/* Prompt List - Card Gallery Design */
.prompt-list {
  background-color: var(--color-bg);
  border-right: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.prompt-list__header {
  padding: var(--spacing-xl) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
  flex-shrink: 0;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
}

.prompt-list__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: var(--font-bold);
  margin-bottom: var(--spacing-xxs);
  color: var(--color-text);
  letter-spacing: -0.03em;
}

.prompt-list__count {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
  font-weight: var(--font-normal);
}

.prompt-list__items {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-lg);
}

/* Prompt Card - Premium Floating Design */
.prompt-card {
  padding: var(--spacing-lg);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  margin-bottom: var(--spacing-md);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xs);
}

/* Gradient Accent Overlay */
.prompt-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-accent) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.prompt-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, var(--color-primary-subtle), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.prompt-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px) scale(1.01);
}

.prompt-card:hover::before {
  opacity: 1;
}

.prompt-card:hover::after {
  opacity: 1;
}

.prompt-card--active {
  border-color: var(--color-primary);
  background: var(--color-primary-subtle);
  box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-md);
  transform: scale(1.01);
}

.prompt-card--active::before {
  opacity: 1;
}

.prompt-card--active::after {
  opacity: 1;
}

.prompt-card__header {
  display: flex;
  align-items: start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.prompt-card__title {
  flex: 1;
  font-family: var(--font-display);
  font-weight: var(--font-semibold);
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.4;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  letter-spacing: -0.02em;
}

/* Favorite Button - Elegant Icon */
.prompt-card__favorite {
  color: var(--color-text-tertiary);
  transition: all var(--transition-spring);
  flex-shrink: 0;
  font-size: 1rem;
  padding: 0.375rem;
  border-radius: var(--radius-md);
  opacity: 0;
  background-color: var(--color-bg-secondary);
}

.prompt-card:hover .prompt-card__favorite {
  opacity: 1;
}

.prompt-card__favorite:hover {
  background-color: var(--color-warning);
  color: white;
  transform: scale(1.15) rotate(10deg);
  box-shadow: var(--shadow-md);
}

.prompt-card__favorite--active {
  color: var(--color-warning);
  opacity: 1;
  animation: favoritePopIn 0.4s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

@keyframes favoritePopIn {
  0% { transform: scale(0.5) rotate(0deg); }
  50% { transform: scale(1.2) rotate(10deg); }
  100% { transform: scale(1) rotate(0deg); }
}

.prompt-card__content {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  position: relative;
  z-index: 1;
}

.prompt-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  margin-top: auto;
  position: relative;
  z-index: 1;
}

.prompt-card__tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  flex: 1;
  overflow: hidden;
}

/* Tag Pills - Modern Chip Design */
.prompt-card__tag {
  font-size: 0.75rem;
  font-weight: var(--font-medium);
  padding: 0.25rem 0.625rem;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  color: var(--color-text-secondary);
  white-space: nowrap;
  letter-spacing: -0.01em;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-xs);
}

.prompt-card:hover .prompt-card__tag {
  background: var(--color-bg-elevated);
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
}

.prompt-card--active .prompt-card__tag {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.prompt-card__date {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  font-weight: var(--font-normal);
  font-feature-settings: 'tnum' 1;
}

/* Loading State */
.prompt-list__loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4xl);
  flex-direction: column;
  gap: var(--spacing-lg);
}

.prompt-list__loading .spinner {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

/* Empty State */
.prompt-list .empty-state {
  padding: var(--spacing-4xl) var(--spacing-xl);
}

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

.prompt-card {
  animation: cardFadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

.prompt-card:nth-child(1) { animation-delay: 0ms; }
.prompt-card:nth-child(2) { animation-delay: 50ms; }
.prompt-card:nth-child(3) { animation-delay: 100ms; }
.prompt-card:nth-child(4) { animation-delay: 150ms; }
.prompt-card:nth-child(5) { animation-delay: 200ms; }
.prompt-card:nth-child(n+6) { animation-delay: 250ms; }