@layer base {
  .section {
    padding: var(--spacing-16) 0;
    max-width: 800px;
    margin: 0 auto;
  }

  .header {
    text-align: center;
    margin-bottom: var(--spacing-12);
  }

  .title {
    font-family: var(--font-family-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--foreground);
    margin: 0 0 var(--spacing-4) 0;
  }

  .description {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    margin: 0;
    line-height: 1.6;
  }

  .timeline {
    position: relative;
    padding: 0 var(--spacing-4);
  }

  .timelineItem {
    display: flex;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-8);
    position: relative;
  }

  .timelineItem:last-child {
    margin-bottom: 0;
  }

  .timelineMarker {
    position: relative;
    flex-shrink: 0;
  }

  .iconWrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--primary-foreground);
    border-radius: 50%;
    box-shadow: var(--shadow);
    position: relative;
    z-index: 2;
  }

  .timelineLine {
    position: absolute;
    left: 50%;
    top: 48px;
    width: 2px;
    height: calc(100% + var(--spacing-8));
    background: var(--border);
    transform: translateX(-50%);
    z-index: 1;
  }

  .timelineContent {
    flex: 1;
    padding-top: var(--spacing-2);
  }

  .eventHeader {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-3);
  }

  .eventTitle {
    font-family: var(--font-family-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--foreground);
    margin: 0;
    line-height: 1.3;
    flex: 1;
  }

  .eventDate {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    font-weight: 500;
    white-space: nowrap;
    background: var(--muted);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
  }

  .eventDescription {
    color: var(--muted-foreground);
    line-height: 1.6;
    margin: 0;
  }

  /* Responsive design */
  @media (max-width: 768px) {
    .title {
      font-size: 2rem;
    }

    .timeline {
      padding: 0 var(--spacing-2);
    }

    .timelineItem {
      gap: var(--spacing-4);
    }

    .iconWrapper {
      width: 40px;
      height: 40px;
    }

    .timelineLine {
      top: 40px;
    }

    .eventHeader {
      flex-direction: column;
      gap: var(--spacing-2);
    }

    .eventTitle {
      font-size: 1.125rem;
    }

    .eventDate {
      align-self: flex-start;
    }
  }
}