/* === Product Card Generator — Design System === */

:root {
  /* Colors */
  --bg-primary: #0f1117;
  --bg-secondary: #1a1d27;
  --bg-card: #21242f;
  --bg-input: #282c3a;
  --bg-hover: #2e3345;
  
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --accent-border: rgba(99, 102, 241, 0.3);
  
  --success: #22c55e;
  --success-bg: rgba(34, 197, 94, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --error: #ef4444;
  --error-bg: rgba(239, 68, 68, 0.1);
  
  --text-primary: #f1f3f9;
  --text-secondary: #9ca3b8;
  --text-muted: #6b7280;
  
  --border: #2e3345;
  --border-light: #3a3f52;
  
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  
  --transition: all 0.2s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* === Layout === */

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.app-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.app-logo-icon {
  font-size: 28px;
}

.app-logo h1 {
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.3px;
}

.app-logo-sub {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 0.5px;
}

.header-actions {
  display: flex;
  gap: 10px;
}

.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

/* === Tabs === */

.tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 4px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}

.tab-btn {
  flex: 1;
  padding: 12px 20px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

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

.tab-btn.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.3);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === Buttons === */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #4f46e5);
  color: #fff;
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
  transform: translateY(-1px);
}

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

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

.btn-danger {
  background: var(--error-bg);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.15);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
}

.btn-icon {
  padding: 8px 12px;
  font-size: 16px;
}

/* === Form Elements === */

.form-group {
  margin-bottom: 14px;
}

.form-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-label-icon {
  font-size: 14px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-input:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.form-textarea {
  min-height: 56px;
  resize: vertical;
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3b8' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.form-row {
  display: flex;
  gap: 14px;
  align-items: flex-end;
}

.form-row > * {
  flex: 1;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.checkbox-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

.checkbox-row label {
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
}

/* === Card === */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-light);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* === LLM Provider Selector === */

.provider-row {
  display: flex;
  gap: 14px;
  padding: 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
}

.provider-row > div {
  flex: 1;
}

/* === Progress Bar === */

.progress-container {
  margin-top: 20px;
  display: none;
}

.progress-container.visible {
  display: block;
  animation: fadeIn 0.3s ease;
}

.progress-bar-wrapper {
  background: var(--bg-secondary);
  border-radius: 20px;
  height: 8px;
  overflow: hidden;
  margin-bottom: 10px;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 20px;
  width: 0%;
  transition: width 0.5s ease;
}

.progress-text {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.progress-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === Result Panel === */

.result-panel {
  display: none;
  margin-top: 20px;
}

.result-panel.visible {
  display: block;
  animation: fadeIn 0.3s ease;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.result-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
}

.status-success { color: var(--success); }
.status-warning { color: var(--warning); }
.status-error { color: var(--error); }

.result-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.result-field {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-xs);
  font-size: 13px;
}

.result-field:nth-child(odd) {
  background: var(--bg-secondary);
}

.result-field-name {
  color: var(--text-secondary);
  font-weight: 600;
}

.result-field-value {
  color: var(--text-primary);
  word-break: break-word;
}

.result-field-value.html-preview {
  max-height: 100px;
  overflow-y: auto;
  font-family: monospace;
  font-size: 11px;
  color: var(--text-muted);
}

/* === Warnings/Errors List === */

.alert-list {
  margin-bottom: 16px;
}

.alert-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius-xs);
  font-size: 13px;
  margin-bottom: 4px;
}

.alert-warning {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.15);
}

.alert-error {
  background: var(--error-bg);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.15);
}

/* === Batch Items === */

.batch-item {
  position: relative;
}

.batch-item .card-header {
  cursor: pointer;
}

.batch-item-number {
  width: 28px;
  height: 28px;
  background: var(--accent-glow);
  border: 1px solid var(--accent-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-light);
}

.batch-add-btn {
  width: 100%;
  padding: 16px;
  background: var(--bg-secondary);
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.batch-add-btn:hover {
  border-color: var(--accent-border);
  color: var(--accent-light);
  background: var(--accent-glow);
}

/* === Modal === */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

.modal-overlay.visible {
  display: flex;
  animation: fadeIn 0.2s ease;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  width: 90%;
  max-width: 620px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-section {
  margin-bottom: 20px;
}

.modal-section-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* === Scrollbar === */

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* === Category Add Row === */

.category-add-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.category-add-row .form-input {
  flex: 1;
}

.category-inline-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.category-inline-row .form-select {
  flex: 2;
}

.category-inline-row .form-input {
  flex: 1;
  min-width: 0;
}

.category-inline-row .btn {
  flex-shrink: 0;
}

/* === Responsive === */

@media (max-width: 640px) {
  .form-row {
    flex-direction: column;
  }

  .provider-row {
    flex-direction: column;
  }

  .result-field {
    grid-template-columns: 1fr;
  }

  .app-header {
    padding: 12px 16px;
  }

  .main-content {
    padding: 16px 12px;
  }
}