/* ============================================
   Gulfstream Mattress Specifier
   Standalone page — no PRIMOS nav
   ============================================ */

/* Reset & Base */
body.gs-specifier {
  margin: 0;
  padding: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--color-gray-50);
  color: var(--color-gray-900);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.gs-specifier * {
  box-sizing: border-box;
}

/* ---- Header ---- */
.gs-header {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.gs-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gs-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.gs-logo {
  height: 42px;
  width: auto;
  filter: brightness(0) invert(1);
}

.gs-titles {
  display: flex;
  flex-direction: column;
}

.gs-title {
  font-family: 'Outfit', 'Inter', sans-serif;
  font-size: 22px;
  font-weight: 600;
  color: #fff;
  margin: 0;
  letter-spacing: 0.5px;
}

.gs-subtitle {
  font-size: 12px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.6);
  margin: 2px 0 0 0;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ---- Main ---- */
.gs-main {
  flex: 1;
  padding: 32px 24px 48px;
}

.gs-container {
  max-width: 1200px;
  margin: 0 auto;
}

/* ---- Intro ---- */
.gs-intro {
  margin-bottom: 32px;
}

.gs-intro p {
  font-size: 15px;
  color: var(--color-gray-600);
  margin: 0;
  line-height: 1.6;
}

/* ---- Filter Steps ---- */
.gs-filters {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 32px;
}

.gs-step {
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-200);
  overflow: hidden;
  transition: opacity var(--transition-normal), box-shadow var(--transition-normal);
}

.gs-step-locked {
  opacity: 0.45;
  pointer-events: none;
}

.gs-step-locked.gs-step-hidden {
  display: none;
}

.gs-step-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-gray-200);
  background: var(--color-gray-50);
}

.gs-step-number {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.gs-step-locked .gs-step-number {
  background: var(--color-gray-400);
}

.gs-step-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-gray-800);
}

.gs-step-hint {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-gray-400);
  margin-left: auto;
  font-style: italic;
}

.gs-step-content {
  padding: 20px;
}

/* ---- Aircraft Grid ---- */
.gs-aircraft-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}

.gs-aircraft-card {
  padding: 14px 12px;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: #fff;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-gray-700);
}

.gs-aircraft-card:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: #fdf2f5;
}

.gs-aircraft-card.active {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(139, 21, 56, 0.3);
}

/* ---- Config Grid ---- */
.gs-config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}

.gs-config-card {
  padding: 14px 16px;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}

.gs-config-card:hover {
  border-color: var(--color-primary);
  background: #fdf2f5;
}

.gs-config-card.active {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(139, 21, 56, 0.3);
}

.gs-config-icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
  color: var(--color-gray-500);
}

.gs-config-card.active .gs-config-icon {
  color: rgba(255, 255, 255, 0.8);
}

.gs-config-name {
  font-size: 14px;
  font-weight: 500;
}

.gs-config-count {
  font-size: 11px;
  color: var(--color-gray-400);
  margin-left: auto;
  flex-shrink: 0;
}

.gs-config-card.active .gs-config-count {
  color: rgba(255, 255, 255, 0.7);
}

/* ---- Product Line Grid ---- */
.gs-product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}

.gs-product-card {
  padding: 14px 16px;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: #fff;
  text-align: center;
}

.gs-product-card:hover {
  border-color: var(--color-primary);
  background: #fdf2f5;
}

.gs-product-card.active {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(139, 21, 56, 0.3);
}

.gs-product-name {
  font-size: 14px;
  font-weight: 600;
}

.gs-product-count {
  font-size: 11px;
  color: var(--color-gray-400);
  margin-top: 4px;
}

.gs-product-card.active .gs-product-count {
  color: rgba(255, 255, 255, 0.7);
}

/* ---- Active Filters Bar ---- */
.gs-active-filters {
  margin-bottom: 24px;
}

.gs-filters-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 12px 16px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
}

.gs-filters-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.gs-filter-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.gs-filter-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
}

.gs-filter-tag-remove {
  cursor: pointer;
  opacity: 0.7;
  font-size: 10px;
}

.gs-filter-tag-remove:hover {
  opacity: 1;
}

.gs-clear-all {
  margin-left: auto;
  background: none;
  border: 1px solid var(--color-gray-300);
  color: var(--color-gray-500);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.gs-clear-all:hover {
  border-color: var(--color-danger);
  color: var(--color-danger);
}

/* ---- Results ---- */
.gs-results {
  margin-bottom: 48px;
}

.gs-results-header {
  margin-bottom: 16px;
}

.gs-results-title {
  font-family: 'Outfit', 'Inter', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-gray-800);
  margin: 0;
}

.gs-results-title span {
  color: var(--color-primary);
}

.gs-results-subtitle {
  font-size: 13px;
  color: var(--color-gray-500);
  margin: 4px 0 0 0;
}

.gs-results-table-wrap {
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-200);
  overflow-x: auto;
}

.gs-results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.gs-results-table thead {
  background: var(--color-gray-50);
}

.gs-results-table th {
  padding: 12px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-gray-500);
  border-bottom: 1px solid var(--color-gray-200);
  white-space: nowrap;
}

.gs-results-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-gray-100);
  vertical-align: top;
}

.gs-results-table tbody tr:last-child td {
  border-bottom: none;
}

.gs-results-table tbody tr.gs-clickable:hover {
  background: var(--color-gray-50);
}

.gs-sku {
  font-family: var(--font-family-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}

.gs-sku-pdm {
  color: var(--color-gray-600);
}

.gs-desc {
  font-weight: 500;
  color: var(--color-gray-800);
  max-width: 320px;
}

.gs-price {
  font-family: var(--font-family-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-gray-700);
  white-space: nowrap;
}

/* ---- Style Badges ---- */
.gs-type-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.gs-type-badge.sport {
  background: #e3f2fd;
  color: #1565c0;
}

.gs-type-badge.classic {
  background: #e8f5e9;
  color: #2e7d32;
}

.gs-type-badge.minimalist {
  background: #f3e5f5;
  color: #7b1fa2;
}

.gs-type-badge.tailored {
  background: #fff3e0;
  color: #e65100;
}

/* ---- Detail Drawer ---- */
.gs-detail-row {
  display: none;
}

.gs-detail-row.open {
  display: table-row;
}

.gs-detail-cell {
  padding: 0 16px 16px;
  background: var(--color-gray-50);
}

.gs-detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  padding: 16px 0;
}

.gs-detail-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.gs-detail-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-gray-400);
}

.gs-detail-value {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-gray-800);
}

/* ---- Density Variants Section ---- */
.gs-density-section {
  border-top: 1px solid var(--color-gray-200);
  padding-top: 12px;
  margin-top: 4px;
}

.gs-density-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-gray-400);
  margin-bottom: 8px;
}

.gs-density-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.gs-density-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 12px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
}

.gs-density-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.gs-density-item.gs-density-active {
  border-color: var(--color-primary);
  background: #fdf2f5;
}

.gs-density-item.gs-density-active .gs-density-label {
  color: var(--color-primary);
}

/* ---- Old SKU Section ---- */
.gs-old-sku-section {
  border-top: 1px solid var(--color-gray-200);
  padding-top: 12px;
  margin-top: 12px;
}

/* Row expand indicator */
.gs-results-table tbody tr.gs-clickable {
  cursor: pointer;
}

/* ---- Empty State ---- */
.gs-empty {
  text-align: center;
  padding: 60px 24px;
  color: var(--color-gray-400);
}

.gs-empty i {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.gs-empty p {
  font-size: 15px;
  margin: 0;
}

/* ---- Footer ---- */
.gs-footer {
  background: var(--color-gray-800);
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  padding: 24px;
  font-size: 13px;
  margin-top: auto;
}

.gs-footer p {
  margin: 4px 0;
}

.gs-footer a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
}

.gs-footer a:hover {
  color: #fff;
  text-decoration: underline;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .gs-header-inner {
    padding: 16px;
  }

  .gs-logo {
    height: 32px;
  }

  .gs-title {
    font-size: 17px;
  }

  .gs-subtitle {
    font-size: 10px;
  }

  .gs-main {
    padding: 20px 16px 32px;
  }

  .gs-aircraft-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 8px;
  }

  .gs-aircraft-card {
    padding: 10px 8px;
    font-size: 13px;
  }

  .gs-config-grid {
    grid-template-columns: 1fr;
  }

  .gs-product-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }

  .gs-results-table {
    font-size: 12px;
  }

  .gs-results-table th,
  .gs-results-table td {
    padding: 10px 12px;
  }

  .gs-detail-grid {
    grid-template-columns: 1fr 1fr;
  }

  .gs-density-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .gs-brand {
    gap: 10px;
  }

  .gs-title {
    font-size: 15px;
  }

  .gs-aircraft-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}