*{box-sizing:border-box}body{margin:0;background:#050b17;color:#edf5ff;font:16px system-ui,Arial}header{display:flex;align-items:center;gap:14px;padding:15px 6%;border-bottom:1px solid #15365d;background:#09152b}header img{width:60px;height:60px;object-fit:contain}header strong{display:block;letter-spacing:2px}header small{font-size:11px;color:#59b9ff}nav{margin-left:auto;display:flex;gap:20px}a{color:#c5e8ff;text-decoration:none}.hero{padding:100px 6%;background:radial-gradient(circle at 75% 45%,#113d78 0%,#08152b 36%,#050b17 70%)}.tag{color:#52b9ff;font-weight:700;letter-spacing:3px;font-size:12px}h1{font-size:clamp(44px,7vw,92px);line-height:1.05;margin:22px 0}em{font-style:normal;color:#2e9fff}.hero p{max-width:550px;color:#b5c8e1;line-height:1.7}.button{background:linear-gradient(120deg,#0075e9,#42b4ff);color:white;border:0;border-radius:9px;padding:13px 22px;font-weight:700;cursor:pointer;display:inline-block;margin-top:15px}section:not(.hero){padding:55px 6%}h2{font-size:34px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}.product,.checkout{background:#0b1930;border:1px solid #1a477b;border-radius:16px;padding:24px}.product strong{font-size:22px}.price{color:#56baff;font-size:25px;font-weight:800}.checkout{margin:30px 6% 65px}.checkout label{display:block;margin-top:20px;color:#c9d9ed}input{display:block;width:100%;max-width:500px;background:#071123;color:white;border:1px solid #2863a0;padding:14px;margin-top:8px;border-radius:9px}.cartline{padding:8px 0;border-bottom:1px solid #204269}.cartline button{margin-left:10px;background:#213d5e;color:white;border:0;border-radius:6px;padding:6px 10px;cursor:pointer}.muted{color:#8ea4bf;line-height:1.6}#result{margin-top:18px;line-height:1.7;overflow-wrap:anywhere}footer{text-align:center;color:#7895b7;padding:30px;border-top:1px solid #17395d}@media(max-width:600px){nav{font-size:12px;gap:10px}header{padding:12px}header img{width:42px;height:42px}.hero{padding:75px 6%}}