:root{--bg:#f5f6f8;--card:#fff;--text:#1b1f27;--muted:#667085;--line:#e3e6eb;--accent:#1f4fd8;--ok:#117a45;--warn:#a15c00;--bad:#b42318}
@media (prefers-color-scheme:dark){:root{--bg:#12151b;--card:#1b2029;--text:#e8ebf0;--muted:#98a2b3;--line:#2b3340;--accent:#6f93ff;--ok:#4ac98a;--warn:#f0b34a;--bad:#ff8a80}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.45 system-ui,Segoe UI,Roboto,sans-serif}
.hidden{display:none!important}
header{display:flex;gap:16px;align-items:center;padding:10px 16px;background:var(--card);border-bottom:1px solid var(--line);flex-wrap:wrap}
nav{display:flex;gap:4px;flex-wrap:wrap}
nav button{border:0;background:none;padding:6px 10px;border-radius:6px;color:var(--muted);cursor:pointer}
nav button.on{background:var(--accent);color:#fff}
.grow{flex:1}
.banner{background:#fff7e0;color:#5c4400;padding:8px 16px;font-size:13px;border-bottom:1px solid var(--line)}
@media (prefers-color-scheme:dark){.banner{background:#3a2f12;color:#f3dca0}}
main{padding:16px;max-width:1200px;margin:0 auto}
.center{display:flex;min-height:100vh;align-items:center;justify-content:center;padding:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:16px}
.narrow{width:100%;max-width:360px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:16px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px}
.stat b{display:block;font-size:24px}
h1,h2,h3{margin:.2em 0 .6em}
label{display:block;margin:8px 0;font-size:13px;color:var(--muted)}
input,select,textarea{display:block;width:100%;padding:7px 9px;margin-top:3px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--text);font:inherit}
button{font:inherit;padding:6px 12px;border-radius:6px;border:1px solid var(--line);background:var(--card);color:var(--text);cursor:pointer}
button.primary{background:var(--accent);border-color:var(--accent);color:#fff}
button.danger{color:var(--bad)}
table{width:100%;border-collapse:collapse}
.tw{overflow-x:auto}
th,td{text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--muted);font-weight:600;font-size:12px}
.muted{color:var(--muted)}
.err{color:var(--bad)}
.pill{display:inline-block;padding:1px 8px;border-radius:999px;font-size:12px;border:1px solid var(--line)}
.pill.ok{color:var(--ok)}.pill.warn{color:var(--warn)}.pill.bad{color:var(--bad)}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:flex-end}
.row>*{flex:1;min-width:140px}
.row>button{flex:0 0 auto}
.actions{display:flex;gap:6px;flex-wrap:wrap}
dl{display:grid;grid-template-columns:130px 1fr;gap:4px 12px;margin:0}
dt{color:var(--muted)}
#toast{position:fixed;bottom:16px;right:16px;background:var(--text);color:var(--bg);padding:10px 14px;border-radius:8px;opacity:0;transition:opacity .2s;pointer-events:none;max-width:80vw}
#toast.show{opacity:1}
.banner.demo{background:#fde8e8;color:#7a1a1a}
@media (prefers-color-scheme:dark){.banner.demo{background:#4a1d1d;color:#ffd0d0}}
pre{white-space:pre-wrap;margin:8px 0 0}