/* ═══════════════════════════════════════════
   Global Notes Workspace — UI Designer & AI Refiner
   App Theme Integration v5
   ═══════════════════════════════════════════ */

:root {
  --gn-bg-dark: #111113;
  --gn-card-bg: #1a1a1d;
  --gn-surface-2: #141416;
  --gn-surface-3: #232326;
  --gn-border-color: #27272b;
  --gn-border-light: #333338;
  --gn-accent-indigo: #f97316;
  --gn-accent-purple: #ea580c;
  --gn-accent-gradient: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
  --gn-text-main: #ececef;
  --gn-text-muted: #a0a0ab;
  --gn-hover-bg: #28282c;
}

body.ui-designer-page {
  margin: 0;
  padding: 0;
  background-color: var(--gn-bg-dark);
  color: var(--gn-text-main);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Header Navbar — Aligned with Global Notes Header (52px) */
.designer-header {
  height: 52px;
  min-height: 52px;
  background-color: var(--gn-surface-2);
  border-bottom: 1px solid var(--gn-border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  gap: 16px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
  z-index: 10;
}

.designer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--gn-text-main);
}

.designer-brand .logo-img {
  width: 26px;
  height: 26px;
}

.designer-brand h1 {
  font-size: 15px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.3px;
}

.designer-brand h1 span {
  color: var(--gn-accent-indigo);
}

/* URL Input Bar */
.url-input-container {
  flex: 1;
  max-width: 580px;
  display: flex;
  align-items: center;
  background-color: var(--gn-bg-dark);
  border: 1px solid var(--gn-border-color);
  border-radius: 8px;
  padding: 4px 6px 4px 12px;
  gap: 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.url-input-container:focus-within {
  border-color: var(--gn-accent-indigo);
  box-shadow: 0 0 0 3px rgba(139, 139, 245, 0.2);
}

.url-input-container input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--gn-text-main);
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
}

.url-input-container input::placeholder {
  color: var(--gn-text-muted);
}

/* Header Buttons */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-primary-gn {
  background: var(--gn-accent-gradient);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s;
}

.btn-primary-gn:hover {
  opacity: 0.92;
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.4);
}

.btn-secondary-gn {
  background: var(--gn-surface-3);
  color: var(--gn-text-main);
  border: 1px solid var(--gn-border-color);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 0.15s;
}

.btn-secondary-gn:hover {
  background: var(--gn-hover-bg);
}

/* Main Split Workspace */
.designer-workspace {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
  height: calc(100vh - 52px);
}

.preview-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--gn-surface-2);
  border-right: 1px solid var(--gn-border-color);
  position: relative;
  min-width: 0;
  min-height: 0;
  height: 100%;
}

.pane-toolbar {
  height: 36px;
  min-height: 36px;
  background: var(--gn-card-bg);
  border-bottom: 1px solid var(--gn-border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  font-size: 12px;
  color: var(--gn-text-muted);
}

.pane-toolbar .title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--gn-text-main);
}

.preview-iframe {
  flex: 1;
  width: 100%;
  height: calc(100% - 36px);
  min-height: 0;
  border: none;
  background-color: #ffffff;
  display: block;
}

/* Empty State Overlay — High Contrast Dark Theme */
.empty-state {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--gn-text-muted);
  max-width: 420px;
  z-index: 5;
  pointer-events: none;
}

.empty-state svg {
  width: 52px;
  height: 52px;
  stroke: var(--gn-accent-indigo);
  margin-bottom: 14px;
  filter: drop-shadow(0 0 12px rgba(139, 139, 245, 0.4));
}

.empty-state h3 {
  color: var(--gn-text-main);
  margin: 0 0 8px 0;
  font-size: 19px;
  font-weight: 700;
}

.empty-state p {
  color: var(--gn-text-muted);
  font-size: 13px;
  line-height: 1.6;
  margin: 0 0 16px 0;
}

/* Inspector & AI Side Pane */
.inspector-pane {
  width: 450px;
  min-width: 320px;
  max-width: 600px;
  display: flex;
  flex-direction: column;
  background-color: var(--gn-card-bg);
  border-left: 1px solid var(--gn-border-color);
  height: 100%;
  min-height: 0;
}

/* Targeted AI Prompt Section */
.ai-prompt-section {
  padding: 16px;
  background: var(--gn-bg-dark);
  border-bottom: 1px solid var(--gn-border-color);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.selected-element-badge {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(139, 139, 245, 0.1);
  border: 1px solid rgba(139, 139, 245, 0.3);
  border-radius: 6px;
  padding: 8px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: #c7d2fe;
}

.selected-element-badge .tag {
  font-weight: 700;
  color: var(--gn-accent-indigo);
}

.element-code-preview {
  max-height: 90px;
  overflow-y: auto;
  background: var(--gn-surface-2);
  border: 1px solid var(--gn-border-color);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--gn-text-muted);
  white-space: pre-wrap;
  word-break: break-all;
}

/* Preset Chips */
.preset-chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 4px;
}

.preset-chip {
  background: rgba(249, 115, 22, 0.12);
  color: var(--gn-accent-indigo);
  border: 1px solid rgba(249, 115, 22, 0.25);
  border-radius: 20px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.2s ease;
}

.preset-chip:hover {
  background: var(--gn-accent-indigo);
  color: #fff;
  border-color: var(--gn-accent-indigo);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.4);
}

.prompt-textarea {
  width: 100%;
  box-sizing: border-box;
  background: var(--gn-card-bg);
  border: 1px solid var(--gn-border-color);
  border-radius: 6px;
  padding: 10px;
  color: var(--gn-text-main);
  font-size: 13px;
  resize: vertical;
  min-height: 70px;
  outline: none;
  font-family: inherit;
}

.prompt-textarea:focus {
  border-color: var(--gn-accent-indigo);
  box-shadow: 0 0 0 2px rgba(139, 139, 245, 0.2);
}

/* Code View Section */
.code-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}

.code-container {
  flex: 1;
  overflow: auto;
  background-color: var(--gn-bg-dark);
  padding: 12px;
}

.code-editor-textarea {
  width: 100%;
  height: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: #e2e8f0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 1.5;
  resize: none;
  white-space: pre;
}

/* Loading Overlay */
.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(17, 17, 19, 0.85);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
  gap: 12px;
  color: var(--gn-text-main);
  font-weight: 500;
  font-size: 14px;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(139, 139, 245, 0.2);
  border-top-color: var(--gn-accent-indigo);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.inline-btn-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: 6px;
  vertical-align: middle;
}

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

/* Paste HTML Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal-backdrop.hidden {
  display: none;
}

.modal-box {
  background: var(--gn-card-bg);
  border: 1px solid var(--gn-border-color);
  border-radius: 10px;
  width: 600px;
  max-width: 90vw;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  font-size: 16px;
  margin: 0;
}

.modal-close-btn {
  background: none;
  border: none;
  color: var(--gn-text-muted);
  font-size: 20px;
  cursor: pointer;
}

.modal-body textarea {
  width: 100%;
  height: 200px;
  background: var(--gn-bg-dark);
  border: 1px solid var(--gn-border-color);
  border-radius: 6px;
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  padding: 10px;
  box-sizing: border-box;
  resize: vertical;
}