/* ========================================
   Claude API Docs — local mirror styles
   Inspired by hermes-agent.css; Anthropic orange palette.
   ======================================== */

:root {
  --color-bg: #ffffff;
  --color-bg-secondary: #fafaf7;
  --color-bg-tertiary: #f4f1ea;
  --color-text: #1a1a1a;
  --color-text-secondary: #4a4a4a;
  --color-text-muted: #6b6b6b;
  --color-border: #e8e4dc;
  --color-primary: #d97757;
  --color-primary-hover: #c8633f;
  --color-primary-light: #fce8de;
  --color-accent: #8b6c4e;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-info: #3b82f6;
  --color-code-bg: #1e1e1e;
  --color-code-text: #e8e8e8;
  --color-callout-tip-bg: #f0f9ff;
  --color-callout-tip-border: #3b82f6;
  --color-callout-note-bg: #f5f5f4;
  --color-callout-note-border: #71717a;
  --color-callout-warning-bg: #fffbeb;
  --color-callout-warning-border: #f59e0b;
  --color-callout-danger-bg: #fef2f2;
  --color-callout-danger-border: #ef4444;
  --color-callout-check-bg: #f0fdf4;
  --color-callout-check-border: #10b981;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
  --sidebar-width: 280px;
  --toc-width: 240px;
  --header-height: 60px;
  --chrome-height: 60px;
  --max-content: 820px;
  --transition: all 0.2s ease;
}

[data-theme="dark"] {
  --color-bg: #1a1a1a;
  --color-bg-secondary: #232323;
  --color-bg-tertiary: #2a2a2a;
  --color-text: #ededed;
  --color-text-secondary: #b4b4b4;
  --color-text-muted: #8a8a8a;
  --color-border: #333333;
  --color-primary: #e08968;
  --color-primary-hover: #ec9879;
  --color-primary-light: rgba(224, 137, 104, 0.18);
  --color-callout-tip-bg: rgba(59, 130, 246, 0.12);
  --color-callout-note-bg: rgba(113, 113, 122, 0.12);
  --color-callout-warning-bg: rgba(245, 158, 11, 0.12);
  --color-callout-danger-bg: rgba(239, 68, 68, 0.12);
  --color-callout-check-bg: rgba(16, 185, 129, 0.12);
  --color-code-bg: #0d0d0d;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--chrome-height) + 16px); }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 15px;
  transition: background-color 0.25s, color 0.25s;
  -webkit-font-smoothing: antialiased;
}

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

/* ---------- layout ---------- */

.app { min-height: 100vh; display: flex; flex-direction: column; }

.header {
  position: fixed; top: 0; left: 0; right: 0; height: var(--header-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto minmax(220px, 1fr);
  align-items: center;
  padding: 0 24px; z-index: 100;
}
.header-left { justify-self: start; display: flex; align-items: center; gap: 12px; }
.header-center { justify-self: center; display: flex; align-items: center; }
.header-right { justify-self: end; display: flex; align-items: center; gap: 10px; }
.menu-toggle {
  display: none; background: none; border: none; cursor: pointer;
  color: var(--color-text); padding: 8px; border-radius: var(--radius-sm);
}
.menu-toggle:hover { background: var(--color-bg-secondary); }
.logo {
  display: flex; align-items: center; gap: 10px; color: var(--color-text);
  font-weight: 600; font-size: 16px;
}
.logo:hover { text-decoration: none; }
.logo-icon {
  width: 32px; height: 32px; border-radius: 8px; background: var(--color-primary);
  color: white; display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.header-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: var(--radius-sm);
  background: var(--color-bg-secondary); border: 1px solid var(--color-border);
  color: var(--color-text-secondary); font-size: 13px; font-weight: 500;
  cursor: pointer; transition: var(--transition);
}
.header-btn:hover { color: var(--color-text); background: var(--color-bg-tertiary); text-decoration: none; }
.theme-toggle { padding: 6px 8px; }

/* ---------- top-tabs (live INSIDE .header, horizontally centered) ---------- */

.top-tabs {
  display: flex; align-items: center; gap: 4px;
}
.top-tab {
  display: inline-flex; align-items: center;
  padding: 6px 16px;
  font-size: 14px; font-weight: 500; white-space: nowrap;
  color: var(--color-text-secondary);
  border-radius: 9999px;
  transition: background-color 0.18s, color 0.18s;
}
.top-tab:hover {
  color: var(--color-text);
  background: var(--color-bg-tertiary);
  text-decoration: none;
}
.top-tab.active {
  background: var(--color-text);
  color: var(--color-bg);
  font-weight: 600;
}
.top-tab.active:hover {
  background: var(--color-text);
  color: var(--color-bg);
}
.top-tab.disabled {
  color: var(--color-text-muted);
  opacity: 0.5;
  cursor: not-allowed;
}
.top-tab.disabled:hover {
  background: transparent;
  color: var(--color-text-muted);
}

/* dropdown variant */
.top-tab-wrap {
  position: relative;
  display: inline-flex;
}
.top-tab-dropdown {
  /* tighten right padding to make room for caret */
  padding-right: 10px;
}
.top-tab-caret {
  margin-left: 4px;
  font-size: 10px;
  opacity: 0.8;
  transition: transform 0.18s;
}
.top-tab-wrap:hover .top-tab-caret,
.top-tab-wrap:focus-within .top-tab-caret {
  transform: rotate(180deg);
}
.top-tab-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 220px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s, transform 0.15s, visibility 0.15s;
  z-index: 200;
}
.top-tab-wrap:hover .top-tab-menu,
.top-tab-wrap:focus-within .top-tab-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.top-tab-menu-item {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text-secondary);
  border-radius: 6px;
  white-space: nowrap;
}
.top-tab-menu-item:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text);
  text-decoration: none;
}

.main {
  margin-top: var(--chrome-height);
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr var(--toc-width);
  gap: 0;
  min-height: calc(100vh - var(--chrome-height));
}

.sidebar {
  position: sticky; top: var(--chrome-height);
  height: calc(100vh - var(--chrome-height));
  overflow-y: auto;
  background: var(--color-bg-secondary);
  border-right: 1px solid var(--color-border);
  padding: 24px 16px;
}
.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }

.sidebar-nav { display: flex; flex-direction: column; gap: 20px; }
.nav-section { display: flex; flex-direction: column; gap: 4px; }
.nav-title {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--color-text-muted);
  padding: 4px 12px; margin-bottom: 2px;
}
.nav-list { list-style: none; display: flex; flex-direction: column; gap: 2px; }
.nav-link {
  display: block; padding: 6px 12px; border-radius: var(--radius-sm);
  font-size: 13.5px; color: var(--color-text-secondary);
  transition: var(--transition);
}
.nav-link:hover { background: var(--color-bg-tertiary); color: var(--color-text); text-decoration: none; }
.nav-link.active {
  background: var(--color-primary-light); color: var(--color-primary);
  font-weight: 600;
}

.content {
  padding: 32px 48px 80px;
  max-width: calc(var(--max-content) + 96px);
  margin: 0 auto;
  width: 100%;
}

.toc {
  position: sticky; top: var(--chrome-height);
  height: calc(100vh - var(--chrome-height));
  overflow-y: auto;
  padding: 32px 20px;
  border-left: 1px solid var(--color-border);
  font-size: 13px;
}
.toc-title {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--color-text-muted); margin-bottom: 12px;
}
.toc-list { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.toc-link {
  display: block; padding: 4px 8px; border-left: 2px solid transparent;
  color: var(--color-text-secondary); font-size: 13px;
}
.toc-link:hover { color: var(--color-text); text-decoration: none; }
.toc-h3 { padding-left: 12px; font-size: 12.5px; }
.toc-link.active {
  border-left-color: var(--color-primary); color: var(--color-primary); font-weight: 600;
}

.breadcrumbs { font-size: 13px; color: var(--color-text-muted); margin-bottom: 16px; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; }
.breadcrumbs .sep { color: var(--color-text-muted); }
.breadcrumbs a { color: var(--color-text-secondary); }
.breadcrumbs li[aria-current="page"] { color: var(--color-text); }

/* ---------- doc article ---------- */

.doc h1 {
  font-size: 32px; font-weight: 700; margin: 0 0 16px;
  letter-spacing: -0.015em;
}
.doc h2 {
  font-size: 22px; font-weight: 700; margin: 40px 0 12px;
  padding-bottom: 6px; border-bottom: 1px solid var(--color-border);
}
.doc h3 { font-size: 18px; font-weight: 600; margin: 28px 0 10px; }
.doc h4 { font-size: 15px; font-weight: 600; margin: 20px 0 8px; }
.doc p, .doc ul, .doc ol { margin: 12px 0; }
.doc ul, .doc ol { padding-left: 1.5em; }
.doc li { margin: 4px 0; }
.doc hr { border: none; border-top: 1px solid var(--color-border); margin: 32px 0; }
.doc blockquote {
  border-left: 3px solid var(--color-border); padding: 4px 16px;
  color: var(--color-text-secondary); margin: 16px 0;
}
.doc table {
  width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px;
}
.doc table th, .doc table td {
  border: 1px solid var(--color-border); padding: 8px 12px; text-align: left;
}
.doc table th { background: var(--color-bg-secondary); font-weight: 600; }
.doc img { max-width: 100%; border-radius: var(--radius-sm); }

.doc code {
  font-family: var(--font-mono); font-size: 0.9em;
  background: var(--color-bg-tertiary); padding: 2px 5px;
  border-radius: 4px; color: var(--color-primary);
}
.doc pre {
  background: var(--color-code-bg); color: var(--color-code-text);
  padding: 16px; border-radius: var(--radius-sm);
  overflow-x: auto; margin: 16px 0; font-size: 13.5px;
  line-height: 1.6;
}
.doc pre code {
  background: transparent; color: inherit; padding: 0; font-size: inherit;
}

/* ---------- MDX: callouts ---------- */

.callout {
  display: flex; gap: 12px; padding: 12px 16px;
  border-left: 4px solid var(--color-callout-note-border);
  background: var(--color-callout-note-bg);
  border-radius: var(--radius-sm); margin: 16px 0;
}
.callout-tip { border-left-color: var(--color-callout-tip-border); background: var(--color-callout-tip-bg); }
.callout-warning { border-left-color: var(--color-callout-warning-border); background: var(--color-callout-warning-bg); }
.callout-danger { border-left-color: var(--color-callout-danger-border); background: var(--color-callout-danger-bg); }
.callout-check { border-left-color: var(--color-callout-check-border); background: var(--color-callout-check-bg); }
.callout-icon { font-size: 18px; line-height: 1.5; flex-shrink: 0; }
.callout-body { flex: 1; min-width: 0; }
.callout-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; opacity: 0.7; margin-bottom: 4px;
}
.callout-content > *:first-child { margin-top: 0; }
.callout-content > *:last-child { margin-bottom: 0; }

/* ---------- MDX: steps ---------- */

.steps {
  list-style: none; counter-reset: step;
  padding: 0; margin: 24px 0;
  border-left: 2px solid var(--color-border);
}
.steps .step {
  position: relative; padding: 0 0 24px 40px;
  counter-increment: step;
}
.steps .step::before {
  content: counter(step);
  position: absolute; left: -16px; top: 0;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--color-primary); color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px;
}
.step-title { margin: 0 0 8px; font-size: 16px; font-weight: 600; }
.step-body > *:first-child { margin-top: 0; }
.step-body > *:last-child { margin-bottom: 0; }

/* ---------- MDX: cards ---------- */

.card-group {
  display: grid;
  grid-template-columns: repeat(var(--card-cols, 2), minmax(0, 1fr));
  gap: 16px; margin: 20px 0;
}
.card {
  display: block; padding: 16px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.card-link:hover {
  border-color: var(--color-primary); transform: translateY(-2px);
  box-shadow: var(--shadow-md); text-decoration: none;
}
.card-header { display: flex; align-items: center; gap: 10px; }
.card-icon {
  width: 28px; height: 28px; border-radius: var(--radius-sm);
  background: var(--color-primary-light); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center; font-size: 14px;
}
.card-title { font-weight: 600; color: var(--color-text); }
.card-body { margin-top: 8px; font-size: 14px; color: var(--color-text-secondary); }
.card-link .card-title { color: var(--color-text); }

/* ---------- MDX: tabs / codegroup ---------- */

.tabs {
  margin: 16px 0; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); overflow: hidden;
}
.tab-buttons {
  display: flex; gap: 0; background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border); overflow-x: auto;
}
.tab-button {
  background: none; border: none; cursor: pointer;
  padding: 10px 16px; font-size: 13px; font-weight: 500;
  color: var(--color-text-secondary); white-space: nowrap;
  border-bottom: 2px solid transparent; transition: var(--transition);
  font-family: inherit;
}
.tab-button:hover { color: var(--color-text); background: var(--color-bg-tertiary); }
.tab-button.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.tab-panel { display: none; padding: 16px; }
.tab-panel.active { display: block; }
.tab-panel > *:first-child { margin-top: 0; }
.tab-panel > *:last-child { margin-bottom: 0; }
.tabs.codegroup .tab-panel { padding: 0; }
.tabs.codegroup .tab-panel pre { margin: 0; border-radius: 0; }

/* ---------- MDX: misc ---------- */

.platform-availability {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 10px; font-size: 12px;
  background: var(--color-bg-tertiary); border-radius: 999px;
  margin: 8px 0;
}
.platform-label { color: var(--color-text-muted); font-weight: 500; }
.frame { margin: 16px 0; }
.frame figcaption { font-size: 13px; color: var(--color-text-muted); text-align: center; margin-top: 6px; }
.accordion { border: 1px solid var(--color-border); border-radius: var(--radius-sm); margin: 12px 0; }
.accordion summary { padding: 10px 14px; cursor: pointer; font-weight: 500; }
.accordion-body { padding: 0 14px 14px; }

.mdx-unknown {
  border: 1px dashed var(--color-warning); padding: 10px 12px;
  border-radius: var(--radius-sm); margin: 12px 0; background: var(--color-callout-warning-bg);
}
.mdx-unknown-label { font-family: var(--font-mono); font-size: 12px; color: var(--color-warning); margin-bottom: 6px; }

/* ---------- landing page ---------- */

.landing { padding: 60px 24px; max-width: 1100px; margin: 0 auto; }
.landing-hero { text-align: center; margin-bottom: 48px; }
.landing-hero h1 { font-size: 36px; margin-bottom: 12px; }
.landing-sub { color: var(--color-text-secondary); font-size: 16px; }
.landing-section { margin: 40px 0; }
.landing-section h2 {
  font-size: 20px; font-weight: 700; margin-bottom: 16px;
  padding-bottom: 8px; border-bottom: 1px solid var(--color-border);
}
.top-pages { list-style: none; display: flex; gap: 12px; flex-wrap: wrap; padding: 0; }
.top-pages li a {
  display: inline-flex; padding: 8px 16px;
  background: var(--color-bg-secondary); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); color: var(--color-text);
}
.top-pages li a:hover { border-color: var(--color-primary); color: var(--color-primary); text-decoration: none; }
.cat-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px;
}
.cat-card {
  display: block; padding: 18px; background: var(--color-bg-secondary);
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  color: var(--color-text); transition: var(--transition);
}
.cat-card:hover {
  border-color: var(--color-primary); transform: translateY(-2px);
  box-shadow: var(--shadow-md); text-decoration: none;
}
.cat-card-disabled {
  opacity: 0.5; cursor: not-allowed;
}
.cat-card-disabled:hover {
  border-color: var(--color-border); transform: none; box-shadow: none;
}
.cat-card-head { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.cat-icon { color: var(--color-primary); }
.cat-count { font-size: 12px; color: var(--color-text-muted); margin: 4px 0 12px; }
.cat-list { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.cat-list li a { font-size: 13px; color: var(--color-text-secondary); }
.cat-list li a:hover { color: var(--color-primary); }

/* ---------- responsive ---------- */

@media (max-width: 1100px) {
  .main { grid-template-columns: var(--sidebar-width) 1fr; }
  .toc { display: none; }
}
/* On narrow screens hide the centered tabs from the header (would crowd it);
   they still serve as nav via the landing page categories or sidebar.
   We could move them to a second row in a future pass. */
@media (max-width: 1024px) {
  .header { grid-template-columns: auto 1fr auto; }
  .header-center { display: none; }
}
@media (max-width: 768px) {
  .menu-toggle { display: inline-flex; }
  .main { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; top: var(--chrome-height); left: 0; bottom: 0;
    width: 80%; max-width: 320px; z-index: 50;
    transform: translateX(-100%); transition: transform 0.25s;
  }
  .sidebar.open { transform: translateX(0); }
  .overlay { display: none; }
  .overlay.active { display: block; position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 40; }
  .content { padding: 24px 18px 60px; }
  .header { padding: 0 16px; }
}