/* 
 * Documentation Website Stylesheet
 * Organized and optimized for readability and maintainability
 */

/* =============================================================================
 * CSS VARIABLES
 * ============================================================================= */

:root {
  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: Consolas, "Liberation Mono", Menlo, Courier, monospace;
  --font-size-base: 1.6rem;
  --line-height-base: 1.6;
  
  /* Spacing Scale */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Colors - Light Theme */
  --color-background: #ffffff;
  --color-text: #24292e;
  --color-heading: #2c3e50;
  --color-link: #1a73e8;
  --color-link-hover: #0d47a1;
  --color-accent: #2563eb;
  
  /* Surfaces - Light Theme */
  --surface-subtle: #f8f9fa;
  --surface-elevated: #ffffff;
  --surface-code: #f5f7f9;
  
  /* Borders - Light Theme */
  --border-color: #e9ecef;
  --border-color-subtle: #e3e8ee;
  --border-radius-sm: 3px;
  --border-radius-md: 6px;
  --border-radius-lg: 8px;
  --border-radius-xl: 12px;
  
  /* Shadows - Light Theme */
  --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 4px 18px rgba(0, 0, 0, 0.06);
  
  /* Component Specific - Light Theme */
  --nav-item-bg: rgba(255, 255, 255, 0.25);
  --nav-item-color: #1a1a1a;
  --nav-item-shadow: rgba(0, 0, 0, 0.1);
  --nav-item-hover-bg: rgba(255, 255, 255, 0.35);
  --nav-item-hover-shadow: rgba(0, 0, 0, 0.4);
  
  /* Notebook Specific - Light Theme */
  --notebook-bg: #f8fafc;
  --notebook-border: #e3e8ee;
  --notebook-fg: #1e293b;
  
  /* Code Highlighting - Light Theme */
  --syntax-keyword: #cf222e;
  --syntax-type: #8250df;
  --syntax-number: #0550ae;
  --syntax-string: #0a3069;
  --syntax-comment: #57606a;
  --syntax-function: #8250df;
  --syntax-operator: #0550ae;
  --syntax-preprocessor: #953800;
}

/* Dark theme overrides */
[data-theme="dark"] {
  /* Colors - Dark Theme */
  --color-background: #181f2a;
  --color-text: #e3eafe;
  --color-heading: #e0e0e0;
  --color-link: #7ea6ff;
  --color-link-hover: #a5c7ff;
  --color-accent: #60a5fa;
  
  /* Surfaces - Dark Theme */
  --surface-subtle: #1e1e1e;
  --surface-elevated: #232d3f;
  --surface-code: #1e1e1e;
  
  /* Borders - Dark Theme */
  --border-color: #404040;
  --border-color-subtle: #2d2d2d;
  
  /* Shadows - Dark Theme */
  --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 4px 18px rgba(0, 0, 0, 0.3);
  
  /* Component Specific - Dark Theme */
  --nav-item-bg: rgba(30, 30, 30, 0.6);
  --nav-item-color: #ffffff;
  --nav-item-shadow: rgba(0, 0, 0, 0.4);
  --nav-item-hover-bg: rgba(40, 40, 40, 0.8);
  --nav-item-hover-shadow: rgba(0, 0, 0, 0.6);
  
  /* Notebook Specific - Dark Theme */
  --notebook-bg: #181f2a;
  --notebook-border: #22304a;
  --notebook-fg: #e3eafe;
  
  /* Code Highlighting - Dark Theme */
  --syntax-keyword: #569cd6;
  --syntax-type: #4ec9b0;
  --syntax-number: #b5cea8;
  --syntax-string: #ce9178;
  --syntax-comment: #6a9955;
  --syntax-function: #dcdcaa;
  --syntax-operator: #d4d4d4;
  --syntax-preprocessor: #c586c0;
}

/* =============================================================================
 * BASE STYLES
 * ============================================================================= */

/* Reset and Base */
body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  padding: 0;
}

/* Typography Base */
code, pre {
  font-family: var(--font-mono);
}

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

/* Main Content Container */
main.content {
  padding-top: 100px; /* Account for fixed header */
}

.page-content {
  padding: var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto var(--spacing-2xl) auto;
}

/* Light mode page styling */
:root:not([data-theme="dark"]) .page-content {
  background-color: var(--surface-elevated);
  background-image: linear-gradient(to bottom, rgba(248, 249, 250, 0.5) 1px, transparent 1px);
  background-size: 100% 32px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2.5rem;
}

/* Dark mode page styling */
[data-theme="dark"] .page-content {
  background-color: var(--color-background);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  border-radius: var(--border-radius-lg);
}

/* =============================================================================
 * TYPOGRAPHY
 * ============================================================================= */

/* Headings */
.page-content h1 {
  margin-top: 0;
  padding-top: var(--spacing-md);
  font-size: 2.8rem;
  color: var(--color-heading);
  border-bottom: 2px solid var(--border-color);
  padding-bottom: var(--spacing-sm);
}

.page-content h2 {
  margin-top: var(--spacing-xl);
  font-size: 2.4rem;
  color: var(--color-heading);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.3rem;
  text-shadow: none;
}

.page-content h3 {
  margin-top: var(--spacing-lg);
  font-size: 2rem;
  color: var(--color-heading);
}

/* =============================================================================
 * COMPONENTS
 * ============================================================================= */

/* Documentation Link Button */
.doc-link-button {
  display: block;
  width: 100%;
  background: #fff;
  color: #1a237e;
  font-size: 1.18rem;
  font-weight: 600;
  padding: 1.1em 1.6em 1.1em 3.6em;
  border: 1.5px solid #e5e7eb;
  border-radius: 14px;
  box-shadow: 0 2px 10px rgba(26, 47, 126, 0.06), 0 1.5px 6px rgba(26, 115, 232, 0.04);
  text-align: left;
  text-decoration: none;
  transition: box-shadow 0.2s, border-color 0.2s, background 0.2s, color 0.2s;
  position: relative;
  cursor: pointer;
  margin-top: 0.5em;
}

.doc-link-button::before {
  content: "\1F4C4"; /* 📄 document icon */
  position: absolute;
  left: 1.1em;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4em;
  opacity: 0.83;
}

.doc-link-button:hover, 
.doc-link-button:focus {
  background: #f3f6fb;
  border-color: #b6c5e1;
  color: #174ea6;
  box-shadow: 0 4px 18px rgba(26, 115, 232, 0.13);
  outline: none;
}

.doc-link-button:active {
  background: #e3eaf6;
  border-color: #90a4c8;
  color: #0d47a1;
}

/* =============================================================================
 * CODE BLOCKS
 * ============================================================================= */

/* Base code block container */
.sourceCode,
div.sourceCode,
pre.sourceCode,
.sourceCode pre,
.markdown-body .sourceCode pre,
.markdown-body pre.sourceCode,
pre code.sourceCode {
  background-color: var(--surface-code);
  color: var(--color-text);
  border: 1px solid var(--border-color-subtle);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  overflow-x: auto;
  line-height: 1.4;
  box-shadow: var(--shadow-sm);
}

/* Code within blocks */
.sourceCode code,
pre.sourceCode code,
pre code.sourceCode,
div.sourceCode code {
  background-color: transparent;
  color: inherit;
  border: none;
  padding: 0;
  font-size: 0.9em;
}

/* Inline code */
:not(pre) > code {
  background-color: rgba(175, 184, 193, 0.2);
  color: #0550ae;
  padding: 0.2em 0.4em;
  border-radius: var(--border-radius-sm);
  font-size: 0.85em;
  font-weight: 500;
}

/* Syntax Highlighting */
.sourceCode .kw { color: var(--syntax-keyword); }
.sourceCode .dt { color: var(--syntax-type); }
.sourceCode .dv, 
.sourceCode .bn, 
.sourceCode .fl { color: var(--syntax-number); }
.sourceCode .ch, 
.sourceCode .st { color: var(--syntax-string); }
.sourceCode .co { color: var(--syntax-comment); font-style: italic; }
.sourceCode .fu { color: var(--syntax-function); }
.sourceCode .im { color: var(--syntax-number); }
.sourceCode .op { color: var(--syntax-operator); }
.sourceCode .cf { color: var(--syntax-keyword); }
.sourceCode .pp { color: var(--syntax-preprocessor); }

/* Copy Button */
.code-block-container {
  position: relative;
}

.copy-button {
  position: absolute;
  top: 5px;
  right: 5px;
  padding: 3px 8px;
  background-color: #f8f8f8;
  border: 1px solid #e1e4e8;
  border-radius: var(--border-radius-sm);
  font-size: 12px;
  cursor: pointer;
  z-index: 10;
}

.copy-button:hover {
  background-color: #e6e6e6;
}

.copy-button.copied {
  background-color: #28a745;
  color: white;
}

/* =============================================================================
 * NAVIGATION
 * ============================================================================= */

/* Header Logo */
.s-header__logo {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

/* Documentation Button in Header */
.documentation-button {
  display: flex;
  align-items: center;
  background: var(--nav-item-bg);
  color: var(--nav-item-color);
  padding: 0.8rem 1.6rem;
  height: 40px;
  border-radius: 5px;
  margin-left: var(--spacing-md);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all 0.3s ease;
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 10px var(--nav-item-shadow);
}

.documentation-button i {
  margin-right: var(--spacing-sm);
  font-size: 1.2rem;
}

.documentation-button span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px;
}

.documentation-button:hover {
  background: var(--nav-item-hover-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--nav-item-hover-shadow);
}

/* =============================================================================
 * REPOSITORY STRUCTURE SITEMAP
 * ============================================================================= */

.repository-structure {
  font-family: var(--font-mono);
  line-height: 1.5;
  margin: 30px 0;
  padding: 20px;
  background-color: var(--surface-subtle);
  border: 1px solid #e1e4e8;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
}

.repository-structure ul,
.repository-structure ol {
  list-style-type: none;
  padding-left: 0;
  margin: 0;
}

.repository-structure li {
  position: relative;
  padding: 2px 0 2px 24px;
  margin: 4px 0;
  color: var(--color-text);
}

.repository-structure li::before {
  content: "├── ";
  color: #6a737d;
  position: absolute;
  left: 0;
}

.repository-structure li:last-child::before {
  content: "└── ";
}

.repository-structure li li {
  padding-left: 40px;
}

.repository-structure li li::before {
  left: 16px;
}

.repository-structure li > strong {
  color: #0366d6;
  font-weight: bold;
}

.repository-structure li li > strong {
  color: var(--color-text);
  font-weight: bold;
}

.repository-structure a {
  text-decoration: none;
  color: inherit;
}

.repository-structure a:hover {
  text-decoration: underline;
}

/* =============================================================================
 * JUPYTER NOTEBOOK
 * ============================================================================= */

/* Notebook Container */
.jupyter-notebook-embed,
.notebook-preview {
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-xl);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  background-color: var(--notebook-bg);
  border: 1.5px solid var(--notebook-border);
  color: var(--notebook-fg);
}

.jupyter-notebook-embed h2,
.notebook-preview h3 {
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.01em;
  margin-top: 0.5em;
  text-shadow: none;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5em;
}

/* Notebook Action Buttons Container */
.notebook-action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: var(--spacing-lg) 0 var(--spacing-md) 0;
}

/* Base Button Style */
.notebook-btn,
.download-btn,
.view-btn,
.colab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  font-size: 15px;
  border: none;
  cursor: pointer;
}

/* Button Variants */
.download-btn {
  background: linear-gradient(90deg, #2563eb 60%, #3b82f6 100%);
  color: #fff;
}

.download-btn i { 
  color: #e0eaff; 
}

.download-btn:hover, 
.download-btn:focus {
  background: #174ea6;
  color: #fff;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.13);
}

.view-btn {
  background: linear-gradient(90deg, #7c3aed 60%, #a78bfa 100%);
  color: #fff;
}

.view-btn i { 
  color: #ede9fe; 
}

.view-btn:hover, 
.view-btn:focus {
  background: #5b21b6;
  color: #fff;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.13);
}

.colab-btn {
  background: linear-gradient(90deg, #059669 60%, #34d399 100%);
  color: #fff;
}

.colab-btn i { 
  color: #d1fae5; 
}

.colab-btn:hover, 
.colab-btn:focus {
  background: #047857;
  color: #fff;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.13);
}

/* Notebook Preview Section */
.notebook-preview {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md);
  background-color: #f8fafc;
  border-radius: var(--border-radius-md);
}

.notebook-preview h3 {
  color: #1e293b;
  margin-top: 0.75em;
  margin-bottom: 0.5em;
  font-size: 1.25em;
}

.notebook-preview ul {
  margin-left: var(--spacing-lg);
  padding-left: 0;
}

.notebook-preview ul li {
  margin-bottom: var(--spacing-sm);
}

/* Notebook Tip */
.notebook-tip {
  margin-top: var(--spacing-lg);
  padding: 0.75em 1em;
  background-color: #ecfdf5;
  border-left: 4px solid #10b981;
  border-radius: 4px;
  font-size: 0.95em;
}

.notebook-tip p {
  margin: 0;
}

.notebook-tip strong {
  color: #047857;
}

/* Notebook Code Blocks */
.jupyter-notebook-embed .highlight,
.notebook-preview .highlight,
.highlight.hl-ipython3 {
  background-color: var(--surface-code);
  color: var(--color-text);
  border: 1px solid var(--border-color-subtle);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  margin: 0;
  overflow-x: auto;
  line-height: 1.4;
  box-shadow: var(--shadow-sm);
}

.highlight pre,
.highlight.hl-ipython3 pre {
  background-color: transparent;
  color: inherit;
  border: none;
  padding: 0;
  margin: 0;
  box-shadow: none;
}

/* Notebook Syntax Highlighting */
.highlight.hl-ipython3 .kn { color: var(--syntax-keyword); }
.highlight.hl-ipython3 .nn { color: var(--syntax-type); }
.highlight.hl-ipython3 .k { color: var(--syntax-keyword); }
.highlight.hl-ipython3 .n { color: var(--color-text); }
.highlight.hl-ipython3 .w { color: var(--color-text); }
.highlight.hl-ipython3 .c1 { color: var(--syntax-comment); font-style: italic; }
.highlight.hl-ipython3 .sd { color: var(--syntax-string); }
.highlight.hl-ipython3 .s1 { color: var(--syntax-string); }
.highlight.hl-ipython3 .nf { color: var(--syntax-function); }
.highlight.hl-ipython3 .p { color: var(--color-text); }
.highlight.hl-ipython3 .mi { color: var(--syntax-number); }
.highlight.hl-ipython3 .mf { color: var(--syntax-number); }
.highlight.hl-ipython3 .o { color: var(--syntax-operator); }

/* =============================================================================
 * FILE ICONS AND TABLES
 * ============================================================================= */

/* File Icons */
.file-icon {
  width: 24px;
  text-align: center;
}

.file-icon .file-c::before {
  content: "C";
  background-color: #555555;
  color: white;
  font-weight: bold;
  padding: 1px 4px;
  border-radius: var(--border-radius-sm);
  font-size: 0.85em;
}

.file-icon .file-python::before {
  content: "py";
  background-color: #3776ab;
  color: white;
  font-weight: bold;
  padding: 1px 4px;
  border-radius: var(--border-radius-sm);
  font-size: 0.85em;
}

.file-icon .file-jupyter::before {
  content: "nb";
  background-color: #F37626;
  color: white;
  font-weight: bold;
  padding: 1px 4px;
  border-radius: var(--border-radius-sm);
  font-size: 0.85em;
}

/* Documentation Tables */
.documentation-files {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-md) 0;
}

.documentation-files td {
  padding: 0.75em;
  border-bottom: 1px solid #e1e4e8;
  vertical-align: top;
}

.documentation-files tr:last-child td {
  border-bottom: none;
}

.documentation-files .file-desc {
  color: #57606a;
  font-size: 0.9em;
}

/* =============================================================================
 * DARK MODE OVERRIDES
 * All dark mode specific styles consolidated here
 * ============================================================================= */

[data-theme="dark"] {
  /* Inline Code */
  :not(pre) > code {
    background-color: #2d2d2d;
    color: #e0e0e0;
  }
  
  /* Navigation */
  .s-header__nav-list a,
  .s-header__nav-list a:visited,
  .s-header__nav-list a:link {
    color: #ffffff;
  }
  
  .s-header__nav-list a:hover {
    color: #ffffff;
    background: var(--nav-item-hover-bg);
  }
  
  /* Doc Link Button */
  .doc-link-button {
    background: #1b2330;
    color: #e3eafe;
    border: 1.5px solid #334155;
    box-shadow: 0 2px 10px rgba(45, 114, 233, 0.10);
  }
  
  .doc-link-button::before {
    color: #7ea6ff;
  }
  
  .doc-link-button:hover, 
  .doc-link-button:focus {
    background: #232d3f;
    border-color: #4462a6;
    color: #a5c7ff;
    box-shadow: 0 4px 18px rgba(45, 114, 233, 0.22);
  }
  
  .doc-link-button:active {
    background: #16203a;
    border-color: #233a6a;
    color: #7ea6ff;
  }
  
  /* Copy Button */
  .copy-button {
    background-color: #2d2d2d;
    border-color: #404040;
    color: #e0e0e0;
  }
  
  .copy-button:hover {
    background-color: #404040;
  }
  
  /* Repository Structure */
  .repository-structure {
    border-color: #2d2d2d;
  }
  
  .repository-structure li::before {
    color: #8b949e;
  }
  
  .repository-structure li > strong {
    color: #58a6ff;
  }
  
  /* Documentation Tables */
  .documentation-files td {
    border-color: #2d2d2d;
  }
  
  .documentation-files .file-desc {
    color: #8b949e;
  }
  
  /* Notebook Styles */
  .notebook-btn {
    color: #ffffff !important;
  }
  
  .notebook-action-buttons a,
  .notebook-action-buttons .notebook-btn {
    color: #ffffff !important;
    text-decoration: none !important;
  }
  
  .notebook-action-buttons a:hover,
  .notebook-action-buttons a:focus,
  .notebook-action-buttons a:visited,
  .notebook-action-buttons a:active {
    color: #ffffff !important;
  }
  
  .notebook-preview .notebook-btn,
  .jupyter-notebook-embed .notebook-btn {
    color: #ffffff !important;
    -webkit-text-fill-color: #ffffff !important;
  }
  
  .notebook-preview,
  .jupyter-notebook-embed {
    background-color: #1e1e2d;
    color: #e3eafe;
    border: 1.5px solid #2d3a53;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  }
  
  .notebook-preview > *:not(.notebook-tip):not(h3):not(.notebook-action-buttons) {
    background: #232d3f;
    color: #e3eafe;
    border-radius: var(--border-radius-lg);
    border: 1.5px solid #2d3a53;
    margin-bottom: 1.2em;
    box-shadow: 0 1px 8px 0 rgba(35, 43, 58, 0.27);
    padding: 1em 1.5em;
  }
  
  .notebook-preview h3,
  .jupyter-notebook-embed h2 {
    color: #ffffff;
    text-shadow: 0 2px 8px rgba(59, 130, 246, 0.13);
    font-weight: 700;
    letter-spacing: 0.01em;
    border-bottom: 1px solid #3b4a63;
  }
  
  .notebook-preview strong,
  .notebook-preview b {
    color: #ffffff;
    font-weight: 700;
  }
  
  /* Notebook Buttons Dark Mode */
  .notebook-btn {
    color: #ffffff;
    font-weight: 700;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.5);
  }
  
  .download-btn {
    background: linear-gradient(90deg, #2563eb 0%, #3b82f6 100%);
    color: #ffffff !important;
    border: 1.5px solid #3b82f6;
    box-shadow: 0 2px 10px 0 rgba(37, 99, 235, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
  }
  
  .download-btn span, 
  .download-btn i { 
    color: #ffffff !important;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
  }
  
  .download-btn:hover, 
  .download-btn:focus {
    background: linear-gradient(90deg, #3b82f6 0%, #2563eb 100%);
    color: #fff;
    border-color: #60a5fa;
    box-shadow: 0 4px 20px 0 rgba(37, 99, 235, 0.33);
  }
  
  .view-btn {
    background: linear-gradient(90deg, #7c3aed 0%, #a78bfa 100%);
    color: #ffffff !important;
    border: 1.5px solid #a78bfa;
    box-shadow: 0 2px 10px 0 rgba(124, 58, 237, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
  }
  
  .view-btn span, 
  .view-btn i { 
    color: #ffffff !important;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
  }
  
  .view-btn:hover, 
  .view-btn:focus {
    background: linear-gradient(90deg, #a78bfa 0%, #7c3aed 100%);
    color: #fff;
    border-color: #c4b5fd;
    box-shadow: 0 4px 20px 0 rgba(124, 58, 237, 0.33);
  }
  
  .colab-btn {
    background: linear-gradient(90deg, #047857 0%, #10b981 100%);
    color: #ffffff !important;
    border: 2px solid #34d399;
    box-shadow: 0 2px 10px 0 rgba(5, 150, 105, 0.4);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
  }
  
  .colab-btn span, 
  .colab-btn i { 
    color: #ffffff !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
  }
  
  .colab-btn:hover, 
  .colab-btn:focus {
    background: linear-gradient(90deg, #10b981 0%, #047857 100%);
    color: #fff;
    border-color: #6ee7b7;
    box-shadow: 0 4px 20px 0 rgba(5, 150, 105, 0.5);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.9);
  }
  
  .notebook-tip {
    background: #193c34;
    border-left: 4px solid #10b981;
    color: #d1fae5;
  }
  
  .notebook-tip strong {
    color: #6ee7b7;
  }
  
  /* Notebook iFrame */
  .embedded-notebook iframe {
    background-color: #181f2a;
    border: 1px solid #2d3a53;
  }
  
  /* Error Messages */
  .notebook-error-message {
    background-color: #1e1e2d;
    border-color: #2d3a53;
    color: #e3eafe;
  }
  
  .notebook-error-message i {
    color: #f87171;
  }
  
  .notebook-error-message h4 {
    color: #f9fafb;
  }
  
  /* Dark mode syntax overrides */
  .sourceCode .im { color: #7ccdfd; }
}