:root{--c-bg:#FFF8EB;--c-panel:#FCEFDD;--c-text:#201922;--c-muted:#715568;--c-grid:#EADBD9;--c-axis:#B8969F;--c-pri:#603050;--c-sec:#D65E64;--c-ter:#C7A4E9;--c-acc:#FF722F}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--c-bg:#201922;--c-panel:#2A2030;--c-text:#FFF8EB;--c-muted:#D8BFCB;--c-grid:#3B2E3E;--c-axis:#98658F;--c-pri:#FFC24D;--c-sec:#EE8B79;--c-ter:#A88CC9;--c-acc:#FF8B52}}:root[data-theme=dark]{--c-bg:#201922;--c-panel:#2A2030;--c-text:#FFF8EB;--c-muted:#D8BFCB;--c-grid:#3B2E3E;--c-axis:#98658F;--c-pri:#FFC24D;--c-sec:#EE8B79;--c-ter:#A88CC9;--c-acc:#FF8B52}@media print{:root,:root:not([data-theme=light]),:root[data-theme=dark]{--c-bg:#FFF8EB;--c-panel:#FCEFDD;--c-text:#201922;--c-muted:#715568;--c-grid:#EADBD9;--c-axis:#B8969F;--c-pri:#603050;--c-sec:#D65E64;--c-ter:#C7A4E9;--c-acc:#FF722F}}.chart .c-bg{fill:var(--c-bg)}.chart .c-panel{fill:var(--c-panel)}.chart .c-text{fill:var(--c-text)}.chart .c-muted{fill:var(--c-muted)}.chart .c-on-pri{fill:var(--c-bg)}.chart .c-pri{fill:var(--c-pri)}.chart .c-sec{fill:var(--c-sec)}.chart .c-ter{fill:var(--c-ter)}.chart .c-acc{fill:var(--c-acc)}.chart .c-grid{stroke:var(--c-grid)}.chart .c-axis{stroke:var(--c-axis)}.chart .c-ref{stroke:var(--c-muted)}.chart .c-ink-line{stroke:var(--c-text)}.chart .c-pri-line{stroke:var(--c-pri)}.chart .c-sec-line{stroke:var(--c-sec)}.chart .c-ter-line{stroke:var(--c-ter)}.chart .c-acc-line{stroke:var(--c-acc)}.chart .c-ref{stroke-dasharray:5 4}.chart text{font-family:system-ui, -apple-system, sans-serif}.chart .c-mono{font-family:ui-monospace, SF Mono, Menlo, Cascadia Code, Consolas, monospace}/* ember benchmark report. Palette variables (--c-*) and chart classes are
   generated by evals/render_html.py from evals/svg.py, so charts and page
   share one light/dark palette. System fonts only; no network loads. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font: 400 17px/1.65 system-ui, -apple-system, sans-serif;
  font-feature-settings: "kern", "liga";
  text-rendering: optimizeLegibility;
}
::selection { background: color-mix(in srgb, var(--c-ter) 45%, transparent); }
a { color: var(--c-pri); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--c-pri); outline-offset: 3px; border-radius: 4px; }
code, pre, .chips dd, .facts dd code, .tag {
  font-family: ui-monospace, SF Mono, Menlo, Cascadia Code, Consolas, monospace;
}
code {
  font-size: 0.88em;
  padding: 0.12em 0.4em;
  border-radius: 6px;
  background: var(--c-panel);
  border: 1px solid var(--c-grid);
}
strong { font-weight: 650; }

.skip {
  position: absolute; left: 16px; top: -48px; padding: 8px 14px; z-index: 10;
  background: var(--c-text); color: var(--c-bg); border-radius: 8px;
}
.skip:focus { top: 16px; }

/* Hero ------------------------------------------------------------------ */
.hero {
  position: relative;
  padding: 72px 32px 56px;
  border-bottom: 1px solid var(--c-grid);
  background:
    radial-gradient(60% 90% at 12% 40%, color-mix(in srgb, var(--c-acc) 16%, transparent), transparent 70%),
    radial-gradient(50% 80% at 92% 0%, color-mix(in srgb, var(--c-ter) 20%, transparent), transparent 70%),
    var(--c-bg);
}
.hero-inner {
  max-width: 1180px; margin: 0 auto;
  display: grid; grid-template-columns: 176px minmax(0, 1fr); gap: 48px; align-items: center;
}
.mascot svg { width: 100%; height: auto; display: block; filter: drop-shadow(0 18px 36px color-mix(in srgb, var(--c-acc) 28%, transparent)); }
.mascot .mascot-dark { display: none; }
:root[data-theme=dark] .mascot .mascot-light { display: none; }
:root[data-theme=dark] .mascot .mascot-dark { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme=light]) .mascot .mascot-light { display: none; }
  :root:not([data-theme=light]) .mascot .mascot-dark { display: block; }
}
.eyebrow {
  margin: 0 0 12px; font-size: 12.5px; font-weight: 650; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--c-muted);
}
.hero h1 {
  margin: 0; font-size: clamp(2.4rem, 5.2vw, 3.9rem); line-height: 1.04;
  font-weight: 780; letter-spacing: -0.035em;
}
.lede { margin: 18px 0 26px; max-width: 46rem; font-size: 1.22rem; line-height: 1.5; color: var(--c-muted); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; }
.chips div {
  display: flex; gap: 8px; align-items: baseline; padding: 6px 12px;
  border: 1px solid var(--c-grid); border-radius: 999px;
  background: color-mix(in srgb, var(--c-panel) 80%, transparent);
}
.chips dt { font-size: 11.5px; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-muted); }
.chips dd { margin: 0; font-size: 13px; }
.theme {
  position: absolute; top: 20px; right: 24px;
  font: 600 13px/1 system-ui, -apple-system, sans-serif; color: var(--c-text);
  padding: 9px 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--c-grid); background: var(--c-panel);
}
.theme:hover { border-color: var(--c-axis); }
.theme span { color: var(--c-pri); }

/* Layout and contents ----------------------------------------------------- */
.layout {
  max-width: 1180px; margin: 0 auto; padding: 0 32px;
  display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 64px;
}
.toc { position: sticky; top: 0; align-self: start; max-height: 100vh; overflow: auto; padding: 40px 0 32px; font-size: 14px; }
.toc-title { margin: 0 0 10px; font-size: 12px; font-weight: 650; letter-spacing: 0.14em; text-transform: uppercase; color: var(--c-muted); }
.toc ol { list-style: none; margin: 0; padding: 0; }
.toc a {
  display: flex; gap: 10px; padding: 5px 10px; margin-left: -10px; border-radius: 8px;
  color: var(--c-muted); text-decoration: none; border-left: 2px solid transparent;
}
.toc a span { min-width: 1.4em; font-variant-numeric: tabular-nums; opacity: 0.7; }
.toc a:hover { color: var(--c-text); background: var(--c-panel); }
.toc a[aria-current] { color: var(--c-pri); border-left-color: var(--c-pri); background: var(--c-panel); font-weight: 600; }
main { min-width: 0; padding: 24px 0 64px; max-width: 900px; }

/* Sections and prose ------------------------------------------------------ */
section { padding-top: 40px; }
section + section { border-top: 1px solid var(--c-grid); margin-top: 32px; }
h2 {
  display: flex; align-items: center; gap: 14px; margin: 0 0 22px;
  font-size: 1.85rem; line-height: 1.2; font-weight: 750; letter-spacing: -0.02em;
}
.sec-num {
  display: inline-grid; place-items: center; min-width: 2.1rem; height: 2.1rem; padding: 0 8px;
  border-radius: 10px; font-size: 1rem; font-variant-numeric: tabular-nums;
  color: var(--c-bg); background: var(--c-pri);
}
h3 { margin: 34px 0 12px; font-size: 1.22rem; line-height: 1.3; font-weight: 700; letter-spacing: -0.01em; }
h4 { margin: 0; font-size: 1rem; font-weight: 700; }
p, .list { max-width: 44rem; }
p { margin: 0 0 16px; }
.list { padding-left: 1.2em; margin: 0 0 18px; }
.list li { margin: 0 0 10px; padding-left: 4px; }
.list li::marker { color: var(--c-pri); }
.cite { font-size: 0.78em; vertical-align: super; line-height: 0; text-decoration: none; font-weight: 650; padding: 0 1px; }

/* Headline numbers -------------------------------------------------------- */
.kpis { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 0 0 12px; }
.kpi {
  position: relative; overflow: hidden; padding: 18px 18px 16px;
  border: 1px solid var(--c-grid); border-radius: 18px; background: var(--c-panel);
}
.kpi::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: var(--c-ter); }
.kpi.good::before { background: var(--c-pri); }
.kpi.warn::before { background: var(--c-sec); }
.kpi-label { margin: 0 0 6px; font-size: 13px; font-weight: 650; color: var(--c-muted); }
.kpi-value { margin: 0; font-size: 2.1rem; line-height: 1.1; font-weight: 780; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.kpi-note { margin: 8px 0 0; font-size: 13px; line-height: 1.4; color: var(--c-muted); }

/* Callouts ---------------------------------------------------------------- */
.callout {
  margin: 0 0 12px; padding: 14px 18px 4px;
  border: 1px solid var(--c-grid); border-left: 4px solid var(--c-ter);
  border-radius: 14px; background: var(--c-panel);
}
.callout.good { border-left-color: var(--c-pri); }
.callout.warn { border-left-color: var(--c-sec); }
.callout-title { display: flex; align-items: center; gap: 10px; margin: 0 0 6px; }
.callout p:last-child { margin-bottom: 10px; max-width: none; }
.tone {
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 2px 8px; border-radius: 999px; border: 1px solid var(--c-grid); color: var(--c-muted);
}
.icon { width: 16px; height: 16px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.callout .icon { color: var(--c-ter); }
.callout.good .icon { color: var(--c-pri); }
.callout.warn .icon { color: var(--c-sec); }

/* Tables ------------------------------------------------------------------ */
.table-wrap { overflow-x: auto; margin: 6px 0 22px; border: 1px solid var(--c-grid); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; line-height: 1.45; font-variant-numeric: tabular-nums; }
caption { caption-side: bottom; text-align: left; padding: 10px 14px; font-size: 13px; color: var(--c-muted); border-top: 1px solid var(--c-grid); }
th {
  text-align: left; padding: 10px 14px; white-space: nowrap; background: var(--c-panel);
  font-size: 11.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-muted);
  border-bottom: 1px solid var(--c-axis);
}
td { padding: 9px 14px; vertical-align: top; border-bottom: 1px solid var(--c-grid); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: color-mix(in srgb, var(--c-panel) 70%, transparent); }
td.num { text-align: right; white-space: nowrap; }
td code { font-size: 0.86em; }
.pill {
  display: inline-flex; align-items: center; gap: 5px; padding: 2px 9px 2px 7px; border-radius: 999px;
  font-size: 12.5px; font-weight: 650; white-space: nowrap;
}
.pill .icon { width: 13px; height: 13px; stroke-width: 2.2; }
.pill.good { color: var(--c-pri); background: color-mix(in srgb, var(--c-pri) 13%, transparent); }
.pill.bad { color: var(--c-text); background: color-mix(in srgb, var(--c-sec) 24%, transparent); }
.pill.bad .icon { color: var(--c-sec); }
.filters {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; margin: 6px 0 12px;
  font-size: 14px; color: var(--c-muted);
}
.filters select {
  font: inherit; color: var(--c-text); background: var(--c-panel);
  border: 1px solid var(--c-grid); border-radius: 8px; padding: 5px 8px; margin-left: 6px;
}
.filters output { margin-left: auto; font-variant-numeric: tabular-nums; }

/* Figures ----------------------------------------------------------------- */
.fig { margin: 8px 0 28px; }
.fig-media { padding: 18px; border: 1px solid var(--c-grid); border-radius: 18px; background: var(--c-panel); }
.fig-media svg, .mini svg { display: block; width: 100%; height: auto; }
.chart .c-panel { fill: var(--c-bg); }
.mini .chart .c-panel { fill: var(--c-panel); }
figcaption { margin: 10px 4px 0; font-size: 14px; line-height: 1.5; color: var(--c-muted); }
.fig-label { font-weight: 700; color: var(--c-text); margin-right: 4px; }
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); gap: 0 20px; }
.formula {
  margin: 4px 0 14px; padding: 12px 16px; border-radius: 12px; overflow-x: auto;
  background: var(--c-panel); border: 1px dashed var(--c-axis);
}
.formula code { background: none; border: 0; padding: 0; font-size: 14.5px; white-space: pre; }

/* Code -------------------------------------------------------------------- */
pre.code {
  margin: 4px 0 18px; padding: 14px 16px; overflow: auto; max-height: 340px;
  font-size: 13px; line-height: 1.55; border-radius: 12px;
  background: var(--c-panel); border: 1px solid var(--c-grid);
}
pre.code code { background: none; border: 0; padding: 0; font-size: inherit; }

/* Cards ------------------------------------------------------------------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 16px; margin: 8px 0 22px; }
.card {
  min-width: 0; padding: 16px 18px 6px; border-radius: 16px;
  border: 1px solid var(--c-grid); border-top: 4px solid var(--c-ter); background: var(--c-bg);
}
.card.bad { border-top-color: var(--c-sec); }
.card.warn { border-top-color: var(--c-acc); }
.card-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 12px; margin-bottom: 12px; }
.card-head h4 { font-family: ui-monospace, SF Mono, Menlo, Cascadia Code, Consolas, monospace; font-size: 14.5px; }
.tag { font-size: 12px; color: var(--c-muted); }
.facts { display: grid; gap: 6px; margin: 0 0 12px; font-size: 14px; }
.facts div { display: grid; grid-template-columns: 128px minmax(0, 1fr); gap: 12px; }
.facts dt { font-size: 12px; font-weight: 650; color: var(--c-muted); padding-top: 2px; }
.facts dd { margin: 0; overflow-wrap: anywhere; }
.card .table-wrap { margin-bottom: 12px; }
.card pre.code { max-height: 220px; font-size: 12.5px; background: var(--c-panel); white-space: pre-wrap; overflow-wrap: anywhere; }
.mini { margin: 0 0 12px; padding: 10px 12px; border-radius: 12px; background: var(--c-panel); }

/* Definitions and references ---------------------------------------------- */
.defs { margin: 0 0 18px; display: grid; gap: 2px; }
.defs div { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 18px; padding: 10px 0; border-bottom: 1px solid var(--c-grid); }
.defs dt { font-weight: 650; }
.defs dd { margin: 0; }
.refs { padding-left: 1.6em; font-size: 15px; }
.refs li { margin: 0 0 10px; padding-left: 4px; }
.refs li:target { background: color-mix(in srgb, var(--c-acc) 14%, transparent); border-radius: 6px; }
.refs a { overflow-wrap: anywhere; font-size: 14px; }

.footer { border-top: 1px solid var(--c-grid); padding: 28px 32px 48px; text-align: center; font-size: 14px; color: var(--c-muted); }
.footer p { margin: 0 auto; max-width: none; }

/* Responsive -------------------------------------------------------------- */
@media (max-width: 1080px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .toc { position: static; max-height: none; padding: 28px 0 0; }
  .toc ol { columns: 2; column-gap: 24px; }
  main { max-width: none; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .hero { padding: 64px 20px 40px; }
  .hero-inner { grid-template-columns: 1fr; gap: 20px; }
  .mascot { width: 112px; }
  .layout { padding: 0 18px; }
  .toc ol { columns: 1; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cards { grid-template-columns: minmax(0, 1fr); }
  .defs div, .facts div { grid-template-columns: minmax(0, 1fr); gap: 2px; }
}

/* Print ------------------------------------------------------------------- */
@media print {
  @page { size: A4; margin: 14mm 13mm 16mm; }
  body { font-size: 10.5pt; line-height: 1.5; background: #fff; }
  .toc, .theme, .filters, .skip { display: none !important; }
  .layout { display: block; max-width: none; padding: 0; }
  main { max-width: none; padding: 0; }
  .hero { padding: 0 0 16pt; background: none; border-bottom: 1px solid var(--c-grid); }
  .hero-inner { grid-template-columns: 96px 1fr; gap: 20pt; }
  .mascot svg { filter: none; }
  section { padding-top: 14pt; }
  section + section { margin-top: 14pt; }
  h2, h3 { break-after: avoid; }
  .fig, .kpi, .callout, .card, table, .formula, pre { break-inside: avoid; }
  .fig-media { padding: 6pt; }
  pre.code, .card pre.code { max-height: none; white-space: pre-wrap; }
  tr[hidden] { display: table-row !important; }
  .refs a::after, p a[href^="http"]::after { content: " <" attr(href) ">"; font-size: 0.85em; color: var(--c-muted); overflow-wrap: anywhere; }
  .refs a::after { content: none; }
  .kpis { grid-template-columns: repeat(3, 1fr); }
  .cards { grid-template-columns: 1fr 1fr; }
}

/* Text version of flow diagrams ------------------------------------------- */
.fig-text { margin: 8px 4px 0; }
.fig-text summary { cursor: pointer; font-size: 13px; color: var(--c-muted); }
.fig-text pre.code { margin-top: 8px; max-height: none; font-size: 12.5px; }
@media print { .fig-text { display: none; } }

.hero { background: none; border-bottom: 0; }