/* ========================================
   NAVIGATION COMPONENTS
   ======================================== */

/* Desktop navigation - extended from header */
@media (min-width: 769px) {
  .nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
  }
  
  .nav-link {
    position: relative;
    padding: var(--spacing-2) var(--spacing-3);
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    border-radius: var(--border-radius-md);
    transition: color var(--transition-duration-fast) var(--transition-timing-out),
                background-color var(--transition-duration-fast) var(--transition-timing-out);
    white-space: nowrap;
    text-decoration: none;
  }
  
  .nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-50);
    text-decoration: none;
  }
  
  .nav-link.active {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    background-color: var(--color-primary-50);
  }
}

/* ========================================
   MOBILE NAVIGATION FIXES & ENHANCEMENTS
   ======================================== */

/* Mobile menu toggle - enhanced for touch */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 48px; /* Increased for better touch target */
  height: 48px; /* Increased for better touch target */
  padding: 12px;
  background: transparent;
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: background-color var(--transition-duration-fast) var(--transition-timing-out);
  z-index: 1001; /* Above nav menu */
  position: relative;
}

.mobile-menu-toggle:hover {
  background-color: var(--color-background-tertiary);
}

.mobile-menu-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  margin: 3px 0;
  transition: transform var(--transition-duration-fast) var(--transition-timing-out),
              opacity var(--transition-duration-fast) var(--transition-timing-out),
              background-color var(--transition-duration-fast) var(--transition-timing-out);
  border-radius: var(--border-radius-full);
  transform-origin: center;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile navigation - completely refactored */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 80px; /* Height of header */
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-background-primary);
    padding: var(--spacing-4);
    display: none;
    flex-direction: column;
    gap: var(--spacing-2);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--color-border-light);
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity var(--transition-duration-normal) var(--transition-timing-out),
                transform var(--transition-duration-normal) var(--transition-timing-out),
                visibility var(--transition-duration-normal) var(--transition-timing-out);
    visibility: hidden;
  }
  
  .nav-menu.active {
    display: flex;
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    animation: none; /* Remove animation, use transition instead */
  }
  
  .nav-link {
    display: block;
    padding: var(--spacing-3) var(--spacing-4);
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-lg);
    border-radius: var(--border-radius-md);
    transition: background-color var(--transition-duration-fast) var(--transition-timing-out),
                color var(--transition-duration-fast) var(--transition-timing-out);
    text-align: left;
    width: 100%;
    text-decoration: none;
  }
  
  .nav-link:hover,
  .nav-link:focus {
    background-color: var(--color-background-tertiary);
    color: var(--color-primary);
    text-decoration: none;
  }
  
  .nav-link.active {
    background-color: var(--color-primary-50);
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
  }
  
  /* Prevent body scroll when menu is open */
  body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
  }
}

/* Tablet and desktop styles - ensure menu is visible */
@media (min-width: 769px) {
  .mobile-menu-toggle {
    display: none !important; /* Force hide on desktop */
  }
  
  .nav-menu {
    display: flex !important; /* Force show on desktop */
    position: static;
    opacity: 1;
    transform: none;
    visibility: visible;
    box-shadow: none;
    border-top: none;
    padding: 0;
    overflow: visible;
    background: transparent;
    height: auto;
  }
  
  body.menu-open {
    overflow: auto;
    position: static;
    width: auto;
    height: auto;
  }
}

/* Ensure header has proper z-index */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-background-primary);
  border-bottom: 1px solid var(--color-border-light);
}

/* Fix for iOS Safari - viewport height issue */
@supports (-webkit-touch-callout: none) {
  .nav-menu {
    height: -webkit-fill-available;
  }
}

/* Animation (keep for backward compatibility) */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   BREADCRUMB NAVIGATION
   ======================================== */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  padding: var(--spacing-3) 0;
  margin-bottom: var(--spacing-4);
  list-style: none;
  font-size: var(--font-size-sm);
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  color: var(--color-text-tertiary);
}

.breadcrumb-item:not(:last-child)::after {
  content: '/';
  margin: 0 var(--spacing-2);
  color: var(--color-text-tertiary);
}

.breadcrumb-item a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-duration-fast) var(--transition-timing-out);
}

.breadcrumb-item a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

/* ========================================
   PAGINATION NAVIGATION
   ======================================== */

.pagination {
  display: flex;
  gap: var(--spacing-1);
  justify-content: center;
  margin: var(--spacing-8) 0;
}

.pagination-item {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--spacing-2);
  border-radius: var(--border-radius-md);
  background-color: var(--color-background-secondary);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-duration-fast) var(--transition-timing-out);
  cursor: pointer;
  border: var(--border-width-thin) solid var(--color-border-light);
}

.pagination-item:hover {
  background-color: var(--color-primary-50);
  border-color: var(--color-primary);
  color: var(--color-primary);
  text-decoration: none;
}

.pagination-item.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.pagination-item.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}