:root {
  --bg: #eef3f7;
  --bg-2: #e4ebf2;
  --ink: #15202b;
  --muted: #5a6a7a;
  --line: rgba(21, 32, 43, 0.12);
  --card: rgba(255, 255, 255, 0.88);
  --caption: #b42318;
  --caption-soft: #fdeceb;
  --token: #0b6e4f;
  --token-soft: #e3f5ee;
  --hit: #0f766e;
  --noise: #94a3b8;
  --miss: #c2410c;
  --shadow: 0 18px 50px rgba(21, 32, 43, 0.08);
  --radius: 18px;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "DM Sans", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(1100px 560px at 8% -8%, #cfe8df 0%, transparent 55%),
    radial-gradient(900px 480px at 100% 0%, #c9daf0 0%, transparent 52%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  min-height: 100vh;
  line-height: 1.5;
}

.page {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 3rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
}
.back {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
}
.back:hover { color: var(--token); }
.topbar-meta { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.pill {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.55);
  border: 1px solid var(--line);
}
.pill.muted { color: var(--muted); }

.hero {
  padding: 0.5rem 0 1.5rem;
}
.eyebrow {
  margin: 0 0 0.55rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 600;
}
.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
}
.hero .vs {
  color: var(--muted);
  font-weight: 500;
  font-style: italic;
}
.lede {
  max-width: 46rem;
  margin: 0.9rem 0 1.25rem;
  color: var(--muted);
  font-size: 1.05rem;
}
.overall {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
}
.stat label {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.stat strong {
  font-size: 1.55rem;
  letter-spacing: -0.03em;
}
.stat.caption strong { color: var(--caption); }
.stat.token strong { color: var(--token); }

.picker { margin: 1.5rem 0 1rem; }
.picker-head h2 { margin: 0 0 0.25rem; font-size: 1.15rem; }
.picker-head p { margin: 0 0 0.9rem; color: var(--muted); font-size: 0.95rem; }
.q-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}
.q-btn {
  text-align: left;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.72);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.q-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(15, 92, 76, 0.35);
}
.q-btn.active {
  border-color: var(--token);
  box-shadow: 0 0 0 3px rgba(15, 92, 76, 0.12);
  background: #fff;
}
.q-btn .row {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
}
.q-btn .title {
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.35;
}
.q-btn .scores {
  margin-top: 0.55rem;
  display: flex;
  gap: 0.55rem;
  font-family: var(--mono);
  font-size: 0.72rem;
}
.q-btn .scores .c { color: var(--caption); }
.q-btn .scores .t { color: var(--token); }

.active-q { margin-top: 1.25rem; }
.q-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  padding: 1.2rem 1.3rem 1.3rem;
  box-shadow: var(--shadow);
}
.q-card-top {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.5rem;
}
.qid, .risk {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
}
.risk.high { background: #fff1e8; color: var(--caption); border-color: rgba(154,52,18,0.2); }
.risk.medium { background: #fff8e8; color: #92400e; }
.risk.low { background: #eef6ff; color: #1e3a5f; }
.q-card h2 {
  margin: 0;
  font-size: clamp(1.25rem, 2.5vw, 1.7rem);
  letter-spacing: -0.02em;
}
.why {
  margin: 0.7rem 0 1rem;
  color: var(--muted);
}
.q-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}
.q-meta label {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
}
.q-meta strong {
  font-size: 1rem;
  word-break: break-all;
}
.delta-bar {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}
.meter {
  border-radius: 12px;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
}
.meter.caption { background: var(--caption-soft); }
.meter.token { background: var(--token-soft); }
.meter .lab {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  margin-bottom: 0.35rem;
}
.meter .track {
  height: 8px;
  background: rgba(255,255,255,0.7);
  border-radius: 999px;
  overflow: hidden;
}
.meter .fill {
  height: 100%;
  border-radius: 999px;
  width: 0;
  transition: width 0.45s ease;
}
.meter.caption .fill { background: var(--caption); }
.meter.token .fill { background: var(--token); }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1rem 0 0.85rem;
  color: var(--muted);
  font-size: 0.88rem;
}
.swatch {
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 3px;
  margin-right: 0.35rem;
  vertical-align: -1px;
}
.swatch.hit { background: var(--hit); }
.swatch.noise { background: var(--noise); }
.swatch.miss { background: var(--miss); }

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}
.panel {
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  min-width: 0;
}
.panel.caption-panel { border-top: 4px solid var(--caption); }
.panel.token-panel { border-top: 4px solid var(--token); }
.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 0.85rem;
}
.panel-head h3 {
  margin: 0;
  font-size: 1.05rem;
}
.panel-head p {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}
.badge {
  font-family: var(--mono);
  font-size: 0.75rem;
  white-space: nowrap;
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
}
.kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
  margin-bottom: 0.9rem;
}
.kpi {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.55rem 0.6rem;
}
.kpi span {
  display: block;
  font-size: 0.7rem;
  color: var(--muted);
}
.kpi b { font-size: 1rem; }
.section-label {
  margin: 0.2rem 0 0.55rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.45rem;
}
.tile {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  border: 2px solid transparent;
  background: #d7e0ea;
  aspect-ratio: 1;
}
.tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.tile.hit { border-color: var(--hit); }
.tile.noise { border-color: rgba(148,163,184,0.55); opacity: 0.88; }
.tile.miss { border-color: var(--miss); }
.tile .rank {
  position: absolute;
  left: 4px;
  top: 4px;
  font-family: var(--mono);
  font-size: 0.65rem;
  background: rgba(15, 20, 28, 0.72);
  color: #fff;
  padding: 0.1rem 0.3rem;
  border-radius: 4px;
}
.tile .tag {
  position: absolute;
  right: 4px;
  bottom: 4px;
  font-size: 0.62rem;
  font-weight: 600;
  padding: 0.1rem 0.3rem;
  border-radius: 4px;
  background: rgba(255,255,255,0.9);
}
.tile.hit .tag { color: var(--hit); }
.tile.noise .tag { color: #64748b; }
.tile.miss .tag { color: var(--miss); }
.empty-miss {
  border: 1px dashed rgba(15, 92, 76, 0.35);
  border-radius: 12px;
  padding: 0.85rem;
  color: var(--token);
  background: rgba(229, 244, 239, 0.55);
  font-size: 0.9rem;
}
.fail-note {
  border: 1px dashed rgba(154, 52, 18, 0.35);
  border-radius: 12px;
  padding: 0.85rem;
  color: var(--caption);
  background: rgba(255, 241, 232, 0.7);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.foot {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}
.foot a { color: var(--token); }

.mode-tabs, .subtabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 0 0 1rem;
}
.mode-tab, .subtab {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.7);
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--ink);
}
.mode-tab.active, .subtab.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.loss-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.85rem;
  margin-bottom: 0.65rem;
}
.loss-card .loss-top {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 0.75rem;
  align-items: start;
}
.loss-card img {
  width: 88px;
  height: 88px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--line);
}
.loss-card .cap-text {
  font-size: 0.86rem;
  color: var(--muted);
  margin: 0.35rem 0 0.5rem;
}
.cue-row { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.cue {
  font-family: var(--mono);
  font-size: 0.68rem;
  padding: 0.18rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--line);
}
.cue.ok { background: var(--token-soft); color: var(--token); }
.cue.bad { background: var(--caption-soft); color: var(--caption); }
.verdict {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--line);
}
.verdict.ok { background: var(--token-soft); color: var(--token); }
.verdict.bad { background: var(--caption-soft); color: var(--caption); }
.pair-imgs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-top: 0.7rem;
}
.pair-imgs .slot {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.55rem;
}
.pair-imgs img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}
.pair-imgs .slot label {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

@media (max-width: 900px) {
  .overall, .q-list, .compare, .q-meta, .delta-bar, .pair-imgs { grid-template-columns: 1fr; }
  .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page { width: min(1180px, calc(100% - 1.2rem)); }
  .loss-card .loss-top { grid-template-columns: 1fr; }
}