/* ============================================================
   PRODUCT-DETAIL.CSS
   ============================================================ */

.product-detail-page {
  padding: var(--space-8) 0 var(--space-20);
}

.product-detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}

/* ── Gallery ── */
.gallery-panel {
  position: sticky;
  top: calc(var(--header-height) + var(--space-4));
}

.gallery-main {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-bg-alt);
  margin-bottom: var(--space-3);
  border: 1px solid var(--color-border);
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-base);
}

.gallery-main img.is-loading {
  opacity: 0;
}

.gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 5;
  transition:
    background var(--transition-fast),
    box-shadow var(--transition-fast);
}
.gallery-arrow:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}
.gallery-arrow svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-text);
  stroke-width: 2;
  fill: none;
}
.gallery-arrow.prev {
  left: var(--space-3);
}
.gallery-arrow.next {
  right: var(--space-3);
}

.gallery-thumbs {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-bottom: 2px;
}

.gallery-thumb {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    opacity var(--transition-fast);
  background: var(--color-bg-alt);
}
.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery-thumb:hover {
  border-color: var(--color-secondary);
}
.gallery-thumb.is-active {
  border-color: var(--color-primary);
}

/* ── Config Panel ── */
.config-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.product-title-area h1 {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
  line-height: 1.25;
}
.product-subtitle {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.6;
}

.product-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.product-rating {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.rating-stars {
  display: flex;
  gap: 1px;
  color: #f5a623;
}
.rating-stars svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}
.rating-count {
  font-size: var(--text-sm);
  color: var(--color-primary);
  text-decoration: underline;
  cursor: pointer;
}

.product-price-display {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
}
.product-price-display .price-unit {
  font-size: var(--text-sm);
  font-weight: var(--font-normal);
  color: var(--color-muted);
  margin-left: var(--space-1);
}

/* ── Selector Group ── */
.selector-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.selector-group-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

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

.selector-card {
  flex: 0;
  min-width: 120px;
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  background: var(--color-white);
  text-align: center;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}
.selector-card:hover {
  border-color: var(--color-border-dark);
  background: var(--color-primary-light);
}
.selector-card.is-active {
  border-color: var(--color-selected-border);
  background: var(--color-selected-bg);
}

.selector-card-thumb {
  width: 100%;
  height: 64px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg-alt);
}
.selector-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.selector-card-label {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}
.selector-card-dims {
  font-size: var(--text-xs);
  color: var(--color-muted);
}
.selector-card-desc {
  font-size: var(--text-xs);
  color: var(--color-muted);
  line-height: 1.5;
}

/* Corner cards — icon instead of image */
.corner-icon {
  width: 36px;
  height: 36px;
  border: 2px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
}
.corner-icon.rounded {
  border-radius: 10px;
}

/* ── Quantity Table ── */
.quantity-table-wrap {
  overflow-x: auto;
}
.quantity-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}
.quantity-table th {
  background: var(--color-bg-alt);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: var(--font-semibold);
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.quantity-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.quantity-table tr.qty-row {
  cursor: pointer;
  transition: background var(--transition-fast);
}
.quantity-table tr.qty-row:hover {
  background: var(--color-primary-light);
}
.quantity-table tr.qty-row.is-selected {
  background: var(--color-selected-bg);
  border-left: 3px solid var(--color-primary);
}
.quantity-table tr.qty-row.is-selected td:first-child {
  padding-left: calc(var(--space-4) - 3px);
}
.qty-recommended {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: var(--font-bold);
  margin-left: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.price-original {
  font-size: var(--text-xs);
  color: var(--color-muted);
  text-decoration: line-through;
  margin-left: var(--space-2);
}

/* ── Summary Panel ── */
.summary-panel {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  border: 1px solid var(--color-border);
}
.summary-panel-title {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.summary-rows {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
}
.summary-row-label {
  color: var(--color-muted);
}
.summary-row-value {
  font-weight: var(--font-medium);
  color: var(--color-text);
}
.summary-row-value.is-empty {
  color: var(--color-muted);
  font-style: italic;
}
.summary-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-3) 0;
}
.summary-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.summary-total-label {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}
.summary-total-price {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  transition: color var(--transition-fast);
}
.summary-total-price.flash {
  color: var(--color-success);
}

/* ── Inline File Upload ── */
.inline-upload-zone {
  border: 2px dashed var(--color-border-dark);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  background: var(--color-bg);
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
  cursor: default;
}
.inline-upload-zone.is-dragover {
  border-color: var(--color-secondary);
  background: var(--color-selected-bg);
}
.upload-zone-idle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
  padding: var(--space-4) 0;
}
.upload-zone-icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
}
.upload-zone-text {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.6;
}
.upload-browse-btn {
  background: none;
  border: none;
  color: var(--color-secondary);
  font-weight: var(--font-semibold);
  cursor: pointer;
  font-size: inherit;
  text-decoration: underline;
  padding: 0;
}
.upload-browse-btn:hover {
  color: #6bafc8;
}
.upload-zone-hint {
  font-size: var(--text-xs);
  color: var(--color-border-dark);
}
.upload-file-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-2) 0;
}
.upload-file-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.upload-file-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  color: var(--color-primary);
}
.upload-file-icon svg {
  width: 16px;
  height: 16px;
}
.upload-file-name {
  flex: 1;
  font-size: var(--text-sm);
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.upload-file-size {
  font-size: var(--text-xs);
  color: var(--color-muted);
  white-space: nowrap;
}
.upload-file-remove {
  background: none;
  border: none;
  color: var(--color-muted);
  cursor: pointer;
  padding: var(--space-1);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition:
    color var(--transition-fast),
    background var(--transition-fast);
}
.upload-file-remove svg {
  width: 12px;
  height: 12px;
}
.upload-file-remove:hover {
  color: var(--color-error);
  background: rgba(224, 92, 92, 0.08);
}

/* ── Add to Cart Button ── */
.add-to-cart-btn {
  width: 100%;
  padding: 1rem;
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}
.add-to-cart-btn svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* ── Detail Sections ── */
.product-detail-sections {
  margin-top: var(--space-16);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.detail-section-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

.detail-section-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

/* Intro card */
.detail-intro {
  grid-column: 1 / -1;
}
.detail-intro-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.detail-intro-body {
  font-size: var(--text-base);
  color: var(--color-muted);
  line-height: 1.75;
}

/* Spec list */
.spec-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.spec-list li {
  font-size: var(--text-sm);
  color: var(--color-text);
  padding-left: var(--space-6);
  position: relative;
  line-height: 1.5;
}
.spec-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2rem;
  width: 16px;
  height: 16px;
  background: var(--color-primary);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3.5 8l3 3 6-6' stroke='white' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: cover;
}

/* 인쇄가이드 바로가기 링크 */
.print-guide-link {
  display: inline-block;
  margin-top: var(--space-8);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}
.print-guide-link:hover {
  color: #1a56db;
}

/* Use-case list */
.usecase-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.usecase-list li {
  font-size: var(--text-sm);
  color: var(--color-text);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
  line-height: 1.5;
}

/* Guideline */
.detail-guideline {
  grid-column: 1 / -1;
}
.guideline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.guideline-cell {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.guideline-cell--wide {
  grid-column: span 2;
}
.guideline-label {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.guideline-value {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: var(--font-medium);
}
.guideline-note {
  font-size: var(--text-sm);
  color: var(--color-muted);
  background: var(--color-primary-light);
  border-left: 3px solid var(--color-primary);
  padding: var(--space-3) var(--space-4);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  line-height: 1.6;
}

/* ── 후가공 옵션 ── */
.finishing-section {
  margin-bottom: var(--space-6);
  padding: var(--space-5);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.finishing-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.finishing-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: var(--space-3) var(--space-2);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: center;
  background: var(--color-white);
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast);
  position: relative;
}
.finishing-card input {
  display: none;
}
.finishing-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb, 0, 122, 255), 0.08);
}
.finishing-card.is-selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light, #e8f4ff);
}
.finishing-card.is-selected::after {
  content: "✓";
  position: absolute;
  top: 4px;
  right: 6px;
  font-size: 10px;
  color: var(--color-primary);
  font-weight: 700;
}
.finishing-icon {
  font-size: 1.4rem;
}
.finishing-label {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}
.finishing-desc {
  font-size: 0.7rem;
  color: var(--color-muted);
  line-height: 1.3;
}

.finishing-sub {
  margin-top: var(--space-3);
}
.finishing-sub-cards {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.finishing-sub-card {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  cursor: pointer;
}
.finishing-sub-card input {
  accent-color: var(--color-primary);
}

/* ── 제작 일정 ── */
.production-section {
  margin-bottom: var(--space-6);
}
.production-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.production-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
}
.production-card input {
  display: none;
}
.production-card.is-selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.production-card-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}
.production-card-desc {
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin-top: 2px;
}

.production-notice {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: #fff8e1;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: #7a5c00;
}

/* ── 인쇄 방식 배지 ── */
.print-method-badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  font-size: 0.65rem;
  font-weight: var(--font-semibold);
  margin-left: var(--space-2);
}
.print-method-badge.digital {
  background: #e8f5e9;
  color: #2e7d32;
}
.print-method-badge.bulk {
  background: #e3f2fd;
  color: #1565c0;
}

/* ── 요청 메모 ── */
.memo-section {
  margin-bottom: var(--space-6);
}
.memo-textarea {
  width: 100%;
  padding: 0.65rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  resize: vertical;
  font-family: inherit;
  margin-top: var(--space-3);
  transition: border-color var(--transition-fast);
  outline: none;
}
.memo-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(173, 216, 230, 0.25);
}

/* ── 공통 옵션 섹션 ── */
.option-section-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.option-optional {
  font-weight: var(--font-normal);
  color: var(--color-muted);
  font-size: var(--text-xs);
}

/* ── Responsive ── */
@media (max-width: 1023px) {
  .product-detail-layout {
    grid-template-columns: 1fr;
  }
  .gallery-panel {
    position: static;
  }
  .design-method-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 767px) {
  .selector-cards {
    gap: var(--space-2);
    justify-content: center;
  }
  .selector-card {
    flex: 1 1 calc(33% - var(--space-2));
    min-width: 80px;
    max-width: calc(50% - var(--space-2));
  }
  .design-method-cards {
    grid-template-columns: 1fr;
  }
  .product-detail-sections {
    grid-template-columns: 1fr;
  }
  .detail-intro {
    flex-direction: column;
    gap: var(--space-4);
  }
  .guideline-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .guideline-cell--wide {
    grid-column: span 2;
  }
  .gallery-thumb {
    width: 58px;
    height: 58px;
  }
}

/* ── Detail Tabs (4.7) ── */
.detail-tabs-bar {
  border-bottom: 2px solid var(--color-border);
  margin-top: var(--space-16);
  margin-bottom: var(--space-6);
}
.detail-tabs {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.detail-tabs::-webkit-scrollbar {
  display: none;
}

.detail-tab {
  flex-shrink: 0;
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  margin-bottom: -2px;
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast);
  white-space: nowrap;
}
.detail-tab:hover {
  color: var(--color-text);
}
.detail-tab.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: var(--font-semibold);
}

/* Template grid */
.template-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.template-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
}
.template-item svg {
  flex-shrink: 0;
  color: var(--color-primary);
}
.template-info {
  flex: 1;
}
.template-name {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
}
.template-desc {
  font-size: var(--text-xs);
  color: var(--color-muted);
}

/* Review section in detail tabs */
.review-card-detail {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
}
.review-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.review-stars-text {
  color: var(--color-secondary);
  font-size: var(--text-base);
}
.review-author {
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
}
.review-date {
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin-left: auto;
}
.review-text {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.7;
}
.review-card-image {
  margin-top: var(--space-3);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-width: 260px;
}
.review-card-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* btn-outline-sm */
.btn-outline-sm {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.8rem;
  border: 1.5px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text);
  white-space: nowrap;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}
.btn-outline-sm:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ══════════════════════════════════════════════════════
   신규 옵션 UI (2026-04-24)
   ══════════════════════════════════════════════════════ */

/* ── 가이드 링크 ── */
.guide-link {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  text-decoration: underline;
  margin-left: var(--space-2);
  opacity: 0.65;
}
.guide-link:hover {
  opacity: 1;
}

.option-guide-modal[hidden] {
  display: none;
}
.option-guide-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}
.option-guide-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 24, 39, 0.46);
}
.option-guide-dialog {
  position: relative;
  width: min(640px, 100%);
  max-height: min(720px, calc(100vh - 48px));
  overflow: auto;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-8);
}
.option-guide-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-white);
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
}
.option-guide-dialog h2 {
  margin: 0 0 var(--space-2);
  font-size: var(--text-2xl);
}
.option-guide-lead {
  margin: 0 0 var(--space-6);
  color: var(--color-muted);
  line-height: 1.6;
}
.option-guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}
.option-guide-grid > div {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: var(--color-bg);
  min-height: 120px;
  box-sizing: border-box;
}
.option-guide-grid > div.option-guide-item--wide {
  grid-column: 1 / -1;
}
.option-guide-grid strong {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
}
.option-guide-grid span {
  display: block;
  color: var(--color-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}
/* 모달 하단 전체 인쇄가이드 링크 (그리드 풀 폭) */
.option-guide-grid-link {
  grid-column: 1 / -1;
  margin-top: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-border);
  text-align: right;
  font-size: var(--text-sm);
}
.option-guide-grid-link a {
  color: var(--color-primary);
  font-weight: var(--font-semibold);
  text-decoration: none;
}
.option-guide-grid-link a:hover {
  text-decoration: underline;
}
.option-guide-detail {
  margin: var(--space-2) 0 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}
.option-guide-notes {
  margin: var(--space-2) 0 0;
  padding-left: var(--space-4);
  color: var(--color-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}
.option-guide-notes li {
  margin-bottom: var(--space-1);
}
.option-guide-images {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.option-guide-images figure {
  flex: 1;
  margin: 0;
  text-align: center;
}
.option-guide-images img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
}
.option-guide-images figcaption {
  font-size: var(--text-xs, 11px);
  color: var(--color-muted);
  margin-top: var(--space-1);
}

/* ── 용지 선택 가이드 모달 ── */
.paper-guide-modal[hidden] {
  display: none;
}
.paper-guide-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}
.paper-guide-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 24, 39, 0.46);
}
.paper-guide-dialog {
  position: relative;
  width: min(840px, 100%);
  max-height: min(80vh, 760px);
  overflow-y: auto;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-8);
}
.paper-guide-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-white);
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
}
.paper-guide-dialog h2 {
  margin: 0 0 var(--space-2);
  font-size: var(--text-2xl);
}
.paper-guide-lead {
  margin: 0 0 var(--space-6);
  color: var(--color-muted);
  line-height: 1.6;
}
.paper-guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
.paper-guide-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
}
.paper-guide-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}
.paper-guide-card-body {
  padding: var(--space-3);
}
.paper-guide-card-body strong {
  display: block;
  font-size: var(--text-sm);
  margin-bottom: var(--space-1);
}
.paper-guide-summary {
  display: block;
  font-style: normal;
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-2);
  line-height: 1.4;
}
.paper-guide-desc {
  font-size: var(--text-xs);
  color: var(--color-muted);
  line-height: 1.5;
  margin: 0 0 var(--space-2);
}
.paper-guide-use {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-muted);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-2);
  line-height: 1.4;
}
.paper-guide-use b {
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin-right: var(--space-1);
}
.paper-guide-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-border);
  text-align: right;
  font-size: var(--text-sm);
}
.paper-guide-footer a {
  color: var(--color-primary);
  font-weight: var(--font-semibold);
  text-decoration: none;
}
.paper-guide-footer a:hover {
  text-decoration: underline;
}
.option-guide-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-border);
  text-align: right;
  font-size: var(--text-sm);
}
.option-guide-footer a {
  color: var(--color-primary);
  font-weight: var(--font-semibold);
  text-decoration: none;
}
.option-guide-footer a:hover {
  text-decoration: underline;
}
@media (max-width: 640px) {
  .paper-guide-grid {
    grid-template-columns: 1fr;
  }
}

/* ── 선택가이드 제목 우측 힌트 ── */
.selector-group-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.hint-text {
  font-size: var(--text-xs);
  font-weight: var(--font-normal);
  color: var(--color-muted);
}

/* ── 사이즈 직접입력 행 ── */
.custom-size-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.custom-size-error {
  width: 100%;
  margin: 2px 0 0;
  font-size: var(--text-xs);
  color: var(--color-error, #e53e3e);
  line-height: 1.4;
}
.custom-size-section {
  margin-top: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.custom-size-section .selector-card {
  display: inline-flex;
  min-width: 120px;
  flex: none;
}
.custom-size-section .custom-size-row {
  margin-top: 0;
}
.size-input {
  flex: 1;
  max-width: 120px;
  padding: 0.5rem 0.75rem;
  border: 1.5px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition-fast);
}
.size-input:focus {
  border-color: var(--color-primary);
}
.size-input.is-error {
  border-color: var(--color-error, #e53e3e);
}
.size-input-sep {
  font-size: var(--text-sm);
  color: var(--color-muted);
}

/* ── 제작/편집 사이즈 안내 (카드 아래, 좌측 사이즈 / 우측 템플릿) ── */
.size-info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-3);
  padding: 10px 14px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  line-height: 1.4;
}
.size-info-text {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--text-md, 15px);
  color: var(--color-muted);
  font-weight: var(--font-medium);
}
.size-info-text span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.size-info-row strong {
  color: var(--color-text);
  font-weight: var(--font-bold, 700);
  font-size: 16px;
}
.btn-template-dl {
  margin-left: auto;
  font-size: 13px;
  color: var(--color-primary);
  text-decoration: underline;
  opacity: 0.85;
}
.btn-template-dl:hover {
  opacity: 1;
}
@media (max-width: 767px) {
  .size-info-row {
    align-items: flex-start;
  }
  .btn-template-dl {
    margin-left: 0;
  }
  .size-selector-cards {
    justify-content: flex-start;
  }
  .size-selector-cards .selector-card {
    flex: 0 0 auto;
  }
  .custom-size-section {
    flex-direction: column;
    align-items: flex-start;
  }
  .custom-size-section .selector-card {
    min-width: 100px;
  }
  .custom-size-section .custom-size-row {
    width: 100%;
  }
  .size-input {
    max-width: 100px;
    min-width: 0;
  }
}

/* ── option-select (드롭다운 공통) ── */
.option-select {
  width: 100%;
  padding: 0.5rem 2rem 0.5rem 0.75rem;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  background-color: var(--color-white);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%236b7280' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.65rem center;
  background-size: 12px;
  appearance: none;
  -webkit-appearance: none;
  outline: none;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}
.option-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(45, 55, 72, 0.12);
}
.option-select:disabled {
  background-color: var(--color-white);
  color: var(--color-text);
  cursor: default;
  opacity: 1;
}
/* 고정된 selector-card — 활성화된 것처럼 표시 */
.selector-card.is-fixed,
.selector-card[data-fixed="true"],
.selector-cards .selector-card.is-active.is-disabled {
  border-color: var(--color-selected-border);
  background: var(--color-selected-bg);
  cursor: default;
}
.selector-card.is-fixed .selector-card-label,
.selector-card[data-fixed="true"] .selector-card-label {
  color: inherit;
}

/* 스크롤 가능 select (수량, 페이지) */
.option-select.scrollable {
  padding: 0;
  background-image: none;
  appearance: auto;
  -webkit-appearance: auto;
  overflow-y: auto;
  overscroll-behavior: contain;
  max-height: 200px;
  height: auto;
  min-height: unset;
}
.option-select.scrollable option {
  padding: 0.55rem 0.75rem;
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--color-border);
}
.option-select.scrollable option:checked {
  background: var(--color-selected-bg);
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}

/* ── 페이지 커스텀 드롭다운 ── */
.page-select-wrap {
  position: relative;
}
.page-select-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  background: var(--color-white);
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
  text-align: left;
  transition: border-color var(--transition-fast);
}
.page-select-btn:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(45, 55, 72, 0.12);
}
.page-select-btn[aria-expanded="true"] {
  border-color: var(--color-primary);
}
.page-select-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 220px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--color-white);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  z-index: 200;
  padding: 4px 0;
  margin: 0;
  list-style: none;
  display: none;
}
.page-select-list.is-open {
  display: block;
}
.page-select-list li {
  padding: 0.4rem 0.75rem;
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
}
.page-select-list li:hover {
  background: var(--color-primary-light);
}
.page-select-list li.is-selected {
  background: var(--color-selected-bg);
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}

/* ── 드롭다운 두 개 나란히 ── */
.option-dropdown-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

/* ── 코팅 그룹 ── */
.coating-notice-inline {
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin-left: var(--space-2);
}
.coating-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: flex-start;
}
.coating-btn-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.coating-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.45rem 0.85rem;
  border: 1.5px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  background: var(--color-white);
  color: var(--color-text);
  cursor: pointer;
  white-space: nowrap;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
}
.coating-btn:hover {
  border-color: var(--color-primary);
}
.coating-btn.is-active {
  border-color: var(--color-selected-border);
  background: var(--color-selected-bg);
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}
.coating-sub {
  display: flex;
  gap: var(--space-1);
  margin-left: var(--space-1);
}
.coating-sub-btn {
  padding: 0.3rem 0.6rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  background: var(--color-bg-alt);
  color: var(--color-muted);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    color var(--transition-fast);
}
.coating-sub-btn.is-active {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}

/* ── 후가공 트리거 카드 ── */
.finishing-trigger-cards {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.finishing-dropdown-row {
  width: 100%;
}

/* ── 후가공 버튼 카드 (요구사항 #5: 셀렉트 → 버튼 형식) ── */
.finishing-button-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-2);
  width: 100%;
}
.finishing-button-cards .selector-card {
  text-align: center;
  padding: 0.7rem 0.5rem;
  border: 1.5px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  background: var(--color-white);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.finishing-button-cards .selector-card:hover {
  border-color: var(--color-primary);
}
.finishing-button-cards .selector-card.is-active {
  border-color: var(--color-primary);
  background: var(--color-selected-bg);
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}
@media (max-width: 767px) {
  .finishing-button-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .finishing-button-cards .selector-card {
    max-width: none;
    min-width: 0;
    flex: none;
  }
}
.finishing-selected-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.finishing-selected-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--color-selected-border);
  border-radius: var(--radius-md);
  background: var(--color-selected-bg);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  cursor: pointer;
}
.finishing-selected-chip[hidden] {
  display: none !important;
}
.finishing-trigger-card {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45rem 0.85rem;
  border: 1.5px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  background: var(--color-white);
  color: var(--color-text);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
}
.finishing-trigger-card:hover {
  border-color: var(--color-primary);
}
.finishing-trigger-card.is-active {
  border-color: var(--color-selected-border);
  background: var(--color-selected-bg);
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}
.finishing-trigger-card.is-active::before {
  content: "✓ ";
}

/* ── 후가공 서브 패널 ── */
.finishing-sub-panel {
  margin-top: var(--space-3);
  padding: var(--space-4);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.finishing-sub-panel[hidden] {
  display: none !important;
}
.finishing-sub-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

/* ── 박 아이템 ── */
.foil-item {
  display: grid;
  grid-template-columns: 40px 1fr 1fr 1fr auto;
  gap: var(--space-2);
  align-items: center;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
}
.foil-item:last-child {
  border-bottom: none;
}
.foil-item.epoxy-item {
  grid-template-columns: 1fr 1fr 1fr auto;
}
.foil-color-picker {
  width: 36px;
  height: 36px;
  padding: 2px;
  border: 1.5px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: none;
}
.foil-side-select,
.foil-size-input {
  height: 38px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-text);
  background: var(--color-white);
  outline: none;
  width: 100%;
  box-sizing: border-box;
  vertical-align: middle;
}
.foil-remove-btn {
  background: none;
  border: none;
  color: var(--color-muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: var(--space-1);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}
.foil-remove-btn:hover {
  color: var(--color-error);
}
.foil-add-btn {
  margin-top: var(--space-2);
  padding: 0.4rem 0.8rem;
  border: 1.5px dashed var(--color-primary);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-primary);
  background: transparent;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.foil-add-btn:hover {
  background: var(--color-primary-light);
}

/* ── form-field ── */
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.form-field-label {
  font-size: var(--text-xs);
  color: var(--color-muted);
}
.finishing-size-input {
  padding: 0.45rem 0.75rem;
  border: 1.5px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition-fast);
}
.finishing-size-input:focus {
  border-color: var(--color-primary);
}

/* ── 형압/에폭시 가로×세로 분리 입력 ── */
.finishing-size-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.finishing-size-row .finishing-size-input {
  flex: 1;
  min-width: 0;
}
.finishing-size-sep {
  color: var(--color-muted);
  font-size: var(--text-sm);
  flex-shrink: 0;
}

/* ── 책자형태/제본방향 ── */
.booklet-direction-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.booklet-direction-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.selector-group-subtitle {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ── 내지/표지 서브섹션 ── */
.subsection {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  background: var(--color-bg-alt);
}
.subsection-title {
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  color: var(--color-text);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* 표지 사이즈 안내 */
.cover-size-info {
  padding: var(--space-3) var(--space-4);
  background: #fffbe6;
  border: 1px solid #f5e07a;
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  color: #7a6000;
}

/* ── 파일 업로드 버튼 ── */
.btn-upload {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--color-secondary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  cursor: pointer;
  transition: background var(--transition-fast);
}
.btn-upload:hover {
  background: #6bafc8;
}

/* ── 책자 카드(선택지 2개 이상) — 작게 ── */
.booklet-section .selector-card,
.subsection .selector-card {
  min-width: 72px;
  padding: var(--space-2) var(--space-3);
}
.booklet-section .selector-card .selector-card-label,
.subsection .selector-card .selector-card-label {
  font-size: var(--text-xs);
}
.finishing-button-cards .selector-card {
  min-width: unset;
  padding: 0.7rem 0.5rem;
}
.finishing-button-cards .selector-card .selector-card-label {
  font-size: var(--text-sm);
}

/* ── 표지 용지 같음/다름 토글 카드 ── */
.cover-same-cards .selector-card {
  flex: 1;
}

/* ── 표지 용지 상세 (중철: 내지와 다를 때만 표시) ── */
.cover-paper-detail {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* ── 수량 select 레이블 ── */
#qty-label {
  font-weight: var(--font-semibold);
}

/* ── 서브패널 레이블 (인라인 스타일 제거용) ── */
.sub-panel-label {
  font-size: 0.8rem;
  font-weight: var(--font-semibold);
  color: var(--color-muted);
  margin-top: var(--space-2);
}

/* ── form-field 서브패널 내 상단 여백 ── */
.form-field--mt {
  margin-top: var(--space-2);
}

/* ── 에폭시 힌트 텍스트 ── */
.epoxy-hint {
  margin-top: 0.25rem;
}

/* ── 표지 후가공 섹션 상단 여백 ── */
.cover-finishing-section {
  margin-top: var(--space-4);
}

/* ── 표지 박 옵션 행 (color picker + 가로/세로 입력) ── */
.foil-cover-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.foil-cover-row input[type="color"] {
  width: 40px;
  height: 36px;
  padding: 2px;
  border: 1.5px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  cursor: pointer;
  flex-shrink: 0;
}
.foil-cover-row .foil-color-select,
.foil-cover-row .custom-select-wrap {
  flex: 1.4;
  min-width: 0;
}
.foil-cover-row .finishing-size-input {
  flex: 0 0 100px;
  min-width: 0;
}

/* ── badge-warning 크기 ── */
.badge-warning {
  font-size: 0.65rem;
}

/* ── 반응형 ── */
@media (max-width: 767px) {
  .product-detail-page {
    overflow-x: clip;
  }
  .option-guide-grid {
    grid-template-columns: 1fr;
  }
  .upload-zone,
  .inline-upload-zone {
    padding: var(--space-4);
    box-sizing: border-box;
  }
  .upload-file-item {
    min-width: 0;
  }
  .option-dropdown-row {
    grid-template-columns: 1fr;
  }
  .booklet-direction-row {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .coating-group {
    flex-direction: column;
  }
  .foil-item {
    grid-template-columns: 36px 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .foil-item > .foil-remove-btn {
    grid-column: 3;
    grid-row: 1;
  }
  /* 박 옵션 - 종류선택 full width, 가로/세로 나란히 */
  .foil-cover-row {
    flex-wrap: wrap;
  }
  .foil-cover-row .foil-color-select,
  .foil-cover-row .custom-select-wrap {
    flex: 0 0 100%;
    min-width: 0;
  }
  .foil-cover-row .finishing-size-input {
    flex: 1 1 40%;
    min-width: 0;
  }
  /* 에폭시/형압 사이즈 행 — 두 입력칸이 한 줄에 나란히 */
  .finishing-size-row .finishing-size-input {
    flex: 1;
    min-width: 60px;
  }
  /* 선택된 후가공 칩 정렬 */
  .finishing-selected-chip {
    display: inline-flex;
    align-items: center;
  }
}

/* ══════════════════════════════════════════════════════
   UI 개선 (2026-04-25)
   ══════════════════════════════════════════════════════ */

/* ── 인쇄면 + 색상 통합 행 ── */
.print-color-combo-row {
  display: flex;
  gap: var(--space-2);
}
.print-color-combo-row .selector-cards {
  flex: 1;
  min-width: 0;
}
.selector-card-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  transition: color var(--transition-fast);
}
.selector-card.is-active .selector-card-icon {
  color: var(--color-primary);
}
@media (max-width: 479px) {
  .print-color-combo-row {
    flex-direction: column;
  }
}

/* ── 수량/부수 카드 그리드 ── */
.qty-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}
.qty-card {
  padding: var(--space-3);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  cursor: pointer;
  background: var(--color-white);
  text-align: center;
  font-size: var(--text-sm);
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast);
  user-select: none;
}
.qty-card:hover {
  border-color: var(--color-border-dark);
  background: var(--color-primary-light);
}
.qty-card.is-active {
  border-color: var(--color-selected-border);
  background: var(--color-selected-bg);
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}
.qty-card-label {
  font-weight: var(--font-medium);
  color: inherit;
}
.qty-card-price {
  font-size: var(--text-xs);
  color: var(--color-muted);
}
.qty-card.is-active .qty-card-price {
  color: var(--color-primary);
  opacity: 0.8;
}
.qty-card[disabled],
.qty-card-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
  background: var(--color-bg-alt);
  color: var(--color-muted);
}
.qty-print-notice {
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin: 0 0 var(--space-2) 0;
}
.qty-more-btn {
  margin-top: var(--space-2);
  width: 100%;
  padding: 0.45rem 0;
  background: none;
  border: 1.5px dashed var(--color-border-dark);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  color: var(--color-muted);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    color var(--transition-fast);
}
.qty-more-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
/* 모바일 수량 1줄 2칸 (요구사항 #8) */
@media (max-width: 767px) {
  .qty-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── 장바구니 버튼 행 (바로 주문 제거됨 — v3에서 재정의) ── */

/* ══════════════════════════════════════════════════════
   UI 개선 v2 (2026-04-25) — docs/상품상세.md
   ══════════════════════════════════════════════════════ */

/* 1-A. 필수 배지 */
.badge-required {
  display: inline-flex;
  align-items: center;
  padding: 0 6px;
  height: 18px;
  background: var(--color-primary);
  color: #fff;
  font-size: 10px;
  font-weight: var(--font-semibold);
  border-radius: var(--radius-sm);
  vertical-align: middle;
  margin-left: var(--space-2);
  letter-spacing: 0.02em;
}

/* 1-B. 추천 용도 태그 */
.use-case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-2);
  margin-bottom: var(--space-1);
}
.use-case-tag {
  padding: 2px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-dark);
  font-size: var(--text-xs);
  color: var(--color-muted);
  background: var(--color-bg-alt);
}

/* 1-C. 후가공 카드 compact — pill 스타일 override */
.finishing-trigger-card {
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
}
.finishing-trigger-card.is-active {
  background: var(--color-primary-light);
}
.finishing-trigger-card.is-active::before {
  content: none;
}

/* 1-D. 파일업로드 존 — mypage review-upload-zone 스타일 매칭 */
.upload-zone {
  border: 2px dashed var(--color-border-dark);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-bg-alt);
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
  cursor: default;
}
.upload-zone.drag-over {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.upload-zone-text {
  font-size: var(--text-sm);
  color: var(--color-muted);
  margin: 0;
}
.upload-browse-btn {
  background: none;
  border: none;
  padding: 0;
  color: var(--color-primary);
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  cursor: pointer;
  text-decoration: underline;
}
.upload-browse-btn:hover {
  color: var(--color-secondary);
}
.upload-zone-hint {
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin: 0;
}

/* ══════════════════════════════════════════════════════
   UI 개선 v3 (2026-04-25) — docs/상품상세.md 잔여 요구사항
   ══════════════════════════════════════════════════════ */

/* 추천용도 텍스트 단락 */
.use-case-text {
  font-size: var(--text-sm);
  color: var(--color-muted);
  margin-top: var(--space-2);
  margin-bottom: var(--space-1);
  line-height: 1.6;
}

/* 장바구니 단독 full-width (바로 주문 제거 후) */
.cart-action-row {
  display: flex;
  gap: var(--space-3);
}
.cart-action-row .btn {
  flex: 1;
}

/* 책자 선택 카드 hover/active 시 테두리 변화 없음 */
.booklet-section .selector-card:hover,
.booklet-section .selector-card:focus,
.subsection .selector-card:hover,
.subsection .selector-card:focus {
  border-color: var(--color-border-dark);
  box-shadow: none;
}
.booklet-section .selector-card.is-active:hover,
.subsection .selector-card.is-active:hover {
  border-color: var(--color-primary);
  box-shadow: none;
}

/* ══════════════════════════════════════════════════════
   신규 옵션 섹션 스타일 (상품상세수정.md 적용)
   ══════════════════════════════════════════════════════ */

/* 후가공 카드 X 버튼 */
.finishing-card-label {
  flex: 1;
}
.finishing-card-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-border-dark);
  color: var(--color-muted);
  font-size: 10px;
  line-height: 1;
  cursor: pointer;
  border: none;
  padding: 0;
  margin-left: var(--space-1);
  transition:
    background var(--transition-fast),
    color var(--transition-fast);
}
.finishing-card-remove[hidden] {
  display: none !important;
}
.finishing-card-remove:hover {
  background: var(--color-error, #ef4444);
  color: var(--color-white);
}
/* is-active 상태에서 X 버튼 항상 표시 (단일 항목 선택 시에도) */
.finishing-trigger-card.is-active .finishing-card-remove:not([hidden]) {
  display: inline-flex !important;
}

/* 고정 옵션 표시 레이블 */
.option-fixed-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45rem 0.85rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
  font-size: var(--text-sm);
  color: var(--color-text-muted, var(--color-muted));
}
.fixed-badge {
  font-size: 0.65rem;
  padding: 1px 5px;
  border-radius: var(--radius-sm);
  background: var(--color-border-dark);
  color: var(--color-muted);
  font-weight: var(--font-medium);
}

/* 코팅 고정 안내 */
.coating-fixed-note {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-muted);
}

/* 접지 카드 */
.folding-cards {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* 보드 유형 카드 */
.board-type-cards {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* 액자 유형 */
.frame-material-selector {
  margin-bottom: var(--space-3);
}
.frame-sub-opts {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.frame-sub-opts[hidden] {
  display: none;
}
.frame-material-label {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}
.frame-aluminum-dropdown-row {
  grid-template-columns: 1fr;
}
/* MDF 컬러/아크릴 옵션 칸 너비 동일 (요구사항 #11) */
#frame-mdf-opts .option-dropdown-row,
#frame-aluminum-opts .option-dropdown-row {
  display: block;
  width: 100%;
}
#frame-mdf-opts .custom-select-wrap,
#frame-aluminum-opts .custom-select-wrap {
  width: 100%;
}
#frame-mdf-opts .custom-select-trigger,
#frame-aluminum-opts .custom-select-trigger {
  width: 100%;
  min-width: 0;
}

/* 반응형 */
@media (max-width: 600px) {
  .board-type-cards,
  .folding-cards {
    gap: var(--space-1);
  }
}

/* ══════════════════════════════════════════════════════
   커스텀 셀렉트 드롭다운 (항상 아래로 열림)
   native <select>를 숨기고 JS가 생성한 버튼+리스트로 대체
   ══════════════════════════════════════════════════════ */

/* native select 숨기기 — 커스텀 버튼+리스트로 대체 */
.option-select:not(.scrollable) {
  display: none !important;
}

/* 래퍼 — option-dropdown-row 그리드 셀을 그대로 차지 */
.custom-select-wrap {
  position: relative;
  width: 100%;
  z-index: 1;
}
.custom-select-wrap.is-open,
.custom-select-wrap:has(.custom-select-btn[aria-expanded="true"]) {
  z-index: 100;
}

/* 트리거 버튼 */
.custom-select-btn {
  width: 100%;
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  background: var(--color-white);
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  outline: none;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}
.custom-select-btn:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(45, 55, 72, 0.12);
}
.custom-select-btn[aria-expanded="true"] {
  border-color: var(--color-primary);
}
.custom-select-btn:disabled {
  background: var(--color-bg-alt);
  color: var(--color-muted);
  cursor: not-allowed;
  opacity: 0.6;
}
.custom-select-btn svg {
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}
.custom-select-btn[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

/* 표시 텍스트 */
.custom-select-value {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.custom-select-btn.is-placeholder .custom-select-value {
  color: var(--color-muted);
}

/* 드롭다운 리스트 — 버튼 아래에 오버레이로 열림 */
.custom-select-list {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  max-height: 220px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--color-white);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  padding: 4px 0;
  margin: 0;
  list-style: none;
  display: none;
}
.custom-select-btn[aria-expanded="true"] + .custom-select-list {
  display: block;
}
.custom-select-list li {
  padding: 0.4rem 0.75rem;
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: background var(--transition-fast);
}
.custom-select-list li:hover {
  background: var(--color-primary-light);
}
.custom-select-list li.is-selected {
  background: var(--color-selected-bg);
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}

/* ══════════════════════════════════════════════════════
   이미지 드롭다운 (박 종류 등) — 첨부 참고 아바타+이름 패턴
   ══════════════════════════════════════════════════════ */
.custom-select-btn.has-image {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.custom-select-btn.has-image .custom-select-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}
.custom-select-btn.has-image .custom-select-thumb[hidden] {
  display: none;
}
.custom-select-btn.has-image .custom-select-value {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.custom-select-list.has-image li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
}
.custom-select-list.has-image li .custom-select-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}
.custom-select-list.has-image li .custom-select-thumb.is-empty {
  display: inline-block;
}
.custom-select-list.has-image li .custom-select-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.custom-select-list.has-image li .custom-select-check {
  color: var(--color-primary);
  flex-shrink: 0;
  visibility: hidden;
}
.custom-select-list.has-image li.is-selected .custom-select-check {
  visibility: visible;
}

/* 리스트 스크롤 (옵션이 많을 때) */
.custom-select-list {
  max-height: 320px;
  overflow-y: auto;
}

/* ══════════════════════════════════════════════════════
   박 그리드 — 컬러피커 → 이미지 드롭다운으로 변경됨
   첫 컬럼을 폭 있게 유지 (이미지 드롭다운 폭 확보)
   ══════════════════════════════════════════════════════ */
.foil-item {
  grid-template-columns: minmax(160px, 1.4fr) 1fr 1fr 1fr auto;
  align-items: center;
}
.foil-item .foil-color-select {
  width: 100%;
}
/* foil-color-select가 buildCustomSelect로 변환되면 wrap이 자리 차지 */
.foil-item .custom-select-wrap {
  width: 100%;
}
/* 박 한 줄 컨트롤 높이 강제 잠금 — button(min-height)·input(height) 차이 흡수 */
.foil-item .custom-select-btn,
.foil-item .foil-side-select,
.foil-item .foil-size-input {
  height: 38px;
  min-height: 38px;
  max-height: 38px;
  line-height: 1.2;
  box-sizing: border-box;
}
.foil-item .custom-select-btn {
  padding-top: 0;
  padding-bottom: 0;
}
/* 트리거 내부 자식들도 라인 정렬 */
.foil-item .custom-select-btn .custom-select-thumb,
.foil-item .custom-select-btn .custom-select-value,
.foil-item .custom-select-btn svg {
  line-height: 1;
}

/* ══════════════════════════════════════════════════════
   반응형 — 태블릿/모바일
   ══════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  .foil-item {
    grid-template-columns: 1fr 1fr auto;
    grid-template-areas:
      "color color remove"
      "side  side  side"
      "w     h     .";
    gap: var(--space-2);
    align-items: center;
  }
  .foil-item > .custom-select-wrap:first-child,
  .foil-item > .foil-color-select:first-child {
    grid-area: color;
  }
  .foil-item .foil-side-select,
  .foil-item > .custom-select-wrap:nth-of-type(2) {
    grid-area: side;
    width: 100%;
  }
  .foil-item .foil-size-input:nth-of-type(1) {
    grid-area: w;
  }
  .foil-item .foil-size-input:nth-of-type(2) {
    grid-area: h;
  }
  .foil-item .foil-remove-btn {
    grid-area: remove;
    justify-self: end;
    align-self: center;
  }
  .foil-item.epoxy-item {
    grid-template-columns: 1fr 1fr auto;
    grid-template-rows: auto auto;
  }
  .foil-item.epoxy-item .foil-side-select {
    grid-column: 1 / 3;
    grid-row: 1;
    width: 100%;
  }
  .foil-item.epoxy-item .foil-remove-btn {
    grid-column: 3;
    grid-row: 1;
    justify-self: end;
    align-self: center;
  }
  .foil-item.epoxy-item .foil-size-input:nth-of-type(1) {
    grid-column: 1;
    grid-row: 2;
  }
  .foil-item.epoxy-item .foil-size-input:nth-of-type(2) {
    grid-column: 2;
    grid-row: 2;
  }

  .custom-select-list {
    max-height: 60vh;
  }
}

/* ══════════════════════════════════════════════════════
   disabled 상태 보강 — 드롭다운 / selector-card / qty-card
   ══════════════════════════════════════════════════════ */
.custom-select-btn.is-readonly {
  opacity: 1;
  cursor: pointer;
  background: var(--color-white);
  color: var(--color-text);
}
.selector-card[disabled],
.selector-card.is-disabled {
  opacity: 1;
  background: var(--color-white);
}

/* ── 모달 열릴 때 배경 스크롤 방지 ── */
html.modal-open,
body.modal-open {
  overflow: hidden;
}

/* ── 선택가이드 세로 1열 나열 ── */
.option-guide-grid.is-single-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}
.option-guide-grid.is-single-row > div {
  width: 100%;
}
.option-guide-grid.is-single-row .option-guide-grid-link {
  grid-column: 1;
  justify-self: end;
  width: auto;
  padding: 0;
  margin-top: var(--space-1);
  border: none;
  background: none;
  min-height: 0;
}

/* 금액 변경 로딩  */
.qty-card.qty-price-loading { opacity: 0.5; pointer-events: none; }
.qty-card.qty-price-unavailable .qty-card-price { color: #aaa; }