:root {
    --primary-color: hsl(40, 90%, 60%);
    --secondary-color: hsl(210, 10%, 20%);
    --text-color-light: hsl(0, 0%, 90%);
    --text-color-dark: hsl(0, 0%, 20%);
    --background-dark: hsl(0, 0%, 10%);
    --card-background: hsl(0, 0%, 15%);
    --border-radius: 10px;
    --shadow-light: 0 4px 8px rgba(0, 0, 0, 0.2);
    --shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.4);
    --header-offset: 120px;
  }

  .blog-list {
    padding-top: var(--header-offset);
    background-color: var(--background-dark);
    color: var(--text-color-light);
    min-height: 100vh;
    padding-bottom: 40px;
  }

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

  .blog-list__heading {
    font-size: 2.5em;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
    font-weight: bold;
    line-height: 1.3;
  }

  .blog-list__description {
    font-size: 1.1em;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px auto;
    color: var(--text-color-light);
    line-height: 1.6;
  }

  .blog-list__timeline {
    position: relative;
    padding: 20px 0;
  }

  .blog-list__timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transform: translateX(-50%);
    z-index: 1;
  }

  .blog-list__item {
    position: relative;
    width: 100%;
    margin-bottom: 40px;
    padding: 0 20px;
    z-index: 2;
  }

  .blog-list__item::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border: 3px solid var(--card-background);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 3;
  }

  .blog-list__item-content {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    padding: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: 100%;
  }

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

  .blog-list__image-wrapper {
    width: 100%;
    padding-bottom: 56.25%;
    position: relative;
    margin-bottom: 15px;
    border-radius: calc(var(--border-radius) - 5px);
    overflow: hidden;
  }

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

  .blog-list__text-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
  }

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

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

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

  .blog-list__summary {
    font-size: 0.95em;
    color: hsl(0, 0%, 70%);
    margin-bottom: 15px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .blog-list__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .blog-list__date {
    font-size: 0.85em;
    color: hsl(0, 0%, 50%);
  }

  .blog-list__read-more {
    font-size: 0.9em;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
    padding: 8px 15px;
    border: 1px solid var(--primary-color);
    border-radius: 5px;
    transition: background-color 0.3s ease, color 0.3s ease;
  }

  .blog-list__read-more:hover {
    background-color: var(--primary-color);
    color: var(--background-dark);
  }

  @media (max-width: 767px) {
    .blog-list__heading {
      font-size: 2em;
    }
    .blog-list__description {
      font-size: 1em;
    }
    .blog-list__timeline::before {
      left: 20px;
      transform: translateX(0);
    }
    .blog-list__item {
      padding-left: 50px;
      padding-right: 0;
    }
    .blog-list__item::before {
      left: 20px;
      transform: translateX(0);
    }
    .blog-list__item-content {
      width: 100%;
    }
  }

  @media (min-width: 768px) and (max-width: 1023px) {
    .blog-list__timeline {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px 20px;
      padding: 20px;
    }

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

    .blog-list__item {
      margin-bottom: 0;
      padding: 0;
    }

    .blog-list__item:nth-child(odd) {
      grid-column: 1 / 2;
      padding-right: 30px;
      text-align: right;
    }

    .blog-list__item:nth-child(even) {
      grid-column: 2 / 3;
      padding-left: 30px;
      text-align: left;
    }

    .blog-list__item::before {
      left: auto;
      transform: translateX(0);
    }

    .blog-list__item:nth-child(odd)::before {
      right: -10px;
      left: auto;
    }

    .blog-list__item:nth-child(even)::before {
      left: -10px;
      right: auto;
    }

    .blog-list__item:nth-child(odd) .blog-list__item-content {
      margin-left: auto;
    }

    .blog-list__item:nth-child(even) .blog-list__item-content {
      margin-right: auto;
    }

    .blog-list__item:nth-child(odd) .blog-list__image-wrapper {
        margin-left: auto;
        margin-right: 0;
    }
    .blog-list__item:nth-child(even) .blog-list__image-wrapper {
        margin-right: auto;
        margin-left: 0;
    }

    .blog-list__item:nth-child(odd) .blog-list__meta {
        justify-content: flex-end;
    }
    .blog-list__item:nth-child(odd) .blog-list__meta .blog-list__date {
        margin-right: 15px;
    }
    .blog-list__item:nth-child(even) .blog-list__meta {
        justify-content: flex-start;
    }
    .blog-list__item:nth-child(even) .blog-list__meta .blog-list__date {
        margin-left: 15px;
    }
  }

  @media (min-width: 1024px) {
    .blog-list__timeline {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      padding: 0;
    }

    .blog-list__timeline::before {
      display: none;
    }

    .blog-list__item {
      margin-bottom: 0;
      padding: 0;
    }

    .blog-list__item::before {
      display: none;
    }

    .blog-list__item-content {
      text-align: left;
    }

    .blog-list__item-content .blog-list__meta {
        justify-content: space-between;
    }
    .blog-list__item-content .blog-list__meta .blog-list__date {
        margin-left: 0;
        margin-right: 0;
    }
  }