Stellar Primary Button - Free UI Component

Primary Color #6366f1

Accent Color (Gradient/Glow) #a855f7

Text Color #ffffff

Button Label Get Started Now

Rounding (px) 12

Vertical Padding (rem) 1

Horizontal Padding (rem) 2.5

Font Size (rem) 1.1

Glow Intensity (px) 30

Stellar Primary Button

A high-impact, premium primary action button featuring smooth gradients, dynamic hover lifting, and a sophisticated luminous glow. Perfectly balanced for high-conversion landing pages.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Primary Action Button</title>
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap" rel="stylesheet">
    <style>
        /* -- Variables ------------------------------------------------- */
        :root {
            --primary: {{primaryColor}};         /* Main Button Color */
            --accent: {{accentColor}};           /* Hover/Gradient Accent */
            --text: {{textColor}};               /* Button Text Color */
            --radius: {{borderRadius}}px;        /* Corner Rounding */
            --v-pad: {{vPadding}}rem;            /* Top/Bottom Padding */
            --h-pad: {{hPadding}}rem;            /* Left/Right Padding */
            --font-size: {{fontSize}}rem;        /* Text Size */
            --glow: {{glowIntensity}}px;         /* Glow/Shadow Spread */
            --page-bg: #0f172a;                  /* Preview Background */
        }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
            font-family: 'Plus Jakarta Sans', sans-serif;
            background-color: var(--page-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            color: #fff;
        }

/* -- Button Implementation --------------------------------------- */
        .btn-primary {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: var(--v-pad) var(--h-pad);
            font-size: var(--font-size);
            font-weight: 700;
            color: var(--text);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border: none;
            border-radius: var(--radius);
            cursor: pointer;
            text-decoration: none;
            transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
            box-shadow: 
                0 4px 10px rgba(0,0,0,0.3),
                0 0 calc(var(--glow) / 2) color-mix(in srgb, var(--accent), transparent 40%);
            overflow: hidden;
            letter-spacing: -0.01em;
            outline: none;
        }

/* Hover Dynamics */
        .btn-primary:hover {
            transform: translateY(-4px) scale(1.02);
            box-shadow: 
                0 15px 30px rgba(0,0,0,0.4),
                0 0 var(--glow) color-mix(in srgb, var(--accent), transparent 10%);
            filter: brightness(1.1);
        }

.btn-primary:active {
            transform: translateY(-1px) scale(0.98);
        }

/* Glow Effect Layer */
        .btn-primary::after {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: radial-gradient(circle at center, var(--accent), transparent 70%);
            opacity: 0;
            transition: opacity 0.4s ease;
            z-index: -1;
        }

.btn-primary:hover::after {
            opacity: 0.4;
        }

/* Shine Animation */
        .btn-primary::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 50%;
            height: 100%;
            background: linear-gradient(
                to right,
                transparent,
                rgba(255, 255, 255, 0.2),
                transparent
            );
            transform: skewX(-25deg);
            transition: 0.75s;
            pointer-events: none;
        }

.btn-primary:hover::before {
            left: 200%;
        }
    </style>
</head>
<body>

<button class="btn-primary">
        {{buttonText}}
    </button>

</body>
</html>