/* ============================================
   COMPONENTS - Buttons, Cards, Forms, Modals
   ============================================ */

/* -------------------- Buttons -------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Primary Button */
.btn-primary {
  background-color: var(--color-terracotta);
  color: var(--color-warm-white);
  border: 2px solid var(--color-terracotta);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-burnt-sienna);
  border-color: var(--color-burnt-sienna);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
  background-color: var(--color-warm-white);
  color: var(--color-charcoal);
  border: 2px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--color-terracotta);
  color: var(--color-terracotta);
}

/* Outline Button */
.btn-outline {
  background-color: transparent;
  color: var(--color-terracotta);
  border: 2px solid var(--color-terracotta);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-terracotta);
  color: var(--color-warm-white);
}

/* Ghost Button */
.btn-ghost {
  background-color: transparent;
  color: var(--color-warm-gray);
  border: 2px solid transparent;
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-parchment);
  color: var(--color-charcoal);
}

/* Gold Button */
.btn-gold {
  background-color: var(--color-gold);
  color: var(--color-charcoal);
  border: 2px solid var(--color-gold);
}

.btn-gold:hover:not(:disabled) {
  background-color: var(--color-ochre);
  border-color: var(--color-ochre);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

/* Icon Button */
.btn-icon {
  padding: var(--space-3);
  border-radius: var(--radius-full);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

/* -------------------- Cards -------------------- */

.card {
  background-color: var(--color-warm-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
}

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

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

.card-bordered {
  border: 1px solid var(--color-border);
}

.card-body {
  padding: var(--space-6);
}

.card-image {
  position: relative;
  overflow: hidden;
}

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

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

/* -------------------- Artwork Card -------------------- */

.artwork-card {
  position: relative;
  background-color: var(--color-warm-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-frame);
  transition: all var(--transition-normal) var(--ease-out-expo);
}

.artwork-card:hover {
  box-shadow: var(--shadow-frame-hover);
  transform: translateY(-8px);
}

.artwork-card__frame {
  padding: var(--space-3);
  background: linear-gradient(135deg, #f5f0e8 0%, #e8e0d5 100%);
  border: 1px solid var(--color-border-light);
}

.artwork-card__image {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background-color: var(--color-parchment);
}

.artwork-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow) var(--ease-out-expo);
}

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

.artwork-card__overlay {
  position: absolute;
  inset: 0;
  background: var(--color-overlay-light);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.artwork-card:hover .artwork-card__overlay {
  opacity: 1;
}

.artwork-card__content {
  padding: var(--space-4);
}

.artwork-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-charcoal);
  margin-bottom: var(--space-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.artwork-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-sm);
  color: var(--color-warm-gray);
}

.artwork-card__date {
  color: var(--color-muted);
}

.artwork-card__price {
  font-weight: var(--font-semibold);
  color: var(--color-terracotta);
}

.artwork-card__colors {
  display: flex;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.color-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
}

/* -------------------- Form Elements -------------------- */

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-charcoal);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-warm-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-charcoal);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-terracotta);
  box-shadow: 0 0 0 3px rgba(196, 120, 90, 0.15);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-muted);
}

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

.form-hint {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin-top: var(--space-1);
}

.form-error {
  color: var(--color-error);
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
}

.form-check input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-terracotta);
}

/* -------------------- Style Selector (Radio Cards) -------------------- */

.style-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-4);
}

.style-option {
  cursor: pointer;
}

.style-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.style-option__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-4);
  background-color: var(--color-warm-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.style-option input:checked + .style-option__card {
  border-color: var(--color-terracotta);
  background-color: rgba(196, 120, 90, 0.05);
}

.style-option:hover .style-option__card {
  border-color: var(--color-terracotta-light);
}

.style-option__card img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  object-fit: cover;
  margin-bottom: var(--space-3);
}

.style-option__card span {
  font-weight: var(--font-medium);
  color: var(--color-charcoal);
}

/* -------------------- Color Palette Selector -------------------- */

.palette-selector {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.palette-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background: transparent;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.palette-option:hover {
  background-color: var(--color-parchment);
}

.palette-option.active {
  border-color: var(--color-terracotta);
  background-color: rgba(196, 120, 90, 0.05);
}

.palette-preview {
  display: flex;
  gap: 2px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.palette-preview span {
  width: 20px;
  height: 28px;
}

.palette-name {
  font-size: var(--text-xs);
  color: var(--color-warm-gray);
}

/* -------------------- Badges -------------------- */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
}

.badge-primary {
  background-color: var(--color-terracotta);
  color: var(--color-warm-white);
}

.badge-secondary {
  background-color: var(--color-parchment);
  color: var(--color-warm-gray);
}

.badge-gold {
  background-color: var(--color-gold);
  color: var(--color-charcoal);
}

/* -------------------- Loading States -------------------- */

/* Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-terracotta);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.spinner-lg {
  width: 60px;
  height: 60px;
  border-width: 4px;
}

/* Skeleton Loader */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-parchment) 25%,
    var(--color-border-light) 50%,
    var(--color-parchment) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

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

.skeleton-text {
  height: 1em;
  margin-bottom: var(--space-2);
}

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

.skeleton-image {
  aspect-ratio: 1;
}

/* Progress Bar */
.progress {
  position: relative;
  height: 8px;
  background-color: var(--color-parchment);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress__bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-terracotta), var(--color-gold));
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
}

.progress__text {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--text-sm);
  color: var(--color-warm-gray);
}

/* -------------------- Modal / Lightbox -------------------- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: var(--color-overlay);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  background-color: var(--color-warm-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  z-index: var(--z-modal);
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal) var(--ease-out-expo);
}

.modal.active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-warm-white);
  border-radius: var(--radius-full);
  font-size: var(--text-2xl);
  color: var(--color-warm-gray);
  transition: all var(--transition-fast);
  z-index: 10;
}

.modal-close:hover {
  background-color: var(--color-parchment);
  color: var(--color-charcoal);
}

/* -------------------- Lightbox -------------------- */

.lightbox {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.95);
  z-index: var(--z-modal);
  display: flex;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox__close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--text-3xl);
  opacity: 0.7;
  transition: opacity var(--transition-fast);
  z-index: 10;
}

.lightbox__close:hover {
  opacity: 1;
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--text-2xl);
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.lightbox__nav:hover {
  opacity: 1;
}

.lightbox__prev {
  left: var(--space-6);
}

.lightbox__next {
  right: var(--space-6);
}

.lightbox__image {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-16);
}

.lightbox__image img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
}

.lightbox__info {
  width: 350px;
  background-color: var(--color-warm-white);
  padding: var(--space-8);
  overflow-y: auto;
}

@media (max-width: 1024px) {
  .lightbox {
    flex-direction: column;
  }

  .lightbox__info {
    width: 100%;
    max-height: 40vh;
  }

  .lightbox__image {
    padding: var(--space-8);
  }
}

/* -------------------- Tags / Chips -------------------- */

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-parchment);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-warm-gray);
  transition: all var(--transition-fast);
}

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

.tag-removable {
  cursor: pointer;
}

.tag__remove {
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: var(--space-1);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
}

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

/* -------------------- Divider -------------------- */

.divider {
  height: 1px;
  background-color: var(--color-border);
  margin: var(--space-8) 0;
}

.divider-vertical {
  width: 1px;
  height: auto;
  align-self: stretch;
  margin: 0 var(--space-4);
}

/* -------------------- Avatar -------------------- */

.avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  overflow: hidden;
  background-color: var(--color-parchment);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-sm { width: 32px; height: 32px; }
.avatar-lg { width: 56px; height: 56px; }
.avatar-xl { width: 80px; height: 80px; }