/**
 * Modern Glass Navigation System
 * Complete responsive navigation with glass morphism effects
 */

/* ===== ACTIVE TRIP NAVIGATION ===== */
.active-trip-nav {
  background: rgba(40, 167, 69, 0.1) !important;
  border: 1px solid rgba(40, 167, 69, 0.2) !important;
  color: var(--success) !important;
}

.active-trip-nav:hover {
  background: rgba(40, 167, 69, 0.15) !important;
  transform: translateY(-1px);
}

.active-trip-nav .text-success {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; }
  50% { opacity: 0.7; }
  100% { opacity: 1; }
}

/* ===== MAIN NAVIGATION BAR ===== */
.nav-glass {
  background: var(--nav-bg-color, rgba(255, 255, 255, 0.1)) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  border-bottom: 1px solid var(--nav-border-color, rgba(0, 0, 0, 0.1)) !important;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
  padding: var(--space-4) 0;
  transition: all var(--timing-normal) var(--easing-smooth);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1) !important;
}

.nav-glass.scrolled {
  background: rgba(255, 255, 255, 0.2) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1) !important;
}

/* ===== NAVIGATION CONTAINER ===== */
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}

/* ===== MOBILE NAVIGATION TOGGLE ===== */
.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--timing-fast) var(--easing-smooth);
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border-glass);
}

.nav-toggle:hover {
  background: rgba(0, 0, 0, 0.1);
  transform: scale(1.05);
}

.nav-toggle-line {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 2px 0;
  border-radius: 2px;
  transition: all var(--timing-normal) var(--easing-smooth);
}

.nav-toggle.active .nav-toggle-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active .nav-toggle-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* ===== NAVIGATION MENU ===== */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

/* ===== NAVIGATION DROPDOWN ===== */
.nav-dropdown {
  position: relative;
}

.dropdown-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  background: none;
  border: none;
}

.dropdown-trigger.active .dropdown-icon {
  transform: rotate(180deg);
}

.dropdown-icon {
  font-size: var(--font-size-sm);
  transition: transform var(--timing-normal) var(--easing-smooth);
}

.dropdown-menu-glass {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 280px;
  background: var(--bg-glass-strong);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass-strong);
  border-radius: var(--radius-xl);
  box-shadow: var(--glass-shadow-strong);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--timing-normal) var(--easing-spring);
  z-index: 1030;
}

.dropdown-menu-glass.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu-glass::before {
  content: '';
  position: absolute;
  top: -6px;
  right: var(--space-6);
  width: 12px;
  height: 12px;
  background: var(--bg-glass-strong);
  border: 1px solid var(--border-glass-strong);
  border-bottom: none;
  border-right: none;
  transform: rotate(45deg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.dropdown-item-glass {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  color: var(--text-glass);
  text-decoration: none;
  transition: all var(--timing-fast) var(--easing-smooth);
  margin-bottom: var(--space-1);
}

.dropdown-item-glass:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-glass);
  transform: translateX(2px);
}

.dropdown-item-glass i {
  font-size: var(--font-size-lg);
  width: 20px;
  text-align: center;
}

.dropdown-item-glass .item-title {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  color: var(--text-glass);
}

.dropdown-item-glass .item-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-glass-muted);
  margin-top: 2px;
}

.dropdown-item-glass.text-danger:hover {
  background: rgba(239, 68, 68, 0.1);
  color: #fca5a5;
}

.dropdown-divider {
  height: 1px;
  background: var(--border-glass);
  margin: var(--space-2) 0;
  border: none;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .nav-container {
    padding: 0 var(--space-4);
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    border-top: 1px solid var(--border-glass);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-4);
    margin: 0 var(--space-4);
    border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
    box-shadow: var(--glass-shadow-strong);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px);
    transition: all var(--timing-normal) var(--easing-spring);
    max-height: 0;
    overflow: hidden;
  }
  
  .nav-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    max-height: 500px;
  }
  
  .nav-link-glass,
  .btn-glass,
  .btn-gradient {
    width: 100%;
    justify-content: center;
    margin-bottom: var(--space-3);
    padding: var(--space-4);
    text-align: center;
  }
  
  .nav-dropdown {
    width: 100%;
  }
  
  .dropdown-trigger {
    width: 100%;
    justify-content: center;
    padding: var(--space-4);
  }
  
  .dropdown-menu-glass {
    position: static;
    width: 100%;
    margin-top: var(--space-2);
    opacity: 1;
    visibility: visible;
    transform: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--timing-normal) var(--easing-smooth);
  }
  
  .dropdown-menu-glass.active {
    max-height: 300px;
  }
  
  .dropdown-menu-glass::before {
    display: none;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 0 var(--space-3);
  }
  
  .nav-brand {
    font-size: var(--font-size-lg);
    gap: var(--space-2);
  }
  
  .nav-menu {
    margin: 0 var(--space-2);
  }
}

/* ===== LOADING SPINNER ANIMATION ===== */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== SCROLL ANIMATIONS ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s var(--easing-spring);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== ADAPTIVE NAVIGATION THEMES ===== */
.nav-glass {
  /* Default theme variables */
  --nav-text-color: #1f2937;
  --nav-text-color-muted: rgba(31, 41, 55, 0.7);
  --nav-border-color: rgba(0, 0, 0, 0.1);
  --nav-bg-color: rgba(255, 255, 255, 0.1);
  --nav-bg-color-hover: rgba(0, 0, 0, 0.05);
}

/* Adaptive theme: Light text on dark backgrounds */
.nav-glass.nav-on-dark {
  --nav-text-color: #ffffff;
  --nav-text-color-muted: rgba(255, 255, 255, 0.8);
  --nav-border-color: rgba(255, 255, 255, 0.2);
  --nav-bg-color: rgba(0, 0, 0, 0.1);
  --nav-bg-color-hover: rgba(255, 255, 255, 0.1);

  border-bottom-color: var(--nav-border-color) !important;
}

/* Adaptive theme: Dark text on light backgrounds */
.nav-glass.nav-on-light {
  --nav-text-color: #1f2937;
  --nav-text-color-muted: rgba(31, 41, 55, 0.7);
  --nav-border-color: rgba(0, 0, 0, 0.1);
  --nav-bg-color: rgba(255, 255, 255, 0.1);
  --nav-bg-color-hover: rgba(0, 0, 0, 0.05);

  border-bottom-color: var(--nav-border-color) !important;
}

/* Apply adaptive colors to navigation elements - Higher specificity */
nav.nav-glass .nav-brand,
nav.nav-glass .nav-link-glass,
nav.nav-glass .dropdown-trigger {
  color: var(--nav-text-color) !important;
  transition: all 0.3s ease !important;
}

nav.nav-glass .nav-brand span,
nav.nav-glass .nav-link-glass span,
nav.nav-glass .dropdown-trigger span {
  color: var(--nav-text-color) !important;
}

nav.nav-glass .nav-brand i,
nav.nav-glass .nav-link-glass i,
nav.nav-glass .dropdown-trigger i {
  color: var(--nav-text-color-muted) !important;
}

/* Hover states with adaptive colors */
nav.nav-glass .nav-link-glass:hover,
nav.nav-glass .dropdown-trigger:hover {
  background: var(--nav-bg-color-hover) !important;
  color: var(--nav-text-color) !important;
}

/* Override default design-system styles */
nav.nav-glass.nav-on-dark .nav-brand,
nav.nav-glass.nav-on-light .nav-brand {
  color: var(--nav-text-color) !important;
}

nav.nav-glass.nav-on-dark .nav-brand:hover,
nav.nav-glass.nav-on-light .nav-brand:hover {
  color: var(--nav-text-color) !important;
}

nav.nav-glass.nav-on-dark .nav-link-glass,
nav.nav-glass.nav-on-light .nav-link-glass {
  color: var(--nav-text-color) !important;
}

nav.nav-glass.nav-on-dark .nav-link-glass:hover,
nav.nav-glass.nav-on-light .nav-link-glass:hover {
  color: var(--nav-text-color) !important;
  background: var(--nav-bg-color-hover) !important;
}

/* Toggle button lines */
.nav-glass .nav-toggle-line {
  background: var(--nav-text-color) !important;
}

/* Dropdown items */
.nav-glass .dropdown-item-glass {
  color: var(--nav-text-color) !important;
}

.nav-glass .dropdown-item-glass .item-title {
  color: var(--nav-text-color) !important;
}

.nav-glass .dropdown-item-glass .item-subtitle {
  color: var(--nav-text-color-muted) !important;
}

.nav-glass .dropdown-item-glass:hover {
  background: var(--nav-bg-color-hover) !important;
  color: var(--nav-text-color) !important;
}

/* Special handling for active trip nav (always keep success styling visible) */
.nav-glass .active-trip-nav {
  background: rgba(40, 167, 69, 0.15) !important;
  border: 1px solid rgba(40, 167, 69, 0.3) !important;
  color: var(--success) !important;
}

.nav-glass.nav-on-dark .active-trip-nav {
  background: rgba(40, 167, 69, 0.2) !important;
  border: 1px solid rgba(40, 167, 69, 0.4) !important;
}

.nav-glass .active-trip-nav span {
  color: var(--success) !important;
}

.nav-glass .active-trip-nav .text-success {
  color: var(--success) !important;
}

/* ===== ENHANCED FOCUS STATES ===== */
.nav-link-glass:focus,
.dropdown-trigger:focus,
.dropdown-item-glass:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== ENHANCED MOBILE INTERACTIONS ===== */
@media (hover: none) and (pointer: coarse) {
  .nav-link-glass:hover,
  .btn-glass:hover,
  .btn-gradient:hover {
    transform: none;
  }
  
  .nav-link-glass:active,
  .btn-glass:active,
  .btn-gradient:active {
    transform: scale(0.95);
  }
}

/* ===== NAVBAR PROGRESS INDICATOR ===== */
.nav-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
}

.nav-progress-bar {
  height: 100%;
  background: var(--bg-gradient-primary);
  width: 0%;
  transition: width 0.3s ease;
}