/* Murph Documentation: same design tokens as desktop app + doc readability layers */

:root {
  /* Murph light theme (desktop app body.light) */
  --bg0: #EAE7DF;
  --bg1: #F1EFEA;
  --bg2: #FBFAF7;
  --bg3: #EAE7DF;
  --line: #D8D3C7;
  --line2: #E3DFD5;
  --t0: #1C1B14;
  --t1: #3A382C;
  --t2: #57543F;
  --t3: #75715C;
  --accent: #232219;
  --accent-soft: rgba(35, 34, 25, 0.08);
  --green: #3F7A2E;
  --green-bg: #E1EFD6;
  --green-bd: #7FB35A;
  --red: #A8412A;
  --red-bg: #F7E2D8;
  --red-bd: #D97C56;
  --amber: #966209;
  --amber-bg: #F6E7C9;
  --amber-bd: #D9A83F;
  --purple: #6C4C93;
  --blue: #4E6E82;
  --zebra: rgba(0, 0, 0, 0.025);
  --overlay: rgba(28, 27, 20, 0.38);
  --shadow: 0 4px 14px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.14);

  --ui: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --mono: ui-monospace, 'Cascadia Code', Consolas, monospace;

  /* Doc layout */
  --sidebar-w: 272px;
  --toc-w: 220px;
  --content-max: 760px;
  --header-h: 42px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--ui);
  background: var(--bg1);
  color: var(--t0);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--t1); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--t0); }

/* ── Header: mirrors app topstrip / brand bar ── */
.doc-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  background: var(--bg0);
  border-bottom: 1px solid var(--line);
}

.doc-header-brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.doc-header-brand strong {
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--t0);
}

.doc-header-brand span {
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--t3);
}

.doc-header-search {
  flex: 1;
  max-width: 340px;
  position: relative;
}

.doc-header-search input {
  width: 100%;
  padding: 6px 10px 6px 30px;
  font-size: 12px;
  font-family: var(--ui);
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--bg1);
  color: var(--t0);
  outline: none;
}

.doc-header-search input::placeholder { color: var(--t3); }

.doc-header-search input:focus {
  border-color: var(--t2);
  background: var(--bg2);
}

.doc-header-search::before {
  content: '⌕';
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--t3);
  font-size: 13px;
  pointer-events: none;
}

.doc-header-links {
  margin-left: auto;
  display: flex;
  gap: 14px;
  font-size: 10px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.doc-header-links a {
  color: var(--t3);
  text-decoration: none;
  font-weight: 500;
}

.doc-header-links a:hover { color: var(--t0); }

/* ── Shell ── */
.doc-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: calc(100vh - var(--header-h));
}

.doc-shell.has-toc {
  grid-template-columns: var(--sidebar-w) 1fr var(--toc-w);
}

/* ── Sidebar: same as app #nav ── */
.doc-sidebar {
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  background: var(--bg0);
  border-right: 1px solid var(--line);
  padding: 12px 0 48px;
}

.doc-sidebar::-webkit-scrollbar { width: 5px; }
.doc-sidebar::-webkit-scrollbar-thumb { background: var(--line2); }

.doc-nav-section { margin-bottom: 2px; }

.doc-nav-section-toggle {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 8px 12px 4px 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--ui);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--t3);
  text-align: left;
}

.doc-nav-section-toggle::before {
  content: '▾';
  margin-right: 5px;
  font-size: 8px;
  transition: transform .15s;
}

.doc-nav-section.collapsed .doc-nav-section-toggle::before { transform: rotate(-90deg); }
.doc-nav-section.collapsed .doc-nav-links { display: none; }

.doc-nav-links a {
  display: block;
  padding: 7px 12px 7px 28px;
  font-size: 12px;
  color: var(--t2);
  text-decoration: none;
  border-left: 2px solid transparent;
  line-height: 1.35;
}

.doc-nav-links a:hover {
  background: var(--accent-soft);
  color: var(--t1);
  text-decoration: none;
}

.doc-nav-links a.active {
  color: var(--t0);
  background: var(--accent-soft);
  border-left-color: var(--t0);
  font-weight: 500;
}

.doc-nav-links a.hidden { display: none; }

.doc-no-results {
  padding: 10px 20px;
  font-size: 11px;
  color: var(--t3);
  display: none;
}

.doc-no-results.visible { display: block; }

/* ── Main ── */
.doc-main-wrap {
  display: flex;
  justify-content: center;
  padding: 28px 36px 80px;
  min-width: 0;
  background: var(--bg1);
}

.doc-main {
  width: 100%;
  max-width: var(--content-max);
}

.doc-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--t3);
  margin-bottom: 18px;
}

.doc-breadcrumb a { color: var(--t3); text-decoration: none; }
.doc-breadcrumb a:hover { color: var(--t1); text-decoration: none; }
.doc-breadcrumb-sep { color: var(--line); }
.doc-breadcrumb-current { color: var(--t2); }

/* Hero */
.doc-hero {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line2);
}

.doc-hero h1 {
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--t0);
  margin-bottom: 12px;
  line-height: 1.2;
}

.doc-hero .lead {
  font-size: 15px;
  color: var(--t2);
  line-height: 1.7;
  max-width: 640px;
}

.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.doc-badge {
  font-size: 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 3px 9px;
  border: 1px solid var(--line2);
  color: var(--t2);
  background: var(--bg2);
}

.doc-badge.accent {
  background: var(--bg2);
  color: var(--green);
  border-color: var(--green-bd);
}

/* Sections */
.doc-section {
  margin-bottom: 56px;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.doc-section[id] {
  padding-top: 36px;
  margin-top: 8px;
}

/* Chapter banner: label + h2 grouped by docs.js */
.doc-chapter-head {
  margin: 0 0 28px;
  padding: 18px 0 16px;
  background: transparent;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.doc-section[id] .doc-chapter-head {
  margin-top: 0;
}

.doc-chapter-head .doc-section-label {
  margin-bottom: 10px;
  color: var(--t3);
  letter-spacing: 1.5px;
}

.doc-chapter-head h2 {
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--t0);
  margin: 0;
  line-height: 1.15;
}

.doc-section-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--t3);
  margin-bottom: 6px;
}

.doc-section h2 {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--t0);
  margin-bottom: 14px;
  line-height: 1.25;
}

.doc-section h3 {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--t2);
  margin: 32px 0 14px;
  padding: 0 0 8px;
  background: none;
  border: none;
  border-bottom: 1px solid var(--line2);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.doc-section h4 {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.1px;
  color: var(--t1);
  margin: 22px 0 8px;
  padding: 0;
  border: none;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.doc-section > p {
  font-size: 14px;
  color: var(--t2);
  margin-bottom: 12px;
  line-height: 1.7;
}

.doc-section > .doc-table-wrap,
.doc-section > .doc-prose,
.doc-section > .doc-callout,
.doc-section > .doc-in-this-section,
.doc-section > .doc-figure,
.doc-section > .mock-caption,
.doc-section > .doc-card-grid,
.doc-section > .doc-flow {
  margin-bottom: 20px;
}

.doc-section > ul,
.doc-section > ol {
  padding-left: 20px;
  margin-bottom: 14px;
  color: var(--t2);
  font-size: 14px;
}

.doc-section > li { margin-bottom: 6px; }

/* Prose panel: readable block, still Murph dark */
.doc-prose {
  background: var(--bg2);
  border: 1px solid var(--line2);
  padding: 16px 20px;
  margin-bottom: 18px;
}

.doc-prose p {
  font-size: 14px;
  color: var(--t2);
  margin-bottom: 10px;
  line-height: 1.7;
}

.doc-prose p:last-child { margin-bottom: 0; }

.doc-prose ul, .doc-prose ol {
  padding-left: 20px;
  color: var(--t2);
  font-size: 14px;
}

.doc-prose li { margin-bottom: 5px; }
.doc-prose strong { color: var(--t0); font-weight: 500; }

/* On this page (in-section) */
.doc-in-this-section {
  background: var(--green-bg);
  border: 1px solid var(--green-bd);
  padding: 14px 18px;
  margin-bottom: 22px;
}

.doc-in-this-section-title {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 8px;
}

.doc-in-this-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
  columns: 2;
  column-gap: 20px;
}

.doc-in-this-section li { margin-bottom: 5px; font-size: 13px; }
.doc-in-this-section a { color: var(--t1); text-decoration: none; font-weight: 500; }
.doc-in-this-section a:hover { color: var(--green); text-decoration: underline; }

/* Callouts: Murph semantic colors */
.doc-callout {
  padding: 12px 16px;
  margin: 18px 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--t2);
  border: 1px solid var(--line2);
  background: var(--bg2);
}

.doc-callout strong { color: var(--t0); font-weight: 500; }

.doc-callout.tip {
  border-color: var(--green-bd);
  background: var(--green-bg);
}

.doc-callout.warn {
  border-color: var(--amber-bd);
  background: var(--amber-bg);
}

.doc-callout.info {
  border-color: var(--line);
  background: var(--bg2);
}

/* Tables: app ztable / doc-table style */
.doc-table-wrap {
  overflow-x: auto;
  margin: 14px 0 22px;
  border: 1px solid var(--line);
  background: var(--bg0);
}

table.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.doc-table th {
  text-align: left;
  padding: 8px 12px;
  background: var(--bg2);
  color: var(--t3);
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: 10px;
  border-bottom: 1px solid var(--line);
}

.doc-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--line2);
  color: var(--t2);
  vertical-align: top;
  line-height: 1.5;
}

.doc-table tr:last-child td { border-bottom: none; }

.doc-table td:first-child {
  color: var(--t0);
  font-weight: 500;
  white-space: nowrap;
}

.doc-table code {
  font-size: 11px;
  background: var(--bg1);
  padding: 2px 5px;
  border: 1px solid var(--line2);
  color: var(--t1);
}

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg0);
  padding: 1px 5px;
  border: 1px solid var(--line2);
  color: var(--t1);
}

/* Flow */
.doc-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 14px 0 22px;
  padding: 12px 16px;
  background: var(--bg2);
  border: 1px solid var(--line2);
  font-size: 12px;
  color: var(--t2);
}

.doc-flow span:not(.doc-flow-arrow) {
  padding: 3px 9px;
  background: var(--bg0);
  border: 1px solid var(--line2);
  color: var(--t1);
  font-size: 11px;
}

.doc-flow-arrow { color: var(--t3); }

/* Card grid */
.doc-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 10px;
  margin: 18px 0 24px;
}

.doc-card {
  background: var(--bg2);
  border: 1px solid var(--line2);
  padding: 14px 16px;
  transition: border-color .12s, background .12s;
}

.doc-card:hover {
  border-color: var(--t3);
  background: #F1EEE6;
}

.doc-card-num {
  font-size: 10px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--t3);
  margin-bottom: 5px;
}

.doc-card h4 {
  font-size: 14px;
  font-weight: 500;
  color: var(--t0);
  margin: 0 0 6px;
  border: none;
  padding: 0;
  letter-spacing: 0;
  text-transform: none;
}

.doc-card p {
  font-size: 12px;
  color: var(--t3);
  margin: 0;
  line-height: 1.45;
}

.doc-card a.doc-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.doc-card a.doc-card-link:hover { text-decoration: none; }

/* ── Figures: UI preview separated from prose (not same flat bg) ── */
.doc-figure {
  margin: 24px 0 28px;
  padding: 14px;
  background: var(--bg3);
  border: 1px solid var(--line);
  outline: 1px solid var(--bg0);
  outline-offset: 4px;
}

.doc-figure-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line2);
}

.doc-figure-label {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--t3);
}

.doc-figure-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--t1);
}

.doc-figure-caption {
  margin-top: 10px;
  font-size: 12px;
  color: var(--t3);
  line-height: 1.5;
  padding-top: 8px;
  border-top: 1px solid var(--line2);
}

.mock-caption { display: none; }

.mock-frame {
  border: 1px solid var(--line);
  background: var(--bg0);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.mock-app {
  display: flex;
  min-height: 280px;
  font-size: 11px;
}

.mock-nav {
  width: 160px;
  flex-shrink: 0;
  background: var(--bg0);
  border-right: 1px solid var(--line2);
  padding: 8px 0;
}

.mock-brand {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 8px 12px 10px;
  border-bottom: 1px solid var(--line2);
  color: var(--t0);
}

.mock-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  color: var(--t2);
  font-size: 11px;
}

.mock-tab.active {
  background: var(--accent-soft);
  color: var(--t0);
  box-shadow: inset 2px 0 0 var(--t0);
}

.mock-tab-num { margin-left: auto; font-size: 9px; color: var(--t3); }

.mock-nav-group-label {
  font-size: 8px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--t3);
  padding: 8px 12px 2px 22px;
}

.mock-main { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.mock-topstrip {
  height: 36px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 10px;
  background: var(--bg2);
  border-bottom: 1px solid var(--line);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--t2);
}

.mock-topstrip .mock-pill {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 9px;
  text-transform: uppercase;
  color: var(--t3);
}

.mock-pill-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
}

.mock-content {
  padding: 14px;
  flex: 1;
  background: var(--bg1);
}

.mock-sh {
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--t3);
  margin-bottom: 8px;
}

.mock-card {
  border: 1px solid var(--line);
  background: var(--bg1);
  padding: 12px;
  margin-bottom: 8px;
}

.mock-btn {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 10px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--t1);
  font-family: var(--ui);
}

.mock-btn.green { border-color: var(--green-bd); color: var(--green); }

.mock-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 8px; }

.mock-model-tabs { display: flex; gap: 0; margin-bottom: 10px; }

.mock-model-tab {
  padding: 5px 12px;
  font-size: 10px;
  letter-spacing: 0.5px;
  border: 1px solid var(--line);
  background: var(--bg0);
  color: var(--t2);
}

.mock-model-tab.active { background: var(--bg2); color: var(--t0); }

.mock-wiz { display: flex; gap: 4px; margin-bottom: 12px; font-size: 10px; }

.mock-wiz-step {
  padding: 4px 10px;
  border: 1px solid var(--line2);
  color: var(--t3);
}

.mock-wiz-step.active {
  border-color: var(--green-bd);
  color: var(--green);
  background: var(--green-bg);
}

.mock-grid-2 { display: grid; grid-template-columns: 1fr 200px; gap: 10px; }

.mock-dropzone {
  border: 1px dashed var(--line2);
  padding: 16px;
  text-align: center;
  color: var(--t3);
  font-size: 10px;
  margin-bottom: 8px;
}

.mock-regime {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid var(--green-bd);
}

.mock-kbd {
  display: inline-block;
  padding: 2px 7px;
  font-size: 11px;
  font-family: var(--ui);
  border: 1px solid var(--line);
  background: var(--bg2);
  color: var(--t1);
}

/* Pager */
.doc-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line2);
}

.doc-pager a {
  display: block;
  padding: 12px 16px;
  border: 1px solid var(--line2);
  background: var(--bg2);
  text-decoration: none;
}

.doc-pager a:hover { border-color: var(--line); background: var(--bg3); }

.doc-pager-label {
  font-size: 10px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--t3);
  margin-bottom: 4px;
}

.doc-pager-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--t0);
}

.doc-pager .next { text-align: right; }

.doc-footer {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--line2);
  font-size: 11px;
  color: var(--t3);
  letter-spacing: 0.3px;
}

.doc-footer a { color: var(--t2); }

/* Right TOC */
.doc-toc {
  position: sticky;
  top: calc(var(--header-h) + 20px);
  height: fit-content;
  max-height: calc(100vh - var(--header-h) - 40px);
  overflow-y: auto;
  padding: 24px 16px 40px 0;
  border-left: 1px solid var(--line2);
  background: var(--bg0);
}

.doc-toc-title {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--t3);
  margin-bottom: 10px;
  padding-left: 12px;
}

.doc-toc ul { list-style: none; padding: 0; margin: 0; }

.doc-toc li { margin-bottom: 1px; }

.doc-toc a {
  display: block;
  padding: 5px 0 5px 12px;
  font-size: 11px;
  color: var(--t3);
  text-decoration: none;
  border-left: 2px solid transparent;
  line-height: 1.35;
}

.doc-toc a:hover { color: var(--t1); }

.doc-toc a.active {
  color: var(--t0);
  border-left-color: var(--t0);
  font-weight: 500;
}

.doc-toc a.sub { padding-left: 22px; font-size: 10px; }

@media (max-width: 1200px) {
  .doc-shell.has-toc { grid-template-columns: var(--sidebar-w) 1fr; }
  .doc-toc { display: none; }
}

@media (max-width: 860px) {
  .doc-shell { grid-template-columns: 1fr; }
  .doc-sidebar {
    position: relative;
    top: 0;
    height: auto;
    max-height: 260px;
  }
  .doc-main-wrap { padding: 20px 16px 56px; }
  .doc-chapter-head { padding: 14px 0 12px; }
  .doc-chapter-head h2 { font-size: 22px; }
  .doc-section h3 { margin-top: 26px; font-size: 10px; }
  .doc-hero h1 { font-size: 24px; }
  .doc-in-this-section ul { columns: 1; }
  .doc-header-search { display: none; }
  .mock-grid-2 { grid-template-columns: 1fr; }
  .mock-nav { width: 120px; }
}