/**
 * Index Page Styles
 * Cooking School Booking - Main Page
 */

/* ============================================
   LAYOUT
   ============================================ */

body {
  background: var(--color-bg-primary);
  min-height: 100vh;
  padding: var(--space-4);
  position: relative;
  overflow-x: hidden;
}

.page-container {
  position: relative;
  z-index: 1;
  max-width: var(--content-max-width);
  margin: 0 auto;
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
  text-align: center;
  color: var(--color-text-inverse);
  margin-bottom: var(--space-8);
  padding: var(--space-6) var(--space-4);
  position: relative;
  animation: fadeInDown 0.8s var(--ease-out);
}

.site-title {
  font-family: var(--font-display);
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-3);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
  letter-spacing: var(--letter-spacing-tight);
  line-height: var(--line-height-tight);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.site-title .icon-chef-hat {
  display: inline-block;
  filter: drop-shadow(0 2px 10px rgba(255, 255, 255, 0.3));
  animation: float 3s ease-in-out infinite;
}

.site-subtitle {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-regular);
  opacity: 0.95;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.1);
  letter-spacing: var(--letter-spacing-wide);
}

/* ============================================
   LANGUAGE SWITCHER
   ============================================ */

.lang-switcher {
  display: flex;
  gap: var(--space-2);
}

.lang-btn {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(var(--blur-base));
  color: var(--color-primary-600);
  border: 2px solid rgba(226, 125, 96, 0.3);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(226, 125, 96, 0.5);
  transform: translateY(-2px);
  box-shadow: var(--shadow-base);
}

.lang-btn.active {
  background: var(--color-primary-600);
  color: var(--color-text-inverse);
  border-color: var(--color-primary-600);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-md);
}

/* ============================================
   THEME TOGGLE
   ============================================ */

.header-controls {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  z-index: var(--z-index-sticky);
}

/* ============================================
   CLASSES GRID
   ============================================ */

.classes-container {
  margin-bottom: var(--space-12);
}

.classes-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-6);
}

/* Class Card */
.class-card {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-2xl);
  padding: 0;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  opacity: 0;
  animation: fadeInUp 0.6s var(--ease-out) forwards;
}

/* Hero Image */
.class-card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.class-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow) var(--ease-out);
}

.class-card:hover .class-card-image img {
  transform: scale(1.05);
}

/* Content wrapper */
.class-card-content {
  padding: var(--space-6);
}

.class-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Stagger animation for cards */
.class-card:nth-child(1) { animation-delay: 0.1s; }
.class-card:nth-child(2) { animation-delay: 0.2s; }
.class-card:nth-child(3) { animation-delay: 0.3s; }
.class-card:nth-child(4) { animation-delay: 0.4s; }
.class-card:nth-child(5) { animation-delay: 0.5s; }
.class-card:nth-child(6) { animation-delay: 0.6s; }

.class-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-4);
  gap: var(--space-4);
}

.class-card-title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-2) 0;
  line-height: var(--line-height-tight);
}

.class-card-price {
  background: var(--gradient-primary);
  color: var(--color-text-inverse);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.class-card-info {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.class-info-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.class-info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-600);
}

.class-info-icon svg {
  display: block;
}

.class-card-description {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-5);
  font-size: var(--font-size-base);
}

/* Capacity Bar */
.capacity-container {
  margin-bottom: var(--space-5);
}

.capacity-label {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.capacity-bar {
  width: 100%;
  height: 8px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.capacity-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow) var(--ease-out);
  position: relative;
}

.capacity-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2s infinite;
}

/* Card Actions */
.class-card-actions {
  display: flex;
  gap: var(--space-3);
}

.btn-book {
  flex: 1;
  background: var(--gradient-primary);
  color: var(--color-text-inverse);
  border: none;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-base);
  position: relative;
  overflow: hidden;
}

.btn-book::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-book:hover::before {
  width: 300px;
  height: 300px;
}

.btn-book:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-book:active {
  transform: translateY(0);
}

.btn-book:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.btn-book span {
  position: relative;
  z-index: 1;
}

.btn-book svg {
  position: relative;
  z-index: 1;
  margin-right: var(--space-2);
  display: inline-block;
  vertical-align: middle;
}

/* ============================================
   LOADING STATE
   ============================================ */

.loading-message {
  text-align: center;
  padding: var(--space-12);
  color: var(--color-text-inverse);
  font-size: var(--font-size-lg);
}

.loading-spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-text-inverse);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: var(--space-4);
}

.loading-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-error);
}

.loading-error svg {
  width: 40px;
  height: 40px;
}

/* Success Message */
.success-message {
  text-align: center;
  padding: var(--space-6);
  animation: bounceIn 0.6s var(--ease-bounce);
}

.success-icon {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-4);
  animation: pulse 0.5s ease-out;
}

.success-message h3 {
  color: var(--color-success);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
}

.success-message p {
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}

/* ============================================
   MY BOOKINGS BUTTON
   ============================================ */

.my-bookings-btn {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(var(--blur-lg));
  color: var(--color-primary-700);
  border: 2px solid rgba(139, 92, 246, 0.3);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  z-index: var(--z-index-sticky);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.my-bookings-btn:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: var(--shadow-xl);
  background: var(--color-primary-600);
  color: var(--color-text-inverse);
  border-color: var(--color-primary-600);
}

.my-bookings-btn:active {
  transform: translateY(-2px) scale(1.02);
}

/* ============================================
   BOOKING MODAL CUSTOM STYLES
   ============================================ */

.booking-summary {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-6);
  border-left: 4px solid var(--color-primary-600);
}

.booking-summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-light);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.booking-summary-item:last-child {
  border-bottom: none;
}

.booking-summary-item strong {
  color: var(--color-text-primary);
}

.booking-summary-total {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-700);
  padding-top: var(--space-4);
  margin-top: var(--space-2);
  border-top: 2px solid var(--color-primary-200);
}

.payment-type-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.payment-toggle-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.payment-toggle-labels {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  flex: 1;
}

.payment-toggle-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.payment-toggle-description {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  line-height: 1.3;
}

/* Toggle Switch Styles */
.payment-toggle-switch {
  position: relative;
  display: inline-block;
  width: 52px;
  height: 28px;
  flex-shrink: 0;
}

.payment-toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.payment-toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg-tertiary);
  transition: all var(--transition-base);
  border-radius: 28px;
  border: 2px solid var(--color-border-medium);
}

.payment-toggle-slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 2px;
  bottom: 2px;
  background-color: white;
  transition: all var(--transition-base);
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.payment-toggle-switch input:checked + .payment-toggle-slider {
  background: var(--gradient-primary);
  border-color: var(--color-primary-600);
}

.payment-toggle-switch input:checked + .payment-toggle-slider:before {
  transform: translateX(24px);
}

.payment-toggle-switch:hover .payment-toggle-slider {
  border-color: var(--color-primary-500);
}

/* Active state labels */
.payment-toggle-container[data-active="full"] .payment-toggle-labels[data-type="full"] .payment-toggle-title,
.payment-toggle-container[data-active="partial"] .payment-toggle-labels[data-type="partial"] .payment-toggle-title {
  color: var(--color-primary-600);
  font-weight: var(--font-weight-semibold);
}

/* ============================================
   SKELETON LOADING
   ============================================ */

.skeleton-class-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(var(--blur-lg));
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.5);
  opacity: 0;
  animation: fadeInUp 0.6s var(--ease-out) forwards;
}

.skeleton-class-card:nth-child(1) { animation-delay: 0.1s; }
.skeleton-class-card:nth-child(2) { animation-delay: 0.2s; }
.skeleton-class-card:nth-child(3) { animation-delay: 0.3s; }
.skeleton-class-card:nth-child(4) { animation-delay: 0.4s; }
.skeleton-class-card:nth-child(5) { animation-delay: 0.5s; }
.skeleton-class-card:nth-child(6) { animation-delay: 0.6s; }

.skeleton-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-4);
  gap: var(--space-4);
}

.skeleton-title {
  height: 28px;
  width: 70%;
  background: linear-gradient(
    90deg,
    var(--color-bg-secondary) 0%,
    var(--color-bg-tertiary) 50%,
    var(--color-bg-secondary) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-base);
}

.skeleton-price {
  height: 40px;
  width: 80px;
  background: linear-gradient(
    90deg,
    var(--color-bg-secondary) 0%,
    var(--color-bg-tertiary) 50%,
    var(--color-bg-secondary) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-full);
}

.skeleton-info {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.skeleton-info-item {
  height: 20px;
  width: 120px;
  background: linear-gradient(
    90deg,
    var(--color-bg-secondary) 0%,
    var(--color-bg-tertiary) 50%,
    var(--color-bg-secondary) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-base);
}

.skeleton-description {
  height: 60px;
  width: 100%;
  margin-bottom: var(--space-5);
  background: linear-gradient(
    90deg,
    var(--color-bg-secondary) 0%,
    var(--color-bg-tertiary) 50%,
    var(--color-bg-secondary) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-base);
}

.skeleton-capacity {
  height: 40px;
  width: 100%;
  margin-bottom: var(--space-5);
  background: linear-gradient(
    90deg,
    var(--color-bg-secondary) 0%,
    var(--color-bg-tertiary) 50%,
    var(--color-bg-secondary) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-base);
}

.skeleton-button {
  height: 48px;
  width: 100%;
  background: linear-gradient(
    90deg,
    var(--color-bg-secondary) 0%,
    var(--color-bg-tertiary) 50%,
    var(--color-bg-secondary) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-lg);
}

/* ============================================
   MODAL OVERRIDES FOR INDEX PAGE
   ============================================ */

.modal-backdrop[style*="display: flex"] {
  display: flex !important;
  align-items: center;
  justify-content: center;
}

.modal-backdrop[style*="display: none"] {
  display: none !important;
}

.modal-backdrop .modal {
  opacity: 1 !important;
  transform: scale(1) !important;
  animation: scaleIn 0.3s var(--ease-out) !important;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (min-width: 768px) {
  body {
    padding: var(--space-6);
  }

  .site-title {
    font-size: calc(var(--font-size-4xl) * 1.2);
  }

  .classes-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }

  .lang-switcher {
    top: var(--space-6);
    right: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .site-header {
    padding: var(--space-10) var(--space-6);
  }

  .classes-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .class-card-title {
    font-size: var(--font-size-2xl);
  }
}

@media (max-width: 767px) {
  .my-bookings-btn {
    bottom: var(--space-4);
    right: var(--space-4);
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-sm);
  }

  .class-card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .class-card-price {
    align-self: flex-start;
  }
}