/* ===================================
   EVENT DETAIL PAGE - PROFESSIONAL BUSINESS DESIGN
   =================================== */

/* CSS Variables for consistent theming */
:root {
  --primary-color: #0066cc;
  --primary-dark: #004499;
  --primary-light: #3385d6;
  --secondary-color: #2c3e50;
  --accent-color: #34495e;
  --success-color: #27ae60;
  --warning-color: #f39c12;
  --danger-color: #e74c3c;
  --neutral-50: #f8f9fa;
  --neutral-100: #f1f3f5;
  --neutral-200: #e9ecef;
  --neutral-300: #dee2e6;
  --neutral-400: #ced4da;
  --neutral-500: #adb5bd;
  --neutral-600: #6c757d;
  --neutral-700: #495057;
  --neutral-800: #343a40;
  --neutral-900: #212529;
  --white: #ffffff;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.2);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Event Detail Hero Section */
.event-detail-hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 4rem 0 3rem;
  position: relative;
  overflow: hidden;
}

.event-detail-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(255, 255, 255, 0.05) 25%, transparent 25%, transparent 75%, rgba(255, 255, 255, 0.05) 75%), 
              linear-gradient(45deg, rgba(255, 255, 255, 0.05) 25%, transparent 25%, transparent 75%, rgba(255, 255, 255, 0.05) 75%);
  background-size: 60px 60px;
  background-position: 0 0, 30px 30px;
  opacity: 0.1;
}

.event-detail-hero .container {
  position: relative;
  z-index: 2;
}

.event-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1.5rem;
}

.event-status-badge--upcoming {
  background: rgba(39, 174, 96, 0.2);
  color: #27ae60;
  border: 1px solid rgba(39, 174, 96, 0.3);
}

.event-status-badge--past {
  background: rgba(108, 117, 125, 0.2);
  color: var(--neutral-400);
  border: 1px solid rgba(108, 117, 125, 0.3);
}

.event-detail-title {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 2rem;
  color: var(--white);
}

.event-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2rem;
}

.event-meta-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
  font-weight: 500;
}

.event-meta-item i {
  width: 20px;
  text-align: center;
  color: rgba(255, 255, 255, 0.8);
}

/* Event Detail Content Section */
.event-detail-content {
  padding: 4rem 0;
  background: var(--neutral-50);
}

.event-detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

/* Main Content Area */
.event-main-content {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-200);
}

/* Event Featured Image */
.event-featured-image {
  margin-bottom: 2.5rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--neutral-100);
  position: relative;
}

.event-detail-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: var(--transition);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--neutral-100), var(--neutral-200));
}

.event-detail-image:hover {
  transform: scale(1.02);
}

/* Image loading placeholder */
.event-detail-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--neutral-100), var(--neutral-200));
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Image overlay for better text readability if needed */
.event-featured-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.3));
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}

.event-featured-image:hover::after {
  opacity: 1;
}

/* Image caption support (for future use) */
.event-image-caption {
  padding: 1rem;
  background: var(--neutral-50);
  color: var(--neutral-600);
  font-size: 0.875rem;
  font-style: italic;
  text-align: center;
  border-top: 1px solid var(--neutral-200);
}

.event-main-content h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 3px solid var(--primary-color);
  position: relative;
}

.event-main-content h2::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--primary-light);
}

.event-description {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--neutral-700);
  margin-bottom: 2.5rem;
}

.event-description p {
  margin-bottom: 1.5rem;
}

/* Event Actions */
.event-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--neutral-200);
}

/* Button Styles */
.btn-event-primary,
.btn-event-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: var(--transition);
  border: 2px solid;
  cursor: pointer;
  text-align: center;
  justify-content: center;
  min-height: 52px;
}

.btn-event-primary {
  background: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
}

.btn-event-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-event-secondary {
  background: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-event-secondary:hover {
  background: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Sidebar */
.event-sidebar {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-200);
  height: fit-content;
  position: sticky;
  top: 2rem;
}

.event-sidebar h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--neutral-200);
}

.event-info-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.event-info-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--neutral-100);
}

.event-info-list li:last-child {
  border-bottom: none;
}

.event-info-list i {
  width: 20px;
  text-align: center;
  color: var(--primary-color);
  font-size: 1.125rem;
  margin-top: 0.25rem;
}

.event-info-content {
  flex: 1;
}

.event-info-content strong {
  display: block;
  font-weight: 600;
  color: var(--secondary-color);
  margin-bottom: 0.25rem;
}

.event-info-content span {
  color: var(--neutral-600);
  font-size: 0.95rem;
}

/* Event Share Section */
.event-share {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--neutral-200);
}

.share-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.share-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--neutral-100);
  color: var(--neutral-600);
  text-decoration: none;
  transition: var(--transition);
}

.share-links a:hover {
  background: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
}

/* Back to Events Link */
.back-to-events {
  text-align: center;
  margin-top: 3rem;
}

.back-to-events .btn-event-secondary {
  font-size: 1.125rem;
  padding: 1.25rem 2.5rem;
}

/* Registration Modal Styles */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  padding: 1rem;
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.registration-modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(20px);
  transition: var(--transition);
}

.modal-backdrop.active .registration-modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: 2rem 2rem 1rem;
  border-bottom: 2px solid var(--neutral-100);
  position: relative;
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--neutral-500);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--neutral-100);
  color: var(--neutral-700);
}

.event-modal-info h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: 1rem;
  line-height: 1.3;
}

.event-modal-details {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.event-modal-detail {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--neutral-600);
  font-size: 0.95rem;
}

.event-modal-detail i {
  color: var(--primary-color);
  width: 16px;
  text-align: center;
}

.modal-body {
  padding: 1.5rem 2rem 2rem;
}

/* Modal Form Styles */
.modal-form {
  margin-top: 1rem;
}

.modal-form-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--secondary-color);
  margin-bottom: 1.5rem;
}

.modal-form-group {
  margin-bottom: 1.5rem;
}

.modal-form-group label {
  display: block;
  font-weight: 600;
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}

.modal-form-group input,
.modal-form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: var(--transition);
  background: var(--white);
}

.modal-form-group input:focus,
.modal-form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.modal-register-btn {
  width: 100%;
  padding: 1.25rem;
  background: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: var(--radius-md);
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 1rem;
}

.modal-register-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.modal-register-btn.loading {
  background: var(--neutral-400);
  cursor: not-allowed;
  transform: none;
}

/* Modal Alerts */
.modal-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.modal-alert i {
  font-size: 1.125rem;
}

.modal-alert.success {
  background: rgba(39, 174, 96, 0.1);
  color: #27ae60;
  border: 1px solid rgba(39, 174, 96, 0.2);
}

.modal-alert.error {
  background: rgba(231, 76, 60, 0.1);
  color: #e74c3c;
  border: 1px solid rgba(231, 76, 60, 0.2);
}

.modal-alert.warning {
  background: rgba(243, 156, 18, 0.1);
  color: #f39c12;
  border: 1px solid rgba(243, 156, 18, 0.2);
}

.modal-capacity-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--neutral-50);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--primary-color);
}

.modal-loading {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--neutral-600);
}

.modal-loading i {
  font-size: 2rem;
  color: var(--primary-color);
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
  display: block;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .event-detail-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .event-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .event-detail-hero {
    padding: 3rem 0 2rem;
  }
  
  .event-detail-title {
    font-size: 2.25rem;
  }
  
  .event-detail-meta {
    flex-direction: column;
    gap: 1rem;
  }
  
  .event-main-content,
  .event-sidebar {
    padding: 1.5rem;
  }
  
  .event-detail-image {
    height: 250px;
  }
  
  .event-actions {
    flex-direction: column;
  }
  
  .btn-event-primary,
  .btn-event-secondary {
    width: 100%;
    justify-content: center;
  }
  
  .modal-backdrop {
    padding: 0.5rem;
  }
  
  .modal-header,
  .modal-body {
    padding: 1.5rem;
  }
  
  .event-modal-details {
    flex-direction: column;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .event-detail-title {
    font-size: 1.875rem;
  }
  
  .event-main-content,
  .event-sidebar {
    padding: 1rem;
  }
  
  .event-detail-image {
    height: 200px;
  }
  
  .event-featured-image {
    margin-bottom: 1.5rem;
  }
  
  .share-links {
    justify-content: center;
  }
}

/* Print Styles */
@media print {
  .event-detail-hero {
    background: none !important;
    color: var(--secondary-color) !important;
    padding: 1rem 0;
  }
  
  .event-actions,
  .event-share,
  .back-to-events,
  .modal-backdrop {
    display: none !important;
  }
  
  .event-detail-grid {
    grid-template-columns: 1fr;
  }
  
  .event-main-content,
  .event-sidebar {
    box-shadow: none;
    border: 1px solid var(--neutral-300);
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .event-detail-hero {
    background: var(--secondary-color);
  }
  
  .btn-event-primary {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
  }
  
  .btn-event-primary:hover {
    background: var(--neutral-900);
    border-color: var(--neutral-900);
  }
}

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

/* Focus Styles for Accessibility */
.btn-event-primary:focus,
.btn-event-secondary:focus,
.modal-close:focus,
.modal-register-btn:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.modal-form-group input:focus,
.modal-form-group textarea:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: -2px;
}

/* Additional Professional Enhancements */
.event-info-content .event-info-label {
  font-weight: 600;
  color: var(--secondary-color);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.25rem;
}

.event-info-content .event-info-value {
  color: var(--neutral-600);
  font-size: 1rem;
  line-height: 1.4;
}

/* Professional gradient backgrounds for status indicators */
.event-registration-status {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.event-registration-status.open {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
}

.event-registration-status.full {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: white;
}

.event-registration-status.closed {
  background: linear-gradient(135deg, #6b7280, #4b5563);
  color: white;
}

/* Enhanced hover effects for interactive elements */
.event-info-list li:hover {
  background: rgba(0, 102, 204, 0.02);
  border-radius: var(--radius-md);
  transform: translateX(5px);
  transition: var(--transition);
}

.share-links a:hover {
  transform: translateY(-3px) scale(1.05);
}

/* Professional typography improvements */
.event-description h3,
.event-description h4 {
  color: var(--secondary-color);
  font-weight: 700;
  margin: 2rem 0 1rem 0;
}

.event-description ul,
.event-description ol {
  padding-left: 1.5rem;
  margin: 1rem 0;
}

.event-description li {
  margin: 0.5rem 0;
  line-height: 1.6;
}

/* Professional loading states */
.btn-event-primary.loading::after {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: 0.5rem;
}

/* Enhanced modal animations */
@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(30px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-backdrop.active .registration-modal {
  animation: modalFadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Tablet Header Navigation Fix - Universal (768px-1024px) */
@media (min-width: 768px) and (max-width: 1024px) {
  .navbar-nav {
    display: flex !important;
    flex-direction: row !important;
    position: static !important;
    background: transparent !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 !important;
    width: auto !important;
    height: auto !important;
    transform: none !important;
  }

  .navbar-nav .nav-item {
    margin: 0 !important;
    position: relative !important;
  }

  .navbar-nav .nav-link {
    padding: var(--space-sm) var(--space-md) !important;
    color: var(--neutral-100) !important;
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
    margin: 0 !important;
    text-align: left !important;
    font-size: 0.95rem !important;
    font-weight: 500 !important;
    transition: all 0.3s ease !important;
  }

  .navbar-nav .nav-link:hover {
    background: rgba(255, 255, 255, 0.1) !important;
    color: var(--neutral-100) !important;
  }

  .dropdown-menu {
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    background: var(--secondary-color) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: 6px !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2) !important;
    min-width: 200px !important;
    z-index: 1000 !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(-10px) !important;
    transition: all 0.3s ease !important;
  }

  .nav-item.dropdown:hover .dropdown-menu {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
  }

  .dropdown-item {
    padding: var(--space-sm) var(--space-md) !important;
    color: var(--neutral-100) !important;
    background: transparent !important;
    border: none !important;
    font-size: 0.9rem !important;
    transition: background-color 0.3s ease !important;
  }

  .dropdown-item:hover {
    background: rgba(255, 255, 255, 0.1) !important;
    color: var(--neutral-100) !important;
  }

  .mobile-menu-toggle {
    display: none !important;
  }

  .navbar-brand img {
    height: 45px !important;
  }

  .navbar {
    padding: var(--space-sm) 0 !important;
  }

  .navbar .container {
    padding: 0 var(--space-lg) !important;
  }
}

/* iPad Mini Specific (768px-820px) */
@media (min-width: 768px) and (max-width: 820px) {
  .navbar-nav .nav-link {
    padding: var(--space-xs) var(--space-sm) !important;
    font-size: 0.9rem !important;
  }

  .navbar .container {
    padding: 0 var(--space-md) !important;
  }

  .dropdown-menu {
    min-width: 180px !important;
  }
}

/* iPad Air and larger tablets (821px-1024px) */
@media (min-width: 821px) and (max-width: 1024px) {
  .navbar-nav .nav-link {
    padding: var(--space-sm) var(--space-md) !important;
    font-size: 0.95rem !important;
  }

  .dropdown-menu {
    min-width: 220px !important;
  }
}