@layer components {
  .site-header {
    position: relative;
    z-index: 100;
    background-color: var(--color-porcelain);
    border-bottom: var(--border-hairline);
  }

  .site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-padding-mobile);
    min-height: 56px;
  }

  .site-header__brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
    color: var(--color-graphite);
    transition: color var(--transition-fast);
  }

  .site-header__brand:hover {
    color: var(--color-cobalt);
  }

  .site-header__logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    flex-shrink: 0;
    transition: transform var(--transition-base);
  }

  .site-header__brand:hover .site-header__logo {
    transform: rotate(90deg);
  }

  .site-header__wordmark {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
  }

  .site-header__nav {
    display: flex;
    align-items: center;
  }

  .site-header__list {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .site-header__item {
    margin: 0;
    padding: 0;
  }

  .site-header__item + .site-header__item {
    margin: 0;
  }

  .site-header__link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding-block: var(--space-xs);
    font-family: var(--font-body);
    font-size: var(--text-label-size);
    font-weight: var(--text-label-weight);
    letter-spacing: var(--text-label-letter-spacing);
    text-transform: uppercase;
    color: var(--color-graphite);
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast);
  }

  .site-header__link:hover {
    color: var(--color-cobalt);
    border-bottom-color: var(--color-cobalt);
  }

  .site-header__link[aria-current="page"] {
    color: var(--color-cobalt);
    border-bottom-color: var(--color-cobalt);
  }

  .site-header__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--color-graphite);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color var(--transition-fast);
  }

  .site-header__toggle:hover {
    border-color: var(--color-cobalt);
  }

  .site-header__toggle:focus-visible {
    outline: var(--border-focus);
    outline-offset: 2px;
  }

  .site-header__toggle-line {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--color-graphite);
    transition: background-color var(--transition-fast), transform var(--transition-base), opacity var(--transition-base);
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(2) {
    opacity: 0;
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  @media (max-width: 1023px) {
    .site-header__inner {
      padding-inline: var(--container-padding-tablet);
    }

    .site-header__nav {
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background-color: var(--color-porcelain);
      border-bottom: var(--border-hairline);
      max-height: 0;
      overflow: hidden;
      transition: max-height var(--transition-base);
      display: block;
    }

    .site-header__nav.is-open {
      max-height: calc(100vh - 56px);
      overflow-y: auto;
    }

    .site-header__list {
      flex-direction: column;
      align-items: stretch;
      gap: 0;
      padding: var(--space-sm) var(--container-padding-tablet) var(--space-lg);
    }

    .site-header__item {
      border-bottom: var(--border-hairline);
    }

    .site-header__item:last-child {
      border-bottom: none;
    }

    .site-header__link {
      display: flex;
      justify-content: center;
      width: 100%;
      min-height: 48px;
      padding-block: var(--space-sm);
      border-bottom: none;
    }

    .site-header__link:hover,
    .site-header__link[aria-current="page"] {
      border-bottom: none;
      color: var(--color-cobalt);
    }

    .site-header__toggle {
      display: flex;
    }
  }

  @media (max-width: 767px) {
    .site-header__inner {
      padding-inline: var(--container-padding-mobile);
    }

    .site-header__logo {
      width: 32px;
      height: 32px;
    }

    .site-header__wordmark {
      font-size: 13px;
    }

    .site-header__list {
      padding-inline: var(--container-padding-mobile);
    }
  }

  @media (max-width: 479px) {
    .site-header__wordmark {
      display: none;
    }
  }
}