:root {
    --blog-list-primary-color: #f3c200;
    --blog-list-text-color: #e0e0e0;
    --blog-list-background-color: #1a1a1a;
    --blog-list-card-background: #2a2a2a;
    --blog-list-border-color: #444;
    --blog-list-shadow-color: rgba(0, 0, 0, 0.5);
    --blog-list-border-radius: 8px;
    --blog-list-spacing-small: 10px;
    --blog-list-spacing-medium: 20px;
    --blog-list-spacing-large: 30px;
    --blog-list-font-size-base: 16px;
    --blog-list-font-size-small: 14px;
    --blog-list-font-size-xsmall: 12px;
    --blog-list-font-size-h3: 20px;
  }

  .blog-list {
    padding-top: var(--header-offset, 120px);
    padding-bottom: var(--blog-list-spacing-large);
    background-color: var(--blog-list-background-color);
    color: var(--blog-list-text-color);
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
  }

  .blog-list__container {
    padding: var(--blog-list-spacing-medium);
    position: relative;
  }

  .blog-list__heading {
    text-align: center;
    color: var(--blog-list-primary-color);
    margin-bottom: var(--blog-list-spacing-large);
    font-size: 2.2em;
    padding-top: var(--blog-list-spacing-large);
  }

  .blog-list__description {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--blog-list-spacing-large) auto;
    font-size: var(--blog-list-font-size-base);
    color: #b0b0b0;
  }

  .blog-list__timeline {
    position: relative;
    padding: var(--blog-list-spacing-medium) 0;
  }

  .blog-list__timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: var(--blog-list-spacing-medium);
    width: 4px;
    background-color: var(--blog-list-primary-color);
    z-index: 1;
  }

  .blog-list__item {
    background-color: var(--blog-list-card-background);
    border-radius: var(--blog-list-border-radius);
    overflow: hidden;
    box-shadow: 0 4px 10px var(--blog-list-shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    margin-bottom: var(--blog-list-spacing-large);
    position: relative;
    padding-left: calc(var(--blog-list-spacing-large) + var(--blog-list-spacing-small));
    z-index: 2;
  }

  .blog-list__item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--blog-list-shadow-color);
  }

  .blog-list__item::before {
    content: '';
    position: absolute;
    top: var(--blog-list-spacing-medium);
    left: calc(var(--blog-list-spacing-medium) - 8px);
    width: 16px;
    height: 16px;
    background-color: var(--blog-list-primary-color);
    border: 3px solid var(--blog-list-background-color);
    border-radius: 50%;
    z-index: 3;
  }

  .blog-list__item-image-wrapper {
    width: 100%;
    padding-top: 56.25%;
    position: relative;
    overflow: hidden;
    background-color: #333;
  }

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

  .blog-list__item-content {
    padding: var(--blog-list-spacing-medium);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
  }

  .blog-list__item-date {
    font-size: var(--blog-list-font-size-xsmall);
    color: #999;
    margin-bottom: 8px;
    display: block;
  }

  .blog-list__item-title {
    font-size: var(--blog-list-font-size-h3);
    font-weight: bold;
    margin-bottom: 10px;
    line-height: 1.3;
  }

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

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

  .blog-list__item-summary {
    font-size: var(--blog-list-font-size-small);
    color: #b0b0b0;
    margin-bottom: var(--blog-list-spacing-medium);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-grow: 1;
  }

  .blog-list__read-more {
    display: inline-block;
    background-color: var(--blog-list-primary-color);
    color: var(--blog-list-background-color);
    padding: 10px 15px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    font-size: var(--blog-list-font-size-small);
    transition: background-color 0.3s ease, transform 0.3s ease;
    align-self: flex-start;
  }

  .blog-list__read-more:hover {
    background-color: #e0b000;
    transform: translateY(-2px);
  }

  @media (min-width: 768px) {
    .blog-list__timeline::before {
      left: 50%;
      transform: translateX(-50%);
    }

    .blog-list__item {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--blog-list-spacing-medium);
      width: calc(50% - var(--blog-list-spacing-large));
      margin-left: 0;
      margin-right: 0;
      padding-left: 0;
      position: relative;
    }

    .blog-list__item::before {
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      margin-left: 0;
      border-color: var(--blog-list-card-background);
    }

    .blog-list__item:nth-child(odd) {
      margin-right: auto;
      text-align: right;
    }
    .blog-list__item:nth-child(odd) .blog-list__item-image-wrapper {
      order: 1;
    }
    .blog-list__item:nth-child(odd) .blog-list__item-content {
      padding-right: var(--blog-list-spacing-medium);
      padding-left: 0;
    }
    .blog-list__item:nth-child(odd) .blog-list__read-more {
      align-self: flex-end;
    }

    .blog-list__item:nth-child(even) {
      margin-left: auto;
      text-align: left;
    }
    .blog-list__item:nth-child(even) .blog-list__item-image-wrapper {
      order: 0;
    }
    .blog-list__item:nth-child(even) .blog-list__item-content {
      padding-left: var(--blog-list-spacing-medium);
      padding-right: 0;
    }
    .blog-list__item:nth-child(even) .blog-list__read-more {
      align-self: flex-start;
    }

    .blog-list__item::after {
      content: '';
      position: absolute;
      top: 50%;
      width: 0;
      height: 0;
      border-style: solid;
      transform: translateY(-50%);
      z-index: 3;
    }

    .blog-list__item:nth-child(odd)::after {
      border-width: 10px 0 10px 10px;
      border-color: transparent transparent transparent var(--blog-list-card-background);
      right: -10px;
    }

    .blog-list__item:nth-child(even)::after {
      border-width: 10px 10px 10px 0;
      border-color: transparent var(--blog-list-card-background) transparent transparent;
      left: -10px;
    }
  }