:root{--ink:#22303c;--muted:#5d6b75;--bg:#fbf6ec;--card:#fff;--line:#e8dcc4;--accent:#1f8f86;--copper:#b5652b}
@media (prefers-color-scheme:dark){:root{--ink:#e9eef2;--muted:#a9b6bf;--bg:#14181c;--card:#1d2328;--line:#2d353c;--accent:#4fd1c5;--copper:#e39a5e}}
*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 "Segoe UI",system-ui,-apple-system,Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:28px 16px 64px}h1{font-size:30px;line-height:1.2;margin:8px 0 4px}h2{font-size:20px;margin:28px 0 6px}
.meta{color:var(--muted);font-size:14px}a{color:var(--copper)}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin:14px 0}
table{width:100%;border-collapse:collapse;font-size:15px}th,td{text-align:left;vertical-align:top;padding:8px 6px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:600}
nav{display:flex;gap:14px;font-size:14px;margin-bottom:8px}nav a{color:var(--accent);text-decoration:none;font-weight:600}
input{width:100%;font:inherit;padding:10px 12px;border:2px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink)}
button{font:inherit;font-weight:700;padding:10px 16px;border:0;border-radius:10px;background:#c0392b;color:#fff;margin-top:10px;cursor:pointer}
.ok{color:var(--accent);font-weight:700}.bad{color:#c0392b;font-weight:700}