body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #0f172a;
    color: #e2e8f0;
}

header {
    background: linear-gradient(135deg, #0f172a, #1e293b);
    padding: 100px 20px;
    text-align: center;
}

h1 {
    font-size: 52px;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

h2 {
    font-size: 32px;
    margin-bottom: 30px;
}

section {
    padding: 80px 20px;
    max-width: 1200px;
    margin: auto;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.card {
    background: rgba(255,255,255,0.04);
    padding: 28px;
    border-radius: 18px;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.05);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-6px);
    border-color: rgba(56,189,248,0.5);
}

.card h3 {
    margin-top: 0;
    color: #38bdf8;
}

footer {
    text-align: center;
    padding: 40px;
    background: #0b1220;
    font-size: 14px;
    color: #94a3b8;
}

a {
    color: #38bdf8;
    text-decoration: none;
}