/* Guide Page Styles */

/* Override base body overflow for guide page */
.guide-body {
  overflow: hidden;
  height: 100vh;
}

/* === Layout === */
.guide-layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* === Sidebar === */
.guide-sidebar {
  width: 300px;
  min-width: 300px;
  background: var(--bg-card);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  transition: min-width 0.3s, width 0.3s;
}

.guide-sidebar.collapsed {
  width: 48px;
  min-width: 48px;
}

.guide-sidebar.collapsed .sidebar-toc,
.guide-sidebar.collapsed .sidebar-header h3 {
  display: none;
}

.guide-sidebar.collapsed .sidebar-header {
  justify-content: center;
  padding: 16px 8px;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.sidebar-header h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin: 0;
  white-space: nowrap;
}

.sidebar-toggle {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 16px;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}

.sidebar-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.sidebar-toc {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}

.sidebar-toc::-webkit-scrollbar {
  width: 4px;
}

.sidebar-toc::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-toc::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
}

.sidebar-loading {
  color: var(--text-muted);
  font-size: 13px;
  padding: 16px 20px;
}

.toc-item {
  display: block;
  padding: 6px 20px;
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: all 0.15s;
  line-height: 1.4;
}

.toc-item:hover {
  color: var(--text-primary);
  background: rgba(50, 108, 229, 0.06);
  border-left-color: var(--k8s-blue);
}

.toc-item.active {
  color: var(--k8s-blue);
  border-left-color: var(--k8s-blue);
  background: rgba(50, 108, 229, 0.08);
  font-weight: 500;
}

.toc-item.toc-h1 {
  font-weight: 600;
  color: var(--text-primary);
  padding-top: 12px;
  padding-bottom: 8px;
  font-size: 13px;
}

.toc-item.toc-h2 {
  padding-left: 28px;
  font-size: 12.5px;
}

.toc-item.toc-h3 {
  padding-left: 40px;
  font-size: 12px;
  color: var(--text-muted);
}

/* === Main Content === */
.guide-content {
  flex: 1;
  overflow-y: auto;
  padding: 32px 48px 60px;
  min-width: 0;
  height: 100%;
}

.guide-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 300px;
  color: var(--text-muted);
  gap: 16px;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-subtle);
  border-top-color: var(--k8s-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* === Article Styles (rendered markdown) === */
.guide-article {
  display: none;
  line-height: 1.7;
  color: var(--text-primary);
  max-width: 1100px;
}

.guide-article.loaded {
  display: block;
}

.guide-article h1 {
  font-size: 28px;
  font-weight: 700;
  margin: 48px 0 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--k8s-blue);
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.guide-article h1:first-child {
  margin-top: 0;
}

.guide-article h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.guide-article h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 32px 0 12px;
  color: var(--k8s-blue);
}

.guide-article h4 {
  font-size: 15px;
  font-weight: 600;
  margin: 24px 0 10px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.guide-article p {
  margin: 0 0 16px;
  font-size: 15px;
}

.guide-article strong {
  color: #e6edf3;
  font-weight: 600;
}

.guide-article em {
  color: var(--text-secondary);
}

.guide-article a {
  color: var(--k8s-blue);
  text-decoration: none;
}

.guide-article a:hover {
  text-decoration: underline;
}

.guide-article ul, .guide-article ol {
  margin: 0 0 16px 24px;
  font-size: 15px;
}

.guide-article li {
  margin-bottom: 6px;
  line-height: 1.6;
}

.guide-article hr {
  border: none;
  height: 1px;
  background: var(--border-subtle);
  margin: 32px 0;
}

.guide-article blockquote {
  border-left: 3px solid var(--k8s-blue);
  background: rgba(50, 108, 229, 0.06);
  padding: 12px 20px;
  margin: 0 0 16px;
  border-radius: 0 8px 8px 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.guide-article blockquote strong {
  color: var(--k8s-blue);
}

/* Code blocks */
.guide-article pre {
  background: #0d1117;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 0 0 16px;
  overflow-x: auto;
}

.guide-article pre code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  line-height: 1.6;
  color: #79c0ff;
  background: none;
  padding: 0;
  border: none;
  border-radius: 0;
}

.guide-article code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  background: rgba(50, 108, 229, 0.1);
  color: #79c0ff;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(50, 108, 229, 0.15);
}

/* Tables */
.guide-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 16px;
  font-size: 14px;
}

.guide-article th {
  background: rgba(50, 108, 229, 0.1);
  color: var(--text-primary);
  font-weight: 600;
  text-align: left;
  padding: 10px 14px;
  border: 1px solid var(--border-subtle);
  font-size: 13px;
}

.guide-article td {
  padding: 8px 14px;
  border: 1px solid var(--border-subtle);
  vertical-align: top;
  color: var(--text-secondary);
}

.guide-article tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

.guide-article td code {
  font-size: 12px;
}

/* ASCII art / diagrams in code blocks */
.guide-article pre code {
  white-space: pre;
  word-break: normal;
}

/* === Guide Nav === */
.guide-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}

/* === Footer === */
.guide-footer {
  padding: 12px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.footer-credit {
  color: var(--k8s-blue);
  font-size: 12px;
}

.footer-credit strong {
  color: var(--text-primary);
}

/* === Back to top === */
.back-to-top {
  position: fixed;
  bottom: 60px;
  right: 24px;
  width: 40px;
  height: 40px;
  background: var(--k8s-blue);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s, transform 0.3s;
  z-index: 50;
  box-shadow: 0 4px 12px rgba(50, 108, 229, 0.4);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  background: #4a82f0;
}

/* === Mobile TOC button === */
.mobile-toc-btn {
  display: none;
}

/* === Sidebar overlay (mobile) === */
.sidebar-overlay {
  display: none;
}

/* === Back to Mind Map button (in header) === */
.guide-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  background: rgba(50, 108, 229, 0.1);
  border: 1px solid rgba(50, 108, 229, 0.3);
  border-radius: 8px;
  color: #326CE5;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.guide-back-btn:hover {
  background: rgba(50, 108, 229, 0.2);
  border-color: #326CE5;
}

/* === Search Bar === */
.guide-search-bar {
  position: relative;
  z-index: 9;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-subtle);
  padding: 8px 24px;
  display: none;
  flex-shrink: 0;
}

.guide-search-bar.open {
  display: flex;
}

.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 700px;
  margin: 0 auto;
  width: 100%;
}

.search-input-group {
  display: flex;
  align-items: center;
  flex: 1;
  background: var(--bg-dark);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 0 10px;
  transition: border-color 0.2s;
}

.search-input-group:focus-within {
  border-color: var(--k8s-blue);
}

.search-input-group .search-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  padding: 7px 8px;
  min-width: 0;
}

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

.search-filters {
  display: flex;
  gap: 4px;
}

.search-filter-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  width: 28px;
  height: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.search-filter-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
}

.search-filter-btn.active {
  background: rgba(50, 108, 229, 0.15);
  border-color: rgba(50, 108, 229, 0.4);
  color: var(--k8s-blue);
}

.search-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.search-count {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  min-width: 60px;
  text-align: center;
}

.search-count.no-results {
  color: #f85149;
}

.search-nav-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  color: var(--text-secondary);
  width: 28px;
  height: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.search-nav-btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.search-nav-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

.search-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.15s;
}

.search-close-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

/* === Search Trigger Button (in header) === */
.search-trigger-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

.search-trigger-btn:hover {
  background: rgba(50, 108, 229, 0.1);
  border-color: rgba(50, 108, 229, 0.3);
  color: var(--k8s-blue);
}

/* === Search Highlights === */
mark.search-highlight {
  background: rgba(255, 200, 0, 0.3);
  color: inherit;
  padding: 1px 0;
  border-radius: 2px;
  border-bottom: 2px solid rgba(255, 200, 0, 0.6);
}

mark.search-highlight.current {
  background: rgba(255, 152, 0, 0.5);
  border-bottom-color: #FF9800;
  box-shadow: 0 0 0 2px rgba(255, 152, 0, 0.3);
}

/* === Responsive === */
@media (max-width: 1024px) {
  .guide-sidebar {
    width: 260px;
    min-width: 260px;
  }

  .guide-content {
    padding: 24px 32px 60px;
  }
}

@media (max-width: 768px) {
  .guide-back-btn {
    display: none;
  }

  .guide-search-bar {
    padding: 8px 12px;
  }

  .search-bar-inner {
    flex-wrap: wrap;
    gap: 6px;
  }

  .search-input-group {
    flex: 1 1 100%;
    order: 1;
  }

  .search-filters {
    order: 2;
  }

  .search-nav {
    order: 3;
    flex: 1;
    justify-content: flex-end;
  }

  .search-close-btn {
    order: 4;
  }

  .search-count {
    min-width: 50px;
    font-size: 11px;
  }

  .guide-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 200;
    height: 100vh;
    width: 300px;
    min-width: 300px;
    transform: translateX(-100%);
    transition: transform 0.3s;
  }

  .guide-sidebar.mobile-open {
    transform: translateX(0);
  }

  .guide-sidebar.collapsed {
    transform: translateX(-100%);
  }

  .guide-content {
    padding: 20px 16px 80px;
  }

  .guide-article h1 {
    font-size: 22px;
  }

  .guide-article h2 {
    font-size: 18px;
  }

  .guide-article pre {
    padding: 12px;
  }

  .guide-article pre code {
    font-size: 11.5px;
  }

  .back-to-top {
    bottom: 70px;
    right: 16px;
  }

  .mobile-toc-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(50, 108, 229, 0.1);
    border: 1px solid rgba(50, 108, 229, 0.3);
    border-radius: 8px;
    color: #326CE5;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
  }

  .mobile-toc-btn:hover {
    background: rgba(50, 108, 229, 0.2);
  }

  .sidebar-overlay {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 199;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
  }

  .sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
  }
}