:root {
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-border: #e0e0e0;
  --color-text: #212121;
  --color-text-secondary: #616161;
  --color-primary: #5277c3;
  --color-primary-light: #7393d0;
  --color-code-bg: #f5f5f5;
  --color-success: #4caf50;
  --sidebar-width: 280px;
  --header-height: 60px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #1a1a1a;
    --color-surface: #242424;
    --color-border: #333333;
    --color-text: #e0e0e0;
    --color-text-secondary: #9e9e9e;
    --color-primary: #7393d0;
    --color-primary-light: #93aee0;
    --color-code-bg: #2d2d2d;
  }
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 24px;
}

.header-content {
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.header h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

.header .subtitle {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.main {
  display: flex;
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
}

.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--header-height));
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
  padding: 16px;
}

.toc-loading {
  color: var(--color-text-secondary);
  padding: 8px;
}

.toc-node {
  margin-left: 0;
}

.toc-node.nested {
  margin-left: 16px;
}

.toc-item {
  display: flex;
  align-items: center;
  padding: 4px 8px;
  cursor: pointer;
  border-radius: 4px;
  font-size: 0.875rem;
  color: var(--color-text);
  text-decoration: none;
}

.toc-item:hover {
  background: var(--color-code-bg);
}

.toc-item.active {
  background: var(--color-primary);
  color: white;
}

.toc-toggle {
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 4px;
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  transition: transform 0.15s ease;
}

.toc-toggle.expanded {
  transform: rotate(90deg);
}

.toc-children {
  display: none;
}

.toc-children.expanded {
  display: block;
}

.content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 24px;
  max-width: 1000px;
}

.search-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

#search-input {
  flex: 1;
  min-width: 200px;
  padding: 12px 16px;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.15s ease;
}

#search-input:focus {
  border-color: var(--color-primary);
}

.results-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  margin-bottom: 16px;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.results-info-last {
  font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
  font-size: 0.8rem;
  max-width: 50%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: right;
}

.results-loading {
  color: var(--color-text-secondary);
  padding: 24px;
  text-align: center;
}

.option-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}

.option-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  gap: 16px;
}

.option-name {
  font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  word-break: break-all;
}

.option-badges {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.badge {
  padding: 2px 8px;
  font-size: 0.75rem;
  border-radius: 4px;
  background: var(--color-code-bg);
  color: var(--color-text-secondary);
}

.badge.readonly {
  background: #fff3e0;
  color: #e65100;
}

@media (prefers-color-scheme: dark) {
  .badge.readonly {
    background: #4a3a25;
    color: #ffb74d;
  }
}

.option-type {
  font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.option-description {
  margin-bottom: 16px;
  line-height: 1.6;
}

.option-description code {
  font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
  background: var(--color-code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.875em;
}

.option-description ul,
.option-description ol {
  margin-left: 1.5em;
  margin-top: 0.5em;
  margin-bottom: 0.5em;
}

.option-description li {
  margin-bottom: 0.25em;
}

.option-details {
  display: grid;
  gap: 12px;
}

.option-detail {
  display: flex;
  gap: 12px;
}

.option-detail-label {
  flex-shrink: 0;
  width: 80px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  padding-top: 4px;
}

.option-detail-value {
  flex: 1;
  min-width: 0;
}

.option-detail-value pre {
  font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
  font-size: 0.875rem;
  background: var(--color-code-bg);
  padding: 12px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.option-sources {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.source-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  color: var(--color-primary);
  text-decoration: none;
}

.source-link:hover {
  text-decoration: underline;
}

.source-link .icon {
  font-size: 0.875rem;
}

.no-results {
  text-align: center;
  padding: 48px 24px;
  color: var(--color-text-secondary);
}

.no-results h3 {
  margin-bottom: 8px;
  color: var(--color-text);
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.page-btn {
  padding: 8px 12px;
  font-size: 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.15s ease;
}

.page-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

.page-btn:disabled {
  opacity: 0.5;
  cursor: default;
}

.page-ellipsis {
  padding: 8px 4px;
  color: var(--color-text-secondary);
}

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

  .content {
    margin-left: 0;
  }

  .search-bar {
    flex-direction: column;
  }
}