:root {
    --primary: hsl(250, 80%, 60%);
    --primary-light: hsl(250, 80%, 70%);
    --accent: hsl(320, 80%, 60%);
    --bg: #0a0a0c;
    --card-bg: rgba(255, 255, 255, 0.03);
    --border: rgba(255, 255, 255, 0.1);
    --text: #f0f0f0;
    --text-muted: #a0a0a0;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg: #f8fafc;
        --card-bg: rgba(0, 0, 0, 0.02);
        --border: rgba(0, 0, 0, 0.1);
        --text: #0f172a;
        --text-muted: #64748b;
    }
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 80px 24px;
}

header {
    margin-bottom: 60px;
    text-align: center;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 40px 0 20px;
    color: var(--primary-light);
}

p {
    margin-bottom: 20px;
    color: var(--text-muted);
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.8s ease-out;
}

ul {
    margin: 20px 0;
    padding-left: 24px;
    color: var(--text-muted);
}

li {
    margin-bottom: 10px;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent);
}

.footer {
    margin-top: 80px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 640px) {
    h1 { font-size: 2.2rem; }
    .container { padding-top: 40px; }
    .card { padding: 24px; }
}