:root{font-family:Arial,sans-serif;color:#eef2ff;background:#07111f}*{box-sizing:border-box}body{margin:0}header{display:flex;justify-content:space-between;align-items:center;padding:20px 6%;background:#0d1b2e;position:sticky;top:0}.brand{font-size:24px;font-weight:800;color:#5eead4;text-decoration:none}nav a,footer a{color:#dbeafe;text-decoration:none;margin-left:18px}main{max-width:1100px;margin:auto;padding:55px 24px}.hero{padding:70px 0}.hero h1{font-size:48px;margin:0 0 16px}.lead{font-size:20px;color:#b9c7db}.btn,button{display:inline-block;border:0;border-radius:10px;padding:12px 18px;background:#5eead4;color:#06211d;font-weight:700;text-decoration:none;cursor:pointer}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}.card{background:#0d1b2e;border:1px solid #20344e;border-radius:16px;padding:22px}input,select,textarea{width:100%;padding:12px;border-radius:8px;border:1px solid #334155;margin:7px 0 15px;background:#fff;color:#111}.price{font-size:28px;font-weight:800;color:#5eead4}.ok{color:#86efac}.bad{color:#fca5a5}footer{text-align:center;padding:30px;background:#0d1b2e;color:#94a3b8}@media(max-width:700px){header{display:block}nav{margin-top:15px}nav a{display:inline-block;margin:5px 12px 5px 0}.hero h1{font-size:36px}}