@layer reset, base, primitives;

@layer primitives {
  .site-header {
    position: relative;
    z-index: 100;
    background-color: var(--color-porcelain);
    border-bottom: 1px solid var(--color-sage);
    padding-block: var(--space-3);
  }

  .site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    min-height: 56px;
  }

  .site-header__brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    min-width: 0;
    flex-shrink: 0;
  }

  .site-header__logo {
    width: 44px;
    height: 44px;
    object-fit: contain;
    flex-shrink: 0;
  }

  .site-header__brand-text {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-deep-green);
    white-space: nowrap;
  }

  .site-header__toggle {
    display: none;
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background-color: transparent;
    border: 1px solid var(--color-graphite-soft);
    border-radius: var(--radius-button);
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
  }

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

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

  .site-header__toggle-icon,
  .site-header__toggle-icon::before,
  .site-header__toggle-icon::after {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--color-graphite);
    border-radius: 1px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
  }

  .site-header__toggle-icon {
    position: relative;
  }

  .site-header__toggle-icon::before,
  .site-header__toggle-icon::after {
    content: "";
    position: absolute;
    left: 0;
  }

  .site-header__toggle-icon::before {
    top: -6px;
  }

  .site-header__toggle-icon::after {
    top: 6px;
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-icon {
    background-color: transparent;
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::before {
    transform: translateY(6px) rotate(45deg);
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::after {
    transform: translateY(-6px) rotate(-45deg);
  }

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

  .site-header__list {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    list-style: none;
    margin: 0;
    padding: 0;
  }

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

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

  .site-header__link {
    display: inline-block;
    padding: var(--space-2) 0;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--color-graphite);
    white-space: nowrap;
    transition: color var(--transition-fast);
  }

  .site-header__link:hover {
    color: var(--color-terracotta);
  }

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

  .site-header__item--contact .site-header__link {
    color: var(--color-terracotta);
  }

  .site-header__item--contact .site-header__link:hover {
    color: var(--color-deep-green);
  }

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

    .site-header__nav {
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background-color: var(--color-porcelain);
      border-bottom: 1px solid var(--color-sage);
      box-shadow: var(--shadow-subtle);
      max-height: 0;
      overflow: hidden;
      transition: max-height var(--transition-fast);
      z-index: 99;
    }

    .site-header__nav[data-open] {
      max-height: 70vh;
      overflow-y: auto;
    }

    .site-header__list {
      flex-direction: column;
      align-items: stretch;
      gap: 0;
      padding: var(--space-4);
    }

    .site-header__item {
      border-bottom: 1px solid var(--color-sage);
    }

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

    .site-header__link {
      display: block;
      padding: var(--space-3) 0;
      font-size: 1rem;
      text-transform: none;
      letter-spacing: 0;
    }
  }

  @media (max-width: 767px) {
    .site-header__logo {
      width: 36px;
      height: 36px;
    }

    .site-header__brand-text {
      font-size: 1.125rem;
    }
  }
}