/* nav-3way dashboard — neutral, document-grade.
   Near-monochrome canvas; color encodes ARM IDENTITY only (never quality).
   One text face + one mono. No cards/shadows/gradients/pills. */

:root {
  --ink: #1a1a1a;
  --ink-soft: #555;
  --ink-faint: #888;
  --rule: #e3e1dc;
  --rule-strong: #cfccc4;
  --paper: #fbfaf7;
  --paper-2: #f3f1ec;
  /* arm identity — Okabe–Ito, colorblind-safe, NOT traffic-light */
  --baseline: #0072b2;
  --grove: #e69f00;
  --lsp: #009e73;
  --mono: ui-monospace, "IBM Plex Mono", "SF Mono", Menlo, monospace;
  --sans: system-ui, -apple-system, "IBM Plex Sans", Segoe UI, Roboto, sans-serif;
}
/* dark mode — truly neutral warm grey, NOT black (§9). Tokens shared between the
   OS-auto path and the explicit toggle. Explicit data-theme always wins over the
   media query so the in-page switch can override the OS preference (T3.2). */
:root[data-theme="dark"] {
  --ink:#e8e6e1; --ink-soft:#b3b0a8; --ink-faint:#8a877f; --rule:#34322d;
  --rule-strong:#46443d; --paper:#1b1a17; --paper-2:#232220;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) { --ink:#e8e6e1; --ink-soft:#b3b0a8; --ink-faint:#8a877f; --rule:#34322d;
          --rule-strong:#46443d; --paper:#1b1a17; --paper-2:#232220; }
}

* { box-sizing: border-box; }
/* a11y (T3.6): skip link, visible focus ring, no-JS notice */
.skip-link { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--paper);
             padding: .5rem .8rem; z-index: 100; }
.skip-link:focus { left: .5rem; top: .5rem; border-bottom: 0; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.noscript-note { border: 1px solid var(--rule-strong); background: var(--paper-2); padding: .8rem 1rem;
                 font-size: .85rem; color: var(--ink-soft); margin: 0 0 1.4rem; }
html { font-size: 15px; }
body {
  margin: 0; color: var(--ink); background: var(--paper);
  font-family: var(--sans); line-height: 1.5;
  font-variant-numeric: tabular-nums;
}
a { color: inherit; text-decoration: none; border-bottom: 1px solid var(--rule-strong); }
a:hover { border-bottom-color: var(--ink); }
code, .mono { font-family: var(--mono); font-size: 0.86em; }

.wrap { max-width: 1060px; margin: 0 auto; padding: 2.2rem 1.4rem 5rem; }
header.masthead { border-bottom: 1px solid var(--rule-strong); padding-bottom: 1rem; margin-bottom: 1.4rem; position: relative; }
/* theme switch — top-right of the masthead, flat hairline buttons */
.theme-switch { position: absolute; top: 0; right: 0; display: flex; gap: .15rem; }
.theme-switch button { font-family: var(--sans); font-size: .72rem; background: none; border: 1px solid var(--rule-strong);
                       color: var(--ink-faint); padding: .12rem .45rem; cursor: pointer; }
.theme-switch button:hover { color: var(--ink-soft); }
.theme-switch button[aria-pressed="true"] { color: var(--ink); border-color: var(--ink); }
.masthead h1 { font-size: 1.35rem; font-weight: 600; margin: 0 0 .2rem; letter-spacing: -0.01em; }
.masthead .sub { color: var(--ink-soft); font-size: .92rem; max-width: 70ch; }
.provenance { color: var(--ink-faint); font-size: .78rem; margin-top: .6rem; font-family: var(--mono); }

section { margin: 2.2rem 0; }
h2 { font-size: .82rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em;
     color: var(--ink-soft); border-bottom: 1px solid var(--rule); padding-bottom: .35rem; margin: 0 0 1rem; }
.note { color: var(--ink-soft); font-size: .85rem; max-width: 74ch; }
.caveat { color: var(--ink-faint); font-size: .8rem; font-style: italic; }

/* arm legend */
.legend { display: flex; gap: 1.2rem; flex-wrap: wrap; font-size: .85rem; margin: .4rem 0 0; }
.legend .swatch { display: inline-block; width: .7rem; height: .7rem; margin-right: .35rem; vertical-align: baseline; }
.swatch.baseline { background: var(--baseline); } .swatch.grove { background: var(--grove); } .swatch.lsp { background: var(--lsp); }

/* toggles */
.toggle { display: inline-flex; align-items: center; gap: .4rem; font-size: .82rem; color: var(--ink-soft); margin-bottom: .6rem; cursor: pointer; }

/* filter bar */
.filters { display: flex; gap: 1.4rem; flex-wrap: wrap; align-items: center; font-size: .85rem; }
.filters label { color: var(--ink-faint); margin-right: .4rem; }
.filters select { font-family: var(--sans); font-size: .85rem; padding: .2rem .4rem; background: var(--paper); color: var(--ink); border: 1px solid var(--rule-strong); }
.armtoggle #f-arms { display: inline-flex; gap: .7rem; }
.armchk { display: inline-flex; align-items: center; gap: .25rem; cursor: pointer; color: var(--ink-soft); }
.armchk .swatch { display: inline-block; width: .7rem; height: .7rem; }
.armchk input { margin: 0; cursor: pointer; }

/* coverage grid */
table.coverage { border-collapse: collapse; font-size: .82rem; }
table.coverage th { font-weight: 500; color: var(--ink-soft); text-align: left; padding: .25rem .5rem; }
table.coverage th.rung { text-align: center; cursor: pointer; }
table.coverage td { padding: .18rem .4rem; border-top: 1px solid var(--rule); }
td.repo { color: var(--ink-soft); cursor: pointer; white-space: nowrap; }
td.repo:hover { color: var(--ink); }
.cellmark { display: inline-flex; gap: 2px; cursor: pointer; padding: 2px; }
.seg { width: 11px; height: 11px; display: inline-block; border: 1px solid var(--rule-strong); }
.seg.harvested.baseline { background: var(--baseline); border-color: var(--baseline); }
.seg.harvested.grove { background: var(--grove); border-color: var(--grove); }
.seg.harvested.lsp { background: var(--lsp); border-color: var(--lsp); }
.seg.pending { background: var(--paper-2); }
.seg.blocked { background: repeating-linear-gradient(45deg, var(--paper-2), var(--paper-2) 2px, var(--ink-faint) 2px, var(--ink-faint) 3px); }
/* DNF: harvested-but-no-clean-result — arm-colored border, hatched fill so it
   reads as "ran, didn't land" without using a good/bad hue. */
.seg.dnf.baseline { border-color: var(--baseline); }
.seg.dnf.grove { border-color: var(--grove); }
.seg.dnf.lsp { border-color: var(--lsp); }
.seg.dnf { background: repeating-linear-gradient(45deg, transparent, transparent 2px, var(--ink-faint) 2px, var(--ink-faint) 3px); }
/* judged overlay: a small ink tick at the segment's foot */
.seg.judged { box-shadow: inset 0 -3px 0 -1px var(--ink); }
/* DNF/incomplete toggle off: hold the slot but blank the status mark */
.seg.omitted { background: none; border-style: dotted; border-color: var(--rule); box-shadow: none; }
.cellmark.active { outline: 2px solid var(--ink); outline-offset: 1px; }

/* chart */
.figure { border: 1px solid var(--rule); padding: .8rem 1rem 1.2rem; background: var(--paper); }
.figure figcaption { font-size: .78rem; color: var(--ink-faint); margin-top: .5rem; }

/* metric small-multiples: one row (family) per figure, stacked */
.metrics-legend { margin: .3rem 0 .8rem; }
#metrics-grid { display: flex; flex-direction: column; gap: 1rem; }
.metric-family { padding: .7rem 1rem 1rem; overflow-x: auto; }
.metric-family .mf-label { font-family: var(--sans); font-size: .92rem; font-weight: 600;
                           color: var(--ink); margin: 0 0 .3rem; }
.metric-family .mf-cap { font-size: .76rem; color: var(--ink-faint); margin-top: .4rem; }

/* detail / compare */
.detail { border: 1px solid var(--rule-strong); padding: 1.1rem 1.2rem; background: var(--paper); }
.detail .prompt { font-size: .9rem; color: var(--ink-soft); border-left: 2px solid var(--rule-strong); padding-left: .8rem; margin: .6rem 0 1rem; }
.detail .genesis { font-size: .78rem; color: var(--ink-faint); font-style: italic; margin: .4rem 0 .3rem; }
.detail .prompt-text { font-family: var(--sans); font-size: .86rem; line-height: 1.5; color: var(--ink); white-space: pre-wrap;
                       background: var(--paper-2); border-left: 2px solid var(--ink-faint); padding: .7rem .9rem; margin: 0 0 1.2rem; }
.spark { margin-top: .5rem; border-top: 1px solid var(--rule); padding-top: .35rem; }
.spark-h { display: flex; justify-content: space-between; align-items: baseline; }
.spark-h .k { color: var(--ink-faint); font-size: .82rem; }
.spark-turns { font-family: var(--mono); font-size: .72rem; color: var(--ink-faint); }
.spark-plot { min-height: 62px; }
.spark-prov { font-size: .68rem; color: var(--ink-faint); margin-top: .1rem; }
.spark-prov code { font-size: .66rem; }
.tools { margin-top: .6rem; border-top: 1px dashed var(--rule-strong); padding-top: .3rem; }
.tools-h { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-faint); margin-bottom: .2rem; }
.metricrow .v.low { font-weight: 600; }
.lowtag { font-family: var(--sans); font-size: .68rem; font-style: italic; color: var(--ink-faint); font-weight: 400; }
.armcols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.armcol h4 { margin: 0 0 .4rem; font-size: .9rem; display: flex; align-items: center; gap: .4rem; }
.armcol .bar { width: .6rem; height: .6rem; display: inline-block; }
.metricrow { display: flex; justify-content: space-between; font-size: .82rem; border-top: 1px solid var(--rule); padding: .2rem 0; }
.metricrow .k { color: var(--ink-faint); }
.metricrow .v { font-family: var(--mono); }
.citecheck { font-size: .8rem; margin-top: .4rem; color: var(--ink-soft); border-top: 1px dashed var(--rule-strong); padding-top: .3rem; }
.citecheck .k { color: var(--ink-faint); } .citecheck .v { font-family: var(--mono); }
.judge { font-size: .82rem; margin-top: .5rem; }
.judge .score { font-family: var(--mono); }
.verdict { font-size: .8rem; color: var(--ink-soft); margin-top: .3rem; max-height: 7.5rem; overflow: auto; }
.keyrev { font-size: .78rem; color: var(--ink); background: var(--paper-2); border-left: 2px solid var(--ink-faint); padding: .4rem .6rem; margin-top: .5rem; }
.flag { font-family: var(--mono); font-size: .7rem; color: var(--ink-faint); border: 1px solid var(--rule-strong); padding: 0 .3rem; margin-left: .3rem; }

/* methodology & provenance (§10, T3.3) */
.meth-h { font-size: .82rem; font-weight: 600; color: var(--ink); margin: 1.4rem 0 .3rem; }
table.meth-price { border-collapse: collapse; font-size: .82rem; margin: .4rem 0; }
table.meth-price th { text-align: left; font-weight: 600; color: var(--ink-soft); padding: .25rem 1.4rem .25rem 0; border-bottom: 1px solid var(--rule); }
table.meth-price td { padding: .2rem 1.4rem .2rem 0; border-top: 1px solid var(--rule); }
table.meth-price td.mono { text-align: right; }
.meth-sources { margin: .4rem 0; display: grid; grid-template-columns: auto 1fr; gap: .2rem 1rem; font-size: .82rem; }
.meth-sources dt { margin: 0; }
.meth-sources dt code { font-size: .78rem; }
.meth-sources dd { margin: 0; color: var(--ink-soft); }
.repro { background: var(--paper-2); border-left: 2px solid var(--ink-faint); padding: .7rem .9rem; margin: .4rem 0 .3rem;
         font-family: var(--mono); font-size: .78rem; line-height: 1.5; white-space: pre-wrap; overflow-x: auto; color: var(--ink); }

/* free cell-vs-cell compare (§8, T2.3) */
.fc-pickers { display: flex; gap: 1.4rem; flex-wrap: wrap; align-items: center; font-size: .85rem; margin-bottom: 1rem; }
.fc-pickers label { color: var(--ink-faint); margin-right: .4rem; }
.fc-pickers select { font-family: var(--mono); font-size: .82rem; padding: .2rem .4rem; background: var(--paper); color: var(--ink); border: 1px solid var(--rule-strong); }
table.fc-metrics { border-collapse: collapse; font-size: .82rem; }
table.fc-metrics th { text-align: left; font-weight: 600; padding: .25rem .8rem .25rem 0; }
table.fc-metrics th .bar { width: .6rem; height: .6rem; display: inline-block; }
table.fc-metrics td { padding: .2rem .8rem .2rem 0; border-top: 1px solid var(--rule); }
table.fc-metrics .fc-k { color: var(--ink-faint); }
table.fc-metrics .fc-v { font-family: var(--mono); }

/* spine-coverage strip (§8, T2.2): aligned per-arm Full/Partial/Miss verdict */
.spine { margin-top: 1.2rem; border-top: 1px solid var(--rule); padding-top: .7rem; }
.spine-h { font-size: .82rem; color: var(--ink-soft); margin-bottom: .5rem; }
.spine-row { display: grid; gap: .8rem; }
.spine-cell { border: 1px solid var(--rule); padding: .5rem .7rem; background: var(--paper); }
.spine-arm { font-size: .85rem; font-weight: 600; display: flex; align-items: center; gap: .4rem; }
.spine-arm .bar { width: .6rem; height: .6rem; display: inline-block; }
.spine-cov { font-size: .92rem; margin-top: .35rem; color: var(--ink); }
.spine-cov .cov-glyph { font-size: 1rem; color: var(--ink-soft); }
.spine-score { font-family: var(--mono); font-size: .76rem; color: var(--ink-faint); margin-top: .2rem; }
.spine-cap { display: block; margin-top: .5rem; }

/* side-by-side compare (§8): parallel transcript panes for one locked cell */
.compare { margin-top: 1.4rem; border-top: 1px solid var(--rule-strong); padding-top: .8rem; }
.compare-bar { display: flex; align-items: center; gap: 1.2rem; }
.compare-toggle { font-family: var(--sans); font-size: .82rem; background: none; border: 1px solid var(--rule-strong);
                  color: var(--ink-soft); padding: .25rem .7rem; cursor: pointer; }
.compare-toggle:hover { color: var(--ink); border-color: var(--ink); }
.compare-sync { margin: 0; }
.compare-panes { display: grid; gap: .8rem; margin-top: .8rem; }
.cmp-pane { border: 1px solid var(--rule); background: var(--paper); display: flex; flex-direction: column; min-width: 0; }
.cmp-head { font-size: .85rem; font-weight: 600; display: flex; align-items: center; gap: .4rem;
            border-bottom: 1px solid var(--rule); padding: .4rem .6rem; position: sticky; top: 0; background: var(--paper); }
.cmp-head .bar { width: .6rem; height: .6rem; display: inline-block; }
.cmp-head .cmp-turns { margin-left: auto; font-family: var(--mono); font-size: .72rem; color: var(--ink-faint); font-weight: 400; }
.cmp-scroll { max-height: 60vh; overflow: auto; padding: .6rem .8rem; font-size: .82rem; line-height: 1.45; word-break: break-word; }
.cmp-scroll pre { white-space: pre-wrap; word-break: break-word; font-family: var(--mono); font-size: .76rem; background: var(--paper-2); padding: .5rem .6rem; }
.cmp-scroll table { border-collapse: collapse; }
.cmp-scroll td, .cmp-scroll th { border: 1px solid var(--rule); padding: .15rem .4rem; font-size: .78rem; }
.cmp-scroll h1, .cmp-scroll h2, .cmp-scroll h3 { font-size: .9rem; text-transform: none; letter-spacing: 0; border: 0; color: var(--ink); }

/* transcript modal */
.tx-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.35); display: none; }
.tx-overlay.open { display: block; }
.tx-panel { position: fixed; inset: 3vh 4vw; background: var(--paper); border: 1px solid var(--rule-strong);
            overflow: auto; padding: 1.6rem 2rem; }
.tx-panel .close { float: right; cursor: pointer; border: 1px solid var(--rule-strong); padding: .1rem .5rem;
                    background: none; color: var(--ink-soft); font-family: var(--sans); font-size: .82rem; }
.tx-panel .close:hover { color: var(--ink); border-color: var(--ink); }
.tx-panel { font-size: .9rem; }
.tx-panel pre { white-space: pre-wrap; word-break: break-word; font-family: var(--mono); font-size: .82rem; }
.tx-panel table { border-collapse: collapse; }
.tx-panel td, .tx-panel th { border: 1px solid var(--rule); padding: .2rem .5rem; font-size: .82rem; }

/* transcript readable/raw toggle */
.tx-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
           border-bottom: 1px solid var(--rule); padding-bottom: .5rem; margin-bottom: .8rem; }
.tx-title { font-size: .9rem; font-weight: 600; }
.tx-meta { font-family: var(--mono); font-size: .76rem; color: var(--ink-faint); margin-top: .2rem; }
.tx-toggle { display: flex; gap: .2rem; }
.tx-toggle button { font-family: var(--sans); font-size: .78rem; background: none; border: 1px solid var(--rule-strong);
                    color: var(--ink-soft); padding: .2rem .6rem; cursor: pointer; }
.tx-toggle button[aria-pressed="true"] { color: var(--ink); border-color: var(--ink); }
.tx-toggle button:disabled { opacity: .4; cursor: not-allowed; }

/* raw stream-json event list (lazy-expand per event) */
.rawlist .rawev { border-top: 1px solid var(--rule); }
.rawlist summary { font-family: var(--mono); font-size: .78rem; color: var(--ink-soft);
                   padding: .25rem .2rem; cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rawlist summary:hover { color: var(--ink); }
.rawlist .rawev[open] summary { color: var(--ink); }
.rawlist pre { background: var(--paper-2); padding: .6rem .8rem; margin: .2rem 0 .6rem; max-height: 60vh; overflow: auto; }

/* file:line cite links into the pinned GitHub blob */
a.cite { font-family: var(--mono); font-size: .92em; border-bottom: 1px dotted var(--rule-strong); white-space: nowrap; }
a.cite:hover { border-bottom: 1px solid var(--ink); }

/* subagent nested sub-trails */
.subagents { margin-top: 1.4rem; border-top: 1px solid var(--rule-strong); padding-top: .8rem; }
.subagents .sub-h { font-size: .82rem; color: var(--ink-soft); margin-bottom: .5rem; }
.subagent { border-left: 2px solid var(--rule-strong); padding-left: .8rem; margin: .4rem 0; }
.subagent > summary { font-family: var(--mono); font-size: .8rem; color: var(--ink-soft); cursor: pointer; padding: .2rem 0; }
.subagent[open] > summary { color: var(--ink); }
.sub-body { margin: .4rem 0 .6rem; }
.trail .t-reason { font-size: .85rem; color: var(--ink); margin: .35rem 0; white-space: pre-wrap; }
.trail .t-tool { font-family: var(--mono); font-size: .78rem; color: var(--ink-soft); margin: .2rem 0; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }