:root{--bg:#f8fafc;--surface:#fff;--text:#0f172a;--muted:#5b6b7f;--primary:#0f766e;--border:#e2e8f0}
@media (prefers-color-scheme:dark){:root{--bg:#0f172a;--surface:#1e293b;--text:#f1f5f9;--muted:#a3b0c2;--primary:#2dd4bf;--border:#334155}}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
.wrap{max-width:760px;margin:0 auto;padding:24px 16px 64px}
header{display:flex;align-items:center;gap:12px;margin-bottom:24px}header .mark{width:40px;height:40px;border-radius:50%;border:4px solid var(--primary);position:relative}
header .mark::after{content:"";position:absolute;right:-2px;top:-2px;width:10px;height:10px;border-radius:50%;background:#f59e0b}
header h1{font-size:20px;margin:0}header a{color:var(--muted);text-decoration:none;margin-left:auto;font-size:14px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;margin-bottom:16px}
h2{font-size:22px;margin:0 0 8px}h3{font-size:17px;margin:20px 0 6px}p,li{color:var(--text)}small,.muted{color:var(--muted)}
nav.lang{display:flex;gap:8px;margin-bottom:16px}nav.lang a{padding:6px 12px;border-radius:999px;border:1px solid var(--border);text-decoration:none;color:var(--text);font-size:14px}
nav.lang a.active{background:var(--primary);color:#fff;border-color:var(--primary)}
a{color:var(--primary)}ul{padding-left:20px}
.links a{display:block;padding:12px 0;border-bottom:1px solid var(--border);text-decoration:none;font-weight:600}