:root{--bg:#0f172a;--glass:rgba(255,255,255,.12);--border:rgba(255,255,255,.2);--text:#eef}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;color:var(--text);
background:linear-gradient(135deg,#0f172a,#1e293b,#0ea5e9);min-height:100vh}
header{position:sticky;top:0;background:rgba(15,23,42,.55);backdrop-filter:blur(14px);padding:14px}
nav a{color:#fff;text-decoration:none;margin:0 10px}
.container{max-width:1200px;margin:auto;padding:24px}
.hero,.card{background:var(--glass);backdrop-filter:blur(16px);border:1px solid var(--border);
border-radius:24px;padding:28px;box-shadow:0 8px 32px rgba(0,0,0,.25)}
.hero{text-align:center;padding:80px 30px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.btn{display:inline-block;padding:12px 20px;border-radius:12px;background:#22c55e;color:white;text-decoration:none}
footer{text-align:center;padding:30px}.logo{font-size:32px;font-weight:700}