*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;background:#070B14;color:#fff}
header{background:#0b1020;padding:18px 40px;border-bottom:1px solid #1f2937}
nav a{color:#fff;text-decoration:none;margin-left:20px}
.hero{min-height:80vh;display:flex;align-items:center;justify-content:center;text-align:center;background:radial-gradient(circle at top,#16324a,#070B14)}
.hero h1{font-size:56px}.section{max-width:1200px;margin:auto;padding:70px 20px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{background:#111827;padding:24px;border-radius:12px}
.btn{padding:14px 22px;background:#00D4FF;color:#000;text-decoration:none;border-radius:8px}
footer{padding:25px;text-align:center;background:#0b1020}
input,textarea,select{width:100%;padding:12px;margin:8px 0;background:#111827;color:#fff;border:1px solid #374151}
button{padding:14px 22px;background:#00D4FF;border:none;border-radius:8px}