 1fr; }
    .ec-split-main { padding: 2rem !important; }
}

Buttons

Store Primary Buttons

HTML
<div class="ec-btn-showcase">
    <div class="ec-showcase-group">
        <span class="ec-showcase-label">Solid Brand Actions</span>
        <div class="ec-btn-row">
            <button class="ec-btn ec-btn-primary">Primary Solid</button>
            <button class="ec-btn ec-btn-accent">Accent Sale CTA</button>
            <button class="ec-btn ec-btn-danger">Remove / Delete</button>
        </div>
    </div>
    
    <div class="ec-showcase-group">
        <span class="ec-showcase-label">Sizes &amp; States</span>
        <div class="ec-btn-row">
            <button class="ec-btn ec-btn-primary ec-btn-sm">Small Cart</button>
            <button class="ec-btn ec-btn-primary ec-btn-lg">Large Checkout</button>
            <button class="ec-btn ec-btn-primary" disabled style="opacity:0.5; cursor:not-allowed;">Disabled</button>
            <button class="ec-btn ec-btn-primary" style="min-width:130px;">
                <svg class="ec-spinner" viewBox="0 0 24 24" width="14" height="14" stroke="currentColor" stroke-width="2.5" fill="none" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12a9 9 0 1 1-6.219-8.56"/></svg>
                Processing…
            </button>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Store Primary Buttons */
/* NOTE: This component requires base.css to be included in your page. */

.ec-btn-showcase { display: flex; flex-direction: column; gap: 2rem; max-width: 700px; }
.ec-showcase-group { display: flex; flex-direction: column; gap: 0.85rem; }
.ec-showcase-label {
    font-family: var(--ec-font-heading);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ec-text-muted);
}
.ec-btn-row { display: flex; gap: 0.85rem; align-items: center; flex-wrap: wrap; }

@keyframes ec-spin {
    to { transform: rotate(360deg); }
}

.ec-spinner {
    animation: ec-spin 0.8s linear infinite;
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-btn-showcase { display: flex; flex-direction: column; gap: 2rem; max-width: 700px; }
.ec-showcase-group { display: flex; flex-direction: column; gap: 0.85rem; }
.ec-showcase-label {
    font-family: var(--ec-font-heading);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ec-text-muted);
}
.ec-btn-row { display: flex; gap: 0.85rem; align-items: center; flex-wrap: wrap; }

@keyframes ec-spin {
    to { transform: rotate(360deg); }
}

.ec-spinner {
    animation: ec-spin 0.8s linear infinite;
}

Store Outline Buttons

HTML
<div class="ec-btn-showcase">
    <div class="ec-showcase-group">
        <span class="ec-showcase-label">Outline &amp; Ghost Buttons</span>
        <div class="ec-btn-row">
            <button class="ec-btn ec-btn-outline">Outline Action</button>
            <button class="ec-btn ec-btn-ghost">Ghost Dismiss</button>
            <button class="ec-btn ec-btn-outline ec-btn-sm">
                <svg viewBox="0 0 24 24" width="13" height="13" stroke="currentColor" stroke-width="2" fill="none" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><polyline points="12 6 12 12 16 14"/></svg>
                Order Status
            </button>
        </div>
    </div>

    <div class="ec-showcase-group">
        <span class="ec-showcase-label">Interactive Icon Buttons</span>
        <div class="ec-btn-row">
            <!-- Wishlist Heart -->
            <button class="ec-btn ec-btn-outline ec-btn-icon text-danger" title="Add to Wishlist">
                <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="currentColor" stroke-linecap="round" stroke-linejoin="round"><path d="M20.84 4.61a5.5 5.5 0 0 0-7.78 0L12 5.67l-1.06-1.06a5.5 5.5 0 0 0-7.78 7.78l1.06 1.06L12 21.23l7.78-7.78 1.06-1.06a5.5 5.5 0 0 0 0-7.78z"/></svg>
            </button>
            <!-- Quick View -->
            <button class="ec-btn ec-btn-outline ec-btn-icon" title="Quick View">
                <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none" stroke-linecap="round" stroke-linejoin="round"><circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>
            </button>
            <!-- Increase qty -->
            <button class="ec-btn ec-btn-outline ec-btn-icon" title="Add Quantity">
                <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none" stroke-linecap="round" stroke-linejoin="round"><line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/></svg>
            </button>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Store Outline Buttons */
/* NOTE: This component requires base.css to be included in your page. */

.ec-btn-showcase { display: flex; flex-direction: column; gap: 2rem; max-width: 700px; }
.ec-showcase-group { display: flex; flex-direction: column; gap: 0.85rem; }
.ec-showcase-label {
    font-family: var(--ec-font-heading);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ec-text-muted);
}
.ec-btn-row { display: flex; gap: 0.85rem; align-items: center; flex-wrap: wrap; }
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-btn-showcase { display: flex; flex-direction: column; gap: 2rem; max-width: 700px; }
.ec-showcase-group { display: flex; flex-direction: column; gap: 0.85rem; }
.ec-showcase-label {
    font-family: var(--ec-font-heading);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ec-text-muted);
}
.ec-btn-row { display: flex; gap: 0.85rem; align-items: center; flex-wrap: wrap; }

Forms

Customer Login

HTML
<div class="ec-login-wrap">
    <div class="ec-login-card ec-card">
        <div class="ec-login-brand">
            <a href="#" class="ec-login-logo">
                <span class="ec-logo-icon" style="font-size:1rem; width:30px; height:30px;">🛍️</span>
                <span>Shopvault</span>
            </a>
            <h2 class="ec-login-title">Welcome Back</h2>
            <p class="ec-login-sub">Sign in to track orders and checkout faster.</p>
        </div>

        <form class="ec-login-form" onsubmit="return false;">
            <div class="ec-form-group">
                <label class="ec-label" for="cust-email">Email Address</label>
                <input type="email" id="cust-email" class="ec-input" placeholder="[email protected]" value="[email protected]">
            </div>

            <div class="ec-form-group">
                <div class="ec-label-row">
                    <label class="ec-label" for="cust-pass">Password</label>
                    <a href="#" class="ec-link-sm">Forgot password?</a>
                </div>
                <input type="password" id="cust-pass" class="ec-input" placeholder="••••••••••" value="••••••••••">
            </div>

            <div class="ec-login-remember">
                <label class="ec-checkbox-label">
                    <input type="checkbox" class="ec-checkbox" checked>
                    <span>Keep me logged in</span>
                </label>
            </div>

            <button type="submit" class="ec-btn ec-btn-primary ec-btn-block ec-btn-lg">Sign In</button>
        </form>

        <div class="ec-login-divider">
            <span>or sign in with</span>
        </div>

        <div class="ec-social-login">
            <button class="ec-btn ec-btn-outline ec-btn-block">
                <svg viewBox="0 0 24 24" width="16" height="16" fill="currentColor" style="margin-right:0.25rem;"><path d="M12.24 10.285V13.4h6.887C18.2 15.614 15.645 18 12.24 18c-3.86 0-7-3.14-7-7s3.14-7 7-7c1.7 0 3.3.6 4.6 1.8l2.4-2.4C17.3 1.7 14.9 1 12.24 1c-5.5 0-10 4.5-10 10s4.5 10 10 10c5.8 0 9.8-4.1 9.8-10 0-.6 0-1.1-.1-1.7H12.24z"/></svg>
                Google
            </button>
        </div>

        <div class="ec-login-signup">
            <span>New customer?</span> <a href="#" class="ec-link-sm">Create an account</a>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Customer Login */
/* NOTE: This component requires base.css to be included in your page. */

.ec-login-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 560px;
    background-color: var(--ec-bg);
    padding: 2rem;
}

.ec-login-card {
    width: 100%;
    max-width: 420px;
    padding: 2.5rem !important;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.ec-login-brand {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.ec-login-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-login-title {
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.ec-login-sub {
    font-size: 0.9rem;
    color: var(--ec-text-muted);
}

.ec-login-form {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.ec-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.ec-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}

.ec-login-remember {
    display: flex;
    align-items: center;
}

.ec-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-body);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    cursor: pointer;
    user-select: none;
}

.ec-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--ec-primary);
    cursor: pointer;
}

.ec-login-divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--ec-text-light);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ec-login-divider::before, .ec-login-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--ec-border);
}

.ec-login-divider:not(:empty)::before { margin-right: .75em; }
.ec-login-divider:not(:empty)::after { margin-left: .75em; }

.ec-login-signup {
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-top: 0.5rem;
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-login-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 560px;
    background-color: var(--ec-bg);
    padding: 2rem;
}

.ec-login-card {
    width: 100%;
    max-width: 420px;
    padding: 2.5rem !important;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.ec-login-brand {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.ec-login-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-login-title {
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.ec-login-sub {
    font-size: 0.9rem;
    color: var(--ec-text-muted);
}

.ec-login-form {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.ec-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.ec-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}

.ec-login-remember {
    display: flex;
    align-items: center;
}

.ec-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-body);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    cursor: pointer;
    user-select: none;
}

.ec-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--ec-primary);
    cursor: pointer;
}

.ec-login-divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--ec-text-light);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ec-login-divider::before, .ec-login-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--ec-border);
}

.ec-login-divider:not(:empty)::before { margin-right: .75em; }
.ec-login-divider:not(:empty)::after { margin-left: .75em; }

.ec-login-signup {
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-top: 0.5rem;
}

Shipping & Billing

HTML
<div class="ec-settings-panel">
    <div class="ec-settings-header">
        <div>
            <h3>Shipping &amp; Billing</h3>
            <p>Manage your delivery addresses and payment configurations.</p>
        </div>
        <div class="ec-settings-acts">
            <button class="ec-btn ec-btn-outline ec-btn-sm">Discard</button>
            <button class="ec-btn ec-btn-primary ec-btn-sm">Save Changes</button>
        </div>
    </div>

    <div class="ec-settings-body">
        <section class="ec-settings-sec ec-card">
            <h4>Shipping Address</h4>
            <p>Where your purchases will be delivered.</p>
            <hr class="ec-divider">
            <div class="ec-settings-grid">
                <div class="ec-form-group">
                    <label class="ec-label" for="shp-first">First Name</label>
                    <input type="text" id="shp-first" class="ec-input" value="Sarah">
                </div>
                <div class="ec-form-group">
                    <label class="ec-label" for="shp-last">Last Name</label>
                    <input type="text" id="shp-last" class="ec-input" value="Jenkins">
                </div>
                <div class="ec-form-group" style="grid-column: span 2;">
                    <label class="ec-label" for="shp-addr">Street Address</label>
                    <input type="text" id="shp-addr" class="ec-input" value="120 Cedar Lane, Apt 4B">
                </div>
                <div class="ec-form-group">
                    <label class="ec-label" for="shp-city">City</label>
                    <input type="text" id="shp-city" class="ec-input" value="New York">
                </div>
                <div class="ec-form-group">
                    <label class="ec-label" for="shp-zip">ZIP / Postal Code</label>
                    <input type="text" id="shp-zip" class="ec-input" value="10001">
                </div>
            </div>
            <div class="ec-form-inline">
                <label class="ec-checkbox-label">
                    <input type="checkbox" class="ec-checkbox" checked>
                    <span>Set as default shipping address</span>
                </label>
            </div>
        </section>

        <section class="ec-settings-sec ec-card">
            <h4>Billing Preferences</h4>
            <p>Manage how you pay and receive invoices.</p>
            <hr class="ec-divider">
            <div class="ec-toggle-list">
                <div class="ec-toggle-row">
                    <div>
                        <div class="ec-toggle-label">Same as Shipping</div>
                        <div class="ec-toggle-desc">Set billing address identical to delivery.</div>
                    </div>
                    <label class="ec-toggle"><input type="checkbox" checked><span class="ec-toggle-slider"></span></label>
                </div>
                <hr class="ec-divider">
                <div class="ec-toggle-row">
                    <div>
                        <div class="ec-toggle-label">Save Card for One-click Checkout</div>
                        <div class="ec-toggle-desc">Store credit card securely for faster purchases.</div>
                    </div>
                    <label class="ec-toggle"><input type="checkbox"><span class="ec-toggle-slider"></span></label>
                </div>
            </div>
        </section>
    </div>
</div>
CSS (Component Only)
/* Component: Shipping & Billing */
/* NOTE: This component requires base.css to be included in your page. */

.ec-settings-panel {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.ec-settings-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-settings-header h3 {
    font-size: 1.35rem;
    margin-bottom: 0.3rem;
}

.ec-settings-acts {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

.ec-settings-body {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.ec-settings-sec {
    padding: 2rem !important;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.ec-settings-sec h4 {
    font-size: 1rem;
}

.ec-settings-sec > p {
    font-size: 0.88rem;
    margin-top: -0.75rem;
}

.ec-settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.ec-form-inline {
    display: flex;
    align-items: center;
    margin-top: 0.5rem;
}

.ec-toggle-list {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.ec-toggle-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 2rem;
}

.ec-toggle-label {
    font-family: var(--ec-font-heading);
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--ec-text);
    margin-bottom: 0.2rem;
}

.ec-toggle-desc {
    font-size: 0.83rem;
    color: var(--ec-text-muted);
    font-weight: 500;
    line-height: 1.5;
}

@media (max-width: 600px) {
    .ec-settings-grid { grid-template-columns: 1fr; }
    .ec-settings-grid > div { grid-column: span 1 !important; }
    .ec-settings-header { flex-direction: column; }
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-settings-panel {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.ec-settings-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-settings-header h3 {
    font-size: 1.35rem;
    margin-bottom: 0.3rem;
}

.ec-settings-acts {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

.ec-settings-body {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.ec-settings-sec {
    padding: 2rem !important;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.ec-settings-sec h4 {
    font-size: 1rem;
}

.ec-settings-sec > p {
    font-size: 0.88rem;
    margin-top: -0.75rem;
}

.ec-settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.ec-form-inline {
    display: flex;
    align-items: center;
    margin-top: 0.5rem;
}

.ec-toggle-list {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.ec-toggle-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 2rem;
}

.ec-toggle-label {
    font-family: var(--ec-font-heading);
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--ec-text);
    margin-bottom: 0.2rem;
}

.ec-toggle-desc {
    font-size: 0.83rem;
    color: var(--ec-text-muted);
    font-weight: 500;
    line-height: 1.5;
}

@media (max-width: 600px) {
    .ec-settings-grid { grid-template-columns: 1fr; }
    .ec-settings-grid > div { grid-column: span 1 !important; }
    .ec-settings-header { flex-direction: column; }
}

Cards

Product Cards

HTML
<div class="ec-product-grid">
    <!-- Product 1: Sale Item -->
    <div class="ec-product-card ec-card">
        <div class="ec-product-media">
            <span class="ec-badge ec-badge-sale ec-product-badge">SALE −20%</span>
            <div class="ec-product-placeholder">🎧</div>
            <div class="ec-product-hover-actions">
                <button class="ec-product-action-btn" title="Add to Wishlist">
                    <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none"><path d="M20.84 4.61a5.5 5.5 0 0 0-7.78 0L12 5.67l-1.06-1.06a5.5 5.5 0 0 0-7.78 7.78l1.06 1.06L12 21.23l7.78-7.78 1.06-1.06a5.5 5.5 0 0 0 0-7.78z"/></svg>
                </button>
                <button class="ec-product-action-btn" title="Quick View">
                    <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none"><circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>
                </button>
            </div>
        </div>
        <div class="ec-product-details">
            <span class="ec-product-cat text-muted">Electronics</span>
            <h4 class="ec-product-title">Noise-Cancelling Wireless Headphones</h4>
            <div class="ec-stars">
                ⭐⭐⭐⭐⭐
                <span class="ec-stars-count">(84)</span>
            </div>
            <div class="ec-product-price-row">
                <div class="ec-price-box">
                    <span class="ec-price ec-price-sale">$199.00</span>
                    <span class="ec-price-original">$249.00</span>
                </div>
                <button class="ec-btn ec-btn-primary ec-btn-sm ec-btn-icon" title="Add to Cart">
                    <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none"><line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/></svg>
                </button>
            </div>
        </div>
    </div>

    <!-- Product 2: Sold Out Item -->
    <div class="ec-product-card ec-card ec-product-soldout">
        <div class="ec-product-media">
            <span class="ec-badge ec-badge-default ec-product-badge">SOLD OUT</span>
            <div class="ec-product-placeholder">🕶️</div>
        </div>
        <div class="ec-product-details">
            <span class="ec-product-cat text-muted">Accessories</span>
            <h4 class="ec-product-title">Polarized Retro Sunglasses</h4>
            <div class="ec-stars">
                ⭐⭐⭐⭐☆
                <span class="ec-stars-count">(42)</span>
            </div>
            <div class="ec-product-price-row">
                <div class="ec-price-box">
                    <span class="ec-price">$49.00</span>
                </div>
                <button class="ec-btn ec-btn-outline ec-btn-sm" disabled style="cursor:not-allowed;">Out of Stock</button>
            </div>
        </div>
    </div>

    <!-- Product 3: New Arrival -->
    <div class="ec-product-card ec-card">
        <div class="ec-product-media">
            <span class="ec-badge ec-badge-new ec-product-badge">NEW</span>
            <div class="ec-product-placeholder">⌚</div>
            <div class="ec-product-hover-actions">
                <button class="ec-product-action-btn" title="Add to Wishlist">
                    <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none"><path d="M20.84 4.61a5.5 5.5 0 0 0-7.78 0L12 5.67l-1.06-1.06a5.5 5.5 0 0 0-7.78 7.78l1.06 1.06L12 21.23l7.78-7.78 1.06-1.06a5.5 5.5 0 0 0 0-7.78z"/></svg>
                </button>
                <button class="ec-product-action-btn" title="Quick View">
                    <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none"><circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>
                </button>
            </div>
        </div>
        <div class="ec-product-details">
            <span class="ec-product-cat text-muted">Wearables</span>
            <h4 class="ec-product-title">Minimalist Quartz Wristwatch</h4>
            <div class="ec-stars">
                ⭐⭐⭐⭐⭐
                <span class="ec-stars-count">(19)</span>
            </div>
            <div class="ec-product-price-row">
                <div class="ec-price-box">
                    <span class="ec-price">$120.00</span>
                </div>
                <button class="ec-btn ec-btn-primary ec-btn-sm ec-btn-icon" title="Add to Cart">
                    <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none"><line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/></svg>
                </button>
            </div>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Product Cards */
/* NOTE: This component requires base.css to be included in your page. */

.ec-product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.ec-product-card {
    padding: 0 !important;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.ec-product-media {
    height: 240px;
    background-color: var(--ec-surface-2);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.ec-product-placeholder {
    font-size: 5rem;
    filter: drop-shadow(0 8px 16px rgba(15,23,42,0.08));
    transition: var(--ec-transition-slow);
}

.ec-product-card:hover .ec-product-placeholder {
    transform: scale(1.08) translateY(-4px);
}

.ec-product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    z-index: 2;
}

.ec-product-hover-actions {
    position: absolute;
    inset: 0;
    background-color: rgba(15,23,42,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    opacity: 0;
    pointer-events: none;
    transition: var(--ec-transition);
}

.ec-product-card:hover .ec-product-hover-actions {
    opacity: 1;
    pointer-events: auto;
}

.ec-product-action-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: none;
    background-color: var(--ec-surface);
    color: var(--ec-text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--ec-transition);
    box-shadow: var(--ec-shadow-sm);
}

.ec-product-action-btn:hover {
    background-color: var(--ec-primary);
    color: #fff;
    transform: translateY(-2px);
}

.ec-product-details {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    flex: 1;
}

.ec-product-cat {
    font-family: var(--ec-font-heading);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ec-product-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--ec-text);
    line-height: 1.4;
    height: 2.8em;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.ec-product-price-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.5rem;
    border-top: 1px solid var(--ec-border);
    padding-top: 1rem;
}

.ec-price-box {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

/* Soldout State */
.ec-product-soldout .ec-product-placeholder {
    opacity: 0.4;
}

.ec-product-soldout .ec-product-details {
    opacity: 0.75;
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.ec-product-card {
    padding: 0 !important;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.ec-product-media {
    height: 240px;
    background-color: var(--ec-surface-2);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.ec-product-placeholder {
    font-size: 5rem;
    filter: drop-shadow(0 8px 16px rgba(15,23,42,0.08));
    transition: var(--ec-transition-slow);
}

.ec-product-card:hover .ec-product-placeholder {
    transform: scale(1.08) translateY(-4px);
}

.ec-product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    z-index: 2;
}

.ec-product-hover-actions {
    position: absolute;
    inset: 0;
    background-color: rgba(15,23,42,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    opacity: 0;
    pointer-events: none;
    transition: var(--ec-transition);
}

.ec-product-card:hover .ec-product-hover-actions {
    opacity: 1;
    pointer-events: auto;
}

.ec-product-action-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: none;
    background-color: var(--ec-surface);
    color: var(--ec-text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--ec-transition);
    box-shadow: var(--ec-shadow-sm);
}

.ec-product-action-btn:hover {
    background-color: var(--ec-primary);
    color: #fff;
    transform: translateY(-2px);
}

.ec-product-details {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    flex: 1;
}

.ec-product-cat {
    font-family: var(--ec-font-heading);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ec-product-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--ec-text);
    line-height: 1.4;
    height: 2.8em;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.ec-product-price-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.5rem;
    border-top: 1px solid var(--ec-border);
    padding-top: 1rem;
}

.ec-price-box {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

/* Soldout State */
.ec-product-soldout .ec-product-placeholder {
    opacity: 0.4;
}

.ec-product-soldout .ec-product-details {
    opacity: 0.75;
}

Store Metrics

HTML
<div class="ec-stats-grid">
    <!-- Stat 1 -->
    <div class="ec-stat-card ec-card">
        <div class="ec-stat-head">
            <div class="ec-stat-ico" style="background:var(--ec-primary-muted); color:var(--ec-primary);">
                <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none"><line x1="12" y1="1" x2="12" y2="23"/><path d="M17 5H9.5a3.5 3.5 0 0 0 0 7h5a3.5 3.5 0 0 1 0 7H6"/></svg>
            </div>
            <span class="ec-badge ec-badge-success">▲ 12.8%</span>
        </div>
        <div class="ec-stat-val">$24,920</div>
        <div class="ec-stat-lbl">Store Revenue</div>
        <div class="ec-stat-bar-wrap">
            <div class="ec-stat-bar" style="width:78%; background:var(--ec-primary);"></div>
        </div>
    </div>

    <!-- Stat 2 -->
    <div class="ec-stat-card ec-card">
        <div class="ec-stat-head">
            <div class="ec-stat-ico" style="background:var(--ec-success-muted); color:var(--ec-success);">
                <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none"><polyline points="23 6 13.5 15.5 8.5 10.5 1 18"/><polyline points="17 6 23 6 23 12"/></svg>
            </div>
            <span class="ec-badge ec-badge-success">▲ 2.1%</span>
        </div>
        <div class="ec-stat-val">3.42%</div>
        <div class="ec-stat-lbl">Conversion Rate</div>
        <div class="ec-stat-bar-wrap">
            <div class="ec-stat-bar" style="width:58%; background:var(--ec-success);"></div>
        </div>
    </div>

    <!-- Stat 3 -->
    <div class="ec-stat-card ec-card">
        <div class="ec-stat-head">
            <div class="ec-stat-ico" style="background:var(--ec-accent-muted); color:var(--ec-accent);">
                <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none"><circle cx="9" cy="21" r="1"/><circle cx="20" cy="21" r="1"/><path d="M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6"/></svg>
            </div>
            <span class="ec-badge ec-badge-default">Steady</span>
        </div>
        <div class="ec-stat-val">$84.50</div>
        <div class="ec-stat-lbl">Avg Order Value</div>
        <div class="ec-stat-bar-wrap">
            <div class="ec-stat-bar" style="width:45%; background:var(--ec-accent);"></div>
        </div>
    </div>

    <!-- Stat 4 -->
    <div class="ec-stat-card ec-card">
        <div class="ec-stat-head">
            <div class="ec-stat-ico" style="background:var(--ec-danger-muted); color:var(--ec-danger);">
                <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>
            </div>
            <span class="ec-badge ec-badge-danger">▼ 4.3%</span>
        </div>
        <div class="ec-stat-val">24.2%</div>
        <div class="ec-stat-lbl">Cart Abandonment</div>
        <div class="ec-stat-bar-wrap">
            <div class="ec-stat-bar" style="width:34%; background:var(--ec-danger);"></div>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Store Metrics */
/* NOTE: This component requires base.css to be included in your page. */

.ec-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    max-width: 1100px;
    margin: 0 auto;
}

.ec-stat-card {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    padding: 1.5rem !important;
}

.ec-stat-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.15rem;
}

.ec-stat-ico {
    width: 36px;
    height: 36px;
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ec-stat-val {
    font-family: var(--ec-font-heading);
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.025em;
    line-height: 1;
}

.ec-stat-lbl {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--ec-text-muted);
}

.ec-stat-bar-wrap {
    height: 4px;
    background-color: var(--ec-border);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.ec-stat-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s ease;
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    max-width: 1100px;
    margin: 0 auto;
}

.ec-stat-card {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    padding: 1.5rem !important;
}

.ec-stat-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.15rem;
}

.ec-stat-ico {
    width: 36px;
    height: 36px;
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ec-stat-val {
    font-family: var(--ec-font-heading);
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.025em;
    line-height: 1;
}

.ec-stat-lbl {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--ec-text-muted);
}

.ec-stat-bar-wrap {
    height: 4px;
    background-color: var(--ec-border);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.ec-stat-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s ease;
}

Tables

Order History Table

HTML
<div class="ec-table-wrap ec-card">
    <div class="ec-table-toolbar">
        <div class="ec-table-toolbar-left">
            <h4>Order History</h4>
            <span class="ec-badge ec-badge-default">12 Orders Total</span>
        </div>
        <div class="ec-table-toolbar-right">
            <div class="ec-search-wrap">
                <svg class="ec-search-ico" viewBox="0 0 24 24" width="14" height="14" stroke="currentColor" stroke-width="2" fill="none"><circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>
                <input type="text" class="ec-input ec-search-input" placeholder="Search orders…">
            </div>
            <select class="ec-select" style="width:auto;">
                <option>All Statuses</option>
                <option>Delivered</option>
                <option>In Transit</option>
                <option>Processing</option>
                <option>Cancelled</option>
            </select>
        </div>
    </div>

    <div class="ec-table-scroll">
        <table class="ec-data-table">
            <thead>
                <tr>
                    <th>Order ID</th>
                    <th>Date Placed</th>
                    <th>Product Details</th>
                    <th>Quantity</th>
                    <th>Total Price</th>
                    <th>Delivery Status</th>
                    <th>Actions</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td class="ec-td-mono" style="font-weight:700;">#SV-2049</td>
                    <td class="ec-td-mono text-muted">18 May 2026</td>
                    <td>
                        <div class="ec-prod-cell">
                            <span class="ec-prod-thumb">🎧</span>
                            <div>
                                <span class="ec-prod-name">Noise-Cancelling Headphones</span>
                                <span class="ec-prod-meta text-muted">Color: Carbon Black</span>
                            </div>
                        </div>
                    </td>
                    <td class="ec-td-mono">1</td>
                    <td class="ec-td-mono" style="font-weight:800;">$199.00</td>
                    <td><span class="ec-badge ec-badge-success">Delivered</span></td>
                    <td>
                        <button class="ec-btn ec-btn-outline ec-btn-sm">
                            <svg viewBox="0 0 24 24" width="12" height="12" stroke="currentColor" stroke-width="2.5" fill="none" style="margin-right:0.2rem;"><path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/><polyline points="7 10 12 15 17 10"/><line x1="12" y1="15" x2="12" y2="3"/></svg>
                            Invoice
                        </button>
                    </td>
                </tr>
                <tr>
                    <td class="ec-td-mono" style="font-weight:700;">#SV-2045</td>
                    <td class="ec-td-mono text-muted">15 May 2026</td>
                    <td>
                        <div class="ec-prod-cell">
                            <span class="ec-prod-thumb">🎒</span>
                            <div>
                                <span class="ec-prod-name">Everyday Commuter Pack</span>
                                <span class="ec-prod-meta text-muted">Size: 24 Liters</span>
                            </div>
                        </div>
                    </td>
                    <td class="ec-td-mono">1</td>
                    <td class="ec-td-mono" style="font-weight:800;">$129.00</td>
                    <td><span class="ec-badge ec-badge-pending">In Transit</span></td>
                    <td>
                        <button class="ec-btn ec-btn-outline ec-btn-sm">Track</button>
                    </td>
                </tr>
                <tr>
                    <td class="ec-td-mono" style="font-weight:700;">#SV-2041</td>
                    <td class="ec-td-mono text-muted">12 May 2026</td>
                    <td>
                        <div class="ec-prod-cell">
                            <span class="ec-prod-thumb">⌚</span>
                            <div>
                                <span class="ec-prod-name">Quartz Wristwatch</span>
                                <span class="ec-prod-meta text-muted">Material: Silver Steel</span>
                            </div>
                        </div>
                    </td>
                    <td class="ec-td-mono">2</td>
                    <td class="ec-td-mono" style="font-weight:800;">$240.00</td>
                    <td><span class="ec-badge ec-badge-default">Processing</span></td>
                    <td>
                        <button class="ec-btn ec-btn-ghost ec-btn-sm text-danger">Cancel</button>
                    </td>
                </tr>
            </tbody>
        </table>
    </div>

    <div class="ec-table-pagination">
        <span class="text-muted" style="font-size:0.85rem;">Showing 1–3 of 12 orders</span>
        <div class="ec-pagination-btns">
            <button class="ec-btn ec-btn-outline ec-btn-sm" disabled style="opacity:.45;">← Prev</button>
            <button class="ec-btn ec-btn-primary ec-btn-sm">1</button>
            <button class="ec-btn ec-btn-outline ec-btn-sm">2</button>
            <button class="ec-btn ec-btn-outline ec-btn-sm">Next →</button>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Order History Table */
/* NOTE: This component requires base.css to be included in your page. */

.ec-table-wrap {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 !important;
    overflow: hidden;
}

.ec-table-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--ec-border);
    flex-wrap: wrap;
}

.ec-table-toolbar-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ec-table-toolbar-left h4 {
    font-size: 1rem;
    font-weight: 700;
}

.ec-table-toolbar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.ec-search-wrap {
    position: relative;
}

.ec-search-ico {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ec-text-light);
    pointer-events: none;
}

.ec-search-input {
    padding-left: 2.25rem;
    width: 190px;
}

.ec-table-scroll {
    overflow-x: auto;
}

.ec-data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.ec-data-table thead tr {
    background-color: var(--ec-surface-2);
    border-bottom: 1px solid var(--ec-border);
}

.ec-data-table th {
    padding: 0.75rem 1rem;
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--ec-text-muted);
    text-align: left;
    white-space: nowrap;
}

.ec-data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--ec-border);
    color: var(--ec-text);
    font-weight: 600;
    vertical-align: middle;
}

.ec-data-table tbody tr:last-child td {
    border-bottom: none;
}

.ec-data-table tbody tr:hover td {
    background-color: var(--ec-surface-2);
}

.ec-td-mono {
    font-family: var(--ec-font-heading);
    font-size: 0.85rem;
}

.ec-prod-cell {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ec-prod-thumb {
    width: 38px;
    height: 38px;
    background-color: var(--ec-surface-2);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.ec-prod-name {
    display: block;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    color: var(--ec-text);
}

.ec-prod-meta {
    font-size: 0.75rem;
    font-weight: 500;
}

.ec-table-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--ec-border);
    gap: 1rem;
    flex-wrap: wrap;
}

.ec-pagination-btns {
    display: flex;
    gap: 0.4rem;
    align-items: center;
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-table-wrap {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 !important;
    overflow: hidden;
}

.ec-table-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--ec-border);
    flex-wrap: wrap;
}

.ec-table-toolbar-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ec-table-toolbar-left h4 {
    font-size: 1rem;
    font-weight: 700;
}

.ec-table-toolbar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.ec-search-wrap {
    position: relative;
}

.ec-search-ico {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ec-text-light);
    pointer-events: none;
}

.ec-search-input {
    padding-left: 2.25rem;
    width: 190px;
}

.ec-table-scroll {
    overflow-x: auto;
}

.ec-data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.ec-data-table thead tr {
    background-color: var(--ec-surface-2);
    border-bottom: 1px solid var(--ec-border);
}

.ec-data-table th {
    padding: 0.75rem 1rem;
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--ec-text-muted);
    text-align: left;
    white-space: nowrap;
}

.ec-data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--ec-border);
    color: var(--ec-text);
    font-weight: 600;
    vertical-align: middle;
}

.ec-data-table tbody tr:last-child td {
    border-bottom: none;
}

.ec-data-table tbody tr:hover td {
    background-color: var(--ec-surface-2);
}

.ec-td-mono {
    font-family: var(--ec-font-heading);
    font-size: 0.85rem;
}

.ec-prod-cell {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ec-prod-thumb {
    width: 38px;
    height: 38px;
    background-color: var(--ec-surface-2);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.ec-prod-name {
    display: block;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    color: var(--ec-text);
}

.ec-prod-meta {
    font-size: 0.75rem;
    font-weight: 500;
}

.ec-table-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--ec-border);
    gap: 1rem;
    flex-wrap: wrap;
}

.ec-pagination-btns {
    display: flex;
    gap: 0.4rem;
    align-items: center;
}

Lists

Order Status Feed

HTML
<div class="ec-activity-card ec-card">
    <div class="ec-activity-head">
        <h4>Order Status Timeline</h4>
        <span class="ec-badge ec-badge-pending">Order #SV-2045</span>
    </div>

    <div class="ec-activity-list">
        <!-- Milestone 1 -->
        <div class="ec-activity-item active">
            <div class="ec-act-ico" style="background:var(--ec-primary-muted); color:var(--ec-primary);">
                <svg viewBox="0 0 24 24" width="14" height="14" stroke="currentColor" stroke-width="2.5" fill="none"><circle cx="12" cy="12" r="10"/><polyline points="12 6 12 12 16 14"/></svg>
            </div>
            <div class="ec-act-content">
                <div class="ec-act-top">
                    <span class="ec-act-label">In Transit — Shipped via UPS</span>
                    <span class="ec-act-time">Today, 02:40 pm</span>
                </div>
                <span class="ec-act-meta">Tracking number: <a href="#" class="ec-link-sm">1Z999AA10123456784</a>. Estimated delivery: Thursday, 21 May.</span>
            </div>
        </div>

        <div class="ec-activity-line"></div>

        <!-- Milestone 2 -->
        <div class="ec-activity-item">
            <div class="ec-act-ico" style="background:var(--ec-success-muted); color:var(--ec-success);">
                <svg viewBox="0 0 24 24" width="14" height="14" stroke="currentColor" stroke-width="2.5" fill="none"><polyline points="20 6 9 17 4 12"/></svg>
            </div>
            <div class="ec-act-content">
                <div class="ec-act-top">
                    <span class="ec-act-label">Payment Confirmed Securely</span>
                    <span class="ec-act-time">15 May, 10:15 am</span>
                </div>
                <span class="ec-act-meta">Authorized via Credit Card (Stripe). Auth code: #482910.</span>
            </div>
        </div>

        <div class="ec-activity-line"></div>

        <!-- Milestone 3 -->
        <div class="ec-activity-item">
            <div class="ec-act-ico" style="background:var(--ec-surface-2); color:var(--ec-text-muted);">
                <svg viewBox="0 0 24 24" width="14" height="14" stroke="currentColor" stroke-width="2.5" fill="none"><path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/><polyline points="14 2 14 8 20 8"/></svg>
            </div>
            <div class="ec-act-content">
                <div class="ec-act-top">
                    <span class="ec-act-label">Order Received &amp; Registered</span>
                    <span class="ec-act-time">15 May, 09:30 am</span>
                </div>
                <span class="ec-act-meta">Order details submitted and sent to fulfillment facility.</span>
            </div>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Order Status Feed */
/* NOTE: This component requires base.css to be included in your page. */

.ec-activity-card {
    max-width: 520px;
    margin: 0 auto;
    padding: 0 !important;
    overflow: hidden;
}

.ec-activity-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--ec-border);
}

.ec-activity-head h4 {
    font-size: 1rem;
    font-weight: 700;
}

.ec-activity-list {
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    position: relative;
}

.ec-activity-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    position: relative;
    z-index: 2;
    padding-bottom: 1.5rem;
}

.ec-activity-item:last-of-type {
    padding-bottom: 0;
}

.ec-activity-item:not(:last-of-type)::after {
    content: '';
    position: absolute;
    top: 32px; /* Bottom of 32px icon */
    left: 15px; /* Center of 32px icon */
    bottom: 0;
    width: 2px;
    background-color: var(--ec-border);
    z-index: 1;
}


.ec-act-ico {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--ec-shadow-xs);
}

.ec-act-content {
    flex: 1;
    min-width: 0;
}

.ec-act-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.ec-act-label {
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--ec-text);
}

.ec-act-time {
    font-family: var(--ec-font-body);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--ec-text-light);
    white-space: nowrap;
}

.ec-act-meta {
    font-size: 0.8rem;
    color: var(--ec-text-muted);
    font-weight: 500;
    line-height: 1.5;
    display: block;
}

/* Timeline Vertical Line */
.ec-activity-line {
    display: none;
}


.ec-activity-item.active .ec-act-ico {
    outline: 4px solid var(--ec-primary-muted);
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-activity-card {
    max-width: 520px;
    margin: 0 auto;
    padding: 0 !important;
    overflow: hidden;
}

.ec-activity-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--ec-border);
}

.ec-activity-head h4 {
    font-size: 1rem;
    font-weight: 700;
}

.ec-activity-list {
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    position: relative;
}

.ec-activity-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    position: relative;
    z-index: 2;
    padding-bottom: 1.5rem;
}

.ec-activity-item:last-of-type {
    padding-bottom: 0;
}

.ec-activity-item:not(:last-of-type)::after {
    content: '';
    position: absolute;
    top: 32px; /* Bottom of 32px icon */
    left: 15px; /* Center of 32px icon */
    bottom: 0;
    width: 2px;
    background-color: var(--ec-border);
    z-index: 1;
}


.ec-act-ico {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--ec-shadow-xs);
}

.ec-act-content {
    flex: 1;
    min-width: 0;
}

.ec-act-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.ec-act-label {
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--ec-text);
}

.ec-act-time {
    font-family: var(--ec-font-body);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--ec-text-light);
    white-space: nowrap;
}

.ec-act-meta {
    font-size: 0.8rem;
    color: var(--ec-text-muted);
    font-weight: 500;
    line-height: 1.5;
    display: block;
}

/* Timeline Vertical Line */
.ec-activity-line {
    display: none;
}


.ec-activity-item.active .ec-act-ico {
    outline: 4px solid var(--ec-primary-muted);
}

Modals

Cart Confirm Dialog

HTML
<div class="ec-modal-backdrop">
    <div class="ec-modal ec-card">
        <div class="ec-modal-head">
            <div class="ec-modal-title-row">
                <div class="ec-modal-ico" style="background:var(--ec-success-muted); color:var(--ec-success);">
                    <svg viewBox="0 0 24 24" width="18" height="18" stroke="currentColor" stroke-width="2.5" fill="none"><polyline points="20 6 9 17 4 12"/></svg>
                </div>
                <div>
                    <h4>Added to Cart</h4>
                    <p class="ec-modal-meta">Item successfully registered to your session.</p>
                </div>
            </div>
            <button class="ec-btn ec-btn-ghost ec-btn-icon" aria-label="Close">
                <svg viewBox="0 0 24 24" width="15" height="15" stroke="currentColor" stroke-width="2.5" fill="none"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>
            </button>
        </div>

        <div class="ec-modal-body">
            <div class="ec-cart-summary">
                <div class="ec-cart-prod-row">
                    <span class="ec-cart-prod-thumb">🎧</span>
                    <div class="ec-cart-prod-info">
                        <strong>Noise-Cancelling Headphones</strong>
                        <p class="text-muted" style="font-size:0.78rem; margin-top:0.1rem;">Qty: 1 &nbsp;·&nbsp; Color: Carbon Black</p>
                    </div>
                    <span class="ec-price ec-price-sale" style="font-size:1.05rem;">$199.00</span>
                </div>
                
                <hr class="ec-divider">
                
                <div class="ec-cart-totals">
                    <div class="ec-total-row">
                        <span class="text-muted">Cart Subtotal (3 items)</span>
                        <span class="font-mono" style="font-weight:700;">$328.00</span>
                    </div>
                    <div class="ec-total-row text-success">
                        <span>Fulfillment &amp; Shipping</span>
                        <span style="font-weight:700;">FREE</span>
                    </div>
                </div>
            </div>

            <!-- Trust Alert/Signal Inside Modal -->
            <div class="ec-modal-trust-alert">
                <svg viewBox="0 0 24 24" width="14" height="14" stroke="currentColor" stroke-width="2.5" fill="none" style="flex-shrink:0;"><path d="M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z"/></svg>
                <span>Items in your cart are not reserved. Checkout now to secure stock.</span>
            </div>
        </div>

        <div class="ec-modal-foot">
            <button class="ec-btn ec-btn-outline">Continue Shopping</button>
            <button class="ec-btn ec-btn-primary">Proceed to Checkout</button>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Cart Confirm Dialog */
/* NOTE: This component requires base.css to be included in your page. */

.ec-modal-backdrop {
    background-color: rgba(15,23,42,0.45);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    border-radius: var(--ec-radius);
    max-width: 700px;
    margin: 0 auto;
}

.ec-modal {
    width: 100%;
    max-width: 480px;
    padding: 0 !important;
    overflow: hidden;
}

.ec-modal-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.5rem;
    border-bottom: 1px solid var(--ec-border);
}

.ec-modal-title-row {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.ec-modal-ico {
    width: 40px;
    height: 40px;
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ec-modal-head h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.15rem;
}

.ec-modal-meta {
    font-size: 0.8rem;
    font-weight: 600;
}

.ec-modal-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.ec-cart-summary {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background-color: var(--ec-surface-2);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    padding: 1.25rem;
}

.ec-cart-prod-row {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.ec-cart-prod-thumb {
    width: 42px;
    height: 42px;
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}

.ec-cart-prod-info {
    flex: 1;
    min-width: 0;
}

.ec-cart-prod-info strong {
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--ec-text);
}

.ec-cart-totals {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.ec-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    font-weight: 600;
}

.ec-modal-trust-alert {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background-color: var(--ec-accent-muted);
    color: #9A3412;
    border: 1px solid rgba(249,115,22,0.15);
    border-radius: var(--ec-radius-sm);
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    line-height: 1.4;
}

.ec-modal-foot {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--ec-border);
    background-color: var(--ec-surface-2);
}
Combined CSS (Includes Base)
/* 
   COMBINED CSS
   Includes base resets/variables + component styles.
   Use this if you haven't included base.css elsewhere.
*/

/* --- BASE STYLES --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Nunito:wght@400;500;600;700;800&display=swap');

/* ===========================
   E-commerce Starter Design System
   =========================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    /* Surfaces */
    --ec-bg:            #F8FAFC;
    --ec-surface:       #FFFFFF;
    --ec-surface-2:     #F1F5F9;
    --ec-surface-dark:  #0F172A;

    /* Brand */
    --ec-primary:       #7C3AED;
    --ec-primary-hover: #6D28D9;
    --ec-primary-muted: #EDE9FE;
    --ec-accent:        #F97316;
    --ec-accent-hover:  #EA6C08;
    --ec-accent-muted:  #FFF7ED;
    --ec-success:       #16A34A;
    --ec-success-muted: #DCFCE7;
    --ec-danger:        #DC2626;
    --ec-danger-muted:  #FEE2E2;
    --ec-gold:          #EAB308;
    --ec-gold-muted:    #FEF9C3;

    /* Text */
    --ec-text:          #0F172A;
    --ec-text-muted:    #64748B;
    --ec-text-light:    #94A3B8;

    /* Borders */
    --ec-border:        #E2E8F0;
    --ec-border-strong: #CBD5E1;

    /* Radius */
    --ec-radius-sm:     8px;
    --ec-radius:        12px;
    --ec-radius-lg:     18px;
    --ec-radius-pill:   100px;

    /* Fonts */
    --ec-font-heading:  'Sora', sans-serif;
    --ec-font-body:     'Nunito', sans-serif;

    /* Shadows */
    --ec-shadow-xs:     0 1px 2px rgba(15,23,42,0.05);
    --ec-shadow-sm:     0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.04);
    --ec-shadow:        0 4px 12px rgba(15,23,42,0.08), 0 16px 40px rgba(15,23,42,0.06);
    --ec-shadow-lg:     0 8px 24px rgba(15,23,42,0.12), 0 32px 64px rgba(15,23,42,0.08);
    --ec-shadow-product:0 2px 8px rgba(15,23,42,0.08), 0 8px 32px rgba(15,23,42,0.08);

    /* Transition */
    --ec-transition:    all 0.2s ease;
    --ec-transition-slow: all 0.3s ease;
}

body {
    margin: 0;
    font-family: var(--ec-font-body);
    color: var(--ec-text);
    background-color: var(--ec-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

/* ── Card ─────────────────────── */
.ec-card {
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius);
    box-shadow: var(--ec-shadow-sm);
    padding: 1.75rem;
    transition: var(--ec-transition);
}

.ec-card:hover { box-shadow: var(--ec-shadow); }

/* ── Typography ───────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--ec-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--ec-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { font-family: var(--ec-font-body); color: var(--ec-text-muted); margin: 0; line-height: 1.6; }

/* ── Buttons ──────────────────── */
.ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 1.35rem;
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--ec-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--ec-transition);
    white-space: nowrap;
    user-select: none;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.ec-btn:focus-visible { outline: 2px solid var(--ec-primary); outline-offset: 2px; }

.ec-btn-primary { background-color: var(--ec-primary); color: #fff; border-color: var(--ec-primary); }
.ec-btn-primary:hover { background-color: var(--ec-primary-hover); border-color: var(--ec-primary-hover); box-shadow: 0 4px 16px rgba(124,58,237,0.35); transform: translateY(-1px); }
.ec-btn-primary:active { transform: translateY(0); box-shadow: none; }

.ec-btn-accent { background-color: var(--ec-accent); color: #fff; border-color: var(--ec-accent); }
.ec-btn-accent:hover { background-color: var(--ec-accent-hover); border-color: var(--ec-accent-hover); box-shadow: 0 4px 16px rgba(249,115,22,0.35); transform: translateY(-1px); }

.ec-btn-outline { background-color: var(--ec-surface); color: var(--ec-text); border-color: var(--ec-border-strong); }
.ec-btn-outline:hover { background-color: var(--ec-surface-2); border-color: var(--ec-primary); color: var(--ec-primary); transform: translateY(-1px); }

.ec-btn-ghost { background-color: transparent; color: var(--ec-text-muted); border-color: transparent; }
.ec-btn-ghost:hover { background-color: var(--ec-surface-2); color: var(--ec-text); }

.ec-btn-danger { background-color: var(--ec-danger); color: #fff; border-color: var(--ec-danger); }
.ec-btn-danger:hover { background-color: #B91C1C; box-shadow: 0 4px 16px rgba(220,38,38,0.35); transform: translateY(-1px); }

.ec-btn-sm   { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.ec-btn-lg   { padding: 0.85rem 1.85rem; font-size: 1rem; }
.ec-btn-block { width: 100%; }
.ec-btn-icon { width: 38px; height: 38px; padding: 0; border-radius: var(--ec-radius-sm); }

/* ── Form Controls ────────────── */
.ec-input {
    width: 100%;
    padding: 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    outline: none;
    transition: var(--ec-transition);
}

.ec-input::placeholder { color: var(--ec-text-light); font-weight: 500; }

.ec-input:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

.ec-label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--ec-font-heading);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--ec-text);
    letter-spacing: -0.01em;
}

.ec-select {
    width: 100%;
    padding: 0.65rem 2rem 0.65rem 1rem;
    border: 2px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text);
    background-color: var(--ec-surface);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--ec-transition);
}

.ec-select:focus { border-color: var(--ec-primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ── Badges ───────────────────── */
.ec-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--ec-radius-pill);
    font-family: var(--ec-font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ec-badge-sale    { background-color: var(--ec-accent);  color: #fff; }
.ec-badge-new     { background-color: var(--ec-primary); color: #fff; }
.ec-badge-success { background-color: var(--ec-success-muted); color: #14532D; }
.ec-badge-danger  { background-color: var(--ec-danger-muted);  color: #7F1D1D; }
.ec-badge-default { background-color: var(--ec-surface-2); color: var(--ec-text-muted); border: 1px solid var(--ec-border); }
.ec-badge-pending { background-color: var(--ec-gold-muted); color: #713F12; }

/* ── Star Rating ──────────────── */
.ec-stars {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    color: var(--ec-gold);
    font-size: 0.85rem;
}

.ec-stars-count {
    font-family: var(--ec-font-body);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ec-text-muted);
    margin-left: 0.3rem;
}

/* ── Price display ────────────── */
.ec-price {
    font-family: var(--ec-font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ec-text);
    letter-spacing: -0.02em;
}

.ec-price-original {
    font-family: var(--ec-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ec-text-light);
    text-decoration: line-through;
}

.ec-price-sale { color: var(--ec-accent); }

/* ── Toggle ───────────────────── */
.ec-toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.ec-toggle input { opacity: 0; width: 0; height: 0; }
.ec-toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--ec-border-strong); border-radius: 24px; transition: var(--ec-transition); }
.ec-toggle-slider::before { position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: var(--ec-transition); box-shadow: var(--ec-shadow-xs); }
.ec-toggle input:checked + .ec-toggle-slider { background-color: var(--ec-primary); }
.ec-toggle input:checked + .ec-toggle-slider::before { transform: translateX(20px); }

/* ── Divider ──────────────────── */
.ec-divider { border: none; border-top: 1px solid var(--ec-border); margin: 0; }

/* ── Logo ─────────────────────── */
.ec-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--ec-font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--ec-text);
    letter-spacing: -0.03em;
}

.ec-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Trust badges ─────────────── */
.ec-trust-strip {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.ec-trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-text-muted);
}

.ec-trust-item svg { color: var(--ec-primary); flex-shrink: 0; }

/* ── Utilities ────────────────── */
.text-primary { color: var(--ec-primary) !important; }
.text-accent  { color: var(--ec-accent)  !important; }
.text-success { color: var(--ec-success) !important; }
.text-danger  { color: var(--ec-danger)  !important; }
.text-muted   { color: var(--ec-text-muted) !important; }
.text-light   { color: var(--ec-text-light) !important; }

.ec-link-sm {
    font-family: var(--ec-font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ec-primary);
    text-decoration: none;
    transition: var(--ec-transition);
}

.ec-link-sm:hover {
    color: var(--ec-primary-hover);
}



/* --- COMPONENT STYLES --- */
.ec-modal-backdrop {
    background-color: rgba(15,23,42,0.45);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    border-radius: var(--ec-radius);
    max-width: 700px;
    margin: 0 auto;
}

.ec-modal {
    width: 100%;
    max-width: 480px;
    padding: 0 !important;
    overflow: hidden;
}

.ec-modal-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.5rem;
    border-bottom: 1px solid var(--ec-border);
}

.ec-modal-title-row {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.ec-modal-ico {
    width: 40px;
    height: 40px;
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ec-modal-head h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.15rem;
}

.ec-modal-meta {
    font-size: 0.8rem;
    font-weight: 600;
}

.ec-modal-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.ec-cart-summary {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background-color: var(--ec-surface-2);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    padding: 1.25rem;
}

.ec-cart-prod-row {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.ec-cart-prod-thumb {
    width: 42px;
    height: 42px;
    background-color: var(--ec-surface);
    border: 1px solid var(--ec-border);
    border-radius: var(--ec-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}

.ec-cart-prod-info {
    flex: 1;
    min-width: 0;
}

.ec-cart-prod-info strong {
    font-family: var(--ec-font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--ec-text);
}

.ec-cart-totals {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.ec-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    font-weight: 600;
}

.ec-modal-trust-alert {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background-color: var(--ec-accent-muted);
    color: #9A3412;
    border: 1px solid rgba(249,115,22,0.15);
    border-radius: var(--ec-radius-sm);
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    line-height: 1.4;
}

.ec-modal-foot {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--ec-border);
    background-color: var(--ec-surface-2);
}

Footers