/* Benchmark viewer: signal tokens, selection bar, case strip, plots and study tables. */
:root {
  --sig-estimate: #39BF5E;
  --sig-true: #f3f0e8;
  --sig-target: #cec9bf;
  --sig-unsafe: #E07969;
  --sig-lambda: #901500;
  --sig-command: #AC6420;
  --sig-measured: #007CA8;
  --sig-damage: #cec9bf;
  --sig-idle: #9AA7B8;
  --font-condensed: "IBM Plex Sans Condensed", "Arial Narrow", var(--font-sans);
  --bench-bar-h: 0px;
}

.viewer-title,
.article-title { font-family: var(--font-condensed); letter-spacing: -0.01em; }
.viewer-title { font-size: clamp(1.75rem, 1.4rem + 1vw, 2.375rem); }
.article-title { font-size: clamp(2rem, 1.6rem + 1.4vw, 2.75rem); }
.report-intro:has(.viewer-intro) { padding-top: 30px; }
.viewer-intro { padding-bottom: 18px; }
.viewer-lede { max-width: 72ch; }
.data-status { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-top: 12px; }
.data-status p { margin: 0; color: var(--muted-strong); font-family: var(--font-mono); font-size: 13px; }
.data-status p[data-kind="warn"] { color: var(--warning); }
.data-status p[data-kind="busy"] { color: var(--muted); }

.report-layout.is-instrument main,
.viewer-intro .intro-copy { grid-column: 2 / 4; }

/* selection bar */
.bench-bar {
  position: sticky;
  top: 0;
  z-index: 6;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 320px);
  gap: 14px 28px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  background: var(--background);
}
.scenario-set { min-width: 0; margin: 0; padding: 0; border: 0; }
.scenario-set legend,
.field-label { display: block; margin: 0 0 6px; padding: 0; color: var(--muted-strong); font-size: 14px; }
.segmented { display: flex; flex-wrap: wrap; gap: 6px; }
.segment { position: relative; }
.segment input { position: absolute; opacity: 0; pointer-events: none; }
.segment > span { display: block; padding: 5px 10px; border: 1px solid var(--border); border-radius: var(--radius); color: var(--muted-strong); font-size: 14px; line-height: 1.35; cursor: pointer; transition: border-color 140ms ease, background-color 140ms ease; }
.segment strong { font-weight: 500; }
.segment-meta { display: block; color: var(--muted); font-family: var(--font-mono); font-size: 13px; }
.segment:hover > span { border-color: var(--muted); }
.segment input:checked + span { border-color: var(--accent); background: var(--surface-strong); color: var(--heading); }
.segment input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.scenario-set:disabled .segment > span { cursor: not-allowed; opacity: 0.5; }

.field { width: 100%; min-height: 36px; padding: 6px 8px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--foreground); font-size: 15px; }
.field:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.field:disabled { opacity: 0.5; cursor: not-allowed; }
.chip-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.chip {
  min-height: 32px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--muted-strong);
  font-size: 14px;
  line-height: 1.3;
  cursor: pointer;
  transition: border-color 140ms ease, color 140ms ease;
}
.chip:hover { border-color: var(--muted); color: var(--foreground); }
.chip[aria-pressed="true"] { border-color: var(--accent); background: var(--surface-strong); color: var(--heading); }
.chip:disabled { opacity: 0.45; cursor: not-allowed; }
.chip:focus-visible,
.case-button:focus-visible,
.link-button:focus-visible,
.sort-button:focus-visible,
.trace-details summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* sections */
.viewer-section { padding: 36px 0 44px; scroll-margin-top: calc(var(--bench-bar-h) + 16px); }
.bench-bar + .viewer-section { border-top: 0; }
.section-heading.compact { margin-bottom: 16px; }
.section-heading.compact h2 { font-size: clamp(1.5rem, 1.3rem + 0.6vw, 1.875rem); }

.plot-key { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 0 0 14px; padding: 0; list-style: none; color: var(--muted-strong); font-size: 13px; }
.plot-key li { display: inline-flex; align-items: center; gap: 8px; }
.plot-key svg { flex: 0 0 28px; width: 28px; height: 10px; }
.key-estimate { stroke: var(--sig-estimate); stroke-width: 2.5; }
.key-true { stroke: var(--sig-true); stroke-width: 2; }
.key-target { stroke: var(--sig-target); stroke-width: 1.6; stroke-dasharray: 5 3; }
.key-threshold { stroke: var(--sig-unsafe); stroke-width: 2; stroke-dasharray: 1.5 3; stroke-linecap: round; }
.key-tape { fill: var(--sig-unsafe); }
.key-damage { fill: rgb(206 201 191 / 22%); }
.key-idle { fill: rgb(154 167 184 / 14%); stroke: var(--sig-idle); stroke-dasharray: 1 2; }

/* case strip */
.case-strip { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 18px; margin: 0 0 14px; }
.case-group { min-width: 0; }
.case-group-title { margin: 0 0 6px; color: var(--muted-strong); font-family: var(--font-condensed); font-size: 14px; font-weight: 500; }
.case-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
.case-button {
  display: grid;
  align-content: start;
  gap: 2px;
  min-width: 0;
  padding: 8px 9px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--muted-strong);
  font-size: 13px;
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
  transition: border-color 140ms ease, background-color 140ms ease;
}
.case-button:hover { border-color: var(--muted); }
.case-button[aria-pressed="true"] { border-color: var(--accent); background: var(--surface-strong); }
.case-id { color: var(--heading); font-family: var(--font-condensed); font-size: 16px; font-weight: 600; }
.case-desc { font-family: var(--font-condensed); font-size: 14px; }
.case-seed { color: var(--muted); font-family: var(--font-mono); font-size: 13px; }
.case-metrics { display: flex; flex-wrap: wrap; align-items: center; gap: 0 8px; margin-top: 2px; color: var(--foreground); font-family: var(--font-mono); font-size: 13px; }
.tape-mark { display: inline-block; width: 14px; height: 4px; background: var(--border); }
.tape-mark.is-hit { background: var(--sig-unsafe); }
.case-button.is-fixed .tape-mark.is-hit { background: rgb(224 121 105 / 50%); }

.matrix-host { min-height: 600px; }
.matrix-empty { margin: 0; padding: 22px 18px; color: var(--warning); font-size: 15px; }
.jump-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 16px; }
.jump-label { margin-right: 4px; color: var(--muted-strong); font-size: 14px; }

/* case detail */
.detail-workbench { grid-template-columns: minmax(0, 1fr) 240px; }
.detail-host { min-height: 700px; }
.signal-host { min-height: 340px; }
.is-instrument .plot-controls { top: calc(var(--bench-bar-h) + 16px); }
.plot-controls .field-label { margin-top: 18px; }
.plot-controls > .field-label:first-child { margin-top: 0; }
.plot-controls .control-label { margin-top: 14px; }
.window-controls { display: flex; flex-wrap: wrap; gap: 6px; }
.window-controls .field-label { width: 100%; margin-bottom: 0; }
.chip.is-reset { border-style: dashed; }
.download-list { display: grid; justify-items: start; gap: 6px; font-size: 14px; }
.download-list a[hidden] { display: none; }
.link-button { padding: 0; border: 0; background: none; color: var(--foreground); font-size: 14px; text-align: left; text-decoration: underline; text-decoration-color: #706e66; text-underline-offset: 3px; cursor: pointer; }
.link-button:hover { text-decoration-color: var(--accent); }

.metric-table { margin-top: 24px; }
.metric-table caption,
.study-table caption { padding: 0 0 8px; caption-side: top; color: var(--muted-strong); font-size: 14px; text-align: left; }
tbody th[scope="row"] { color: var(--foreground); font-size: 15px; font-weight: 500; }
.delta-row th[scope="row"],
.delta-row td { color: var(--muted); }
.metric-defs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 24px; margin: 16px 0 0; font-size: 14px; }
.metric-defs div { display: grid; grid-template-columns: 76px 1fr; gap: 8px; }
.metric-defs dt { color: var(--accent-strong); font-family: var(--font-mono); }
.metric-defs dd { margin: 0; color: var(--muted-strong); }

.trace-details summary { padding: 6px 0 12px; color: var(--heading); font-size: 17px; font-weight: 500; cursor: pointer; }

/* articles and tables */
.note .chip { margin-top: 14px; }
.mono { font-size: 15px; }
.table-tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); align-items: end; gap: 10px 16px; margin-bottom: 10px; }
.check { display: inline-flex; align-items: center; gap: 8px; min-height: 36px; color: var(--muted-strong); font-size: 14px; }
.check input { width: 16px; height: 16px; accent-color: var(--accent); }
.study-shell { max-height: 70vh; overflow: auto; }
.study-table th,
.study-table td { padding: 8px 10px; font-size: 14px; }
.study-table thead th { position: sticky; top: 0; z-index: 1; background: var(--background); }
.sort-button { padding: 0; border: 0; background: none; color: inherit; font: inherit; text-align: inherit; cursor: pointer; }
th[aria-sort="ascending"] .sort-button::after { content: " ↑"; color: var(--accent-strong); }
th[aria-sort="descending"] .sort-button::after { content: " ↓"; color: var(--accent-strong); }
.muted-cell { color: var(--muted); font-size: 13px; }
.download-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; margin: 0; padding: 0; list-style: none; }
.download-grid li { padding: 12px 0; border-top: 1px solid var(--border); }
.download-grid a { font-family: var(--font-mono); font-size: 15px; }
.download-grid span { display: block; color: var(--muted); font-size: 14px; }
.run-index td { white-space: nowrap; }
.run-index a { font-family: var(--font-mono); font-size: 13px; }
.list-title { margin: 26px 0 8px; font-size: 18px; }
.plain-list { margin: 0; padding-left: 20px; color: var(--muted-strong); font-size: 15px; }
.plain-list li { margin: 6px 0; }
.source-detail { color: var(--muted); font-size: 14px; }

@media (max-width: 1180px) {
  .report-layout.is-instrument main,
  .viewer-intro .intro-copy { grid-column: 2; }
  .case-strip { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .bench-bar { grid-template-columns: 1fr; }
  .detail-workbench { grid-template-columns: 1fr; }
  .metric-defs { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .bench-bar { position: static; }
  .viewer-section { scroll-margin-top: 16px; }
  .case-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .download-grid { grid-template-columns: 1fr; }
  .detail-host { min-height: 640px; }
}