/* Cadxor design system — website
   Tokens → base → layout → components → page sections. No framework; ~30 KB unminified.
   See docs/BRAND_GUIDELINES.md for the rationale behind each token. */

@font-face { font-family: "Inter"; src: url("../fonts/inter-400.woff") format("woff"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../fonts/inter-500.woff") format("woff"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../fonts/inter-600.woff") format("woff"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Inter Display"; src: url("../fonts/inter-display-600.woff") format("woff"); font-weight: 600; font-display: swap; }

:root {
  --ink-950: #0B1220; --ink-900: #111A2B; --ink-850: #152034; --ink-800: #1B2638; --ink-700: #2A3649;
  --slate-600: #4B5668; --slate-500: #667085; --slate-400: #98A2B3; --slate-300: #C9D0DA; --slate-200: #E3E7ED;
  --slate-100: #EEF1F5; --paper: #F7F8FA; --white: #FFFFFF;
  --accent-700: #B4451A; --accent-600: #D4531F; --accent-500: #E8622C; --accent-200: #F7C9B3; --accent-100: #FCEDE5;
  --blue-600: #2F5BC4; --blue-100: #E7EEFC;
  --green-600: #1D7F55; --green-100: #E3F4EC; --amber-600: #A86A12; --amber-100: #FBF0DC; --red-600: #B93A28; --red-100: #FBE7E3;

  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Inter Display", "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Consolas, "Liberation Mono", monospace;

  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 24px; --s-6: 32px; --s-7: 48px; --s-8: 64px; --s-9: 96px; --s-10: 128px;
  --r-sm: 6px; --r-md: 10px; --r-lg: 14px;
  --shadow-1: 0 1px 2px rgba(11,18,32,.06), 0 1px 1px rgba(11,18,32,.04);
  --shadow-2: 0 8px 24px rgba(11,18,32,.08), 0 2px 6px rgba(11,18,32,.05);
  --container: 1200px;
  --focus: 0 0 0 3px rgba(232,98,44,.45);
}

/* ------------------------------------------------------------------ base */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { margin: 0; font-family: var(--font-sans); font-size: 17px; line-height: 1.6; color: var(--ink-900); background: var(--white);
  font-feature-settings: "cv11", "ss01"; -webkit-font-smoothing: antialiased; }
img, svg, canvas { max-width: 100%; display: block; }
a { color: var(--blue-600); text-underline-offset: 3px; }
a:hover { color: var(--accent-600); }
:focus-visible { outline: none; box-shadow: var(--focus); border-radius: 4px; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 var(--s-4); color: inherit; }
h1 { font-size: clamp(2.3rem, 4.6vw, 3.9rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.75rem, 3vw, 2.6rem); }
h3 { font-size: 1.25rem; letter-spacing: -0.01em; }
h4 { font-size: 1.02rem; letter-spacing: 0; }
p { margin: 0 0 var(--s-4); }
.lede { font-size: 1.2rem; color: var(--slate-600); max-width: 64ch; }
.dark .lede { color: var(--slate-300); }
small, .small { font-size: .875rem; }
code, kbd, pre { font-family: var(--font-mono); font-size: .9em; }
.skip-link { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--accent-500); color: #fff; padding: 8px 14px; border-radius: 6px; }
.skip-link:focus { left: 8px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ------------------------------------------------------------------ layout */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--s-5); }
.narrow { max-width: 820px; }
.section { padding: var(--s-9) 0; }
.section-tight { padding: var(--s-8) 0; }
.section.alt { background: var(--paper); border-top: 1px solid var(--slate-200); border-bottom: 1px solid var(--slate-200); }
.dark { background: var(--ink-950); color: var(--slate-200); }
.dark h1, .dark h2, .dark h3 { color: var(--white); }
.blueprint { background-color: var(--ink-950);
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 24px 24px, 24px 24px, 120px 120px, 120px 120px; background-position: -1px -1px; }
.grid { display: grid; gap: var(--s-5); }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: var(--s-8); align-items: center; }
.split.reverse > :first-child { order: 2; }
/* Grid items may shrink below their content's width, so code blocks and tables scroll instead of widening the page. */
.split > *, .docs-layout > *, .grid > * { min-width: 0; }
@media (max-width: 980px) { .g3, .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .split { grid-template-columns: 1fr; gap: var(--s-6); } .split.reverse > :first-child { order: 0; } }
@media (max-width: 640px) { .g2, .g3, .g4 { grid-template-columns: 1fr; } .section { padding: var(--s-8) 0; } body { font-size: 16px; } }
.stack > * + * { margin-top: var(--s-4); }
dl.stack dd { margin: 4px 0 0; color: var(--slate-600); }
.center { text-align: center; }
.center .lede { margin-left: auto; margin-right: auto; }
.mt-6 { margin-top: var(--s-6); } .mt-7 { margin-top: var(--s-7); } .mb-0 { margin-bottom: 0; }
.section-head { max-width: 760px; margin-bottom: var(--s-7); }
.section-head.center { margin-left: auto; margin-right: auto; }

/* ------------------------------------------------------------------ eyebrow / labels */
.eyebrow { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent-600); margin-bottom: var(--s-3); display: inline-flex; gap: 10px; align-items: center; }
.dark .eyebrow { color: var(--accent-500); }
.eyebrow::before { content: ""; width: 18px; height: 1px; background: currentColor; }
.badge { display: inline-flex; align-items: center; gap: 6px; font-size: .74rem; font-weight: 600; letter-spacing: .02em; padding: 3px 9px; border-radius: 999px; border: 1px solid transparent; white-space: nowrap; }
.badge-sim { background: var(--amber-100); color: var(--amber-600); border-color: #F1D9A8; }
.badge-example { background: var(--blue-100); color: var(--blue-600); border-color: #C9D8F6; }
.badge-draft { background: var(--red-100); color: var(--red-600); border-color: #F2C3B9; }
.badge-ok { background: var(--green-100); color: var(--green-600); border-color: #BFE3D1; }
.badge-neutral { background: var(--slate-100); color: var(--slate-600); border-color: var(--slate-200); }
.badge-planned { background: var(--slate-100); color: var(--slate-500); border-color: var(--slate-200); }
.dark .badge-neutral { background: rgba(255,255,255,.06); color: var(--slate-300); border-color: rgba(255,255,255,.12); }

/* ------------------------------------------------------------------ buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: 600 .95rem/1 var(--font-sans); padding: 13px 20px; border-radius: var(--r-sm);
  border: 1px solid transparent; text-decoration: none; cursor: pointer; transition: background .15s, border-color .15s, color .15s, transform .15s; white-space: nowrap; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent-500); color: #fff; }
.btn-primary:hover { background: var(--accent-600); color: #fff; }
.btn-secondary { background: transparent; color: var(--ink-900); border-color: var(--slate-300); }
.btn-secondary:hover { border-color: var(--ink-900); color: var(--ink-900); }
.dark .btn-secondary { color: #fff; border-color: rgba(255,255,255,.28); }
.dark .btn-secondary:hover { border-color: #fff; color: #fff; }
.btn-ghost { background: transparent; color: var(--ink-900); padding-left: 0; padding-right: 0; }
.btn-ghost:hover { color: var(--accent-600); }
.btn-ghost::after { content: "→"; transition: transform .15s; }
.btn-ghost:hover::after { transform: translateX(3px); }
.dark .btn-ghost { color: #fff; }
.btn-sm { padding: 9px 14px; font-size: .875rem; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--s-3); align-items: center; }

/* ------------------------------------------------------------------ cards */
.card { background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--r-md); padding: var(--s-6); box-shadow: var(--shadow-1); }
.card h3 { margin-bottom: var(--s-2); }
.card p:last-child { margin-bottom: 0; }
.card-link { text-decoration: none; color: inherit; display: block; transition: border-color .15s, box-shadow .15s, transform .15s; }
.card-link:hover { border-color: var(--slate-400); box-shadow: var(--shadow-2); color: inherit; transform: translateY(-2px); }
.card .icon { width: 40px; height: 40px; border-radius: 8px; display: grid; place-items: center; background: var(--accent-100); color: var(--accent-600); margin-bottom: var(--s-4); }
.card .icon svg { width: 22px; height: 22px; }
.dark .card { background: var(--ink-900); border-color: var(--ink-700); box-shadow: none; }
.card-flat { box-shadow: none; background: var(--paper); }
.spec { display: grid; grid-template-columns: auto 1fr; gap: 6px 18px; font-size: .92rem; margin: 0; }
.spec dt { color: var(--slate-500); }
.spec dd { margin: 0; font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------------ nav */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(11,18,32,.92); backdrop-filter: saturate(140%) blur(10px); border-bottom: 1px solid rgba(255,255,255,.07); }
.site-header .container { display: flex; align-items: center; gap: var(--s-5); height: 68px; }
.brand { display: inline-flex; align-items: center; flex: none; }
.brand img { height: 30px; width: auto; }
.nav { display: flex; align-items: center; gap: 2px; flex: 1; }
.nav > ul { display: flex; list-style: none; margin: 0; padding: 0; gap: 2px; }
.nav a, .nav button.navtop { color: var(--slate-200); text-decoration: none; font: 500 .93rem/1 var(--font-sans); padding: 10px 12px; border-radius: 6px; background: none; border: 0; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; }
.nav a:hover, .nav button.navtop:hover, .nav button.navtop[aria-expanded="true"] { color: #fff; background: rgba(255,255,255,.06); }
.nav a[aria-current="page"] { color: #fff; }
.nav button.navtop::after { content: ""; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-2px); opacity: .7; }
.has-menu { position: relative; }
.menu { position: absolute; top: calc(100% + 8px); left: 0; min-width: 300px; background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--r-md); box-shadow: var(--shadow-2); padding: var(--s-2); display: none; }
.menu.wide { min-width: 560px; display: none; grid-template-columns: 1fr 1fr; }
.has-menu.open > .menu { display: block; }
.has-menu.open > .menu.wide { display: grid; }
.menu a { display: block; color: var(--ink-900); padding: 10px 12px; border-radius: 6px; line-height: 1.3; }
.menu a:hover { background: var(--paper); color: var(--ink-900); }
.menu a span { display: block; font-size: .8rem; color: var(--slate-500); font-weight: 400; margin-top: 3px; }
.nav-actions { display: flex; align-items: center; gap: var(--s-2); margin-left: auto; }
.nav-actions .signin { color: var(--slate-200); text-decoration: none; font-weight: 500; font-size: .93rem; padding: 10px 12px; }
.nav-actions .signin:hover { color: #fff; }
.site-header .btn-secondary { color: #fff; border-color: rgba(255,255,255,.28); }
.site-header .btn-secondary:hover { color: #fff; border-color: #fff; }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid rgba(255,255,255,.2); color: #fff; border-radius: 6px; padding: 8px 10px; cursor: pointer; }
@media (max-width: 1100px) {
  .nav-toggle { display: inline-flex; }
  .nav, .nav-actions { display: none; }
  .site-header.open .nav { display: block; position: absolute; top: 68px; left: 0; right: 0; background: var(--ink-950); padding: var(--s-4) var(--s-5) var(--s-5); border-bottom: 1px solid var(--ink-700); max-height: calc(100vh - 68px); overflow: auto; }
  .site-header.open .nav > ul { flex-direction: column; }
  .site-header.open .menu, .site-header.open .menu.wide { position: static; display: none; min-width: 0; grid-template-columns: 1fr; background: var(--ink-900); border-color: var(--ink-700); box-shadow: none; margin: 4px 0 8px; }
  .site-header.open .has-menu.open > .menu { display: block; }
  .site-header.open .menu a { color: var(--slate-200); }
  .site-header.open .menu a:hover { background: var(--ink-800); color: #fff; }
  .site-header.open .nav-actions { display: flex; position: absolute; top: calc(68px + var(--mobile-nav-h, 0px)); }
  .site-header.open .nav .mobile-actions { display: flex; }
}
.mobile-actions { display: none; flex-wrap: wrap; gap: 10px; margin-top: var(--s-4); padding-top: var(--s-4); border-top: 1px solid var(--ink-700); }

/* ------------------------------------------------------------------ hero */
.hero { padding: var(--s-9) 0 var(--s-8); position: relative; overflow: hidden; }
.hero h1 { max-width: 16ch; font-size: clamp(2.3rem, 4.1vw, 3.45rem); }
.hero .lede { font-size: 1.22rem; }
.hero-grid { display: grid; grid-template-columns: .92fr 1.18fr; gap: var(--s-7); align-items: center; }
@media (max-width: 1060px) { .hero-grid { grid-template-columns: 1fr; } }
.hero-note { font-size: .82rem; color: var(--slate-400); margin-top: var(--s-4); }
.page-hero { padding: var(--s-9) 0 var(--s-8); }
.page-hero h1 { max-width: 20ch; }
.breadcrumbs { font-size: .82rem; color: var(--slate-400); margin-bottom: var(--s-4); }
.breadcrumbs a { color: var(--slate-300); text-decoration: none; }

/* ------------------------------------------------------------------ live demo panel */
.demo-panel { background: var(--white); color: var(--ink-900); border-radius: var(--r-lg); border: 1px solid var(--slate-200); box-shadow: 0 30px 80px rgba(0,0,0,.35); overflow: hidden; }
.demo-bar { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--slate-200); background: var(--paper); font-size: .8rem; color: var(--slate-500); }
.demo-bar .dots { display: flex; gap: 6px; } .demo-bar .dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--slate-300); display: block; }
.demo-bar .title { font-family: var(--font-mono); }
.demo-bar .badge { margin-left: auto; }
.demo-body { display: grid; grid-template-columns: 205px 1fr; min-height: 360px; }
@media (max-width: 640px) { .demo-body { grid-template-columns: 1fr; } }
.demo-controls { padding: var(--s-4); border-right: 1px solid var(--slate-200); font-size: .85rem; display: flex; flex-direction: column; gap: 12px; }
.demo-controls label { display: block; font-weight: 600; font-size: .74rem; letter-spacing: .04em; text-transform: uppercase; color: var(--slate-500); margin-bottom: 4px; }
.demo-controls select, .demo-controls input { width: 100%; font: inherit; font-size: .88rem; padding: 7px 9px; border: 1px solid var(--slate-300); border-radius: 6px; background: #fff; color: var(--ink-900); }
.demo-stage { position: relative; display: flex; flex-direction: column; min-width: 0; }
.demo-stage canvas { width: 100%; height: 250px; background: linear-gradient(#fff, #F3F5F8); cursor: grab; }
.demo-readout { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--slate-200); }
.demo-readout div { padding: 10px 14px; border-right: 1px solid var(--slate-200); }
.demo-readout div:last-child { border-right: 0; }
.demo-readout dt { font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--slate-500); }
.demo-readout dd { margin: 2px 0 0; font: 600 .98rem/1.2 var(--font-sans); font-variant-numeric: tabular-nums; white-space: nowrap; }
.pipeline-mini { display: flex; border-top: 1px solid var(--slate-200); font-size: .72rem; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .04em; }
.pipeline-mini span { flex: 1; padding: 9px 6px; text-align: center; color: var(--slate-400); border-right: 1px solid var(--slate-200); transition: background .25s, color .25s; }
.pipeline-mini span:last-child { border-right: 0; }
.pipeline-mini span.done { color: var(--green-600); background: var(--green-100); }
.pipeline-mini span.active { color: var(--accent-700); background: var(--accent-100); }
.pipeline-mini span.hold { color: var(--amber-600); background: var(--amber-100); }
.validation { font-size: .8rem; padding: 8px 10px; border-radius: 6px; line-height: 1.35; }
.validation.ok { background: var(--green-100); color: var(--green-600); }
.validation.warn { background: var(--amber-100); color: var(--amber-600); }
.validation.err { background: var(--red-100); color: var(--red-600); }

/* ------------------------------------------------------------------ pipeline section */
.pipeline { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; counter-reset: step; border: 1px solid var(--slate-200); border-radius: var(--r-md); overflow: hidden; background: var(--white); }
.pipeline li { list-style: none; padding: var(--s-5) var(--s-4); border-right: 1px solid var(--slate-200); position: relative; counter-increment: step; }
.pipeline li:last-child { border-right: 0; }
.pipeline li::before { content: "0" counter(step); font-family: var(--font-mono); font-size: .75rem; color: var(--accent-600); display: block; margin-bottom: var(--s-3); }
.pipeline h3 { font-size: .98rem; margin-bottom: 6px; text-transform: uppercase; letter-spacing: .04em; }
.pipeline p { font-size: .88rem; color: var(--slate-600); margin: 0; }
@media (max-width: 980px) { .pipeline { grid-template-columns: repeat(2, 1fr); } .pipeline li { border-bottom: 1px solid var(--slate-200); } }
@media (max-width: 560px) { .pipeline { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ problem / flow */
.loop { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s-3); counter-reset: l; }
.loop div { border: 1px dashed var(--slate-300); border-radius: var(--r-sm); padding: var(--s-4); font-size: .92rem; background: var(--white); counter-increment: l; }
.loop div::before { content: counter(l); font-family: var(--font-mono); font-size: .72rem; color: var(--slate-400); display: block; }
@media (max-width: 860px) { .loop { grid-template-columns: repeat(2, 1fr); } }

/* ------------------------------------------------------------------ feature list */
.feature { display: flex; gap: var(--s-4); }
.feature .icon { flex: none; }
.checklist { list-style: none; padding: 0; margin: 0 0 var(--s-4); }
.checklist li { padding-left: 28px; position: relative; margin-bottom: 10px; }
.checklist li::before { content: ""; position: absolute; left: 2px; top: 8px; width: 12px; height: 7px; border-left: 2px solid var(--accent-500); border-bottom: 2px solid var(--accent-500); transform: rotate(-45deg); }
.dark .checklist li::before { border-color: var(--accent-500); }
.kv { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--slate-200); border-left: 1px solid var(--slate-200); }
.kv > div { padding: var(--s-5); border-right: 1px solid var(--slate-200); border-bottom: 1px solid var(--slate-200); }
.kv strong { display: block; font-family: var(--font-display); font-size: 1.6rem; letter-spacing: -0.02em; }
.kv span { color: var(--slate-500); font-size: .9rem; }
@media (max-width: 860px) { .kv { grid-template-columns: repeat(2, 1fr); } }

/* ------------------------------------------------------------------ screens / mock UI */
.screen { border-radius: var(--r-md); border: 1px solid var(--slate-200); background: var(--white); box-shadow: var(--shadow-2); overflow: hidden; font-size: .84rem; }
.screen-head { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; background: var(--paper); border-bottom: 1px solid var(--slate-200); font-weight: 600; }
.screen table { width: 100%; border-collapse: collapse; }
.screen td, .screen th { padding: 9px 14px; border-bottom: 1px solid var(--slate-100); text-align: left; }
.screen th { font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--slate-500); font-weight: 600; }
.screen .mono { font-family: var(--font-mono); font-size: .8rem; }
.code { background: var(--ink-950); color: #D7DEE8; border-radius: var(--r-md); padding: var(--s-5); overflow-x: auto; font-size: .84rem; line-height: 1.55; border: 1px solid var(--ink-700); }
.code .c { color: #7D8BA1; } .code .k { color: #F3A77C; } .code .s { color: #9DD3A8; }
pre.code { margin: 0 0 var(--s-5); white-space: pre; }

/* ------------------------------------------------------------------ tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--slate-200); border-radius: var(--r-md); }
table.data { width: 100%; border-collapse: collapse; font-size: .93rem; background: var(--white); }
table.data th, table.data td { padding: 12px 16px; border-bottom: 1px solid var(--slate-200); text-align: left; vertical-align: top; }
table.data thead th { background: var(--paper); font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--slate-600); position: sticky; top: 0; }
table.data tbody th { font-weight: 500; color: var(--ink-900); }
table.data .group td { background: var(--paper); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--slate-600); }
.yes { color: var(--green-600); font-weight: 600; } .no { color: var(--slate-400); }

/* ------------------------------------------------------------------ pricing */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-5); align-items: stretch; }
@media (max-width: 980px) { .plans { grid-template-columns: 1fr; } }
.plan { display: flex; flex-direction: column; border: 1px solid var(--slate-200); border-radius: var(--r-lg); padding: var(--s-6); background: #fff; }
.plan.featured { border-color: var(--ink-900); box-shadow: var(--shadow-2); position: relative; }
.plan.featured::before { content: "Most common starting point"; position: absolute; top: -12px; left: var(--s-6); background: var(--ink-900); color: #fff; font-size: .72rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; }
.plan .price { font-family: var(--font-display); font-size: 2.3rem; letter-spacing: -0.03em; margin: var(--s-3) 0 0; }
.plan .price small { font-size: .95rem; color: var(--slate-500); font-family: var(--font-sans); letter-spacing: 0; }
.plan .muted { color: var(--slate-500); font-size: .9rem; }
.plan .checklist { margin-top: var(--s-5); flex: 1; font-size: .94rem; }

/* ------------------------------------------------------------------ forms */
.form { display: grid; gap: var(--s-4); }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-4); }
@media (max-width: 640px) { .form .row { grid-template-columns: 1fr; } }
.field label { display: block; font-weight: 600; font-size: .88rem; margin-bottom: 6px; }
.field .hint { font-weight: 400; color: var(--slate-500); font-size: .82rem; }
.field input, .field select, .field textarea { width: 100%; font: inherit; font-size: .97rem; padding: 11px 12px; border: 1px solid var(--slate-300); border-radius: var(--r-sm); background: #fff; color: var(--ink-900); }
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent-500); box-shadow: var(--focus); }
.field [aria-invalid="true"] { border-color: var(--red-600); }
.field .error { color: var(--red-600); font-size: .84rem; margin-top: 6px; display: none; }
.field [aria-invalid="true"] ~ .error { display: block; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: .9rem; }
.check input { margin-top: 5px; width: 16px; height: 16px; accent-color: var(--accent-500); }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-status { padding: var(--s-4); border-radius: var(--r-sm); display: none; }
.form-status.show { display: block; }
.form-status.ok { background: var(--green-100); color: var(--green-600); }
.form-status.err { background: var(--red-100); color: var(--red-600); }
input[type=range] { accent-color: var(--accent-500); width: 100%; }

/* ------------------------------------------------------------------ callouts */
.callout { border-left: 3px solid var(--accent-500); background: var(--accent-100); padding: var(--s-4) var(--s-5); border-radius: 0 var(--r-sm) var(--r-sm) 0; margin: var(--s-5) 0; font-size: .95rem; }
.callout.info { border-color: var(--blue-600); background: var(--blue-100); }
.callout.warn { border-color: var(--amber-600); background: var(--amber-100); }
.callout p:last-child { margin: 0; }
.notice-bar { background: var(--amber-100); color: var(--amber-600); font-size: .86rem; padding: 10px 0; border-bottom: 1px solid #F1D9A8; }

/* ------------------------------------------------------------------ CTA band */
.cta-band { padding: var(--s-9) 0; text-align: center; }
.cta-band h2 { max-width: 22ch; margin-left: auto; margin-right: auto; }
.cta-band .btn-row { justify-content: center; margin-top: var(--s-6); }

/* ------------------------------------------------------------------ prose (docs/legal) */
.prose { max-width: 760px; }
.prose h2 { font-size: 1.6rem; margin-top: var(--s-7); }
.prose h3 { margin-top: var(--s-6); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin-bottom: 6px; }
.prose table { border-collapse: collapse; width: 100%; font-size: .92rem; margin: var(--s-4) 0 var(--s-5); display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--slate-200); padding: 8px 12px; text-align: left; vertical-align: top; }
.prose th { background: var(--paper); }
.prose pre { background: var(--ink-950); color: #D7DEE8; padding: var(--s-4); border-radius: var(--r-sm); overflow-x: auto; font-size: .84rem; }
.prose code { background: var(--slate-100); padding: 1px 5px; border-radius: 4px; }
.prose pre code { background: none; padding: 0; }
.prose blockquote { margin: var(--s-5) 0; padding: var(--s-3) var(--s-5); border-left: 3px solid var(--slate-300); color: var(--slate-600); }
.docs-layout { display: grid; grid-template-columns: 240px 1fr; gap: var(--s-7); padding: var(--s-7) 0 var(--s-9); }
.docs-nav { position: sticky; top: 92px; align-self: start; font-size: .92rem; max-height: calc(100vh - 110px); overflow: auto; }
.docs-nav h4 { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--slate-500); margin: var(--s-5) 0 var(--s-2); }
.docs-nav a { display: block; padding: 5px 10px; color: var(--ink-900); text-decoration: none; border-radius: 6px; }
.docs-nav a:hover { background: var(--paper); }
.docs-nav a[aria-current="page"] { background: var(--accent-100); color: var(--accent-700); font-weight: 600; }
@media (max-width: 860px) { .docs-layout { grid-template-columns: 1fr; } .docs-nav { position: static; max-height: none; } }
.endpoint { border: 1px solid var(--slate-200); border-radius: var(--r-sm); margin-bottom: var(--s-3); }
.endpoint summary { padding: 10px 14px; cursor: pointer; display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.endpoint .m { font: 600 .74rem/1 var(--font-mono); padding: 4px 7px; border-radius: 4px; min-width: 56px; text-align: center; }
.m.get { background: var(--blue-100); color: var(--blue-600); } .m.post { background: var(--green-100); color: var(--green-600); }
.m.put { background: var(--amber-100); color: var(--amber-600); } .m.delete { background: var(--red-100); color: var(--red-600); }
.endpoint .p { font-family: var(--font-mono); font-size: .88rem; min-width: 0; overflow-wrap: anywhere; }
.endpoint .body table { display: block; overflow-x: auto; }
.endpoint .d { color: var(--slate-500); font-size: .88rem; }
.endpoint .body { padding: 0 14px 14px; font-size: .88rem; }

/* ------------------------------------------------------------------ footer */
.site-footer { background: var(--ink-950); color: var(--slate-400); padding: var(--s-8) 0 var(--s-6); font-size: .9rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(5, 1fr); gap: var(--s-5); }
@media (max-width: 980px) { .footer-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
.site-footer h4 { color: #fff; font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; font-family: var(--font-sans); margin-bottom: var(--s-3); }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: var(--slate-400); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid var(--ink-700); margin-top: var(--s-7); padding-top: var(--s-5); display: flex; flex-wrap: wrap; gap: var(--s-4); justify-content: space-between; font-size: .82rem; }

/* ------------------------------------------------------------------ ROI */
.roi { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-6); }
@media (max-width: 900px) { .roi { grid-template-columns: 1fr; } }
.roi .out { background: var(--ink-950); color: #fff; border-radius: var(--r-lg); padding: var(--s-6); }
.roi .out dl { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-5); margin: 0; }
.roi .out dt { color: var(--slate-400); font-size: .82rem; }
.roi .out dd { margin: 4px 0 0; font: 600 1.7rem/1.1 var(--font-display); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.slider-field output { float: right; font-variant-numeric: tabular-nums; font-weight: 600; color: var(--ink-900); }

/* ------------------------------------------------------------------ status */
.status-row { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--slate-200); }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; margin-right: 8px; background: var(--slate-300); }
.dot.ok { background: var(--green-600); } .dot.warn { background: var(--amber-600); } .dot.err { background: var(--red-600); }

/* ------------------------------------------------------------------ drawing preview */
.drawing-frame { border: 1px solid var(--slate-300); border-radius: var(--r-sm); background: #fff; padding: 8px; }
.drawing-frame img { width: 100%; height: auto; }

/* tabs */
[role=tab][aria-selected="true"] { background: var(--ink-900); color: #fff; border-color: var(--ink-900); }
[role=tab][aria-selected="true"]:hover { color: #fff; }
.demo-split { display: grid; grid-template-columns: 1.35fr 1fr; gap: var(--s-5); align-items: start; }
@media (max-width: 980px) { .demo-split { grid-template-columns: 1fr; } }