*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;background:#0b1020;color:#f5f7ff}header{padding:25px 5%;background:#111831}.brand{font-size:29px;font-weight:800}.tag{color:#aab6d4}nav{display:flex;flex-wrap:wrap;gap:8px;margin-top:17px}nav a{color:#eef2ff;text-decoration:none;border:1px solid #3b4975;padding:8px 10px;border-radius:9px}main{max-width:1150px;margin:auto;padding:35px 5%}h1{font-size:38px}.lead{color:#c5cee4;font-size:18px;line-height:1.6}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(245px,1fr));gap:15px}.card{background:#151d35;border:1px solid #344266;border-radius:14px;padding:18px;line-height:1.55}.price{font-size:21px;font-weight:bold;color:#8ec5ff}.code{font-family:monospace;color:#9be5ff}table{width:100%;border-collapse:collapse}td,th{padding:11px;border:1px solid #344266;text-align:left}footer{padding:28px;text-align:center;color:#8d99b8;background:#111831;margin-top:35px}@media(max-width:600px){h1{font-size:29px}table{font-size:12px}}