:root{
  --brand:#0f3b63; --teal:#0aa4a6; --good:#0a7; --bad:#c33; --ink:#0f172a; --bg:#f6f8fb; --panel:#ffffff; --muted:#667085; --line:#e5e7eb; --focus:#2563eb;
}
*{box-sizing:border-box}
html,body{height:100%}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;margin:0;padding:0;color:var(--ink);background:var(--bg);font-size:18px;line-height:1.5}
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:8px;top:8px;width:auto;height:auto;background:#fff;border:2px solid var(--focus);padding:6px 10px;border-radius:8px;z-index:10}
.site-header{padding:20px;border-bottom:1px solid var(--line);background:var(--panel)}
.brand{display:flex;gap:14px;align-items:center}
.logo{height:36px;width:auto;object-fit:contain;display:block}
.titles h1{margin:0;font-size:24px}
.subhead{margin:4px 0 0 0;color:var(--muted)}
.toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-top:12px;gap:10px}
.scenario-tabs{display:flex;gap:8px;flex-wrap:wrap}
.tab{border:1px solid var(--line);background:#fff;color:#0f172a;padding:8px 12px;border-radius:10px;cursor:pointer}
.tab[aria-selected="true"]{border-color:var(--brand);box-shadow:0 0 0 2px rgba(15,59,99,.1)}
.actions{display:flex;gap:8px;align-items:center}
button{border:1px solid var(--ink);background:var(--ink);color:#fff;padding:10px 14px;border-radius:10px;cursor:pointer}
button.secondary{background:#fff;color:#0f172a}
button.ghost{background:#fff;border-style:dashed;color:#111}
.share{border:1px dashed var(--ink);padding:8px 12px;border-radius:10px;text-decoration:none;color:inherit}
.status-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:12px}
.stat{display:flex;align-items:center;justify-content:space-between;border:1px solid var(--line);background:#fff;padding:8px 10px;border-radius:10px}
.stat span{font-size:12px;color:#475569}
.stat strong{font-size:16px}
.ok{color:#047857}.warn{color:#b45309}
.dashboard-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:14px}
.metric{border:1px solid var(--line);border-radius:12px;padding:12px;background:#f8fafc;text-align:center}
.kpi{font-size:22px;font-weight:800}
.klabel{font-size:13px;color:#475569}
main{padding:20px}
.layout{display:grid;grid-template-columns:320px 1fr 320px;gap:16px}
.sidebar,.why{border:1px solid var(--line);border-radius:12px;padding:14px;background:var(--panel);height:fit-content}
.hint,.small{font-size:12px;color:#64748b}
.toggles{list-style:none;padding:0;margin:10px 0;display:grid;gap:8px}
.toggle{width:100%;text-align:left;border:1px solid #cbd5e1;border-radius:10px;padding:10px 12px;background:#f8fafc;color:#0f172a}
.toggle.active{border-color:var(--good);background:#ecfdf5;color:#065f46;box-shadow:0 0 0 2px #a7f3d0 inset}
.panes{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pane{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;display:flex;flex-direction:column}
.pane-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:#fff;border-bottom:1px solid var(--line)}
.good-head{border-bottom:3px solid var(--good)}
.bad-head{border-bottom:3px solid var(--bad);background:linear-gradient(90deg,#fff 0,#fff6f6 100%)}
.tag{font-size:14px;padding:4px 10px;border-radius:999px;border:1px solid currentColor}
.tag.ok{color:var(--good)}
.tag.warn{color:var(--bad);background:#fff9f9}
.chat{padding:14px;height:360px;overflow:auto;background:#fff}
.msg{max-width:85%;margin:12px 0;padding:12px 14px;border-radius:12px;line-height:1.35;position:relative}
.meta{font-size:12px;color:#475569;margin-top:6px}
.msg.user{background:#eef5ff;align-self:flex-start;border:1px solid #d9e8ff}
.msg.agent{background:#effaf6;align-self:flex-end;border:1px solid #cfeee3}
.pane.bad .msg.agent{background:#fff3f3;border-color:#f1cdcd}
.controls{display:flex;gap:10px;padding:12px 14px 16px 14px}
.governance-notes{border-top:1px solid var(--line);background:#f0fdf4;padding:12px 14px}
.governance-notes.muted{background:#f8fafc;color:#475569}
pre{margin:0;white-space:pre-wrap;word-wrap:break-word}
footer{padding:16px;border-top:1px solid var(--line);text-align:center;color:#475569}
@media(max-width:1200px){.layout{grid-template-columns:1fr}.panes{grid-template-columns:1fr}.sidebar,.why{order:2}}