:root{--bg:#fff;--fg:#1b1f24;--mut:#5b6673;--line:#d8dee6;--card:#f5f7fa;--acc:#345c9c;--ok:#1a7f37;--warn:#b26b00;--bad:#b42318}
@media (prefers-color-scheme:dark){:root{--bg:#12161b;--fg:#e6e9ee;--mut:#9aa5b1;--line:#2b333d;--card:#1a2028;--acc:#7aa2e3;--ok:#4cc26a;--warn:#e0a03c;--bad:#f0736a}}
*{box-sizing:border-box}body{margin:0;font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--fg)}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}.narrow{max-width:420px;padding-top:40px}
header{border-bottom:1px solid var(--line)}header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;padding:12px 16px}
.brand{font-weight:700;letter-spacing:.5px}nav a,nav button{margin-right:14px;color:var(--fg);text-decoration:none;font-weight:600;font-size:14px;background:none;border:0;cursor:pointer;padding:0;font-family:inherit}
nav a.on{color:var(--acc);border-bottom:2px solid var(--acc)}h1{font-size:1.7rem;margin:1.2rem 0 .3rem}h2{font-size:1.2rem;margin-top:2rem}.lead{color:var(--mut);font-size:1.1rem}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:16px 0}.card{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:10px 12px}
.card span{display:block;font-size:11px;color:var(--mut);letter-spacing:.5px}.card b{font-size:1.15rem}.card.wide{margin:10px 0}
.ok{color:var(--ok)}.warn{color:var(--warn)}.bad{color:var(--bad)}.small{font-size:13px;color:var(--mut)}
table{width:100%;border-collapse:collapse;font-size:14px;margin:8px 0}th,td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--mut);font-size:12px}
code,pre{font-family:ui-monospace,Menlo,Consolas,monospace;background:var(--card);padding:1px 4px;border-radius:3px;word-break:break-all}pre{padding:10px;overflow-x:auto}
.btn{display:inline-block;background:var(--acc);color:#fff;border:0;border-radius:5px;padding:8px 14px;font-weight:600;text-decoration:none;cursor:pointer;font-size:14px}.btn.alt{background:none;color:var(--acc);border:1px solid var(--acc)}
.lookup{display:flex;gap:8px}.lookup input{flex:1}input,select{font:inherit;padding:7px;border:1px solid var(--line);border-radius:5px;background:var(--bg);color:var(--fg);width:100%}
input[type=checkbox]{width:auto}.stack{display:flex;flex-direction:column;gap:10px;max-width:480px;margin:8px 0}.stack label{display:flex;flex-direction:column;gap:3px;font-size:14px}
.inline{display:inline}.demo{background:#b26b00;color:#fff;text-align:center;padding:6px;font-weight:700;font-size:14px}.notice{background:var(--card);border-left:4px solid var(--acc);padding:8px 12px}
.scroll{overflow-x:auto}details{margin:6px 0}summary{cursor:pointer;font-weight:600}
.banner{margin:32px 0 12px;border:1px solid var(--line);border-radius:6px;overflow:hidden}.banner a{display:flex;gap:12px;align-items:center;color:inherit;text-decoration:none;padding:10px}.banner>div,.banner a>div{padding:10px}.banner img{max-height:80px;max-width:160px}.banner p{margin:2px 0 0}
footer{padding-bottom:32px}