/* Header styles for petworldd */

.pw-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.pw-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

/* Brand */

.pw-header__brand {
  display: flex;
  align-items: center;
}

.pw-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: var(--font-size-lg);
}

.pw-header__logo-mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-strong));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.pw-header__logo-mark .fa-paw {
  font-size: 1.1rem;
}

.pw-header__logo-text {
  letter-spacing: 0.02em;
}

/* Navigation */

.pw-header__nav {
  margin-left: auto;
}

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

.pw-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.pw-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15rem;
  width: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}

.pw-header__nav-link:hover,
.pw-header__nav-link:focus-visible {
  color: var(--color-text);
}

.pw-header__nav-link:hover::after,
.pw-header__nav-link:focus-visible::after {
  width: 100%;
}

.pw-header__nav-item--highlight .pw-header__nav-link--cta {
  padding-inline: 0.9rem;
  padding-block: 0.45rem;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
  border: 1px solid transparent;
}

.pw-header__nav-item--highlight .pw-header__nav-link--cta::after {
  display: none;
}

.pw-header__nav-item--highlight .pw-header__nav-link--cta:hover,
.pw-header__nav-item--highlight .pw-header__nav-link--cta:focus-visible {
  background-color: var(--color-primary-strong);
}

/* Mobile toggle */

.pw-header__toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  background-color: #ffffff;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
}

.pw-header__toggle:hover,
.pw-header__toggle:focus-visible {
  background-color: var(--gray-50);
}

.pw-header__toggle-icon {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.pw-header__toggle-line {
  width: 18px;
  height: 2px;
  border-radius: var(--radius-pill);
  background-color: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.pw-header__toggle-text {
  line-height: 1;
}

/* Toggle active state */

.pw-header__toggle[aria-expanded="true"] .pw-header__toggle-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.pw-header__toggle[aria-expanded="true"] .pw-header__toggle-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Responsive behavior */

@media (max-width: 768px) {
  .pw-header__inner {
    gap: var(--space-3);
  }

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

  .pw-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background-color: var(--color-surface);
    box-shadow: var(--shadow-md);
    border-top: 1px solid var(--color-border-subtle);
    transform-origin: top;
  }

  .pw-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
  }

  .pw-header__nav-item {
    border-bottom: 1px solid var(--color-border-subtle);
  }

  .pw-header__nav-link,
  .pw-header__nav-link--cta {
    padding: 0.85rem var(--space-4);
  }

  .pw-header__nav-item--highlight .pw-header__nav-link--cta {
    margin: var(--space-1) var(--space-4);
    text-align: center;
  }

  .pw-header__nav--open .pw-header__nav-list {
    max-height: 420px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pw-header__nav-list {
    transition: none;
  }
}