/* Kupinga — Developer Documentation stylesheet.
 *
 * Palette anchored to the Kupinga brand pack:
 *   Ink              #0E1116
 *   Enterprise Blue  #0057FF
 *   Bone             #F5F2EA
 *   Slate            #6B7280
 *
 * Typography: Poppins for headings, Inter for body, JetBrains Mono for code.
 * The page is built as a three-column shell (TOC · content · on-this-page)
 * with a sticky top bar that hosts breadcrumb, search, and theme toggle.
 */

/* ============================ THEME TOKENS ============================ */
:root {
  --ink:        #0E1116;
  --ink-2:      #1C2026;
  --ink-3:      #2A2F37;
  --blue:       #0057FF;
  --blue-2:     #0044CC;
  --blue-tint:  #E6EFFF;
  --bone:       #F5F2EA;
  --bone-2:     #EEE9DD;
  --slate:      #6B7280;
  --slate-2:    #9CA3AF;
  --paper:      #FFFFFF;
  --paper-2:    #FAFAF7;
  --border:     #E5E3DC;
  --border-strong: #D4D1C7;
  --success:    #15803D;
  --warning:    #B45309;
  --danger:     #B91C1C;
  --pink:       #BE185D;
  --amber:      #B45309;
  --teal:       #0F766E;
  --purple:     #6D28D9;

  --shadow-sm: 0 1px 2px rgba(14,17,22,0.04);
  --shadow:    0 1px 2px rgba(14,17,22,0.04), 0 8px 24px rgba(14,17,22,0.06);
  --shadow-lg: 0 4px 12px rgba(14,17,22,0.08), 0 24px 48px rgba(14,17,22,0.10);

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 14px;

  --max-content: 880px;
  --sidebar-w:   300px;
  --rail-w:      240px;
  --topbar-h:    60px;
}

[data-theme="dark"] {
  --ink:        #F5F2EA;
  --ink-2:      #E4E0D2;
  --ink-3:      #C8C4B5;
  --blue:       #4F86FF;
  --blue-2:     #76A2FF;
  --blue-tint:  rgba(79,134,255,0.16);
  --bone:       #0E1116;
  --bone-2:     #14181F;
  --slate:      #9CA3AF;
  --slate-2:    #6B7280;
  --paper:      #181C24;
  --paper-2:    #14181F;
  --border:     #262B33;
  --border-strong: #353B45;
  --success:    #4ADE80;
  --warning:    #FBBF24;
  --danger:     #F87171;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow:    0 1px 2px rgba(0,0,0,0.4), 0 8px 24px rgba(0,0,0,0.5);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.5), 0 24px 48px rgba(0,0,0,0.6);
}

/* ============================ RESET / BASE ============================ */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bone);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background 120ms ease, color 120ms ease;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre, .mono, kbd {
  font-family: 'JetBrains Mono', 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}
:not(pre) > code {
  background: var(--bone-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--ink-2);
  font-size: 0.86em;
}
kbd {
  display: inline-block;
  background: var(--paper);
  color: var(--ink-2);
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1;
}

/* ============================ LAYOUT SHELL ============================ */
.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--rail-w);
  min-height: 100vh;
  gap: 0;
}

/* ---- Top bar (sticky across all columns) ---- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  height: var(--topbar-h);
  padding: 0 28px;
  background: color-mix(in srgb, var(--bone) 92%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  grid-column: 1 / -1;
}
.topbar-brand {
  display: flex; align-items: center; gap: 10px;
  margin-right: 24px; min-width: calc(var(--sidebar-w) - 28px);
}
.topbar-brand img { width: 26px; height: 26px; }
.topbar-brand .product {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.topbar-brand .product .accent { color: var(--blue); }
.topbar-brand .label {
  font-size: 10px; color: var(--slate);
  letter-spacing: 0.08em; text-transform: uppercase;
  margin-left: 8px;
  padding: 2px 7px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--paper-2);
}

.topbar-search {
  flex: 1;
  max-width: 520px;
  position: relative;
}
.topbar-search button {
  width: 100%;
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 13.5px;
  color: var(--slate);
  cursor: pointer;
  transition: border-color 120ms ease, background 120ms ease;
  font-family: inherit;
}
.topbar-search button:hover {
  border-color: var(--border-strong);
  background: var(--paper-2);
}
.topbar-search .search-icon {
  width: 14px; height: 14px;
  flex-shrink: 0; opacity: 0.7;
}
.topbar-search .search-placeholder { flex: 1; text-align: left; }
.topbar-search .kbd-hint {
  display: flex; gap: 3px;
}
.topbar-search kbd { font-size: 10.5px; padding: 1px 5px; }

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 16px;
}
.topbar-actions a, .topbar-actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  padding: 0 12px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  cursor: pointer;
  font-family: inherit;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
  text-decoration: none;
}
.topbar-actions a:hover, .topbar-actions button:hover {
  background: var(--paper);
  border-color: var(--border);
  text-decoration: none;
}
.topbar-actions a.cta {
  background: var(--ink);
  color: var(--bone);
  border-color: var(--ink);
  font-weight: 600;
}
.topbar-actions a.cta:hover {
  background: var(--blue);
  border-color: var(--blue);
}
.topbar-actions svg { width: 16px; height: 16px; }

.mobile-menu {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 36px; height: 36px;
  align-items: center; justify-content: center;
  cursor: pointer; color: var(--ink-2);
  margin-right: 10px;
}

/* ============================ SIDEBAR (LEFT TOC) ============================ */
.toc {
  position: sticky;
  top: var(--topbar-h);
  align-self: start;
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  background: var(--bone);
  border-right: 1px solid var(--border);
  padding: 24px 0 40px;
}
.toc::-webkit-scrollbar { width: 8px; }
.toc::-webkit-scrollbar-track { background: transparent; }
.toc::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.toc::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }

.toc nav { padding: 0 14px; }

.toc-section { margin-bottom: 4px; }
.toc-section > .toc-section-label {
  display: flex; align-items: center; justify-content: space-between;
  font-family: 'Poppins', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
  padding: 12px 12px 6px;
  cursor: pointer;
  user-select: none;
}
.toc-section > .toc-section-label::before {
  content: '';
  display: inline-block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--blue);
  margin-right: 8px;
  flex-shrink: 0;
}
.toc-section > .toc-section-label .chevron {
  width: 11px; height: 11px;
  opacity: 0.55;
  transition: transform 160ms ease;
}
.toc-section.collapsed > .toc-section-label .chevron {
  transform: rotate(-90deg);
}
.toc-section .toc-children {
  display: block;
  overflow: hidden;
  transition: max-height 200ms ease;
}
.toc-section.collapsed .toc-children {
  display: none;
}
.toc-section a {
  display: flex; align-items: center;
  padding: 5px 12px 5px 24px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.45;
  position: relative;
}
.toc-section a:hover {
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
}
.toc-section a.active {
  background: var(--blue-tint);
  color: var(--blue);
  font-weight: 600;
}
.toc-section a.active::before {
  content: '';
  position: absolute;
  left: 12px; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 16px;
  border-radius: 2px;
  background: var(--blue);
}

/* ============================ CONTENT ============================ */
.content {
  padding: 48px 56px 120px;
  max-width: var(--max-content);
  margin: 0 auto;
  width: 100%;
  min-width: 0;
}

.content section {
  scroll-margin-top: calc(var(--topbar-h) + 16px);
  padding-top: 32px;
}
.content section:first-of-type { padding-top: 0; }

/* Typography */
.content h1, .content h2, .content h3, .content h4, .content h5 {
  font-family: 'Poppins', 'Inter', sans-serif;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.015em;
  scroll-margin-top: calc(var(--topbar-h) + 16px);
}
.content h1 {
  font-size: 38px;
  line-height: 1.12;
  margin: 0 0 12px;
}
.content h2 {
  font-size: 28px;
  line-height: 1.2;
  margin: 56px 0 8px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.content section > h2:first-child {
  padding-top: 0; border-top: 0; margin-top: 0;
}
.content h3 {
  font-size: 19px;
  line-height: 1.3;
  margin: 36px 0 8px;
}
.content h4 {
  font-size: 15.5px;
  line-height: 1.35;
  margin: 24px 0 6px;
  font-weight: 600;
}
.content h2 .anchor, .content h3 .anchor, .content h4 .anchor {
  margin-left: 8px;
  font-weight: 400;
  color: var(--slate-2);
  opacity: 0;
  transition: opacity 120ms ease;
  text-decoration: none;
}
.content h2:hover .anchor, .content h3:hover .anchor, .content h4:hover .anchor {
  opacity: 1;
}

.content p { margin: 0 0 14px; }
.content ul, .content ol { margin: 0 0 16px; padding-left: 22px; }
.content li { margin-bottom: 6px; }
.content li > p { margin-bottom: 6px; }

.content hr {
  border: 0;
  height: 1px;
  background: var(--border);
  margin: 48px 0;
}

.subtitle {
  font-size: 15px;
  color: var(--slate);
  margin: 0 0 28px;
  font-weight: 500;
}

/* ============================ HERO ============================ */
.hero {
  margin: -8px -8px 32px;
  padding: 56px 48px 48px;
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-2) 100%);
  border-radius: var(--radius-lg);
  color: var(--bone);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.hero::before {
  content: '';
  position: absolute;
  right: -80px; top: -80px;
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(0,87,255,0.25) 0%, transparent 60%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  left: -60px; bottom: -120px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(190,24,93,0.16) 0%, transparent 60%);
  pointer-events: none;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(245,242,234,0.7);
  margin-bottom: 18px;
  padding: 4px 10px;
  border: 1px solid rgba(245,242,234,0.18);
  border-radius: 999px;
  background: rgba(245,242,234,0.04);
}
.hero h1 {
  font-family: 'Poppins', sans-serif;
  font-size: 44px;
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 600;
  color: var(--bone);
  margin: 0 0 14px;
  max-width: 700px;
}
.hero h1 .accent { color: var(--blue); }
.hero .lede {
  font-size: 17px;
  color: rgba(245,242,234,0.78);
  max-width: 640px;
  margin: 0 0 32px;
  line-height: 1.6;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-actions a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-size: 14px; font-weight: 600;
  background: var(--blue);
  color: white;
  border: 1px solid var(--blue);
  transition: background 120ms ease;
}
.hero-actions a:hover { background: var(--blue-2); text-decoration: none; }
.hero-actions a.secondary {
  background: transparent;
  border-color: rgba(245,242,234,0.25);
  color: var(--bone);
}
.hero-actions a.secondary:hover {
  background: rgba(245,242,234,0.08);
}
.hero-meta {
  display: flex; gap: 28px; flex-wrap: wrap;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid rgba(245,242,234,0.14);
  position: relative;
}
.hero-meta > div {
  display: flex; flex-direction: column; gap: 2px;
}
.hero-meta dt {
  font-size: 10.5px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(245,242,234,0.55);
}
.hero-meta dd {
  margin: 0; font-size: 13.5px; color: var(--bone); font-weight: 500;
}

/* ============================ ENDPOINT CARDS ============================ */
.endpoint {
  display: flex; align-items: center; gap: 12px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin: 6px 0 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
}
.endpoint .method {
  font-weight: 700;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  text-transform: uppercase;
  font-family: 'Inter', sans-serif;
}
.endpoint .method.get    { background: rgba(21,128,61,0.12);  color: var(--success); }
.endpoint .method.post   { background: var(--blue-tint);       color: var(--blue);     }
.endpoint .method.put    { background: rgba(180,83,9,0.12);    color: var(--amber);   }
.endpoint .method.patch  { background: rgba(180,83,9,0.12);    color: var(--amber);   }
.endpoint .method.delete { background: rgba(185,28,28,0.10);   color: var(--danger);  }
.endpoint .path { color: var(--ink); font-weight: 500; flex: 1; }
.endpoint .scope {
  font-family: 'Inter', sans-serif;
  font-size: 11.5px;
  color: var(--slate);
  padding: 2px 8px;
  background: var(--bone-2);
  border-radius: 999px;
  border: 1px solid var(--border);
}

.endpoint-group {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 12px 0 20px;
  overflow: hidden;
}
.endpoint-group .endpoint {
  border: 0;
  border-radius: 0;
  border-bottom: 1px solid var(--border);
  margin: 0;
  background: transparent;
}
.endpoint-group .endpoint:last-child { border-bottom: 0; }

/* ============================ CODE BLOCKS ============================ */
.codeblock {
  background: var(--ink);
  border-radius: var(--radius);
  margin: 14px 0 18px;
  overflow: hidden;
  border: 1px solid var(--ink-3);
  box-shadow: var(--shadow-sm);
}
.codeblock-header {
  display: flex;
  align-items: center;
  background: var(--ink-2);
  border-bottom: 1px solid var(--ink-3);
  padding: 0 8px 0 14px;
  height: 38px;
  gap: 6px;
}
.codeblock-header .lang {
  font-family: 'Inter', sans-serif;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(245,242,234,0.55);
}
.codeblock-tabs {
  display: flex; flex: 1; gap: 2px;
}
.codeblock-tabs button {
  padding: 6px 12px;
  background: transparent;
  color: rgba(245,242,234,0.55);
  border: 0;
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease;
}
.codeblock-tabs button:hover { color: var(--bone); }
.codeblock-tabs button.active {
  background: var(--ink-3);
  color: var(--bone);
}
.codeblock-copy {
  background: transparent;
  border: 1px solid rgba(245,242,234,0.18);
  color: rgba(245,242,234,0.65);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  font-family: 'Inter', sans-serif;
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 5px;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}
.codeblock-copy:hover {
  background: rgba(245,242,234,0.06);
  color: var(--bone);
  border-color: rgba(245,242,234,0.3);
}
.codeblock-copy svg { width: 12px; height: 12px; }
.codeblock-copy.copied { color: var(--success); border-color: var(--success); }

.codeblock pre {
  margin: 0;
  padding: 18px 20px;
  color: #E4E0D2;
  font-size: 13px;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
}
.codeblock pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
  font-size: inherit;
}
.codeblock pre::-webkit-scrollbar { height: 8px; }
.codeblock pre::-webkit-scrollbar-track { background: var(--ink-2); }
.codeblock pre::-webkit-scrollbar-thumb { background: var(--ink-3); border-radius: 4px; }

/* Token colouring — minimal hand-rolled */
.tok-comment { color: #6B7280; font-style: italic; }
.tok-string  { color: #FCD34D; }
.tok-key     { color: #93C5FD; }
.tok-num     { color: #C4B5FD; }
.tok-kw      { color: #F472B6; }
.tok-fn      { color: #67E8F9; }
.tok-bool    { color: #FCA5A5; }
.tok-flag    { color: #A7F3D0; }

/* ============================ TABLES ============================ */
.table-wrap {
  overflow-x: auto;
  margin: 8px 0 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--paper);
}
.content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13.5px;
}
.content thead th {
  background: var(--bone-2);
  font-weight: 600;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.content tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  color: var(--ink-2);
}
.content tbody tr:last-child td { border-bottom: 0; }
.content tbody tr:hover td { background: color-mix(in srgb, var(--bone-2) 50%, transparent); }
.content td code { white-space: nowrap; }
.content td.name { font-family: 'JetBrains Mono', monospace; font-size: 12.5px; color: var(--ink); white-space: nowrap; }
.content td.type { font-size: 12px; color: var(--slate); white-space: nowrap; }

/* ============================ CALLOUTS ============================ */
.callout {
  border-left: 4px solid;
  background: var(--paper);
  padding: 14px 18px;
  margin: 18px 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 14px;
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.callout > strong:first-child {
  display: block;
  margin-bottom: 6px;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
}
.callout.note     { border-left-color: var(--blue);    }
.callout.note > strong:first-child { color: var(--blue); }
.callout.warn     { border-left-color: var(--warning); background: color-mix(in srgb, #fff8eb 75%, var(--paper)); }
.callout.warn > strong:first-child { color: var(--warning); }
.callout.danger   { border-left-color: var(--danger);  background: color-mix(in srgb, #fef2f2 75%, var(--paper)); }
.callout.danger > strong:first-child { color: var(--danger); }
.callout.tip      { border-left-color: var(--success); background: color-mix(in srgb, #f0fdf4 75%, var(--paper)); }
.callout.tip > strong:first-child { color: var(--success); }
[data-theme="dark"] .callout.warn   { background: color-mix(in srgb, #3d2b08 50%, var(--paper)); }
[data-theme="dark"] .callout.danger { background: color-mix(in srgb, #3d0e0e 50%, var(--paper)); }
[data-theme="dark"] .callout.tip    { background: color-mix(in srgb, #0e2b1c 50%, var(--paper)); }

/* ============================ BADGES ============================ */
.badge {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 11px; font-weight: 600; letter-spacing: 0.04em;
  background: var(--bone-2);
  color: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 9px;
  margin: 0 4px 2px 0;
  vertical-align: middle;
}
.badge.blue    { background: var(--blue-tint); color: var(--blue);     border-color: transparent; }
.badge.success { background: rgba(21,128,61,0.10);  color: var(--success); border-color: transparent; }
.badge.warn    { background: rgba(180,83,9,0.10);   color: var(--warning); border-color: transparent; }
.badge.danger  { background: rgba(185,28,28,0.10);  color: var(--danger);  border-color: transparent; }
.badge.ink     { background: var(--ink); color: var(--bone); border-color: transparent; }
.badge.mono    { font-family: 'JetBrains Mono', monospace; font-size: 10.5px; }

.scope-pill {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: var(--blue-tint);
  color: var(--blue);
  border: 1px solid color-mix(in srgb, var(--blue) 20%, transparent);
  margin-right: 4px;
}

/* ============================ CARDS / GRIDS ============================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin: 16px 0 24px;
}
.card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
  display: block;
  color: inherit;
}
.card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
}
.card h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  color: var(--ink);
}
.card .step {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--blue);
  background: var(--blue-tint);
  padding: 2px 7px;
  border-radius: 4px;
  margin-bottom: 8px;
}
.card p {
  margin: 0;
  font-size: 13px;
  color: var(--slate);
  line-height: 1.55;
}

.outcome-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 14px 0 24px;
}
.outcome-card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  position: relative;
  overflow: hidden;
}
.outcome-card::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px;
}
.outcome-card.approve::before   { background: var(--success); }
.outcome-card.review::before    { background: var(--slate);   }
.outcome-card.challenge::before { background: var(--warning); }
.outcome-card.decline::before   { background: var(--danger);  }
.outcome-card h4 {
  margin: 0 0 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.outcome-card.approve h4   { color: var(--success); }
.outcome-card.review h4    { color: var(--slate);   }
.outcome-card.challenge h4 { color: var(--warning); }
.outcome-card.decline h4   { color: var(--danger);  }
.outcome-card .band {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  color: var(--ink-2);
  font-weight: 500;
}
.outcome-card p {
  margin: 6px 0 0;
  font-size: 12.5px;
  color: var(--slate);
  line-height: 1.5;
}

/* ============================ PAGE NAV (Prev/Next) ============================ */
.pagenav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 64px 0 0;
  border-top: 1px solid var(--border);
  padding-top: 28px;
}
.pagenav a {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  display: block;
  transition: border-color 120ms ease, transform 160ms ease;
  color: var(--ink);
}
.pagenav a:hover {
  border-color: var(--blue);
  text-decoration: none;
  transform: translateY(-1px);
}
.pagenav a .label {
  display: block;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 4px;
}
.pagenav a .title {
  font-family: 'Poppins', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}
.pagenav a.prev .title::before { content: '←  '; color: var(--blue); }
.pagenav a.next { text-align: right; }
.pagenav a.next .title::after  { content: '  →'; color: var(--blue); }

/* ============================ ON-THIS-PAGE RAIL (RIGHT) ============================ */
.rail {
  position: sticky;
  top: var(--topbar-h);
  align-self: start;
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  padding: 48px 24px 40px;
  border-left: 1px solid var(--border);
  background: var(--bone);
}
.rail::-webkit-scrollbar { width: 6px; }
.rail::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.rail-label {
  font-family: 'Poppins', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 10px;
}
.rail nav {
  border-left: 1px solid var(--border);
  padding-left: 12px;
}
.rail a {
  display: block;
  font-size: 12.5px;
  color: var(--slate);
  padding: 4px 0;
  line-height: 1.4;
  position: relative;
  margin-left: -13px;
  padding-left: 13px;
  transition: color 120ms ease;
}
.rail a.h3 { padding-left: 25px; font-size: 12px; }
.rail a:hover { color: var(--ink); text-decoration: none; }
.rail a.active { color: var(--blue); font-weight: 600; }
.rail a.active::before {
  content: '';
  position: absolute;
  left: 0; top: 6px;
  width: 1px; height: calc(100% - 12px);
  background: var(--blue);
}

/* ============================ SEARCH MODAL ============================ */
.search-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(14,17,22,0.55);
  backdrop-filter: blur(4px);
  padding: 80px 16px 16px;
  align-items: flex-start;
  justify-content: center;
}
.search-modal.open { display: flex; }
.search-modal-inner {
  width: 100%;
  max-width: 620px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
}
.search-input-wrap {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}
.search-input-wrap svg { width: 18px; height: 18px; color: var(--slate); flex-shrink: 0; }
.search-input-wrap input {
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  font-family: inherit;
  font-size: 16px;
  color: var(--ink);
}
.search-input-wrap input::placeholder { color: var(--slate-2); }
.search-input-wrap .esc-hint {
  font-size: 11px; color: var(--slate);
  padding: 3px 7px; border: 1px solid var(--border);
  border-radius: 4px; flex-shrink: 0;
  background: var(--bone-2);
}
.search-results { overflow-y: auto; padding: 8px 0; flex: 1; }
.search-results .empty {
  padding: 32px 18px;
  font-size: 13px;
  color: var(--slate);
  text-align: center;
}
.search-result {
  display: block;
  padding: 10px 18px;
  border-left: 3px solid transparent;
  cursor: pointer;
  color: var(--ink-2);
}
.search-result:hover, .search-result.selected {
  background: var(--bone);
  border-left-color: var(--blue);
  text-decoration: none;
}
.search-result .crumb {
  font-size: 11px;
  color: var(--slate);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 2px;
}
.search-result .title {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 2px;
}
.search-result .title mark { background: var(--blue-tint); color: var(--blue); padding: 0 2px; border-radius: 2px; }
.search-result .snippet {
  font-size: 12.5px;
  color: var(--slate);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.search-result .snippet mark { background: var(--blue-tint); color: var(--blue); padding: 0 2px; border-radius: 2px; }
.search-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 18px;
  border-top: 1px solid var(--border);
  font-size: 11.5px;
  color: var(--slate);
  background: var(--bone-2);
}
.search-footer .keys { display: flex; gap: 14px; }
.search-footer .keys span { display: inline-flex; align-items: center; gap: 4px; }

/* ============================ FOOTER ============================ */
.docs-footer {
  margin-top: 96px;
  padding: 40px 32px;
  background: var(--ink);
  color: rgba(245,242,234,0.65);
  border-radius: var(--radius-lg);
  text-align: center;
}
.docs-footer img { width: 120px; height: auto; opacity: 0.9; margin-bottom: 14px; }
.docs-footer p { margin: 4px 0; font-size: 13px; }
.docs-footer a { color: rgba(245,242,234,0.85); }

/* ============================ RESPONSIVE ============================ */
@media (max-width: 1180px) {
  :root { --rail-w: 0px; }
  .shell { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .rail { display: none; }
}
@media (max-width: 880px) {
  .shell { grid-template-columns: 1fr; }
  .toc {
    position: fixed; top: var(--topbar-h); left: 0;
    height: calc(100vh - var(--topbar-h));
    width: 280px; z-index: 40;
    transform: translateX(-100%);
    transition: transform 200ms ease;
    box-shadow: var(--shadow-lg);
    border-right: 1px solid var(--border);
  }
  .toc.open { transform: translateX(0); }
  .content { padding: 32px 20px 80px; }
  .topbar { padding: 0 16px; }
  .topbar-brand { min-width: auto; margin-right: 8px; }
  .topbar-brand .label { display: none; }
  .topbar-search { max-width: none; }
  .topbar-search .kbd-hint { display: none; }
  .topbar-actions a:not(.cta) { display: none; }
  .mobile-menu { display: inline-flex; }
  .hero { padding: 36px 24px; margin: -8px -8px 24px; }
  .hero h1 { font-size: 30px; }
  .hero .lede { font-size: 15px; }
  .pagenav { grid-template-columns: 1fr; }
  .pagenav a.next { text-align: left; }
}

@media print {
  .topbar, .toc, .rail, .pagenav, .docs-footer, .mobile-menu, .search-modal { display: none !important; }
  .shell { display: block; }
  .content { padding: 0; max-width: 100%; background: #fff; }
  body { background: #fff; font-size: 11pt; }
  .hero { background: #fff; color: #000; box-shadow: none; padding: 20px 0; }
  .hero h1 { color: #000; }
  .hero .lede { color: #333; }
  .codeblock { background: #fafafa; border: 1px solid #ddd; }
  .codeblock pre { color: #000; }
  .codeblock-header { background: #f0f0f0; border-color: #ddd; }
  .callout { background: #fafafa !important; }
}