/* YontaCAD website. Colours come from docs/brand/tokens.json; build.py writes them where @tokens is. */

:root { --paper: #F6F7F9; --surface: #FFFFFF; --hairline: #D9DDE5; --ink: #14171F; --ink-muted: #586072; --layout-blue: #2747E0; --on-layout-blue: #FFFFFF; --brand-navy: #212547; --brand-amber: #ECAB40; --graphite: #14171F; --good: #1E7F52; --warning: #9A5B00; --critical: #C2302B; --state-hover: #EEF0FC; --state-pressed: #DCE2FA; --primary-hover: #2541C9; --primary-pressed: #223CB2; --field-border: #8A91A0; --disabled-ink: #666E7E; --disabled-fill: #F6F7F9; --icon-eye-visible: #586072; --icon-eye-hidden: #666E7E; --icon-eye-hover: #14171F; --icon-eye-selected: #FFFFFF; --critical-tint: #FAEEEE; --warning-tint: #F7F2EB; --good-tint: #EDF5F1; --axis-x: #D1342B; --axis-y: #2E8540; --axis-z: #2563EB; --wordmark: var(--brand-navy); --paper-light: #F6F7F9; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --paper: #0F1117; --surface: #181B23; --hairline: #2A2F3B; --ink: #ECEEF3; --ink-muted: #9AA2B5; --layout-blue: #7B93FF; --on-layout-blue: #0F1117; --good: #3CC487; --warning: #F0A43A; --critical: #FF7A72; --state-hover: #24293D; --state-pressed: #2C334F; --primary-hover: #899EFE; --primary-pressed: #6A7EDA; --field-border: #5F6779; --disabled-ink: #7E8699; --disabled-fill: #0F1117; --icon-eye-visible: #9AA2B5; --icon-eye-hidden: #7E8699; --icon-eye-hover: #ECEEF3; --icon-eye-selected: #0F1117; --critical-tint: #34262C; --warning-tint: #322B26; --good-tint: #1C2F2F; --axis-x: #FF6B5E; --axis-y: #4ACB6A; --axis-z: #6A9BFF; --wordmark: var(--brand-amber); } }
:root[data-theme="dark"] { --paper: #0F1117; --surface: #181B23; --hairline: #2A2F3B; --ink: #ECEEF3; --ink-muted: #9AA2B5; --layout-blue: #7B93FF; --on-layout-blue: #0F1117; --good: #3CC487; --warning: #F0A43A; --critical: #FF7A72; --state-hover: #24293D; --state-pressed: #2C334F; --primary-hover: #899EFE; --primary-pressed: #6A7EDA; --field-border: #5F6779; --disabled-ink: #7E8699; --disabled-fill: #0F1117; --icon-eye-visible: #9AA2B5; --icon-eye-hidden: #7E8699; --icon-eye-hover: #ECEEF3; --icon-eye-selected: #0F1117; --critical-tint: #34262C; --warning-tint: #322B26; --good-tint: #1C2F2F; --axis-x: #FF6B5E; --axis-y: #4ACB6A; --axis-z: #6A9BFF; --wordmark: var(--brand-amber); }
.swatch-paper{background:var(--paper)}.swatch-surface{background:var(--surface)}.swatch-hairline{background:var(--hairline)}.swatch-ink{background:var(--ink)}.swatch-ink-muted{background:var(--ink-muted)}.swatch-layout-blue{background:var(--layout-blue)}.swatch-on-layout-blue{background:var(--on-layout-blue)}.swatch-brand-navy{background:var(--brand-navy)}.swatch-brand-amber{background:var(--brand-amber)}.swatch-graphite{background:var(--graphite)}.swatch-good{background:var(--good)}.swatch-warning{background:var(--warning)}.swatch-critical{background:var(--critical)}.swatch-state-hover{background:var(--state-hover)}.swatch-state-pressed{background:var(--state-pressed)}.swatch-primary-hover{background:var(--primary-hover)}.swatch-primary-pressed{background:var(--primary-pressed)}.swatch-field-border{background:var(--field-border)}.swatch-disabled-ink{background:var(--disabled-ink)}.swatch-disabled-fill{background:var(--disabled-fill)}.swatch-icon-eye-visible{background:var(--icon-eye-visible)}.swatch-icon-eye-hidden{background:var(--icon-eye-hidden)}.swatch-icon-eye-hover{background:var(--icon-eye-hover)}.swatch-icon-eye-selected{background:var(--icon-eye-selected)}.swatch-critical-tint{background:var(--critical-tint)}.swatch-warning-tint{background:var(--warning-tint)}.swatch-good-tint{background:var(--good-tint)}.swatch-axis-x{background:var(--axis-x)}.swatch-axis-y{background:var(--axis-y)}.swatch-axis-z{background:var(--axis-z)}

/* One typeface: Archivo (docs/brand/README.md, Type). No monospaced face; digits line up with tabular figures. */
@font-face {
  font-family: "Archivo";
  src: url("/assets/Archivo-Variable.619276039d.woff2") format("woff2");
  font-weight: 400 700;
  font-stretch: 100% 112%;
  font-style: normal;
  font-display: swap;
}
/* A metric-matched stand-in while Archivo loads, so the swap does not move the layout. */
@font-face {
  font-family: "Archivo Fallback";
  src: local("Arial"), local("Liberation Sans");
  size-adjust: 98.6%;
  ascent-override: 89%;
  descent-override: 21.3%;
  line-gap-override: 0%;
}

:root {
  --font-sans: "Archivo", "Archivo Fallback", system-ui, -apple-system, "Segoe UI", sans-serif;
  --figures: "tnum" 1, "zero" 1;
  --measure: 68ch;
  --page: 72rem;
  --gutter: 16px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  color-scheme: light dark;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 100%;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
/* Light text on a dark surface reads better with a little more leading and tracking. */
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) body { line-height: 1.55; letter-spacing: 0.005em; } }
:root[data-theme="dark"] body { line-height: 1.55; letter-spacing: 0.005em; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
}

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-variation-settings: "wdth" 112;
  line-height: 1.2;
  margin: 0 0 0.5em;
  text-wrap: balance;
}
h1 { font-size: clamp(1.9rem, 1.3rem + 2.4vw, 2.75rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.4rem, 1.15rem + 1vw, 1.75rem); line-height: 1.3; margin-top: 2.5rem; }
h3 { font-size: 1.25rem; line-height: 1.4; font-variation-settings: "wdth" 100; margin-top: 1.5rem; }
p, ul, ol, dl, table, pre, figure { margin: 0 0 1rem; }
p, li, dd { max-width: var(--measure); text-wrap: pretty; }
ul, ol { padding-left: 1.4rem; }
main li + li { margin-top: 0.3rem; }
a { color: var(--layout-blue); text-decoration-thickness: 1px; text-underline-offset: 0.15em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--layout-blue); outline-offset: 2px; border-radius: 2px; }
::selection { background: var(--state-pressed); color: var(--ink); }
:root { accent-color: var(--layout-blue); scrollbar-color: var(--field-border) transparent; }
/* Code and data stay in Archivo: tabular figures and a slashed zero instead of a second typeface. */
code, kbd, pre { font-family: var(--font-sans); font-size: 0.9em; font-feature-settings: var(--figures); font-variant-numeric: tabular-nums slashed-zero; }
code { background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-sm); padding: 0.05em 0.3em; overflow-wrap: anywhere; }
pre { background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-md); padding: 1rem; overflow-x: auto; line-height: 1.55; white-space: pre; }
pre code { background: none; border: 0; padding: 0; font-size: 0.9rem; }
hr { border: 0; border-top: 1px solid var(--hairline); margin: 2rem 0; }
strong { font-weight: 600; }
img, svg { max-width: 100%; height: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; font-variant-numeric: tabular-nums; }
th, td { text-align: left; vertical-align: top; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--hairline); }
th { font-weight: 600; font-size: 0.8125rem; color: var(--ink-muted); }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.5rem 1.5rem; }
dt { font-weight: 600; }
dd { margin: 0; }
.muted { color: var(--ink-muted); }
.small { font-size: 0.875rem; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.skip {
  position: absolute; left: var(--gutter); top: -100px; z-index: 10;
  background: var(--layout-blue); color: var(--on-layout-blue); padding: 0.5rem 0.75rem; border-radius: var(--radius-sm);
}
.skip:focus { top: var(--gutter); }

.wrap { width: 100%; max-width: var(--page); margin: 0 auto; padding: 0 var(--gutter); }

/* Header */
.site-header { border-bottom: 1px solid var(--hairline); background: var(--paper); }
.site-header .wrap { display: flex; align-items: center; gap: 1rem; min-height: 4rem; flex-wrap: wrap; padding-top: 0.5rem; padding-bottom: 0.5rem; }
.logo { display: inline-flex; align-items: center; text-decoration: none; margin-right: auto; }
.logo svg { height: 2rem; width: auto; display: block; }
.logo .wordmark, .hero .lockup .wordmark { fill: var(--wordmark); }
.footer-logo { margin: 0 0 0.75rem; }
.footer-logo svg { height: 1.5rem; }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.1rem 0.25rem; }
.site-nav a { display: inline-block; padding: 0.5rem 0.6rem; text-decoration: none; color: var(--ink); border-radius: var(--radius-sm); font-weight: 500; }
.site-nav a:hover { background: var(--surface); text-decoration: underline; }
.site-nav a[aria-current="page"] { color: var(--layout-blue); box-shadow: inset 0 -2px 0 var(--layout-blue); border-radius: 0; }
.lang { display: flex; gap: 0.25rem; align-items: center; }
.lang a { padding: 0.5rem 0.6rem; text-decoration: none; color: var(--ink-muted); border-radius: var(--radius-sm); font-weight: 600; font-size: 0.85rem; letter-spacing: 0.04em; }
.lang a[aria-current="true"] { color: var(--ink); background: var(--surface); border: 1px solid var(--hairline); }
.lang a:hover { text-decoration: underline; }
@media (max-width: 48rem) {
  /* One scrollable row of links: the header's height does not depend on the font that renders it. */
  .site-header .wrap { flex-wrap: wrap; }
  .site-header .logo { order: 0; }
  .site-header .lang { order: 1; margin-left: auto; }
  .site-header .site-nav { order: 2; flex-basis: 100%; overflow-x: auto; scrollbar-width: thin; margin: 0 calc(-1 * var(--gutter)); padding: 0 var(--gutter) 0.25rem; mask-image: linear-gradient(to right, #000 calc(100% - 2.5rem), transparent); }
  .site-header .site-nav ul { padding-right: 2.5rem; }
  .site-header .site-nav ul { flex-wrap: nowrap; }
  .site-header .site-nav a { white-space: nowrap; }
}

/* Main */
main { flex: 1; padding: 2.5rem 0 4rem; }
.breadcrumb { font-size: 0.875rem; color: var(--ink-muted); margin-bottom: 1.5rem; }
.breadcrumb ol { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.35rem; }
.breadcrumb li { margin: 0; }
.breadcrumb li + li::before { content: "/"; margin-right: 0.35rem; color: var(--hairline); }
.breadcrumb a { color: var(--ink-muted); }
.lead { font-size: 1.2rem; line-height: 1.5; max-width: var(--measure); color: var(--ink); margin-bottom: 2rem; }
.page-title { margin-bottom: 0.75rem; }

/* Home */
.hero { padding: 1rem 0 2rem; }
.hero .lockup svg { width: min(100%, 28rem); height: auto; display: block; margin-bottom: 1.75rem; }
.hero h1 { font-size: clamp(1.6rem, 1.1rem + 2.2vw, 2.5rem); max-width: 26ch; }
.points { list-style: none; padding: 0; margin: 2rem 0; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
.points li { background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 1.25rem; margin: 0; max-width: none; }
.points h2 { font-size: 1.1rem; margin: 0 0 0.4rem; font-variation-settings: "wdth" 100; line-height: 1.4; }
.points p { margin: 0; color: var(--ink-muted); }
.status { border: 1px solid var(--hairline); border-left-color: var(--brand-amber); background: var(--surface); padding: 1rem 1.25rem; border-radius: var(--radius-md); margin: 2rem 0; max-width: var(--measure); }
.status .label { display: block; font-size: 0.8125rem; font-weight: 600; color: var(--ink-muted); margin-bottom: 0.25rem; }
.status p { margin: 0; }
.origin { color: var(--ink-muted); }
.actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin: 0.75rem 0 2rem; }
.button { display: inline-block; padding: 0.65rem 1.1rem; border-radius: var(--radius-md); text-decoration: none; font-weight: 600; border: 1px solid var(--layout-blue); }
.button.primary { background: var(--layout-blue); color: var(--on-layout-blue); }
.button.secondary { color: var(--layout-blue); background: transparent; }
.button:hover { text-decoration: underline; }
.button.primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.button.primary:active { background: var(--primary-pressed); border-color: var(--primary-pressed); }
.button.secondary:hover { background: var(--state-hover); }
.button.secondary:active { background: var(--state-pressed); }

/* Roadmap */
.camps { list-style: none; padding: 0; margin: 0 0 2rem; display: grid; gap: 0.75rem; }
.camps li { display: grid; grid-template-columns: 7rem 1fr; gap: 0.25rem 1rem; padding: 1rem 1.25rem; background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-lg); max-width: none; margin: 0; align-items: start; }
.camps li.current { border-color: var(--layout-blue); }
.camps .camp { font-weight: 700; }
.camps .camp small { font-variant-numeric: tabular-nums; }
.camps .camp small { display: block; font-weight: 400; color: var(--ink-muted); font-size: 0.85rem; }
.camps .line { margin: 0; max-width: none; }
.badge { display: inline-block; font-size: 0.8125rem; font-weight: 600; padding: 0.15rem 0.5rem; border-radius: 999px; border: 1px solid var(--hairline); color: var(--ink-muted); margin-bottom: 0.35rem; }
.badge.current { color: var(--on-layout-blue); background: var(--layout-blue); border-color: var(--layout-blue); }
.badge.done { color: var(--good); border-color: var(--good); }
@media (max-width: 36rem) { .camps li { grid-template-columns: 1fr; } }

.note { background: var(--surface); border: 1px solid var(--hairline); border-left-color: var(--brand-amber); border-radius: var(--radius-md); padding: 0.9rem 1.1rem; max-width: var(--measure); }

/* FAQ */
.faq-list { max-width: var(--measure); }
.faq-list h2 { font-size: 1.15rem; margin-top: 1.75rem; font-variation-settings: "wdth" 100; line-height: 1.4; }

/* About */
.facts { max-width: var(--measure); }
.facts dt { color: var(--ink-muted); font-weight: 500; }
@media (max-width: 36rem) { dl { grid-template-columns: 1fr; gap: 0.1rem 0; } dd { margin-bottom: 0.75rem; } }

/* Press */
.logo-list { list-style: none; padding: 0; margin: 0 0 1.5rem; display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr)); }
.logo-list li { margin: 0; max-width: none; background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 0.75rem; }
.logo-list .preview { display: flex; align-items: center; justify-content: center; height: 5rem; border-radius: var(--radius-sm); margin-bottom: 0.5rem; background: var(--paper-light); border: 1px solid var(--hairline); }
.logo-list .preview.dark { background: var(--brand-navy); }
.logo-list .preview img { max-height: 3.5rem; width: auto; }
.logo-box { background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 1rem 1.25rem; max-width: var(--measure); margin: 0 0 1.5rem; }
.logo-box p:last-child { margin-bottom: 0; }
.swatches { list-style: none; padding: 0; margin: 0 0 1.5rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.swatches li { margin: 0; display: flex; align-items: center; gap: 0.75rem; }
.swatches code { font-feature-settings: "tnum" 1, "zero" 1, "case" 1; }
.swatch { width: 3rem; height: 3rem; border-radius: var(--radius-sm); border: 1px solid var(--hairline); flex: none; }

/* API */
.cmds { display: grid; gap: 0.75rem; margin-bottom: 1.5rem; }
.cmd { min-width: 0; background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 1rem 1.25rem; }
.cmd h3 { margin: 0 0 0.35rem; font-size: 1rem; font-weight: 600; }
.cmd h3 code { font-size: 0.95rem; background: none; border: 0; padding: 0; color: var(--layout-blue); font-variation-settings: "wdth" 100; }
.cmd p { margin: 0 0 0.5rem; max-width: none; }
.cmd .example-label { margin-bottom: 0.25rem; }
.cmd pre { margin: 0; padding: 0.6rem 0.8rem; background: var(--paper); }

/* Footer */
.site-footer { border-top: 1px solid var(--hairline); padding: 1.5rem 0 2rem; font-size: 0.875rem; color: var(--ink-muted); }
.site-footer .wrap { display: grid; gap: 1rem; grid-template-columns: 1fr auto; align-items: start; }
.site-footer p { margin: 0 0 0.35rem; max-width: none; }
.site-footer a { color: var(--ink-muted); }
.controls { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; justify-content: flex-end; }
.controls .theme-toggle { gap: 0.4rem; align-items: center; }
.controls .theme-toggle { display: none; }
html.js .controls .theme-toggle { display: inline-flex; }
select { cursor: pointer; font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-sm); padding: 0.3rem 0.5rem; }
@media (max-width: 40rem) { .site-footer .wrap { grid-template-columns: 1fr; } .controls { justify-content: flex-start; } }

.notfound { text-align: left; }

.root { padding: 2rem 0; }

/* The foreword on the home page: reading typography, no card, no quotation ornament. */
.foreword { margin: 2.5rem 0; max-width: var(--measure); }
.foreword p { font-size: 1.0625rem; line-height: 1.6; margin: 0 0 0.75rem; }
.foreword .signature { font-weight: 600; font-variation-settings: "wdth" 100; margin: 0; }