.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.btn-secondary {
  background-color: var(--color-bg-secondary);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-text);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  position: relative;
}

.btn-icon:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-text);
}

.search-box {
  position: relative;
  width: 320px;
}

.search-box input {
  width: 100%;
  padding: 10px 16px 10px 44px;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.search-box input::placeholder {
  color: var(--color-text-muted);
}

.search-box input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.search-box .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  background-color: transparent;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  font-size: 1.2rem;
}

.theme-toggle:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-text);
}

.card {
  background-color: var(--color-bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
  break-inside: avoid;
  margin-bottom: 12px;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--color-shadow-hover);
  border-color: var(--color-primary);
}

.card-image-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 4;
  cursor: pointer;
  background-color: var(--color-bg-secondary);
}

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

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

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, transparent 55%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  display: flex;
  align-items: flex-end;
  padding: 8px;
}

.card:hover .card-overlay {
  opacity: 1;
}

.card-actions {
  display: flex;
  gap: 4px;
  width: 100%;
  justify-content: flex-end;
}

.card-action-btn {
  padding: 4px 8px;
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 2px;
}

.card-action-btn:hover {
  background-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
}

.card-info {
  padding: 8px 10px;
}

.card-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

.card-stats {
  display: flex;
  align-items: center;
  gap: 6px;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 2px;
}

.category-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  background-color: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.category-chip:hover,
.category-chip.active {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  background-color: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  margin-right: 6px;
  margin-bottom: 6px;
  transition: all var(--transition-fast);
}

.tag:hover {
  background-color: var(--color-primary);
  color: #fff;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: var(--color-overlay);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.active {
  display: flex;
  opacity: 1;
}

.modal-content {
  background-color: var(--color-bg-card);
  border-radius: var(--radius-xl);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(20px);
  transition: transform var(--transition-normal);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

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

.modal-body {
  padding: 24px;
}

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 24px var(--color-shadow-hover);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  animation: slideInRight 0.3s ease forwards;
  min-width: 280px;
}

.toast.success {
  border-left: 4px solid #10b981;
}

.toast.error {
  border-left: 4px solid #ef4444;
}

.toast.info {
  border-left: 4px solid var(--color-primary);
}

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

.loading-skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-secondary) 25%,
    var(--color-border) 50%,
    var(--color-bg-secondary) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

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