/* ============================================================
   GoClaw Docs - Custom Styles
   Matching goclaw-web warm + bold dark theme
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@600;700&family=Source+Sans+3:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --color-primary: #E63946;
  --color-secondary: #F97316;
  --color-amber: #F59E0B;
  --color-bg-dark: #0F0F1A;
  --color-bg-card: #1A1A2E;
  --color-bg-card-hover: #20203A;
  --color-bg-sidebar: #131325;
  --color-text-light: #F8FAFC;
  --color-text-muted: #94A3B8;
  --color-text-dim: #64748B;
  --color-border: rgba(255, 255, 255, 0.08);
  --gradient-cta: linear-gradient(135deg, #E63946, #F97316);
  --gradient-text: linear-gradient(135deg, #E63946, #F97316, #F59E0B);
  --transition-base: 200ms ease;
  --sidebar-width: 280px;
  --navbar-height: 56px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Source Sans 3', system-ui, sans-serif;
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Lexend', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.3;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--navbar-height);
  background: rgba(15, 15, 26, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 24px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: 'Lexend', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text-light);
  flex-shrink: 0;
}

.nav-brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--gradient-cta);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: white;
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}

.nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color var(--transition-base);
}

.nav-link:hover {
  color: var(--color-text-light);
}

/* Copy for AI Dropdown */
.copy-ai-dropdown {
  position: relative;
}

.copy-ai-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  color: var(--color-text-light);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 0.8rem;
  font-weight: 500;
  font-family: 'Source Sans 3', sans-serif;
  cursor: pointer;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.copy-ai-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.copy-ai-chevron {
  transition: transform var(--transition-base);
}

.copy-ai-dropdown.open .copy-ai-chevron {
  transform: rotate(180deg);
}

.copy-ai-menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  width: 280px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 6px;
  z-index: 300;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.copy-ai-dropdown.open .copy-ai-menu {
  display: block;
}

.copy-ai-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  color: var(--color-text-light);
  border: none;
  background: none;
  width: 100%;
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.85rem;
  text-align: left;
  transition: background var(--transition-base);
}

.copy-ai-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.copy-ai-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-text-muted);
}

.copy-ai-item strong {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.copy-ai-item span {
  display: block;
  font-size: 0.72rem;
  color: var(--color-text-dim);
  margin-top: 1px;
}

.copy-ai-separator {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
  padding: 8px 10px 4px;
  border-top: 1px solid var(--color-border);
  margin-top: 4px;
}

.copy-ai-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-primary);
  color: var(--color-text-light);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  z-index: 9999;
  animation: fadeInUp 0.2s ease;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.github-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  color: var(--color-text-light);
  text-decoration: none;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.github-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

#mobile-sidebar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-light);
  cursor: pointer;
  padding: 4px;
  margin-right: 12px;
}

/* ============================================================
   SEARCH
   ============================================================ */
.search-container {
  position: relative;
  margin: 0 24px;
  flex: 1;
  max-width: 400px;
}

.search-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 6px 12px 6px 34px;
  font-size: 0.85rem;
  font-family: 'Source Sans 3', sans-serif;
  color: var(--color-text-light);
  transition: border-color var(--transition-base);
}

.search-input::placeholder {
  color: var(--color-text-dim);
}

.search-input:focus {
  outline: none;
  border-color: rgba(230, 57, 70, 0.5);
}

.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-dim);
  pointer-events: none;
}

.search-results {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 4px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  max-height: 320px;
  overflow-y: auto;
  z-index: 200;
}

.search-results.active {
  display: block;
}

.search-result-item {
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: background var(--transition-base);
}

.search-result-item:hover {
  background: var(--color-bg-card-hover);
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-light);
}

.search-result-snippet {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.layout {
  padding-top: var(--navbar-height);
  min-height: 100vh;
  margin-left: var(--sidebar-width);
  display: flex;
  justify-content: center;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
#sidebar {
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-bg-sidebar);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
  padding: 20px 0;
  z-index: 50;
  transition: transform 0.3s ease;
}

.sidebar-section {
  margin-bottom: 8px;
}

.sidebar-section-title {
  padding: 6px 20px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}

.sidebar-link {
  display: block;
  padding: 6px 20px 6px 24px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-base), background var(--transition-base), border-color var(--transition-base);
  border-left: 2px solid transparent;
  cursor: pointer;
}

.sidebar-link:hover {
  color: var(--color-text-light);
  background: rgba(255, 255, 255, 0.03);
}

.sidebar-link.active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  background: rgba(230, 57, 70, 0.06);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
#content {
  min-width: 0;
  width: 100%;
  padding: 32px 48px 80px;
  max-width: 900px;
}

#content-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--color-text-dim);
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: 12px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================================
   MARKDOWN CONTENT STYLES
   ============================================================ */
.markdown-body h1 {
  font-size: 2rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.markdown-body h2 {
  font-size: 1.5rem;
  margin-top: 40px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.markdown-body h3 {
  font-size: 1.2rem;
  margin-top: 28px;
  margin-bottom: 8px;
}

.markdown-body h4 {
  font-size: 1rem;
  margin-top: 20px;
  margin-bottom: 6px;
}

.markdown-body p {
  margin-bottom: 14px;
  color: var(--color-text-muted);
}

.markdown-body a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

.markdown-body a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.markdown-body strong {
  color: var(--color-text-light);
  font-weight: 600;
}

.markdown-body ul, .markdown-body ol {
  margin-bottom: 14px;
  padding-left: 24px;
  color: var(--color-text-muted);
}

.markdown-body li {
  margin-bottom: 4px;
}

.markdown-body li > ul, .markdown-body li > ol {
  margin-bottom: 0;
}

.markdown-body blockquote {
  border-left: 3px solid var(--color-primary);
  padding: 8px 16px;
  margin: 16px 0;
  background: rgba(230, 57, 70, 0.05);
  border-radius: 0 8px 8px 0;
  color: var(--color-text-muted);
}

.markdown-body blockquote p {
  margin-bottom: 0;
}

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

/* Code blocks */
.markdown-body code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85em;
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  color: #F9A8D4;
}

.markdown-body pre {
  background: #0D0D1A;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 16px 20px;
  margin: 16px 0;
  overflow-x: auto;
  position: relative;
}

.markdown-body pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--color-text-light);
}

/* Tables */
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.88rem;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
}

.markdown-body thead th {
  background: rgba(255, 255, 255, 0.04);
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--color-text-light);
  border-bottom: 1px solid var(--color-border);
}

.markdown-body tbody td {
  padding: 8px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--color-text-muted);
}

.markdown-body tbody tr:last-child td {
  border-bottom: none;
}

.markdown-body tbody tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Mermaid diagrams — interactive zoom container */
.mermaid-wrapper {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  margin: 24px 0;
  overflow: hidden;
  min-height: 250px;
  cursor: grab;
}

.mermaid-wrapper:active {
  cursor: grabbing;
}

.mermaid-wrapper .mermaid {
  padding: 24px 16px;
  text-align: center;
  transform-origin: 0 0;
}

.mermaid-wrapper svg {
  max-width: none;
  height: auto;
}

.mermaid-controls {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
  z-index: 10;
}

.mermaid-controls button {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-dark);
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-base), color var(--transition-base);
}

.mermaid-controls button:hover {
  background: var(--color-bg-card-hover);
  color: var(--color-text-light);
}

/* ============================================================
   TABLE OF CONTENTS (right side)
   ============================================================ */
#toc {
  position: fixed;
  top: calc(var(--navbar-height) + 32px);
  right: 24px;
  width: 220px;
  max-height: calc(100vh - var(--navbar-height) - 64px);
  overflow-y: auto;
  font-size: 0.75rem;
  display: none;
}

#toc.visible {
  display: block;
}

.toc-title {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  margin-bottom: 8px;
}

.toc-link {
  display: block;
  padding: 3px 0 3px 12px;
  color: var(--color-text-dim);
  text-decoration: none;
  border-left: 1px solid var(--color-border);
  transition: color var(--transition-base), border-color var(--transition-base);
  line-height: 1.4;
}

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

.toc-link.active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

.toc-link.depth-3 {
  padding-left: 24px;
  font-size: 0.7rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
#footer {
  margin-left: var(--sidebar-width);
  border-top: 1px solid var(--color-border);
  padding: 24px 48px;
  color: var(--color-text-dim);
  font-size: 0.8rem;
  text-align: center;
}

/* ============================================================
   SIDEBAR OVERLAY (mobile)
   ============================================================ */
#sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 40;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1200px) {
  #toc { display: none !important; }
  #content { max-width: 100%; }
}

@media (max-width: 768px) {
  #mobile-sidebar-toggle { display: block; }

  #sidebar {
    transform: translateX(-100%);
  }

  #sidebar.open {
    transform: translateX(0);
  }

  #sidebar.open ~ #sidebar-overlay {
    display: block;
  }

  .layout {
    margin-left: 0;
  }

  #content {
    padding: 24px 20px 60px;
  }

  #footer {
    margin-left: 0;
    padding: 20px;
  }

  .search-container {
    display: none;
  }

  .nav-links .nav-link {
    display: none;
  }
}

@media (max-width: 480px) {
  .markdown-body h1 { font-size: 1.5rem; }
  .markdown-body h2 { font-size: 1.25rem; }
  .markdown-body pre { padding: 12px 14px; }
}

/* ============================================================
   LANGUAGE TOGGLE
   ============================================================ */
.lang-toggle {
  display: flex;
  gap: 2px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 2px;
  margin-right: 8px;
}

.lang-btn {
  padding: 3px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-dim);
  background: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: color var(--transition-base), background var(--transition-base);
  font-family: 'Source Sans 3', sans-serif;
}

.lang-btn:hover {
  color: var(--color-text-light);
}

.lang-btn.active {
  background: var(--color-primary);
  color: white;
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}