/* Theme variables */
:root {
    /* Light theme colors - DHL branded */
    --primary: #D40511;
    --primary-light: #FF1A1A;
    --bg-primary: #ffffff;
    --bg-secondary: #FFED00;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #FFD100;
    --card-bg: #ffffff;
    
    /* Dimensions */
    --header-height: 64px;
    --sidebar-width: 300px;
}
  
[data-theme="dark"] {
    --primary: #FF1A1A;
    --primary-light: #FF4D4D;
    --bg-primary: #1e293b;
    --bg-secondary: #2d3748;
    --text-primary: #f8fafc;
    --text-secondary: #FFED00;
    --border-color: #D40511;
    --card-bg: #2d3748;
}
  
  /* Base styles */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Lato', system-ui, -apple-system, sans-serif;
    font-weight: 300;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
  }
  
  /* Header styles */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 2rem;
    z-index: 100;
  }
  
  .header-left, .header-right {
    flex: 1;
  }
  
  .header-center {
    flex: 2;
    display: flex;
    justify-content: center;
  }
  
  .logo {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  
  .logo-text {
    font-weight: 400;
    color: var(--text-primary);
    text-decoration: none;
  }
  
  /* Search styles */
  .search-container {
    width: 100%;
    max-width: 600px;
    position: relative;
  }
  
  .search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
  }
  
  .search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(116, 73, 248, 0.1);
  }
  
  /* Theme toggle */
  .theme-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: 8px;
    cursor: pointer;
  }
  
  .theme-toggle:hover {
    background-color: var(--bg-secondary);
  }
  
  /* Project overview */
  .project-overview {
    margin-bottom: 3rem;
  }
  
  .project-overview h1 {
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--primary);
    margin-bottom: 1rem;
  }
  
  .project-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
  }
  
  .metadata-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
  }
  
  .metadata-item {
    background-color: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
  }
  
  .metadata-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
  }
  
  .metadata-value {
    font-weight: 500;
    color: var(--text-primary);
  }
  
  /* Tabs */
  .tabs-container {
    margin-top: 2rem;
  }
  
  .tabs {
    display: flex;
    gap: 1rem;
    padding: 0 1rem;
    margin-bottom: 2rem;
  }
  
  .tab {
    padding: 0.75rem 1.5rem;
    background: none;
    border: none;
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
  }
  
  .tab:hover {
    background-color: var(--bg-secondary);
  }
  
  .tab.active {
    background-color: var(--bg-secondary);
    color: var(--primary);
  }
  
  /* Tab content */
  .tab-pane {
    display: none;
  }
  
  .tab-pane.active {
    display: block;
  }
  
  /* Features grid */
  .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
  }
  
  .feature-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
  }
  
  .feature-card h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-weight: 500;
  }
  
  /* Architecture section */
  .architecture-content {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .components-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
  }
  
  .component-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
  }
  
  /* Dependencies grid */
  .dependencies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
  }
  
  .dependency-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
  }
  
  .dependency-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
  }
  
  .dependency-type {
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-secondary);
    border-radius: 999px;
    font-size: 0.75rem;
    color: var(--primary);
  }
  
  /* Footer */
  .site-footer {
    text-align: center;
    padding: 2rem;
    margin-top: 4rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
  }

  .site-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
  }
  
  .site-footer a:hover {
    text-decoration: underline;
  }
  
  /* Sidebar styles */
  .sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background-color: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    transition: transform 0.3s ease;
  }
  
  .sidebar-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
  }

  .sidebar-header a {
    text-decoration: none;
    color: var(--primary)
  }
  
  .sidebar-header a:hover {
    text-decoration: none;
    color: var(--primary-light)
  }
  
  .sidebar-header h1 {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 0.5rem;
  }
  
  .sidebar-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
  }
  
  .sidebar-content {
    padding: 1.5rem;
  }
  
  .file-group {
    margin-bottom: 2rem;
  }
  
  .file-group h3 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
  }
  
  .file-group ul {
    list-style: none;
    padding: 0;
  }
  
  .file-group li {
    margin-bottom: 0.5rem;
  }
  
  .file-group a {
    display: block;
    padding: 0.5rem;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.875rem;
    border-radius: 6px;
    transition: all 0.2s;
  }
  
  .file-group a:hover {
    background-color: var(--bg-secondary);
    color: var(--primary);
  }
  
  /* Main content layout */
  .main-content {
    margin-left: var(--sidebar-width);
    padding: calc(var(--header-height) + 2rem) 2rem 2rem;
    max-width: 1200px;
    margin-right: auto;
  }
  
  /* Search results styles */
  .search-results {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    max-height: 400px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
  }
  
  .search-active .search-results {
    display: block;
  }
  
  .search-result-item {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.2s;
  }
  
  .search-result-item:hover {
    background-color: var(--bg-secondary);
  }
  
  .result-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
  }
  
  .result-type {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background-color: var(--bg-secondary);
    color: var(--primary);
    border-radius: 999px;
  }
  
  .result-excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
  }
  
  .result-file {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-family: 'Ubuntu Mono', monospace;
  }
  
  /* Code blocks */
  code {
    font-family: 'Ubuntu Mono', monospace;
    background-color: var(--bg-secondary);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-size: 0.875em;
    color: var(--primary);
  }
  
  pre {
    background-color: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1rem 0;
  }
  
  pre code {
    background: none;
    padding: 0;
    border-radius: 0;
  }
  
  /* Responsive design */
  @media (max-width: 1024px) {
    .features-grid,
    .components-grid,
    .dependencies-grid {
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
  }
  
  @media (max-width: 768px) {
    :root {
      --sidebar-width: 240px;
    }
  
    .main-content {
      padding: calc(var(--header-height) + 1rem) 1rem 1rem;
    }
  
    .header-left .logo-text {
      display: none;
    }
  }
  
  @media (max-width: 640px) {
    .sidebar {
      transform: translateX(-100%);
    }
  
    .sidebar.active {
      transform: translateX(0);
    }
  
    .main-content {
      margin-left: 0;
    }
  
    .site-header {
      padding: 0 1rem;
    }
  
    .metadata-grid {
      grid-template-columns: 1fr;
    }
  
    .tabs {
      padding: 0;
      gap: 0.5rem;
    }
  
    .tab {
      padding: 0.5rem 1rem;
    }
  }
  
  /* Utility classes */
  .hidden {
    display: none !important;
  }
  
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  
  /* Animation classes */
  .fade-in {
    animation: fadeIn 0.3s ease-in-out;
  }
  
  @keyframes fadeIn {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }
  
  /* Print styles */
  @media print {
    .sidebar,
    .site-header,
    .tabs {
      display: none;
    }
  
    .main-content {
      margin: 0;
      padding: 0;
    }
  
    .tab-pane {
      display: block !important;
      page-break-after: always;
    }
  }

  /* Breadcrumb navigation */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.breadcrumbs a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumbs a:hover {
    color: var(--primary-light);
}

.breadcrumbs .separator {
    color: var(--text-secondary);
}

.breadcrumbs .current {
    color: var(--text-secondary);
}

/* File navigation in sidebar */
.file-navigation {
    padding: 0.5rem;
}

.nav-section {
    margin-bottom: 2rem;
}

.nav-section h3 {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    padding: 0 0.75rem;
    margin-bottom: 0.75rem;
}

.nav-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-section li {
    margin-bottom: 0.25rem;
}

.nav-section a {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.875rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.nav-section a:hover {
    background-color: var(--bg-secondary);
    color: var(--primary);
}

.nav-section a.active {
    background-color: var(--bg-secondary);
    color: var(--primary);
    font-weight: 500;
}

/* Dependencies list */
.dependencies-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.dependency-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background-color: var(--bg-secondary);
    border-radius: 6px;
}

.dependency-name {
    color: var(--primary);
    font-family: 'Ubuntu Mono', monospace;
}

.dependency-type {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background-color: var(--bg-primary);
    border-radius: 999px;
    color: var(--text-secondary);
}

/* Element cards */
.element-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: border-color 0.2s;
}

.element-card:hover {
    border-color: var(--primary);
}

.element-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.element-name {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.element-name code {
    font-size: 1.125rem;
    color: var(--primary);
    background: none;
    padding: 0;
}

.scope-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background-color: var(--bg-secondary);
    border-radius: 999px;
    color: var(--text-secondary);
}

.line-number {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* External badge for dependencies */
.external {
    font-size: 0.75rem;
    padding: 0.125rem 0.375rem;
    background-color: var(--bg-secondary);
    border-radius: 4px;
    color: var(--text-secondary);
    vertical-align: middle;
    margin-left: 0.5rem;
}

/* Section headings */
.code-elements h2,
.file-dependencies h2,
.dependency-visualization h2 {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-primary);
    margin: 2rem 0 1rem;
}

.element-group h3 {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--primary);
    margin: 1.5rem 0 1rem;
}

/* Ensure code links are properly styled */
a[href^="src/"],
a[href^="../src/"] {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

a[href^="src/"]:hover,
a[href^="../src/"]:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

/* File path at the top */
.file-path {
    font-family: 'Ubuntu Mono', monospace;
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.file-path a {
    color: var(--primary);
    text-decoration: none;
}

.file-path a:hover {
    text-decoration: underline;
}

.dependency-graph {
    background-color: rgba(230, 220, 255, 0.8);
    border-radius: 20px;
}

/* Feature status badges */
.feature-status {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-weight: 500;
}

.feature-status.implemented {
    background-color: #dcfce7;
    color: #166534;
}

.feature-status.planned {
    background-color: #dbeafe;
    color: #1e40af;
}

.feature-status.in.progress {
    background-color: #fef9c3;
    color: #854d0e;
}

.feature-category {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Tech stack and patterns */
.tech-section {
    margin-bottom: 3rem;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.tech-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.features-used {
    margin-top: 1rem;
    font-size: 0.875rem;
}

.features-used ul {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0 0;
}

.features-used li {
    display: inline-block;
    margin: 0.25rem;
    padding: 0.25rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: 999px;
    font-size: 0.75rem;
}

.example-location {
    display: block;
    margin-top: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-family: 'Ubuntu Mono', monospace;
}

/* Markdown content styling */
.markdown-content {
    line-height: 1.6;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}

.markdown-content p {
    margin-bottom: 1em;
}

.markdown-content ul,
.markdown-content ol {
    margin: 1em 0;
    padding-left: 2em;
}

.markdown-content li {
    margin-bottom: 0.5em;
}

.markdown-content code {
    font-family: 'Ubuntu Mono', monospace;
    padding: 0.2em 0.4em;
    background-color: var(--bg-secondary);
    border-radius: 4px;
}

.markdown-content pre {
    padding: 1em;
    overflow-x: auto;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    margin: 1em 0;
}

.markdown-content pre code {
    padding: 0;
    background-color: transparent;
}

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

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