body {
      margin: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background: #333333;
      color: white;
      line-height: 1.6;
    }

    .container {
      padding: 2rem;
      max-width: 900px;
      margin: auto;
    }

    .article {
      padding: 2rem;
      max-width: 800px;
      margin: auto;
    }

    .article h1 {
      font-size: 3rem;
      color: #96f3f5;
      text-align: center;
      margin-bottom: 0.5rem;
      text-shadow: 0 2px 10px rgba(150, 243, 245, 0.3);
    }

    .subtitle {
      text-align: center;
      font-size: 1.2rem;
      color: #aaa;
      margin-bottom: 1rem;
      font-style: italic;
    }

    .date {
      color: #aaa;
      margin-bottom: 2rem;
      text-align: center;
      font-size: 0.9rem;
    }

    .hero-image {
      width: 100%;
      height: 300px;
      object-fit: cover;
      border-radius: 10px;
      margin: 2rem 0;
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    }

    .c-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-radius: 10px;
      margin: 2rem 0;
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    }

    .toc {
      background: rgba(150, 243, 245, 0.1);
      border: 1px solid #96f3f5;
      border-radius: 10px;
      padding: 1.5rem;
      margin: 2rem 0;
    }

    .toc h2 {
      color: #96f3f5;
      margin-top: 0;
      font-size: 1.3rem;
    }

    .toc ul {
      list-style: none;
      padding: 0;
    }

    .toc li {
      margin: 0.5rem 0;
    }

    .toc a {
      color: #96f3f5;
      text-decoration: none;
      transition: all 0.3s ease;
      padding: 0.2rem 0;
      display: block;
    }

    .toc a:hover {
      text-shadow: 0 0 8px #96f3f5;
      padding-left: 10px;
    }

    .content {
      font-size: 1.1rem;
      line-height: 1.8;
      margin: 2rem 0;
    }

    .content h2 {
      color: #96f3f5;
      font-size: 1.8rem;
      margin-top: 3rem;
      margin-bottom: 1rem;
      border-bottom: 2px solid #96f3f5;
      padding-bottom: 0.5rem;
    }

    .content h3 {
      color: #96f3f5;
      font-size: 1.4rem;
      margin-top: 2rem;
      margin-bottom: 0.8rem;
    }

    .fun-fact {
      background: linear-gradient(135deg, rgba(150, 243, 245, 0.1), rgba(150, 243, 245, 0.05));
      border-left: 4px solid #96f3f5;
      padding: 1rem 1.5rem;
      margin: 1.5rem 0;
      border-radius: 0 8px 8px 0;
      position: relative;
    }

    .fun-fact::before {
      content: "";
      position: absolute;
      top: -10px;
      left: -10px;
      background: #333333;
      padding: 5px;
      border-radius: 50%;
      font-size: 1.2rem;
    }

    .fun-fact h4 {
      color: #96f3f5;
      margin-top: 0;
      margin-bottom: 0.5rem;
    }

    .image-gallery {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 1rem;
      margin: 2rem 0;
    }

    .image-card {
      position: relative;
      overflow: hidden;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
    }

    .image-card:hover {
      transform: scale(1.05);
    }

    .image-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .image-caption {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
      color: white;
      padding: 1rem;
      font-size: 0.9rem;
    }

    .video-container {
      margin: 2rem 0;
      text-align: center;
    }

    .video-wrapper {
      position: relative;
      padding-bottom: 56.25%;
      height: 0;
      overflow: hidden;
      border-radius: 10px;
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    }

    .video-wrapper iframe {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      border: none;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1rem;
      margin: 2rem 0;
    }

    .stat-card {
      background: rgba(150, 243, 245, 0.1);
      border: 1px solid #96f3f5;
      border-radius: 10px;
      padding: 1.5rem;
      text-align: center;
      transition: all 0.3s ease;
    }

    .stat-card:hover {
      background: rgba(150, 243, 245, 0.2);
      box-shadow: 0 5px 20px rgba(150, 243, 245, 0.2);
    }

    .stat-number {
      font-size: 2rem;
      font-weight: bold;
      color: #96f3f5;
      display: block;
    }

    .stat-label {
      color: #aaa;
      font-size: 0.9rem;
      margin-top: 0.5rem;
    }

    .quote {
      background: rgba(150, 243, 245, 0.05);
      border-left: 4px solid #96f3f5;
      padding: 1.5rem;
      margin: 2rem 0;
      font-style: italic;
      font-size: 1.1rem;
      border-radius: 0 8px 8px 0;
    }

    .quote-author {
      color: #96f3f5;
      margin-top: 1rem;
      font-weight: bold;
    }

    .back {
      display: inline-block;
      margin-top: 3rem;
      color: #96f3f5;
      text-decoration: none;
      padding: 0.8rem 1.5rem;
      border: 2px solid #96f3f5;
      border-radius: 25px;
      transition: all 0.3s ease;
      font-weight: bold;
    }

    .doors {
      display: inline-block;
      margin-top: 3rem;
      color: #96f3f5;
      text-decoration: none;
      padding: 0.8rem 1.5rem;
      border: 2px solid #96f3f5;
      border-radius: 25px;
      transition: all 0.3s ease;
      font-weight: bold;
    }

    .back:hover {
      background: #96f3f5;
      color: #333333;
      box-shadow: 0 5px 15px rgba(150, 243, 245, 0.4);
      transform: translateY(-2px);
    }

    .scroll-to-top {
      position: fixed;
      bottom: 2rem;
      right: 2rem;
      background: #96f3f5;
      color: #333333;
      border: none;
      border-radius: 50%;
      width: 50px;
      height: 50px;
      cursor: pointer;
      font-size: 1.2rem;
      box-shadow: 0 4px 15px rgba(150, 243, 245, 0.4);
      transition: all 0.3s ease;
      opacity: 0;
      visibility: hidden;
    }

    .scroll-to-top.visible {
      opacity: 1;
      visibility: visible;
    }

    .scroll-to-top:hover {
      transform: translateY(-3px);
      box-shadow: 0 6px 20px rgba(150, 243, 245, 0.6);
    }

    
    .light-solver-container {
      margin: 2rem 0;
      display: flex;
      justify-content: center;
    }

    .light-solver {
      background: rgba(150, 243, 245, 0.1);
      border: 1px solid #96f3f5;
      border-radius: 10px;
      padding: 2rem;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .light-solver h3 {
      color: #96f3f5;
      margin-bottom: 1rem;
      margin-top: 0;
    }

    .light-solver .canvas-container {
      display: flex;
      flex-direction: row;
      align-items: center;
      margin-bottom: 1rem;
    }

    .light-solver .door-label {
      color: #96f3f5;
      font-size: 1.2em;
      font-weight: bold;
      margin: 0 10px;
    }

    .light-solver .door-label.vertical {
      writing-mode: vertical-rl;
    }

    .light-solver .door-label.vertical.anaur {
      transform: rotate(180deg);
    }

    .light-solver .canvas-wrapper {
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .light-solver canvas {
      cursor: pointer;
      border: 3px solid transparent;
    }

    .light-solver .control-panel {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }

    .light-solver button {
      padding: 8px 16px;
      background: transparent;
      border: 2px solid #96f3f5;
      border-radius: 5px;
      color: #96f3f5;
      cursor: pointer;
      transition: all 0.3s ease;
      font-family: inherit;
    }

    .light-solver button:hover {
      background: #96f3f5;
      color: #333333;
    }

    .light-solver button:active {
      border-color: #7dd3d8;
      background: #7dd3d8;
    }

    .light-solver button:disabled {
      filter: grayscale(100%);
      pointer-events: none;
    }

    .light-solver .error-msg {
      visibility: hidden;
      color: #ff6b6b;
      font-size: 1.2em;
      margin-top: 1rem;
    }

    @media (max-width: 768px) {
      .article {
        padding: 1rem;
      }
      
      .article h1 {
        font-size: 2rem;
      }
      
      .stats-grid {
        grid-template-columns: 1fr;
      }
      
      .image-gallery {
        grid-template-columns: 1fr;
      }

      .light-solver {
        padding: 1rem;
      }

      .light-solver .canvas-container {
        flex-direction: column;
        gap: 10px;
      }

      .light-solver .door-label.vertical {
        writing-mode: initial;
        transform: none !important;
      }

      .light-solver .control-panel {
        flex-direction: column;
        width: 100%;
      }

      .light-solver button {
        width: 100%;
      }
    }

    .control-panel button {
  background: #333333;
  color: #96f3f5;
  border: 2px solid #00ffe5;
  border-radius: 12px;
  padding: 10px 20px;
  margin: 8px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: 0.25s ease;
}

.control-panel button:hover {
  color: #00ffe5;
  transform: scale(1.05);
}

.control-panel button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}