:root{color-scheme:dark;--bg:#08111f;--panel:#111f33;--ink:#edf5ff;--muted:#a9bbd1;--accent:#54d2c7;--line:#29405d}*{box-sizing:border-box}body{margin:0;background:linear-gradient(145deg,#07101d,#10243d);color:var(--ink);font:16px/1.55 system-ui,-apple-system,sans-serif;min-height:100vh}header{display:flex;gap:18px;align-items:center;flex-wrap:wrap;padding:18px clamp(18px,5vw,72px);border-bottom:1px solid var(--line);background:#07111de8}.brand{font-weight:800;font-size:1.25rem;margin-right:auto}nav{display:flex;gap:14px;flex-wrap:wrap}a{color:var(--accent);text-decoration:none}main{width:min(1100px,92%);margin:50px auto}.hero{padding:clamp(26px,6vw,70px);background:#0d1b2dbf;border:1px solid var(--line);border-radius:24px;box-shadow:0 24px 70px #0005}h1{font-size:clamp(2.2rem,6vw,5rem);line-height:1.02;margin:.2em 0}p{color:var(--muted);max-width:760px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.button,button{display:inline-block;border:0;border-radius:999px;padding:12px 20px;background:var(--accent);color:#05211f;font-weight:750;cursor:pointer}.button.alt{background:transparent;color:var(--accent);border:1px solid var(--accent)}.lang{margin:0}select,input{background:#0b1728;color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:9px}section,.card,fieldset{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px;margin:18px 0}label{display:block;margin:10px 0}.notice{border-left:4px solid var(--accent);padding:12px;background:#10283a}@media(max-width:700px){header{align-items:flex-start}nav{width:100%}main{margin:24px auto}.hero{padding:25px}}
details{margin:18px 0;border:1px solid var(--line);border-radius:16px;background:#0d1b2d;padding:12px}summary{cursor:pointer}summary h2{display:inline}textarea{width:100%;min-height:80px;background:#0b1728;color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:9px}form.card{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;align-items:end}