:root{--ink:#172033;--muted:#667085;--line:#e7e9ee;--brand:#6257e8;--bg:#f8f9fc}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 Inter,system-ui,-apple-system,"Segoe UI",sans-serif}header,main,footer{max-width:840px;margin:auto;padding:24px}header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.brand{font-size:21px;font-weight:800;letter-spacing:-.03em}.brand i{font-style:normal;color:var(--brand)}nav a{margin-left:18px;color:var(--muted);text-decoration:none}main{padding-top:70px;padding-bottom:70px}h1{font-size:42px;line-height:1.15;letter-spacing:-.04em;margin:0 0 18px}h2{font-size:22px;margin-top:38px}p,li{color:var(--muted)}a{color:var(--brand)}.hero p{font-size:19px;max-width:650px}.button{display:inline-block;margin-top:22px;background:var(--brand);color:white;text-decoration:none;padding:12px 18px;border-radius:10px;font-weight:700}.card{background:white;border:1px solid var(--line);border-radius:16px;padding:24px;margin-top:24px}footer{border-top:1px solid var(--line);color:var(--muted);font-size:13px}@media(max-width:640px){header{display:block}nav{margin-top:12px}nav a{margin:0 14px 0 0}h1{font-size:34px}main{padding-top:45px}}