/**
 * Modern Single-Page Design Layout
 * Beautiful, efficient, and user-friendly interface
 */

/* CSS Variables for Modern Theme */
:root {
  --primary-gradient: linear-gradient(135deg, #a56239 0%, #683220 100%);
  --primary-color: #a56239;
  --primary-dark: #683220;
  --primary-light: #efe3d1;
  --secondary-color: #ac9b7e;
  --accent-color: #ac9b7e;

  --success-color: #10b981;
  --success-light: #d1fae5;
  --warning-color: #f59e0b;
  --error-color: #ef4444;

  --text-primary: #2f1b12;
  --text-secondary: #7a5c43;
  --text-muted: rgba(47, 27, 18, 0.65);

  --bg-primary: #fffaf2;
  --bg-secondary: #f3ece2;
  --bg-tertiary: #e6dccb;

  --border-color: rgba(104, 50, 32, 0.28);
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;

  --shadow-sm: 0 1px 2px 0 rgba(104, 50, 32, 0.12);
  --shadow-md: 0 4px 6px -1px rgba(104, 50, 32, 0.18), 0 2px 4px -1px rgba(104, 50, 32, 0.12);
  --shadow-lg: 0 10px 15px -3px rgba(104, 50, 32, 0.2), 0 4px 6px -2px rgba(104, 50, 32, 0.12);
  --shadow-xl: 0 20px 25px -5px rgba(104, 50, 32, 0.24), 0 10px 10px -5px rgba(104, 50, 32, 0.15);

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Main Container - Flexbox Layout */
.nestoryai-modern-container {
  display: flex;
  min-height: 100vh;
  background: var(--bg-secondary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-primary);
  line-height: 1.5;
}

/* ==================== LEFT SIDEBAR ==================== */
.nestoryai-sidebar {
  width: 280px;
  background: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  box-shadow: var(--shadow-sm);
}

/* Sidebar Header */
.sidebar-header {
  padding: 2rem 1.5rem 1.5rem;
  background: var(--primary-gradient);
  color: white;
  border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
  margin-bottom: 1.5rem;
}

.ai-credit-widget {
  margin-top: 1.25rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--border-radius-sm);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ai-credit-widget .credit-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.85);
}

.ai-credit-widget .credit-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: #ffffff;
}

.ai-credit-widget .credit-default {
  display: none;
}

.ai-credit-note {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.9);
}

.ai-credit-note--warning {
  color: #ffe8d4;
}

.ai-credit-warning {
  display: none;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--error-color);
}

.ai-credit-warning.is-visible {
  display: block;
}

.sidebar-title {
  font-size: 1.375rem;
  font-weight: 700;
  margin: 0 0 0.375rem 0;
  letter-spacing: -0.025em;
}

.sidebar-subtitle {
  font-size: 0.875rem;
  margin: 0;
  opacity: 0.9;
  font-weight: 400;
}

/* Vertical Steps Navigation */
.vertical-steps {
  flex: 1;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.vertical-step {
  display: flex;
  align-items: center;
  padding: 1rem;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.vertical-step::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--primary-gradient);
  transform: scaleY(0);
  transition: transform var(--transition-base);
}

.vertical-step:hover {
  background: var(--primary-light);
  transform: translateX(4px);
}

.vertical-step.active {
  background: var(--primary-light);
  border-color: var(--primary-color);
}

.vertical-step.active::before {
  transform: scaleY(1);
}

.vertical-step.completed {
  background: var(--success-light);
  border-color: var(--success-color);
}

.vertical-step.completed::before {
  background: var(--success-color);
  transform: scaleY(1);
}

.step-indicator-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-right: 0.875rem;
}

.vertical-step .step-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  border: 2px solid var(--border-color);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.vertical-step.active .step-number {
  background: var(--primary-gradient);
  color: white;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px var(--primary-light);
}

.vertical-step.completed .step-number {
  background: var(--success-color);
  color: white;
  border-color: var(--success-color);
}

.vertical-step .step-icon {
  font-size: 1.25rem;
  line-height: 1;
}

.step-info {
  flex: 1;
}

.step-info .step-title {
  font-size: 0.9375rem;
  font-weight: 600;
  margin: 0 0 0.25rem 0;
  color: var(--text-primary);
}

.step-info .step-desc {
  font-size: 0.8125rem;
  margin: 0;
  color: var(--text-secondary);
}

/* Sidebar Footer with Generate Button */
.sidebar-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-primary);
}

.generate-design-btn {
  width: 100%;
  padding: 1rem;
  background: var(--primary-gradient);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.generate-design-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.generate-design-btn:hover::before {
  width: 300px;
  height: 300px;
}

.generate-design-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.generate-design-btn:active {
  transform: translateY(0);
}

.generate-design-btn:disabled {
  background: var(--bg-tertiary);
  color: var(--text-muted);
  cursor: not-allowed;
  box-shadow: none;
}

.generate-design-btn:disabled:hover {
  transform: none;
}

.btn-icon {
  font-size: 1.25rem;
}

.btn-text {
  position: relative;
  z-index: 1;
}

/* ==================== MAIN CONTENT AREA ==================== */
.nestoryai-main-content {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
  max-width: 1400px;
  margin: 0 auto;
}

/* Section Styling */
.design-section {
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

.design-section:hover {
  box-shadow: var(--shadow-lg);
}

.section-header {
  margin-bottom: 1.5rem;
  text-align: center;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.025em;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
  font-weight: 400;
}

/* ==================== UPLOAD SECTION ==================== */
.upload-drop-zone {
  border: 3px dashed var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.upload-drop-zone::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--primary-gradient);
  border-radius: var(--border-radius-lg);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 0;
}

.upload-drop-zone:hover::before,
.upload-drop-zone.drag-over::before {
  opacity: 0.1;
}

.upload-drop-zone:hover {
  border-color: var(--primary-color);
  background: var(--primary-light);
  transform: translateY(-2px);
}

.upload-drop-zone.drag-over {
  border-color: var(--primary-color);
  background: var(--primary-light);
  border-style: solid;
}

.upload-visual {
  position: relative;
  z-index: 1;
}

.upload-icon-circle {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.upload-icon-circle svg {
  color: white;
}

.upload-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.5rem 0;
  color: var(--text-primary);
}

.upload-hint {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0 0 0.75rem 0;
}

.upload-specs {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

/* Image Preview */
.image-preview-wrapper {
  text-align: center;
}

.uploaded-image-preview {
  max-width: 100%;
  max-height: 500px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  margin-bottom: 1.5rem;
}

.change-image-btn {
  padding: 0.75rem 1.5rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.change-image-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ==================== CANVAS SECTION ==================== */
.canvas-workspace {
  margin-top: 1.5rem;
}

.canvas-toolbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  border: 1px solid var(--border-color);
}

.tool-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tool-btn {
  padding: 0.625rem 1rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-base);
}

.tool-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.tool-btn.active {
  background: var(--primary-gradient);
  color: white;
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
}

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

.brush-size-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brush-size-value {
  font-weight: 700;
  color: var(--primary-color);
  min-width: 35px;
  text-align: right;
}

.brush-size-slider {
  width: 120px;
  height: 6px;
  border-radius: 3px;
  background: var(--bg-tertiary);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.brush-size-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-gradient);
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.brush-size-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: var(--shadow-lg);
}

.brush-size-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-gradient);
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.brush-size-slider::-moz-range-thumb:hover {
  transform: scale(1.2);
  box-shadow: var(--shadow-lg);
}

.canvas-container {
  border-radius: var(--border-radius);
  overflow: hidden;
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

.placement-canvas {
  max-width: 100%;
  max-height: 600px;
  display: block;
}

/* ==================== FURNITURE SECTION ==================== */
.furniture-section {
  margin-bottom: 0;
}

.furniture-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--border-color);
}

.furniture-tab {
  padding: 0.875rem 1.5rem;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-bottom: 3px solid transparent;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  margin-bottom: -2px;
}

.furniture-tab::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.furniture-tab:hover {
  color: var(--primary-color);
  background: var(--primary-light);
}

.furniture-tab.active {
  color: var(--primary-color);
}

.furniture-tab.active::after {
  transform: scaleX(1);
}

/* Tab Content */
.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease-in-out;
}

/* Furniture Filters */
.furniture-filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.search-box {
  flex: 1;
  min-width: 250px;
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 3rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 0.9375rem;
  transition: all var(--transition-base);
  background: var(--bg-secondary);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--bg-primary);
  box-shadow: 0 0 0 4px var(--primary-light);
}

.filter-select {
  padding: 0.875rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-base);
  font-weight: 500;
}

.filter-select:hover {
  border-color: var(--primary-color);
  background: var(--primary-light);
}

.filter-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px var(--primary-light);
}

/* Products Grid - LARGER IMAGES */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.product-item {
  background: var(--bg-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
}

.product-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

.product-item.selected {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px var(--primary-light), var(--shadow-lg);
}

.product-image-container {
  position: relative;
  overflow: hidden;
  background: var(--bg-tertiary);
  aspect-ratio: 1 / 1;
}

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

.product-item:hover .product-image-container img {
  transform: scale(1.08);
}

/* PRICE TAG IN CORNER */
.product-price-tag {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(10px);
  color: white;
  padding: 0.5rem 0.875rem;
  border-radius: var(--border-radius-sm);
  font-size: 1.125rem;
  font-weight: 700;
  box-shadow: var(--shadow-lg);
  z-index: 10;
}

.product-price-tag::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--primary-gradient);
  opacity: 0;
  transition: opacity var(--transition-base);
  border-radius: var(--border-radius-sm);
  z-index: -1;
}

.product-item:hover .product-price-tag::before {
  opacity: 1;
}

.product-select-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--success-color);
  color: white;
  padding: 0.375rem 0.75rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.8125rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  box-shadow: var(--shadow-md);
}

.product-info {
  padding: 1.25rem;
}

.product-name {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 0 0 0.5rem 0;
  color: var(--text-primary);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-category {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: var(--border-radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.product-actions {
  padding: 0 1.25rem 1.25rem;
}

.select-product-btn {
  width: 100%;
  padding: 0.875rem;
  background: var(--primary-gradient);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.select-product-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.select-product-btn.selected {
  background: var(--success-color);
}

.select-product-btn.selected:hover {
  background: var(--error-color);
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
}

.pagination-btn {
  padding: 0.75rem 1.25rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.pagination-btn:hover:not(:disabled) {
  background: var(--primary-light);
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}

.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pagination-info {
  display: flex;
  align-items: center;
  padding: 0 1rem;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Custom Furniture Upload */
.custom-furniture-upload {
  text-align: center;
}

.upload-drop-zone.small {
  padding: 2rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.upload-drop-zone.small svg {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.upload-drop-zone.small p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.custom-furniture-preview {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

/* Loading State */
.products-loading {
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
  font-size: 1.125rem;
}

/* WooCommerce Fallback Message */
.woocommerce-fallback {
  padding: 2rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  text-align: center;
  margin: 2rem 0;
}

/* Selected Furniture Display */
.selected-furniture-section {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  border: 2px solid var(--border-color);
}

.selected-furniture-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.selected-furniture-display {
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.selected-furniture-image {
  max-width: 280px;
  max-height: 280px;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
}

.no-furniture-selected {
  color: var(--text-secondary);
  font-style: italic;
  text-align: center;
}

.nestoryai-login-required {
  max-width: 480px;
  margin: 5rem auto;
  padding: 3rem 3rem 2.75rem;
  text-align: center;
  background: var(--bg-primary, #fffaf2);
  border-radius: 1.5rem;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 25px 55px rgba(15, 23, 42, 0.12);
}

.nestoryai-login-required__inner {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.nestoryai-login-required__title {
  margin: 0;
  font-size: 1.875rem;
  font-weight: 600;
  color: var(--text-primary, #2f1b12);
}

.nestoryai-login-required__message {
  margin: 0;
  font-size: 1.0625rem;
  color: var(--text-secondary, #7a5c43);
  line-height: 1.6;
}

.nestoryai-login-required__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.nestoryai-login-required__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.nestoryai-login-required__btn--primary {
  background: var(--primary-gradient, linear-gradient(135deg, #a56239, #683220));
  color: #ffffff;
  box-shadow: 0 14px 30px rgba(165, 98, 57, 0.35);
}

.nestoryai-login-required__btn--primary:hover {
  background: linear-gradient(135deg, var(--primary-dark, #683220), var(--secondary-color, #ac9b7e));
  box-shadow: 0 18px 36px rgba(104, 50, 32, 0.45);
}

.nestoryai-login-required__btn--link {
  color: var(--primary-color, #a56239);
}

.nestoryai-login-required__btn--link:hover {
  color: var(--primary-dark, #683220);
}

.nestoryai-success-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.nestoryai-success-modal.is-visible {
  display: flex;
}

.nestoryai-success-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
}

.nestoryai-success-modal__dialog {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  padding: 2.5rem 2.75rem;
  background: var(--bg-primary, #fffaf2);
  border-radius: 1.5rem;
  box-shadow: 0 28px 60px rgba(15, 23, 42, 0.18);
  text-align: center;
}

.nestoryai-success-modal__title {
  margin: 0 0 0.75rem;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text-primary, #2f1b12);
}

.nestoryai-success-modal__message {
  margin: 0 0 0.75rem;
  color: var(--text-secondary, #7a5c43);
  line-height: 1.6;
}

.nestoryai-success-modal__task {
  margin: 0;
  font-weight: 600;
  color: var(--primary-dark, #683220);
}

.nestoryai-success-modal__task-id {
  margin-left: 0.35rem;
}

.nestoryai-success-modal__actions {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.nestoryai-success-modal__button {
  width: 100%;
  padding: 0.9rem 1.2rem;
  border-radius: 999px;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.nestoryai-success-modal__button--primary {
  background: var(--primary-gradient, linear-gradient(135deg, #a56239, #683220));
  color: #ffffff;
  box-shadow: 0 16px 32px rgba(165, 98, 57, 0.35);
}

.nestoryai-success-modal__button--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 40px rgba(104, 50, 32, 0.45);
}

.nestoryai-success-modal__button--link {
  background: transparent;
  color: var(--primary-color, #a56239);
}

.nestoryai-success-modal__button--link:hover {
  color: var(--primary-dark, #683220);
}

body.nestoryai-modal-open {
  overflow: hidden;
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 1024px) {
  .nestoryai-sidebar {
    width: 240px;
  }

  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.25rem;
  }
}

@media (max-width: 768px) {
  .nestoryai-modern-container {
    flex-direction: column;
  }

  .nestoryai-sidebar {
    width: 100%;
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .sidebar-header {
    padding: 1.5rem 1rem 1rem;
  }

  .sidebar-title {
    font-size: 1.25rem;
  }

  .vertical-steps {
    flex-direction: row;
    overflow-x: auto;
    padding: 0.5rem;
    gap: 0.5rem;
  }

  .vertical-step {
    flex-direction: column;
    min-width: 100px;
    padding: 0.875rem;
    text-align: center;
  }

  .step-indicator-wrapper {
    flex-direction: column;
    margin-right: 0;
    margin-bottom: 0.5rem;
  }

  .step-info .step-title {
    font-size: 0.8125rem;
  }

  .step-info .step-desc {
    font-size: 0.75rem;
  }

  .sidebar-footer {
    padding: 1rem;
  }

  .nestoryai-main-content {
    padding: 1.25rem;
  }

  .design-section {
    padding: 1.5rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .furniture-filters {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    min-width: 100%;
  }

  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
  }

  .canvas-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.875rem;
  }

  .tool-group {
    justify-content: space-between;
  }

  .nestoryai-login-required {
    margin: 3.5rem 1.5rem;
    padding: 2.5rem 2rem;
  }

  .nestoryai-success-modal {
    padding: 1.5rem;
  }

  .nestoryai-success-modal__dialog {
    padding: 2rem;
  }
}

@media (max-width: 480px) {
  .products-grid {
    grid-template-columns: 1fr 1fr;
  }

  .product-price-tag {
    font-size: 0.9375rem;
    padding: 0.375rem 0.625rem;
  }

  .upload-icon-circle {
    width: 60px;
    height: 60px;
  }

  .upload-icon-circle svg {
    width: 32px;
    height: 32px;
  }

  .nestoryai-login-required {
    margin: 2.75rem 1rem;
    padding: 2.25rem 1.75rem;
  }

  .nestoryai-success-modal__dialog {
    padding: 1.75rem;
  }

  .nestoryai-success-modal__actions {
    gap: 0.6rem;
  }
}