:root {
    color-scheme: dark;
    --background: #0f172a;
    --card: #111827;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --primary: #38bdf8;
    --primary-dark: #0284c7;
    --border: rgba(148, 163, 184, 0.2);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.22), transparent 32%), var(--background);
    color: var(--text);
}

.container {
    width: min(1120px, 92vw);
    margin: 0 auto;
    padding: 80px 0;
}

.hero {
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 56px;
    background: linear-gradient(135deg, rgba(17, 24, 39, 0.94), rgba(15, 23, 42, 0.86));
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

.badge {
    display: inline-flex;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.14);
    color: var(--primary);
    font-weight: 700;
    letter-spacing: 0.04em;
}

h1 {
    margin: 24px 0 16px;
    font-size: clamp(2.4rem, 7vw, 5rem);
    line-height: 0.95;
}

p {
    color: var(--muted);
    font-size: 1.12rem;
    line-height: 1.7;
    max-width: 740px;
}

.actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 32px;
}

.actions a {
    color: white;
    background: var(--primary-dark);
    padding: 14px 20px;
    border-radius: 14px;
    text-decoration: none;
    font-weight: 700;
}

.actions a:nth-child(2) {
    background: transparent;
    border: 1px solid var(--border);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 28px;
}

.card {
    padding: 28px;
    border-radius: 22px;
    background: rgba(17, 24, 39, 0.78);
    border: 1px solid var(--border);
}

.card h2 {
    margin-top: 0;
}

code {
    color: var(--primary);
}

@media (max-width: 800px) {
    .hero {
        padding: 32px;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }
}