:root{--bg:#0B1724;--band:#10233A;--card:#172C45;--ink:#E8EEF5;--muted:#9AA8B8;--accent:#C9A55E;--line:rgba(232,238,245,.12)}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.55 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif}
a{color:var(--accent)}
.wrap{max-width:860px;margin:0 auto;padding:0 20px}
header{background:radial-gradient(120% 100% at 50% 0,var(--band),var(--bg));border-bottom:1px solid var(--line)}
nav{display:flex;gap:18px;align-items:center;padding:16px 0;flex-wrap:wrap}
nav .brand{display:flex;gap:10px;align-items:center;color:var(--ink);text-decoration:none;font-weight:700;margin-right:auto}
nav .brand img{width:30px;height:30px;border-radius:8px}
nav a{text-decoration:none;font-weight:600;font-size:15px}
.langs{display:flex;gap:8px;font-size:14px}.langs a{color:var(--muted)}.langs a.on{color:var(--ink)}
.hero{padding:56px 0 64px;position:relative;overflow:hidden}
.hero .mark{position:absolute;right:-60px;top:10px;width:300px;opacity:.16}
.hero img.icon{width:96px;height:96px;border-radius:22px;box-shadow:0 10px 30px rgba(0,0,0,.4)}
h1{font-size:42px;line-height:1.1;margin:18px 0 6px}
.tag{color:var(--accent);font-weight:600;margin:0 0 14px}
.lead{color:var(--muted);font-size:19px;max-width:620px}
.btn{display:inline-block;margin-top:22px;background:var(--accent);color:#14202E;font-weight:700;padding:13px 22px;border-radius:999px;text-decoration:none}
.btn.off{background:var(--card);color:var(--muted)}
main{padding:40px 0 56px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px}
.card h3{margin:0 0 6px;font-size:18px}.card p{margin:0;color:var(--muted);font-size:15px}
.note{color:var(--muted);font-size:15px;margin-top:26px}
h2{font-size:30px;margin:0 0 6px}
section.text h3{margin:28px 0 6px;font-size:19px}
section.text p{color:#C9D3DE;margin:0}
details{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:14px 18px;margin:10px 0}
summary{cursor:pointer;font-weight:600}details p{color:var(--muted);margin:10px 0 0}
footer{border-top:1px solid var(--line);padding:24px 0 40px;color:var(--muted);font-size:14px}
footer a{color:var(--muted)}
@media (max-width:560px){h1{font-size:32px}.hero .mark{width:200px;right:-70px}}