@layer base {
  .section {
    padding: var(--spacing-16) 0;
    background: var(--background);
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
  }

  .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-bottom: var(--spacing-4);
  }

  .description {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
  }

  .categories {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    justify-content: center;
    margin-bottom: var(--spacing-8);
  }

  .categoryButton {
    padding: var(--spacing-2) var(--spacing-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    background: var(--card);
    color: var(--foreground);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--animation-duration-fast) ease;
  }

  .categoryButton:hover {
    background: var(--muted);
    border-color: var(--primary);
  }

  .categoryButton.active {
    background: var(--primary);
    color: var(--primary-foreground);
    border-color: var(--primary);
  }

  .measures {
    display: grid;
    gap: var(--spacing-6);
  }

  .measure {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--animation-duration-normal) ease;
  }

  .measure:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
  }

  .measureHeader {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-4);
    padding: var(--spacing-6);
  }

  .measureIcon {
    width: 3rem;
    height: 3rem;
    background: var(--primary);
    color: var(--primary-foreground);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .measureIcon svg {
    width: 1.5rem;
    height: 1.5rem;
  }

  .measureContent {
    flex: 1;
  }

  .measureTitle {
    font-family: var(--font-family-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: var(--spacing-2);
  }

  .measureDescription {
    color: var(--muted-foreground);
    line-height: 1.5;
  }

  .expandButton {
    background: none;
    border: none;
    color: var(--muted-foreground);
    cursor: pointer;
    padding: var(--spacing-1);
    border-radius: var(--radius);
    transition: all var(--animation-duration-fast) ease;
    flex-shrink: 0;
  }

  .expandButton:hover {
    background: var(--muted);
    color: var(--foreground);
  }

  .expandButton svg {
    width: 1.25rem;
    height: 1.25rem;
  }

  .technicalDetails {
    border-top: 1px solid var(--border);
    padding: var(--spacing-6);
    background: var(--muted);
    animation: slideDown var(--animation-duration-normal) ease;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .detailsTitle {
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: var(--spacing-3);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  .detailsList {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .detailItem {
    padding: var(--spacing-2) 0;
    color: var(--muted-foreground);
    font-size: 0.875rem;
    line-height: 1.5;
    position: relative;
    padding-left: var(--spacing-4);
  }

  .detailItem::before {
    content: '•';
    color: var(--primary);
    font-weight: bold;
    position: absolute;
    left: 0;
  }

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

    .measureHeader {
      padding: var(--spacing-4);
      gap: var(--spacing-3);
    }

    .measureIcon {
      width: 2.5rem;
      height: 2.5rem;
    }

    .measureIcon svg {
      width: 1.25rem;
      height: 1.25rem;
    }

    .measureTitle {
      font-size: 1.125rem;
    }

    .technicalDetails {
      padding: var(--spacing-4);
    }

    .categories {
      justify-content: flex-start;
      overflow-x: auto;
      padding-bottom: var(--spacing-2);
    }

    .categoryButton {
      white-space: nowrap;
    }
  }
}