/* ========================================
   COMPONENTS - Reusable UI Components
   ======================================== */

/* Buttons */
.btn {
  padding: 12px 24px;
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  line-height: 1;
}

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

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

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--text-inverse);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
}

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

.btn-secondary:hover:not(:disabled) {
  background: var(--text-muted);
}

.btn-danger {
  background: var(--color-danger);
  color: var(--text-inverse);
}

.btn-danger:hover:not(:disabled) {
  background: #c82333;
}

.btn-icon {
  padding: var(--spacing-sm);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-body {
  padding: var(--spacing-lg);
}

/* Chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 6px 12px;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
  user-select: none;
}

.chip:hover {
  transform: scale(1.05);
}

.chip.active {
  background: var(--color-primary);
  color: var(--text-inverse);
  border-color: var(--color-primary);
}

.chip-genre {
  background: #e3f2fd;
  color: #1976d2;
}

.chip-genre.active {
  background: #1976d2;
  color: white;
}

[data-theme="dark"] .chip-genre {
  background: rgba(25, 118, 210, 0.2);
  color: #5c9ce6;
}

[data-theme="dark"] .chip-genre.active {
  background: #1976d2;
  color: white;
}

.chip-removable::after {
  content: '×';
  margin-left: 4px;
  font-weight: bold;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  line-height: 1;
}

.badge-primary {
  background: var(--color-primary);
  color: var(--text-inverse);
}

.badge-danger {
  background: var(--color-danger);
  color: var(--text-inverse);
}

/* Skeleton Loading */
.skeleton {
  background: var(--border-color-light);
  border-radius: var(--border-radius-sm);
  position: relative;
  overflow: hidden;
}

.skeleton::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 1.5s infinite;
}

[data-theme="dark"] .skeleton::after {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 2/3;
}

.skeleton-text {
  height: 1em;
  margin-bottom: 0.5em;
}

.skeleton-text:last-child {
  width: 60%;
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  width: 50px;
  height: 26px;
  cursor: pointer;
}

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

.toggle-slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--border-color);
  border-radius: var(--border-radius-full);
  transition: var(--transition-base);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: var(--transition-base);
}

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

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

/* Star Rating */
.star-rating {
  display: inline-flex;
  gap: 2px;
}

.star-rating .star {
  color: var(--border-color);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.star-rating .star.filled {
  color: var(--color-accent);
}

.star-rating .star:hover {
  color: var(--color-accent);
}

/* Search Autocomplete */
.autocomplete-wrapper {
  position: relative;
}

.autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
  max-height: 300px;
  overflow-y: auto;
  display: none;
}

.autocomplete-dropdown.active {
  display: block;
}

.autocomplete-item {
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  border-bottom: 1px solid var(--border-color-light);
}

.autocomplete-item:hover {
  background: var(--color-primary-light);
}

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

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  z-index: var(--z-notification);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  pointer-events: none;
}

.toast {
  background: var(--bg-card);
  color: var(--text-primary);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  min-width: 300px;
  max-width: 400px;
  pointer-events: auto;
  animation: slideInRight 0.3s ease;
  border-left: 4px solid var(--color-info);
}

.toast.success { border-left-color: var(--color-success); }
.toast.error { border-left-color: var(--color-danger); }
.toast.warning { border-left-color: var(--color-warning); }
.toast.info { border-left-color: var(--color-info); }

.toast-icon {
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.toast.success .toast-icon { color: var(--color-success); }
.toast.error .toast-icon { color: var(--color-danger); }
.toast.warning .toast-icon { color: var(--color-warning); }
.toast.info .toast-icon { color: var(--color-info); }

.toast-content {
  flex: 1;
}

.toast-message {
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  font-size: var(--font-size-lg);
  line-height: 1;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.toast-close:hover {
  opacity: 1;
}

.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--color-primary);
  animation: progressShrink linear forwards;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideOutRight {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

@keyframes progressShrink {
  from { width: 100%; }
  to { width: 0%; }
}

/* Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-overlay);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.modal-content {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-xl);
  max-width: 90%;
  max-height: 90%;
  transform: scale(0.9);
  transition: transform var(--transition-base);
  position: relative;
}

.modal-backdrop.active .modal-content {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--text-muted);
  cursor: pointer;
  z-index: 1;
}

.modal-close:hover {
  color: var(--text-primary);
}

/* Filter Tags */
.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.filter-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 4px 10px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.filter-tag-remove {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: 0;
  font-size: var(--font-size-base);
  line-height: 1;
  opacity: 0.7;
}

.filter-tag-remove:hover {
  opacity: 1;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--font-size-xl);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.empty-state-text {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-lg);
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .nav {
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
  }

  .toast-container {
    left: var(--spacing-md);
    right: var(--spacing-md);
  }

  .toast {
    min-width: auto;
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .btn {
    padding: 10px 16px;
    font-size: var(--font-size-sm);
  }
}