:root {
  --fg: #111;
  --bg: #fafafa;
  --card: #fff;
  --border: #e5e5e5;
  --muted: #666;
  /* wasmCloud brand green — used for links + active tab + small accents.
     Chart line colors (p2/p3) intentionally stay distinct (cyan/purple)
     so they keep their meaning across charts. */
  --brand: #00bc8e;
  --brand-soft: rgba(0, 188, 142, 0.15);
  --link: var(--brand);
  --p2: #06b6d4;
  --p2-band: rgba(6, 182, 212, 0.15);
  --p3: #a855f7;
  --p3-band: rgba(168, 85, 247, 0.15);
  --grid: rgba(0, 0, 0, 0.06);
  --regress: #d4574e;
  /* gpu view: steps, the serving side and turn models (validated categorical sets). */
  --step-vendor: #2a78d6;
  --step-webgpu-native: #eb6834;
  --step-wasm: #1baf7a;
  --side-wasmcloud: #1baf7a;
  --side-native: #eb6834;
  --mem-model: #8a8a86;
  --model-1: #6250d6;
  --model-2: #eda100;
  --model-3: #e87ba4;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e5e5e5;
    --bg: #0a0a0a;
    --card: #141414;
    --border: #262626;
    --muted: #888;
    /* Brand stays the same hex in dark mode — it's brand-fixed, not theme. */
    --brand-soft: rgba(0, 188, 142, 0.20);
    --grid: rgba(255, 255, 255, 0.07);
    --p2-band: rgba(6, 182, 212, 0.20);
    --p3-band: rgba(168, 85, 247, 0.20);
    --step-vendor: #3987e5;
    --step-webgpu-native: #d95926;
    --step-wasm: #199e70;
    --side-wasmcloud: #199e70;
    --side-native: #d95926;
    --mem-model: #6f6f6b;
    --model-1: #9085e9;
    --model-2: #c98500;
    --model-3: #d55181;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}

code, .mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  border-bottom: 1px solid var(--border);
  padding: 2rem clamp(1rem, 4vw, 3rem);
}
header h1 {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2rem);
  letter-spacing: -0.02em;
}
header .lede {
  margin: 1rem 0 0;
  color: var(--muted);
}

/* Brand block: logo + title stack */
.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}
.brand-link { display: inline-flex; }
.brand-link:hover .logo { transform: scale(1.05); }
.brand .logo {
  width: 2.5rem;
  height: auto;
  flex-shrink: 0;
  transition: transform 120ms ease;
}
.brand-text { display: flex; flex-direction: column; gap: 0.2rem; min-width: 0; }
.brand-text .kicker {
  margin: 0;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand);
  font-weight: 500;
}
@media (max-width: 480px) {
  .brand .logo { width: 2rem; }
  .brand-text .kicker { font-size: 0.75rem; letter-spacing: 0.06em; }
}
.meta {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.meta .sep { margin: 0 0.5rem; opacity: 0.5; }

.controls {
  margin-top: 1.25rem;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
}
.controls label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
}
.controls select {
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.25rem 0.5rem;
  font-family: inherit;
  font-size: inherit;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem clamp(1rem, 4vw, 3rem);
}

.bench-section { margin-bottom: 2.5rem; }
.bench-section > h2 {
  font-family: ui-monospace, monospace;
  font-size: 1.05rem;
  margin: 0 0 1rem 0;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-weight: 500;
}

.chart-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem 1.25rem;
  margin-bottom: 1rem;
}

/* Linkable section + chart headings: the title is the link, a # shows on hover. */
.bench-section, .chart-card { scroll-margin-top: 1rem; }
a.anchor { color: inherit; text-decoration: none; }
a.anchor::after {
  content: ' #' / '';
  color: var(--brand);
  opacity: 0;
  transition: opacity 0.15s;
}
a.anchor:hover::after, a.anchor:focus-visible::after { opacity: 1; }
.chart-card header {
  border: 0;
  padding: 0 0 0.75rem 0;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.chart-card h3 {
  margin: 0;
  font-family: ui-monospace, monospace;
  font-size: 1rem;
  font-weight: 500;
}
.latest {
  display: flex;
  gap: 1rem;
  font-size: 0.88rem;
  color: var(--muted);
  font-family: ui-monospace, monospace;
}
.latest .swatch {
  display: inline-block;
  width: 0.7em;
  height: 0.7em;
  border-radius: 2px;
  margin-right: 0.4em;
  vertical-align: middle;
}
.latest .delta {
  margin-left: 0.4em;
  font-size: 0.85em;
}
.delta.regress, .num.regress, td.regress { color: #d4574e; }
.delta.improve, .num.improve, td.improve { color: #2ea043; }
.metric-hint {
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-weight: 400;
  font-size: 0.78rem;
  color: var(--muted);
  margin-left: 0.5em;
}

/* tabs nav (header) */
nav.tabs {
  display: flex;
  gap: 1.25rem;
  margin: 1rem 0 0.5rem;
  border-bottom: 1px solid var(--border);
}
nav.tabs a {
  padding: 0.4rem 0;
  margin-bottom: -1px;
  color: var(--muted);
  border-bottom: 2px solid transparent;
}
nav.tabs a:hover { color: var(--fg); text-decoration: none; }
nav.tabs a.active {
  color: var(--fg);
  border-bottom-color: var(--link);
}

/* compare-view: page title (smaller, dimmer suffix on the h1) */
.page-title {
  font-size: 0.65em;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0;
}

/* compare-view: run summary cards */
.run-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
@media (max-width: 600px) {
  .run-summary { grid-template-columns: 1fr; }
}
.run-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1rem;
}
.run-card h3 {
  margin: 0 0 0.4rem 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 500;
}
.run-card.a h3 { color: var(--p2); }
.run-card.b h3 { color: var(--p3); }
.run-card .run-id { font-family: ui-monospace, monospace; font-size: 1.05rem; }
.run-card .run-meta {
  font-family: ui-monospace, monospace;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}
.host-note {
  margin: 0 0 1rem 0;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--border);
  border-left: 3px solid #d29922;
  border-radius: 4px;
  background: var(--card);
  font-size: 0.9rem;
}

/* compare-view: tally + diff table */
.tally {
  display: flex;
  gap: 1rem;
  margin: 0 0 1rem;
  font-size: 0.9rem;
  font-family: ui-monospace, monospace;
  color: var(--muted);
}
.tally-item.regress { color: #d4574e; }
.tally-item.improve { color: #2ea043; }
.tally-item.flat    { color: var(--muted); }

table.diff {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
table.diff th {
  text-align: left;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-weight: 500;
  font-size: 0.85rem;
}
table.diff th.num,
table.diff td.num {
  text-align: right;
  font-family: ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
table.diff td {
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--border);
}
table.diff tbody tr:last-child td { border-bottom: 0; }
table.diff td.mono { font-family: ui-monospace, monospace; }
table.diff tr.row-regress { background: rgba(212, 87, 78, 0.06); }
table.diff tr.row-improve { background: rgba(46, 160, 67, 0.06); }

.muted { color: var(--muted); }

.sig-badge {
  display: inline-block;
  width: 1em;
  text-align: center;
}
.sig-badge.flat { color: var(--muted); }

/* swap button on compare controls */
#swap-btn {
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.3rem 0.75rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
  align-self: end;
}
#swap-btn:hover { border-color: var(--muted); }

.chart-wrapper {
  position: relative;
  height: 260px;
}
@media (max-width: 600px) {
  .chart-wrapper { height: 220px; }
}

.empty, .error {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--muted);
}
.error { color: #d4574e; }

footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem clamp(1rem, 4vw, 3rem);
  color: var(--muted);
  font-size: 0.85rem;
}
footer p { margin: 0; }

/* gpu view */
.controls label.check { cursor: pointer; }
.controls input[type="checkbox"] { accent-color: var(--brand); margin: 0; }

.section-intro, .card-intro {
  color: var(--muted);
  font-size: 0.9rem;
  margin: -0.25rem 0 1rem;
  max-width: 75ch;
}
.card-intro { margin: 0 0 1rem; }
.sample-note {
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.9rem;
  color: var(--muted);
  font-size: 0.88rem;
  margin: 0 0 1.5rem;
}
.run-label {
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  color: var(--muted);
}
.badge {
  display: inline-block;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  line-height: 1.4;
  padding: 0 0.45em;
  border-radius: 999px;
  vertical-align: 0.1em;
}
.badge.smoke {
  color: var(--fg);
  border: 1px dashed var(--muted);
}

.badge.pr {
  color: var(--fg);
  border: 1px solid var(--muted);
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 1rem 1.5rem;
}
.bar-panel h4, .chart-card h4.sub {
  margin: 0 0 0.5rem;
  font-family: ui-monospace, monospace;
  font-size: 0.88rem;
  font-weight: 500;
}
.chart-card h4.sub {
  margin: 1.5rem 0 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
}
/* One grid for all of a panel's rows, so every track is the same width. */
.bars {
  display: grid;
  grid-template-columns: max-content minmax(4rem, 1fr) max-content;
  align-items: center;
  gap: 0.55rem 0.6rem;
  font-size: 0.85rem;
}
.bar-row { display: contents; }
.bar-label { font-family: ui-monospace, monospace; white-space: nowrap; }
.bar-track {
  position: relative;
  height: 14px;
  border-radius: 0 4px 4px 0;
  background: var(--grid);
}
.bar-fill {
  position: absolute;
  inset: 0 auto 0 0;
  min-width: 2px;
  border-radius: 0 4px 4px 0;
}
.bar-marker {
  position: absolute;
  top: -4px;
  bottom: -4px;
  border-left: 2px dashed var(--fg);
  opacity: 0.55;
}
.bar-value {
  font-family: ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}
.bar-note { color: var(--muted); font-size: 0.78rem; }
.panel-foot, .card-foot {
  margin: 0.6rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.panel-foot b { color: var(--fg); font-family: ui-monospace, monospace; font-weight: 500; }
.caveat {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  max-width: 85ch;
}
.caveat.warn { color: var(--regress); margin: 0 0 0.75rem; }
@media (max-width: 560px) {
  .bars { display: flex; flex-direction: column; align-items: stretch; gap: 0.7rem; }
  .bar-row {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-areas: "label value" "track track";
    gap: 0.25rem 0.6rem;
    align-items: baseline;
  }
  .bar-label { grid-area: label; }
  .bar-track { grid-area: track; }
  .bar-value {
    grid-area: value;
    flex-direction: row-reverse;
    flex-wrap: wrap;
    gap: 0 0.5rem;
    align-items: baseline;
  }
}

.trend-panel { min-width: 0; }
.trend-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.25rem 1rem;
  margin-bottom: 0.4rem;
}
.trend-title { font-family: ui-monospace, monospace; font-size: 0.85rem; }
.trend-head .latest { flex-wrap: wrap; gap: 0.25rem 0.9rem; font-size: 0.8rem; }
.chart-wrapper.small { height: 200px; }
.chart-wrapper.timeline { height: 320px; }
@media (max-width: 600px) {
  .chart-wrapper.timeline { height: 280px; }
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1rem;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.legend .legend-sep { margin-left: 0.5rem; }
.legend .swatch, .tile .swatch, .split-table .swatch {
  display: inline-block;
  width: 0.7em;
  height: 0.7em;
  border-radius: 2px;
  margin-right: 0.4em;
  vertical-align: middle;
}
.legend .swatch.line { height: 3px; width: 1.1em; border-radius: 2px; }
.legend .swatch.idle {
  background: repeating-linear-gradient(135deg, var(--muted) 0 1px, transparent 1px 4px);
  opacity: 0.8;
}

.split-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}
.split-table th, .split-table td {
  padding: 0.3rem 0.5rem;
  border-bottom: 1px solid var(--border);
  text-align: right;
}
.split-table th:first-child, .split-table td:first-child { text-align: left; }
.split-table th { font-weight: 600; color: var(--muted); }
.table-scroll { overflow-x: auto; }
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: 0.75rem;
  margin-top: 1.25rem;
}
.tile {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.65rem 0.8rem;
}
.tile-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.tile-line {
  display: flex;
  align-items: baseline;
  gap: 0.2rem;
  font-size: 0.85rem;
}
.tile-side { color: var(--muted); }
.tile-value {
  margin-left: auto;
  font-family: ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 1.05rem;
}
.tile-sub {
  text-align: right;
  font-size: 0.75rem;
  color: var(--muted);
  font-family: ui-monospace, monospace;
}