/* ==========================================================================
   Conquer3D documentation -- design system
   Dark-first, hairline-ruled, high whitespace. Colour is a signal, not a
   surface: the green->cyan->violet ramp marks tiers, active state and the
   hero, and is never used as flood fill.
   ========================================================================== */

:root {
  /* Accent ramp: CUDA green -> cyan -> violet */
  --a-green: #76b900;
  --a-cyan: #22d3ee;
  --a-violet: #a78bfa;
  --a-amber: #fbbf24;
  --a-rose: #fb7185;

  --grad: linear-gradient(100deg, var(--a-green), var(--a-cyan) 55%, var(--a-violet));
  /* Coverage bars stay green rather than using the full accent ramp. */
  --grad-cov: linear-gradient(90deg, var(--a-green), #a3e635);

  /* Dark palette (default) */
  --bg: #08090c;
  --bg-soft: #0d0f14;
  --surface: #12151c;
  --surface-2: #171b24;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --fg: #e8ebf2;
  --fg-mid: #b3bbcc;
  --fg-dim: #868fa4;
  --accent: var(--a-green);
  --accent-fg: #08090c;
  --shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 12px 32px -12px rgba(0, 0, 0, .7);

  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --nav-h: 58px;
  --sidebar-w: 268px;
  --toc-w: 220px;
  --radius: 10px;
  --maxw: 1560px;
}

html[data-theme="light"] {
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --surface: #ffffff;
  --surface-2: #f4f6f9;
  --line: rgba(15, 23, 42, 0.11);
  --line-strong: rgba(15, 23, 42, 0.2);
  --fg: #0f172a;
  --fg-mid: #3d4557;
  --fg-dim: #56607a;
  --accent: #4d7c00;
  --accent-fg: #ffffff;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 12px 28px -14px rgba(15, 23, 42, .22);
  --grad-cov: linear-gradient(90deg, #3f6212, #65a30d);
}

* { box-sizing: border-box; }

/* Nothing may force the page wider than the viewport. */
img, video, canvas, svg { max-width: 100%; }
pre, table { max-width: 100%; }
.sym, .sym-body, .content, .card { min-width: 0; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 18px); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  /* rem, not px: a reader who raises their browser's default font size gets a
     larger site instead of being overridden. */
  font-size: 1rem;
  line-height: 1.7;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }

/* Inside running text a link needs to be visible without relying on hue. */
.prose a, .fig-body a, .adm a, .card p a, .summary a, .section-head p a {
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, currentColor 38%, transparent);
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
}
.prose a:hover, .fig-body a:hover, .adm a:hover, .card p a:hover {
  text-decoration-color: currentColor;
}

/* Keyboard focus has to be visible; the default ring is invisible on dark. */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}
a:hover { color: var(--accent); }

h1, h2, h3, h4 { line-height: 1.22; letter-spacing: -0.021em; font-weight: 640; margin: 0; }
h1 { font-size: 2.3rem; }
h2 { font-size: 1.42rem; }
h3 { font-size: 1.08rem; }

code, pre, .mono { font-family: var(--mono); font-variant-ligatures: none; }

::selection { background: color-mix(in srgb, var(--a-cyan) 32%, transparent); }

/* --------------------------------------------------------------------- nav */

.nav {
  position: sticky; top: 0; z-index: 60;
  height: var(--nav-h);
  display: flex; align-items: center; gap: 26px;
  padding: 0 22px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; letter-spacing: -0.03em; font-size: 1.02rem; }
.brand .mark {
  width: 19px; height: 19px; border-radius: 5px;
  background: var(--grad);
  box-shadow: 0 0 16px -2px color-mix(in srgb, var(--a-cyan) 55%, transparent);
}
.brand .ver { font: 500 10.5px/1 var(--mono); color: var(--fg-dim); border: 1px solid var(--line); padding: 3px 5px; border-radius: 4px; }

.nav-tabs { display: flex; gap: 3px; margin-left: 6px; }
/* A tab is a direct link or a dropdown's trigger. Scoped with ">" so links inside
   a dropdown panel take none of this, while the frozen API archives, whose nav is
   still a flat row of links, keep matching .nav-tabs > a. */
.nav-tabs > a, .nav-dd > a {
  padding: 7px 13px; border-radius: 7px; font-size: .875rem; font-weight: 500;
  color: var(--fg-mid); transition: background .15s, color .15s;
}
.nav-tabs > a:hover, .nav-dd > a:hover { background: var(--surface-2); color: var(--fg); }
.nav-tabs > a.active, .nav-dd > a.active { color: var(--fg); background: var(--surface-2); }
.nav-tabs > a.active::after, .nav-dd > a.active::after {
  content: ""; display: block; height: 2px; margin-top: 5px; border-radius: 2px; background: var(--grad);
}

/* The Showcase tab opens its galleries on hover or keyboard focus. The menu hides
   with opacity and pointer-events rather than visibility, so its links stay in the
   tab order and the accessibility tree, and focusing one opens it. Hover is gated
   on (hover: hover): on a touch screen a tap on the tab goes straight to the
   landing page instead of being taken as a hover. */
.nav-dd { position: relative; }
/* Inside the wrapper the trigger is no longer a flex item; block keeps the active
   underline on its own line under the label. */
.nav-dd > a { display: block; }
.nav-dd-chevron {
  width: 10px; height: 10px; margin-left: 5px; vertical-align: 1px;
  opacity: .7; transition: transform .15s;
}
.nav-dd-menu {
  position: absolute; top: 100%; left: -6px; z-index: 5; min-width: 190px;
  padding-top: 8px;  /* transparent bridge, so the pointer can travel from tab to panel */
  opacity: 0; transform: translateY(-4px); pointer-events: none;
  transition: opacity .15s, transform .15s;
}
@media (hover: hover) {
  .nav-dd:hover .nav-dd-menu { opacity: 1; transform: none; pointer-events: auto; }
  .nav-dd:hover .nav-dd-chevron { transform: rotate(180deg); }
}
.nav-dd:focus-within .nav-dd-menu { opacity: 1; transform: none; pointer-events: auto; }
.nav-dd:focus-within .nav-dd-chevron { transform: rotate(180deg); }
/* Escape closes the menu even while the pointer or focus is still inside; declared
   after the open rules so it wins at equal specificity. */
.nav-dd.dismissed .nav-dd-menu { opacity: 0; transform: translateY(-4px); pointer-events: none; }
.nav-dd.dismissed .nav-dd-chevron { transform: none; }
.nav-dd-panel {
  background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: 10px; box-shadow: var(--shadow); padding: 5px;
}
.nav-dd-panel a {
  display: block; padding: 8px 12px; border-radius: 6px; white-space: nowrap;
  font-size: .875rem; font-weight: 500; color: var(--fg-mid);
}
.nav-dd-panel a:hover { background: var(--surface-2); color: var(--fg); }
.nav-dd-panel a.current { color: var(--fg); background: var(--surface-2); box-shadow: inset 2px 0 var(--accent); }

.nav-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }

.icon-btn {
  width: 33px; height: 33px; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: 8px; background: transparent;
  color: var(--fg-mid); cursor: pointer; transition: border-color .15s, color .15s;
}
.icon-btn:hover { border-color: var(--line-strong); color: var(--fg); }

.search-trigger {
  display: flex; align-items: center; gap: 9px;
  height: 33px; padding: 0 10px; min-width: 194px;
  border: 1px solid var(--line); border-radius: 8px;
  background: var(--surface); color: var(--fg-dim);
  font-size: .82rem; cursor: pointer; font-family: var(--sans);
}
.search-trigger:hover { border-color: var(--line-strong); }
.search-trigger kbd {
  margin-left: auto; font: 500 10px/1 var(--mono);
  border: 1px solid var(--line); border-radius: 4px; padding: 3px 5px; color: var(--fg-dim);
}

/* ------------------------------------------------------------------- shell */

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w);
  gap: 42px;
  max-width: var(--maxw); margin: 0 auto; padding: 0 22px;
  align-items: start;
}

.sidebar, .toc {
  position: sticky; top: var(--nav-h);
  max-height: calc(100vh - var(--nav-h)); overflow-y: auto;
  padding: 26px 0 60px;
  scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent;
}
.sidebar::-webkit-scrollbar, .toc::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb, .toc::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 3px; }

.content { padding: 34px 0 110px; min-width: 0; }

/* ---------------------------------------------------------------- sidebar */

.side-group { margin-bottom: 22px; }
.side-head {
  display: flex; align-items: center; gap: 8px;
  font: 650 11.5px/1 var(--sans); letter-spacing: .085em; text-transform: uppercase;
  color: var(--fg-dim); margin-bottom: 9px; padding: 0 10px;
}
.side-head .tier-dot { width: 6px; height: 6px; border-radius: 50%; flex: none; }
.side-link {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; border-radius: 7px; font-size: .895rem; color: var(--fg-mid);
  border-left: 2px solid transparent;
}
.side-link:hover { background: var(--surface-2); color: var(--fg); }
.side-link.active { color: var(--fg); background: var(--surface-2); border-left-color: var(--accent); font-weight: 550; }
.side-link .count { margin-left: auto; font: 500 11px/1 var(--mono); color: var(--fg-dim); flex: none; }
.side-link { min-width: 0; overflow-wrap: anywhere; }

/* -------------------------------------------------------------------- toc */

.side-versions { margin-bottom: 20px; }
.ver-select {
  width: 100%; margin-top: 4px; padding: 7px 9px;
  font: 500 .84rem/1.3 var(--mono);
  color: var(--fg); background: var(--surface);
  border: 1px solid var(--line); border-radius: 7px;
  cursor: pointer; appearance: none;
}
.ver-select:hover { border-color: var(--line-strong); }
.ver-select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.toc-head { font: 650 11.5px/1 var(--sans); letter-spacing: .085em; text-transform: uppercase; color: var(--fg-dim); margin-bottom: 11px; }
.toc a {
  display: block; padding: 5px 0 5px 12px; font-size: .84rem; color: var(--fg-mid);
  border-left: 2px solid var(--line); overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.toc a:hover { color: var(--fg); border-left-color: var(--line-strong); }
.toc a.active { color: var(--accent); border-left-color: var(--accent); }
.toc a.lvl-2 { padding-left: 24px; font-size: .805rem; }

/* ------------------------------------------------------------------- hero */

.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero-fade {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(115% 82% at 68% 42%, transparent 24%, var(--bg) 84%);
}
.hero-inner {
  position: relative; max-width: var(--maxw); margin: 0 auto;
  padding: 108px 22px 96px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .82fr); gap: 40px;
}
.hero-copy { max-width: 620px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font: 600 11px/1 var(--mono); letter-spacing: .09em; text-transform: uppercase;
  color: var(--fg-mid); border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 12px; margin-bottom: 24px; background: color-mix(in srgb, var(--surface) 70%, transparent);
}
.eyebrow .pulse {
  width: 6px; height: 6px; border-radius: 50%; background: var(--a-green);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--a-green) 70%, transparent);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--a-green) 60%, transparent); }
  70% { box-shadow: 0 0 0 9px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.hero h1 { font-size: clamp(2.5rem, 5.4vw, 3.9rem); letter-spacing: -0.038em; font-weight: 700; }
.hero h1 .grad {
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lede { font-size: 1.16rem; color: var(--fg-mid); margin: 22px 0 32px; max-width: 56ch; line-height: 1.6; }

.btn-row { display: flex; flex-wrap: wrap; gap: 11px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 19px; border-radius: 9px; font-size: .89rem; font-weight: 570;
  border: 1px solid var(--line); color: var(--fg); transition: border-color .15s, transform .15s, background .15s;
}
.btn:hover { border-color: var(--line-strong); transform: translateY(-1px); color: var(--fg); }
.btn-primary { background: var(--grad); color: #06210a; border-color: transparent; font-weight: 640; }
html[data-theme="light"] .btn-primary { color: #06210a; }
.btn-primary:hover { color: #06210a; filter: brightness(1.07); }

.hero-card {
  align-self: center;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow);
  overflow: hidden; backdrop-filter: blur(9px);
}
.hero-card-bar {
  display: flex; align-items: center; gap: 7px; padding: 10px 14px;
  border-bottom: 1px solid var(--line); font: 500 11px/1 var(--mono); color: var(--fg-dim);
}
.hero-card-bar .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--line-strong); }
.hero-card pre { margin: 0; padding: 16px 18px; font-size: .845rem; line-height: 1.75; overflow-x: auto; }

/* ----------------------------------------------------------------- section */

.section { padding: 86px 0; border-bottom: 1px solid var(--line); }
.section-head { max-width: 660px; margin-bottom: 44px; }
.section-head .kicker {
  font: 650 15px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--accent);
  display: block; margin-bottom: 15px;
}
.section-head p { color: var(--fg-mid); margin: 13px 0 0; font-size: 1.05rem; max-width: 74ch; }

.grid { display: grid; gap: 17px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(285px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }

.card {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 22px;
  background: var(--surface); transition: border-color .18s, transform .18s;
  position: relative; overflow: hidden;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px; background: var(--grad);
  opacity: 0; transition: opacity .18s;
}
.card:hover::before { opacity: 1; }
/* Bibliography entries are one line of title and one of metadata, and there are
   many of them. The general .card is padded for prose, so a denser card and a
   narrower column minimum fit roughly twice as many on screen. */
.bib-grid {
  display: grid; gap: 10px;
  /* auto-fill, not auto-fit: a section with only two entries should show two
     normal-width cards, not two stretched across the whole row. */
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 265px), 1fr));
}
.bib {
  border: 1px solid var(--line); border-radius: 9px; padding: 12px 14px;
  background: var(--surface); transition: border-color .18s;
}
.bib:hover { border-color: var(--line-strong); }
.bib h3 { margin: 0 0 5px; font-size: .9rem; line-height: 1.35; font-weight: 600; }
.bib p { margin: 0; color: var(--fg-dim); font-size: .795rem; line-height: 1.5; }
.bib-tag {
  font: 600 10px/1 var(--mono); text-transform: uppercase;
  letter-spacing: .07em; color: var(--accent); margin-right: 5px;
}

.card h3 { margin-bottom: 9px; font-size: 1rem; }
.card p { margin: 0; color: var(--fg-mid); font-size: .935rem; max-width: 68ch; }
.card .idx { font: 600 10.5px/1 var(--mono); color: var(--fg-dim); margin-bottom: 13px; display: block; }
.card ul { margin: 12px 0 0; padding-left: 17px; color: var(--fg-mid); font-size: .855rem; }
.card ul li { margin: 4px 0; }
.card code { font-size: .82em; color: var(--fg); }

/* ------------------------------------------------------------------ table */

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table {
  border-collapse: collapse; width: 100%; font-size: .915rem;
  font-variant-numeric: tabular-nums;
}
thead th {
  text-align: left; padding: 12px 15px; font-weight: 600; color: var(--fg-dim);
  border-bottom: 1px solid var(--line); white-space: nowrap;
  font-size: .74rem; letter-spacing: .07em; text-transform: uppercase;
}
tbody td { padding: 11px 15px; border-bottom: 1px solid var(--line); vertical-align: top; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--surface-2); }
td .num { font-family: var(--mono); font-size: .93em; }
.hl { color: var(--accent); font-weight: 600; }

/* -------------------------------------------------------------- api entry */

.page-head { margin-bottom: 34px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.page-head h1 {
  font-size: 1.95rem; font-family: var(--mono); letter-spacing: -0.028em;
  overflow-wrap: anywhere;
}
.page-head .sub { color: var(--fg-mid); margin-top: 10px; }
.crumbs {
  font-size: .78rem; color: var(--fg-dim); margin-bottom: 12px;
  display: flex; gap: 7px; align-items: center; flex-wrap: wrap;
}
.crumbs a:hover { color: var(--accent); }

.module-band {
  display: flex; align-items: center; gap: 11px; flex-wrap: wrap;
  margin: 50px 0 20px; padding-bottom: 11px; border-bottom: 1px solid var(--line);
}
.module-band h2 { font-family: var(--mono); font-size: 1.12rem; }
.module-band .src {
  margin-left: auto; font: 500 11px/1 var(--mono); color: var(--fg-dim);
  min-width: 0; overflow-wrap: anywhere;
}

.sym {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); margin-bottom: 17px; overflow: hidden;
  scroll-margin-top: calc(var(--nav-h) + 18px);
}
.sym-head {
  display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
  padding: 15px 18px; border-bottom: 1px solid var(--line); background: var(--surface-2);
}
.sym-name {
  font: 620 1.01rem/1.35 var(--mono); letter-spacing: -0.02em;
  min-width: 0; overflow-wrap: anywhere; word-break: break-word;
}
.sym-name .prefix { color: var(--fg-dim); font-weight: 400; }
.sym-anchor { color: var(--fg-dim); opacity: 0; transition: opacity .15s; font-size: .82rem; }
.sym:hover .sym-anchor { opacity: 1; }
.sym-src {
  margin-left: auto; font: 500 11.5px/1 var(--mono); color: var(--fg-dim);
  white-space: nowrap; min-width: 0; overflow: hidden; text-overflow: ellipsis;
}
.sym-body { padding: 17px 18px 19px; }
.sym-body > :first-child { margin-top: 0; }

.signature {
  font: 400 .87rem/1.78 var(--mono); background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: 8px;
  padding: 12px 14px; margin: 0 0 16px; overflow-x: auto;
  white-space: pre-wrap; word-break: break-word; overflow-wrap: anywhere;
  color: var(--fg-mid);
}
.signature .fn { color: var(--fg); font-weight: 600; }
.signature .arg { color: var(--a-cyan); }
.signature .ret { color: var(--a-violet); }
html[data-theme="light"] .signature .arg { color: #0e7490; }
html[data-theme="light"] .signature .ret { color: #6d28d9; }

.summary { color: var(--fg); margin: 0 0 13px; font-size: 1.01rem; max-width: 76ch; }
.prose { color: var(--fg-mid); font-size: .95rem; }
.prose p { margin: 0 0 13px; max-width: 76ch; }
.prose p:last-child { margin-bottom: 0; }

.field-head {
  font: 650 11.5px/1 var(--sans); letter-spacing: .085em; text-transform: uppercase;
  color: var(--fg-dim); margin: 20px 0 9px;
}

table.params { font-size: .895rem; }
table.params th { padding: 9px 13px; }
table.params td { padding: 9px 13px; }
table.params td.pname { font-family: var(--mono); color: var(--fg); white-space: nowrap; font-weight: 550; }
table.params td.ptype { font-family: var(--mono); color: var(--a-cyan); font-size: .93em; }
html[data-theme="light"] table.params td.ptype { color: #0e7490; }
table.params td.pdef { font-family: var(--mono); color: var(--fg-dim); font-size: .93em; white-space: nowrap; }
table.params td.pdesc { color: var(--fg-mid); min-width: 210px; }

/* ------------------------------------------------------------- admonition */

.adm {
  border-left: 3px solid var(--line-strong); border-radius: 0 8px 8px 0;
  padding: 14px 17px; margin: 16px 0; background: var(--surface-2);
  font-size: .925rem;
}
.adm .adm-title { font-weight: 640; font-size: .74rem; letter-spacing: .09em; text-transform: uppercase; margin-bottom: 6px; }
.adm p { margin: 0; color: var(--fg-mid); }
.adm-note { border-left-color: var(--a-cyan); }
.adm-note .adm-title { color: var(--a-cyan); }
.adm-warn { border-left-color: var(--a-amber); }
.adm-warn .adm-title { color: var(--a-amber); }
.adm-danger { border-left-color: var(--a-rose); }
.adm-danger .adm-title { color: var(--a-rose); }

/* ------------------------------------------------------------------- code */

pre {
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: 8px;
  padding: 15px 17px; overflow-x: auto; font-size: .875rem; line-height: 1.75; margin: 0 0 15px;
}
pre code { background: none; padding: 0; border: none; font-size: inherit; color: var(--fg); }
:not(pre) > code {
  background: var(--surface-2); border: 1px solid var(--line);
  padding: 1.5px 5px; border-radius: 5px; font-size: .87em; color: var(--fg);
}
.tok-kw { color: var(--a-violet); }
.tok-str { color: var(--a-green); }
.tok-num { color: var(--a-amber); }
.tok-com { color: var(--fg-dim); font-style: italic; }
.tok-fn { color: var(--a-cyan); }
.tok-pre { color: var(--fg-dim); }
html[data-theme="light"] .tok-kw { color: #7c3aed; }
html[data-theme="light"] .tok-str { color: #3f6212; }
html[data-theme="light"] .tok-num { color: #b45309; }
html[data-theme="light"] .tok-fn { color: #0e7490; }

/* ------------------------------------------------------------------ badge */

.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font: 650 11px/1 var(--mono); letter-spacing: .04em; text-transform: uppercase;
  padding: 4px 7px; border-radius: 5px; border: 1px solid var(--line); color: var(--fg-mid);
  white-space: nowrap;
}
.badge-t1 { color: var(--a-green); border-color: color-mix(in srgb, var(--a-green) 40%, transparent); }
.badge-t2 { color: var(--a-cyan); border-color: color-mix(in srgb, var(--a-cyan) 40%, transparent); }
.badge-t3 { color: var(--a-violet); border-color: color-mix(in srgb, var(--a-violet) 40%, transparent); }
.badge-t4 { color: var(--a-amber); border-color: color-mix(in srgb, var(--a-amber) 40%, transparent); }
.badge-t5 { color: var(--a-rose); border-color: color-mix(in srgb, var(--a-rose) 40%, transparent); }
.badge-t6 { color: #38bdf8; border-color: rgba(56, 189, 248, .4); }
.badge-t7 { color: #94a3b8; border-color: rgba(148, 163, 184, .4); }
.badge-undoc { color: var(--a-amber); border-color: color-mix(in srgb, var(--a-amber) 40%, transparent); }

/* ----------------------------------------------------------------- search */

.search-modal {
  position: fixed; inset: 0; z-index: 100; display: none;
  background: color-mix(in srgb, #000 62%, transparent); backdrop-filter: blur(3px);
  padding: 11vh 20px 20px;
}
.search-modal.open { display: block; }
.search-box {
  max-width: 640px; margin: 0 auto; background: var(--surface);
  border: 1px solid var(--line-strong); border-radius: 13px; box-shadow: var(--shadow); overflow: hidden;
}
.search-box input {
  width: 100%; border: none; outline: none; background: transparent; color: var(--fg);
  padding: 17px 19px; font-size: 1rem; font-family: var(--sans);
  border-bottom: 1px solid var(--line);
}
.search-results { max-height: 56vh; overflow-y: auto; }
.search-results:empty { display: none; }
.sr-item { display: block; padding: 11px 19px; border-bottom: 1px solid var(--line); cursor: pointer; }
.sr-item:last-child { border-bottom: none; }
.sr-item.sel, .sr-item:hover { background: var(--surface-2); }
.sr-name { font: 550 .925rem/1.45 var(--mono); color: var(--fg); overflow-wrap: anywhere; }
.sr-meta { font-size: .8rem; color: var(--fg-dim); margin-top: 4px; display: flex; gap: 8px; align-items: center; }
.sr-empty { padding: 26px 19px; text-align: center; color: var(--fg-dim); font-size: .875rem; }

/* --------------------------------------------------------------- coverage */

.cov { display: flex; align-items: center; gap: 9px; font-size: .78rem; color: var(--fg-dim); }
.cov-bar { flex: 1; height: 4px; border-radius: 2px; background: var(--surface-2); overflow: hidden; max-width: 130px; }
.cov-fill {
  display: block; /* inline elements ignore height, which left the bar invisible */
  height: 100%; background: var(--grad-cov); border-radius: 2px; min-width: 2px;
}

/* ----------------------------------------------------------------- footer */

.footer { border-top: 1px solid var(--line); padding: 44px 0; color: var(--fg-mid); font-size: .9rem; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; display: flex; gap: 26px; flex-wrap: wrap; align-items: center; }
.footer a { color: var(--fg-mid); }
.footer a:hover { color: var(--accent); }
.footer .spacer { margin-left: auto; }

/* ------------------------------------------------------------- responsive */

/* Breakpoints are chosen around half-screen use: 1280px (half of a 2560 display)
   must keep the sidebar, and 960px (half of 1920) must drop to a single column
   with the full width available to content. */

@media (max-width: 1400px) {
  /* The right-hand "on this page" index is the first thing to go. */
  .layout { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); gap: 34px; }
  .toc { display: none; }
}

@media (max-width: 1150px) {
  :root { --sidebar-w: 232px; }
  .layout { gap: 26px; }
  .nav { gap: 14px; padding: 0 16px; }
  .nav-tabs > a, .nav-dd > a { padding: 7px 9px; font-size: .84rem; }
  .search-trigger { min-width: 0; }
  .search-trigger span, .search-trigger kbd { display: none; }
}

@media (max-width: 1080px) {
  /* Single column: content gets the whole width, and the API nav becomes a
     capped, scrollable block instead of a very long list above the page. */
  .layout { grid-template-columns: minmax(0, 1fr); gap: 0; padding: 0 18px; }
  .sidebar {
    position: static; max-height: 232px; overflow-y: auto;
    padding: 16px 0; margin-bottom: 8px;
    border-bottom: 1px solid var(--line);
  }
  .content { padding-top: 22px; }
  .wrap { padding: 0 18px; }
  .section { padding: 62px 0; }
  .grid-3, .grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }
}

@media (max-width: 860px) {
  .nav-tabs { display: none; }
  .hero-inner { grid-template-columns: minmax(0, 1fr); padding: 66px 18px 58px; }
  .hero-card { display: none; }
  .page-head h1 { font-size: 1.6rem; }
  .section { padding: 48px 0; }
  .section-head { margin-bottom: 30px; }
}

@media (max-width: 620px) {
  body { font-size: 14.5px; }
  .wrap, .layout { padding: 0 14px; }
  .sym-head { padding: 13px 14px; }
  .sym-body { padding: 15px 14px 16px; }
  .sym-src { flex: 1 0 100%; margin-left: 0; text-align: left; }
  .signature { font-size: .78rem; }
  table.params td.pdesc { min-width: 150px; }
  .hero h1 { font-size: 2.1rem; }
  .footer-inner { gap: 14px; }
  .footer .spacer { margin-left: 0; flex-basis: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
}


/* ---------------------------------------------------------------- gallery */

.fig {
  border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
  background: var(--surface); transition: border-color .2s, transform .2s;
  display: flex; flex-direction: column; min-width: 0;
}
.fig:hover { border-color: var(--line-strong); transform: translateY(-2px); }

.fig-media {
  /* The top padding is a strip reserved for .fig-expand. Figures are trimmed to
     their content, so a badge overlaid on the image would cover part of it. */
  position: relative; padding: 54px 22px 8px;
  background:
    radial-gradient(120% 90% at 50% 0%, color-mix(in srgb, var(--a-cyan) 6%, transparent), transparent 70%),
    var(--bg-soft);
  cursor: zoom-in;
}
.fig-media img { display: block; width: 100%; height: auto; }
/* Click-to-zoom cue. Always shown, never hover-gated: a hover-only hint gives no
   sign at rest and never appears on touch screens. Drawn in the accent gradient
   with dark ink, like .btn-primary, so it stands out against the pale media well
   in both themes. */
.fig-expand {
  position: absolute; top: 12px; right: 12px; z-index: 1;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 13px 7px 10px; border-radius: 999px;
  background: var(--grad); color: #06210a;
  font-size: 13px; font-weight: 700; line-height: 1; letter-spacing: .01em;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .28), inset 0 0 0 1px rgba(255, 255, 255, .22);
  pointer-events: none;
  transition: transform .18s, filter .18s, box-shadow .18s;
}
.fig-expand svg { width: 18px; height: 18px; flex: none; }
.fig:hover .fig-expand {
  transform: scale(1.06); filter: brightness(1.08);
  box-shadow: 0 4px 16px rgba(0, 0, 0, .34), inset 0 0 0 1px rgba(255, 255, 255, .3);
}

.fig-body { padding: 18px 22px 22px; border-top: 1px solid var(--line); }
.fig-body h3 { font-size: 1.04rem; margin-bottom: 7px; }
.fig-body p { margin: 0; color: var(--fg-mid); font-size: .935rem; max-width: 80ch; }

.fig-note {
  margin: 15px 0 0; padding-left: 12px;
  border-left: 2px solid var(--accent);
  font-size: .855rem; line-height: 1.6; color: var(--fg-dim);
  max-width: 46ch;
}
.fig-note b { color: var(--fg-mid); font-weight: 600; }
.fig-note code { font-size: .93em; }

.fig-kicker {
  display: block; font: 600 12px/1 var(--mono); letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 10px;
}
.fig-meta {
  margin-top: 13px; display: flex; flex-wrap: wrap; gap: 7px;
}
.fig-meta span {
  font: 500 11.5px/1 var(--mono); color: var(--fg-mid);
  border: 1px solid var(--line); border-radius: 5px; padding: 5px 9px;
}

.fig-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); }

/* The small figures differ a lot in image aspect and caption length. A grid row
   stretches every card to the tallest in it, leaving dead space under the short
   ones; column flow lets each card end where its content ends and the next one
   begin there. */
.fig-gallery { columns: 3 340px; column-gap: 18px; }
.fig-gallery .fig {
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  margin: 0 0 18px;
}

/* ---------------------------------------------------- showcase cards */

/* The landing page's way into each gallery: a link styled as a .card, never a
   .fig -- site.js zooms any .fig-media on click. */
.section-card { padding: 0; display: flex; flex-direction: column; color: inherit; }
.section-card:hover { color: inherit; }
/* A fixed 16:10 well whatever the cover's shape. min-height: 0 matters: the well
   is a flex item, and without it a near-square cover's intrinsic height would
   stretch the well and misalign the three cards. */
.section-card-media {
  aspect-ratio: 16 / 10; min-height: 0; overflow: hidden; padding: 16px 18px;
  display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(120% 90% at 50% 0%, color-mix(in srgb, var(--a-cyan) 6%, transparent), transparent 70%),
    var(--bg-soft);
  border-bottom: 1px solid var(--line);
}
.section-card-media img { display: block; max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.section-card-body { padding: 18px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.section-card-body h3 { font-size: 1.15rem; margin-bottom: 8px; }
.section-card-body p { margin: 0 0 16px; color: var(--fg-mid); font-size: .935rem; }
.section-card-go { margin-top: auto; font-size: .875rem; font-weight: 600; color: var(--fg-mid); transition: color .15s; }
.section-card:hover .section-card-go { color: var(--accent); }

/* ------------------------------------------------------------- lightbox */

.lightbox {
  position: fixed; inset: 0; z-index: 120; display: none;
  background: color-mix(in srgb, #000 88%, transparent);
  backdrop-filter: blur(6px); padding: 4vh 4vw;
  align-items: center; justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 92vh; object-fit: contain; }
.lightbox-close {
  position: absolute; top: 18px; right: 22px;
  width: 38px; height: 38px; display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,.22); border-radius: 9px;
  background: rgba(0,0,0,.35); color: #e8ebf2; cursor: pointer; font-size: 19px;
}
.lightbox-cap {
  position: absolute; bottom: 20px; left: 0; right: 0; text-align: center;
  color: #a8b0c2; font-size: .85rem; padding: 0 20px;
}


/* ------------------------------------------- lightbox: figure and code */

/* Wide enough and the example sits beside the figure; below 860px it stacks
   under it. 860px is not a new number -- it is where this site already stops
   being a wide screen and hides the nav tabs, so "mobile" means one thing
   site-wide. The stage is content-sized, never full-bleed: a click beside it
   still has to reach .lightbox itself, which is what closes the overlay.
   These rules are additions. The flat .lightbox img / .lightbox-cap rules above
   are what the frozen API archives still render with, and must not change. */
.lightbox-stage {
  display: flex; align-items: center; gap: 22px;
  max-width: 100%; max-height: 92vh; min-width: 0;
}

/* max-height belongs here rather than on the image: the caption sits in flow
   beneath it now, so image plus caption is what has to fit. min-height: 0 is
   what lets a flex item shrink below its intrinsic size -- without it a tall
   figure pushes its own caption off the bottom of the screen. */
.lightbox-figure {
  display: flex; flex-direction: column; align-items: center;
  flex: 1 1 auto; min-width: 0; min-height: 0; max-height: 92vh;
}
.lightbox-figure img {
  flex: 1 1 auto; min-height: 0;
  max-width: 100%; max-height: 100%; width: auto; height: auto;
  object-fit: contain;
}
.lightbox-figure .lightbox-cap {
  position: static; flex: none; margin-top: 14px; padding: 0; text-align: center;
}

/* Shown only when the figure actually carries a snippet -- the benchmark charts
   do not, and an empty pane beside them would read as a broken one. */
.lightbox-code { display: none; }
.lightbox.has-code .lightbox-code {
  display: flex; flex-direction: column;
  /* No shrink: .lightbox-figure's basis is auto, i.e. the image's intrinsic
     width, which is frequently ~2000px. A shrinkable pane loses that
     negotiation and collapses to its minimum, clipping the code. */
  flex: 0 0 clamp(320px, 32vw, 560px);
  min-width: 0; max-height: 92vh; overflow: hidden;
  border: 1px solid var(--line-strong); border-radius: 10px;
  background: var(--surface);
}
.lightbox-code-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 9px 10px 9px 14px; border-bottom: 1px solid var(--line);
  font: 600 11.5px/1 var(--mono); letter-spacing: .1em;
  text-transform: uppercase; color: var(--fg-dim);
}
.lightbox-copy {
  border: 1px solid var(--line-strong); border-radius: 7px;
  background: var(--bg-soft); color: var(--fg-mid);
  font: 600 11px/1 var(--sans); letter-spacing: .04em; text-transform: none;
  padding: 6px 11px; cursor: pointer;
}
.lightbox-copy:hover { color: var(--fg); border-color: var(--accent); }
.lightbox-copy.copied { color: var(--accent); border-color: var(--accent); }

.lightbox-code-body { overflow: auto; overscroll-behavior: contain; min-height: 0; }
.lightbox-code-body pre {
  margin: 0; border: 0; border-radius: 0; background: none; font-size: .8rem;
}

@media (max-width: 860px) {
  /* Stacked, and the overlay scrolls rather than the code pane: a scroll region
     nested inside a fixed overlay on a touch screen is a coin flip over which
     one actually moves. Capping the image is what makes the code beneath it
     discoverable without scrolling to find out it is there. */
  .lightbox { align-items: flex-start; overflow-y: auto; padding: 3vh 4vw 6vh; }
  .lightbox-stage {
    flex-direction: column; align-items: stretch; max-height: none; gap: 16px;
  }
  .lightbox-figure { max-height: none; }
  .lightbox-figure img { max-height: 55vh; }
  .lightbox.has-code .lightbox-code { flex: none; max-height: none; }
  .lightbox-code-body pre { font-size: .84rem; }
  .lightbox-code-body { overflow: visible; }
}

/* The overlay is the scroll container while it is open; without this the page
   behind it scrolls instead. */
body.lb-open { overflow: hidden; }


/* ------------------------------------------------------- reading comfort */

/* Avoid single-word last lines in prose and lopsided headings. */
p, li { text-wrap: pretty; }
h1, h2, h3, .fig-body h3, .card h3 { text-wrap: balance; }

/* Lists in documentation prose were inheriting tight body spacing. */
.prose ul, .card ul { line-height: 1.65; }
.prose li { margin: 5px 0; }

/* Inline code sat slightly small against the surrounding text. */
:not(pre) > code { font-size: .9em; }

/* Long numeric tables are easier to compare with aligned figures. */
.num, td.pdef, .count, .cov { font-variant-numeric: tabular-nums; }