*{box-sizing:border-box}body{margin:0;background:#f3f6fb;color:#15223b;font:16px/1.7 system-ui,sans-serif}header,main,footer{max-width:1000px;margin:auto;padding:24px}header{display:flex;align-items:center;gap:16px;flex-wrap:wrap}header img{width:48px;height:48px;border-radius:12px}a{color:#0658dc}h1{font-size:clamp(30px,5vw,48px);line-height:1.2}h2{line-height:1.3}.card{background:white;border:1px solid #dce4f1;border-radius:24px;padding:clamp(20px,4vw,40px);margin-bottom:24px}.button{display:inline-block;background:#0754d9;color:white;text-decoration:none;border-radius:12px;padding:12px 22px;font-weight:700}.muted{color:#4e607a}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}.grid a{display:block;padding:14px;border:1px solid #dce4f1;border-radius:12px;text-decoration:none;background:white}nav{display:flex;gap:16px;flex-wrap:wrap}details{border-top:1px solid #dce4f1;padding:16px 0}summary{font-weight:700;cursor:pointer}.price{font-size:24px;font-weight:700}footer{font-size:14px}