:root {
      --primary-bg-color: #1a1a1a;
      --secondary-bg-color: #2a2a2a;
      --text-color-light: #f0f0f0;
      --text-color-medium: #cccccc;
      --text-color-dark: #999999;
      --accent-color-primary: #ffcc00; 
      --accent-color-secondary: #00cc66; 
      --border-color: #333333;
      --shadow-color: rgba(0, 0, 0, 0.4);
      --card-border-radius: 12px;
      --spacing-unit: 20px;
    }

    .blog-list {
      padding-top: var(--header-offset, 120px);
      background-color: var(--primary-bg-color);
      color: var(--text-color-light);
      min-height: 100vh;
      padding-bottom: calc(var(--spacing-unit) * 2);
    }

    .blog-list__hero {
      text-align: center;
      padding: calc(var(--spacing-unit) * 2) var(--spacing-unit);
      max-width: 800px;
      margin: 0 auto;
    }

    .blog-list__main-title {
      font-size: 2.5em; 
      color: var(--accent-color-primary);
      margin-bottom: var(--spacing-unit);
      line-height: 1.2;
      font-weight: bold;
    }

    .blog-list__description {
      font-size: 1.1em; 
      color: var(--text-color-medium);
      line-height: 1.6;
      margin-bottom: calc(var(--spacing-unit) * 2);
    }

    .blog-list__timeline-wrapper {
      position: relative;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--spacing-unit);
    }

    .blog-list__timeline-line {
      position: absolute;
      left: 20px; 
      top: 0;
      bottom: 0;
      width: 2px;
      background-color: var(--border-color);
      z-index: 0;
    }

    .blog-list__timeline-item {
      position: relative;
      margin-bottom: calc(var(--spacing-unit) * 2);
      padding-left: calc(var(--spacing-unit) * 2 + 10px); 
      display: flex; 
      align-items: flex-start; 
    }

    .blog-list__timeline-dot {
      position: absolute;
      left: 12px; 
      top: 0;
      width: 16px;
      height: 16px;
      background-color: var(--accent-color-secondary);
      border-radius: 50%;
      border: 2px solid var(--primary-bg-color);
      z-index: 1;
      box-shadow: 0 0 0 3px var(--primary-bg-color); 
    }

    .blog-list__card {
      background-color: var(--secondary-bg-color);
      border-radius: var(--card-border-radius);
      box-shadow: 0 4px 8px var(--shadow-color);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      width: 100%;
      overflow: hidden;
    }

    .blog-list__card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 16px var(--shadow-color);
    }

    .blog-list__card-image-wrapper {
      width: 100%;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      border-top-left-radius: var(--card-border-radius);
      border-top-right-radius: var(--card-border-radius);
    }

    .blog-list__card-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .blog-list__card-content {
      padding: var(--spacing-unit);
      flex-grow: 1;
    }

    .blog-list__card-title {
      font-size: 1.25em; 
      font-weight: bold;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .blog-list__card-link {
      color: var(--accent-color-primary);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .blog-list__card-link:hover {
      color: var(--text-color-light);
    }

    .blog-list__card-summary {
      font-size: 0.9em; 
      color: var(--text-color-medium);
      line-height: 1.6;
      margin-bottom: var(--spacing-unit);
      overflow: hidden;
      text-overflow: ellipsis;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      max-height: calc(0.9em * 1.6 * 3); 
    }

    .blog-list__card-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: auto; 
      padding-top: 10px;
      border-top: 1px solid var(--border-color);
    }

    .blog-list__card-date {
      font-size: 0.8em; 
      color: var(--text-color-dark);
    }

    .blog-list__card-read-more {
      font-size: 0.9em; 
      color: var(--accent-color-secondary);
      text-decoration: none;
      font-weight: bold;
      transition: color 0.3s ease;
    }

    .blog-list__card-read-more:hover {
      color: var(--text-color-light);
    }

    

    
    @media (min-width: 768px) {
      .blog-list__main-title {
        font-size: 3em; 
      }
      .blog-list__description {
        font-size: 1.2em; 
      }

      .blog-list__timeline-wrapper {
        padding: 0 calc(var(--spacing-unit) * 2);
      }

      .blog-list__timeline-line {
        left: 50%;
        transform: translateX(-50%);
      }

      .blog-list__timeline-item {
        width: 50%;
        padding-left: 0;
        margin-left: 0;
        margin-right: 0;
        position: relative;
        padding-right: 0;
      }

      .blog-list__timeline-item:nth-child(odd) {
        float: left;
        clear: left;
        padding-right: calc(var(--spacing-unit) * 2 + 10px); 
      }

      .blog-list__timeline-item:nth-child(even) {
        float: right;
        clear: right;
        padding-left: calc(var(--spacing-unit) * 2 + 10px); 
      }

      .blog-list__timeline-item:nth-child(odd) .blog-list__timeline-dot {
        left: auto;
        right: -8px; 
      }

      .blog-list__timeline-item:nth-child(even) .blog-list__timeline-dot {
        left: -8px; 
      }

      .blog-list__timeline-item:nth-child(odd) .blog-list__card {
        margin-left: auto;
        max-width: 450px; 
      }

      .blog-list__timeline-item:nth-child(even) .blog-list__card {
        margin-right: auto;
        max-width: 450px; 
      }
      
      .blog-list__timeline-item:nth-child(odd) .blog-list__card-meta {
        justify-content: flex-start;
      }
      
      .blog-list__timeline-item:nth-child(even) .blog-list__card-meta {
        justify-content: flex-end;
      }
    }

    
    @media (min-width: 1024px) {
      .blog-list__main-title {
        font-size: 3.5em; 
      }
      .blog-list__description {
        font-size: 1.3em; 
      }
      .blog-list__timeline-wrapper {
        padding: 0;
      }
    }