/* ============================================================
   PAPERCLIP DESIGN SYSTEM v1.0 — site styles
   ------------------------------------------------------------
   This stylesheet powers the design-system documentation page
   itself. It uses the tokens it documents — so every change
   to the tokens block flows through the whole document.
   ============================================================ */

/* ---------- 1. TOKENS ----------------------------------------- */

:root {
  /* ── Brand neutrals — warm material vocabulary, always literal ── */
  --bond:      #FFFFFF;        /* pure white */
  --linen:     #F5F3F0;        /* softest warm off-white */
  --parchment: #F0ECE7;        /* warm light gray — secondary surface */
  --manila:    #F3E6C4;        /* warm cream — display tone on dark contexts */
  --vellum:    #E0DCD6;        /* mid-warm light gray — borders, rule */
  --steel:     #D8DCDF;        /* warm-cool light gray */
  --aluminum:  #A8AEB2;        /* mid-light gray — muted text */
  --graphite:  #52585D;        /* mid-dark gray — secondary text */
  --charcoal:  #141413;        /* warm near-black — dark-mode bg */
  --ink:       #0A0A0A;        /* near-black — primary text */

  /* ── Brand accent + status — literal across themes ── */
  --signal:        #22C55E;    /* signal green — active / success / alive */
  --signal-soft:   #DCFCE7;    /* mint wash */
  --signal-deep:   #188A3C;    /* signal green pressed / text-on-soft */
  --amber:         #F59E0B;    /* warning / interrupt */
  --amber-soft:    #FEF3C7;
  --amber-deep:    #B45309;
  --red:           #DC2626;    /* destructive / blocked */
  --red-soft:      #FEE2E2;
  --red-deep:      #991B1B;
  --blue:          #2563EB;    /* info / in-review */
  --blue-soft:     #DBEAFE;
  --blue-deep:     #1D4ED8;
  --violet:        #7C3AED;    /* alternate accent option */
  --violet-soft:   #EDE9FE;
  --violet-deep:   #5B21B6;

  /* ── Agent palette — 12 presets (brand only — capsules, org nodes, never chrome) ── */
  --agent-1a:  #F7CFDC; --agent-1b:  #1F7A3A;
  --agent-2a:  #C9A9E8; --agent-2b:  #EE79A1;
  --agent-3a:  #28164B; --agent-3b:  #7A1530;
  --agent-4a:  #F3E6C4; --agent-4b:  #E3A21A;
  --agent-5a:  #1F4DD6; --agent-5b:  #3AA35C;
  --agent-6a:  #E94B27; --agent-6b:  #5A1122;
  --agent-7a:  #7EB6E3; --agent-7b:  #EE79A1;
  --agent-8a:  #9CE8A7; --agent-8b:  #BD7FF0;
  --agent-9a:  #F3B49E; --agent-9b:  #1F4ED4;
  --agent-10a: #F2D95F; --agent-10b: #4FBCBA;
  --agent-11a: #C2C2E8; --agent-11b: #5E3450;
  --agent-12a: #4DB9B7; --agent-12b: #3AA35C;

  /* ── Type stacks ── */
  --font-display: 'Inter Tight', 'Inter', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* ── Border radius scale ── */
  --r-xs:   4px;     /* chips, status pills internals */
  --r-sm:  10px;     /* inputs, small cards */
  --r-md:  16px;     /* default card / panel */
  --r-lg:  24px;     /* large surfaces, modals */
  --r-pill: 9999px;  /* primary CTA + capsule motif */

  /* ── Spacing — 4 base, fluid where it scales ── */
  --space-1:  4px;
  --space-2:  8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;
  --space-lg:      clamp(2rem, 1.5rem + 1.5vw, 3rem);
  --space-xl:      clamp(3rem, 2rem + 3vw,   5rem);
  --space-section: clamp(5rem, 3rem + 5.5vw, 9rem);

  /* ── Motion ── */
  --ease-out:  cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-in:   cubic-bezier(0.4, 0, 1, 0.6);
  --ease-inout:cubic-bezier(0.65, 0, 0.35, 1);
  --dur-micro:  120ms;
  --dur-short:  200ms;
  --dur-medium: 400ms;
  --dur-long:   700ms;

  /* ── Elevation — hairlines, not shadows (editorial / industrial) ── */
  --hairline: 1px solid var(--rule);

  /* ── Layout ── */
  --container: 1280px;
  --gutter:    32px;
  --toc-w:     260px;
  --meta-panel-w: 320px;

  /* ── SEMANTIC TOKENS — light defaults; dark overrides below ── */
  --bg:           var(--bond);
  --bg-alt:       var(--linen);
  --surface:      var(--parchment);
  --surface-2:    var(--linen);
  --rule:         var(--vellum);
  --rule-strong:  var(--graphite);
  --text:         var(--ink);
  --text-2:       var(--graphite);
  --text-muted:   var(--aluminum);
  --input-bg:     var(--bond);
  --accent:       var(--signal);
  --accent-fg:    #FFFFFF;
  --accent-soft:  var(--signal-soft);
  --accent-deep:  var(--signal-deep);
  --focus-ring:   var(--ink);
  --selection-bg: var(--ink);
  --selection-fg: var(--manila);

  /* on-dark callout colors (literal — used inside .invert sections regardless of theme) */
  --on-dark-bg:    var(--ink);
  --on-dark-text:  var(--manila);
  --on-dark-muted: #9A958A;
  --on-dark-rule:  #2F2C28;
}

/* ── Dark theme ── */
[data-theme="dark"] {
  --bg:          var(--charcoal);
  --bg-alt:      #1F1D1A;
  --surface:     #1F1D1A;
  --surface-2:   #18161410;
  --rule:        #2F2C28;
  --rule-strong: #9A958A;
  --text:        var(--manila);
  --text-2:      #9A958A;
  --text-muted:  #6E6960;
  --input-bg:    #1F1D1A;
  --accent:      var(--signal);
  --accent-fg:   var(--ink);
  --accent-soft: rgba(34, 197, 94, 0.14);
  --accent-deep: var(--signal);
  --focus-ring:  var(--manila);
  --selection-bg: var(--manila);
  --selection-fg: var(--ink);

  /* Status soft fills — rgba washes instead of light-mode pastels */
  --signal-soft: rgba(34, 197, 94, 0.12);
  --amber-soft:  rgba(245, 158, 11, 0.14);
  --red-soft:    rgba(220, 38, 38, 0.18);
  --blue-soft:   rgba(37, 99, 235, 0.18);
  --violet-soft: rgba(124, 58, 237, 0.20);

  /* Status text on washes — brighter legible tones on dark surfaces */
  --signal-deep: var(--signal);
  --amber-deep:  #FCD34D;
  --red-deep:    #FCA5A5;
  --blue-deep:   #93C5FD;
  --violet-deep: #C4B5FD;
}

/* ── Compact density ── */
[data-density="compact"] {
  --space-7: 36px;
  --space-8: 48px;
  --space-9: 72px;
  --space-10: 96px;
  --space-section: clamp(3rem, 2rem + 3vw, 6rem);
}

/* ---------- 2. BASE ------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  font-feature-settings: 'ss01', 'cv11';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background var(--dur-medium) var(--ease-out),
              color      var(--dur-medium) var(--ease-out);
}

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

/* Link text in body copy — ink in light, manila in dark, with an underline so it reads as a link. */
p a,
.lede a,
.body a,
.body-sm a,
.subsection-intro a,
.anno a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: opacity var(--dur-short) var(--ease-out);
}
p a:hover,
.lede a:hover,
.body a:hover,
.body-sm a:hover,
.subsection-intro a:hover,
.anno a:hover { opacity: 0.7; }

/* Tool / repo links — ink (light) or manila (dark), underline on hover only */
.subsection-intro a.link-tool,
.link-tool {
  color: var(--ink);
  text-decoration: none;
}
.subsection-intro a.link-tool:hover,
.link-tool:hover {
  color: var(--ink);
  opacity: 1;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
[data-theme="dark"] .subsection-intro a.link-tool,
[data-theme="dark"] .link-tool {
  color: var(--manila);
}
[data-theme="dark"] .subsection-intro a.link-tool:hover,
[data-theme="dark"] .link-tool:hover {
  color: var(--manila);
  opacity: 1;
}

::selection { background: var(--selection-bg); color: var(--selection-fg); }
::-moz-selection { background: var(--selection-bg); color: var(--selection-fg); }

img, svg, video { max-width: 100%; display: block; }

/* ---------- 3. HEADER ---------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--rule);
}
.site-header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.brand-wordmark {
  color: var(--text);
  flex-shrink: 0;
  display: block;
}
.brand-sub {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  padding-left: 10px;
  margin-left: 6px;
  border-left: 1px solid var(--rule);
}
.site-header-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.site-header-start {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1;
}

/* Mobile nav toggle — hidden on desktop */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  background: var(--input-bg);
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color var(--dur-short) var(--ease-out);
}
.nav-toggle:hover { border-color: var(--text); }
.nav-toggle-icon { display: block; }
.nav-toggle-icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle-icon-menu { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle-icon-close { display: block; }

.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 55;
  background: color-mix(in srgb, var(--ink) 40%, transparent);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-short) var(--ease-out);
}
.nav-backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}
body.nav-open { overflow: hidden; }

.version-picker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  padding: 6px 10px 6px 14px;
  background: var(--input-bg);
  transition: border-color var(--dur-short) var(--ease-out);
}
.version-picker:hover { border-color: var(--text); }
.version-picker-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.version-picker select {
  border: 0;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
  padding-right: 18px;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
                    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 8px) 50%, calc(100% - 4px) 50%;
  background-size: 4px 4px;
  background-repeat: no-repeat;
}
.version-picker select:focus { outline: none; }

@media (min-width: 881px) {
  .version-picker {
    width: var(--meta-panel-w);
    box-sizing: border-box;
    justify-content: space-between;
  }
  .version-picker select {
    flex: 1;
    min-width: 0;
  }
}

.header-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
  background: var(--input-bg);
  cursor: pointer;
  transition: border-color var(--dur-short) var(--ease-out),
              background var(--dur-short) var(--ease-out);
}
.header-btn:hover { border-color: var(--text); }
/* Theme toggle — floating action button (FAB) in bottom-right */
#theme-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  padding: 0;
  border-radius: 9999px;
  background: var(--bg);
  border: 1px solid var(--rule);
  box-shadow: 0 4px 14px rgba(0,0,0,0.10), 0 1px 3px rgba(0,0,0,0.04);
  justify-content: center;
  transition:
    box-shadow var(--dur-short) var(--ease-out),
    transform var(--dur-short) var(--ease-out),
    background var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out);
}
#theme-toggle:hover {
  border-color: var(--text);
  box-shadow: 0 6px 20px rgba(0,0,0,0.14), 0 2px 4px rgba(0,0,0,0.06);
  transform: translateY(-1px);
}
#theme-toggle .theme-icon { width: 20px; height: 20px; }
[data-theme="dark"] #theme-toggle {
  background: var(--surface);
  border-color: var(--rule);
  box-shadow: 0 4px 14px rgba(0,0,0,0.40), 0 1px 3px rgba(0,0,0,0.20);
}
[data-theme="dark"] #theme-toggle:hover {
  border-color: var(--manila);
  box-shadow: 0 6px 20px rgba(0,0,0,0.50), 0 2px 4px rgba(0,0,0,0.25);
}
#theme-toggle .theme-icon { width: 16px; height: 16px; display: block; }
#theme-toggle .theme-icon-sun  { display: none; }
#theme-toggle .theme-icon-moon { display: block; }
[data-theme="dark"] #theme-toggle .theme-icon-sun  { display: block; }
[data-theme="dark"] #theme-toggle .theme-icon-moon { display: none; }
#theme-toggle .theme-label,
#theme-toggle .theme-dot { display: none; }

.theme-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text);
}
[data-theme="dark"] .theme-dot {
  background: var(--manila);
}

/* ---------- 4. LAYOUT ---------------------------------------- */

.layout {
  display: grid;
  grid-template-columns: var(--toc-w) minmax(0, 1fr);
  gap: var(--space-7);
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
@media (max-width: 980px) {
  :root { --gutter: 16px; }
  html, body { overflow-x: clip; }
  .layout { display: block; gap: var(--space-5); }
  .nav-toggle { display: inline-flex; }
  .site-header-inner { padding-top: 12px; padding-bottom: 12px; gap: 12px; }
  .brand-sub { display: none; }
  .example:not(.table-wrap):not(.scroll-x) { padding: 16px; overflow-x: clip; }
  .example.table-wrap,
  .example.scroll-x {
    overflow-x: auto;
    width: 100%;
    max-width: 100%;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
  }
  .example.table-wrap { padding: 0; }
  .example.dense { padding: 12px; }
  .hero { padding-top: var(--space-7); padding-bottom: var(--space-6); }
  .section { padding-top: var(--space-7); padding-bottom: var(--space-7); }
  .subsection-head { min-width: 0; }
}
@media (max-width: 640px) {
  .version-picker-label { display: none; }
  .version-picker {
    padding: 6px 10px;
    max-width: clamp(96px, 38vw, 140px);
    min-width: 0;
  }
  .version-picker select {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .site-header-meta {
    flex-shrink: 1;
    min-width: 0;
  }
  .site-header-meta .header-btn { display: none; }
  #gen-wrap { grid-template-columns: 1fr !important; }
  #gen-canvas-wrap { order: -1; }
}
@media (max-width: 480px) {
  .brand-wordmark { height: 20px; width: auto; }
}

/* TOC */
.toc {
  position: sticky;
  top: 80px;
  align-self: start;
  padding: var(--space-7) 0 var(--space-6);
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}
@media (max-width: 980px) {
  .toc {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(92vw, 340px);
    z-index: 60;
    max-height: none;
    padding: 0 var(--space-4) var(--space-6);
    background: var(--bg);
    border-right: 1px solid var(--rule);
    transform: translateX(-100%);
    transition: transform var(--dur-short) var(--ease-out);
    overflow-y: auto;
  }
  .toc.is-open { transform: translateX(0); }
  .toc-inner { gap: 0; }
  .toc-head {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    padding: 12px 0;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--rule);
    position: sticky;
    top: 0;
    background: var(--bg);
    z-index: 1;
  }
  .toc-close { display: inline-flex; }
  .toc-meta { margin-left: auto; }
}
@media (prefers-reduced-motion: reduce) {
  .toc { transition: none; }
  .nav-backdrop { transition: none; }
}
.toc-inner { display: flex; flex-direction: column; gap: 28px; }
.toc-head {
  display: block;
}
@media (min-width: 981px) {
  .toc-close { display: none; }
}
.toc-close {
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  background: var(--input-bg);
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color var(--dur-short) var(--ease-out);
}
.toc-close:hover { border-color: var(--text); }
.toc-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}
.toc-eyebrow {
  color: var(--text);
  font-weight: 500;
  letter-spacing: 0.04em;
}
.toc-dot {
  width: 4px; height: 4px; border-radius: 50%; background: var(--text-muted);
}
.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}
.toc-list li {
  border-top: 1px solid var(--rule);
}
.toc-list li:last-child { border-bottom: 1px solid var(--rule); }
.toc-list a {
  display: block;
  padding: 10px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  letter-spacing: 0.01em;
  transition: color var(--dur-short) var(--ease-out), padding-left var(--dur-short) var(--ease-out);
}
.toc-list a:hover {
  color: var(--text);
  padding-left: 4px;
}
.toc-list a.active {
  color: var(--text);
}
.toc-list a.active::after {
  content: '';
  display: inline-block;
  width: 14px;
  height: 1px;
  background: var(--text);
  vertical-align: middle;
  margin-left: 8px;
}
/* Main column */
.main { min-width: 0; padding-bottom: var(--space-10); }

/* ---------- 5. TYPOGRAPHY ------------------------------------ */

.display-1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(42px, 5.5vw, 80px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin: 0;
  text-wrap: balance;
  overflow-wrap: break-word;
  hyphens: auto;
}
.display-2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(40px, 5.5vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin: 0;
  text-wrap: balance;
}
.display-3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 3.5vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0;
  text-wrap: balance;
}
.display-4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0;
}
.lede {
  font-size: 20px;
  line-height: 1.45;
  color: var(--text-2);
  max-width: 56ch;
  margin: 24px 0 0;
  text-wrap: pretty;
}
.lede strong { color: var(--text); font-weight: 500; }
.body { font-size: 16px; line-height: 1.6; }
.body-sm { font-size: 14px; line-height: 1.5; }
.caption {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  font-feature-settings: 'tnum' 1;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 6px 14px;
  border: 1px solid var(--rule);
  border-radius: 9999px;
  background: var(--input-bg);
  margin-bottom: 28px;
}
.eyebrow-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-right: 10px;
  padding-right: 10px;
  border-right: 1px solid var(--rule);
}
.eyebrow-line { display: none; }
.eyebrow-label {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}

/* ---------- 6. HERO ------------------------------------------ */

.hero {
  padding: var(--space-9) 0 var(--space-8);
  border-bottom: 1px solid var(--rule);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr var(--meta-panel-w);
  gap: var(--space-7);
  align-items: end;
}
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-5); }
}
.hero-text { min-width: 0; }
.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 40px;
}
.hero-aside {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hero-card {
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  background: var(--surface);
  padding: 20px;
  display: flex;
  flex-direction: column;
}
@media (min-width: 881px) {
  .hero-card { width: var(--meta-panel-w); box-sizing: border-box; }
}
.hero-card-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  font-size: 13px;
}
.hero-card-row + .hero-card-row { border-top: 1px solid var(--rule); }
.hc-k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.hc-v {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
}
.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}
.status-dot--live { background: var(--signal); }
.capsule-stack {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  height: 120px;
  padding: 12px;
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  background: var(--bg-alt);
}
.cap-mini {
  flex: 1;
  border-radius: 9999px;
  min-width: 14px;
}
.cap-mini:nth-child(1) { height: 60%; }
.cap-mini:nth-child(2) { height: 90%; }
.cap-mini:nth-child(3) { height: 45%; }
.cap-mini:nth-child(4) { height: 100%; }
.cap-mini:nth-child(5) { height: 75%; }

/* ---------- 7. SECTIONS -------------------------------------- */

.section {
  padding: var(--space-9) 0;
  border-bottom: 1px solid var(--rule);
}
.section:last-child { border-bottom: 0; }
.section > .section-head { margin-bottom: var(--space-7); }
.section-head { max-width: 64ch; }
.section-head .display-2 { margin-top: 12px; }
.section-head .lede { margin-top: 24px; }

.subsection { margin-top: var(--space-8); }
.subsection-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: var(--space-5);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}
.subsection-head h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0;
}
.subsection-head .subsection-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.subsection-intro {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-2);
  max-width: 64ch;
  margin: 0 0 var(--space-5);
}

/* ---------- 8. BUTTONS --------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: background var(--dur-short) var(--ease-out),
              color      var(--dur-short) var(--ease-out),
              border-color var(--dur-short) var(--ease-out);
  text-decoration: none;
  white-space: nowrap;
}
/* Primary CTA — matches paperclip.ing:
   default: ink fill, bond text, pill
   hover:   inverts — transparent fill, ink border, ink text
   dark mode: bond fill → transparent fill + bond border on hover */
.btn-primary {
  background: var(--ink);
  color: var(--bond);
  border: 1px solid var(--ink);
  font-weight: 500;
  padding: 13px 26px;
}
.btn-primary:hover {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
[data-theme="dark"] .btn-primary { background: var(--manila); color: var(--ink); border-color: var(--manila); }
[data-theme="dark"] .btn-primary:hover { background: var(--ink); color: var(--manila); border-color: var(--manila); }

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--text);
  border-radius: var(--r-pill);
}
.btn-secondary:hover {
  background: var(--text);
  color: var(--bg);
}
[data-theme="dark"] .btn-secondary { color: var(--manila); border-color: var(--manila); }
[data-theme="dark"] .btn-secondary:hover { background: var(--manila); color: var(--ink); }

.btn-ghost {
  background: transparent;
  color: var(--text-2);
  border: 0;
  padding: 12px 14px;
}
.btn-ghost:hover { color: var(--text); }

.btn-accent {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  color: #fff;
  outline: none;
}
[data-theme="dark"] .btn-accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
[data-theme="dark"] .btn-accent:hover {
  background: #14532D;
  border-color: #14532D;
  color: #86EFAC;
  outline: none;
}

/* Destructive variant — red fill, deeper red on hover */
.btn-danger {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}
.btn-danger:hover {
  background: var(--red-deep);
  border-color: var(--red-deep);
  color: #fff;
  outline: none;
}
[data-theme="dark"] .btn-danger {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}
[data-theme="dark"] .btn-danger:hover {
  background: #7F1D1D;
  border-color: #7F1D1D;
  color: #FCA5A5;
  outline: none;
}

.btn-sm { font-size: 13px; padding: 8px 14px; }
.btn-icon { padding: 10px; border-radius: var(--r-pill); }

/* State explorer demo buttons — force a specific visual state, theme-aware */
.state-demo-hover { background: transparent !important; color: var(--ink) !important; border-color: var(--ink) !important; }
[data-theme="dark"] .state-demo-hover { background: var(--ink) !important; color: var(--manila) !important; border-color: var(--manila) !important; }
.state-demo-active {
  background: transparent !important;
  color: var(--ink) !important;
  border-color: var(--ink) !important;
  transform: translateY(1px);
}
[data-theme="dark"] .state-demo-active {
  background: var(--ink) !important;
  color: var(--manila) !important;
  border-color: var(--manila) !important;
  transform: translateY(1px);
}

/* Range slider — strip default browser borders and paint a visible track/thumb */
input[type="range"] {
  border: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  height: 20px;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  background: var(--rule);
  border-radius: 3px;
  border: 0;
}
input[type="range"]::-moz-range-track {
  height: 6px;
  background: var(--rule);
  border-radius: 3px;
  border: 0;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--text);
  border: 0;
  margin-top: -5px;
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--text);
  border: 0;
  cursor: pointer;
}

/* ---------- 9. CARDS / SURFACES ------------------------------
   Light mode references paperclip.ing /features section cells:
     bond bg · 1.5px stone border · 10px radius · hover → linen + darker border
   Dark mode references v13 BYOB section (08):
     bg · rule border · hover → surface bg, rule border, cream text
   ----------------------------------------------------------- */

.card {
  background: var(--bond);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 24px;
  transition: background var(--dur-short) var(--ease-out),
              color var(--dur-short) var(--ease-out);
}
.card:hover {
  background: var(--linen);
}
[data-theme="dark"] .card {
  background: var(--bg);
  border: 1px solid var(--rule);
}
[data-theme="dark"] .card:hover {
  background: var(--surface);
  color: var(--text);
}
.card-flat {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 24px;
}
.card-inverse {
  background: var(--on-dark-bg);
  color: var(--on-dark-text);
  border: 1px solid var(--on-dark-rule);
  border-radius: var(--r-md);
  padding: 24px;
}
.card-inverse .caption { color: var(--on-dark-muted); }

.byob-active-card {
  margin-top: 12px;
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 20px;
  background: var(--bond);
  color: var(--ink);
  cursor: pointer;
  transition: background var(--dur-short) var(--ease-out),
              color var(--dur-short) var(--ease-out);
}
[data-theme="dark"] .byob-active-card {
  background: var(--surface);
  color: var(--text);
}
.byob-active-card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.015em;
}
.byob-active-card__meta,
.byob-active-card__cost {
  font-family: var(--font-mono);
  color: var(--graphite);
}
.byob-active-card__meta { font-size: 11px; margin-top: 4px; }
.byob-active-card__cost { font-size: 12px; }
[data-theme="dark"] .byob-active-card__meta,
[data-theme="dark"] .byob-active-card__cost { color: var(--text-2); }
.byob-active-card__footer {
  display: flex;
  justify-content: space-between;
  margin-top: 18px;
}

/* Frame: bordered region for examples */
.example {
  position: relative;
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 32px;
  background: var(--bg);
  margin-top: var(--space-4);
  min-width: 0;
}
.example.dense { padding: 20px; }
.example-flush {
  padding: 0;
  overflow: hidden;
}
.example.inset { background: var(--surface); }
.example.invert {
  background: var(--on-dark-bg);
  color: var(--on-dark-text);
  border-color: var(--on-dark-rule);
}
.example.invert .caption,
.example.invert .ex-tag { color: var(--on-dark-muted); }
.example .ex-tag {
  position: absolute;
  top: 12px;
  right: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Two-column compare (do/don't, light/dark) */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: var(--space-4);
}
@media (max-width: 720px) { .compare { grid-template-columns: 1fr; } }
.compare > * { margin-top: 0; }
.compare-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--r-xs);
  margin-bottom: 12px;
}
.compare-label.good { color: var(--signal-deep); background: var(--signal-soft); }
.compare-label.bad  { color: var(--red-deep);    background: var(--red-soft); }
[data-theme="dark"] .compare-label.good { color: var(--signal); background: rgba(34,197,94,0.12); }
[data-theme="dark"] .compare-label.bad  { color: #FCA5A5;      background: rgba(220,38,38,0.18); }

/* Reusable status-pill tone classes — mirror compare-label good/bad. */
.pill-success { color: var(--signal-deep) !important; background: var(--signal-soft) !important; border-color: var(--signal) !important; }
.pill-danger  { color: var(--red-deep)    !important; background: var(--red-soft)    !important; border-color: var(--red)    !important; }
.pill-warning { color: var(--amber-deep)  !important; background: var(--amber-soft)  !important; border-color: var(--amber)  !important; }
.pill-info    { color: var(--blue-deep)   !important; background: var(--blue-soft)   !important; border-color: var(--blue)   !important; }
.pill-violet  { color: var(--violet-deep) !important; background: var(--violet-soft) !important; border-color: var(--violet) !important; }
[data-theme="dark"] .pill-success { color: var(--signal) !important; background: rgba(34,197,94,0.12) !important; border-color: rgba(34,197,94,0.45) !important; }
[data-theme="dark"] .pill-danger  { color: var(--red)    !important; background: rgba(220,38,38,0.18) !important; border-color: rgba(220,38,38,0.45) !important; }
[data-theme="dark"] .pill-warning { color: var(--amber)  !important; background: rgba(245,158,11,0.14) !important; border-color: rgba(245,158,11,0.45) !important; }
[data-theme="dark"] .pill-info    { color: var(--blue)   !important; background: rgba(37,99,235,0.18)  !important; border-color: rgba(37,99,235,0.45) !important; }
[data-theme="dark"] .pill-violet  { color: #C4B5FD       !important; background: rgba(124,58,237,0.20) !important; border-color: rgba(167,139,250,0.50) !important; }

/* Semantic pills + task state chips (§13 states) */
.semantic-pill,
.status-pill {
  display: inline-block;
  white-space: nowrap;
  vertical-align: middle;
}
.semantic-pill {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  border: 1px solid;
}

.task-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: var(--r-pill);
  border: 1px solid;
}
.task-chip svg { flex-shrink: 0; }
.task-chip--backlog { border-color: var(--aluminum); color: var(--graphite); background: var(--linen); }
/* PAP-75 remap: todo → amber (queued, not live), in_progress → blue (blue = liveness) */
.task-chip--todo { border-color: var(--amber); color: var(--amber-deep); background: var(--amber-soft); }
.task-chip--progress,
.task-chip--queue { border-color: var(--blue); color: var(--blue-deep); background: var(--blue-soft); }
.task-chip--review { border-color: var(--violet); color: var(--violet-deep); background: var(--violet-soft); }
.task-chip--done { border-color: var(--signal); color: var(--signal-deep); background: var(--signal-soft); }
.task-chip--canceled {
  border-color: var(--aluminum);
  color: var(--graphite);
  background: var(--linen);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}
.task-chip--blocked { border-color: var(--red); color: var(--red-deep); background: var(--red-soft); }

[data-theme="dark"] .task-chip--backlog,
[data-theme="dark"] .task-chip--canceled {
  color: var(--text-2);
  background: rgba(110, 105, 96, 0.14);
  border-color: rgba(158, 149, 138, 0.45);
}
[data-theme="dark"] .task-chip--todo {
  color: var(--amber);
  background: rgba(245, 158, 11, 0.14);
  border-color: rgba(245, 158, 11, 0.45);
}
[data-theme="dark"] .task-chip--progress,
[data-theme="dark"] .task-chip--queue {
  color: #5B8DEF;
  background: rgba(37, 99, 235, 0.18);
  border-color: rgba(37, 99, 235, 0.45);
}
[data-theme="dark"] .task-chip--review {
  color: #C4B5FD;
  background: rgba(124, 58, 237, 0.20);
  border-color: rgba(167, 139, 250, 0.50);
}
[data-theme="dark"] .task-chip--done {
  color: var(--signal);
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.45);
}
[data-theme="dark"] .task-chip--blocked {
  color: var(--red);
  background: rgba(220, 38, 38, 0.18);
  border-color: rgba(220, 38, 38, 0.45);
}

/* Kanban column headers — Inter labels in primary text; color on icon only */
.task-col-head {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
}
.task-col-head__count {
  margin-left: auto;
  color: var(--text);
  font-weight: 500;
}
.task-col-head--backlog svg { color: var(--graphite); }
.task-col-head--todo svg { color: var(--amber-deep); }
.task-col-head--progress svg { color: var(--blue-deep); }
.task-col-head--review svg { color: var(--violet-deep); }
.task-col-head--done svg { color: var(--signal-deep); }
.task-col-head--canceled svg { color: var(--graphite); }
.task-col-head--blocked svg { color: var(--red-deep); }

[data-theme="dark"] .task-col-head--backlog svg,
[data-theme="dark"] .task-col-head--canceled svg { color: var(--text-2); }
[data-theme="dark"] .task-col-head--todo svg { color: var(--amber); }
[data-theme="dark"] .task-col-head--progress svg { color: #5B8DEF; }
[data-theme="dark"] .task-col-head--review svg { color: #C4B5FD; }
[data-theme="dark"] .task-col-head--done svg { color: var(--signal); }
[data-theme="dark"] .task-col-head--blocked svg { color: var(--red); }

.task-icon-done-check { stroke: var(--bond); }
[data-theme="dark"] .task-icon-done-check { stroke: var(--bg); }

.kanban-card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12px;
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--text);
}

/* ---------- Brand chip palette (§13 · PAP-75 reference) -------
   Six semantic colour classes — compose with .task-chip for geometry:
   <span class="task-chip chip-c-blue">. Values are the exact PAP-75
   status-reference hexes; dark = translucent bg + solid text + 45% border. */
.chip-c-gray   { background: #F5F3F0; color: #52585D; border-color: #A8AEB2; }
.chip-c-blue   { background: #DBEAFE; color: #1D4ED8; border-color: #2563EB; }
.chip-c-amber  { background: #FEF3C7; color: #B45309; border-color: #F59E0B; }
.chip-c-green  { background: #DCFCE7; color: #188A3C; border-color: #22C55E; }
.chip-c-red    { background: #FEE2E2; color: #991B1B; border-color: #DC2626; }
.chip-c-violet { background: #EDE9FE; color: #5B21B6; border-color: #7C3AED; }
.chip-strike { text-decoration: line-through; text-decoration-thickness: 1px; }

/* Dark chip values — apply at page level AND inside any dark sample frame */
[data-theme="dark"] .chip-c-gray,   .status-frame--dark .chip-c-gray   { background: rgba(110, 105, 96, 0.14); color: #9A958A; border-color: rgba(158, 149, 138, 0.45); }
[data-theme="dark"] .chip-c-blue,   .status-frame--dark .chip-c-blue   { background: rgba(37, 99, 235, 0.18);  color: #5B8DEF; border-color: rgba(37, 99, 235, 0.45); }
[data-theme="dark"] .chip-c-amber,  .status-frame--dark .chip-c-amber  { background: rgba(245, 158, 11, 0.14); color: #F59E0B; border-color: rgba(245, 158, 11, 0.45); }
[data-theme="dark"] .chip-c-green,  .status-frame--dark .chip-c-green  { background: rgba(34, 197, 94, 0.12);  color: #34D06F; border-color: rgba(34, 197, 94, 0.45); }
[data-theme="dark"] .chip-c-red,    .status-frame--dark .chip-c-red    { background: rgba(220, 38, 38, 0.18);  color: #EF4444; border-color: rgba(220, 38, 38, 0.45); }
[data-theme="dark"] .chip-c-violet, .status-frame--dark .chip-c-violet { background: rgba(124, 58, 237, 0.18); color: #A78BFA; border-color: rgba(124, 58, 237, 0.45); }
/* A light frame always shows light chips, even when the page is dark (must follow the dark rules) */
.status-frame--light .chip-c-gray   { background: #F5F3F0; color: #52585D; border-color: #A8AEB2; }
.status-frame--light .chip-c-blue   { background: #DBEAFE; color: #1D4ED8; border-color: #2563EB; }
.status-frame--light .chip-c-amber  { background: #FEF3C7; color: #B45309; border-color: #F59E0B; }
.status-frame--light .chip-c-green  { background: #DCFCE7; color: #188A3C; border-color: #22C55E; }
.status-frame--light .chip-c-red    { background: #FEE2E2; color: #991B1B; border-color: #DC2626; }
.status-frame--light .chip-c-violet { background: #EDE9FE; color: #5B21B6; border-color: #7C3AED; }

/* ---------- Heartbeat capsule (agents) ------------------------
   Product token: 8×16, r4, solid fill. --display is the larger
   brand-page rendering used in the heartbeat ladder. */
.hb-capsule {
  display: inline-block;
  width: 8px;
  height: 16px;
  border-radius: 4px;
  flex: none;
  vertical-align: middle;
}
.hb-capsule--display { width: 14px; height: 28px; border-radius: 7px; }
.hb-capsule--gray  { background: #A8AEB2; }
.hb-capsule--blue  { background: #2563EB; }
.hb-capsule--amber { background: #F59E0B; }
.hb-capsule--red   { background: #DC2626; }
[data-theme="dark"] .hb-capsule--gray, .status-frame--dark .hb-capsule--gray { background: #6E6960; }
.status-frame--light .hb-capsule--gray { background: #A8AEB2; }
/* Motion: only running pulses; error blinks; idle/paused stay still */
.hb-capsule--pulse { animation: hb-pulse 1.6s ease-in-out infinite; }
.hb-capsule--blink { animation: hb-blink 1.2s step-end infinite; }
@media (prefers-reduced-motion: reduce) {
  .hb-capsule--pulse, .hb-capsule--blink { animation: none; }
}

/* ---------- Light/dark sample frames (§13) --------------------
   Force a theme context so both renderings show regardless of page theme. */
.status-frames {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}
@media (max-width: 880px) { .status-frames { grid-template-columns: 1fr; } }
.status-frame {
  border: 1px solid var(--rule);
  border-radius: 12px;
  overflow: hidden;
  font-family: var(--font-body);
}
.status-frame__bar {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 9px 16px;
}
.status-frame__title { font-size: 15px; font-weight: 600; padding: 14px 16px 4px; }
.status-frame__list { padding: 6px 0; }
.status-frame__row { display: flex; align-items: center; gap: 12px; padding: 11px 16px; }
.status-frame__row + .status-frame__row { border-top: 1px solid transparent; }
.status-frame__who { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; }
.status-frame__who b { font-size: 13px; font-weight: 600; }
.status-frame__who small { font-size: 11px; opacity: 0.6; }
.status-frame__grow { flex: 1; }
.status-frame__age { font-family: var(--font-mono); font-size: 11px; opacity: 0.55; }
.status-frame--light { background: #FFFFFF; color: #0A0A0A; color-scheme: light; --bg: #FFFFFF; }
.status-frame--light .status-frame__bar { color: #8A8F94; border-bottom: 1px solid #E0DCD6; }
.status-frame--light .status-frame__row + .status-frame__row { border-color: #ECE8E2; }
.status-frame--dark { background: #141413; color: #ECEAE7; color-scheme: dark; --bg: #141413; }
.status-frame--dark .status-frame__bar { color: #7C7872; border-bottom: 1px solid #2F2C28; }
.status-frame--dark .status-frame__row + .status-frame__row { border-color: #232220; }
.status-frame--light .task-icon-done-check { stroke: #FFFFFF; }
.status-frame--dark .task-icon-done-check { stroke: #141413; }

/* Wide product mockups — scroll horizontally on narrow viewports */
.example.scroll-x {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
}

.trace-log {
  min-width: 640px;
}

.trace-event {
  display: grid;
  grid-template-columns: 84px 16px minmax(180px, 1fr) 120px 132px;
  gap: 16px;
  padding: 12px 24px;
  align-items: center;
  border-top: 1px solid var(--rule);
}

.trace-event > :nth-child(3) {
  white-space: nowrap;
}

.kanban-board {
  display: grid;
  grid-template-columns: repeat(7, minmax(132px, 1fr));
  gap: 10px;
  min-width: 980px;
  font-family: var(--font-body);
}

/* ---------- 10. ANNOTATIONS ---------------------------------- */

.anno {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  margin-top: 12px;
}
.anno code {
  background: var(--surface);
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid var(--rule);
}

.token-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--r-xs);
  padding: 2px 8px;
  color: var(--text-2);
}

/* When annotations are turned off via Tweaks, hide them */
[data-annotations="off"] .anno,
[data-annotations="off"] .token-pill,
[data-annotations="off"] .swatch-token { display: none !important; }

/* ---------- 11. GRIDS / UTILS -------------------------------- */

.grid-1 { display: grid; grid-template-columns: 1fr; gap: var(--space-5); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.card-span-2 { grid-column: span 2; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--space-4); }
.grid-6 { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-3); }

.table-wrap {
  padding: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.table-wrap table { min-width: 520px; }
#typography .table-wrap table { width: 100%; }

@media (max-width: 980px) {
  .table-wrap {
    scrollbar-width: thin;
  }

  .table-wrap table {
    table-layout: fixed;
    width: 100%;
    min-width: 520px;
  }
  .table-wrap th,
  .table-wrap td {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 0;
  }

  /* Type ramp samples are display-sized — let content set scroll width */
  #typography .table-wrap table {
    table-layout: auto;
    width: max-content;
    min-width: 100%;
  }
  #typography .table-wrap th,
  #typography .table-wrap td {
    overflow: visible;
    text-overflow: unset;
    max-width: none;
    white-space: nowrap;
  }

  /* Chips stay single-line; ellipsize inside narrow cells */
  .semantic-pill,
  .task-chip,
  .status-pill {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .task-chip {
    min-width: 0;
    flex-shrink: 1;
  }
}

@media (max-width: 880px) {
  .grid-2, .grid-3, .grid-4, .grid-5, .grid-6 { grid-template-columns: 1fr; }
  .card-span-2 { grid-column: auto; }
  .grid-4:has(> .swatch),
  .grid-4:has(> .example.dense .swatch-name),
  .grid-5:has(> .example.dense .swatch-name),
  .grid-3:has(> .example.dense .swatch-name) { grid-template-columns: 1fr 1fr; }
  .palette-bed-pair { grid-template-columns: 1fr !important; }
}
@media (max-width: 640px) {
  .grid-6 { grid-template-columns: 1fr; }
  .grid-1-mobile { grid-template-columns: 1fr !important; }
  .example [style*="min-width:200px"] { min-width: 0 !important; }
}
@media (max-width: 360px) {
  .grid-2, .grid-3, .grid-4, .grid-5, .grid-6 { grid-template-columns: 1fr; }
}

.stack { display: flex; flex-direction: column; gap: var(--space-4); }
.row { display: flex; gap: var(--space-3); flex-wrap: wrap; align-items: center; }

.hr { height: 1px; background: var(--rule); margin: var(--space-6) 0; border: 0; }

.muted { color: var(--text-muted); }

/* ---------- 12. AGENT CAPSULES ------------------------------- */

.cap-grad-01 { background: linear-gradient(to bottom, var(--agent-1a),  var(--agent-1b)); }
.cap-grad-02 { background: linear-gradient(to bottom, var(--agent-2a),  var(--agent-2b)); }
.cap-grad-03 { background: linear-gradient(to bottom, var(--agent-3a),  var(--agent-3b)); }
.cap-grad-04 { background: linear-gradient(to bottom, var(--agent-4a),  var(--agent-4b)); }
.cap-grad-05 { background: linear-gradient(to bottom, var(--agent-5a),  var(--agent-5b)); }
.cap-grad-06 { background: linear-gradient(to bottom, var(--agent-6a),  var(--agent-6b)); }
.cap-grad-07 { background: linear-gradient(to bottom, var(--agent-7a),  var(--agent-7b)); }
.cap-grad-08 { background: linear-gradient(to bottom, var(--agent-8a),  var(--agent-8b)); }
.cap-grad-09 { background: linear-gradient(to bottom, var(--agent-9a),  var(--agent-9b)); }
.cap-grad-10 { background: linear-gradient(to bottom, var(--agent-10a), var(--agent-10b)); }
.cap-grad-11 { background: linear-gradient(to bottom, var(--agent-11a), var(--agent-11b)); }
.cap-grad-12 { background: linear-gradient(to bottom, var(--agent-12a), var(--agent-12b)); }
.cap-flat-01 { background: var(--agent-1a); }
.cap-flat-02 { background: var(--agent-2a); }
.cap-flat-03 { background: var(--agent-3a); }
.cap-flat-04 { background: var(--agent-4a); }
.cap-flat-05 { background: var(--agent-5a); }
.cap-flat-06 { background: var(--agent-6a); }
.cap-flat-07 { background: var(--agent-7a); }
.cap-flat-08 { background: var(--agent-8a); }
.cap-flat-09 { background: var(--agent-9a); }
.cap-flat-10 { background: var(--agent-10a); }
.cap-flat-11 { background: var(--agent-11a); }
.cap-flat-12 { background: var(--agent-12a); }

/* ---------- 13. COPY BUTTON ---------------------------------- */
.copy-btn {
  border: 1px solid var(--rule);
  background: var(--input-bg);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-2);
  padding: 4px 8px;
  border-radius: var(--r-xs);
  cursor: pointer;
  transition: all var(--dur-short) var(--ease-out);
}
.copy-btn:hover { border-color: var(--text); color: var(--text); }
.copy-btn.copied { color: var(--signal-deep); border-color: var(--signal); background: var(--signal-soft); }
[data-theme="dark"] .copy-btn.copied { color: var(--signal); background: rgba(34,197,94,0.15); }

/* ---------- 14. FOOTER (marketing site component) -------------- */

/* Aliases so shared Footer.astro tokens resolve on the brand page. */
:root,
[data-theme="dark"] {
  --ink-t: var(--text);
  --mono: var(--text-muted);
  --font-serif: var(--font-display);
  --font-sans: var(--font-body);
  --space-sm: var(--space-4);
  --space-md: var(--space-5);
  --t-micro: var(--dur-micro);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

/* ---------- 15. SWATCH PRIMITIVE ----------------------------- */

.swatch {
  border: 1px solid var(--rule);
  border-radius: var(--r-sm);
  overflow: hidden;
  background: var(--bg);
  display: flex;
  flex-direction: column;
}
.swatch-chip { height: 96px; position: relative; }
.swatch-chip::after {
  content: '';
  position: absolute; inset: 0;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.06);
  pointer-events: none;
}
.swatch-meta {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.swatch-name { font-family: var(--font-body); font-weight: 500; font-size: 13px; color: var(--text); }
.swatch-hex  { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }

.status-tints {
  display: flex;
  gap: 4px;
  margin-top: 10px;
}
.status-tint {
  flex: 1;
  min-width: 0;
}
.status-tint-chip {
  display: block;
  height: 14px;
  border-radius: 3px;
}
.status-tint-hex {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.2;
  color: var(--text-muted);
  text-align: center;
}
/* §04 — light/dark chip value rows on the status swatch cards */
.status-tint-mode {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-top: 12px;
}
.chip-hexes {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-top: 6px;
}
.chip-hex {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
}
.chip-hex__sw {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  border: 1px solid var(--rule);
  flex: none;
}
.chip-hex__k {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  width: 42px;
  flex: none;
}
.chip-hex__v {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-2);
  white-space: nowrap;
}
/* dark-recipe panel — render translucent dark values over the true dark bg */
.chip-hexes--dark {
  background: #141413;
  border: 1px solid #2F2C28;
  border-radius: 8px;
  padding: 8px 10px;
}
.chip-hexes--dark .chip-hex__sw { border-color: #2F2C28; }
.chip-hexes--dark .chip-hex__k { color: #6E6960; }
.chip-hexes--dark .chip-hex__v { color: #9A958A; }
.swatch-token{ font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); letter-spacing: 0.04em; margin-top: 2px; }
.swatch-usage{ font-size: 12px; color: var(--text-2); margin-top: 4px; }

/* ---------- 16. TWEAKS PANEL --------------------------------- */
.tweaks-fab {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 100;
  display: none;
}
.tweaks-panel {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 99;
  width: 320px;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 18px;
  font-family: var(--font-body);
  font-size: 13px;
  display: none;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.18);
}
.tweaks-panel.open { display: flex; }
.tweaks-head { display: flex; justify-content: space-between; align-items: center; }
.tweaks-head h6 { font-family: var(--font-display); font-size: 20px; font-weight: 400; margin: 0; }
.tweaks-close {
  border: 0; background: transparent; cursor: pointer; color: var(--text-muted);
  font-family: var(--font-mono); font-size: 14px;
}
.tweaks-close:hover { color: var(--text); }
.tweak-row { display: flex; flex-direction: column; gap: 6px; padding-top: 12px; border-top: 1px solid var(--rule); }
.tweak-row:first-of-type { border-top: 0; padding-top: 0; }
.tweak-label {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  color: var(--text-muted); text-transform: uppercase;
}
.tweak-value { color: var(--text); }
.tweak-segment {
  display: flex;
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  overflow: hidden;
  background: var(--bg);
}
.tweak-segment button {
  flex: 1;
  border: 0;
  background: transparent;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  padding: 7px 10px;
  color: var(--text-2);
  cursor: pointer;
  transition: all var(--dur-short) var(--ease-out);
}
.tweak-segment button.active {
  background: var(--text);
  color: var(--bg);
}
[data-theme="dark"] .tweak-segment button.active { background: var(--manila); color: var(--ink); }
.tweak-swatches { display: flex; gap: 8px; }
.tweak-swatch {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-short) var(--ease-out);
}
.tweak-swatch:hover { transform: scale(1.1); }
.tweak-swatch.active { border-color: var(--text); }
[data-theme="dark"] .tweak-swatch.active { border-color: var(--manila); }

/* ---------- 16b. MOTION DEMOS -------------------------------- */
/* Inline animated track for the easings & durations table. Each row
   carries its own --ease and --dur custom properties; a single .running
   class re-triggers the keyframe. */
.motion-track {
  position: relative;
  width: 96px;
  height: 14px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 9999px;
  overflow: hidden;
  cursor: pointer;
}
.motion-track .motion-dot {
  position: absolute;
  top: 50%;
  left: 2px;
  width: 10px;
  height: 10px;
  margin-top: -5px;
  border-radius: 9999px;
  background: var(--text);
  transform: translateX(0);
}
.motion-track.running .motion-dot {
  animation-name: motion-shuttle;
  animation-duration: var(--dur, 700ms);
  animation-timing-function: var(--ease, cubic-bezier(.2,.8,.2,1));
  animation-iteration-count: 1;
  animation-fill-mode: forwards;
}
@keyframes motion-shuttle {
  0%   { transform: translateX(0); }
  50%  { transform: translateX(72px); }
  100% { transform: translateX(0); }
}

/* ── Imagery: responsive motif demos (#imagery) ── */

.imagery-capsule-field {
  container-type: inline-size;
  container-name: imagery-capsule-field;
  height: 200px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
}

.imagery-capsule-field__track {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  flex-shrink: 0;
  width: 344px; /* 8 × 36px + 7 × 8px gap */
  transform-origin: bottom center;
  transform: scale(min(1, 100cqw / 344px));
}

.imagery-capsule-field__cap {
  width: 36px;
  border-radius: 9999px;
  flex-shrink: 0;
}

.imagery-org-chart {
  container-type: inline-size;
  container-name: imagery-org-chart;
  overflow: hidden;
}

.imagery-org-chart__inner {
  --org-row-gap: clamp(8px, 5cqw, 32px);
  display: grid;
  justify-items: center;
  gap: 40px;
  width: 100%;
  max-width: 424px;
  margin-inline: auto;
}

.imagery-org-chart__ceo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
}

.imagery-org-chart__row {
  display: flex;
  gap: var(--org-row-gap);
  position: relative;
  width: 100%;
}

/* Horizontal connector — sits midway in the grid gap, shortens as the row narrows */
.imagery-org-chart__row::before {
  content: '';
  position: absolute;
  top: -20px;
  left: calc((100% - 2 * var(--org-row-gap)) / 6);
  right: calc((100% - 2 * var(--org-row-gap)) / 6);
  height: 1px;
  background: var(--rule);
}

.imagery-org-chart__node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: 1 1 0;
  min-width: 72px;
  max-width: 120px;
  position: relative;
}

.imagery-org-chart__stem--down {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 20px;
  background: var(--rule);
}

.imagery-org-chart__stem--up {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 20px;
  background: var(--rule);
}

.imagery-org-chart__cap--ceo {
  width: 48px;
  height: 104px;
  border-radius: 9999px;
}

.imagery-org-chart__cap {
  width: 36px;
  height: 80px;
  border-radius: 9999px;
}

.imagery-org-chart__role {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
}

.imagery-org-chart__name {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
}

/* Phase 2: uniform scale once nodes hit their minimum width */
@container imagery-org-chart (max-width: 231px) {
  .imagery-org-chart__inner {
    --org-scale: calc(100cqw / 232px);
    transform: scale(var(--org-scale));
    transform-origin: top center;
    margin-bottom: calc(324px * (var(--org-scale) - 1));
  }
}

/* Agent heartbeat capsules — alive/waiting pulse; blocked hard-blinks (no alpha tweens) */
@keyframes hb-pulse {
  0%, 100% { opacity: 0.4; transform: scale(0.85); }
  50%      { opacity: 1;   transform: scale(1); }
}
@keyframes hb-blink {
  0%, 49.9% { background-color: var(--red); }
  50%, 100% { background-color: var(--bg); }
}

[data-theme="dark"] .motion-track .motion-dot { background: var(--manila); }

/* Blockquote in voice section — lighter color + smaller type, no italics. */
.voice-quote {
  margin: 24px 0 0;
  padding: 0 0 0 24px;
  border-left: 2px solid var(--rule);
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 20px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--text-2);
  font-style: normal;
}

/* ---------- 17. PRINT / MISC --------------------------------- */
@media print {
  .site-header, .toc, .nav-toggle, .nav-backdrop, .tweaks-panel, .tweaks-fab { display: none !important; }
  .layout { display: block; }
  .main { padding: 0; }
  .section { page-break-inside: avoid; }
}

/* Focus rings — only on keyboard nav */
:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 3px;
}

.brand-route ~ .theme-toggle { display: none; }