/* ====================================
   PromptGallery — Component Styles
   ==================================== */

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.65rem 1.5rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  min-height: 48px; /* Better tap target for mobile */
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 4px 14px rgba(var(--color-primary-rgb), 0.35);
}

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

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

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

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

.btn-accent:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-accent);
}

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

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

.btn-lg {
  padding: 0.85rem 2rem;
  font-size: var(--font-size-base);
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 0.4rem 1rem;
  font-size: var(--font-size-xs);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ── Badges & Tags ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.7rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  background: rgba(var(--color-primary-rgb), 0.15);
  color: var(--color-primary-light);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.social-links a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-medium);
  min-height: 44px;
}

/* ── Cards ── */
.card {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition-base);
}

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

/* Photo Card */
.photo-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  break-inside: avoid;
  margin-bottom: var(--space-md);
}

.photo-card img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

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

.photo-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-lg);
  background: var(--gradient-dark);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.photo-card-info {
  color: white;
}

.photo-card-info .author {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.photo-card-actions {
  display: flex;
  gap: var(--space-sm);
}

.photo-card-actions .btn-icon {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  backdrop-filter: blur(8px);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

.photo-card-actions .btn-icon:hover {
  background: var(--color-primary);
}

/* ── Search Input ── */
.search-input-wrapper {
  position: relative;
  width: 100%;
  max-width: 680px;
}

.search-input {
  width: 100%;
  padding: 1rem 1.5rem 1rem 3.2rem;
  font-size: var(--font-size-md);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  color: var(--color-text);
  transition: all var(--transition-base);
}

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

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(var(--color-primary-rgb), 0.15);
  background: var(--color-bg-tertiary);
}

.search-input-icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

/* ── Skeleton Loader ── */
.skeleton {
  background: linear-gradient(90deg, var(--color-bg-tertiary) 25%, var(--color-surface) 50%, var(--color-bg-tertiary) 75%);
  background-size: 400% 100%;
  animation: shimmer 1.5s ease infinite;
  border-radius: var(--radius-sm);
}

.skeleton-card {
  width: 100%;
  height: 250px;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  break-inside: avoid;
}

.skeleton-text {
  height: 1rem;
  width: 80%;
  margin-bottom: var(--space-sm);
}

.skeleton-text.short {
  width: 50%;
}

/* ── Toast ── */
.toast-container {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.toast.success {
  border-left: 3px solid var(--color-success);
}

.toast.error {
  border-left: 3px solid var(--color-error);
}

/* ── Modal ── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}

.modal {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  max-width: 500px;
  width: 90%;
  box-shadow: var(--shadow-xl);
  animation: fadeInScale 0.3s ease;
}

.modal-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
}

/* ── Form Inputs ── */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* ── Stats Card ── */
.stat-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}

.stat-card-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.stat-card-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* ── Category Card ── */
.category-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 16/10;
}

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

.category-card:hover img {
  transform: scale(1.08);
}

.category-card-label {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-xs);
  transition: background var(--transition-base);
}

.category-card:hover .category-card-label {
  background: rgba(var(--color-primary-rgb), 0.55);
}

.category-card-label h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: white;
}

.category-card-label span {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: var(--space-lg);
  opacity: 0.4;
}

.empty-state h3 {
  margin-bottom: var(--space-sm);
}

.empty-state p {
  color: var(--color-text-muted);
  max-width: 400px;
  margin: 0 auto;
}

/* ── Watermark Overlay ── */
.watermark-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.15;
  overflow: hidden;
}

.watermark-text {
  font-size: 2.5rem;
  font-weight: 900;
  color: white;
  letter-spacing: 0.5rem;
  text-transform: uppercase;
  transform: rotate(-30deg);
  white-space: nowrap;
  user-select: none;
}