/* Navigation Components */

/* Primary Navigation */
.nav {
  background-color: var(--secondary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 4rem;
}

.nav__container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 640px) {
  .nav__container {
    padding: 0 var(--spacing-lg);
  }
}

@media (min-width: 1024px) {
  .nav__container {
    padding: 0 var(--spacing-xl);
  }
}

/* Navigation Brand */
.nav__brand {
  flex-shrink: 0;
}

.nav__logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--primary);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.nav__logo:hover {
  opacity: 0.8;
  text-decoration: none;
}

/* Mobile Toggle */
.nav__toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  margin-right: calc(var(--spacing-sm) * -1);
}

.nav__toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  margin-bottom: 5px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav__toggle-line:last-child {
  margin-bottom: 0;
}

/* Mobile styles */
@media (max-width: 768px) {
  .nav__toggle {
    display: block;
  }

  .nav__menu {
    position: fixed;
    top: 4rem;
    left: 0;
    right: 0;
    background-color: var(--secondary);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    transition: transform 0.3s ease;
    padding: var(--spacing-lg);
  }

  .nav__menu--open {
    transform: translateY(0);
  }

  .nav__links {
    flex-direction: column;
    margin-bottom: var(--spacing-lg);
  }

  .nav__item {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border);
  }
}

/* Navigation Menu */
.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

/* Navigation Links */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav__item {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
  position: relative;
}

.nav__item:hover {
  color: var(--primary);
  text-decoration: none;
}

.nav__item--active {
  color: var(--primary);
}

.nav__item--active::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--primary);
}

/* User Menu */
.nav__user {
  flex-shrink: 0;
}

.nav__user-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease;
}

.nav__user-menu:hover {
  background-color: var(--background-light);
}

/* Dropdown Component */
.dropdown {
  position: relative;
}

.dropdown__toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  cursor: pointer;
}

.dropdown__icon {
  transition: transform 0.2s ease;
}

.dropdown__toggle[aria-expanded="true"] .dropdown__icon {
  transform: rotate(180deg);
}

.dropdown__menu {
  position: absolute;
  top: 100%;
  margin-top: var(--spacing-xs);
  background-color: var(--secondary);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 1000;
}

.dropdown__toggle[aria-expanded="true"] + .dropdown__menu,
.dropdown__menu:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown__menu--right {
  right: 0;
}

.dropdown__item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  text-decoration: none;
  transition: background-color 0.2s ease;
  font-size: var(--font-size-md);
}

.dropdown__item:hover {
  background-color: var(--background-light);
  text-decoration: none;
}

.dropdown__item:first-child {
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.dropdown__item:last-child {
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.dropdown__divider {
  height: 1px;
  background-color: var(--border);
  margin: var(--spacing-xs) 0;
}

/* Breadcrumb Navigation */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-lg);
}

.breadcrumb__item {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb__item:hover {
  color: var(--primary);
}

.breadcrumb__separator {
  color: var(--text-secondary);
}

.breadcrumb__current {
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
}

/* Tab Navigation */
.tabs {
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--spacing-xl);
}

.tabs__list {
  display: flex;
  gap: var(--spacing-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tabs__item {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--spacing-md) 0;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.tabs__item:hover {
  color: var(--primary);
  text-decoration: none;
}

.tabs__item--active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}