:root {
  --bg: #fafafa;
  --card-bg: #ffffff;
  --border: #e5e7eb;
  --text: #1f2937;
  --muted: #6b7280;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  --method-cot: #fb5607;
  --method-agent: #3a86ff;
  --status-ok: #2a9d8f;
  --status-bad: #e63946;
  --code-bg: #f6f8fa;
  --code-border: #e1e4e8;
  --hover: #f3f4f6;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto,
               Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}
a { color: var(--method-agent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1280px; margin: 0 auto; padding: 14px 24px 80px; }

header.site-header {
  background: linear-gradient(180deg, #1a1a2e 0%, #25274d 100%);
  color: #fff;
  padding: 28px 24px 26px;
  margin-bottom: 14px;
}
header.site-header .container { padding-top: 0; padding-bottom: 0; }
header.site-header h1 {
  margin: 0 0 6px;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
nav.site-nav {
  margin-top: 14px;
  display: flex;
  gap: 4px;
}
nav.site-nav .nav-link {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: #c7c8e8;
  background: rgba(255,255,255,0.06);
  text-decoration: none;
  transition: background 0.12s ease, color 0.12s ease;
}
nav.site-nav .nav-link:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
  text-decoration: none;
}
nav.site-nav .nav-link.active {
  background: #fff;
  color: #1a1a2e;
}
header.site-header p {
  margin: 0;
  color: #c7c8e8;
  font-size: 14px;
}
header.site-header .crumb {
  font-size: 13px;
  color: #9b9dca;
  margin-bottom: 8px;
}
header.site-header .crumb a { color: #c7c8e8; }
header.site-header .crumb .nav-hint {
  margin-left: 14px;
  font-size: 11.5px;
  color: #8487b5;
  letter-spacing: 0.02em;
}
header.site-header .crumb .nav-hint kbd {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  line-height: 1;
  padding: 2px 5px;
  margin: 0 1px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-bottom-width: 2px;
  border-radius: 4px;
  color: #e3e4f5;
}
@media (max-width: 720px) {
  header.site-header .crumb .nav-hint { display: none; }
}

h2 { font-size: 20px; margin: 32px 0 14px; font-weight: 600; }
h3 { font-size: 16px; margin: 22px 0 10px; font-weight: 600; }

.lede {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.lede p { margin: 0; color: #374151; }

.toggle-row {
  display: flex;
  gap: 8px;
  margin: 18px 0 12px;
  align-items: center;
  flex-wrap: wrap;
}
.toggle-row .label { color: var(--muted); font-size: 13px; margin-right: 4px; }
.toggle {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text);
}
.toggle.active {
  background: #1a1a2e;
  color: #fff;
  border-color: #1a1a2e;
}

.chart-card, .card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 18px 20px;
}
.chart-card { padding: 22px 24px; }

.chart-svg { width: 100%; height: auto; display: block; }

.dataset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 18px;
}
.ds-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 14px 16px;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: transform 0.06s ease, box-shadow 0.12s ease;
}
.ds-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.08);
  text-decoration: none;
}
.ds-card .name {
  font-weight: 600;
  font-size: 16px;
  margin-bottom: 4px;
}
.ds-card .group {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}
.ds-card .row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding: 2px 0;
}
.ds-card .row .lab { color: var(--muted); }
.ds-card .row .val { font-variant-numeric: tabular-nums; font-weight: 500; }
.delta-pos { color: var(--method-agent); font-weight: 600; }
.delta-neg { color: var(--status-bad); font-weight: 600; }
.delta-zero { color: var(--muted); font-weight: 600; }

.method-pill {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  margin-right: 4px;
  vertical-align: middle;
}
.pill-cot { background: rgba(251,86,7,0.14); color: var(--method-cot); }
.pill-agent { background: rgba(58,134,255,0.14); color: var(--method-agent); }
.pill-spcode { background: rgba(124,77,255,0.14); color: #5e35b1; }
.pill-react { background: rgba(0,150,136,0.14); color: #00796b; }
.pill-spacetools { background: rgba(194,24,91,0.14); color: #c2185b; }

/* SpaceTools step types — color-code the timeline by phase. */
.tl-step.tl-st-reasoning  { border-left: 3px solid #6c757d; }
.tl-step.tl-st-decision   { border-left: 3px solid #f59e0b; }
.tl-step.tl-st-exec       { border-left: 3px solid #c2185b; }
.tl-step.tl-st-result     { border-left: 3px solid #0891b2; }
.tl-step.tl-st-synth      { border-left: 3px solid #7c3aed; }
.tl-step.tl-st-complete,
.tl-step.tl-st-final      { border-left: 3px solid var(--status-ok); }
.tl-step.tl-st-other      { border-left: 3px solid var(--border); }
.tl-step.tl-st-reasoning  .kind { background: #6c757d; }
.tl-step.tl-st-decision   .kind { background: #f59e0b; }
.tl-step.tl-st-exec       .kind { background: #c2185b; }
.tl-step.tl-st-result     .kind { background: #0891b2; }
.tl-step.tl-st-synth      .kind { background: #7c3aed; }
.tl-step.tl-st-complete   .kind,
.tl-step.tl-st-final      .kind { background: var(--status-ok); }
.tl-step.tl-st-other      .kind { background: var(--muted); }

.group-pill {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 999px;
  background: #eef2ff;
  color: #3a3f87;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  box-shadow: var(--shadow);
}
.stat-card .lab {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.stat-card .val {
  font-size: 22px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  margin-top: 4px;
}

.filter-row {
  display: flex;
  gap: 8px;
  margin: 18px 0 8px;
  flex-wrap: wrap;
  align-items: center;
}
.filter-row input[type=search] {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 13px;
  width: 220px;
  font-family: inherit;
}
.filter-row .chip {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 999px;
  padding: 5px 11px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text);
}
.filter-row .chip.active { background: #1a1a2e; color: #fff; border-color: #1a1a2e; }
.filter-row .chip[data-q=both_right].active { background: var(--status-ok); border-color: var(--status-ok); }
.filter-row .chip[data-q=both_wrong].active { background: var(--status-bad); border-color: var(--status-bad); }
.filter-row .chip[data-q=only_agent].active { background: var(--method-agent); border-color: var(--method-agent); }
.filter-row .chip[data-q=only_cot].active { background: var(--method-cot); border-color: var(--method-cot); }

table.samples {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: 13.5px;
}
table.samples th, table.samples td {
  padding: 9px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.samples thead th {
  background: #f8fafc;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
}
table.samples tbody tr:last-child td { border-bottom: none; }
table.samples tbody tr.linked { cursor: pointer; }
table.samples tbody tr.linked td:first-child {
  box-shadow: inset 3px 0 0 var(--method-agent);
}
table.samples tbody tr.linked:hover { background: #eef4ff; }
table.samples td.chev {
  width: 18px;
  text-align: center;
  color: var(--muted);
  font-weight: 600;
  font-size: 16px;
  line-height: 1;
}
table.samples tbody tr.linked td.chev { color: var(--method-agent); }
.drill-note {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--muted);
  margin: 14px 0 6px;
}
.drill-note .swatch {
  display: inline-block;
  width: 10px;
  height: 14px;
  background: var(--method-agent);
  border-radius: 2px;
}

.highlights-section {
  margin: 22px 0 26px;
}
.highlights-section .header-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}
.highlights-section .header-row h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.highlights-section .header-row .sub {
  color: var(--muted);
  font-size: 12.5px;
}
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.hl-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--method-agent);
  border-radius: 8px;
  padding: 12px 14px;
  box-shadow: var(--shadow);
  transition: transform 0.06s ease, box-shadow 0.12s ease, background 0.12s ease;
}
.hl-card:hover {
  background: #f4f8ff;
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.08);
  text-decoration: none;
}
.hl-card .hl-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.hl-card .hl-id {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11.5px;
  color: var(--muted);
}
.hl-card .hl-q {
  font-size: 13px;
  line-height: 1.45;
  color: #374151;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
  min-height: 2.6em;
}
.hl-card .hl-pred {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 12px;
  border-top: 1px solid var(--border);
  padding-top: 8px;
}
.hl-card .hl-pred .row {
  display: flex;
  align-items: center;
  gap: 6px;
}
.hl-card .hl-pred .row .lab {
  width: 92px;
  flex-shrink: 0;
}
.hl-card .hl-pred .row .ans {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  flex-grow: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
table.samples td.q { font-family: inherit; max-width: 380px; color: #4b5563; }
table.samples td.q .preview { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
table.samples td.ans { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
table.samples td.gt { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; }
table.samples td.tick { text-align: center; font-weight: 600; width: 1px; }
table.samples td.tick.ok { color: var(--status-ok); }
table.samples td.tick.bad { color: var(--status-bad); }
table.samples td.id { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; color: var(--muted); }
.q-badge {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  white-space: nowrap;
}
.q-both_right { background: rgba(42,157,143,0.14); color: var(--status-ok); }
.q-only_agent { background: rgba(58,134,255,0.14); color: var(--method-agent); }
.q-only_cot   { background: rgba(251,86,7,0.14); color: var(--method-cot); }
.q-both_wrong { background: rgba(230,57,70,0.14); color: var(--status-bad); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 18px;
  margin-top: 18px;
}
@media (max-width: 960px) {
  .split { grid-template-columns: minmax(0, 1fr); }
}
.split > .left-stack { display: contents; }
.split > .left-stack > .baseline-pane { display: none; }
.split > .left-stack > .baseline-pane.is-on { display: contents; }

/* Agent-only mode: clicking an already-active baseline tab collapses the
   left pane and lets SpatialClaw take the full width. */
.split.agent-only { grid-template-columns: minmax(0, 1fr); }
.split.agent-only > .left-stack > .baseline-pane.is-on { display: none; }

/* Baseline tab bar — choose which baseline appears in the left column. */
/* Floating prev/next sample arrows on sample pages — fixed-position so they
   stay visible regardless of scroll depth. */
.sample-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  width: 44px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 300;
  line-height: 1;
  color: #475569;
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--border);
  border-radius: 8px;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.10);
  transition: background 0.12s ease, color 0.12s ease, transform 0.12s ease;
  user-select: none;
}
.sample-nav:hover {
  background: #ffffff;
  color: #1f2937;
  border-color: #cbd5e1;
}
.sample-nav.prev { left: 12px; }
.sample-nav.next { right: 12px; }
@media (max-width: 720px) {
  .sample-nav {
    width: 36px;
    height: 48px;
    font-size: 26px;
  }
  .sample-nav.prev { left: 4px; }
  .sample-nav.next { right: 4px; }
}

.baseline-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 18px 0 0;
  padding: 6px;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 12px;
}
.baseline-tab {
  flex: 1 1 auto;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  color: #475569;
  cursor: pointer;
  transition: all 0.12s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.baseline-tab:hover:not(.disabled) {
  background: rgba(255,255,255,0.7);
  color: #1f2937;
}
.baseline-tab.active {
  background: #ffffff;
  border-color: var(--border);
  color: #1f2937;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}
.baseline-tab.disabled {
  color: #94a3b8;
  cursor: not-allowed;
  opacity: 0.7;
}
.baseline-tab .badge-na {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(148,163,184,0.18);
  color: #64748b;
  padding: 1px 6px;
  border-radius: 999px;
}

/* Single-pass-code condensed card — one Markdown block + one code block. */
.single-pass-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.single-pass-card .label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 600;
}
.single-pass-card .body.prose {
  font-size: 13.5px;
  line-height: 1.6;
  color: #1f2937;
  white-space: pre-wrap;
}

.column {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 16px 18px;
  min-width: 0;          /* allow grid item to shrink */
  overflow-wrap: anywhere;
  word-break: break-word;
}
.column h2 {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}
.column .header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.verdict { font-size: 12.5px; }

.cot-prose {
  white-space: pre-wrap;
  word-wrap: break-word;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: #1f2937;
}
.cot-prose .boxed,
.cot-md .boxed {
  display: inline-block;
  border: 1.5px solid var(--method-cot);
  border-radius: 4px;
  padding: 1px 6px;
  background: rgba(251,86,7,0.08);
  font-weight: 600;
}

/* Markdown-rendered body for the No-tool baseline. */
.cot-md.markdown {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: #1f2937;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.cot-md.markdown > *:first-child { margin-top: 0; }
.cot-md.markdown > *:last-child { margin-bottom: 0; }
.cot-md.markdown h1,
.cot-md.markdown h2,
.cot-md.markdown h3,
.cot-md.markdown h4 {
  font-weight: 600;
  margin: 14px 0 6px;
  line-height: 1.3;
}
.cot-md.markdown h1 { font-size: 17px; }
.cot-md.markdown h2 { font-size: 15.5px; }
.cot-md.markdown h3 { font-size: 14.5px; color: #374151; }
.cot-md.markdown h4 { font-size: 14px; color: #4b5563; }
.cot-md.markdown p { margin: 8px 0; }
.cot-md.markdown ul,
.cot-md.markdown ol { margin: 8px 0 8px 4px; padding-left: 22px; }
.cot-md.markdown li { margin: 3px 0; }
.cot-md.markdown li > ul,
.cot-md.markdown li > ol { margin: 3px 0; }
.cot-md.markdown code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 3px;
  padding: 0 4px;
}
.cot-md.markdown pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 6px;
  padding: 10px 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  line-height: 1.5;
  overflow-x: auto;
  max-width: 100%;
  margin: 10px 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.cot-md.markdown pre code {
  background: transparent; border: none; padding: 0;
}
.cot-md.markdown blockquote {
  margin: 10px 0;
  padding: 4px 12px;
  border-left: 3px solid var(--border);
  color: var(--muted);
}
.cot-md.markdown table {
  border-collapse: collapse;
  margin: 10px 0;
  font-size: 13px;
  display: block;
  overflow-x: auto;
  max-width: 100%;
}
.cot-md.markdown th,
.cot-md.markdown td {
  border: 1px solid var(--border);
  padding: 4px 8px;
}
.cot-md.markdown strong { font-weight: 600; }
.cot-md.markdown em { font-style: italic; }
.cot-md.markdown hr { border: none; border-top: 1px solid var(--border); margin: 14px 0; }

.timeline { display: flex; flex-direction: column; gap: 18px; position: relative; }

.tl-group {
  background: #fff;
  border: 1px solid #cdd5e0;
  border-radius: 10px;
  margin-left: 18px;
  position: relative;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}
.tl-group::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 17px;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--method-agent);
  box-shadow: 0 0 0 3px #fff, 0 0 0 4px #cdd5e0;
}
.tl-group .group-head {
  background: linear-gradient(180deg, #eef2f9, #e6ebf5);
  border-bottom: 1px solid #cdd5e0;
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #1f2937;
}
.tl-group .group-body { padding: 0; }
.tl-sub {
  padding: 12px 14px 14px;
  border-bottom: 1px solid #eef0f4;
  border-left: 3px solid #cdd5e0;
}
.tl-sub:last-child { border-bottom: none; }
.tl-sub.tl-llm     { border-left-color: var(--method-agent); }
.tl-sub.tl-exec    { border-left-color: #f59e0b; }
.tl-sub.tl-feedback{ border-left-color: #2a9d8f; }
.tl-sub .kind {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #fff;
  background: var(--muted);
  padding: 2px 9px;
  border-radius: 999px;
  margin-bottom: 8px;
}
.tl-sub.tl-llm .kind     { background: var(--method-agent); }
.tl-sub.tl-exec .kind    { background: #f59e0b; }
.tl-sub.tl-feedback .kind{ background: #2a9d8f; }

/* Strongly differentiate Purpose / Reasoning / Next Goal / Observation /
   Decision sub-labels inside an LLM step. */
.tl-sub.tl-llm .label {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--method-agent);
  background: rgba(58, 134, 255, 0.10);
  border: 1px solid rgba(58, 134, 255, 0.30);
  padding: 3px 10px;
  border-radius: 999px;
  margin: 16px 0 8px;
}
.tl-sub.tl-llm .body.prose {
  border-left: 2px solid rgba(58, 134, 255, 0.22);
  padding-left: 12px;
  margin-left: 4px;
  margin-top: 0;
  margin-bottom: 4px;
  background: rgba(58, 134, 255, 0.025);
  border-radius: 0 4px 4px 0;
  padding-top: 6px;
  padding-bottom: 6px;
  padding-right: 8px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
  border-radius: 2px;
}
.tl-step {
  background: #fff;
  border: 1px solid var(--border);
  border-left: 4px solid var(--muted);
  border-radius: 8px;
  padding: 11px 14px 13px;
  margin-left: 18px;
  position: relative;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
.tl-step::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 18px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #fff;
  border: 2.5px solid var(--muted);
  box-sizing: border-box;
}
.tl-step.tl-plan       { border-left-color: #6f42c1; }
.tl-step.tl-plan::before    { border-color: #6f42c1; }
.tl-step.tl-llm        { border-left-color: var(--method-agent); }
.tl-step.tl-llm::before     { border-color: var(--method-agent); }
.tl-step.tl-exec       { border-left-color: #f59e0b; }
.tl-step.tl-exec::before    { border-color: #f59e0b; }
.tl-step.tl-feedback   { border-left-color: #2a9d8f; }
.tl-step.tl-feedback::before { border-color: #2a9d8f; }
.tl-step.tl-condense   { border-left-color: #94a3b8; }
.tl-step.tl-condense::before { border-color: #94a3b8; }
.tl-step.tl-answer     { border-left-color: var(--status-ok); background: #f3fbf9; }
.tl-step.tl-answer::before  { border-color: var(--status-ok); background: var(--status-ok); }
.tl-step.tl-evaluation { border-left-color: var(--status-ok); background: #f3fbf9; }
.tl-step.tl-evaluation::before { border-color: var(--status-ok); background: var(--status-ok); }
.tl-step .kind {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #fff;
  background: var(--muted);
  padding: 2px 9px;
  border-radius: 999px;
  margin-bottom: 8px;
}
.tl-step.tl-plan       .kind { background: #6f42c1; }
.tl-step.tl-llm        .kind { background: var(--method-agent); }
.tl-step.tl-exec       .kind { background: #f59e0b; }
.tl-step.tl-feedback   .kind { background: #2a9d8f; }
.tl-step.tl-condense   .kind { background: #94a3b8; }
.tl-step.tl-answer     .kind { background: var(--status-ok); }
.tl-step.tl-evaluation .kind { background: var(--status-ok); }
.tl-step .body { font-size: 13.5px; min-width: 0; }
.tl-step .body.prose { white-space: pre-wrap; word-wrap: break-word; overflow-wrap: anywhere; }
.tl-step .body.markdown {
  font-size: 13.5px;
  line-height: 1.6;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.tl-step .body.markdown > *:first-child { margin-top: 0; }
.tl-step .body.markdown > *:last-child { margin-bottom: 0; }
.tl-step .body.markdown h1,
.tl-step .body.markdown h2,
.tl-step .body.markdown h3,
.tl-step .body.markdown h4 {
  font-weight: 600;
  margin: 14px 0 6px;
  line-height: 1.3;
}
.tl-step .body.markdown h1 { font-size: 16px; }
.tl-step .body.markdown h2 { font-size: 15px; }
.tl-step .body.markdown h3 { font-size: 14px; color: #374151; }
.tl-step .body.markdown h4 { font-size: 13.5px; color: #4b5563; }
.tl-step .body.markdown p { margin: 6px 0; }
.tl-step .body.markdown ul,
.tl-step .body.markdown ol { margin: 6px 0 6px 4px; padding-left: 22px; }
.tl-step .body.markdown li { margin: 2px 0; }
.tl-step .body.markdown li > ul,
.tl-step .body.markdown li > ol { margin: 2px 0; }
.tl-step .body.markdown code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 3px;
  padding: 0 4px;
}
.tl-step .body.markdown pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 6px;
  padding: 10px 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  line-height: 1.5;
  overflow-x: auto;
  max-width: 100%;
  margin: 8px 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.tl-step .body.markdown pre code {
  background: transparent; border: none; padding: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.tl-step .body.markdown table {
  display: block;
  overflow-x: auto;
  max-width: 100%;
}
.tl-step .body.markdown blockquote {
  margin: 8px 0;
  padding: 4px 12px;
  border-left: 3px solid var(--border);
  color: var(--muted);
}
.tl-step .body.markdown table {
  border-collapse: collapse;
  margin: 8px 0;
  font-size: 12.5px;
}
.tl-step .body.markdown th,
.tl-step .body.markdown td {
  border: 1px solid var(--border);
  padding: 4px 8px;
}
.tl-step .body.markdown strong { font-weight: 600; }
.tl-step .body.markdown em { font-style: italic; }
.tl-step .body.markdown hr { border: none; border-top: 1px solid var(--border); margin: 12px 0; }
.tl-step pre.code, .tl-step pre.out, .tl-step pre.err,
.tl-sub pre.code, .tl-sub pre.out, .tl-sub pre.err,
.single-pass-card pre.code, .single-pass-card pre.out, .single-pass-card pre.err {
  margin: 6px 0 0;
  padding: 10px 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  line-height: 1.5;
  border-radius: 6px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: anywhere;
  max-width: 100%;
  min-width: 0;
}

/* Bash-terminal style for stdout (Output) and Feedback blocks. */
.tl-sub.tl-exec pre.out,
.tl-sub.tl-feedback pre.out {
  background: #1e1e1e;
  border: 1px solid #0e0e0e;
  color: #d4d4d4;
  padding: 30px 14px 12px;
  position: relative;
  border-radius: 8px;
  box-shadow: inset 0 0 0 1px #2a2a2a;
}
.tl-sub.tl-exec pre.out::before,
.tl-sub.tl-feedback pre.out::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 22px;
  background: linear-gradient(180deg, #3a3a3a, #2c2c2c);
  border-bottom: 1px solid #1a1a1a;
  border-radius: 8px 8px 0 0;
}
.tl-sub.tl-exec pre.out::after,
.tl-sub.tl-feedback pre.out::after {
  content: "";
  position: absolute;
  top: 7px;
  left: 10px;
  width: 44px;
  height: 10px;
  background:
    radial-gradient(circle at 5px 5px, #ff5f56 4px, transparent 4.5px),
    radial-gradient(circle at 20px 5px, #ffbd2e 4px, transparent 4.5px),
    radial-gradient(circle at 35px 5px, #27c93f 4px, transparent 4.5px);
}
.tl-step pre.err, .tl-sub pre.err,
.single-pass-card pre.err {
  background: rgba(230,57,70,0.06);
  border-color: rgba(230,57,70,0.3);
}

/* Bash-terminal style also applies to the single-pass card's stdout. */
.single-pass-card pre.out {
  background: #1e1e1e;
  border: 1px solid #0e0e0e;
  color: #d4d4d4;
  padding: 30px 14px 12px;
  position: relative;
  border-radius: 8px;
  box-shadow: inset 0 0 0 1px #2a2a2a;
}
.single-pass-card pre.out::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 22px;
  background: linear-gradient(180deg, #3a3a3a, #2c2c2c);
  border-bottom: 1px solid #1a1a1a;
  border-radius: 8px 8px 0 0;
}
.single-pass-card pre.out::after {
  content: "";
  position: absolute;
  top: 7px;
  left: 10px;
  width: 44px;
  height: 10px;
  background:
    radial-gradient(circle at 5px 5px, #ff5f56 4px, transparent 4.5px),
    radial-gradient(circle at 20px 5px, #ffbd2e 4px, transparent 4.5px),
    radial-gradient(circle at 35px 5px, #27c93f 4px, transparent 4.5px);
}

/* Pygments emits inline <span> tokens — make sure they wrap, too. */
.single-pass-card pre.code,
.tl-step pre.code,
.tl-sub pre.code {
  word-break: break-all;
}
.single-pass-card pre.code span,
.tl-step pre.code span,
.tl-sub pre.code span {
  white-space: pre-wrap;
  word-break: break-all;
}
.tl-step .label {
  font-size: 11.5px;
  color: var(--muted);
  margin: 8px 0 2px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tl-step .img-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0 0;
}
.tl-step .img-row img {
  max-width: 180px;
  max-height: 180px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: #fff;
}

.qa-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 16px 18px;
  margin-bottom: 14px;
}
.qa-card .label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); margin-bottom: 4px; }
.qa-card .q { font-size: 15px; line-height: 1.55; white-space: pre-wrap; }
.qa-card .keyframes { margin-bottom: 14px; }
.qa-card .keyframes .img-row { gap: 6px; }
.qa-card .keyframes .img-row img {
  max-width: 160px;
  max-height: 160px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: #fff;
}
.gt-pill {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: #eef2ff;
  color: #3a3f87;
  padding: 2px 9px;
  border-radius: 4px;
  font-size: 12.5px;
  font-weight: 600;
}

.pred-row { display: flex; gap: 18px; margin-top: 8px; flex-wrap: wrap; font-size: 13px; }
.pred-row .pred-cell { display: flex; align-items: center; gap: 6px; }
.tick-ok { color: var(--status-ok); font-weight: 700; }
.tick-bad { color: var(--status-bad); font-weight: 700; }

/* Graded score pills (MRA / continuous result samples). */
.score-pill {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11.5px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  white-space: nowrap;
  vertical-align: middle;
}
.score-pill.score-good {
  background: rgba(42, 157, 143, 0.16);
  color: var(--status-ok);
}
.score-pill.score-mid {
  background: rgba(245, 158, 11, 0.16);
  color: #b45309;
}
.score-pill.score-bad {
  background: rgba(230, 57, 70, 0.14);
  color: var(--status-bad);
}

footer.site-footer {
  margin-top: 60px;
  padding: 22px 0;
  text-align: center;
  color: var(--muted);
  font-size: 12.5px;
  border-top: 1px solid var(--border);
}

.empty-note {
  color: var(--muted);
  font-style: italic;
  font-size: 13px;
}

/* ---------- Highlights gallery ---------- */
.hl-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 18px;
  margin-top: 16px;
}
.hl-tile {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--method-agent);
  border-radius: 12px;
  padding: 16px 18px 14px;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: transform 0.06s ease, box-shadow 0.12s ease, background 0.12s ease;
  min-width: 0;
}
.hl-tile:hover {
  background: #f4f8ff;
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(0,0,0,0.08);
  text-decoration: none;
}
.hl-tile-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.hl-tile-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  min-width: 0;
}
.hl-tile-name {
  font-weight: 600;
  font-size: 14.5px;
  color: var(--text);
}
.hl-tile-model {
  font-size: 12.5px;
  color: var(--muted);
}
.hl-tile-score {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--method-agent);
  background: rgba(58,134,255,0.10);
  border-radius: 999px;
  padding: 3px 9px;
  flex-shrink: 0;
}
.hl-tile-label {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin: 4px 0 4px;
}
.hl-tile-q {
  color: #4b5563;
  font-size: 13.5px;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.hl-tile-thumbs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
/* Divider between keyframes and the Summary section. Absent when the card
   has no keyframes (no thumbs sibling for the adjacent selector to match). */
.hl-tile-thumbs + .hl-tile-label {
  border-top: 1px solid #f0f1f5;
  padding-top: 10px;
  margin-top: 8px;
}
.hl-tile-thumbs img {
  width: 110px;
  height: 78px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: #fff;
}
.hl-thumb-empty {
  font-size: 12px;
  color: var(--muted);
  font-style: italic;
  padding: 18px 12px;
  border: 1px dashed var(--border);
  border-radius: 4px;
  width: 100%;
  text-align: center;
}
.hl-tile-why {
  font-size: 13px;
  line-height: 1.5;
  color: #1f2937;
}
.hl-tile-why code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 3px;
  padding: 0 4px;
}
.hl-tile-cta {
  font-size: 12.5px;
  color: var(--method-agent);
  font-weight: 600;
  align-self: flex-end;
}

/* Pagination */
nav.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 28px;
  flex-wrap: wrap;
}
nav.pagination .page-btn {
  font: inherit;
  font-size: 13px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  min-width: 36px;
  font-variant-numeric: tabular-nums;
}
nav.pagination .page-btn:hover { background: #f3f4f6; }
nav.pagination .page-btn.active {
  background: #1a1a2e;
  color: #fff;
  border-color: #1a1a2e;
}
nav.pagination .page-btn[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
}
/* Pagination — class-based show/hide so JS can flip pages.
   Specificity: both rules are (0,2,0); later rule (is-on) wins. */
.hl-tile[data-page] { display: none; }
.hl-tile.is-on { display: flex; }


/* Pygments — Python syntax highlighting (VS theme) */
pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.py-hl .hll { background-color: #ffffcc }
.py-hl { background: #ffffff; }
.py-hl .c { color: #008000 } /* Comment */
.py-hl .err { border: 1px solid #F00 } /* Error */
.py-hl .k { color: #00F } /* Keyword */
.py-hl .ch { color: #008000 } /* Comment.Hashbang */
.py-hl .cm { color: #008000 } /* Comment.Multiline */
.py-hl .cp { color: #00F } /* Comment.Preproc */
.py-hl .cpf { color: #008000 } /* Comment.PreprocFile */
.py-hl .c1 { color: #008000 } /* Comment.Single */
.py-hl .cs { color: #008000 } /* Comment.Special */
.py-hl .ge { font-style: italic } /* Generic.Emph */
.py-hl .ges { font-weight: bold; font-style: italic } /* Generic.EmphStrong */
.py-hl .gh { font-weight: bold } /* Generic.Heading */
.py-hl .gp { font-weight: bold } /* Generic.Prompt */
.py-hl .gs { font-weight: bold } /* Generic.Strong */
.py-hl .gu { font-weight: bold } /* Generic.Subheading */
.py-hl .kc { color: #00F } /* Keyword.Constant */
.py-hl .kd { color: #00F } /* Keyword.Declaration */
.py-hl .kn { color: #00F } /* Keyword.Namespace */
.py-hl .kp { color: #00F } /* Keyword.Pseudo */
.py-hl .kr { color: #00F } /* Keyword.Reserved */
.py-hl .kt { color: #2B91AF } /* Keyword.Type */
.py-hl .s { color: #A31515 } /* Literal.String */
.py-hl .nc { color: #2B91AF } /* Name.Class */
.py-hl .ow { color: #00F } /* Operator.Word */
.py-hl .sa { color: #A31515 } /* Literal.String.Affix */
.py-hl .sb { color: #A31515 } /* Literal.String.Backtick */
.py-hl .sc { color: #A31515 } /* Literal.String.Char */
.py-hl .dl { color: #A31515 } /* Literal.String.Delimiter */
.py-hl .sd { color: #A31515 } /* Literal.String.Doc */
.py-hl .s2 { color: #A31515 } /* Literal.String.Double */
.py-hl .se { color: #A31515 } /* Literal.String.Escape */
.py-hl .sh { color: #A31515 } /* Literal.String.Heredoc */
.py-hl .si { color: #A31515 } /* Literal.String.Interpol */
.py-hl .sx { color: #A31515 } /* Literal.String.Other */
.py-hl .sr { color: #A31515 } /* Literal.String.Regex */
.py-hl .s1 { color: #A31515 } /* Literal.String.Single */
.py-hl .ss { color: #A31515 } /* Literal.String.Symbol */