*{box-sizing:border-box}body{font-family:Inter,Arial,sans-serif;margin:0;background:#f7f8fc;color:#1f2937}.nav{display:flex;justify-content:space-between;align-items:center;padding:16px 6%;background:white;box-shadow:0 2px 16px #0001;position:sticky;top:0;z-index:2}.brand{font-weight:800;font-size:20px;color:#2563eb}.nav a{margin-left:14px;text-decoration:none;color:#111827}.btn,button,input[type=submit]{background:#2563eb;color:white!important;border:0;border-radius:12px;padding:10px 16px;cursor:pointer;text-decoration:none;display:inline-block}.btn.secondary{background:#111827}.container{max-width:1100px;margin:auto;padding:28px}.hero{padding:55px 28px;border-radius:28px;background:linear-gradient(135deg,#2563eb,#7c3aed);color:white;margin-bottom:28px}.hero h1{font-size:42px;margin:0 0 10px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}.card{background:white;border-radius:22px;padding:22px;box-shadow:0 10px 30px #00000012}.price{font-size:24px;font-weight:800;color:#16a34a}.form{max-width:520px;margin:auto}.form input,.form textarea,.form select{width:100%;padding:12px;border:1px solid #d1d5db;border-radius:12px;margin:8px 0 14px}.table{width:100%;border-collapse:collapse;background:white;border-radius:14px;overflow:hidden}.table th,.table td{padding:12px;border-bottom:1px solid #e5e7eb;text-align:left}.alert{padding:12px;border-radius:12px;background:#ecfdf5;color:#166534;margin-bottom:16px}.danger{background:#fee2e2;color:#991b1b}.question{margin-bottom:18px;padding:18px;border:1px solid #e5e7eb;border-radius:16px;background:white}.timer{font-size:22px;font-weight:800;color:#dc2626;position:sticky;top:72px;background:white;border-radius:16px;padding:12px;box-shadow:0 6px 18px #0001}.footer{text-align:center;padding:30px;color:#6b7280}@media(max-width:700px){.hero h1{font-size:30px}.nav{display:block}.nav div{margin-top:12px}}