*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;background:#f5f7fb;color:#172033}header{background:#172554;color:#fff;padding:16px 5%;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}.brand{font-size:22px;font-weight:800;color:#fff;text-decoration:none}nav a{color:#fff;text-decoration:none;margin-left:16px}.card{background:#fff;border-radius:14px;padding:20px;margin:16px 0;box-shadow:0 4px 18px #0000000d}main{max-width:1050px;margin:25px auto;padding:0 16px}h1{font-size:30px}h2{margin-top:0}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.btn,button{display:inline-block;background:#2563eb;color:#fff;border:0;border-radius:9px;padding:10px 15px;text-decoration:none;cursor:pointer}.btn.secondary{background:#475569}.price{font-weight:bold;font-size:18px}input,textarea,select{width:100%;padding:11px;border:1px solid #cbd5e1;border-radius:8px;margin:6px 0 14px}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:10px;border-bottom:1px solid #e2e8f0;text-align:left}.ok{background:#dcfce7;padding:12px;border-radius:8px}.bad{background:#fee2e2;padding:12px;border-radius:8px}footer{text-align:center;padding:30px;color:#64748b}@media(max-width:600px){header{align-items:flex-start}nav{width:100%}nav a{margin:0 12px 0 0}h1{font-size:25px}}
