Duotone UI Kit - Free HTML/CSS UI Kit

A bold, high-contrast UI kit featuring heavy geometric typography, thick solid borders, sharp offset drop shadows, and a strict Vibrant Orange & Deep Indigo color palette.

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

Deep Indigo #312E81
Vibrant Orange #EA580C
Light Background #F8FAFC
Stark White #FFFFFF
Slate Text #0F172A

Typography


Navbars

Bold Navbar

HTML
<nav class="dt-navbar">
    <div class="dt-nav-container dt-surface">
        <div class="dt-logo">
            <div class="dt-logo-icon">
                <svg viewBox="0 0 24 24" width="22" height="22" stroke="currentColor" stroke-width="3" fill="none"><path d="M12 2L2 7l10 5 10-5-10-5zM2 17l10 5 10-5M2 12l10 5 10-5"></path></svg>
            </div>
            <span>Duo<span>tone</span></span>
        </div>
        
        <div class="dt-nav-links">
            <a href="#" class="active">Features</a>
            <a href="#">Solutions</a>
            <a href="#">Resources</a>
            <a href="#">Pricing</a>
        </div>
        
        <div class="dt-nav-actions">
            <a href="#" class="dt-btn dt-btn-ghost">Log In</a>
            <a href="#" class="dt-btn dt-btn-accent">Get Started</a>
        </div>
        
        <button class="dt-mobile-toggle dt-btn dt-btn-circle dt-btn-outline">
            <svg viewBox="0 0 24 24" width="24" height="24" stroke="currentColor" stroke-width="2.5" fill="none"><line x1="3" y1="12" x2="21" y2="12"></line><line x1="3" y1="6" x2="21" y2="6"></line><line x1="3" y1="18" x2="21" y2="18"></line></svg>
        </button>
    </div>
</nav>
CSS (Component Only)
/* Component: Bold Navbar */
/* NOTE: This component requires base.css to be included in your page. */

.dt-navbar {
    width: 100%;
    position: relative;
    z-index: 100;
    padding: 1rem 1.5rem;
}

.dt-nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dt-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--dt-font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--dt-text);
}

.dt-logo-icon {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--dt-radius);
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 2px 2px 0px var(--dt-border);
}

.dt-logo span span {
    color: var(--dt-orange);
}

.dt-nav-links {
    display: flex;
    gap: 0.75rem;
}

.dt-nav-links a {
    text-decoration: none;
    color: var(--dt-text);
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: var(--dt-radius);
    border: var(--dt-border-width) solid transparent;
    transition: all 0.1s ease;
}

.dt-nav-links a:hover {
    background-color: #F1F5F9;
    border-color: var(--dt-border);
}

.dt-nav-links a.active {
    background-color: #FFFFFF;
    border-color: var(--dt-border);
    box-shadow: 2px 2px 0px var(--dt-border);
}

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

.dt-mobile-toggle {
    display: none;
}

@media (max-width: 850px) {
    .dt-nav-links, .dt-nav-actions {
        display: none;
    }
    .dt-mobile-toggle {
        display: flex;
    }
}
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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-navbar {
    width: 100%;
    position: relative;
    z-index: 100;
    padding: 1rem 1.5rem;
}

.dt-nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dt-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--dt-font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--dt-text);
}

.dt-logo-icon {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--dt-radius);
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 2px 2px 0px var(--dt-border);
}

.dt-logo span span {
    color: var(--dt-orange);
}

.dt-nav-links {
    display: flex;
    gap: 0.75rem;
}

.dt-nav-links a {
    text-decoration: none;
    color: var(--dt-text);
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: var(--dt-radius);
    border: var(--dt-border-width) solid transparent;
    transition: all 0.1s ease;
}

.dt-nav-links a:hover {
    background-color: #F1F5F9;
    border-color: var(--dt-border);
}

.dt-nav-links a.active {
    background-color: #FFFFFF;
    border-color: var(--dt-border);
    box-shadow: 2px 2px 0px var(--dt-border);
}

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

.dt-mobile-toggle {
    display: none;
}

@media (max-width: 850px) {
    .dt-nav-links, .dt-nav-actions {
        display: none;
    }
    .dt-mobile-toggle {
        display: flex;
    }
}

Heavy Sidebar

HTML
<aside class="dt-sidebar dt-surface">
    <div class="dt-sidebar-header">
        <div class="dt-logo">
            <div class="dt-logo-icon">
                <svg viewBox="0 0 24 24" width="22" height="22" stroke="currentColor" stroke-width="3" fill="none"><path d="M12 2L2 7l10 5 10-5-10-5zM2 17l10 5 10-5M2 12l10 5 10-5"></path></svg>
            </div>
            <span>Duo<span>tone</span></span>
        </div>
    </div>
    
    <nav class="dt-sidebar-nav">
        <ul>
            <li><a href="#" class="active"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="3" width="7" height="7"></rect><rect x="14" y="3" width="7" height="7"></rect><rect x="14" y="14" width="7" height="7"></rect><rect x="3" y="14" width="7" height="7"></rect></svg> Dashboard</a></li>
            <li><a href="#"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"></path><circle cx="9" cy="7" r="4"></circle><path d="M23 21v-2a4 4 0 0 0-3-3.87"></path><path d="M16 3.13a4 4 0 0 1 0 7.75"></path></svg> Team</a></li>
            <li><a href="#"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><path d="M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z"></path></svg> Projects</a></li>
            <li><a href="#"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="4" width="18" height="18" rx="2" ry="2"></rect><line x1="16" y1="2" x2="16" y2="6"></line><line x1="8" y1="2" x2="8" y2="6"></line><line x1="3" y1="10" x2="21" y2="10"></line></svg> Calendar</a></li>
            <li><a href="#"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="22 12 16 12 14 15 10 15 8 12 2 12"></polyline><path d="M5.45 5.11L2 12v6a2 2 0 0 0 2 2h16a2 2 0 0 0 2-2v-6l-3.45-6.89A2 2 0 0 0 16.76 4H7.24a2 2 0 0 0-1.79 1.11z"></path></svg> Inbox</a></li>
        </ul>
        <div class="dt-nav-divider"></div>
        <ul>
            <li><a href="#"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="3"></circle><path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z"></path></svg> Settings</a></li>
        </ul>
    </nav>
    
    <div class="dt-sidebar-footer">
        <div class="dt-user-profile">
            <div class="dt-avatar">
                <img src="https://i.pravatar.cc/100?img=32" alt="User">
            </div>
            <div class="dt-user-info">
                <strong>Sarah Jenkins</strong>
                <span class="dt-badge bg-orange text-white">Pro Member</span>
            </div>
        </div>
    </div>
</aside>
CSS (Component Only)
/* Component: Heavy Sidebar */
/* NOTE: This component requires base.css to be included in your page. */

.dt-sidebar {
    width: 280px;
    height: 620px; /* Fixed for library preview */
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
}

.dt-sidebar-header {
    margin-bottom: 2rem;
}

.dt-sidebar-nav {
    flex: 1;
}

.dt-sidebar-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.dt-sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--dt-radius);
    color: var(--dt-text);
    text-decoration: none;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    border: var(--dt-border-width) solid transparent;
    transition: all 0.1s ease;
}

.dt-sidebar-nav a svg {
    color: var(--dt-text);
}

.dt-sidebar-nav a:hover {
    background-color: #F1F5F9;
    border-color: var(--dt-border);
}

.dt-sidebar-nav a.active {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border-color: var(--dt-border);
    box-shadow: 3px 3px 0px var(--dt-border);
}

.dt-sidebar-nav a.active svg {
    color: #FFFFFF;
}

.dt-nav-divider {
    height: 2px;
    background-color: var(--dt-border);
    margin: 1.25rem 0;
}

.dt-sidebar-footer {
    margin-top: auto;
}

.dt-user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    background-color: #FFFFFF;
    box-shadow: 3px 3px 0px var(--dt-border);
}

.dt-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: var(--dt-border-width) solid var(--dt-border);
    overflow: hidden;
    flex-shrink: 0;
}

.dt-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dt-user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
}

.dt-user-info strong {
    font-size: 0.9rem;
    color: var(--dt-text);
    font-weight: 700;
}

.dt-badge {
    padding: 0.125rem 0.5rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    border: 1px solid var(--dt-border);
    border-radius: var(--dt-radius);
}
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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-sidebar {
    width: 280px;
    height: 620px; /* Fixed for library preview */
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
}

.dt-sidebar-header {
    margin-bottom: 2rem;
}

.dt-sidebar-nav {
    flex: 1;
}

.dt-sidebar-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.dt-sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--dt-radius);
    color: var(--dt-text);
    text-decoration: none;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    border: var(--dt-border-width) solid transparent;
    transition: all 0.1s ease;
}

.dt-sidebar-nav a svg {
    color: var(--dt-text);
}

.dt-sidebar-nav a:hover {
    background-color: #F1F5F9;
    border-color: var(--dt-border);
}

.dt-sidebar-nav a.active {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border-color: var(--dt-border);
    box-shadow: 3px 3px 0px var(--dt-border);
}

.dt-sidebar-nav a.active svg {
    color: #FFFFFF;
}

.dt-nav-divider {
    height: 2px;
    background-color: var(--dt-border);
    margin: 1.25rem 0;
}

.dt-sidebar-footer {
    margin-top: auto;
}

.dt-user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    background-color: #FFFFFF;
    box-shadow: 3px 3px 0px var(--dt-border);
}

.dt-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: var(--dt-border-width) solid var(--dt-border);
    overflow: hidden;
    flex-shrink: 0;
}

.dt-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dt-user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
}

.dt-user-info strong {
    font-size: 0.9rem;
    color: var(--dt-text);
    font-weight: 700;
}

.dt-badge {
    padding: 0.125rem 0.5rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    border: 1px solid var(--dt-border);
    border-radius: var(--dt-radius);
}

Hero Sections

Brutalist Centered Hero

HTML
<section class="dt-hero-centered">
    <div class="dt-hero-container">
        <div class="dt-badge bg-orange text-white">Version 3.0 Launch</div>
        
        <h1 class="dt-hero-title">
            Design Boldly. <span class="dt-highlight bg-indigo text-white">No Apologies.</span>
        </h1>
        
        <p class="dt-hero-subtitle">
            A high-contrast, brutalist design system engineered to dominate. Perfect for websites, SaaS dashboards, and creative portfolios looking for massive attitude.
        </p>
        
        <div class="dt-hero-actions">
            <button class="dt-btn dt-btn-accent">Get Started Free</button>
            <button class="dt-btn dt-btn-outline">View Docs</button>
        </div>
        
        <div class="dt-hero-preview dt-surface">
            <div class="dt-preview-header">
                <div class="dt-window-dots">
                    <span></span>
                    <span></span>
                    <span></span>
                </div>
                <div class="dt-window-title">cosmic_dashboard.html</div>
            </div>
            <div class="dt-preview-body">
                <div class="dt-skeleton-grid">
                    <div class="dt-skeleton-card dt-surface">
                        <div class="dt-skeleton-line dt-line-short bg-orange"></div>
                        <div class="dt-skeleton-line dt-line-medium"></div>
                    </div>
                    <div class="dt-skeleton-card dt-surface">
                        <div class="dt-skeleton-line dt-line-short bg-indigo"></div>
                        <div class="dt-skeleton-line dt-line-medium"></div>
                    </div>
                    <div class="dt-skeleton-card dt-surface">
                        <div class="dt-skeleton-line dt-line-short"></div>
                        <div class="dt-skeleton-line dt-line-medium"></div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</section>
CSS (Component Only)
/* Component: Brutalist Centered Hero */
/* NOTE: This component requires base.css to be included in your page. */

.dt-hero-centered {
    position: relative;
    padding: 5rem 1.5rem;
    overflow: hidden;
}

.dt-hero-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.dt-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 1rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 2px 2px 0px var(--dt-border);
    border-radius: var(--dt-radius);
    margin-bottom: 2rem;
}

.dt-hero-title {
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    color: var(--dt-text);
}

.dt-highlight {
    display: inline-block;
    padding: 0.1rem 0.75rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    transform: rotate(-1deg);
    margin-left: 0.25rem;
}

.dt-hero-subtitle {
    font-size: 1.2rem;
    max-width: 650px;
    margin-bottom: 2.5rem;
    color: var(--dt-text-muted);
}

.dt-hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

/* Brutalist Window Preview */
.dt-hero-preview {
    width: 100%;
    max-width: 800px;
    padding: 0;
    overflow: hidden;
    box-shadow: var(--dt-shadow-lg);
}

.dt-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    background-color: #F1F5F9;
}

.dt-window-dots {
    display: flex;
    gap: 0.4rem;
}

.dt-window-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 1.5px solid var(--dt-border);
    background-color: #CBD5E1;
}

.dt-window-title {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--dt-text-muted);
}

.dt-preview-body {
    padding: 2rem;
    background-color: var(--dt-bg);
}

.dt-skeleton-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.dt-skeleton-card {
    padding: 1.25rem;
    background-color: #FFFFFF;
    box-shadow: var(--dt-shadow-sm);
}

.dt-skeleton-line {
    height: 12px;
    background-color: #E2E8F0;
    border: 1.5px solid var(--dt-border);
    border-radius: var(--dt-radius);
    margin-bottom: 0.75rem;
}

.dt-skeleton-line:last-child {
    margin-bottom: 0;
}

.dt-line-short {
    width: 40%;
}

.dt-line-medium {
    width: 75%;
}

@media (max-width: 768px) {
    .dt-hero-title {
        font-size: 2.75rem;
    }
    .dt-highlight {
        display: block;
        width: fit-content;
        margin: 0.75rem auto 0;
    }
    .dt-hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
    }
    .dt-skeleton-grid {
        grid-template-columns: 1fr;
    }
}
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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-hero-centered {
    position: relative;
    padding: 5rem 1.5rem;
    overflow: hidden;
}

.dt-hero-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.dt-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 1rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 2px 2px 0px var(--dt-border);
    border-radius: var(--dt-radius);
    margin-bottom: 2rem;
}

.dt-hero-title {
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    color: var(--dt-text);
}

.dt-highlight {
    display: inline-block;
    padding: 0.1rem 0.75rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    transform: rotate(-1deg);
    margin-left: 0.25rem;
}

.dt-hero-subtitle {
    font-size: 1.2rem;
    max-width: 650px;
    margin-bottom: 2.5rem;
    color: var(--dt-text-muted);
}

.dt-hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

/* Brutalist Window Preview */
.dt-hero-preview {
    width: 100%;
    max-width: 800px;
    padding: 0;
    overflow: hidden;
    box-shadow: var(--dt-shadow-lg);
}

.dt-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    background-color: #F1F5F9;
}

.dt-window-dots {
    display: flex;
    gap: 0.4rem;
}

.dt-window-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 1.5px solid var(--dt-border);
    background-color: #CBD5E1;
}

.dt-window-title {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--dt-text-muted);
}

.dt-preview-body {
    padding: 2rem;
    background-color: var(--dt-bg);
}

.dt-skeleton-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.dt-skeleton-card {
    padding: 1.25rem;
    background-color: #FFFFFF;
    box-shadow: var(--dt-shadow-sm);
}

.dt-skeleton-line {
    height: 12px;
    background-color: #E2E8F0;
    border: 1.5px solid var(--dt-border);
    border-radius: var(--dt-radius);
    margin-bottom: 0.75rem;
}

.dt-skeleton-line:last-child {
    margin-bottom: 0;
}

.dt-line-short {
    width: 40%;
}

.dt-line-medium {
    width: 75%;
}

@media (max-width: 768px) {
    .dt-hero-title {
        font-size: 2.75rem;
    }
    .dt-highlight {
        display: block;
        width: fit-content;
        margin: 0.75rem auto 0;
    }
    .dt-hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
    }
    .dt-skeleton-grid {
        grid-template-columns: 1fr;
    }
}

Heavy Split Hero

HTML
<section class="dt-hero-split">
    <div class="dt-hero-content">
        <h2 class="dt-hero-title">
            Raw Contrast. <span class="dt-highlight bg-orange text-white">Pure Speed.</span>
        </h2>
        <p class="dt-hero-subtitle">
            A radical departure from boring, soft design patterns. This kit pairs absolute clarity with eye-popping layouts to give your UI the edge it deserves.
        </p>
        <div class="dt-hero-actions">
            <a href="#" class="dt-btn dt-btn-primary">Explore Kit</a>
            <a href="#" class="dt-btn dt-btn-outline">Watch Demo</a>
        </div>
    </div>
    
    <div class="dt-hero-visual">
        <div class="dt-visual-container">
            <div class="dt-visual-card card-1 dt-surface">
                <div class="dt-visual-badge bg-indigo text-white">3.4s</div>
                <div class="dt-visual-label">Time to Interactive</div>
            </div>
            
            <div class="dt-visual-card card-2 dt-surface">
                <div class="dt-visual-badge bg-orange text-white">+87%</div>
                <div class="dt-visual-label">Performance Boost</div>
            </div>
        </div>
    </div>
</section>
CSS (Component Only)
/* Component: Heavy Split Hero */
/* NOTE: This component requires base.css to be included in your page. */

.dt-hero-split {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.dt-hero-title {
    font-size: 3.75rem;
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.dt-highlight {
    display: inline-block;
    padding: 0.1rem 0.5rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    transform: rotate(1deg);
}

.dt-hero-subtitle {
    font-size: 1.15rem;
    color: var(--dt-text-muted);
    margin-bottom: 2.5rem;
    max-width: 540px;
}

.dt-hero-actions {
    display: flex;
    gap: 1rem;
}

/* Brutalist Visual Stack */
.dt-hero-visual {
    position: relative;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.dt-visual-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.dt-visual-card {
    position: absolute;
    width: 250px;
    padding: 1.5rem;
    background-color: #FFFFFF;
    transition: transform 0.2s ease;
}

.card-1 {
    top: 15%;
    left: 5%;
    transform: rotate(-3deg);
    box-shadow: var(--dt-shadow-lg);
}

.card-2 {
    bottom: 15%;
    right: 5%;
    transform: rotate(4deg);
    box-shadow: var(--dt-shadow-lg);
}

.dt-visual-card:hover {
    transform: scale(1.05) rotate(0deg);
    z-index: 10;
}

.dt-visual-badge {
    display: inline-block;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1.75rem;
    padding: 0.25rem 0.75rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow-sm);
    border-radius: var(--dt-radius);
    margin-bottom: 1rem;
}

.dt-visual-label {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

@media (max-width: 992px) {
    .dt-hero-split {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
        padding: 3rem 1.5rem;
    }
    .dt-hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    .dt-hero-actions {
        justify-content: center;
    }
    .dt-hero-visual {
        height: 320px;
    }
    .dt-visual-card {
        position: relative;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        transform: none !important;
        margin: 0 0.5rem;
        width: 100%;
        max-width: 220px;
        box-shadow: var(--dt-shadow) !important;
    }
    .dt-visual-container {
        display: flex;
        justify-content: center;
        gap: 1rem;
        height: auto;
    }
}
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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-hero-split {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.dt-hero-title {
    font-size: 3.75rem;
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.dt-highlight {
    display: inline-block;
    padding: 0.1rem 0.5rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    transform: rotate(1deg);
}

.dt-hero-subtitle {
    font-size: 1.15rem;
    color: var(--dt-text-muted);
    margin-bottom: 2.5rem;
    max-width: 540px;
}

.dt-hero-actions {
    display: flex;
    gap: 1rem;
}

/* Brutalist Visual Stack */
.dt-hero-visual {
    position: relative;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.dt-visual-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.dt-visual-card {
    position: absolute;
    width: 250px;
    padding: 1.5rem;
    background-color: #FFFFFF;
    transition: transform 0.2s ease;
}

.card-1 {
    top: 15%;
    left: 5%;
    transform: rotate(-3deg);
    box-shadow: var(--dt-shadow-lg);
}

.card-2 {
    bottom: 15%;
    right: 5%;
    transform: rotate(4deg);
    box-shadow: var(--dt-shadow-lg);
}

.dt-visual-card:hover {
    transform: scale(1.05) rotate(0deg);
    z-index: 10;
}

.dt-visual-badge {
    display: inline-block;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1.75rem;
    padding: 0.25rem 0.75rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow-sm);
    border-radius: var(--dt-radius);
    margin-bottom: 1rem;
}

.dt-visual-label {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

@media (max-width: 992px) {
    .dt-hero-split {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
        padding: 3rem 1.5rem;
    }
    .dt-hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    .dt-hero-actions {
        justify-content: center;
    }
    .dt-hero-visual {
        height: 320px;
    }
    .dt-visual-card {
        position: relative;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        transform: none !important;
        margin: 0 0.5rem;
        width: 100%;
        max-width: 220px;
        box-shadow: var(--dt-shadow) !important;
    }
    .dt-visual-container {
        display: flex;
        justify-content: center;
        gap: 1rem;
        height: auto;
    }
}

Buttons

Brutalist Buttons

HTML
<div class="dt-btn-group">
    <button class="dt-btn dt-btn-primary">Primary Action</button>
    <button class="dt-btn dt-btn-accent">
        <svg viewBox="0 0 24 24" width="18" height="18" stroke="currentColor" stroke-width="2.5" fill="none"><path d="M5 12h14"></path><path d="M12 5l7 7-7 7"></path></svg>
        Vibrant Accent
    </button>
    <button class="dt-btn dt-btn-primary dt-btn-loading" disabled>
        Processing...
    </button>
</div>
CSS (Component Only)
/* Component: Brutalist Buttons */
/* NOTE: This component requires base.css to be included in your page. */

.dt-btn-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.dt-btn-loading {
    opacity: 0.8;
    cursor: not-allowed;
    position: relative;
    padding-left: 3rem;
}

.dt-btn-loading::before {
    content: '';
    position: absolute;
    left: 1.25rem;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: white;
    border-radius: 50%;
    animation: dt-spin 1s linear infinite;
}

@keyframes dt-spin {
    to { transform: rotate(360deg); }
}
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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-btn-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.dt-btn-loading {
    opacity: 0.8;
    cursor: not-allowed;
    position: relative;
    padding-left: 3rem;
}

.dt-btn-loading::before {
    content: '';
    position: absolute;
    left: 1.25rem;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: white;
    border-radius: 50%;
    animation: dt-spin 1s linear infinite;
}

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

Chunky Outline Buttons

HTML
<div class="dt-btn-group">
    <button class="dt-btn dt-btn-outline">Outline Action</button>
    <button class="dt-btn dt-btn-outline">
        <svg viewBox="0 0 24 24" width="18" height="18" stroke="currentColor" stroke-width="2.5" fill="none"><rect x="3" y="3" width="18" height="18" rx="2" ry="2"></rect><line x1="12" y1="8" x2="12" y2="16"></line><line x1="8" y1="12" x2="16" y2="12"></line></svg>
        Add Item
    </button>
</div>
CSS (Component Only)
/* Component: Chunky Outline Buttons */
/* NOTE: This component requires base.css to be included in your page. */

.dt-btn-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-btn-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
}

Forms

High-Contrast Login Form

HTML
<div class="dt-login-card dt-surface">
    <div class="dt-login-header">
        <h3>Welcome Back</h3>
        <p>Access your high-contrast console</p>
    </div>
    
    <form class="dt-form">
        <div class="dt-form-group">
            <label for="email" class="dt-label">Email Address</label>
            <input type="email" id="email" placeholder="[email protected]" class="dt-input">
        </div>
        
        <div class="dt-form-group">
            <div class="dt-label-flex">
                <label for="password" class="dt-label">Password</label>
                <a href="#" class="dt-forgot-link text-indigo">Forgot password?</a>
            </div>
            <input type="password" id="password" placeholder="••••••••" class="dt-input">
        </div>
        
        <div class="dt-form-group dt-checkbox-group">
            <div class="dt-checkbox-wrapper">
                <input type="checkbox" id="remember">
                <div class="dt-checkbox-custom bg-orange">
                    <svg viewBox="0 0 24 24" width="14" height="14" stroke="white" stroke-width="3" fill="none" class="dt-check-icon"><polyline points="20 6 9 17 4 12"></polyline></svg>
                </div>
            </div>
            <label for="remember">Remember console session</label>
        </div>
        
        <button type="submit" class="dt-btn dt-btn-primary dt-btn-block">Authenticate</button>
    </form>
    
    <div class="dt-login-footer">
        <p>New to console? <a href="#" class="text-orange">Create account</a></p>
    </div>
</div>
CSS (Component Only)
/* Component: High-Contrast Login Form */
/* NOTE: This component requires base.css to be included in your page. */

.dt-login-card {
    max-width: 420px;
    margin: 0 auto;
    padding: 2.5rem;
    box-shadow: var(--dt-shadow-lg);
}

.dt-login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.dt-login-header h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.dt-form-group {
    margin-bottom: 1.5rem;
}

.dt-label-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.dt-label-flex .dt-label {
    margin-bottom: 0;
}

.dt-forgot-link {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
}

.dt-forgot-link:hover {
    text-decoration: underline;
}

.dt-checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    margin-bottom: 2rem;
}

.dt-checkbox-wrapper {
    position: relative;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.dt-checkbox-wrapper input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 100%;
    width: 100%;
    z-index: 2;
    margin: 0;
}

.dt-checkbox-custom {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #FFFFFF;
    transition: all 0.1s ease;
}

.dt-check-icon {
    opacity: 0;
    transform: scale(0);
    transition: all 0.1s ease;
}

.dt-checkbox-wrapper input[type="checkbox"]:checked ~ .dt-checkbox-custom {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: 2px 2px 0px var(--dt-border);
}

.dt-checkbox-wrapper input[type="checkbox"]:checked ~ .dt-checkbox-custom .dt-check-icon {
    opacity: 1;
    transform: scale(1);
}

.dt-checkbox-group label {
    margin-bottom: 0;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--dt-text-muted);
}

.dt-login-footer {
    margin-top: 2rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--dt-text-muted);
}

.dt-login-footer a {
    text-decoration: none;
    font-family: var(--dt-font-heading);
    font-weight: 700;
}

.dt-login-footer a:hover {
    text-decoration: underline;
}
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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-login-card {
    max-width: 420px;
    margin: 0 auto;
    padding: 2.5rem;
    box-shadow: var(--dt-shadow-lg);
}

.dt-login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.dt-login-header h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.dt-form-group {
    margin-bottom: 1.5rem;
}

.dt-label-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.dt-label-flex .dt-label {
    margin-bottom: 0;
}

.dt-forgot-link {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
}

.dt-forgot-link:hover {
    text-decoration: underline;
}

.dt-checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    margin-bottom: 2rem;
}

.dt-checkbox-wrapper {
    position: relative;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.dt-checkbox-wrapper input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 100%;
    width: 100%;
    z-index: 2;
    margin: 0;
}

.dt-checkbox-custom {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #FFFFFF;
    transition: all 0.1s ease;
}

.dt-check-icon {
    opacity: 0;
    transform: scale(0);
    transition: all 0.1s ease;
}

.dt-checkbox-wrapper input[type="checkbox"]:checked ~ .dt-checkbox-custom {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: 2px 2px 0px var(--dt-border);
}

.dt-checkbox-wrapper input[type="checkbox"]:checked ~ .dt-checkbox-custom .dt-check-icon {
    opacity: 1;
    transform: scale(1);
}

.dt-checkbox-group label {
    margin-bottom: 0;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--dt-text-muted);
}

.dt-login-footer {
    margin-top: 2rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--dt-text-muted);
}

.dt-login-footer a {
    text-decoration: none;
    font-family: var(--dt-font-heading);
    font-weight: 700;
}

.dt-login-footer a:hover {
    text-decoration: underline;
}

Chunky Settings Form

HTML
<div class="dt-settings-panel dt-surface">
    <div class="dt-panel-header">
        <h3>Console Preferences</h3>
        <p>Manage your high-contrast account configurations</p>
    </div>
    
    <div class="dt-settings-body">
        <div class="dt-avatar-upload">
            <div class="dt-avatar-wrapper">
                <img src="https://i.pravatar.cc/150?img=32" alt="Profile" class="dt-avatar-lg">
            </div>
            <div class="dt-upload-actions">
                <button class="dt-btn dt-btn-outline">Upload Avatar</button>
                <button class="dt-btn dt-btn-ghost">Delete</button>
            </div>
        </div>
        
        <form class="dt-form-grid">
            <div class="dt-form-group">
                <label class="dt-label">First Name</label>
                <input type="text" class="dt-input" value="Sarah">
            </div>
            
            <div class="dt-form-group">
                <label class="dt-label">Last Name</label>
                <input type="text" class="dt-input" value="Jenkins">
            </div>
            
            <div class="dt-form-group full-width">
                <label class="dt-label">Linked Email Address</label>
                <input type="email" class="dt-input" value="[email protected]">
            </div>
            
            <div class="dt-form-group full-width">
                <label class="dt-label">Bio Description</label>
                <textarea class="dt-input dt-textarea" rows="4">Brutalist interface engineer. Optimizing high-contrast responsive layouts.</textarea>
            </div>
            
            <div class="dt-form-group full-width dt-toggle-group">
                <div class="dt-toggle-info">
                    <label class="dt-label">Hardware Acceleration</label>
                    <p>Enable extreme contrast graphic rendering</p>
                </div>
                <label class="dt-toggle">
                    <input type="checkbox" checked>
                    <span class="dt-slider bg-orange"></span>
                </label>
            </div>
        </form>
    </div>
    
    <div class="dt-panel-footer">
        <button class="dt-btn dt-btn-ghost">Reset changes</button>
        <button class="dt-btn dt-btn-primary">Save Config</button>
    </div>
</div>
CSS (Component Only)
/* Component: Chunky Settings Form */
/* NOTE: This component requires base.css to be included in your page. */

.dt-settings-panel {
    max-width: 750px;
    margin: 0 auto;
    padding: 0;
    box-shadow: var(--dt-shadow-lg);
    overflow: hidden;
}

.dt-panel-header {
    padding: 2rem;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    background-color: #F8FAFC;
}

.dt-panel-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.dt-settings-body {
    padding: 2rem;
}

.dt-avatar-upload {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.dt-avatar-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 3px 3px 0px var(--dt-border);
    overflow: hidden;
    flex-shrink: 0;
}

.dt-avatar-lg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dt-upload-actions {
    display: flex;
    gap: 0.75rem;
}

.dt-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.dt-form-group.full-width {
    grid-column: 1 / -1;
}

.dt-textarea {
    resize: vertical;
    min-height: 100px;
}

.dt-toggle-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    margin-top: 1rem;
    border-top: var(--dt-border-width) solid var(--dt-border);
}

.dt-toggle-info .dt-label {
    margin-bottom: 0.125rem;
}

.dt-toggle-info p {
    font-size: 0.85rem;
    color: var(--dt-text-muted);
}

/* Chunky Toggle Switch */
.dt-toggle {
    position: relative;
    display: inline-block;
    width: 54px;
    height: 28px;
    flex-shrink: 0;
}

.dt-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.dt-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    transition: .15s;
    border-radius: 30px;
}

.dt-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: var(--dt-border);
    transition: .15s;
    border-radius: 50%;
}

input:checked + .dt-slider {
    background-color: var(--dt-orange);
}

input:checked + .dt-slider:before {
    background-color: #FFFFFF;
    transform: translateX(24px);
    border: 1px solid var(--dt-border);
}

.dt-panel-footer {
    padding: 1.5rem 2rem;
    border-top: var(--dt-border-width) solid var(--dt-border);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    background-color: #F8FAFC;
}

@media (max-width: 600px) {
    .dt-form-grid {
        grid-template-columns: 1fr;
    }
    .dt-avatar-upload {
        flex-direction: column;
        align-items: flex-start;
        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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-settings-panel {
    max-width: 750px;
    margin: 0 auto;
    padding: 0;
    box-shadow: var(--dt-shadow-lg);
    overflow: hidden;
}

.dt-panel-header {
    padding: 2rem;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    background-color: #F8FAFC;
}

.dt-panel-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.dt-settings-body {
    padding: 2rem;
}

.dt-avatar-upload {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.dt-avatar-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 3px 3px 0px var(--dt-border);
    overflow: hidden;
    flex-shrink: 0;
}

.dt-avatar-lg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dt-upload-actions {
    display: flex;
    gap: 0.75rem;
}

.dt-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.dt-form-group.full-width {
    grid-column: 1 / -1;
}

.dt-textarea {
    resize: vertical;
    min-height: 100px;
}

.dt-toggle-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    margin-top: 1rem;
    border-top: var(--dt-border-width) solid var(--dt-border);
}

.dt-toggle-info .dt-label {
    margin-bottom: 0.125rem;
}

.dt-toggle-info p {
    font-size: 0.85rem;
    color: var(--dt-text-muted);
}

/* Chunky Toggle Switch */
.dt-toggle {
    position: relative;
    display: inline-block;
    width: 54px;
    height: 28px;
    flex-shrink: 0;
}

.dt-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.dt-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    transition: .15s;
    border-radius: 30px;
}

.dt-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: var(--dt-border);
    transition: .15s;
    border-radius: 50%;
}

input:checked + .dt-slider {
    background-color: var(--dt-orange);
}

input:checked + .dt-slider:before {
    background-color: #FFFFFF;
    transform: translateX(24px);
    border: 1px solid var(--dt-border);
}

.dt-panel-footer {
    padding: 1.5rem 2rem;
    border-top: var(--dt-border-width) solid var(--dt-border);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    background-color: #F8FAFC;
}

@media (max-width: 600px) {
    .dt-form-grid {
        grid-template-columns: 1fr;
    }
    .dt-avatar-upload {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

Cards

Chunky Stat Cards

HTML
<div class="dt-stats-grid">
    <div class="dt-stat-card dt-surface">
        <div class="dt-stat-header">
            <span class="dt-stat-title">Console Revenue</span>
            <div class="dt-stat-icon bg-orange text-white">
                <svg viewBox="0 0 24 24" width="20" height="20" stroke="currentColor" stroke-width="2.5" fill="none"><line x1="12" y1="1" x2="12" y2="23"></line><path d="M17 5H9.5a3.5 3.5 0 0 0 0 7h5a3.5 3.5 0 0 1 0 7H6"></path></svg>
            </div>
        </div>
        <div class="dt-stat-value">$142,850.00</div>
        <div class="dt-stat-footer">
            <span class="dt-trend dt-trend-up">
                <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><polyline points="17 6 23 6 23 12"></polyline></svg>
                +24%
            </span>
            <span class="dt-trend-label">vs last month</span>
        </div>
    </div>
    
    <div class="dt-stat-card dt-surface">
        <div class="dt-stat-header">
            <span class="dt-stat-title">Active Nodes</span>
            <div class="dt-stat-icon bg-indigo text-white">
                <svg viewBox="0 0 24 24" width="20" height="20" stroke="currentColor" stroke-width="2.5" fill="none"><path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"></path><circle cx="9" cy="7" r="4"></circle><path d="M23 21v-2a4 4 0 0 0-3-3.87"></path><path d="M16 3.13a4 4 0 0 1 0 7.75"></path></svg>
            </div>
        </div>
        <div class="dt-stat-value">12,490</div>
        <div class="dt-stat-footer">
            <span class="dt-trend dt-trend-up">
                <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><polyline points="17 6 23 6 23 12"></polyline></svg>
                +8.2%
            </span>
            <span class="dt-trend-label">vs last month</span>
        </div>
    </div>
    
    <div class="dt-stat-card dt-surface">
        <div class="dt-stat-header">
            <span class="dt-stat-title">Error Frequency</span>
            <div class="dt-stat-icon bg-orange text-white">
                <svg viewBox="0 0 24 24" width="20" height="20" stroke="currentColor" stroke-width="2.5" fill="none"><polyline points="22 12 18 12 15 21 9 3 6 12 2 12"></polyline></svg>
            </div>
        </div>
        <div class="dt-stat-value">1.04%</div>
        <div class="dt-stat-footer">
            <span class="dt-trend dt-trend-down">
                <svg viewBox="0 0 24 24" width="16" height="16" stroke="currentColor" stroke-width="2.5" fill="none"><polyline points="23 18 13.5 8.5 8.5 13.5 1 6"></polyline><polyline points="17 18 23 18 23 12"></polyline></svg>
                -4.5%
            </span>
            <span class="dt-trend-label">vs last month</span>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Chunky Stat Cards */
/* NOTE: This component requires base.css to be included in your page. */

.dt-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.dt-stat-card {
    display: flex;
    flex-direction: column;
    padding: 1.75rem;
}

.dt-stat-card:hover {
    transform: translate(-3px, -3px);
    box-shadow: 7px 7px 0px var(--dt-border);
}

.dt-stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.dt-stat-title {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text-muted);
}

.dt-stat-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--dt-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 2px 2px 0px var(--dt-border);
    flex-shrink: 0;
}

.dt-stat-value {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 2.25rem;
    color: var(--dt-text);
    margin-bottom: 1.5rem;
}

.dt-stat-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.dt-trend {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    padding: 0.125rem 0.5rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    box-shadow: 1px 1px 0px var(--dt-border);
}

.dt-trend-up {
    background-color: #DCFCE7;
    color: #15803D;
}

.dt-trend-down {
    background-color: #FEE2E2;
    color: #B91C1C;
}

.dt-trend-label {
    color: var(--dt-text-muted);
    font-weight: 500;
}
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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.dt-stat-card {
    display: flex;
    flex-direction: column;
    padding: 1.75rem;
}

.dt-stat-card:hover {
    transform: translate(-3px, -3px);
    box-shadow: 7px 7px 0px var(--dt-border);
}

.dt-stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.dt-stat-title {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text-muted);
}

.dt-stat-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--dt-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 2px 2px 0px var(--dt-border);
    flex-shrink: 0;
}

.dt-stat-value {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 2.25rem;
    color: var(--dt-text);
    margin-bottom: 1.5rem;
}

.dt-stat-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.dt-trend {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    padding: 0.125rem 0.5rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    box-shadow: 1px 1px 0px var(--dt-border);
}

.dt-trend-up {
    background-color: #DCFCE7;
    color: #15803D;
}

.dt-trend-down {
    background-color: #FEE2E2;
    color: #B91C1C;
}

.dt-trend-label {
    color: var(--dt-text-muted);
    font-weight: 500;
}

Bold Pricing Card

HTML
<div class="dt-pricing-card dt-surface">
    <div class="dt-pricing-accent-bar bg-orange"></div>
    
    <div class="dt-pricing-header">
        <h3 class="dt-pricing-title">Developer Pro</h3>
        <p class="dt-pricing-desc">The high-fidelity stack for aggressive builders.</p>
        <div class="dt-pricing-price">
            <span class="dt-currency">$</span>
            <span class="dt-amount">89</span>
            <span class="dt-period">/mo</span>
        </div>
    </div>
    
    <div class="dt-pricing-features">
        <ul>
            <li>
                <div class="dt-check bg-indigo text-white">
                    <svg viewBox="0 0 24 24" width="12" height="12" stroke="currentColor" stroke-width="3.5" fill="none"><polyline points="20 6 9 17 4 12"></polyline></svg>
                </div>
                Unlimited Console Nodes
            </li>
            <li>
                <div class="dt-check bg-indigo text-white">
                    <svg viewBox="0 0 24 24" width="12" height="12" stroke="currentColor" stroke-width="3.5" fill="none"><polyline points="20 6 9 17 4 12"></polyline></svg>
                </div>
                250 GB Hard Storage
            </li>
            <li>
                <div class="dt-check bg-indigo text-white">
                    <svg viewBox="0 0 24 24" width="12" height="12" stroke="currentColor" stroke-width="3.5" fill="none"><polyline points="20 6 9 17 4 12"></polyline></svg>
                </div>
                Custom Duotone Subdomain
            </li>
            <li class="dt-feature-disabled">
                <div class="dt-check-disabled">
                    <svg viewBox="0 0 24 24" width="12" height="12" stroke="currentColor" stroke-width="3" fill="none"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>
                </div>
                24/7 Dedicated Server Team
            </li>
        </ul>
    </div>
    
    <div class="dt-pricing-footer">
        <button class="dt-btn dt-btn-accent dt-btn-block">Initialize Stack</button>
    </div>
</div>
CSS (Component Only)
/* Component: Bold Pricing Card */
/* NOTE: This component requires base.css to be included in your page. */

.dt-pricing-card {
    max-width: 380px;
    margin: 0 auto;
    padding: 2.5rem 2rem 2rem;
    position: relative;
    box-shadow: var(--dt-shadow-lg);
    overflow: hidden;
}

.dt-pricing-accent-bar {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 8px;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
}

.dt-pricing-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
}

.dt-pricing-title {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.dt-pricing-desc {
    font-size: 0.95rem;
    color: var(--dt-text-muted);
    margin-bottom: 1.5rem;
}

.dt-pricing-price {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    color: var(--dt-text);
}

.dt-currency {
    font-family: var(--dt-font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    margin-right: 0.2rem;
}

.dt-amount {
    font-family: var(--dt-font-heading);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
}

.dt-period {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    color: var(--dt-text-muted);
    margin-bottom: 0.5rem;
    margin-left: 0.2rem;
}

.dt-pricing-features ul {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.dt-pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--dt-text);
    font-weight: 600;
}

.dt-check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 1px 1px 0px var(--dt-border);
    flex-shrink: 0;
}

.dt-check-disabled {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #E2E8F0;
    color: #94A3B8;
    border: var(--dt-border-width) solid #CBD5E1;
    flex-shrink: 0;
}

.dt-feature-disabled {
    color: var(--dt-text-muted) !important;
    text-decoration: line-through;
    opacity: 0.6;
}
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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-pricing-card {
    max-width: 380px;
    margin: 0 auto;
    padding: 2.5rem 2rem 2rem;
    position: relative;
    box-shadow: var(--dt-shadow-lg);
    overflow: hidden;
}

.dt-pricing-accent-bar {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 8px;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
}

.dt-pricing-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
}

.dt-pricing-title {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.dt-pricing-desc {
    font-size: 0.95rem;
    color: var(--dt-text-muted);
    margin-bottom: 1.5rem;
}

.dt-pricing-price {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    color: var(--dt-text);
}

.dt-currency {
    font-family: var(--dt-font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    margin-right: 0.2rem;
}

.dt-amount {
    font-family: var(--dt-font-heading);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
}

.dt-period {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    color: var(--dt-text-muted);
    margin-bottom: 0.5rem;
    margin-left: 0.2rem;
}

.dt-pricing-features ul {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.dt-pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--dt-text);
    font-weight: 600;
}

.dt-check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 1px 1px 0px var(--dt-border);
    flex-shrink: 0;
}

.dt-check-disabled {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #E2E8F0;
    color: #94A3B8;
    border: var(--dt-border-width) solid #CBD5E1;
    flex-shrink: 0;
}

.dt-feature-disabled {
    color: var(--dt-text-muted) !important;
    text-decoration: line-through;
    opacity: 0.6;
}

Tables

Heavy Grid Data Table

HTML
<div class="dt-table-wrapper dt-surface">
    <div class="dt-table-header">
        <h3>Node Registry</h3>
        <button class="dt-btn dt-btn-outline" style="padding: 0.5rem 1rem; font-size: 0.85rem;">Export CSV</button>
    </div>
    
    <div class="dt-table-container">
        <table class="dt-table">
            <thead>
                <tr>
                    <th>Registry ID</th>
                    <th>Operator</th>
                    <th>Date Registered</th>
                    <th>Data Speed</th>
                    <th>Registry Status</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>#ND-8492</td>
                    <td>
                        <div class="dt-table-user">
                            <div class="dt-table-avatar">
                                <img src="https://i.pravatar.cc/150?img=11" alt="Avatar">
                            </div>
                            <span>Michael Chen</span>
                        </div>
                    </td>
                    <td>Oct 24, 2026</td>
                    <td>450.00 MB/s</td>
                    <td><span class="dt-status dt-status-success">ACTIVE</span></td>
                </tr>
                
                <tr>
                    <td>#ND-8493</td>
                    <td>
                        <div class="dt-table-user">
                            <div class="dt-table-avatar">
                                <img src="https://i.pravatar.cc/150?img=47" alt="Avatar">
                            </div>
                            <span>Sarah Jenkins</span>
                        </div>
                    </td>
                    <td>Oct 24, 2026</td>
                    <td>120.50 MB/s</td>
                    <td><span class="dt-status dt-status-pending">PENDING</span></td>
                </tr>
                
                <tr>
                    <td>#ND-8494</td>
                    <td>
                        <div class="dt-table-user">
                            <div class="dt-table-avatar">
                                <img src="https://i.pravatar.cc/150?img=12" alt="Avatar">
                            </div>
                            <span>David Smith</span>
                        </div>
                    </td>
                    <td>Oct 23, 2026</td>
                    <td>890.00 MB/s</td>
                    <td><span class="dt-status dt-status-success">ACTIVE</span></td>
                </tr>
                
                <tr>
                    <td>#ND-8495</td>
                    <td>
                        <div class="dt-table-user">
                            <div class="dt-table-avatar">
                                <img src="https://i.pravatar.cc/150?img=41" alt="Avatar">
                            </div>
                            <span>Emily Davis</span>
                        </div>
                    </td>
                    <td>Oct 22, 2026</td>
                    <td>65.00 MB/s</td>
                    <td><span class="dt-status dt-status-failed">FAILED</span></td>
                </tr>
            </tbody>
        </table>
    </div>
    
    <div class="dt-table-pagination">
        <span class="dt-text-muted">Showing 1 to 4 of 24 entries</span>
        <div class="dt-pagination-controls">
            <button class="dt-btn dt-btn-ghost" disabled style="padding: 0.4rem 0.8rem; font-size: 0.85rem;">Prev</button>
            <button class="dt-btn dt-btn-primary" style="padding: 0.4rem 0.8rem; border-radius: var(--dt-radius); font-size: 0.85rem;">1</button>
            <button class="dt-btn dt-btn-ghost" style="padding: 0.4rem 0.8rem; border-radius: var(--dt-radius); font-size: 0.85rem;">2</button>
            <button class="dt-btn dt-btn-ghost" style="padding: 0.4rem 0.8rem; border-radius: var(--dt-radius); font-size: 0.85rem;">3</button>
            <button class="dt-btn dt-btn-ghost" style="padding: 0.4rem 0.8rem; font-size: 0.85rem;">Next</button>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: Heavy Grid Data Table */
/* NOTE: This component requires base.css to be included in your page. */

.dt-table-wrapper {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0;
    box-shadow: var(--dt-shadow-lg);
    overflow: hidden;
}

.dt-table-header {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    background-color: #F8FAFC;
}

.dt-table-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

.dt-table-container {
    width: 100%;
    overflow-x: auto;
}

.dt-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 650px;
}

.dt-table th {
    text-align: left;
    padding: 1rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--dt-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    border-right: var(--dt-border-width) solid var(--dt-border);
    background-color: #F1F5F9;
}

.dt-table th:last-child {
    border-right: none;
}

.dt-table td {
    padding: 1rem 1.5rem;
    font-size: 0.95rem;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    border-right: var(--dt-border-width) solid var(--dt-border);
    color: var(--dt-text);
    vertical-align: middle;
    background-color: #FFFFFF;
    font-weight: 500;
}

.dt-table td:last-child {
    border-right: none;
}

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

.dt-table tbody tr {
    transition: background 0.1s ease;
}

.dt-table tbody tr:hover td {
    background-color: #F8FAFC;
}

.dt-table-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.dt-table-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 1px 1px 0px var(--dt-border);
    overflow: hidden;
    flex-shrink: 0;
}

.dt-table-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dt-status {
    padding: 0.25rem 0.6rem;
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.75rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 1px 1px 0px var(--dt-border);
    display: inline-block;
}

.dt-status-success {
    background-color: #DCFCE7;
    color: #166534;
}

.dt-status-pending {
    background-color: #FEF3C7;
    color: #92400E;
}

.dt-status-failed {
    background-color: #FEE2E2;
    color: #991B1B;
}

.dt-table-pagination {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: var(--dt-border-width) solid var(--dt-border);
    background-color: #F8FAFC;
}

.dt-pagination-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

@media (max-width: 768px) {
    .dt-table-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .dt-table-pagination { flex-direction: column; gap: 1rem; text-align: 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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-table-wrapper {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0;
    box-shadow: var(--dt-shadow-lg);
    overflow: hidden;
}

.dt-table-header {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    background-color: #F8FAFC;
}

.dt-table-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

.dt-table-container {
    width: 100%;
    overflow-x: auto;
}

.dt-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 650px;
}

.dt-table th {
    text-align: left;
    padding: 1rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--dt-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    border-right: var(--dt-border-width) solid var(--dt-border);
    background-color: #F1F5F9;
}

.dt-table th:last-child {
    border-right: none;
}

.dt-table td {
    padding: 1rem 1.5rem;
    font-size: 0.95rem;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    border-right: var(--dt-border-width) solid var(--dt-border);
    color: var(--dt-text);
    vertical-align: middle;
    background-color: #FFFFFF;
    font-weight: 500;
}

.dt-table td:last-child {
    border-right: none;
}

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

.dt-table tbody tr {
    transition: background 0.1s ease;
}

.dt-table tbody tr:hover td {
    background-color: #F8FAFC;
}

.dt-table-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.dt-table-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 1px 1px 0px var(--dt-border);
    overflow: hidden;
    flex-shrink: 0;
}

.dt-table-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dt-status {
    padding: 0.25rem 0.6rem;
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.75rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 1px 1px 0px var(--dt-border);
    display: inline-block;
}

.dt-status-success {
    background-color: #DCFCE7;
    color: #166534;
}

.dt-status-pending {
    background-color: #FEF3C7;
    color: #92400E;
}

.dt-status-failed {
    background-color: #FEE2E2;
    color: #991B1B;
}

.dt-table-pagination {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: var(--dt-border-width) solid var(--dt-border);
    background-color: #F8FAFC;
}

.dt-pagination-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

@media (max-width: 768px) {
    .dt-table-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .dt-table-pagination { flex-direction: column; gap: 1rem; text-align: center; }
}

Lists

Hard-Border Activity Feed

HTML
<div class="dt-activity-feed dt-surface">
    <div class="dt-feed-header">
        <h3>Node Activity Feed</h3>
        <button class="dt-btn dt-btn-outline" style="padding: 0.4rem 0.8rem; font-size: 0.85rem;">Mark Read</button>
    </div>
    
    <ul class="dt-feed-list">
        <li class="dt-feed-item dt-unread">
            <div class="dt-feed-icon bg-indigo text-white">
                <svg viewBox="0 0 24 24" width="18" height="18" stroke="currentColor" stroke-width="2.5" fill="none"><path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"></path></svg>
            </div>
            <div class="dt-feed-content">
                <p><strong class="text-indigo">Sarah Jenkins</strong> requested node synchronization.</p>
                <span class="dt-feed-time">2 hours ago</span>
            </div>
            <div class="dt-unread-dot bg-orange"></div>
        </li>
        
        <li class="dt-feed-item dt-unread">
            <div class="dt-feed-icon bg-orange text-white">
                <svg viewBox="0 0 24 24" width="18" height="18" 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"></path></svg>
            </div>
            <div class="dt-feed-content">
                <p><strong>Michael Chen</strong> flagged Operator #TRX-8495.</p>
                <span class="dt-feed-time">4 hours ago</span>
            </div>
            <div class="dt-unread-dot bg-orange"></div>
        </li>
        
        <li class="dt-feed-item">
            <div class="dt-feed-icon" style="background-color: #E2E8F0; color: var(--dt-text);">
                <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"></polyline></svg>
            </div>
            <div class="dt-feed-content">
                <p>Console registry successfully compiled version 2.4.0</p>
                <span class="dt-feed-time">Yesterday at 4:30 PM</span>
            </div>
        </li>
        
        <li class="dt-feed-item">
            <div class="dt-feed-icon bg-indigo text-white">
                <svg viewBox="0 0 24 24" width="18" height="18" stroke="currentColor" stroke-width="2.5" fill="none"><path d="M16 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"></path><circle cx="8.5" cy="7" r="4"></circle><line x1="20" y1="8" x2="20" y2="14"></line><line x1="23" y1="11" x2="17" y2="11"></svg>
            </div>
            <div class="dt-feed-content">
                <p><strong>Emily Davis</strong> registered new operator stack</p>
                <span class="dt-feed-time">Oct 22, 2026</span>
            </div>
        </li>
    </ul>
    
    <div class="dt-feed-footer">
        <a href="#" class="dt-btn dt-btn-ghost dt-btn-block">View Full Registry Activity</a>
    </div>
</div>
CSS (Component Only)
/* Component: Hard-Border Activity Feed */
/* NOTE: This component requires base.css to be included in your page. */

.dt-activity-feed {
    max-width: 500px;
    margin: 0 auto;
    padding: 0;
    box-shadow: var(--dt-shadow-lg);
    overflow: hidden;
}

.dt-feed-header {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    background-color: #F8FAFC;
}

.dt-feed-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

.dt-feed-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dt-feed-item {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.25rem 2rem;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    position: relative;
    transition: background 0.1s ease;
    background-color: #FFFFFF;
}

.dt-feed-item:last-child {
    border-bottom: none;
}

.dt-feed-item:hover {
    background-color: #F8FAFC;
}

.dt-feed-item.dt-unread {
    background-color: #FFF7ED; /* Soft Orange pastel */
}

.dt-feed-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 1px 1px 0px var(--dt-border);
    flex-shrink: 0;
}

.dt-feed-content {
    flex: 1;
}

.dt-feed-content p {
    margin: 0 0 0.25rem 0;
    font-size: 0.95rem;
    color: var(--dt-text);
    font-weight: 500;
}

.dt-feed-content strong {
    font-weight: 700;
}

.dt-feed-time {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--dt-text-muted);
}

.dt-unread-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 1px 1px 0px var(--dt-border);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.dt-feed-footer {
    padding: 1.25rem;
    border-top: var(--dt-border-width) solid var(--dt-border);
    background-color: #F8FAFC;
}
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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-activity-feed {
    max-width: 500px;
    margin: 0 auto;
    padding: 0;
    box-shadow: var(--dt-shadow-lg);
    overflow: hidden;
}

.dt-feed-header {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    background-color: #F8FAFC;
}

.dt-feed-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

.dt-feed-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dt-feed-item {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.25rem 2rem;
    border-bottom: var(--dt-border-width) solid var(--dt-border);
    position: relative;
    transition: background 0.1s ease;
    background-color: #FFFFFF;
}

.dt-feed-item:last-child {
    border-bottom: none;
}

.dt-feed-item:hover {
    background-color: #F8FAFC;
}

.dt-feed-item.dt-unread {
    background-color: #FFF7ED; /* Soft Orange pastel */
}

.dt-feed-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 1px 1px 0px var(--dt-border);
    flex-shrink: 0;
}

.dt-feed-content {
    flex: 1;
}

.dt-feed-content p {
    margin: 0 0 0.25rem 0;
    font-size: 0.95rem;
    color: var(--dt-text);
    font-weight: 500;
}

.dt-feed-content strong {
    font-weight: 700;
}

.dt-feed-time {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--dt-text-muted);
}

.dt-unread-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 1px 1px 0px var(--dt-border);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.dt-feed-footer {
    padding: 1.25rem;
    border-top: var(--dt-border-width) solid var(--dt-border);
    background-color: #F8FAFC;
}

Modals

High-Contrast Dialog Modal

HTML
<!-- Note: For library preview, this modal is shown inline. For production, wrap this container in a fixed overlay. -->
<div class="dt-modal-wrapper">
    <div class="dt-modal dt-surface">
        <div class="dt-modal-icon bg-orange text-white">
            <svg fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2.5">
              <path stroke-linecap="round" stroke-linejoin="round" d="M12 9v3m0 3h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z" />
            </svg>
        </div>
        
        <div class="dt-modal-content">
            <h3 class="dt-modal-title">Purge Registry Node?</h3>
            <p class="dt-modal-desc">You are about to purge this registry block node. All linked operators and node registries will be permanently disconnected. This action cannot be undone.</p>
        </div>
        
        <div class="dt-modal-actions">
            <button class="dt-btn dt-btn-outline" style="flex: 1;">Cancel</button>
            <button class="dt-btn dt-btn-accent" style="flex: 1;">Purge Node</button>
        </div>
    </div>
</div>
CSS (Component Only)
/* Component: High-Contrast Dialog Modal */
/* NOTE: This component requires base.css to be included in your page. */

.dt-modal-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1.5rem;
}

.dt-modal {
    max-width: 460px;
    width: 100%;
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--dt-shadow-lg);
    background-color: #FFFFFF;
}

.dt-modal-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 2px 2px 0px var(--dt-border);
    flex-shrink: 0;
}

.dt-modal-icon svg {
    width: 28px;
    height: 28px;
}

.dt-modal-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.dt-modal-desc {
    font-size: 0.95rem;
    color: var(--dt-text-muted);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.dt-modal-actions {
    display: flex;
    gap: 1rem;
    width: 100%;
}

@media (max-width: 480px) {
    .dt-modal-actions {
        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=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&display=swap');

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

:root {
    --dt-indigo: #312E81;
    --dt-indigo-light: #4F46E5;
    --dt-orange: #EA580C;
    --dt-orange-light: #F97316;
    
    --dt-bg: #F8FAFC;
    --dt-surface: #FFFFFF;
    --dt-text: #0F172A;
    --dt-text-muted: #475569;
    --dt-border: #0F172A;
    --dt-border-width: 2px;
    --dt-radius: 4px;
    
    /* Hard solid shadows */
    --dt-shadow: 4px 4px 0px var(--dt-border);
    --dt-shadow-sm: 2px 2px 0px var(--dt-border);
    --dt-shadow-lg: 8px 8px 0px var(--dt-border);
    --dt-shadow-orange: 4px 4px 0px var(--dt-orange);
    --dt-shadow-indigo: 4px 4px 0px var(--dt-indigo);
    
    --dt-font-heading: 'Space Grotesk', sans-serif;
    --dt-font-body: 'Inter', sans-serif;
}

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

/* Duotone / Brutalist Utilities */
.dt-surface {
    background-color: var(--dt-surface);
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
    transition: all 0.15s ease;
}

.dt-surface-indigo {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

.dt-surface-orange {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: var(--dt-shadow);
    border-radius: var(--dt-radius);
    padding: 1.5rem;
}

/* Global Buttons */
.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    gap: 0.5rem;
    position: relative;
}

/* Primary Button (Deep Indigo / White / Orange shadow or custom interaction) */
.dt-btn-primary {
    background-color: var(--dt-indigo);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-primary:hover {
    background-color: var(--dt-indigo-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-primary:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Secondary/Accent Button (Vibrant Orange) */
.dt-btn-accent {
    background-color: var(--dt-orange);
    color: #FFFFFF;
    box-shadow: var(--dt-shadow);
}

.dt-btn-accent:hover {
    background-color: var(--dt-orange-light);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-accent:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Outline Button */
.dt-btn-outline {
    background-color: var(--dt-surface);
    color: var(--dt-text);
    box-shadow: var(--dt-shadow);
}

.dt-btn-outline:hover {
    background-color: #F1F5F9;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--dt-border);
}

.dt-btn-outline:active {
    transform: translate(4px, 4px);
    box-shadow: 0px 0px 0px var(--dt-border);
}

/* Ghost / Plain Button */
.dt-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--dt-text);
}

.dt-btn-ghost:hover {
    background-color: rgba(15, 23, 42, 0.05);
    border-color: var(--dt-border);
}

.dt-btn-ghost:active {
    transform: translate(2px, 2px);
}

.dt-btn-circle {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dt-btn-block {
    width: 100%;
}

/* Global Form Inputs */
.dt-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: var(--dt-border-width) solid var(--dt-border);
    border-radius: var(--dt-radius);
    font-family: var(--dt-font-body);
    font-size: 0.95rem;
    color: var(--dt-text);
    background-color: var(--dt-surface);
    outline: none;
    transition: all 0.15s ease;
}

.dt-input::placeholder {
    color: var(--dt-text-muted);
    opacity: 0.7;
}

.dt-input:focus {
    box-shadow: var(--dt-shadow-indigo);
    transform: translate(-2px, -2px);
}

.dt-label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--dt-font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dt-text);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--dt-font-heading);
    font-weight: 700;
    margin: 0;
    color: var(--dt-text);
}

p {
    line-height: 1.6;
    margin: 0;
    color: var(--dt-text-muted);
}

/* Text Colors */
.text-indigo { color: var(--dt-indigo); }
.text-orange { color: var(--dt-orange); }
.text-white { color: #FFFFFF; }

/* Accent background */
.bg-indigo { background-color: var(--dt-indigo); }
.bg-orange { background-color: var(--dt-orange); }


/* --- COMPONENT STYLES --- */
.dt-modal-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1.5rem;
}

.dt-modal {
    max-width: 460px;
    width: 100%;
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--dt-shadow-lg);
    background-color: #FFFFFF;
}

.dt-modal-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    border: var(--dt-border-width) solid var(--dt-border);
    box-shadow: 2px 2px 0px var(--dt-border);
    flex-shrink: 0;
}

.dt-modal-icon svg {
    width: 28px;
    height: 28px;
}

.dt-modal-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.dt-modal-desc {
    font-size: 0.95rem;
    color: var(--dt-text-muted);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.dt-modal-actions {
    display: flex;
    gap: 1rem;
    width: 100%;
}

@media (max-width: 480px) {
    .dt-modal-actions {
        flex-direction: column;
    }
}

Footers