/* Base Variables */
:root {
    /* Color Scheme */
    --primary: #1e3a8a; /* Royal Blue */
    --secondary: #facc15; /* Gold */
    --accent: #ffffff; /* White */
    --text: #333333;
    --light-bg: #f9fafb;
    --border: #e5e7eb;
    --shadow: rgba(0, 0, 0, 0.08);
    --hover-shadow: rgba(0, 0, 0, 0.15);
    
    /* Typography */
    --font-primary: 'Arial', sans-serif;
    --heading-lg: clamp(1.75rem, 5vw, 3rem);
    --heading-md: clamp(1.5rem, 4vw, 2.5rem);
    --heading-sm: clamp(1.25rem, 3vw, 2rem);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 5rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-round: 50%;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container Widths */
    --container-sm: 800px;
    --container-md: 1000px;
    --container-lg: 1200px;
  }
  
  /* Theme Variations */
  [data-theme="royal"] {
    --primary: #1e3a8a;
    --secondary: #facc15;
    --accent: #ffffff;
    --text: #1a1a1a;
  }
    
  [data-theme="maroon"] {
    --primary: #800000;
    --secondary: #faebd7;
    --accent: #ffffff;
    --text: #333333;
  }
    
  [data-theme="forest"] {
    --primary: #2f4f4f;
    --secondary: #e8f0fe;
    --accent: #ffffff;
    --text: #2c3e50;
  }
  
  /* Reset & Base Styles */
  *,
  *::before,
  *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
    
  body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text);
    background-color: var(--light-bg);
    overflow-x: hidden;
  }
  
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  
  /* Utility Classes */
  .container {
    width: 100%;
    max-width: var(--container-lg);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
  }
  
  .text-center {
    text-align: center;
  }
  
  .section-spacing {
    padding: var(--spacing-lg) 0;
  }
  
  /* Section Headers */
  .section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
  }
  
  .section-header h2 {
    color: var(--primary);
    font-size: var(--heading-md);
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
  }
  
  .section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--secondary);
    border-radius: var(--radius-sm);
  }
  
  /* Hero Section */
  .hero {
    position: relative;
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    color: var(--primary);
    overflow: hidden;
  }
  
  .hero[data-theme="royal"] {
    background: linear-gradient(rgba(30, 58, 138, 0.9), rgba(30, 58, 138, 0.9)), url('/api/placeholder/1920/600');
    background-size: cover;
    background-position: center;
  }
  
  .hero[data-theme="maroon"] {
    background: linear-gradient(rgba(128, 0, 0, 0.9), rgba(128, 0, 0, 0.9)), url('/api/placeholder/1920/600');
    background-size: cover;
    background-position: center;
  }
  
  .hero[data-theme="forest"] {
    background: linear-gradient(rgba(47, 79, 79, 0.9), rgba(47, 79, 79, 0.9)), url('/api/placeholder/1920/600');
    background-size: cover;
    background-position: center;
    color: var(--text);
  }
  
  .hero-content {
    max-width: var(--container-sm);
    margin: 0 auto;
    position: relative;
    z-index: 1;
  }
  
  .hero h1 {
    font-size: var(--heading-lg);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
  }
  
  .hero p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }
  
  /* Timeline Section */
  .timeline-section {
    padding: var(--spacing-lg) var(--spacing-md);
    background-color: var(--light-bg);
  }
  
  .timeline {
    max-width: var(--container-md);
    margin: var(--spacing-lg) auto;
    position: relative;
  }
  
  .timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background-color: var(--primary);
    border-radius: var(--radius-sm);
  }
  
  .timeline-item {
    margin-bottom: var(--spacing-lg);
    position: relative;
    width: 50%;
    perspective: 1000px;
  }
  
  .timeline-item:nth-child(odd) {
    left: 0;
    padding-right: var(--spacing-lg);
  }
  
  .timeline-item:nth-child(even) {
    left: 50%;
    padding-left: var(--spacing-lg);
  }
  
  .timeline-date {
    position: absolute;
    top: 0;
    width: 80px;
    padding: var(--spacing-sm);
    background-color: var(--primary);
    color: var(--accent);
    text-align: center;
    border-radius: var(--radius-sm);
    font-weight: bold;
    box-shadow: 0 4px 6px var(--shadow);
    z-index: 1;
  }
  
  .timeline-item:nth-child(odd) .timeline-date {
    right: -40px;
  }
  
  .timeline-item:nth-child(even) .timeline-date {
    left: -40px;
  }
  
  .timeline-content {
    padding: var(--spacing-md);
    background-color: var(--accent);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px var(--shadow);
    transform-origin: center;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  }
  
  .timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px var(--hover-shadow);
  }
  
  .timeline-content h3 {
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
  }
  
  .timeline-content p {
    margin-bottom: var(--spacing-sm);
  }
  
  /* Founders Section */
  .founders-section {
    padding: var(--spacing-lg) var(--spacing-md);
    background-color: var(--accent);
  }
  
  .founders-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    max-width: var(--container-lg);
    margin: 0 auto;
  }
  
  .founder-card {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--light-bg);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px var(--shadow);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    overflow: hidden;
  }
  
  .founder-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px var(--hover-shadow);
  }
  
  .founder-card img {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-round);
    margin: 0 auto var(--spacing-md);
    border: 4px solid var(--primary);
    object-fit: cover;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  }
  
  .founder-card h3 {
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
  }
  
  .founder-position {
    color: var(--text);
    opacity: 0.8;
    margin-bottom: var(--spacing-sm);
    font-style: italic;
  }
  
  .founder-quote {
    font-style: italic;
    color: var(--text);
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-sm);
    position: relative;
  }
  
  .founder-quote::before {
    content: '"';
    font-size: 3rem;
    color: var(--primary);
    opacity: 0.2;
    position: absolute;
    top: -15px;
    left: 10px;
  }
  
  /* Milestones Section */
  .milestones-section {
    padding: var(--spacing-lg) var(--spacing-md);
    background-color: var(--secondary);
    position: relative;
    overflow: hidden;
  }
  
  .milestones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
    max-width: var(--container-lg);
    margin: 0 auto;
  }
  
  .milestone-card {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--accent);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px var(--shadow);
    transition: transform var(--transition-medium);
    position: relative;
    z-index: 1;
    overflow: hidden;
  }
  
  .milestone-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background-color: var(--primary);
    z-index: 1;
  }
  
  .milestone-card:hover {
    transform: translateY(-10px);
  }
  
  .milestone-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
  }
  
  .milestone-card h3 {
    font-size: var(--heading-sm);
    color: var(--primary);
    margin: var(--spacing-sm) 0;
  }
  
  .milestone-card p {
    color: var(--text);
  }
  
  /* Legacy Gallery */
  .legacy-gallery {
    padding: var(--spacing-lg) var(--spacing-md);
    background-color: var(--accent);
  }
  
  .gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
    max-width: var(--container-lg);
    margin: 0 auto;
  }
  
  .gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px var(--shadow);
    aspect-ratio: 4/3;
  }
  
  .gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-medium);
  }
  
  .gallery-item:hover img {
    transform: scale(1.08);
  }
  
  .gallery-item .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-sm);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: var(--accent);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-medium), transform var(--transition-medium);
  }
  
  .gallery-item:hover .overlay {
    opacity: 1;
    transform: translateY(0);
  }
  
  .gallery-item .overlay h3 {
    margin-bottom: var(--spacing-xs);
  }
  
  .gallery-item .overlay p {
    font-size: 0.9rem;
  }
  
  /* Animation Classes */
  .fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
  }
  
  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  .slide-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }
  
  .slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
  }
  
  .slide-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }
  
  .slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
  }
  
  .zoom-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }
  
  .zoom-in.visible {
    opacity: 1;
    transform: scale(1);
  }
  
  /* Responsive Design */
  @media (max-width: 992px) {
    :root {
      --spacing-lg: 3rem;
    }
    
    .founders-grid,
    .milestones-grid {
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
  }
  
  @media (max-width: 768px) {
    :root {
      --spacing-lg: 2.5rem;
    }
    
    .timeline::before {
      left: 30px;
    }
    
    .timeline-item {
      width: 100%;
      padding-left: 80px;
      padding-right: 0;
    }
    
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
      left: 0;
    }
    
    .timeline-date {
      left: 0 !important;
      width: 60px;
      font-size: 0.9rem;
    }
    
    .gallery-grid {
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
  }
  
  @media (max-width: 576px) {
    :root {
      --spacing-md: 1.5rem;
      --spacing-lg: 2rem;
    }
    
    .section-header h2 {
      font-size: 1.75rem;
    }
    
    .hero {
      padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .hero h1 {
      font-size: 1.75rem;
    }
    
    .founder-card {
      padding: var(--spacing-sm);
    }
    
    .founder-card img {
      width: 150px;
      height: 150px;
    }
    
    .timeline-section,
    .founders-section,
    .milestones-section,
    .legacy-gallery {
      padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .timeline-item {
      padding-left: 60px;
    }
    
    .timeline-date {
      width: 50px;
      padding: 5px;
      font-size: 0.8rem;
    }
    
    .gallery-grid {
      grid-template-columns: 1fr;
    }
  }
  
  /* Print Styles */
  @media print {
    body {
      font-size: 12pt;
      line-height: 1.5;
      color: #000;
      background: #fff;
    }
    
    h1, h2, h3, h4, h5, h6 {
      page-break-after: avoid;
      page-break-inside: avoid;
    }
    
    img {
      max-width: 100% !important;
      page-break-inside: avoid;
    }
    
    .hero {
      background: none !important;
      color: #000;
      padding: 20pt 0;
      text-align: left;
    }
    
    .timeline::before {
      display: none;
    }
    
    .timeline-item {
      width: 100%;
      padding: 0;
      margin-bottom: 15pt;
      page-break-inside: avoid;
    }
    
    .timeline-date {
      position: static;
      width: auto;
      background: none;
      color: #000;
      font-weight: bold;
      padding: 0;
      margin-bottom: 5pt;
      box-shadow: none;
    }
    
    .timeline-content,
    .founder-card,
    .milestone-card,
    .gallery-item {
      box-shadow: none;
      border: 1pt solid #ddd;
      page-break-inside: avoid;
    }
    
    .gallery-item .overlay {
      position: static;
      background: none;
      color: #000;
      opacity: 1;
    }
    
    .section-header h2::after {
      display: none;
    }
    
    .theme-switcher,
    .fade-in,
    .slide-in-left,
    .slide-in-right,
    .zoom-in {
      opacity: 1;
      transform: none;
    }
    
    a {
      text-decoration: underline;
      color: #000;
    }
    
    a::after {
      content: " (" attr(href) ")";
      font-size: 90%;
    }
  }