* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #fff;
    background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.3), transparent 35%),
                radial-gradient(circle at bottom right, rgba(168, 85, 247, 0.25), transparent 30%),
                #090b1c;
}

.hero {
    min-height: 100vh;
    display: grid;
    place-items: center;
    text-align: center;
    padding: 3rem 1.5rem;
}

.hero-content {
    max-width: 760px;
    margin: 0 auto;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.8rem;
    color: #7dd3fc;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin: 0 0 1rem;
    line-height: 1.05;
}

.subtitle {
    max-width: 640px;
    margin: 0 auto 2rem;
    color: #cbd5e1;
    line-height: 1.7;
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.95rem 1.8rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background: linear-gradient(135deg, #38bdf8, #8b5cf6);
    color: #fff;
    box-shadow: 0 20px 50px rgba(56, 189, 248, 0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #f8fafc;
}

.section {
    padding: 5rem 1.5rem;
    max-width: 1120px;
    margin: 0 auto;
}

.section-header {
    max-width: 720px;
    margin: 0 auto 2rem;
    text-align: center;
}

.section-header h2 {
    margin: 0 0 0.75rem;
    font-size: clamp(2rem, 3vw, 2.75rem);
}

.section-header p {
    margin: 0;
    color: #cbd5e1;
    line-height: 1.8;
}

.cards {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 2rem;
    min-height: 220px;
}

.card h3 {
    margin-top: 0;
    margin-bottom: 0.75rem;
}

.card p {
    margin: 0;
    line-height: 1.75;
    color: #dbeafe;
}

.about ul {
    list-style: none;
    padding: 0;
    margin: 2rem auto 0;
    max-width: 620px;
    display: grid;
    gap: 1rem;
}

.about li {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 1rem 1.25rem;
    color: #e2e8f0;
}

.contact {
    text-align: center;
}

.footer {
    padding: 2rem 1.5rem;
    text-align: center;
    color: #94a3b8;
}

@media (max-width: 640px) {
    .hero {
        padding: 2.5rem 1rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .card {
        padding: 1.5rem;
    }
}