/* ==========================================================================
   Header Component Styles
   ========================================================================== */

.site-header {
  position: relative;
  z-index: var(--z-header);
  width: 100%;
  background-color: var(--color-background);
  border-bottom: var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-gutter-desktop);
  min-height: 72px;
}

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

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

.site-header__logo {
  display: block;
  width: 48px;
  height: 48px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-text-heading);
  line-height: 1.2;
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  border-radius: var(--radius-small);
  cursor: pointer;
  color: var(--color-text-heading);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
}

.site-header__toggle:hover {
  background-color: rgba(42, 157, 143, 0.1);
}

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

.site-header__toggle-icon,
.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  display: block;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  position: relative;
}

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

.site-header__toggle-icon::before {
  top: -7px;
}

.site-header__toggle-icon::after {
  top: 7px;
}

.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(7px) rotate(45deg);
}

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

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

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

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

.site-header__nav-link {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-body-medium);
  letter-spacing: var(--tracking-body);
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-2) var(--space-1);
  border-radius: var(--radius-small);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.site-header__nav-link:hover {
  color: var(--color-primary);
  background-color: rgba(42, 157, 143, 0.05);
  text-decoration: none;
}

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

/* Compact menu breakpoint */
@media (max-width: 900px) {
  .site-header__inner {
    flex-wrap: wrap;
    padding-block: var(--space-2);
  }

  .site-header__toggle {
    display: inline-flex;
  }

  .site-header__nav {
    display: none;
    width: 100%;
    order: 3;
    margin-left: 0;
    background-color: var(--color-background);
    border-top: var(--border);
    padding-block: var(--space-2);
  }

  .site-header__nav.is-open {
    display: block;
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    width: 100%;
  }

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

  .site-header__nav-link {
    display: flex;
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: 1.125rem;
  }
}

@media (max-width: 480px) {
  .site-header__inner {
    padding-inline: var(--container-gutter-mobile);
  }

  .site-header__logo {
    width: 36px;
    height: 36px;
  }

  .site-header__brand-text {
    font-size: 1.25rem;
  }
}