/* SPDX-License-Identifier: Apache-2.0 */
/* SPDX-FileCopyrightText: Copyright the Vortex contributors */

:root {
  color-scheme: light;
  --header-height: 72px;
  --bg: #ffffff;
  --page-bg: #fafafa;
  --fg: #101010;
  --muted: #666666;
  --accent: #5971fd;
  --accent-fg: #ffffff;
  --border: #ececec;
  --card-bg: #ffffff;
  --code-bg: #fafafa;
  --tooltip-bg: #1a1a1a;
  --tooltip-fg: #f5f5f5;
  --good: #16a34a;
  --bad: #dc2626;
  --shadow-md: 0 4px 8px rgba(16, 16, 16, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #050507;
    --page-bg: #121219;
    --fg: #f5f5f7;
    --muted: #a0a0b0;
    --accent: #8a9cff;
    --accent-fg: #050507;
    --border: #30303a;
    --card-bg: #050507;
    --code-bg: #121219;
    --tooltip-bg: #1a1c22;
    --tooltip-fg: #f5f5f5;
    --good: #4ade80;
    --bad: #f87171;
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.7);
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #ffffff;
  --page-bg: #fafafa;
  --fg: #101010;
  --muted: #666666;
  --accent: #5971fd;
  --accent-fg: #ffffff;
  --border: #ececec;
  --card-bg: #ffffff;
  --code-bg: #fafafa;
  --tooltip-bg: #1a1a1a;
  --tooltip-fg: #f5f5f5;
  --good: #16a34a;
  --bad: #dc2626;
  --shadow-md: 0 4px 8px rgba(16, 16, 16, 0.08);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #050507;
  --page-bg: #121219;
  --fg: #f5f5f7;
  --muted: #a0a0b0;
  --accent: #8a9cff;
  --accent-fg: #050507;
  --border: #30303a;
  --card-bg: #050507;
  --code-bg: #121219;
  --tooltip-bg: #1a1c22;
  --tooltip-fg: #f5f5f5;
  --good: #4ade80;
  --bad: #f87171;
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.7);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  min-width: 0;
  overflow-x: hidden;
  background: var(--page-bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

body {
  padding-top: var(--header-height);
}

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

.sticky-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  border-bottom: 1px solid var(--border);
  background: rgba(250, 250, 250, 0.95);
  box-shadow: 0 1px 3px rgba(16, 16, 16, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .sticky-header {
    background: rgba(18, 18, 25, 0.95);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
  }
}

:root[data-theme="dark"] .sticky-header {
  background: rgba(18, 18, 25, 0.95);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
}

:root[data-theme="light"] .sticky-header {
  background: rgba(250, 250, 250, 0.95);
  box-shadow: 0 1px 3px rgba(16, 16, 16, 0.08);
}

.header-content {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: 100%;
  height: 100%;
  padding: 0 2rem;
  background: var(--code-bg);
}

.header-left,
.header-center,
.header-right,
.nav-controls,
.repo-link,
.logo-link {
  display: flex;
  align-items: center;
}

.header-left {
  min-width: 0;
  gap: 0.75rem;
}

.header-center {
  position: absolute;
  left: 50%;
  top: 50%;
  flex: 0 0 auto;
  justify-content: center;
  min-width: 0;
  transform: translate(-50%, -50%);
}

.header-right {
  justify-content: flex-end;
  gap: 0.75rem;
  margin-left: auto;
}

.nav-controls {
  gap: 0.75rem;
  min-width: 0;
}

.logo-link {
  flex: 0 0 auto;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.logo-link:hover {
  opacity: 0.8;
  text-decoration: none;
}

.site-logo {
  display: block;
  width: auto;
  height: 24px;
}

.logo-dark { display: none; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-light { display: none; }
  :root:not([data-theme="light"]) .logo-dark { display: block; }
}

:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: block; }
:root[data-theme="light"] .logo-light { display: block; }
:root[data-theme="light"] .logo-dark { display: none; }

.site-title {
  display: none;
  margin: 0 0 0 1.5rem;
  color: var(--fg);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
}

@media (min-width: 1400px) {
  .site-title {
    display: block;
  }
}

.control-btn,
.repo-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  transition: background-color 0.2s ease, border-color 0.2s ease,
    box-shadow 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.control-btn {
  padding: 0.5rem 1.25rem;
  cursor: pointer;
}

.control-btn:hover,
.repo-link:hover {
  border-color: var(--accent);
  background: var(--code-bg);
  color: var(--accent);
  box-shadow: 0 1px 3px rgba(16, 16, 16, 0.08);
  text-decoration: none;
  transform: translateY(-1px);
}

.theme-toggle {
  min-width: 4.25rem;
}

.btn-icon {
  flex: 0 0 auto;
}

.theme-icon-dark {
  display: none;
}

.theme-toggle[data-next-theme="dark"] .theme-icon-light {
  display: none;
}

.theme-toggle[data-next-theme="dark"] .theme-icon-dark {
  display: block;
}

.theme-toggle[data-next-theme="light"] .theme-icon-light {
  display: block;
}

.theme-toggle[data-next-theme="light"] .theme-icon-dark {
  display: none;
}

.repo-link {
  padding: 0.5rem 1rem;
  font-weight: 600;
}

.github-logo {
  flex: 0 0 auto;
}

.page-header {
  border-bottom: 1px solid var(--border);
  background: var(--code-bg);
  padding: 1rem 2rem;
  width: 100%;
}
.page-header h1 { margin: 0; font-size: 1.25rem; font-weight: 600; }
.page-header h1 a { color: var(--fg); }
.page-header .subtitle {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.875rem;
}

main {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 2rem;
}

@media (min-width: 1600px) {
  main { padding: 2.5rem 3.75rem; }
}

@media (min-width: 1920px) {
  main { padding: 3rem 5rem; }
}

.empty {
  color: var(--muted);
  font-style: italic;
}

.group-details {
  width: 100%;
  max-width: none;
  margin-bottom: 3rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.group-disclosure {
  display: block;
}
.group-summary {
  list-style: none;
  cursor: pointer;
  display: block;
  background: var(--code-bg);
  border-radius: 12px 12px 0 0;
  user-select: none;
}
.group-summary-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.2s ease;
}
.group-summary::-webkit-details-marker { display: none; }
.group-summary-row::before {
  content: "▶";
  display: inline-block;
  width: 1rem;
  flex: 0 0 auto;
  font-size: 0.9rem;
  line-height: 1;
  text-align: center;
  color: var(--muted);
  transition: transform 120ms ease;
}
.group-disclosure[open] > .group-summary .group-summary-row::before {
  transform: rotate(90deg);
}
.group-summary:hover .group-summary-row { background: var(--bg); }
.group-name {
  font-weight: 600;
  font-size: 1.35rem;
  line-height: 1.2;
  letter-spacing: 0;
}
.group-count {
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  line-height: 1;
  text-transform: uppercase;
}
/*
 * The small ⓘ next to a group title that surfaces the editorial blurb on
 * hover and on focus. The icon is keyboard-focusable; clicking the icon
 * doesn't toggle the surrounding `<details>` because we stop propagation
 * via `pointer-events: auto` on the icon (the surrounding summary row is
 * still clickable around it).
 */
.group-info-icon {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  font-size: 0.95rem;
  line-height: 1;
  color: var(--muted);
  cursor: help;
  user-select: none;
  flex-shrink: 0;
  transition: color 0.15s ease;
}
.group-info-icon:hover,
.group-info-icon:focus-visible {
  color: var(--fg);
  outline: none;
}
/*
 * CSS-only tooltip rendered below the icon. We use a `::after` pseudo so
 * we don't have to plant extra DOM. `pointer-events: none` keeps the
 * tooltip from intercepting hover (which would cause flicker), and
 * `white-space: normal` + a fixed `max-width` lets long descriptions wrap
 * gracefully.
 *
 * Anchored to the icon's left edge (not centred on the icon) so the tooltip
 * grows rightward into the page. Group titles in our layout are left-
 * aligned in the disclosure header, so the icon is always close to the
 * viewport's left edge — `left: 50%; transform: translateX(-50%)` would
 * push half of a wide tooltip off the screen and clip it. Anchoring to the
 * left keeps the description fully visible.
 */
[data-tooltip].group-info-icon::after {
  content: attr(data-tooltip);
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  padding: 0.5rem 0.75rem;
  background: var(--tooltip-bg);
  color: var(--tooltip-fg);
  font-size: 0.8rem;
  font-weight: 400;
  line-height: 1.35;
  border-radius: 6px;
  max-width: min(28rem, 90vw);
  width: max-content;
  white-space: normal;
  text-align: left;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease, visibility 0.15s ease;
  pointer-events: none;
  z-index: 10;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}
[data-tooltip].group-info-icon:hover::after,
[data-tooltip].group-info-icon:focus-visible::after {
  opacity: 1;
  visibility: visible;
}
.group-details > .chart-grid {
  padding: 1.25rem;
  background: var(--bg);
}

.benchmark-scores-summary {
  border-bottom: 1px solid var(--border);
  background: var(--code-bg);
  padding: 0.75rem 2rem;
  margin: 0;
}

.group-disclosure:not([open]) ~ .chart-grid {
  display: none;
}

.group-details > .chart-grid .chart-card:last-child {
  margin-bottom: 0;
}

.chart-meta + .benchmark-scores-summary {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 1rem;
}

.scores-title {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.scores-list {
  column-count: 2;
  column-gap: 1.25rem;
}

.score-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0;
  font-size: 0.875rem;
  break-inside: avoid;
}

.score-rank {
  min-width: 2.25rem;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 650;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}

.score-series {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  color: var(--fg);
  font-weight: 550;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.score-metrics {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.score-value,
.score-runtime {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.8rem;
  font-weight: 650;
}

.score-value { color: var(--accent); }
.score-runtime { color: var(--muted); }

.scores-explanation {
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-style: italic;
  text-align: center;
}

/* ----------------------------------------------------------------------
 * Global filter dropdown — lives inside the sticky header. The trigger is
 * a `.control-btn` styled like the expand/collapse buttons; the panel is
 * absolutely positioned beneath it and shows two rows of `.filter-chip`
 * buttons that toggle whole engines / formats across every chart at once.
 *
 * Toggle semantics (driven by chart-init.js):
 *   - Each non-"all" chip toggles independently. Active = visible.
 *   - The "all" chip is a one-shot reset; clicking it forces every chip
 *     in that row back to active. It never holds an active state itself.
 *   - Per-chart legend clicks override the global state for that card.
 * ---------------------------------------------------------------------- */
.filter-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.filter-trigger {
  position: relative;
}
.filter-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 0.4rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-fg);
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1;
}
.filter-panel {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 22rem;
  max-width: min(90vw, 36rem);
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  box-shadow: var(--shadow-md);
}
.filter-panel[hidden] { display: none; }
.global-filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}
.global-filter-label {
  flex: 0 0 auto;
  min-width: 4rem;
  color: var(--muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.filter-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 24px;
  padding: 0.1rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  color: var(--fg);
  font-size: 0.78rem;
  font-family: inherit;
  cursor: pointer;
}
.filter-chip:hover { border-color: var(--accent); }
.filter-chip--active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}
.filter-chip--all {
  font-weight: 600;
}

/* ----------------------------------------------------------------------
 * Per-chart toolbar (`.toolbar.toolbar--card`)
 * ---------------------------------------------------------------------- */
.toolbar--card {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
  align-items: center;
  padding: 0.4rem 0.5rem;
  margin-bottom: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  font-size: 0.78rem;
}
.toolbar-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem;
}
.toolbar-label {
  color: var(--muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-right: 0.15rem;
}
.toolbar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 24px;
  padding: 0.1rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg);
  color: var(--fg);
  font-size: 0.78rem;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
}
.toolbar-btn:hover { border-color: var(--accent); }
.toolbar-btn--active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}
.toolbar-btn--active:hover { color: var(--accent-fg); }
.toolbar-slider {
  width: 12rem;
  accent-color: var(--accent);
}
/* ----------------------------------------------------------------------
 * Single-chart + group-page chart card
 * ---------------------------------------------------------------------- */
.chart-meta {
  color: var(--muted);
  font-size: 0.875rem;
  margin: 0 0 0.75rem;
}
.chart-meta code {
  background: var(--code-bg);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-size: 0.85em;
}

.chart-card {
  min-width: 0;
  width: 100%;
  max-width: none;
  position: relative;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  padding: 1.25rem;
  margin-bottom: 1rem;
  transition: box-shadow 0.2s ease;
}
.chart-card:hover {
  box-shadow: var(--shadow-md);
}
.chart-card-title {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.chart-card-title a { color: var(--fg); }
.chart-card-title a:hover { color: var(--accent); }

/* Downsampled-payload badge. Rendered both server-side (when the inline
 * payload was downsampled) and client-side (after the lazy fetch
 * completes). The `hidden` attribute hides it when no downsampling
 * occurred; JS toggles it via `removeAttribute("hidden")`. */
.chart-badge {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: var(--code-bg);
  color: var(--muted);
  border: 1px solid var(--border);
  white-space: nowrap;
  cursor: help;
}
.chart-badge[hidden] { display: none; }
.chart-badge--downsampled {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

.chart-grid {
  width: 100%;
  max-width: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.chart-wrap {
  width: 100%;
  position: relative;
  height: 420px;
}
.chart-card .chart-wrap canvas,
.chart-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

@media (min-width: 1200px) {
  .chart-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .chart-wrap {
    height: 450px;
  }
}

/* Single-chart pages get a taller area; group cards keep the compact 450px. */
main > .chart-card:not(.chart-grid .chart-card) .chart-wrap {
  height: 680px;
}

/* ----------------------------------------------------------------------
 * Range scrollbar strip (`.chart-range-strip`)
 *
 * Thin track below each canvas. Spans the full commit history; the inset
 * `.chart-range-strip-window` highlights the currently visible slice and
 * carries two edge handles for resize. Pointer events are intentionally
 * `auto` (unlike the tooltip host) because users grab and drag this widget.
 * ---------------------------------------------------------------------- */
.chart-range-strip {
  position: relative;
  width: 100%;
  height: 14px;
  margin-top: 0.4rem;
  pointer-events: auto;
  user-select: none;
  touch-action: none;
}
.chart-range-strip-track {
  position: absolute;
  inset: 0;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.chart-range-strip-window {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  background: color-mix(in srgb, var(--accent) 28%, transparent);
  border-left: 1px solid var(--accent);
  border-right: 1px solid var(--accent);
  cursor: grab;
  box-sizing: border-box;
}
.chart-range-strip--dragging .chart-range-strip-window { cursor: grabbing; }
.chart-range-strip-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 6px;
  background: var(--accent);
  cursor: ew-resize;
}
.chart-range-strip-handle--left { left: -3px; border-radius: 2px 0 0 2px; }
.chart-range-strip-handle--right { right: -3px; border-radius: 0 2px 2px 0; }
.chart-range-strip-handle:hover { filter: brightness(1.1); }

@media (max-width: 768px) {
  .chart-range-strip { height: 18px; }
  .chart-range-strip-handle { width: 10px; }
  .chart-range-strip-handle--left { left: -5px; }
  .chart-range-strip-handle--right { right: -5px; }
}

.no-script {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--code-bg);
  color: var(--muted);
  font-size: 0.875rem;
}

/* Per-card loading + error indicators (lazy-fetch on details toggle). */
.chart-loading,
.chart-error {
  position: absolute;
  top: 0.5rem;
  right: 0.75rem;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  pointer-events: none;
  z-index: 5;
}
.chart-loading {
  background: var(--code-bg);
  color: var(--muted);
  border: 1px solid var(--border);
}
.chart-error {
  background: var(--bad);
  color: var(--accent-fg);
  max-width: 18rem;
  white-space: normal;
}

/* ----------------------------------------------------------------------
 * Custom external tooltip
 *
 * `pointer-events: none` is intentional and load-bearing: previously this
 * was flipped to `auto` while visible, which caused a flicker loop where
 * the cursor would land on the tooltip → mouseout fires on the canvas →
 * tooltip hides → cursor lands on the canvas → tooltip shows. The cost is
 * that links inside the tooltip are no longer clickable; the chart-card
 * title already links to the permalink.
 * ---------------------------------------------------------------------- */
.chart-tooltip-host {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  opacity: 0;
  z-index: 20;
  background: var(--tooltip-bg);
  color: var(--tooltip-fg);
  border-radius: 6px;
  padding: 0.5rem 0.65rem;
  font-size: 0.8rem;
  line-height: 1.35;
  max-width: 22rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  /* default offset; chart-init.js flips horizontally near the right edge */
  transform: translate(12px, 12px);
  transition: opacity 80ms;
}
.tt-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
  font-variant-numeric: tabular-nums;
}
.tt-rows { display: flex; flex-direction: column; gap: 0.15rem; }
.tt-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
}
.tt-swatch {
  display: inline-block;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  flex: 0 0 auto;
}
.tt-label {
  flex: 1 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 11rem;
}
.tt-value {
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}
.tt-delta {
  font-variant-numeric: tabular-nums;
  font-size: 0.75rem;
  opacity: 0.85;
}
.tt-delta--better { color: var(--good); }
.tt-delta--worse { color: var(--bad); }
.tt-footer {
  margin-top: 0.4rem;
  padding-top: 0.4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.tt-msg {
  color: var(--tooltip-fg);
  opacity: 0.85;
  white-space: normal;
  font-style: italic;
}

/* ----------------------------------------------------------------------
 * Mobile
 * ---------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }
  .header-content {
    gap: 0.5rem;
    padding: 0 0.5rem;
  }
  .site-logo {
    height: 16px;
  }
  .header-left {
    gap: 0.5rem;
  }
  .header-center {
    position: static;
    flex: 1 1 auto;
    transform: none;
  }
  .header-right {
    gap: 0.35rem;
    margin-left: 0;
  }
  .site-title {
    display: none;
  }
  .nav-controls {
    gap: 0.35rem;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .nav-controls::-webkit-scrollbar {
    display: none;
  }
  .control-btn,
  .repo-link {
    min-height: 32px;
    border-radius: 6px;
    font-size: 0.75rem;
  }
  .control-btn {
    padding: 0.4rem 0.55rem;
  }
  .theme-toggle {
    min-width: 3.25rem;
  }
  .repo-link {
    padding: 0.4rem 0.55rem;
  }
  .repo-link span {
    display: none;
  }
  main { padding: 1rem; }
  .group-details {
    margin-bottom: 1.5rem;
    border-radius: 8px;
  }
  .group-summary {
    border-radius: 8px 8px 0 0;
  }
  .group-summary-row {
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
  }
  .group-name {
    flex: 1 1 auto;
    min-width: 0;
    font-size: 1.1rem;
    word-break: break-word;
  }
  .group-count {
    flex: 0 0 auto;
    font-size: 0.65rem;
  }
  .group-details > .chart-grid {
    padding: 0.75rem;
  }
  .benchmark-scores-summary {
    padding: 0.6rem 1rem;
  }
  .toolbar--card {
    gap: 0.35rem 0.6rem;
    padding: 0.4rem 0.45rem;
  }
  .toolbar-btn {
    min-height: 32px;
    padding: 0.25rem 0.6rem;
    font-size: 0.85rem;
  }
  .scores-list { column-count: 1; }
  .score-item { align-items: flex-start; }
  .score-metrics { flex-direction: column; gap: 0; align-items: flex-end; }
  .toolbar-slider { width: 100%; flex: 1 1 auto; min-width: 6rem; }
  .chart-grid { grid-template-columns: 1fr; gap: 0.5rem; }
  .chart-wrap { height: 350px; }
  main > .chart-card:not(.chart-grid .chart-card) .chart-wrap { height: 420px; }
}