/* Header styles for TravelGearX */

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

.tgx-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.tgx-topbar__item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #e5e7eb;
}

.tgx-topbar__item i {
  font-size: 0.85rem;
}

.tgx-topbar__item--center {
  justify-content: center;
  flex: 1;
  text-align: center;
}

.tgx-topbar__item--right {
  justify-content: flex-end;
  gap: 0.75rem;
}

.tgx-topbar__item a {
  font-weight: 500;
}

.tgx-header__main {
  background-color: var(--color-surface);
}

.tgx-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

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

.tgx-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text);
}

.tgx-logo__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.9rem;
  background: radial-gradient(circle at 10% 0, var(--color-accent), var(--color-primary));
  color: #fff;
  box-shadow: var(--shadow-md);
}

.tgx-logo__mark i {
  font-size: 1.25rem;
}

.tgx-logo__text {
  display: flex;
  flex-direction: column;
}

.tgx-logo__name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.tgx-logo__tagline {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Navigation */

.tgx-nav {
  flex: 1;
}

.tgx-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.tgx-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.35rem 0;
}

.tgx-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.tgx-nav__link:hover,
.tgx-nav__link:focus-visible {
  color: var(--color-text);
}

.tgx-nav__link:hover::after,
.tgx-nav__link:focus-visible::after {
  width: 100%;
}

.tgx-nav__item--accent .tgx-nav__link {
  color: var(--color-primary);
}

/* Header actions */

.tgx-header__actions {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.tgx-header__icon-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-full);
  background-color: var(--gray-100);
  color: var(--color-text);
  transition: background-color var(--transition-base), color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-fast);
}

.tgx-header__icon-link i {
  font-size: 1rem;
}

.tgx-header__icon-link:hover,
.tgx-header__icon-link:focus-visible {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.tgx-header__cart-count {
  position: absolute;
  top: -0.2rem;
  right: -0.2rem;
  min-width: 1.1rem;
  height: 1.1rem;
  border-radius: var(--radius-full);
  background-color: var(--color-accent);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 2px var(--color-surface);
}

/* Mobile menu toggle */

.tgx-header__toggle {
  display: none;
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--gray-200);
  background-color: var(--color-surface);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.tgx-header__toggle-icon,
.tgx-header__toggle-icon::before,
.tgx-header__toggle-icon::after {
  display: block;
  position: absolute;
  width: 1.25rem;
  height: 2px;
  border-radius: var(--radius-full);
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base), top var(--transition-base), bottom var(--transition-base);
}

.tgx-header__toggle-icon::before,
.tgx-header__toggle-icon::after {
  content: "";
}

.tgx-header__toggle-icon {
  top: 50%;
  transform: translateY(-50%);
}

.tgx-header__toggle-icon::before {
  top: -0.4rem;
}

.tgx-header__toggle-icon::after {
  bottom: -0.4rem;
}

.tgx-header__toggle[aria-expanded="true"] .tgx-header__toggle-icon {
  transform: rotate(45deg);
}

.tgx-header__toggle[aria-expanded="true"] .tgx-header__toggle-icon::before {
  top: 0;
  transform: rotate(90deg);
}

.tgx-header__toggle[aria-expanded="true"] .tgx-header__toggle-icon::after {
  bottom: 0;
  opacity: 0;
}

/* Responsive layout */

@media (max-width: 959px) {
  .tgx-topbar__inner {
    flex-wrap: wrap;
    row-gap: 0.25rem;
  }

  .tgx-topbar__item--center {
    order: -1;
    width: 100%;
  }

  .tgx-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background-color: var(--color-surface);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);
    transform-origin: top;
    transform: scaleY(0.95);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }

  .tgx-nav__list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4);
    gap: var(--space-3);
  }

  .tgx-nav__link {
    font-size: var(--text-base);
  }

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

  .tgx-header__inner {
    position: relative;
  }

  .tgx-header__main {
    border-bottom: 1px solid var(--gray-200);
  }

  .tgx-header__main.is-nav-open .tgx-nav {
    opacity: 1;
    visibility: visible;
    transform: scaleY(1);
  }
}

@media (min-width: 960px) {
  .tgx-nav {
    display: block;
  }

  .tgx-nav__list {
    justify-content: center;
  }
}

@media (max-width: 639px) {
  .tgx-logo__tagline {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tgx-nav,
  .tgx-header__toggle-icon,
  .tgx-header__icon-link,
  .tgx-nav__link::after {
    transition: none !important;
  }
}