/* Auld — product site styles. Original design, system fonts only. */

:root {
  --ivory: #F5F2E9;
  --paper: #FBF9F3;
  --white: #FFFEFA;
  --sand: #EEE9DC;
  --sand-2: #E6DFCE;
  --forest: #193C34;
  --forest-2: #224A40;
  --forest-deep: #10291F;
  --ink: #18312B;
  --olive: #768176;
  --olive-ink: #5B665C;
  --copper: #A86546;
  --copper-ink: #8A4F33;
  --copper-light: #D9A07F;
  --mist: #C9D0C4;
  --error: #A12B1C;
  --ok: #2F6B4F;
  --rule: rgba(24, 49, 43, 0.14);
  --rule-strong: rgba(24, 49, 43, 0.3);
  --field: #6B766C;
  --code-bg: #13261F;
  --code-fg: #E9EFE6;

  --serif: Georgia, "Iowan Old Style", "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --gutter: 20px;
  --header-h: 64px;
  --radius: 6px;
  --shadow: 0 1px 0 rgba(255,255,255,.7) inset, 0 18px 40px -28px rgba(24, 49, 43, 0.45);
}
@media (min-width: 640px) { :root { --gutter: 32px; } }
@media (min-width: 900px) { :root { --gutter: clamp(40px, 4.5vw, 64px); --header-h: 68px; } }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0;
  background: var(--ivory);
  color: var(--ink);
  font: 400 16.5px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
svg { display: block; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
h1, h2, h3, h4 { margin: 0; font-weight: 400; }
ul, ol { margin: 0; padding: 0; }
strong { font-weight: 650; }
code, kbd { font-family: var(--mono); font-size: 0.9em; }
:not(pre) > code { padding: 0.1em 0.35em; background: var(--sand); border: 1px solid var(--rule); border-radius: 4px; overflow-wrap: anywhere; }
a { color: var(--forest); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--copper-ink); }
:focus-visible { outline: 2px solid var(--copper-ink); outline-offset: 2px; border-radius: 3px; }
#main:focus { outline: none; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { width: min(1200px, 100% - 2 * var(--gutter)); margin-inline: auto; }

.skip-link { position: absolute; left: 12px; top: -80px; z-index: 200; padding: 10px 16px; background: var(--forest); color: var(--ivory); font-weight: 600; }
.skip-link:focus { top: 10px; color: var(--ivory); }

/* ——— Type ——— */
h1, .h1 { font-family: var(--serif); font-size: clamp(38px, 5.4vw, 72px); line-height: 1.03; letter-spacing: -0.02em; text-wrap: balance; }
h2, .h2 { font-family: var(--serif); font-size: clamp(28px, 3.4vw, 44px); line-height: 1.1; letter-spacing: -0.012em; text-wrap: balance; }
h3, .h3 { font-family: var(--serif); font-size: clamp(20px, 1.8vw, 24px); line-height: 1.25; }
.lede { font-size: clamp(17px, 1.4vw, 19.5px); line-height: 1.55; max-width: 40em; }
.eyebrow, .mono-label, .example-label {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--olive-ink);
}
.eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--copper); }
.example-label { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 10px; }
.example-label::before { content: ""; width: 7px; height: 7px; border: 1px solid var(--copper); transform: rotate(45deg); }

/* ——— Buttons ——— */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 18px; border: 1px solid var(--forest); border-radius: var(--radius);
  background: var(--forest); color: var(--ivory); font: 600 15.5px/1.2 var(--sans); text-decoration: none; cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn-quiet { background: transparent; color: var(--forest); border-color: var(--rule-strong); }
.btn-quiet:hover { background: rgba(25,60,52,.06); color: var(--forest); border-color: var(--forest); }
.btn-copper { background: var(--copper-light); border-color: var(--copper-light); color: var(--forest-deep); }
.btn-copper:hover { background: #E6B597; border-color: #E6B597; color: var(--forest-deep); }
.btn-light { background: transparent; border-color: rgba(245,242,233,.5); color: var(--ivory); }
.btn-light:hover { background: rgba(245,242,233,.1); color: #fff; border-color: var(--ivory); }
.btn-small { min-height: 38px; padding: 7px 14px; font-size: 14.5px; }
.btn[aria-disabled="true"] { opacity: .5; pointer-events: none; }

/* ——— Header ——— */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(245,242,233,.94); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-bottom: 1px solid var(--rule); }
.header-inner { display: flex; align-items: center; gap: 28px; min-height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--forest); text-decoration: none; flex: none; }
.brand:hover { color: var(--forest); }
.brand-word { font-family: var(--serif); font-size: 25px; line-height: 1; color: var(--ink); letter-spacing: -0.01em; }
.site-nav { display: flex; align-items: center; justify-content: space-between; flex: 1; gap: 20px; }
.nav-menu { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav-item { position: relative; }
.nav-link, .nav-trigger {
  display: inline-flex; align-items: center; gap: 6px; min-height: 40px; padding: 8px 12px; border: 0; border-radius: var(--radius);
  background: transparent; color: var(--ink); font: 500 15px/1 var(--sans); text-decoration: none; cursor: pointer;
}
.nav-link:hover, .nav-trigger:hover, .nav-trigger[aria-expanded="true"] { background: var(--sand); color: var(--ink); }
.nav-link[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--copper); border-radius: 0; }
.nav-trigger .chev { transition: transform .15s ease; }
.nav-trigger[aria-expanded="true"] .chev { transform: rotate(180deg); }
.nav-panel {
  position: absolute; top: calc(100% + 8px); left: -8px; z-index: 110; width: max-content; max-width: min(640px, 92vw);
  background: var(--white); border: 1px solid var(--rule-strong); border-radius: 10px; box-shadow: 0 24px 50px -24px rgba(24,49,43,.4);
}
.nav-panel-inner { display: grid; grid-template-columns: repeat(2, minmax(220px, 1fr)); gap: 8px 16px; padding: 18px; }
.nav-group-title { margin: 0 0 6px 10px; font: 600 11.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--copper-ink); }
.nav-group ul { list-style: none; }
.nav-group a { display: block; padding: 8px 10px; border-radius: var(--radius); text-decoration: none; color: var(--ink); }
.nav-group a:hover, .nav-group a[aria-current="page"] { background: var(--sand); }
.nl-t { display: block; font-weight: 600; font-size: 14.5px; }
.nl-d { display: block; font-size: 13px; color: var(--olive-ink); line-height: 1.35; }
.nav-actions { display: flex; align-items: center; gap: 6px; }
.nav-toggle { display: none; }

@media (max-width: 1023px) {
  .js .nav-toggle {
    display: inline-flex; align-items: center; gap: 10px; margin-left: auto; min-height: 44px; padding: 8px 10px; border: 1px solid var(--rule-strong);
    border-radius: var(--radius); background: transparent; color: var(--ink); font: 600 14.5px/1 var(--sans); cursor: pointer;
  }
  .nav-toggle-lines, .nav-toggle-lines::before { display: block; width: 18px; height: 1.5px; background: currentColor; transition: transform .15s ease; }
  .nav-toggle-lines { position: relative; transform: translateY(-3px); }
  .nav-toggle-lines::before { content: ""; position: absolute; top: 6px; }
  .nav-toggle[aria-expanded="true"] .nav-toggle-lines { transform: rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .nav-toggle-lines::before { transform: translateY(-6px) rotate(-90deg); }
  .js .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 16px;
    max-height: calc(100vh - var(--header-h)); overflow-y: auto; padding: 8px var(--gutter) 24px; background: var(--ivory); border-bottom: 1px solid var(--rule-strong);
    box-shadow: 0 24px 40px -24px rgba(24,49,43,.35);
  }
  .js .site-nav.is-open { display: flex; }
  .nav-menu { flex-direction: column; align-items: stretch; }
  .nav-link, .nav-trigger { width: 100%; justify-content: space-between; min-height: 48px; padding: 12px 4px; border-bottom: 1px solid var(--rule); border-radius: 0; font-size: 17px; }
  .nav-link[aria-current="page"] { box-shadow: none; color: var(--copper-ink); }
  .nav-panel { position: static; width: auto; max-width: none; border: 0; box-shadow: none; background: transparent; }
  .nav-panel-inner { grid-template-columns: 1fr; padding: 8px 0 12px; }
  .nav-actions { gap: 12px; }
  .nav-actions .nav-link { width: auto; border: 0; }
  html:not(.js) .header-inner { flex-wrap: wrap; padding-block: 10px; }
  html:not(.js) .site-nav { flex-wrap: wrap; }
}

/* ——— Generic page hero ——— */
.page-hero { padding: clamp(48px, 7vw, 96px) 0 clamp(40px, 5vw, 72px); border-bottom: 1px solid var(--rule); background: linear-gradient(180deg, var(--paper), var(--ivory)); }
.page-hero h1 { max-width: 15ch; margin-bottom: 20px; }
.page-hero .lede { margin-bottom: 28px; }
.page-hero-split { display: grid; grid-template-columns: minmax(0, 1fr); gap: 40px; align-items: center; }
@media (min-width: 900px) { .page-hero-split { grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 56px; } }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.page-hero.compact h1 { font-size: clamp(34px, 4.4vw, 56px); max-width: 20ch; }

/* ——— Sections ——— */
.section { padding: clamp(56px, 7vw, 104px) 0; }
.section-tight { padding: clamp(40px, 5vw, 72px) 0; }
.section-head { display: grid; gap: 14px; margin-bottom: clamp(28px, 4vw, 48px); max-width: 760px; }
.section-head p { color: var(--ink); font-size: 17.5px; }
.section-alt { background: var(--paper); border-block: 1px solid var(--rule); }
.section-forest { background: var(--forest); color: var(--ivory); }
.section-forest a { color: var(--copper-light); }
.section-forest .eyebrow { color: var(--mist); }
.section-forest .eyebrow::before { background: var(--copper-light); }
.section-forest .section-head p { color: var(--mist); }
.section-forest :focus-visible { outline-color: var(--copper-light); }
.grid-2 { display: grid; gap: 28px; grid-template-columns: minmax(0, 1fr); }
.grid-3 { display: grid; gap: 20px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px; } .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

/* ——— Cards ——— */
.card-grid { display: grid; gap: 14px; list-style: none; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) { .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1000px) { .card-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .card-grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.card { position: relative; display: flex; flex-direction: column; gap: 6px; height: 100%; padding: 18px 20px; background: var(--white); border: 1px solid var(--rule-strong); border-radius: 10px; color: var(--ink); text-decoration: none; }
.card-link { transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease; padding-right: 40px; }
.card-link:hover { border-color: var(--forest); color: var(--ink); box-shadow: var(--shadow); }
.card-kicker { font: 600 11.5px/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--copper-ink); }
.card-title { font-family: var(--serif); font-size: 20px; line-height: 1.25; }
.card-text { font-size: 14.5px; color: var(--olive-ink); }
.card-arrow { position: absolute; right: 16px; top: 18px; color: var(--copper); }
.section-forest .card { background: var(--forest-2); border-color: rgba(245,242,233,.18); color: var(--ivory); }
.section-forest .card-text { color: var(--mist); }
.section-forest .card-kicker { color: var(--copper-light); }

/* ——— Lists ——— */
.ticks { list-style: none; display: grid; gap: 8px; }
.ticks li { position: relative; padding-left: 26px; }
.ticks li::before { content: ""; position: absolute; left: 2px; top: .5em; width: 12px; height: 7px; border-left: 2px solid var(--copper); border-bottom: 2px solid var(--copper); transform: rotate(-45deg); }
.plain-list { list-style: disc; padding-left: 1.2em; display: grid; gap: 6px; }
.step-list { list-style: none; display: grid; gap: 0; counter-reset: s; }
.step-list li { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 14px; padding: 16px 0; border-top: 1px solid var(--rule); }
.step-list li:last-child { border-bottom: 1px solid var(--rule); }
.step-n { font: italic 22px/1.2 var(--serif); color: var(--copper); }
.step-t { margin: 0 0 4px; font-weight: 650; }
.kv { display: grid; gap: 0; margin: 0; border-top: 1px solid var(--rule-strong); }
.kv > div { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2px 20px; padding: 12px 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 640px) { .kv > div { grid-template-columns: 200px minmax(0, 1fr); } }
.kv dt { font: 600 12px/1.5 var(--mono); letter-spacing: .05em; text-transform: uppercase; color: var(--olive-ink); padding-top: 2px; }
.kv dd { margin: 0; }

/* ——— Callouts ——— */
.callout { margin: 20px 0; padding: 14px 18px; border: 1px solid var(--rule-strong); border-left: 3px solid var(--copper); border-radius: var(--radius); background: var(--paper); font-size: 15.5px; }
.callout-title { margin-bottom: 4px; font-weight: 650; }
.callout-warn { border-left-color: var(--error); }
.callout-ok { border-left-color: var(--ok); }

/* ——— Code ——— */
.code { margin: 18px 0; border-radius: 10px; overflow: hidden; background: var(--code-bg); border: 1px solid #0B1A15; }
.code-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 6px 8px 6px 14px; background: #1B3329; border-bottom: 1px solid rgba(255,255,255,.06); }
.code-lang { font: 600 11.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--copper-light); }
.copy-btn { min-height: 30px; padding: 4px 10px; border: 1px solid rgba(233,239,230,.25); border-radius: 5px; background: transparent; color: var(--code-fg); font: 500 12.5px/1 var(--sans); cursor: pointer; }
.copy-btn:hover { background: rgba(233,239,230,.1); }
.copy-btn:focus-visible { outline-color: var(--copper-light); }
.code pre { margin: 0; padding: 14px 16px; overflow-x: auto; color: var(--code-fg); font: 13.5px/1.6 var(--mono); tab-size: 2; }
.code pre:focus-visible { outline-offset: -3px; outline-color: var(--copper-light); }
.code code { background: none; border: 0; padding: 0; font-size: inherit; }

/* ——— Tables ——— */
.table-wrap { margin: 18px 0; overflow-x: auto; border: 1px solid var(--rule-strong); border-radius: 10px; background: var(--white); }
.table-wrap:focus-visible { outline-offset: 2px; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
caption { padding: 12px 16px; text-align: left; font-weight: 600; }
th, td { padding: 11px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--rule); }
thead th { background: var(--sand); font: 600 12px/1.4 var(--mono); letter-spacing: .05em; text-transform: uppercase; color: var(--ink); white-space: nowrap; }
tbody th { font-weight: 600; }
tbody tr:last-child > * { border-bottom: 0; }
.tr-group th { background: var(--paper); font: 600 12px/1.4 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--copper-ink); }
td code { white-space: nowrap; }
.num { font-variant-numeric: tabular-nums; text-align: right; }

/* ——— FAQ ——— */
.faq-list { border-top: 1px solid var(--rule-strong); }
.faq-list details { border-bottom: 1px solid var(--rule-strong); }
.faq-list summary { position: relative; display: block; padding: 18px 44px 18px 0; font: 19px/1.35 var(--serif); cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::before, .faq-list summary::after { content: ""; position: absolute; right: 8px; top: 50%; width: 14px; height: 1.5px; background: var(--copper); transition: transform .2s ease; }
.faq-list summary::after { transform: rotate(90deg); }
.faq-list details[open] summary::after { transform: rotate(0); }
.faq-answer { padding: 0 44px 20px 0; max-width: 46em; }

/* ——— Article family ——— */
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 32px; padding: clamp(36px, 5vw, 64px) 0 clamp(56px, 7vw, 96px); }
@media (min-width: 1000px) { .article-grid { grid-template-columns: 220px minmax(0, 1fr); gap: 64px; } }
.article-aside { display: none; }
@media (min-width: 1000px) { .article-aside { display: block; } .article-aside .toc { position: sticky; top: calc(var(--header-h) + 24px); } }
.article-body { max-width: 820px; min-width: 0; }
.prose-section { padding: 28px 0; border-top: 1px solid var(--rule); }
.prose-section:first-child { border-top: 0; padding-top: 0; }
.prose-section h2 { font-size: clamp(26px, 2.6vw, 34px); margin-bottom: 16px; }
.prose-section h3 { margin: 22px 0 8px; }
.prose-section > p, .doc-section > p { max-width: 44em; }
.toc-title { margin-bottom: 10px; font: 600 11.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--olive-ink); }
.toc ul { list-style: none; border-left: 1px solid var(--rule-strong); }
.toc a { display: block; padding: 5px 0 5px 14px; margin-left: -1px; border-left: 2px solid transparent; font-size: 14px; line-height: 1.35; color: var(--ink); text-decoration: none; }
.toc a:hover, .toc a.is-current { border-left-color: var(--copper); color: var(--forest); }
.related { margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--ink); }
.related h2 { margin-bottom: 14px; }
.related-list { list-style: none; display: grid; gap: 8px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) { .related-list { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.related-list a { display: block; height: 100%; padding: 12px 14px; border: 1px solid var(--rule-strong); border-radius: 8px; background: var(--white); text-decoration: none; color: var(--ink); }
.related-list a:hover { border-color: var(--forest); }
.related-list span { display: block; font-weight: 600; }
.related-list .rl-d { font-weight: 400; font-size: 14px; color: var(--olive-ink); }

/* ——— CTA band ——— */
.cta-band { background: var(--forest); color: var(--ivory); padding: clamp(44px, 6vw, 80px) 0; }
.cta-inner { display: grid; gap: 24px; align-items: center; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) { .cta-inner { grid-template-columns: minmax(0, 1.4fr) auto; } }
.cta-band h2 { margin-bottom: 10px; }
.cta-band p { color: var(--mist); max-width: 36em; }
.cta-band :focus-visible { outline-color: var(--copper-light); }

/* ——— Diagrams and product UI ——— */
.panel { background: var(--white); border: 1px solid var(--rule-strong); border-radius: 12px; box-shadow: var(--shadow); overflow: hidden; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--rule); background: var(--sand); font: 600 11.5px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--olive-ink); }
.panel-body { padding: 16px; }
.dots { display: inline-flex; gap: 5px; }
.dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--sand-2); border: 1px solid var(--rule-strong); }
.diagram-svg { width: 100%; height: auto; }
.svg-label { font: 600 12px var(--mono); letter-spacing: .04em; fill: var(--ink); }
.svg-sub { font: 12px var(--sans); fill: var(--olive-ink); }
.memory-row { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 12px; padding: 10px 0; border-bottom: 1px dashed var(--rule-strong); font-size: 14.5px; }
.memory-row:last-child { border-bottom: 0; }
.tag { display: inline-flex; align-items: center; height: 22px; padding: 0 8px; border-radius: 999px; font: 600 11px/1 var(--mono); letter-spacing: .04em; text-transform: uppercase; border: 1px solid var(--rule-strong); color: var(--olive-ink); background: var(--paper); white-space: nowrap; }
.tag-current { background: #E4EFE6; border-color: #9DBFA6; color: #1F4D36; }
.tag-old { background: #F3E6DE; border-color: #D9B6A1; color: var(--copper-ink); }
.src { font: 12px/1.4 var(--mono); color: var(--olive-ink); }
.struck { text-decoration: line-through; text-decoration-color: var(--copper); color: var(--olive-ink); }

/* ——— Home ——— */
.home-hero { padding: clamp(48px, 7vw, 100px) 0 clamp(48px, 6vw, 88px); background:
  radial-gradient(900px 500px at 90% -10%, rgba(168,101,70,.10), transparent 60%),
  radial-gradient(800px 600px at -10% 20%, rgba(25,60,52,.07), transparent 60%), var(--ivory); border-bottom: 1px solid var(--rule); }
.home-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 44px; align-items: center; }
@media (min-width: 1000px) { .home-hero-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; } }
.home-hero h1 { font-size: clamp(42px, 6vw, 84px); max-width: 11ch; margin-bottom: 22px; }
.home-hero .lede { margin-bottom: 30px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--rule-strong); font-size: 14px; color: var(--olive-ink); list-style: none; }
.hero-meta li::before { content: "◆"; margin-right: 8px; color: var(--copper); font-size: 9px; vertical-align: 2px; }
.flow-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--rule); background: var(--paper); overflow-x: auto; }
.flow-tab { flex: 1 0 auto; min-height: 44px; padding: 10px 14px; border: 0; border-right: 1px solid var(--rule); background: transparent; font: 600 13px/1 var(--mono); letter-spacing: .03em; color: var(--olive-ink); cursor: pointer; }
.flow-tab[aria-selected="true"] { background: var(--white); color: var(--ink); box-shadow: inset 0 2px 0 var(--copper); }
.flow-tab:focus-visible { outline-offset: -3px; }
.hero-panel .code { margin: 0; border-radius: 0; border: 0; }
.hero-panel .code pre { max-height: 340px; }
.tabpanel[hidden] { display: none; }
.logo-strip { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; }
.logo-strip a { display: inline-flex; align-items: center; min-height: 36px; padding: 6px 12px; border: 1px solid var(--rule-strong); border-radius: 999px; background: var(--white); color: var(--ink); text-decoration: none; font-size: 14px; font-weight: 550; }
.logo-strip a:hover { border-color: var(--forest); }
.concept-grid { display: grid; gap: 1px; background: var(--rule-strong); border: 1px solid var(--rule-strong); border-radius: 12px; overflow: hidden; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .concept-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .concept-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.concept { padding: 22px; background: var(--white); }
.concept h3 { margin: 10px 0 8px; }
.concept p { font-size: 15px; color: var(--ink); }
.concept .mono-label { color: var(--copper-ink); }
.split { display: grid; gap: 32px; grid-template-columns: minmax(0, 1fr); align-items: start; }
@media (min-width: 960px) { .split { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 56px; } .split.flip { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); } }
.deploy-grid { display: grid; gap: 14px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) { .deploy-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.deploy { padding: 22px; border: 1px solid rgba(245,242,233,.22); border-radius: 12px; background: var(--forest-2); }
.deploy h3 { margin: 8px 0; }
.deploy p { color: var(--mist); font-size: 15px; }
.deploy .ticks li::before { border-color: var(--copper-light); }
.deploy .ticks { color: var(--ivory); font-size: 14.5px; margin-top: 12px; }

/* ——— Plans ——— */
.plans { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) { .plans { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.plan { display: flex; flex-direction: column; padding: 24px; background: var(--white); border: 1px solid var(--rule-strong); border-radius: 14px; }
.plan.featured { border: 2px solid var(--forest); box-shadow: var(--shadow); }
.plan-name { display: flex; align-items: center; justify-content: space-between; gap: 8px; font: 22px/1.2 var(--serif); }
.plan-price { margin: 12px 0 4px; font: 44px/1 var(--serif); letter-spacing: -0.02em; }
.plan-price small { font: 15px var(--sans); color: var(--olive-ink); letter-spacing: 0; }
.plan-note { font-size: 14px; color: var(--olive-ink); min-height: 2.6em; }
.plan-for { margin: 14px 0; padding: 12px 0; border-block: 1px solid var(--rule); font-size: 15px; }
.plan .ticks { font-size: 14.5px; margin-bottom: 22px; flex: 1; }
.plan .btn { width: 100%; }
.badge { display: inline-flex; padding: 3px 9px; border-radius: 999px; background: var(--forest); color: var(--ivory); font: 600 11px/1.3 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.review-note { margin-top: 18px; font-size: 14px; color: var(--olive-ink); }

/* ——— Calculator ——— */
.calc { display: grid; gap: 0; grid-template-columns: minmax(0, 1fr); background: var(--white); border: 1px solid var(--rule-strong); border-radius: 14px; overflow: hidden; }
@media (min-width: 1000px) { .calc { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); } }
.calc-inputs { padding: clamp(18px, 3vw, 28px); }
.calc-outputs { padding: clamp(18px, 3vw, 28px); background: var(--forest); color: var(--ivory); }
.calc-outputs :focus-visible { outline-color: var(--copper-light); }
.preset-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 12px; }
.preset { min-height: 36px; padding: 6px 12px; border: 1px solid var(--rule-strong); border-radius: 999px; background: var(--paper); color: var(--ink); font: 550 13.5px/1 var(--sans); cursor: pointer; }
.preset[aria-pressed="true"] { background: var(--forest); border-color: var(--forest); color: var(--ivory); }
.calc textarea { font-family: var(--mono); font-size: 13px; min-height: 150px; }
.payload-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 8px 0 18px; font: 13px/1.4 var(--mono); color: var(--olive-ink); }
.payload-meta strong { color: var(--ink); }
.calc-grid { display: grid; gap: 14px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) { .calc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.chips { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 6px; }
.chip { min-height: 30px; padding: 3px 9px; border: 1px solid var(--rule-strong); border-radius: 5px; background: transparent; color: var(--ink); font: 12.5px/1 var(--mono); cursor: pointer; }
.chip:hover { border-color: var(--forest); }
.out-plans { display: grid; gap: 10px; margin: 14px 0 18px; }
.out-plan { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 12px; padding: 12px 14px; border: 1px solid rgba(245,242,233,.2); border-radius: 10px; }
.out-plan.is-rec { border-color: var(--copper-light); background: rgba(217,160,127,.1); }
.out-plan .op-name { font-weight: 650; }
.out-plan .op-cost { font: 26px/1.1 var(--serif); text-align: right; }
.out-plan .op-detail { grid-column: 1 / -1; font-size: 13.5px; color: var(--mist); }
.out-plan .badge { background: var(--copper-light); color: var(--forest-deep); margin-left: 6px; vertical-align: 2px; }
.out-tokens { padding-top: 16px; border-top: 1px solid rgba(245,242,233,.2); font-size: 14.5px; color: var(--mist); }
.out-tokens strong { color: var(--ivory); }
.out-tokens .field label { color: var(--ivory); }
.calc-outputs .field input { background: var(--forest-deep); color: var(--ivory); border-color: rgba(245,242,233,.4); }
.formula { margin-top: 18px; }
.formula summary { cursor: pointer; font-weight: 600; }

/* ——— Forms ——— */
.field-row { display: grid; gap: 0 16px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) { .field-row { grid-template-columns: repeat(2, minmax(0, 1fr)); } .field-row > .field:not(.field-half) { grid-column: 1 / -1; } }
.field { margin-bottom: 16px; min-width: 0; }
.field label { display: block; margin-bottom: 6px; font-size: 14.5px; font-weight: 600; }
.optional { font-weight: 400; color: var(--olive-ink); }
.field input, .field select, .field textarea {
  display: block; width: 100%; min-height: 44px; padding: 9px 12px; border: 1px solid var(--field); border-radius: var(--radius);
  background: var(--white); color: var(--ink); font: 16px/1.4 var(--sans);
}
.field textarea { resize: vertical; }
.field select { appearance: none; -webkit-appearance: none; padding-right: 36px; background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(-45deg, transparent 50%, var(--ink) 50%); background-position: calc(100% - 18px) 52%, calc(100% - 13px) 52%; background-size: 5px 5px; background-repeat: no-repeat; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--forest); box-shadow: 0 0 0 3px rgba(168,101,70,.35); }
.field [aria-invalid="true"] { border: 2px solid var(--error); padding: 8px 11px; }
.field-error { margin: 6px 0 0; font-size: 14px; font-weight: 600; color: var(--error); }
.field-hint { margin: 6px 0 0; font-size: 13.5px; color: var(--olive-ink); }
.form-notice { margin: 4px 0 16px; padding: 12px 14px; border-left: 2px solid var(--copper); background: var(--sand); font-size: 14.5px; }
.form-card { padding: clamp(20px, 3.5vw, 36px); background: var(--white); border: 1px solid var(--rule-strong); border-radius: 14px; box-shadow: var(--shadow); }
.draft { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--ink); }
.draft-title { margin-bottom: 8px; font: 22px/1.25 var(--serif); }
.draft-title:focus { outline: none; }
.draft-preview { margin: 14px 0; padding: 14px; max-height: 300px; overflow: auto; background: var(--paper); border: 1px solid var(--rule-strong); border-radius: var(--radius); font: 13px/1.6 var(--mono); white-space: pre-wrap; overflow-wrap: anywhere; }
.draft-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.draft-status { margin-top: 10px; min-height: 1.4em; font-size: 14px; color: var(--olive-ink); }
.auth-shell { display: grid; place-items: center; padding: clamp(40px, 7vw, 96px) 0; }
.auth-card { width: min(460px, 100%); }
.auth-card h1 { font-size: clamp(32px, 4vw, 44px); margin-bottom: 10px; }
.feedback { margin-top: 16px; padding: 14px 16px; border: 1px solid var(--rule-strong); border-left: 3px solid var(--forest); border-radius: var(--radius); background: var(--paper); font-size: 15px; }
.feedback:focus { outline: none; }

/* ——— Docs ——— */
.docs-shell { display: grid; grid-template-columns: minmax(0, 1fr); gap: 24px; padding: 24px 0 72px; }
@media (min-width: 900px) { .docs-shell { grid-template-columns: 240px minmax(0, 1fr); gap: 40px; } }
@media (min-width: 1240px) { .docs-shell { grid-template-columns: 240px minmax(0, 1fr) 200px; } }
.docs-side { min-width: 0; }
@media (min-width: 900px) { .docs-side { position: sticky; top: calc(var(--header-h) + 16px); align-self: start; max-height: calc(100vh - var(--header-h) - 32px); overflow-y: auto; padding-right: 6px; } }
.docs-search { position: relative; margin-bottom: 16px; }
.docs-search-label { display: block; margin-bottom: 6px; font: 600 11.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--olive-ink); }
.docs-search-input { width: 100%; min-height: 42px; padding: 8px 12px; border: 1px solid var(--field); border-radius: var(--radius); background: var(--white); font: 15px var(--sans); color: var(--ink); }
.docs-search-input:focus { outline: none; border-color: var(--forest); box-shadow: 0 0 0 3px rgba(168,101,70,.35); }
.docs-results { margin-top: 8px; padding: 6px; background: var(--white); border: 1px solid var(--rule-strong); border-radius: var(--radius); box-shadow: var(--shadow); max-height: 360px; overflow-y: auto; }
.docs-results ul { list-style: none; }
.docs-results a { display: block; padding: 8px; border-radius: 5px; text-decoration: none; color: var(--ink); }
.docs-results a:hover, .docs-results a:focus { background: var(--sand); }
.docs-results .r-t { display: block; font-weight: 600; font-size: 14px; }
.docs-results .r-s { display: block; font-size: 12.5px; color: var(--olive-ink); }
.docs-results .r-none { padding: 8px; font-size: 14px; color: var(--olive-ink); }
.docs-nav-toggle { display: none; }
@media (max-width: 899px) {
  .js .docs-nav-toggle { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 44px; padding: 8px 12px; border: 1px solid var(--rule-strong); border-radius: var(--radius); background: var(--white); font: 600 15px var(--sans); color: var(--ink); cursor: pointer; }
  .js .docs-nav { display: none; margin-top: 10px; }
  .js .docs-nav.is-open { display: block; }
}
.docs-group { margin-bottom: 18px; }
.docs-group-title { margin: 0 0 6px; font: 600 11.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--copper-ink); }
.docs-group ul { list-style: none; border-left: 1px solid var(--rule-strong); }
.docs-group a { display: block; padding: 5px 0 5px 12px; margin-left: -1px; border-left: 2px solid transparent; font-size: 14.5px; color: var(--ink); text-decoration: none; }
.docs-group a:hover { color: var(--forest); border-left-color: var(--rule-strong); }
.docs-group a[aria-current="page"] { border-left-color: var(--copper); color: var(--forest); font-weight: 650; }
.docs-main { min-width: 0; max-width: 820px; }
.docs-crumb { font: 12.5px/1 var(--mono); color: var(--olive-ink); margin-bottom: 14px; }
.docs-crumb a { color: var(--olive-ink); }
.docs-main h1 { font-size: clamp(32px, 3.8vw, 46px); margin-bottom: 14px; }
.doc-section { padding-top: 26px; }
.doc-section h2 { position: relative; font-size: clamp(23px, 2.2vw, 28px); margin-bottom: 12px; }
.doc-section h3 { margin: 18px 0 8px; font-size: 19px; }
.anchor { position: absolute; left: -22px; top: 0; opacity: 0; color: var(--copper); text-decoration: none; font-family: var(--sans); font-size: .8em; }
.doc-section h2:hover .anchor, .anchor:focus { opacity: 1; }
.docs-toc { display: none; }
@media (min-width: 1240px) { .docs-toc { display: block; } .docs-toc .toc { position: sticky; top: calc(var(--header-h) + 24px); } }
.pager { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--rule-strong); }
.pager a { display: block; padding: 12px 14px; border: 1px solid var(--rule-strong); border-radius: 8px; text-decoration: none; color: var(--ink); font-weight: 600; }
.pager a:hover { border-color: var(--forest); }
.pager span { display: block; font: 11.5px/1.4 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--olive-ink); font-weight: 400; }
.pager-next { text-align: right; grid-column: 2; }
.endpoint { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 22px 0 8px; font: 14px var(--mono); }
.method { display: inline-flex; padding: 3px 8px; border-radius: 4px; font: 700 11.5px/1.3 var(--mono); letter-spacing: .04em; color: #fff; background: var(--forest); }
.method.post { background: #2F6B4F; } .method.get { background: #2D5873; } .method.put { background: #7A5A1F; } .method.delete { background: #8C2F23; } .method.patch { background: #5B4A7A; }

/* ——— Status ——— */
.status-banner { display: flex; gap: 14px; align-items: flex-start; padding: 18px 20px; border: 1px solid var(--rule-strong); border-left: 4px solid var(--olive); border-radius: 10px; background: var(--white); }
.status-dot { flex: none; width: 12px; height: 12px; margin-top: 6px; border-radius: 50%; background: var(--olive); }
.st-unknown { color: var(--olive-ink); font-weight: 600; }

/* ——— Brand ——— */
.swatches { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); list-style: none; }
.swatch { border: 1px solid var(--rule-strong); border-radius: 10px; overflow: hidden; background: var(--white); }
.swatch i { display: block; height: 72px; }
.swatch p { margin: 0; padding: 10px 12px; font-size: 13.5px; }
.swatch code { background: none; border: 0; padding: 0; }
.brand-tiles { display: grid; gap: 14px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .brand-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.brand-tile { display: grid; place-items: center; min-height: 160px; border: 1px solid var(--rule-strong); border-radius: 12px; background: var(--white); }
.brand-tile.dark { background: var(--forest); color: var(--ivory); }
.brand-tile.dark .brand-word { color: var(--ivory); }

/* ——— 404 ——— */
.nf { padding: clamp(64px, 10vw, 140px) 0; }
.nf-code { font: italic clamp(80px, 12vw, 150px)/0.9 var(--serif); color: var(--copper); margin-bottom: 18px; }

/* ——— Footer ——— */
.site-footer { padding: 56px 0 28px; background: var(--paper); border-top: 1px solid var(--rule-strong); font-size: 14.5px; }
.footer-top { display: grid; gap: 36px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 1000px) { .footer-top { grid-template-columns: 260px minmax(0, 1fr); gap: 56px; } }
.footer-brand p { margin: 12px 0 0; color: var(--olive-ink); max-width: 26em; }
.footer-cols { display: grid; gap: 24px 20px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 760px) { .footer-cols { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .footer-cols { grid-template-columns: repeat(6, minmax(0, 1fr)); } }
.footer-title { margin-bottom: 10px; font: 600 11.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--copper-ink); }
.footer-col ul { list-style: none; display: grid; gap: 6px; }
.footer-col a { color: var(--ink); text-decoration: none; }
.footer-col a:hover { text-decoration: underline; }
.footer-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--rule); font: 12.5px/1.5 var(--mono); color: var(--olive-ink); }
.footer-base a { color: var(--olive-ink); }

/* ——— Motion ——— */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}