/**
 * SAMPARK - Apple-Inspired Design System
 * Based on Apple's design language with glassmorphism effects
 */

/* CSS Custom Properties - Apple Color Palette */
:root {
  /* Apple Color System */
  --apple-black: #000000;
  --apple-gray: #666666;
  --apple-light-gray: #979797;
  --apple-off-white: #eeeeee;
  --apple-blue: #0088cc;
  --apple-white: #ffffff;
  
  /* Glassmorphism Properties */
  --apple-glass-bg: rgba(238, 238, 238, 0.1);
  --apple-glass-border: rgba(151, 151, 151, 0.2);
  --apple-glass-blur: 20px;
  
  /* Typography - Professional Font Stack */
  --apple-font-family: 'Inter', -apple-system, BlinkMacSystemFont, "San Francisco", "Segoe UI", "Roboto", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --apple-font-light: 300;
  --apple-font-regular: 400;
  --apple-font-medium: 500;
  --apple-font-semibold: 600;
  
  /* Spacing Scale (multiples of 8px) */
  --apple-space-1: 8px;
  --apple-space-2: 16px;
  --apple-space-3: 24px;
  --apple-space-4: 32px;
  --apple-space-5: 40px;
  --apple-space-6: 48px;
  --apple-space-7: 56px;
  --apple-space-8: 64px;
  --apple-space-10: 80px;
  
  /* Shadows */
  --apple-shadow-soft: 0 8px 32px rgba(0,0,0,0.08);
  --apple-shadow-medium: 0 12px 48px rgba(0,0,0,0.12);
  --apple-shadow-strong: 0 20px 64px rgba(0,0,0,0.16);
  
  /* Border Radius */
  --apple-radius-small: 8px;
  --apple-radius-medium: 12px;
  --apple-radius-large: 16px;
  --apple-radius-xlarge: 24px;
  
  /* Transitions */
  --apple-transition: 0.3s ease-in-out;
  --apple-transition-fast: 0.15s ease-out;
  --apple-transition-slow: 0.5s ease-in-out;
}

/* Base Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--apple-font-family);
  font-weight: var(--apple-font-regular);
  color: var(--apple-black);
  line-height: 1.5;
  background-color: var(--apple-white);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography System - Mobile First */
.display-1 {
  font-size: 2.5rem;
  font-weight: var(--apple-font-light);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--apple-space-4);
}

.display-2 {
  font-size: 2rem;
  font-weight: var(--apple-font-light);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: var(--apple-space-3);
}

.display-3 {
  font-size: 1.75rem;
  font-weight: var(--apple-font-regular);
  line-height: 1.4;
  margin-bottom: var(--apple-space-3);
}

.lead {
  font-size: 1.125rem;
  font-weight: var(--apple-font-regular);
  line-height: 1.6;
  color: var(--apple-gray);
  margin-bottom: var(--apple-space-3);
}

/* Desktop Typography */
@media (min-width: 768px) {
  .display-1 {
    font-size: 4.5rem;
  }
  
  .display-2 {
    font-size: 3.5rem;
  }
  
  .display-3 {
    font-size: 2.5rem;
  }
  
  .lead {
    font-size: 1.25rem;
  }
}

/* Apple Glass Navigation */
.apple-glass-nav {
  background: var(--apple-glass-bg);
  backdrop-filter: blur(var(--apple-glass-blur));
  -webkit-backdrop-filter: blur(var(--apple-glass-blur));
  border-bottom: 1px solid var(--apple-glass-border);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  transition: all var(--apple-transition);
  min-height: 70px;
}

@media (min-width: 992px) {
  .apple-glass-nav {
    min-height: 80px;
  }
}

.apple-glass-nav .navbar-brand {
  font-weight: var(--apple-font-semibold);
  font-size: 1.5rem;
  color: var(--apple-black);
  text-decoration: none;
  transition: opacity var(--apple-transition-fast);
}

.apple-glass-nav .navbar-brand:hover {
  opacity: 0.8;
}

.apple-glass-nav .nav-link {
  font-weight: var(--apple-font-medium);
  color: var(--apple-black);
  padding: var(--apple-space-2) var(--apple-space-3);
  transition: all var(--apple-transition-fast);
  border-radius: var(--apple-radius-small);
  margin: 0 var(--apple-space-1);
}

.apple-glass-nav .nav-link:hover {
  background: rgba(0,0,0,0.05);
  color: var(--apple-black);
}

.apple-glass-nav .navbar-toggler {
  border: none;
  padding: var(--apple-space-1);
  border-radius: var(--apple-radius-small);
  transition: all var(--apple-transition-fast);
}

.apple-glass-nav .navbar-toggler:focus {
  box-shadow: none;
  background: rgba(0,0,0,0.05);
}

/* Apple Button System */
.btn-apple-primary {
  background: var(--apple-blue);
  border: none;
  border-radius: var(--apple-radius-medium);
  padding: var(--apple-space-2) var(--apple-space-4);
  font-weight: var(--apple-font-medium);
  color: var(--apple-black);
  min-height: 44px;
  font-size: 1rem;
  transition: all var(--apple-transition-fast);
  box-shadow: 0 2px 8px rgba(0,136,204,0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.btn-apple-primary:hover {
  background: #0077b3;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,136,204,0.3);
  color: var(--apple-black);
}

.btn-apple-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0,136,204,0.2);
}

.btn-apple-glass {
  background: var(--apple-glass-bg);
  backdrop-filter: blur(var(--apple-glass-blur));
  -webkit-backdrop-filter: blur(var(--apple-glass-blur));
  border: 1px solid var(--apple-glass-border);
  border-radius: var(--apple-radius-medium);
  color: var(--apple-black);
  padding: var(--apple-space-2) var(--apple-space-4);
  font-weight: var(--apple-font-medium);
  min-height: 44px;
  font-size: 1rem;
  transition: all var(--apple-transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.btn-apple-glass:hover {
  background: rgba(238, 238, 238, 0.2);
  transform: translateY(-1px);
  box-shadow: var(--apple-shadow-soft);
  color: var(--apple-black);
}

.btn-apple-secondary {
  background: var(--apple-off-white);
  border: 1px solid rgba(151, 151, 151, 0.3);
  border-radius: var(--apple-radius-medium);
  color: var(--apple-black);
  padding: var(--apple-space-2) var(--apple-space-4);
  font-weight: var(--apple-font-medium);
  min-height: 44px;
  font-size: 1rem;
  transition: all var(--apple-transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.btn-apple-secondary:hover {
  background: #e0e0e0;
  transform: translateY(-1px);
  box-shadow: var(--apple-shadow-soft);
  color: var(--apple-black);
}

/* Mobile Button Optimization */
@media (max-width: 576px) {
  .btn-apple-primary,
  .btn-apple-glass,
  .btn-apple-secondary {
    width: 100%;
    margin-bottom: var(--apple-space-2);
  }
}

/* Apple Card System */
.card-apple {
  background: var(--apple-white);
  border: 1px solid rgba(151, 151, 151, 0.15);
  border-radius: var(--apple-radius-large);
  box-shadow: var(--apple-shadow-soft);
  transition: all var(--apple-transition);
  overflow: hidden;
}

.card-apple:hover {
  transform: translateY(-2px);
  box-shadow: var(--apple-shadow-medium);
}

.card-apple-glass {
  background: var(--apple-glass-bg);
  backdrop-filter: blur(var(--apple-glass-blur));
  -webkit-backdrop-filter: blur(var(--apple-glass-blur));
  border: 1px solid var(--apple-glass-border);
  border-radius: var(--apple-radius-large);
  transition: all var(--apple-transition);
  overflow: hidden;
}

.card-apple-glass:hover {
  background: rgba(238, 238, 238, 0.15);
  transform: translateY(-2px);
  box-shadow: var(--apple-shadow-soft);
}

.card-apple .card-body,
.card-apple-glass .card-body {
  padding: var(--apple-space-4);
}

.card-apple .card-title,
.card-apple-glass .card-title {
  font-weight: var(--apple-font-semibold);
  font-size: 1.25rem;
  margin-bottom: var(--apple-space-2);
  color: var(--apple-black);
}

.card-apple .card-text,
.card-apple-glass .card-text {
  color: var(--apple-gray);
  line-height: 1.6;
  margin-bottom: var(--apple-space-3);
}

/* Hero Section */
.hero-section {
  padding: var(--apple-space-8) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--apple-white) 0%, var(--apple-off-white) 100%);
}

@media (min-width: 768px) {
  .hero-section {
    padding: var(--apple-space-10) 0;
  }
}

.hero-section .display-1 {
  background: linear-gradient(135deg, var(--apple-black) 0%, var(--apple-gray) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Form Controls */
.form-control-apple {
  border: 1px solid rgba(151, 151, 151, 0.3);
  border-radius: var(--apple-radius-medium);
  padding: var(--apple-space-2) var(--apple-space-3);
  font-size: 1rem;
  font-family: var(--apple-font-family);
  min-height: 44px;
  transition: all var(--apple-transition-fast);
  background: var(--apple-white);
}

.form-control-apple:focus {
  outline: none;
  border-color: var(--apple-blue);
  box-shadow: 0 0 0 3px rgba(0,136,204,0.1);
}

.form-control-apple::placeholder {
  color: var(--apple-light-gray);
}

.form-label-apple {
  font-weight: var(--apple-font-medium);
  color: var(--apple-black);
  margin-bottom: var(--apple-space-1);
  display: block;
}

/* Glass Modal Overlay */
.modal-glass {
  background: rgba(0,0,0,0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.modal-glass .modal-content {
  background: var(--apple-white);
  border: none;
  border-radius: var(--apple-radius-large);
  box-shadow: var(--apple-shadow-strong);
  overflow: hidden;
}

.modal-glass .modal-header {
  border-bottom: 1px solid var(--apple-off-white);
  padding: var(--apple-space-4);
}

.modal-glass .modal-body {
  padding: var(--apple-space-4);
}

.modal-glass .modal-footer {
  border-top: 1px solid var(--apple-off-white);
  padding: var(--apple-space-4);
}

/* Apple Spacing Utilities */
.py-apple-1 { padding-top: var(--apple-space-1); padding-bottom: var(--apple-space-1); }
.py-apple-2 { padding-top: var(--apple-space-2); padding-bottom: var(--apple-space-2); }
.py-apple-3 { padding-top: var(--apple-space-3); padding-bottom: var(--apple-space-3); }
.py-apple-4 { padding-top: var(--apple-space-4); padding-bottom: var(--apple-space-4); }
.py-apple-5 { padding-top: var(--apple-space-5); padding-bottom: var(--apple-space-5); }
.py-apple-6 { padding-top: var(--apple-space-6); padding-bottom: var(--apple-space-6); }
.py-apple-8 { padding-top: var(--apple-space-8); padding-bottom: var(--apple-space-8); }
.py-apple-10 { padding-top: var(--apple-space-10); padding-bottom: var(--apple-space-10); }

.mt-apple-1 { margin-top: var(--apple-space-1); }
.mt-apple-2 { margin-top: var(--apple-space-2); }
.mt-apple-3 { margin-top: var(--apple-space-3); }
.mt-apple-4 { margin-top: var(--apple-space-4); }
.mt-apple-5 { margin-top: var(--apple-space-5); }
.mt-apple-6 { margin-top: var(--apple-space-6); }
.mt-apple-8 { margin-top: var(--apple-space-8); }
.mt-apple-10 { margin-top: var(--apple-space-10); }

/* Apple Shadow Utilities */
.shadow-apple-soft { box-shadow: var(--apple-shadow-soft); }
.shadow-apple-medium { box-shadow: var(--apple-shadow-medium); }
.shadow-apple-strong { box-shadow: var(--apple-shadow-strong); }

/* Loading States */
.loading-skeleton {
  background: linear-gradient(90deg, var(--apple-off-white) 25%, rgba(238,238,238,0.5) 50%, var(--apple-off-white) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Apple Badge System */
.badge-apple {
  background: var(--apple-glass-bg);
  backdrop-filter: blur(var(--apple-glass-blur));
  -webkit-backdrop-filter: blur(var(--apple-glass-blur));
  border: 1px solid var(--apple-glass-border);
  color: var(--apple-black);
  padding: var(--apple-space-1) var(--apple-space-2);
  border-radius: var(--apple-radius-small);
  font-size: 0.875rem;
  font-weight: var(--apple-font-medium);
}

.badge-priority-normal { background: rgba(151, 151, 151, 0.1); color: var(--apple-gray); }
.badge-priority-medium { background: rgba(255, 193, 7, 0.1); color: #b8860b; }
.badge-priority-high { background: rgba(255, 107, 107, 0.1); color: #dc3545; }
.badge-priority-critical { background: rgba(220, 53, 69, 0.1); color: #dc3545; }

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Focus States for Accessibility */
.btn-apple-primary:focus,
.btn-apple-glass:focus,
.btn-apple-secondary:focus,
.form-control-apple:focus {
  outline: 2px solid var(--apple-blue);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --apple-glass-bg: rgba(255, 255, 255, 0.9);
    --apple-glass-border: rgba(0, 0, 0, 0.3);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Apple table styles */
.table-apple {
  background: var(--apple-white);
  border-radius: var(--apple-radius-large);
  overflow: hidden;
  box-shadow: var(--apple-shadow-soft);
  border: none;
}

.table-apple th {
  background: var(--apple-off-white);
  border: none;
  font-weight: var(--apple-font-semibold);
  color: var(--apple-black);
  padding: var(--apple-space-3);
}

.table-apple td {
  border: none;
  border-bottom: 1px solid rgba(151, 151, 151, 0.1);
  padding: var(--apple-space-3);
  vertical-align: middle;
}

.table-apple tbody tr:hover {
  background: rgba(238, 238, 238, 0.3);
}

/* Floating Action Button */
.fab-apple {
  position: fixed;
  bottom: var(--apple-space-4);
  right: var(--apple-space-4);
  width: 56px;
  height: 56px;
  background: var(--apple-blue);
  border-radius: 50%;
  border: none;
  color: var(--apple-black);
  font-size: 1.5rem;
  box-shadow: var(--apple-shadow-medium);
  transition: all var(--apple-transition-fast);
  z-index: 1000;
}

.fab-apple:hover {
  transform: scale(1.1);
  box-shadow: var(--apple-shadow-strong);
}

/* Railway-specific styling */
.railway-dual-logo {
  display: flex;
  align-items: center;
  gap: var(--apple-space-2);
}

.railway-dual-logo img {
  height: 40px;
  width: auto;
}

@media (min-width: 768px) {
  .railway-dual-logo img {
    height: 48px;
  }
}

/* Marquee styling */
.marquee-container {
  background: var(--apple-blue);
  color: var(--apple-black);
  padding: var(--apple-space-2) 0;
  overflow: hidden;
  white-space: nowrap;
}

.marquee-content {
  display: inline-block;
  animation: marquee 45s linear infinite;
  padding-left: 20%;
}

@keyframes marquee {
  0% { transform: translate3d(0%, 0, 0); }
  100% { transform: translate3d(-100%, 0, 0); }
}

/* Priority color system */
.priority-normal { color: var(--apple-gray); }
.priority-medium { color: #f39c12; }
.priority-high { color: #e74c3c; }
.priority-critical { color: #c0392b; font-weight: var(--apple-font-semibold); }

/* Status color system */
.status-pending { color: var(--apple-blue); }
.status-awaiting-feedback { color: #f39c12; }
.status-awaiting-info { color: #e67e22; }
.status-awaiting-approval { color: #9b59b6; }
.status-closed { color: #27ae60; }

/* Additional Apple Design Components */

/* Apple Alert System */
.alert-apple {
    border: none;
    border-radius: var(--apple-radius-medium);
    padding: var(--apple-space-3) var(--apple-space-4);
    margin-bottom: var(--apple-space-3);
    font-weight: var(--apple-font-medium);
    box-shadow: var(--apple-shadow-soft);
}

.alert-apple-success {
    background: rgba(76, 175, 80, 0.1);
    color: #2e7d32;
    border-left: 4px solid #4caf50;
}

.alert-apple-danger {
    background: rgba(244, 67, 54, 0.1);
    color: #c62828;
    border-left: 4px solid #f44336;
}

.alert-apple-warning {
    background: rgba(255, 193, 7, 0.1);
    color: #f57c00;
    border-left: 4px solid #ffc107;
}

.alert-apple-info {
    background: rgba(33, 150, 243, 0.1);
    color: #1565c0;
    border-left: 4px solid #2196f3;
}

/* Apple Progress Bars */
.progress-apple {
    height: 8px;
    background: var(--apple-off-white);
    border-radius: var(--apple-radius-small);
    overflow: hidden;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
}

.progress-apple .progress-bar {
    background: linear-gradient(90deg, var(--apple-blue) 0%, #0077b3 100%);
    border-radius: var(--apple-radius-small);
    transition: width 0.6s ease;
}

/* Apple Tabs */
.nav-tabs-apple {
    border-bottom: 2px solid var(--apple-off-white);
    margin-bottom: var(--apple-space-4);
}

.nav-tabs-apple .nav-link {
    border: none;
    border-radius: var(--apple-radius-medium) var(--apple-radius-medium) 0 0;
    padding: var(--apple-space-2) var(--apple-space-4);
    font-weight: var(--apple-font-medium);
    color: var(--apple-gray);
    background: transparent;
    transition: all var(--apple-transition-fast);
}

.nav-tabs-apple .nav-link:hover {
    background: rgba(0, 136, 204, 0.05);
    color: var(--apple-blue);
    border-color: transparent;
}

.nav-tabs-apple .nav-link.active {
    background: var(--apple-white);
    color: var(--apple-blue);
    border-bottom: 2px solid var(--apple-blue);
    box-shadow: 0 -2px 8px rgba(0,0,0,0.05);
}

/* Apple Breadcrumb */
.breadcrumb-apple {
    background: transparent;
    padding: 0;
    margin-bottom: var(--apple-space-4);
}

.breadcrumb-apple .breadcrumb-item {
    font-size: 0.875rem;
    color: var(--apple-gray);
}

.breadcrumb-apple .breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    color: var(--apple-light-gray);
    font-weight: bold;
}

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

/* Apple Pagination */
.pagination-apple .page-link {
    border: 1px solid rgba(151, 151, 151, 0.2);
    color: var(--apple-black);
    padding: var(--apple-space-2) var(--apple-space-3);
    margin: 0 2px;
    border-radius: var(--apple-radius-small);
    font-weight: var(--apple-font-medium);
    transition: all var(--apple-transition-fast);
}

.pagination-apple .page-link:hover {
    background: var(--apple-blue);
    color: var(--apple-black);
    border-color: var(--apple-blue);
    transform: translateY(-1px);
}

.pagination-apple .page-item.active .page-link {
    background: var(--apple-blue);
    border-color: var(--apple-blue);
    color: var(--apple-black);
}

.pagination-apple .page-item.disabled .page-link {
    background: var(--apple-off-white);
    color: var(--apple-light-gray);
    border-color: rgba(151, 151, 151, 0.1);
}

/* Apple Dropdown Enhancements */
.dropdown-menu-apple {
    border: none;
    border-radius: var(--apple-radius-large);
    box-shadow: var(--apple-shadow-medium);
    padding: var(--apple-space-2);
    margin-top: var(--apple-space-1);
    backdrop-filter: blur(var(--apple-glass-blur));
    -webkit-backdrop-filter: blur(var(--apple-glass-blur));
    background: rgba(255, 255, 255, 0.95);
}

.dropdown-menu-apple .dropdown-item {
    border-radius: var(--apple-radius-small);
    padding: var(--apple-space-2) var(--apple-space-3);
    margin: 2px 0;
    font-weight: var(--apple-font-medium);
    transition: all var(--apple-transition-fast);
}

.dropdown-menu-apple .dropdown-item:hover {
    background: rgba(0, 136, 204, 0.1);
    color: var(--apple-blue);
}

.dropdown-menu-apple .dropdown-divider {
    margin: var(--apple-space-2) 0;
    border-color: rgba(151, 151, 151, 0.2);
}

/* Apple Form Enhancements */
.form-floating-apple {
    position: relative;
}

.form-floating-apple .form-control {
    height: calc(3.5rem + 2px);
    line-height: 1.25;
    padding: 1rem 0.75rem;
}

.form-floating-apple > label {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    padding: 1rem 0.75rem;
    pointer-events: none;
    border: 1px solid transparent;
    transform-origin: 0 0;
    transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
    color: var(--apple-light-gray);
}

.form-floating-apple .form-control:focus ~ label,
.form-floating-apple .form-control:not(:placeholder-shown) ~ label {
    opacity: 0.65;
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
    color: var(--apple-blue);
}

/* Apple List Group */
.list-group-apple {
    border-radius: var(--apple-radius-large);
    overflow: hidden;
    box-shadow: var(--apple-shadow-soft);
}

.list-group-apple .list-group-item {
    border: none;
    border-bottom: 1px solid rgba(151, 151, 151, 0.1);
    padding: var(--apple-space-3) var(--apple-space-4);
    font-weight: var(--apple-font-medium);
    transition: all var(--apple-transition-fast);
}

.list-group-apple .list-group-item:last-child {
    border-bottom: none;
}

.list-group-apple .list-group-item:hover {
    background: rgba(0, 136, 204, 0.05);
    transform: translateX(4px);
}

.list-group-apple .list-group-item.active {
    background: var(--apple-blue);
    color: var(--apple-black);
    border-color: var(--apple-blue);
}

/* Apple Spinner */
.spinner-apple {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    border: 0.25em solid rgba(0, 136, 204, 0.25);
    border-right-color: var(--apple-blue);
    border-radius: 50%;
    animation: spinner-apple 0.75s linear infinite;
}

@keyframes spinner-apple {
    to {
        transform: rotate(360deg);
    }
}

/* Apple Toast Notifications */
.toast-apple {
    background: var(--apple-white);
    border: none;
    border-radius: var(--apple-radius-large);
    box-shadow: var(--apple-shadow-medium);
    backdrop-filter: blur(var(--apple-glass-blur));
    -webkit-backdrop-filter: blur(var(--apple-glass-blur));
}

.toast-apple .toast-header {
    background: transparent;
    border-bottom: 1px solid rgba(151, 151, 151, 0.1);
    font-weight: var(--apple-font-semibold);
}

.toast-apple .toast-body {
    padding: var(--apple-space-3) var(--apple-space-4);
}

/* Apple Accordion */
.accordion-apple .accordion-item {
    border: 1px solid rgba(151, 151, 151, 0.15);
    border-radius: var(--apple-radius-medium);
    margin-bottom: var(--apple-space-2);
    overflow: hidden;
    box-shadow: var(--apple-shadow-soft);
}

.accordion-apple .accordion-header .accordion-button {
    background: var(--apple-white);
    border: none;
    font-weight: var(--apple-font-semibold);
    color: var(--apple-black);
    padding: var(--apple-space-3) var(--apple-space-4);
    box-shadow: none;
}

.accordion-apple .accordion-header .accordion-button:not(.collapsed) {
    background: var(--apple-blue);
    color: var(--apple-black);
}

.accordion-apple .accordion-header .accordion-button:focus {
    box-shadow: 0 0 0 3px rgba(0, 136, 204, 0.1);
}

.accordion-apple .accordion-body {
    padding: var(--apple-space-4);
    background: var(--apple-white);
}

/* Apple Offcanvas */
.offcanvas-apple {
    background: var(--apple-white);
    border: none;
    box-shadow: var(--apple-shadow-strong);
}

.offcanvas-apple .offcanvas-header {
    border-bottom: 1px solid rgba(151, 151, 151, 0.1);
    padding: var(--apple-space-4);
}

.offcanvas-apple .offcanvas-body {
    padding: var(--apple-space-4);
}

/* Apple Carousel */
.carousel-apple .carousel-indicators {
    bottom: -50px;
}

.carousel-apple .carousel-indicators [data-bs-target] {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(151, 151, 151, 0.3);
    border: none;
    margin: 0 4px;
    transition: all var(--apple-transition-fast);
}

.carousel-apple .carousel-indicators .active {
    background: var(--apple-blue);
    transform: scale(1.2);
}

.carousel-apple .carousel-control-prev,
.carousel-apple .carousel-control-next {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.8;
    transition: all var(--apple-transition-fast);
}

.carousel-apple .carousel-control-prev:hover,
.carousel-apple .carousel-control-next:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

/* Apple Modal Enhancements */
.modal-apple .modal-content {
    border: none;
    border-radius: var(--apple-radius-large);
    box-shadow: var(--apple-shadow-strong);
    backdrop-filter: blur(var(--apple-glass-blur));
    -webkit-backdrop-filter: blur(var(--apple-glass-blur));
}

.modal-apple .modal-header {
    border-bottom: 1px solid rgba(151, 151, 151, 0.1);
    padding: var(--apple-space-4);
}

.modal-apple .modal-body {
    padding: var(--apple-space-4);
}

.modal-apple .modal-footer {
    border-top: 1px solid rgba(151, 151, 151, 0.1);
    padding: var(--apple-space-4);
}

/* Apple Tooltip */
.tooltip-apple .tooltip-inner {
    background: var(--apple-black);
    color: var(--apple-black);
    border-radius: var(--apple-radius-small);
    font-weight: var(--apple-font-medium);
    padding: var(--apple-space-2) var(--apple-space-3);
}

.tooltip-apple .tooltip-arrow::before {
    border-top-color: var(--apple-black);
}

/* Apple Popover */
.popover-apple {
    border: none;
    border-radius: var(--apple-radius-large);
    box-shadow: var(--apple-shadow-medium);
    backdrop-filter: blur(var(--apple-glass-blur));
    -webkit-backdrop-filter: blur(var(--apple-glass-blur));
}

.popover-apple .popover-header {
    background: var(--apple-off-white);
    border-bottom: 1px solid rgba(151, 151, 151, 0.1);
    font-weight: var(--apple-font-semibold);
    color: var(--apple-black);
}

.popover-apple .popover-body {
    padding: var(--apple-space-3) var(--apple-space-4);
}

/* Apple Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--apple-off-white);
    border-radius: var(--apple-radius-small);
}

::-webkit-scrollbar-thumb {
    background: var(--apple-light-gray);
    border-radius: var(--apple-radius-small);
    transition: background var(--apple-transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--apple-gray);
}

/* Apple Selection */
::selection {
    background: rgba(0, 136, 204, 0.2);
    color: var(--apple-black);
}

::-moz-selection {
    background: rgba(0, 136, 204, 0.2);
    color: var(--apple-black);
}

/* Apple Focus Ring */
.focus-ring-apple:focus {
    outline: 2px solid var(--apple-blue);
    outline-offset: 2px;
}

/* Apple Print Styles */
@media print {
    .apple-glass-nav,
    .btn-apple-primary,
    .btn-apple-glass,
    .btn-apple-secondary,
    .fab-apple {
        display: none !important;
    }
    
    .card-apple,
    .card-apple-glass {
        box-shadow: none !important;
        border: 1px solid #000 !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .display-1, .display-2, .display-3 {
        font-size: 18pt;
        font-weight: bold;
    }
}

/* ===== VISIBILITY FIXES FOR WHITE TEXT ON COLORED BACKGROUNDS ===== */

/* Ensure Bootstrap background colors work properly with white text */
.bg-primary {
    background-color: #0d6efd !important;
    color: #ffffff !important;
}

.bg-primary.text-white,
.bg-primary .text-white {
    color: #ffffff !important;
}

.bg-success {
    background-color: #198754 !important;
    color: #ffffff !important;
}

.bg-success.text-white,
.bg-success .text-white {
    color: #ffffff !important;
}

.bg-danger {
    background-color: #dc3545 !important;
    color: #ffffff !important;
}

.bg-danger.text-white,
.bg-danger .text-white {
    color: #ffffff !important;
}

.bg-warning {
    background-color: #ffc107 !important;
    color: #000000 !important; /* Warning background needs dark text */
}

.bg-warning.text-white,
.bg-warning .text-white {
    color: #000000 !important; /* Override white text on warning background */
}

.bg-info {
    background-color: #0dcaf0 !important;
    color: #000000 !important; /* Info background needs dark text */
}

.bg-info.text-white,
.bg-info .text-white {
    color: #000000 !important; /* Override white text on info background */
}

.bg-secondary {
    background-color: #6c757d !important;
    color: #ffffff !important;
}

.bg-secondary.text-white,
.bg-secondary .text-white {
    color: #ffffff !important;
}

/* Fix for cards with colored backgrounds */
.card.bg-primary,
.card.bg-success,
.card.bg-danger,
.card.bg-secondary {
    border: none !important;
}

.card.bg-primary .card-body,
.card.bg-success .card-body,
.card.bg-danger .card-body,
.card.bg-secondary .card-body {
    color: inherit !important;
}

.card.bg-warning .card-body,
.card.bg-info .card-body {
    color: #000000 !important;
}

/* Fix for icons in colored backgrounds */
.bg-primary i,
.bg-success i,
.bg-danger i,
.bg-secondary i {
    color: #ffffff !important;
}

.bg-warning i,
.bg-info i {
    color: #000000 !important;
}

/* Fix for text-white class when used with colored backgrounds */
.text-white {
    color: #ffffff !important;
}

/* Override text-white on warning and info backgrounds */
.bg-warning .text-white,
.bg-info .text-white {
    color: #000000 !important;
}

/* Ensure proper contrast for all text elements */
.bg-primary h1, .bg-primary h2, .bg-primary h3, .bg-primary h4, .bg-primary h5, .bg-primary h6,
.bg-success h1, .bg-success h2, .bg-success h3, .bg-success h4, .bg-success h5, .bg-success h6,
.bg-danger h1, .bg-danger h2, .bg-danger h3, .bg-danger h4, .bg-danger h5, .bg-danger h6,
.bg-secondary h1, .bg-secondary h2, .bg-secondary h3, .bg-secondary h4, .bg-secondary h5, .bg-secondary h6 {
    color: #ffffff !important;
}

.bg-warning h1, .bg-warning h2, .bg-warning h3, .bg-warning h4, .bg-warning h5, .bg-warning h6,
.bg-info h1, .bg-info h2, .bg-info h3, .bg-info h4, .bg-info h5, .bg-info h6 {
    color: #000000 !important;
}

/* Fix for small text elements */
.bg-primary small,
.bg-success small,
.bg-danger small,
.bg-secondary small {
    color: rgba(255, 255, 255, 0.8) !important;
}

.bg-warning small,
.bg-info small {
    color: rgba(0, 0, 0, 0.7) !important;
}

/* Fix for card titles and text */
.card.bg-primary .card-title,
.card.bg-success .card-title,
.card.bg-danger .card-title,
.card.bg-secondary .card-title {
    color: #ffffff !important;
}

.card.bg-warning .card-title,
.card.bg-info .card-title {
    color: #000000 !important;
}

/* Fix for badges in colored backgrounds */
.bg-primary .badge,
.bg-success .badge,
.bg-danger .badge,
.bg-secondary .badge {
    background-color: rgba(255, 255, 255, 0.2) !important;
    color: #ffffff !important;
}

.bg-warning .badge,
.bg-info .badge {
    background-color: rgba(0, 0, 0, 0.1) !important;
    color: #000000 !important;
}

/* High contrast mode support for colored backgrounds */
@media (prefers-contrast: high) {
    .bg-primary,
    .bg-success,
    .bg-danger,
    .bg-secondary {
        border: 2px solid #000000 !important;
    }
    
    .bg-warning,
    .bg-info {
        border: 2px solid #000000 !important;
        background-color: #ffffff !important;
        color: #000000 !important;
    }
}

/* Fix for custom Apple blue background */
.bg-apple-blue {
    background-color: var(--apple-blue) !important;
    color: #ffffff !important;
}

.bg-apple-blue i,
.bg-apple-blue .text-white {
    color: #ffffff !important;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .bg-primary {
        background-color: #0a58ca !important;
    }
    
    .bg-success {
        background-color: #146c43 !important;
    }
    
    .bg-danger {
        background-color: #b02a37 !important;
    }
    
    .bg-warning {
        background-color: #ffcd39 !important;
        color: #000000 !important;
    }
    
    .bg-info {
        background-color: #3dd5f3 !important;
        color: #000000 !important;
    }
    
    .bg-secondary {
        background-color: #495057 !important;
    }
    
    .bg-apple-blue {
        background-color: #0077b3 !important;
        color: #ffffff !important;
    }
}

/* ===== PASSWORD FIELD VALIDATION ICON FIX ===== */
/* Override Bootstrap validation styles to prevent icon overlapping with password toggle buttons */

/* Position-relative password fields (signup, login) */
.position-relative .form-control-apple[type="password"].is-valid,
.position-relative .form-control[type="password"].is-valid,
.was-validated .position-relative .form-control-apple[type="password"]:valid,
.was-validated .position-relative .form-control[type="password"]:valid,
body .position-relative .form-control-apple[type="password"].is-valid,
body .position-relative .form-control[type="password"].is-valid {
    background-position: right 3.5rem center !important;
    padding-right: 4rem !important;
}

.position-relative .form-control-apple[type="password"].is-invalid,
.position-relative .form-control[type="password"].is-invalid,
.was-validated .position-relative .form-control-apple[type="password"]:invalid,
.was-validated .position-relative .form-control[type="password"]:invalid,
body .position-relative .form-control-apple[type="password"].is-invalid,
body .position-relative .form-control[type="password"].is-invalid {
    background-position: right 3.5rem center !important;
    padding-right: 4rem !important;
}

/* Input-group password fields (change-password, admin forms) */
.input-group .form-control-apple[type="password"].is-valid,
.input-group .form-control[type="password"].is-valid,
.was-validated .input-group .form-control-apple[type="password"]:valid,
.was-validated .input-group .form-control[type="password"]:valid,
body .input-group .form-control-apple[type="password"].is-valid,
body .input-group .form-control[type="password"].is-valid {
    background-position: right calc(0.75rem + 40px) center !important;
    padding-right: calc(0.75rem + 45px) !important;
}

.input-group .form-control-apple[type="password"].is-invalid,
.input-group .form-control[type="password"].is-invalid,
.was-validated .input-group .form-control-apple[type="password"]:invalid,
.was-validated .input-group .form-control[type="password"]:invalid,
body .input-group .form-control-apple[type="password"].is-invalid,
body .input-group .form-control[type="password"].is-invalid {
    background-position: right calc(0.75rem + 40px) center !important;
    padding-right: calc(0.75rem + 45px) !important;
}

/* Ensure password toggle buttons are above validation icons */
.position-relative .btn-link,
.input-group .btn {
    z-index: 10 !important;
}