/**
 * Documentation Viewer Styles
 * Task: thrum-235d.5
 */

/* ============================================================================
   HEADER (shared with landing, scoped for docs)
   ========================================================================= */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: 48px;
}

.header-inner {
  max-width: 100%;
  padding: 0 var(--space-lg);
}

.header-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.logo:hover { text-decoration: none; }

.logo-glyph {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  text-shadow: 0 0 12px rgba(56, 189, 248, 0.5);
}

.logo-text {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 2px;
  text-transform: lowercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
}

.nav-link:hover { color: var(--primary); text-decoration: none; }

.nav-link-active { color: var(--primary); }

.nav-link-external::after {
  content: ' \2197';
  font-size: 10px;
}

/* ============================================================================
   SIDEBAR TOGGLE (mobile)
   ========================================================================= */

.sidebar-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.sidebar-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-muted);
  transition: all var(--transition-base);
}

/* ============================================================================
   DOCS LAYOUT
   ========================================================================= */

.docs-layout {
  display: flex;
  margin-top: 48px;
  min-height: calc(100vh - 48px);
}

/* ============================================================================
   SIDEBAR
   ========================================================================= */

.docs-sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--bg-base);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 48px;
  bottom: 0;
  left: 0;
  overflow-y: auto;
  z-index: 50;
}

.sidebar-search {
  position: relative;
  padding: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.sidebar-search input {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 8px 12px;
  background: var(--bg-panel-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-base);
}

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

.sidebar-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.15);
}

/* Search results dropdown */
.search-results {
  display: none;
  position: absolute;
  left: var(--space-md);
  right: var(--space-md);
  top: 100%;
  margin-top: 4px;
  background: var(--bg-panel-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  max-height: 360px;
  overflow-y: auto;
  z-index: 60;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

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

.search-result-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 100%;
  padding: 10px 12px;
  background: none;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  cursor: pointer;
  text-align: left;
  transition: background var(--transition-fast);
}

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

.search-result-item:hover,
.search-result-item.selected {
  background: rgba(56, 189, 248, 0.08);
}

.search-result-title {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.search-result-desc {
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.search-result-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.search-no-results {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-subtle);
  padding: 16px 12px;
  text-align: center;
}

.sidebar-nav {
  padding: var(--space-sm) 0;
}

/* Category groups */
.sidebar-category {
  padding: var(--space-sm) 0;
}

.sidebar-category-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-subtle);
  padding: var(--space-sm) var(--space-md);
  margin: 0;
}

.sidebar-link {
  display: block;
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-muted);
  padding: 6px var(--space-md) 6px var(--space-lg);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-link:hover {
  color: var(--text-primary);
  background: rgba(56, 189, 248, 0.04);
  text-decoration: none;
}

.sidebar-link.active {
  color: var(--primary);
  border-left-color: var(--primary);
  background: rgba(56, 189, 248, 0.08);
}

.sidebar-link.hidden {
  display: none;
}

.sidebar-category.hidden {
  display: none;
}

/* ============================================================================
   CONTENT
   ========================================================================= */

.docs-content {
  flex: 1;
  margin-left: 260px;
  min-width: 0;
}

.docs-content-inner {
  max-width: 820px;
  padding: var(--space-2xl) var(--space-2xl) 80px;
  margin: 0 auto;
}

/* Loading state */
.docs-loading {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-subtle);
  padding: var(--space-2xl);
  text-align: center;
}

/* Error state */
.docs-error {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--destructive);
  padding: var(--space-2xl);
  text-align: center;
}

/* ============================================================================
   CONTENT TYPOGRAPHY (rendered doc HTML)
   ========================================================================= */

.docs-content-inner h1 {
  font-size: 32px;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.docs-content-inner h2 {
  font-size: 22px;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(56, 189, 248, 0.1);
}

.docs-content-inner h3 {
  font-size: 17px;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.docs-content-inner h4 {
  font-size: 14px;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.docs-content-inner p {
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.docs-content-inner ul,
.docs-content-inner ol {
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
  color: var(--text-secondary);
}

.docs-content-inner li {
  margin-bottom: var(--space-xs);
}

.docs-content-inner pre {
  font-size: 12px;
  line-height: 1.6;
  margin: var(--space-md) 0;
  padding: var(--space-md);
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

.docs-content-inner pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 12px;
}

.docs-content-inner code {
  font-size: 0.9em;
}

.docs-content-inner table {
  font-size: 13px;
  margin: var(--space-md) 0;
}

.docs-content-inner blockquote {
  font-size: 13px;
}

.docs-content-inner img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.docs-content-inner strong {
  color: var(--text-primary);
  font-weight: 600;
}

.docs-content-inner a {
  color: var(--primary);
  text-decoration: none;
}

.docs-content-inner a:hover {
  text-decoration: underline;
}

/* ============================================================================
   RESPONSIVE
   ========================================================================= */

@media (max-width: 900px) {
  .sidebar-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
  }

  .docs-sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    width: 280px;
  }

  .docs-sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.4);
  }

  .docs-content {
    margin-left: 0;
  }

  .docs-content-inner {
    padding: var(--space-lg) var(--space-md) 80px;
  }
}