/* ════════════════════════════════════════════════════════════════
   POLYCLAW DOCS — Monochrome Gold & Black
   Matches the Polyclaw web app design system
   ════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black:        #0D1117;
  --surface:      #131920;
  --surface-alt:  #161D26;
  --border:       #30363D;
  --gold:         #D29922;
  --gold-dim:     #B8860B;
  --gold-bright:  #E8C244;
  --gold-muted:   rgba(210, 153, 34, 0.12);
  --gold-hover:   rgba(210, 153, 34, 0.20);
  --gold-glow:    rgba(210, 153, 34, 0.06);
  --blue:         #58A6FF;
  --blue-dim:     #388BFD;
  --blue-muted:   rgba(88, 166, 255, 0.10);
  --text:         #E6EDF3;
  --text-2:       #8B949E;
  --text-3:       #484F58;
  --ok:           #3FB950;
  --ok-bg:        rgba(63, 185, 80, 0.10);
  --err:          #F85149;
  --err-bg:       rgba(248, 81, 73, 0.10);
  --radius:       6px;
  --radius-sm:    3px;
  --radius-lg:    10px;
  --radius-xl:    16px;
  --shadow:       0 1px 4px rgba(0,0,0,.8);
  --shadow-lg:    0 8px 32px rgba(0,0,0,.9);
  --font:         'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono:    'JetBrains Mono', 'SF Mono', 'Fira Code', Consolas, monospace;
  --topbar-h:     56px;
  --sidebar-w:    280px;
  --transition:   120ms ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background: var(--black);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--gold-bright); }

::selection { background: var(--gold-muted); color: var(--text); }

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── Top Bar ── (see enhanced version at bottom) */

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.topbar__brand:hover { color: var(--gold); }

.topbar__brand svg {
  width: 28px;
  height: 28px;
  fill: var(--gold);
}

.topbar__logo {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
}

.topbar__spacer {
  flex: 1;
}

.topbar__version {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.topbar__github {
  display: flex;
  align-items: center;
  color: var(--text-2);
  transition: color var(--transition);
}

.topbar__github:hover { color: var(--text); }

.topbar__github svg { width: 22px; height: 22px; fill: currentColor; }

.topbar__toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-2);
  cursor: pointer;
  padding: 4px;
}

.topbar__toggle svg { width: 24px; height: 24px; fill: currentColor; }

/* ── Layout ── */
.layout {
  display: flex;
  margin-top: var(--topbar-h);
  min-height: calc(100vh - var(--topbar-h));
}

/* ── Sidebar ── (see enhanced version at bottom) */

.sidebar__section {
  padding: 0 16px;
  margin-bottom: 24px;
}

.sidebar__heading {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-3);
  padding: 0 12px;
  margin-bottom: 8px;
}

.sidebar__link {
  display: block;
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--text-2);
  transition: all var(--transition);
  border-left: 2px solid transparent;
}

.sidebar__link:hover {
  color: var(--text);
  background: var(--gold-glow);
}

.sidebar__link--active {
  color: var(--gold);
  background: var(--gold-muted);
  border-left-color: var(--gold);
  font-weight: 500;
}

.sidebar__link--child {
  padding-left: 28px;
  font-size: 12.5px;
}

/* ── Main Content ── */
.content {
  flex: 1;
  margin-left: var(--sidebar-w);
  padding: 40px 48px 80px;
  max-width: 900px;
  min-width: 0;
}

.content--wide {
  max-width: 1100px;
}

/* ── Prose ── */
.prose h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.2;
}

.prose h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text);
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.prose h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-top: 32px;
  margin-bottom: 12px;
}

.prose h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-2);
  margin-top: 24px;
  margin-bottom: 8px;
}

.prose p {
  margin-bottom: 16px;
  color: var(--text);
}

.prose .lead {
  font-size: 18px;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 32px;
}

.prose ul, .prose ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.prose li {
  margin-bottom: 6px;
  color: var(--text);
}

.prose li::marker {
  color: var(--gold-dim);
}

.prose strong { color: var(--text); font-weight: 600; }

.prose code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--surface-alt);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--gold-bright);
  border: 1px solid var(--border);
}

.prose pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 20px;
  overflow-x: auto;
  line-height: 1.5;
}

.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 13px;
  color: var(--text);
}

.prose blockquote {
  border-left: 3px solid var(--gold);
  background: var(--gold-glow);
  padding: 12px 20px;
  margin-bottom: 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text-2);
}

.prose blockquote p { margin-bottom: 0; color: var(--text-2); }

.prose table {
  width: 100%;
  margin-bottom: 20px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.prose th {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 2px solid var(--border);
  font-weight: 600;
  color: var(--text);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.prose td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.prose tr:hover td { background: var(--gold-glow); }

.prose img {
  max-width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin: 24px 0;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

/* ── Callouts ── */
.callout {
  padding: 16px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 20px;
  border-left: 3px solid;
  font-size: 14px;
}

.callout p { margin-bottom: 0; }

.callout--info {
  background: var(--blue-muted);
  border-left-color: var(--blue);
  color: var(--text);
}

.callout--warning {
  background: var(--gold-muted);
  border-left-color: var(--gold);
  color: var(--text);
}

.callout--danger {
  background: var(--err-bg);
  border-left-color: var(--err);
  color: var(--text);
}

.callout--success {
  background: var(--ok-bg);
  border-left-color: var(--ok);
  color: var(--text);
}

.callout__title {
  font-weight: 600;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── Hero (Home page - see enhanced version at bottom for ::before) ── */
.hero {
  text-align: center;
  padding: 80px 0 60px;
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.hero__icon {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.hero__icon svg {
  width: 64px;
  height: 64px;
}

.hero__logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius);
}

.hero__title {
  font-size: 48px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.1;
}

.hero__title span { color: var(--gold); }

.hero__subtitle {
  font-size: 20px;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 40px;
}

span.em-dash {
  display: inline-block;
  background: linear-gradient(90deg, transparent, #D29922 20%, #D29922 80%, transparent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 300;
  margin: 0 0.1em;
  letter-spacing: -0.05em;
}

.hero__actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  text-decoration: none;
}

.btn--primary {
  background: var(--gold);
  color: #000;
  border-color: var(--gold);
}

.btn--primary:hover {
  background: var(--gold-bright);
  color: #000;
  box-shadow: 0 0 20px var(--gold-muted);
}

.btn--secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.btn--secondary:hover {
  border-color: var(--gold-dim);
  background: var(--surface-alt);
  color: var(--text);
}

/* ── Feature Cards (see enhanced version at bottom) ── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin: 40px 0;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  border-color: var(--gold-dim);
  background: var(--surface-alt);
}

.feature-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 12px;
  background: var(--gold-muted);
  border-radius: var(--radius);
}

.feature-card__icon svg {
  width: 24px;
  height: 24px;
}

.feature-card__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.feature-card__desc {
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.5;
}

.feature-card__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gold);
  margin-top: 12px;
}

.feature-card__link:hover { color: var(--gold-bright); }

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
}

.badge--gold { background: var(--gold-muted); color: var(--gold); }
.badge--blue { background: var(--blue-muted); color: var(--blue); }
.badge--ok   { background: var(--ok-bg); color: var(--ok); }
.badge--err  { background: var(--err-bg); color: var(--err); }

/* ── TOC (right rail) ── */
.toc {
  position: fixed;
  top: calc(var(--topbar-h) + 40px);
  right: 24px;
  width: 220px;
  font-size: 12px;
}

.toc__title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-3);
  margin-bottom: 12px;
}

.toc__link {
  display: block;
  padding: 3px 0 3px 12px;
  color: var(--text-3);
  border-left: 1px solid var(--border);
  transition: all var(--transition);
}

.toc__link:hover {
  color: var(--text);
  border-left-color: var(--gold-dim);
}

.toc__link--active {
  color: var(--gold);
  border-left-color: var(--gold);
}

.toc__link--depth-3 { padding-left: 24px; }

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 48px;
  margin-left: var(--sidebar-w);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-3);
}

.footer a { color: var(--text-2); }
.footer a:hover { color: var(--gold); }

/* ── Page Navigation ── */
.page-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.page-nav__link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  flex: 1;
  max-width: 50%;
  transition: border-color var(--transition), background var(--transition);
}

.page-nav__link:hover {
  border-color: var(--gold-dim);
  background: var(--surface-alt);
}

.page-nav__label {
  font-size: 11px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.page-nav__title {
  font-size: 14px;
  font-weight: 500;
  color: var(--gold);
}

.page-nav__link--next { text-align: right; margin-left: auto; }

/* ── Search ── */
.search {
  position: relative;
}

.search__input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 12px 6px 32px;
  color: var(--text);
  font-size: 13px;
  width: 200px;
  outline: none;
  transition: all var(--transition);
}

.search__input::placeholder { color: var(--text-3); }
.search__input:focus { border-color: var(--gold-dim); width: 280px; }

.search__icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  fill: var(--text-3);
}

.search__kbd {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-3);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
}

/* ── Home Layout (no sidebar) ── */
.layout--home { display: block; }
.layout--home .content { margin-left: 0; max-width: 1000px; margin: 0 auto; padding: 40px 48px 80px; }

/* ── Responsive ── */
@media (max-width: 1200px) {
  .toc { display: none; }
}

@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); transition: transform 0.2s ease; }
  .sidebar--open { transform: translateX(0); }
  .content { margin-left: 0; padding: 24px 20px 60px; }
  .footer { margin-left: 0; padding: 24px 20px; }
  .topbar__toggle { display: flex; }
  .no-sidebar .topbar__toggle { display: none; }
  .topbar__nav { display: none; }
  .hero__title { font-size: 32px; }
  .hero__subtitle { font-size: 16px; }
}

/* ── Syntax highlight overrides ── */
.highlight pre { background: var(--surface) !important; border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; }
.highlight code { background: none !important; border: none !important; padding: 0 !important; color: var(--text) !important; }

/* ── Copy button on code blocks ── */
.code-block {
  position: relative;
}

.code-block__copy {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-3);
  padding: 4px 8px;
  font-size: 11px;
  cursor: pointer;
  opacity: 0;
  transition: all var(--transition);
}

.code-block:hover .code-block__copy { opacity: 1; }
.code-block__copy:hover { color: var(--text); border-color: var(--gold-dim); }

/* ── Tabs ── */
.tabs {
  margin-bottom: 20px;
}

.tabs__nav {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.tabs__btn {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}

.tabs__btn:hover { color: var(--text); }
.tabs__btn--active { color: var(--gold); border-bottom-color: var(--gold); }

.tabs__panel { display: none; }
.tabs__panel--active { display: block; }

/* ── Config table ── */
.config-table { font-size: 13px; }
.config-table td:first-child { font-family: var(--font-mono); font-size: 12px; color: var(--gold-bright); white-space: nowrap; }
.config-table td:nth-child(2) { font-family: var(--font-mono); font-size: 12px; color: var(--text-3); }

/* ── Video Section ── */
.video {
  max-width: 800px;
  margin: 0 auto 60px;
}

.video__title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  margin-bottom: 24px;
}

.video__wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.video__wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ── Screenshot styling ── */
.prose img {
  max-width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin: 24px 0;
  transition: border-color var(--transition);
}

.prose img:hover {
  border-color: var(--gold-dim);
}

/* ── Architecture diagram frame ── */
.arch-diagram {
  margin: 32px 0;
  padding: 24px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
}

.arch-diagram img {
  max-width: 100%;
  border-radius: var(--radius);
  border: none;
  margin: 0;
}

/* ── Sub-page navigation cards ── */
.subpage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.subpage-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  text-decoration: none;
  color: var(--text);
  position: relative;
  transition: border-color var(--transition), background var(--transition);
}

.subpage-card:hover {
  border-color: var(--gold-dim);
  background: var(--surface-alt);
}

.subpage-card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--gold);
}

.subpage-card-desc {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.5;
}

.subpage-card-arrow {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 1.2rem;
  color: var(--text-3);
  transition: color 0.2s, transform 0.2s;
}

.subpage-card:hover .subpage-card-arrow {
  color: var(--gold);
  transform: translateX(3px);
}

/* ── Enhanced Hero ── */
.hero {
  text-align: center;
  padding: 80px 0 60px;
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

/* no radial glow -- keep it flat */

/* ── Enhanced Feature Cards ── */
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  border-color: var(--gold-dim);
  background: var(--surface-alt);
}

/* ── Enhanced Table Styling ── */
.prose table {
  width: 100%;
  margin-bottom: 20px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.prose th {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 2px solid var(--border);
  font-weight: 600;
  color: var(--gold);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--surface);
}

.prose td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

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

/* ── Enhanced Code Blocks ── */
.prose pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 20px;
  overflow-x: auto;
  line-height: 1.5;
  position: relative;
}

.prose pre::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--gold-dim);
  border-radius: 3px 0 0 3px;
}

/* ── Blockquote Enhancement ── */
.prose blockquote {
  border-left: 3px solid var(--gold);
  background: var(--gold-glow);
  padding: 16px 24px;
  margin-bottom: 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text-2);
}

/* ── Sidebar Enhancement ── */
.sidebar {
  position: fixed;
  top: var(--topbar-h);
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: var(--black);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 20px 0;
  z-index: 50;
}

/* ── Topbar Enhancement ── */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--topbar-h);
  background: var(--black);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
}