* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Lalezar', cursive;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      min-height: 100vh;
      padding: 20px;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.95);
      border-radius: 20px;
      padding: 30px;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    }

    .header {
      text-align: center;
      margin-bottom: 40px;
      padding: 20px;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      border-radius: 15px;
      color: white;
    }

    .header h1 {
      font-size: 2.5rem;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    }

    .accordion {
      margin-bottom: 20px;
      border-radius: 15px;
      overflow: hidden;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .accordion-header {
      background: linear-gradient(135deg, #667eea 0%, #38a4af  100%);
      padding: 20px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: all 0.3s ease;
    }

    .accordion-header:hover {
      background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    }

    .accordion-title {
      color: white;
      font-size: 1.8rem;
      text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
    }

    .accordion-icon {
      color: white;
      font-size: 1.5rem;
      transition: transform 0.3s ease;
    }

    .accordion-header.active .accordion-icon {
      transform: rotate(180deg);
    }

    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.5s ease;
      background: white;
    }

    .accordion-content.active {
      max-height: 5000px;
    }

    .items-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
      gap: 25px;
      padding: 30px;
    }

    .video-item {
      background: white;
      border-radius: 15px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .video-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    }

    .thumbnail-container {
      position: relative;
      width: 100%;
      padding-top: 56.25%;
      overflow: hidden;
      cursor: pointer;
      background: #000;
    }

    .thumbnail {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .thumbnail-container:hover .thumbnail {
      transform: scale(1.1);
    }

    .play-overlay {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 60px;
      height: 60px;
      background: rgba(255, 255, 255, 0.9);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s ease;
    }

    .play-overlay::after {
      content: '';
      width: 0;
      height: 0;
      border-style: solid;
      border-width: 12px 0 12px 20px;
      border-color: transparent transparent transparent #667eea;
      margin-right: -5px;
    }

    .thumbnail-container:hover .play-overlay {
      transform: translate(-50%, -50%) scale(1.2);
      background: rgba(102, 126, 234, 0.9);
    }

    .thumbnail-container:hover .play-overlay::after {
      border-color: transparent transparent transparent white;
    }

    .video-player {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      display: none;
    }

    .item-content {
      padding: 20px;
    }

    .item-title {
      font-size: 1.4rem;
      color: #333;
      margin-bottom: 15px;
      text-align: center;
    }

    .open-button {
      width: 100%;
      padding: 12px;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      border: none;
      border-radius: 10px;
      cursor: pointer;
      font-family: 'Lalezar', cursive;
      font-size: 1.1rem;
      transition: all 0.3s ease;
    }

    .open-button:hover {
      background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    }

    .btn {
      display: block;
      width: 200px;
      margin: 20px auto;
      padding: 15px;
      background: linear-gradient(135deg, green 0%, #764ba2 100%);
      color: white;
      border: none;
      border-radius: 10px;
      cursor: pointer;
      font-family: 'Lalezar', cursive;
      font-size: 1.3rem;
      text-align: center;
      text-decoration: none;
      transition: all 0.3s ease;
    }

    .btn:hover {
      background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
      transform: translateY(-3px);
      box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    }

    @media (max-width: 768px) {
      .header h1 {
        font-size: 1.8rem;
      }

      .accordion-title {
        font-size: 1.4rem;
      }

      .items-grid {
        grid-template-columns: 1fr;
        padding: 15px;
      }
    }