:root{--teal:#0b5d63;--teal-d:#084a4f;--amber:#8a4300;--amber-bg:#fff4e5;--ink:#1b2a2c;--muted:#4a5c5e;--line:#d5dfe0;--bg:#f4f8f8;--card:#fff;--ok:#0b6b3a;--err:#a31515}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:10}
.skip:focus{left:8px;top:8px}
.top{background:var(--teal);color:#fff;padding:20px 0 16px}
.top h1{margin:0 0 6px;font-size:1.6rem;line-height:1.2;font-weight:650}
.lead{margin:0 0 10px;max-width:70ch}
.note{margin:0;display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);border-radius:6px;padding:4px 10px;font-size:.9rem}
main.wrap{padding-top:16px;padding-bottom:32px}
h2{margin:0 0 8px;font-size:1.25rem}
.tabs{display:flex;gap:6px;overflow-x:auto;margin-bottom:12px}
.tabs button{flex:1 0 auto;padding:10px 14px;border:1px solid var(--line);background:#fff;border-radius:8px;font:inherit;font-weight:600;color:var(--ink);cursor:pointer}
.tabs button[aria-selected=true]{background:var(--teal);color:#fff;border-color:var(--teal)}
button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible,a:focus-visible{outline:3px solid #f59e0b;outline-offset:2px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
[hidden]{display:none!important}
.controls{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center}
fieldset.seg{display:flex;margin:0;padding:0;border:0;gap:0;flex-wrap:wrap}
.seg legend{font-size:.85rem;color:var(--muted);padding:0;margin-bottom:4px;float:left;width:100%}
.seg label{display:block;position:relative}
.seg input{position:absolute;opacity:0;inset:0;margin:0}
.seg span{display:block;padding:8px 14px;border:1px solid var(--teal);color:var(--teal);font-weight:600;cursor:pointer}
.seg label:first-of-type span{border-radius:8px 0 0 8px}
.seg label:last-of-type span{border-radius:0 8px 8px 0;border-left:0}
.seg input:checked+span{background:var(--teal);color:#fff}
.seg input:focus-visible+span{outline:3px solid #f59e0b;outline-offset:2px}
.seg input[value=naive]:checked+span{background:var(--amber);border-color:var(--amber)}
.check{display:flex;gap:6px;align-items:center}
.hint{color:var(--muted);font-size:.92rem;margin:8px 0}
.log{height:min(52vh,420px);overflow-y:auto;border:1px solid var(--line);border-radius:10px;padding:12px;background:#fbfdfd}
.empty p{margin:4px 0}
.suggest{margin-top:10px}
.suggest .hint{margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chip{padding:8px 12px;border:1px solid var(--teal);background:#fff;color:var(--teal);border-radius:999px;font:inherit;font-size:.93rem;cursor:pointer}
.chip:hover{background:#e6f2f2}
.msg{max-width:88%;margin:10px 0;padding:10px 12px;border-radius:12px;overflow-wrap:anywhere}
.msg.user{margin-left:auto;background:var(--teal);color:#fff;border-bottom-right-radius:3px}
.msg.bot{background:#eaf2f2;border-bottom-left-radius:3px}
.msg.bot.naive{background:var(--amber-bg);border:1px solid #f1c68b}
.msg.bot.err{background:#fdecec;border:1px solid #e9a3a3;color:#6b0f0f}
.meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px;font-size:.82rem}
.badge{padding:2px 8px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink)}
.badge.warn{background:var(--amber-bg);border-color:#f1c68b;color:var(--amber)}
.badge.good{border-color:#9fd3b6;color:var(--ok)}
.src{padding:2px 8px;border-radius:999px;border:1px solid var(--teal);background:#fff;color:var(--teal);font:inherit;font-size:.82rem;cursor:pointer}
.ask{margin-top:12px}
.ask label{display:block;font-weight:600;margin-bottom:4px}
.row{display:flex;gap:8px;flex-wrap:wrap}
input[type=text],textarea{flex:1;min-width:0;padding:10px 12px;border:1px solid #8aa0a2;border-radius:8px;font:inherit;width:100%}
.row input[type=text]{width:auto}
button.primary{padding:10px 18px;background:var(--teal);color:#fff;border:0;border-radius:8px;font:inherit;font-weight:600;cursor:pointer}
button.primary:hover{background:var(--teal-d)}
button.primary:disabled{opacity:.6;cursor:not-allowed}
button.ghost{padding:8px 14px;background:#fff;border:1px solid var(--line);border-radius:8px;font:inherit;cursor:pointer;color:var(--ink)}
.error{color:var(--err);margin:6px 0 0;font-weight:600}
.status{background:#eaf2f2;border-radius:8px;padding:8px 12px;margin:8px 0}
.split{display:grid;grid-template-columns:220px 1fr;gap:16px}
.pages{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.pages button{width:100%;text-align:left;padding:10px 12px;border:1px solid var(--line);background:#fff;border-radius:8px;font:inherit;cursor:pointer;color:var(--ink)}
.pages button[aria-current=true]{border-color:var(--teal);background:#e6f2f2;font-weight:600}
.pages small{display:block;color:var(--muted);font-weight:400}
.editor textarea{display:block;margin:4px 0 8px;font-family:ui-monospace,Consolas,monospace;font-size:.92rem}
.editor label{font-weight:600}
.empty-note{color:var(--muted)}
.summary{font-size:1.1rem;font-weight:600;color:var(--teal-d);margin:12px 0}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px}
table{border-collapse:collapse;width:100%;min-width:340px}
caption{text-align:left;padding:8px 12px;color:var(--muted);font-size:.9rem}
th,td{padding:8px 12px;border-top:1px solid var(--line);text-align:right}
th:first-child,td:first-child{text-align:left}
thead th{background:#eef4f4}
td.better{font-weight:700;color:var(--ok)}
.bars{margin-top:14px;display:grid;gap:8px}
.bar{display:grid;grid-template-columns:110px 1fr 70px;gap:8px;align-items:center;font-size:.9rem}
.bar i{display:block;height:14px;border-radius:7px;background:var(--teal)}
.bar i.n{background:var(--amber)}
.foot{color:var(--muted);font-size:.85rem;text-align:center;margin-top:16px}
@media (max-width:640px){
  .top h1{font-size:1.3rem}
  table{min-width:0;font-size:.85rem}
  th,td{padding:8px 6px}
  td{white-space:nowrap}
  .tabs button{flex:1 1 0;min-width:0;padding:8px 6px;font-size:.88rem}
  .split{grid-template-columns:1fr}
  .pages{flex-direction:row;flex-wrap:wrap}
  .pages li{flex:1 1 45%}
  .msg{max-width:96%}
  .bar{grid-template-columns:80px 1fr 56px}
  .row button{flex:1}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}