:root {
    --bg-color: #020617;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --card-bg: #0f172a;
    --border: #1e293b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    overflow-x: hidden;
}

.container {
    position: relative;
    max-width: 600px;
    width: 100%;
    z-index: 10;
}

.glow {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    z-index: -1;
    border-radius: 50%;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    background: linear-gradient(to right, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

h2 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #e2e8f0;
}

ul {
    list-style: none;
    margin-bottom: 25px;
}

li {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    padding: 12px 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    font-family: monospace;
    color: #cbd5e1;
}

button {
    width: 100%;
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 15px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

button:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

footer {
    text-align: center;
    margin-top: 40px;
    color: var(--text-muted);
    font-size: 0.8rem;
}