/**
 * Premium Modal Styles
 * Professional UI/UX for Volunteer Application Modal
 * Optimized for 60fps animations and accessibility
 */

/* ==================== CSS Custom Properties (Design Tokens) ==================== */
:root {
  /* Premium Color Palette */
  --premium-primary: #667eea;
  --premium-primary-dark: #5568d3;
  --premium-secondary: #764ba2;
  --premium-accent: #f093fb;
  --premium-success: #10b981;
  --premium-warning: #f59e0b;
  --premium-danger: #ef4444;

  /* Neutral Colors */
  --premium-gray-50: #f9fafb;
  --premium-gray-100: #f3f4f6;
  --premium-gray-200: #e5e7eb;
  --premium-gray-300: #d1d5db;
  --premium-gray-400: #9ca3af;
  --premium-gray-500: #6b7280;
  --premium-gray-600: #4b5563;
  --premium-gray-700: #374151;
  --premium-gray-800: #1f2937;
  --premium-gray-900: #111827;

  /* Spacing Scale (4px base) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 50px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
  --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== Modal Animations ==================== */

/* Modal Enter Animation */
@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Modal Exit Animation */
@keyframes modalSlideOut {
  from {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
  to {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
}

/* Content Stagger Animation */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Shimmer Loading Animation */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

/* Pulse Animation */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Spinner Rotation */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Tag Pop Animation */
@keyframes tagPop {
  0% {
    transform: scale(0.9);
    opacity: 0;
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Icon Float Animation */
@keyframes iconFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

/* Header Pulse Effect */
@keyframes headerPulse {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* ==================== Premium Modal Enhancements ==================== */

/* Modal Container */
.modal.show .modal-dialog {
  animation: modalSlideIn var(--transition-slower) forwards;
}

.modal-dialog {
  transition: transform var(--transition-slow);
}

/* Modal Content */
.premium-modal-content {
  border-radius: var(--radius-xl) !important;
  overflow: hidden;
  box-shadow: var(--shadow-2xl) !important;
  border: none !important;
  backdrop-filter: blur(20px);
}

/* Premium Header */
.premium-modal-header {
  background: linear-gradient(135deg, var(--premium-primary) 0%, var(--premium-secondary) 100%);
  background-size: 200% 200%;
  animation: headerPulse 8s ease infinite;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2) !important;
}

.premium-modal-header .modal-icon-wrapper {
  transition: transform var(--transition-base);
}

.premium-modal-header .modal-icon-wrapper:hover {
  transform: translateY(-2px) scale(1.05);
  animation: iconFloat 2s ease-in-out infinite;
}

/* Close Button Enhancements */
.premium-close-btn {
  transition: all var(--transition-base);
  opacity: 0.9 !important;
}

.premium-close-btn:hover {
  opacity: 1 !important;
  transform: rotate(90deg) scale(1.1);
  background-color: rgba(255, 255, 255, 0.2) !important;
}

/* Status Badge */
.premium-status-badge {
  transition: all var(--transition-base);
  cursor: default;
}

.premium-status-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px -2px rgba(0, 0, 0, 0.2);
}

/* ==================== Content Sections ==================== */

/* Section Cards */
.premium-section-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--premium-gray-200);
  transition: all var(--transition-base);
  animation: fadeInUp var(--transition-slow) ease-out;
  animation-fill-mode: backwards;
}

.premium-section-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--premium-primary);
}

/* Stagger delays for sections */
.premium-section-card:nth-child(1) { animation-delay: 0ms; }
.premium-section-card:nth-child(2) { animation-delay: 50ms; }
.premium-section-card:nth-child(3) { animation-delay: 100ms; }
.premium-section-card:nth-child(4) { animation-delay: 150ms; }
.premium-section-card:nth-child(5) { animation-delay: 200ms; }
.premium-section-card:nth-child(6) { animation-delay: 250ms; }

/* Section Headers */
.premium-section-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--premium-gray-100);
}

.premium-section-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--premium-primary) 0%, var(--premium-secondary) 100%);
  color: white;
  font-size: 1.25rem;
  transition: transform var(--transition-base);
}

.premium-section-card:hover .premium-section-icon {
  transform: scale(1.1) rotate(5deg);
}

/* ==================== Field Groups ==================== */

.premium-field-group {
  background: linear-gradient(to right, var(--premium-gray-50) 0%, white 100%);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  border-left: 3px solid var(--premium-primary);
  transition: all var(--transition-base);
}

.premium-field-group:hover {
  background: white;
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
  border-left-color: var(--premium-secondary);
}

.premium-field-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--premium-gray-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.premium-field-value {
  font-size: 1rem;
  color: var(--premium-gray-900);
  font-weight: 500;
}

/* ==================== Loading States ==================== */

/* Loading Skeleton */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--premium-gray-200) 25%,
    var(--premium-gray-100) 50%,
    var(--premium-gray-200) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
  border-radius: var(--radius-sm);
}

.skeleton-text {
  height: 16px;
  margin-bottom: var(--space-sm);
}

.skeleton-title {
  height: 24px;
  width: 60%;
  margin-bottom: var(--space-md);
}

.skeleton-box {
  height: 100px;
  width: 100%;
  border-radius: var(--radius-md);
}

/* Loading Spinner */
.premium-spinner {
  display: inline-block;
  width: 3rem;
  height: 3rem;
  border: 4px solid var(--premium-gray-200);
  border-top-color: var(--premium-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.premium-loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl);
  gap: var(--space-lg);
}

.premium-loading-text {
  color: var(--premium-gray-600);
  font-size: 1rem;
  animation: pulse 2s ease-in-out infinite;
}

/* ==================== Badges & Tags ==================== */

.premium-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--premium-success) 0%, #059669 100%);
  color: white;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  animation: tagPop 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.premium-badge:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.premium-badge-icon {
  font-size: 0.75rem;
}

/* ==================== Buttons ==================== */

.premium-btn {
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  background: linear-gradient(135deg, var(--premium-primary) 0%, var(--premium-secondary) 100%);
  color: white;
  border: none;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  cursor: pointer;
}

.premium-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background-size: 150% 150%;
}

.premium-btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.premium-btn-outline {
  background: white;
  color: var(--premium-primary);
  border: 2px solid var(--premium-primary);
}

.premium-btn-outline:hover {
  background: var(--premium-primary);
  color: white;
}

/* ==================== Scroll Enhancements ==================== */

/* Custom Scrollbar */
.premium-modal-body::-webkit-scrollbar {
  width: 12px;
}

.premium-modal-body::-webkit-scrollbar-track {
  background: var(--premium-gray-100);
  border-radius: var(--radius-sm);
}

.premium-modal-body::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--premium-primary) 0%, var(--premium-secondary) 100%);
  border-radius: var(--radius-sm);
  border: 2px solid var(--premium-gray-100);
}

.premium-modal-body::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--premium-primary-dark) 0%, var(--premium-secondary) 100%);
}

/* ==================== Micro-interactions ==================== */

/* Icon Animations */
.premium-icon {
  transition: transform var(--transition-base);
}

.premium-field-group:hover .premium-icon {
  transform: scale(1.2);
}

/* Tooltip Enhancement */
[data-bs-toggle="tooltip"] {
  cursor: help;
  position: relative;
}

/* ==================== Responsive Design ==================== */

@media (max-width: 768px) {
  .premium-modal-header {
    padding: var(--space-md) var(--space-lg);
    flex-direction: column;
    text-align: center;
  }

  .premium-section-card {
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
  }

  .premium-field-group {
    padding: var(--space-sm) var(--space-md);
  }

  .premium-btn {
    width: 100%;
  }
}

/* ==================== Accessibility ==================== */

/* Focus States */
.premium-modal-content *:focus-visible {
  outline: 3px solid var(--premium-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

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

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .premium-section-card {
    border: 3px solid var(--premium-gray-900);
  }

  .premium-badge {
    border: 2px solid var(--premium-gray-900);
  }
}

/* ==================== Print Styles ==================== */

@media print {
  .premium-modal-header {
    background: white !important;
    color: black !important;
    print-color-adjust: exact;
  }

  .premium-close-btn,
  .premium-btn {
    display: none !important;
  }

  .premium-section-card {
    break-inside: avoid;
    page-break-inside: avoid;
  }
}