:root {
      --primary-color: #007bff; 
      --text-color-dark: #333;
      --text-color-medium: #666;
      --text-color-light: #777; 
      --background-light: #f8f9fa;
      --card-background: #ffffff;
      --border-color: #e0e0e0;
      --shadow-light: 0 4px 8px rgba(0, 0, 0, 0.1);
      --shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.2);
      --header-offset: 120px; 
    }

    .blog-list {
      padding-top: var(--header-offset, 120px);
      padding-bottom: 40px;
      background-color: var(--background-light);
      font-family: 'Arial', sans-serif;
      color: var(--text-color-dark);
    }

    .blog-list__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .blog-list__header {
      text-align: center;
      margin-bottom: 40px;
      padding-top: 20px;
    }

    .blog-list__title {
      font-size: 2.5em; 
      color: var(--primary-color);
      margin-bottom: 15px;
      line-height: 1.2;
      font-weight: bold;
    }

    .blog-list__description {
      font-size: 1.1em; 
      color: var(--text-color-medium);
      margin-bottom: 25px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      line-height: 1.6;
    }

    .blog-list__view-all-button {
      display: inline-block;
      background-color: var(--primary-color);
      color: #fff;
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      font-size: 1em;
    }

    .blog-list__view-all-button:hover {
      background-color: #0056b3; 
    }

    .blog-list__timeline {
      position: relative;
      display: flex;
      flex-direction: column;
      align-items: center; 
      padding-top: 20px;
    }

    .blog-list__timeline::before {
      content: '';
      position: absolute;
      width: 2px;
      background-color: var(--border-color);
      top: 0;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      z-index: 0;
    }

    .blog-list__grid {
      display: grid;
      grid-template-columns: 1fr; 
      gap: 30px; 
      width: 100%;
      max-width: 1000px; 
      margin-top: 20px;
    }

    .blog-list__item {
      background-color: var(--card-background);
      border-radius: 10px; 
      box-shadow: var(--shadow-light);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      position: relative;
      z-index: 1; 
      border: 1px solid var(--border-color); 
    }

    .blog-list__item:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }

    .blog-list__item-image-wrapper {
      width: 100%;
      padding-top: 56.25%; 
      position: relative;
      overflow: hidden;
    }

    .blog-list__item-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .blog-list__item-content {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

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

    .blog-list__item-title a {
      color: var(--text-color-dark);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .blog-list__item-title a:hover {
      color: var(--primary-color);
    }

    .blog-list__item-summary {
      font-size: 0.9em; 
      color: var(--text-color-medium);
      line-height: 1.6;
      margin-bottom: 15px;
      display: -webkit-box;
      -webkit-line-clamp: 3; 
      -webkit-box-orient: vertical;
      overflow: hidden;
      text-overflow: ellipsis;
      flex-grow: 1; 
    }

    .blog-list__item-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__item-date {
      font-size: 0.8em; 
      color: var(--text-color-light);
    }

    .blog-list__item-link {
      display: inline-block;
      color: var(--primary-color);
      text-decoration: none;
      font-weight: bold;
      font-size: 0.9em;
      transition: color 0.3s ease;
    }

    .blog-list__item-link:hover {
      color: #0056b3; 
      text-decoration: underline;
    }

    
    .blog-list__item-timeline-marker {
      position: absolute;
      left: 50%;
      top: 0; 
      transform: translateX(-50%) translateY(-50%);
      width: 20px;
      height: 20px;
      background-color: var(--primary-color);
      border-radius: 50%;
      border: 3px solid var(--background-light);
      z-index: 2;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .blog-list__item-timeline-marker::after {
      content: '';
      width: 8px;
      height: 8px;
      background-color: white;
      border-radius: 50%;
    }

    
    
    @media (min-width: 768px) {
      .blog-list__grid {
        grid-template-columns: repeat(2, 1fr); 
      }
      .blog-list__timeline::before {
        left: 50%; 
      }
      .blog-list__item-timeline-marker {
        left: 50%; 
      }
    }

    
    @media (min-width: 1024px) {
      .blog-list__grid {
        grid-template-columns: repeat(3, 1fr); 
      }
    }