@layer components {
  .site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-limestone);
    border-bottom: 1px solid var(--color-border-light);
  }

  .site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    min-height: 72px;
    padding-block: var(--space-3);
  }

  .site-header__brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
    color: var(--color-ocean-blue);
    text-decoration: none;
  }

  .site-header__brand:hover {
    color: var(--color-felt-green);
    text-decoration: none;
  }

  .site-header__logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    flex-shrink: 0;
  }

  .site-header__brand-text {
    font-family: var(--font-heading);
    font-size: var(--text-h4);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: var(--tracking-heading);
    line-height: 1.2;
    white-space: nowrap;
  }

  .site-header__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-button);
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
  }

  .site-header__toggle:hover {
    background-color: var(--color-coastal-sand);
  }

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

  .site-header__toggle-line {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-ocean-blue);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
  }

  .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);
  }

  .site-header__nav {
    display: flex;
    align-items: center;
    flex-shrink: 1;
    min-width: 0;
  }

  .site-header__nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .site-header__nav-item {
    margin: 0;
    padding: 0;
    flex-shrink: 0;
  }

  .site-header__nav-link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: var(--space-2) var(--space-1);
    font-family: var(--font-heading);
    font-size: var(--text-body-small);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: var(--tracking-heading);
    color: var(--color-ocean-blue);
    text-decoration: none;
    white-space: nowrap;
    transition: color var(--transition-fast);
  }

  .site-header__nav-link:hover {
    color: var(--color-felt-green);
    text-decoration: none;
  }

  .site-header__nav-link[aria-current="page"] {
    color: var(--color-felt-green);
    border-bottom: 2px solid var(--color-signal-yellow);
  }

  .site-header__nav-link:focus-visible {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
  }

  @media (max-width: 1023px) {
    .site-header__toggle {
      display: flex;
    }

    .site-header__nav {
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background-color: var(--color-limestone);
      border-bottom: 1px solid var(--color-border-light);
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
      max-height: calc(100vh - 72px);
      overflow-y: auto;
      transform: translateY(-8px);
      opacity: 0;
      visibility: hidden;
      transition: transform var(--transition-menu), opacity var(--transition-menu), visibility var(--transition-menu);
      z-index: 999;
    }

    .site-header__nav.is-open {
      transform: translateY(0);
      opacity: 1;
      visibility: visible;
    }

    .site-header__nav-list {
      flex-direction: column;
      align-items: stretch;
      gap: 0;
      padding: var(--space-3);
    }

    .site-header__nav-item {
      width: 100%;
    }

    .site-header__nav-link {
      display: flex;
      width: 100%;
      min-height: 48px;
      padding: var(--space-3);
      border-bottom: 1px solid var(--color-border-light);
    }

    .site-header__nav-item:last-child .site-header__nav-link {
      border-bottom: none;
    }
  }

  @media (max-width: 767px) {
    .site-header__inner {
      min-height: 64px;
      padding-block: var(--space-2);
    }

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

    .site-header__brand-text {
      font-size: var(--text-body);
    }

    .site-header__nav {
      max-height: calc(100vh - 64px);
    }
  }
}