:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #f0f2f8;
  --text: #171927;
  --muted: #62677b;
  --line: #dde0ea;
  --primary: #5746d7;
  --primary-soft: #ebe8ff;
  --good: #16835b;
  --warn: #b36b00;
  --shadow: 0 12px 30px rgba(31, 35, 59, .08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font: 15px/1.55 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.topbar {
  padding: 32px clamp(20px, 5vw, 72px);
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: end;
  color: #fff;
  background: linear-gradient(120deg, #29205f, #5746d7 58%, #7a54d8);
}
.eyebrow { margin: 0 0 4px; font-size: 12px; font-weight: 800; letter-spacing: .14em; opacity: .72; }
h1 { margin: 0; font-size: clamp(30px, 5vw, 48px); line-height: 1.1; }
.subtitle { margin: 10px 0 0; max-width: 720px; opacity: .82; }
.links { display: flex; flex-wrap: wrap; gap: 10px; }
.links a { color: #fff; border: 1px solid rgba(255,255,255,.35); padding: 8px 12px; border-radius: 10px; white-space: nowrap; }
main { padding: 24px clamp(14px, 4vw, 56px) 40px; }
.summary-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 20px; }
.summary-card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; box-shadow: var(--shadow); }
.summary-card strong { display: block; font-size: 25px; }
.summary-card span { color: var(--muted); font-size: 13px; }
.workspace { display: grid; grid-template-columns: minmax(290px, 380px) minmax(0, 1fr); gap: 18px; align-items: start; }
.sidebar, .detail { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
.sidebar { position: sticky; top: 12px; max-height: calc(100vh - 24px); overflow: hidden; display: flex; flex-direction: column; }
.filters { padding: 16px; border-bottom: 1px solid var(--line); }
label span { display: block; color: var(--muted); font-size: 12px; font-weight: 700; margin-bottom: 5px; }
input, select { width: 100%; padding: 10px 11px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--text); }
.filter-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.checkbox { display: flex; gap: 8px; align-items: center; margin-top: 12px; }
.checkbox input { width: auto; }
.checkbox span { margin: 0; }
.question-count { padding: 10px 16px; color: var(--muted); font-size: 12px; border-bottom: 1px solid var(--line); }
.question-list { overflow-y: auto; }
.question-item { display: block; width: 100%; text-align: left; border: 0; border-bottom: 1px solid var(--line); padding: 13px 15px; background: #fff; cursor: pointer; color: var(--text); }
.question-item:hover, .question-item.active { background: var(--primary-soft); }
.question-item strong { display: block; margin-bottom: 5px; }
.meta { display: flex; flex-wrap: wrap; gap: 6px; color: var(--muted); font-size: 11px; }
.pill { background: var(--surface-2); border-radius: 999px; padding: 2px 7px; }
.detail { min-height: 560px; padding: clamp(18px, 3vw, 30px); }
.empty-state { display: grid; place-items: center; min-height: 500px; color: var(--muted); }
.detail h2 { margin: 6px 0 12px; font-size: clamp(22px, 3vw, 32px); line-height: 1.25; }
.section { margin-top: 22px; }
.section h3 { font-size: 17px; margin: 0 0 10px; }
.evidence, .reference-box, .response-text, .method-box { white-space: pre-wrap; border-radius: 13px; padding: 15px; border: 1px solid var(--line); background: var(--surface-2); }
.reference-box { background: #f0fbf6; border-color: #bde5d3; }
.model-toolbar { display: flex; justify-content: space-between; gap: 12px; align-items: end; margin-bottom: 12px; }
.model-toolbar label { min-width: 260px; }
.score-badge { color: #fff; background: var(--primary); border-radius: 999px; padding: 7px 12px; font-weight: 800; white-space: nowrap; }
.metric-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 9px; margin: 12px 0; }
.metric { padding: 10px; border: 1px solid var(--line); border-radius: 11px; background: #fff; }
.metric strong { display: block; font-size: 18px; }
.metric span { color: var(--muted); font-size: 11px; }
.formula { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; overflow-x: auto; }
.token-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.token-box { padding: 12px; border: 1px solid var(--line); border-radius: 12px; }
.tokens { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.token { background: #e8ebf3; border-radius: 6px; padding: 2px 5px; font: 12px ui-monospace, monospace; }
.token.match { background: #ccefdc; color: #075b3a; }
.warning { color: var(--warn); background: #fff6e5; border: 1px solid #f0d29c; padding: 12px; border-radius: 12px; margin-top: 12px; }
footer { padding: 18px 30px 32px; color: var(--muted); text-align: center; font-size: 12px; }

@media (max-width: 900px) {
  .topbar { align-items: start; flex-direction: column; }
  .summary-grid { grid-template-columns: repeat(2, 1fr); }
  .workspace { grid-template-columns: 1fr; }
  .sidebar { position: static; max-height: 520px; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .summary-grid, .filter-row, .token-columns { grid-template-columns: 1fr; }
  .model-toolbar { align-items: stretch; flex-direction: column; }
  .model-toolbar label { min-width: 0; }
}