:root {
    --primary-color: #c187d1;
    --secondary-color: #007bff;
    --bg-color: #f9f9fb;
    --light-bg: #ffffff;
    --text-color: #333;
  }
  
  /* Global Styles */
  body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    box-sizing: border-box;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: inherit;
  }
  
  /* Header Styling */
  header {
    background-color: var(--light-bg);
    color: var(--primary-color);
    padding: 30px 20px;
    text-align: center;
    border-bottom: 2px solid var(--primary-color);
  }
  
  header h1 {
    font-size: 2.8rem;
    margin-bottom: 0;
  }
  
  /* Main Content */
  main {
    max-width: 1200px;
    margin: 40px auto;
    padding: 30px;
    background-color: var(--light-bg);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  }
  
  section {
    margin-bottom: 50px;
  }
  
  .section-header {
    margin-bottom: 20px;
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 10px;
  }
  
  .section-header h2 {
    font-size: 1.8rem;
    color: var(--text-color);
  }
  
  /* Grid System */
  .grid {
    display: grid;
    gap: 20px;
  }
  
  .grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  @media (max-width: 768px) {
    .grid-cols-2,
    .grid-cols-3 {
      grid-template-columns: 1fr;
    }
  }
  
  /* List Styling */
  ul {
    list-style: none;
    padding: 0;
  }
  
  li {
    padding: 8px 0;
  }
  
  /* Improved "Temas de Enfoque" Lists */
  .temas-list {
    background-color: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  }
  
  .temas-list li {
    margin: 10px 0;
    padding-left: 25px;
    position: relative;
    line-height: 1.5;
    font-size: 1rem;
  }
  
  .temas-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    font-size: 1rem;
  }
  
  /* Centros Participantes List Styling */
  .centros-list {
    background-color: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    margin-top: 20px;
  }
  
  .centros-list li {
    margin: 10px 0;
    padding-left: 30px;
    position: relative;
    font-size: 1rem;
    line-height: 1.5;
  }
  
  .centros-list li::before {
    content: "🏫";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    font-size: 1rem;
  }
  
  /* Gallery */
  .gallery {
    margin: 20px auto;
    width: 100%;
  }
  
  .gallery-page {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
  }
  
  .gallery-page.active {
    display: grid;
  }
  
  /* Gallery Items */
  /* Shared styles for images and videos */
  .gallery-item img,
  .gallery-item video {
    width: 100%;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
  }
  
  /* Gallery Items - Images: fixed height */
  .gallery-item img {
    height: 200px;
  }
  
  /* Gallery Items - Videos: use aspect ratio (16:9) and display entire content */
  .gallery-item video {
    aspect-ratio: 16 / 9;
    object-fit: contain;
  }
  
  .gallery-item img:hover,
  .gallery-item video:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  }
  
  /* Modal Styles */
  .modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.3s ease;
  }
  
  .modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
  }
  
  .modal-content img {
    width: 100%;
    height: auto;
    border-radius: 8px;
  }
  
  .modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--light-bg);
    color: var(--text-color);
    border: none;
    font-size: 18px;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
  }
  
  .modal-close:hover {
    background-color: #f0f0f0;
  }
  
  /* Gallery Navigation */
  .gallery-navigation {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 20px 0;
  }
  
  .gallery-navigation button {
    padding: 12px 25px;
    font-size: 16px;
    cursor: pointer;
    background-color: var(--secondary-color);
    color: #fff;
    border: none;
    border-radius: 5px;
    transition: background-color 0.3s ease, transform 0.2s ease;
  }
  
  .gallery-navigation button:hover {
    background-color: #0056b3;
    transform: scale(1.05);
  }
  
  .gallery-navigation button:active {
    background-color: #003f7f;
    transform: scale(0.95);
  }
  
  /* Accessibility Improvements */
  button {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
  }
  
  button:focus {
    outline: 2px dashed var(--secondary-color);
    outline-offset: 4px;
  }