* {
    box-sizing: border-box;
}

:root {
    color-scheme: dark;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: #020617;
    color: #e5e7eb;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background: radial-gradient(circle at top, rgba(59,130,246,0.16), transparent 22%),
                radial-gradient(circle at 80% 10%, rgba(16,185,129,0.14), transparent 20%),
                #020617;
}

.container {
    width: min(1200px, calc(100% - 2rem));
    margin: 0 auto;
}

.hero {
    padding: 4rem 0 3rem;
    text-align: center;
}

.eyebrow {
    margin: 0 0 0.8rem;
    color: #60a5fa;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.8rem;
}

h1 {
    margin: 0;
    font-size: clamp(2.5rem, 4vw, 4rem);
    line-height: 1.05;
}

.hero-copy {
    margin: 1rem auto 0;
    max-width: 760px;
    color: #cbd5e1;
    line-height: 1.75;
    font-size: 1rem;
}

.intro {
    margin-bottom: 2.5rem;
}

section h2 {
    margin: 0 0 1rem;
    font-size: 1.75rem;
}

.grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
    display: block;
    padding: 1.25rem 1.5rem;
    border-radius: 1rem;
    text-decoration: none;
    color: inherit;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.12);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover,
.card:focus-visible {
    transform: translateY(-3px);
    border-color: rgba(59, 130, 246, 0.85);
    box-shadow: 0 18px 40px rgba(14, 18, 38, 0.35);
}

.footer {
    padding: 2rem 0 3rem;
    color: #94a3b8;
    text-align: center;
}

@media (max-width: 600px) {
    .hero {
        padding: 3rem 0 2rem;
    }

    .hero-copy {
        font-size: 0.95rem;
    }
}