/**
 * Navigation styles - Sidebar, mobile header, language toggle
 */

/* --------------------------------------------------------------------------
   Sidebar
   -------------------------------------------------------------------------- */
.sidebar {
  width: var(--sidebar-width);
  background: white;
  border-right: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 40;
}

.sidebar-header {
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--gray-100);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 2px 8px rgba(34, 197, 94, 0.3);
}

.logo-text {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-600);
  letter-spacing: -0.025em;
}

.logo-subtitle {
  font-size: 0.75rem;
  color: var(--gray-500);
  font-weight: 500;
}

.sidebar-nav {
  flex: 1;
  padding: 0.75rem;
  overflow-y: auto;
}

.nav-section {
  margin-bottom: 1.5rem;
}

.nav-section-title {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.25rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius);
  color: var(--gray-600);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  transition: all 0.15s ease;
  cursor: pointer;
  margin-bottom: 2px;
}

.nav-item:hover {
  background: var(--gray-100);
  color: var(--gray-900);
}

.nav-item.active {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  color: white;
  box-shadow: 0 2px 8px rgba(34, 197, 94, 0.25);
}

.nav-item.active:hover {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
}

.nav-icon {
  width: 20px;
  height: 20px;
  opacity: 0.8;
}

.nav-item.active .nav-icon {
  opacity: 1;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--gray-100);
}

.user-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s;
}

.user-card:hover {
  background: var(--gray-100);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-400) 0%, var(--primary-500) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
}

.user-info {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--gray-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 0.75rem;
  color: var(--gray-500);
}

/* --------------------------------------------------------------------------
   Mobile Header
   -------------------------------------------------------------------------- */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: white;
  border-bottom: 1px solid var(--gray-200);
  z-index: 50;
  padding: 0 12px;
  align-items: center;
  justify-content: space-between;
}

.mobile-menu-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: var(--radius);
  color: var(--gray-600);
  cursor: pointer;
  transition: all 0.15s;
}

.mobile-menu-btn:hover {
  background: var(--gray-100);
  color: var(--gray-900);
}

.mobile-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mobile-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.mobile-logo-text {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--primary-600);
  letter-spacing: -0.025em;
}

.mobile-user-menu {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
}

.mobile-user-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
}

.mobile-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-400) 0%, var(--primary-500) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 0.8125rem;
}

.mobile-user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 200px;
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s ease;
  z-index: 100;
}

.mobile-user-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-user-info {
  padding: 12px 16px;
}

.mobile-user-name {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--gray-900);
}

.mobile-user-role {
  font-size: 0.75rem;
  color: var(--gray-500);
  margin-top: 2px;
}

.mobile-user-divider {
  height: 1px;
  background: var(--gray-100);
}

.mobile-logout-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 12px 16px;
  background: transparent;
  border: none;
  color: var(--red-600);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
}

.mobile-logout-btn:hover {
  background: var(--red-50);
}

.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 35;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* --------------------------------------------------------------------------
   Header Actions
   -------------------------------------------------------------------------- */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* --------------------------------------------------------------------------
   Language Toggle
   -------------------------------------------------------------------------- */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.625rem;
  background: transparent;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  color: var(--gray-700);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.lang-toggle:hover {
  background: var(--gray-100);
  border-color: var(--gray-400);
}

.lang-flag {
  font-size: 1rem;
  line-height: 1;
}

.lang-code {
  text-transform: uppercase;
}

/* Mobile language toggle */
.mobile-lang-toggle {
  border-color: transparent;
  background: transparent;
  color: var(--gray-600);
}

.mobile-lang-toggle:hover {
  background: var(--gray-100);
  border-color: transparent;
}