:root{color-scheme:dark;--ink:#edf5ff;--muted:#a9bad0;--bg:#07111f;--panel:#0e1c30;--line:#29415d;--accent:#80e0d0;--gold:#f3c982}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 80% 0,#173a4c 0,transparent 38rem),var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--accent)}a:focus-visible{outline:3px solid var(--gold);outline-offset:3px}header,main,footer{max-width:960px;margin:auto;padding-left:24px;padding-right:24px}header{padding-top:22px;display:flex;gap:24px;align-items:center;justify-content:space-between}nav{display:flex;gap:14px;flex-wrap:wrap}.brand{font-weight:800;letter-spacing:.08em;color:#fff;text-decoration:none}.button{display:inline-block;padding:11px 17px;border:1px solid var(--accent);border-radius:999px;text-decoration:none;color:#06131e;background:var(--accent);font-weight:800}.button.secondary{background:transparent;color:var(--ink);border-color:var(--line)}main{min-height:65vh}section{padding:62px 0;border-bottom:1px solid rgba(128,224,208,.14)}h1{font-size:clamp(2.8rem,7vw,5rem);line-height:1;letter-spacing:-.05em}h2{font-size:clamp(2rem,4vw,3rem);line-height:1.1}.lead{font-size:1.2rem;color:#d5e2ef}.card{background:linear-gradient(145deg,#11243b,#0b1728);border:1px solid var(--line);border-radius:16px;padding:22px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}footer{padding-top:34px;padding-bottom:42px;display:grid;gap:18px}@media(max-width:720px){header{align-items:flex-start;flex-direction:column}section{padding:46px 0}}