styles.css

/* ChartSpec Styles - Mobile-first, responsive design */

/* ===== Reset & Base Styles ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #333;
  background-color: #f5f5f5;
}

/* ===== Container ===== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0;
}

/* ===== Header ===== */
.app-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1.5rem 1rem;
  text-align: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.app-header h1 {
  font-size: 2rem;
  margin-bottom: 0.25rem;
}

.app-header .subtitle {
  font-size: 1rem;
  opacity: 0.9;
}

/* ===== Main Content Layout ===== */
.main-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem;
}

/* Mobile-first: Stack sections vertically */
.sidebar, .main-area {
  width: 100%;
}

/* Desktop: Two-column layout (>= 768px) */
@media (min-width: 768px) {
  .main-content {
    flex-direction: row;
    align-items: flex-start;
  }
  
  .sidebar {
    width: 350px;
    flex-shrink: 0;
  }
  
  .main-area {
    flex: 1;
    min-width: 0;
  }
}

/* ===== Panel Styles ===== */
.panel {
  background: white;
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.panel h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: #667eea;
  border-bottom: 2px solid #667eea;
  padding-bottom: 0.5rem;
}

.panel h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: #555;
}

/* ===== Form Elements ===== */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 500;
  color: #555;
}

.form-control {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
}

.form-control:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

select.form-control {
  cursor: pointer;
}

textarea.form-control {
  resize: vertical;
  min-height: 60px;
}

/* ===== Buttons ===== */
.button-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

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

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background-color: #667eea;
  color: white;
}

.btn-primary:hover {
  background-color: #5568d3;
}

.btn-secondary {
  background-color: #6c757d;
  color: white;
}

.btn-secondary:hover {
  background-color: #5a6268;
}

.btn-danger {
  background-color: #dc3545;
  color: white;
}

.btn-danger:hover {
  background-color: #c82333;
}

/* ===== Notes and Messages ===== */
.note {
  font-size: 0.85rem;
  color: #666;
  margin-top: 0.25rem;
  line-height: 1.4;
}

.placeholder {
  color: #999;
  font-style: italic;
  text-align: center;
  padding: 2rem 1rem;
}

.no-data {
  color: #999;
  text-align: center;
  padding: 2rem;
  font-style: italic;
}

/* ===== Add Dataset Form ===== */
.add-dataset-form {
  background: #f8f9fa;
  padding: 1rem;
  border-radius: 4px;
  margin-top: 1rem;
  border: 1px solid #ddd;
}

/* ===== Dataset Info ===== */
.dataset-info {
  margin-top: 1rem;
}

.dataset-details p {
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.dataset-details strong {
  color: #555;
}

/* ===== Chat Section ===== */
.chat-section {
  display: flex;
  flex-direction: column;
  height: 400px;
}

.chat-log {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  background: #f8f9fa;
  border-radius: 4px;
  margin-bottom: 1rem;
  max-height: 300px;
}

.chat-message {
  margin-bottom: 1rem;
  padding: 0.75rem;
  border-radius: 4px;
}

.user-message {
  background: #e3f2fd;
  border-left: 4px solid #2196f3;
}

.assistant-message {
  background: #f3e5f5;
  border-left: 4px solid #9c27b0;
}

.role-label {
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.message-content {
  font-size: 0.95rem;
  word-wrap: break-word;
}

.message-content pre {
  background: #fff;
  padding: 0.75rem;
  border-radius: 4px;
  overflow-x: auto;
  font-size: 0.85rem;
  border: 1px solid #ddd;
}

.chat-input-area {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* ===== Visualization Section ===== */
.visualization-section {
  min-height: 400px;
}

.visualization-container {
  min-height: 350px;
  background: #f8f9fa;
  border-radius: 4px;
  padding: 1rem;
}

/* Facet Grid - uses repeat(auto-fit, minmax(260px, 1fr)) */
.facet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.facet-item {
  background: white;
  padding: 0.5rem;
  border-radius: 4px;
  border: 1px solid #ddd;
}

/* ===== Data Table Styles ===== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin-top: 1rem;
}

.data-table thead {
  background: #667eea;
  color: white;
}

.data-table th,
.data-table td {
  padding: 0.75rem;
  text-align: left;
  border: 1px solid #ddd;
}

.data-table tbody tr:nth-child(even) {
  background: #f8f9fa;
}

.data-table tbody tr:hover {
  background: #e9ecef;
}

/* ===== Footer ===== */
.app-footer {
  text-align: center;
  padding: 1.5rem 1rem;
  color: #666;
  font-size: 0.9rem;
  border-top: 1px solid #ddd;
  margin-top: 2rem;
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 767px) {
  .app-header h1 {
    font-size: 1.5rem;
  }
  
  .panel {
    padding: 1rem;
  }
  
  .chat-section {
    height: auto;
  }
  
  .chat-log {
    max-height: 250px;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 1rem;
  }
  
  .visualization-section {
    min-height: 500px;
  }
  
  .visualization-container {
    min-height: 450px;
  }
}

/* ===== Scrollbar Styling ===== */
.chat-log::-webkit-scrollbar {
  width: 8px;
}

.chat-log::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

.chat-log::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 4px;
}

.chat-log::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* ===== Local Mode Styles ===== */
.chartspec-textarea {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.85rem;
  line-height: 1.4;
  min-height: 300px;
}

.error-message {
  color: #dc3545;
  font-size: 0.85rem;
  margin-top: 0.5rem;
  padding: 0.5rem;
  background: #f8d7da;
  border: 1px solid #f5c6cb;
  border-radius: 4px;
}

.plotly-fallback-warning {
  background: #fff3cd;
  border: 1px solid #ffc107;
  color: #856404;
  padding: 12px;
  margin-bottom: 12px;
  border-radius: 4px;
  font-size: 14px;
}

/* ===== Token Indicator Styles ===== */
.token-indicator {
  background: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 4px;
  padding: 0.75rem;
  margin-top: 0.5rem;
}

.token-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.token-header strong {
  color: #555;
  font-size: 0.9rem;
}

.btn-link {
  background: none;
  border: none;
  color: #667eea;
  cursor: pointer;
  font-size: 0.85rem;
  text-decoration: underline;
  padding: 0;
}

.btn-link:hover {
  color: #5568d3;
}

.token-summary {
  font-size: 0.9rem;
  color: #333;
}

.token-bar {
  width: 100%;
  height: 8px;
  background: #e9ecef;
  border-radius: 4px;
  margin-top: 0.5rem;
  overflow: hidden;
}

.token-bar-fill {
  height: 100%;
  background: #667eea;
  transition: width 0.3s ease, background-color 0.3s ease;
}

.token-bar-fill.warning {
  background: #ffc107;
}

.token-bar-fill.danger {
  background: #dc3545;
}

.token-warning {
  margin-top: 0.5rem;
  padding: 0.5rem;
  background: #fff3cd;
  border: 1px solid #ffc107;
  border-radius: 4px;
  font-size: 0.85rem;
  color: #856404;
}

.token-details {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid #dee2e6;
  font-size: 0.85rem;
}

.token-details ul {
  list-style: none;
  padding-left: 0;
  margin: 0.5rem 0 0 0;
}

.token-details li {
  padding: 0.25rem 0;
  color: #666;
}

.token-details span {
  font-weight: 600;
  color: #333;
}

/* ===== Renderer Message Styles ===== */
.renderer-message {
  padding: 1rem;
  border-radius: 4px;
  margin: 1rem 0;
}

.renderer-message.warning {
  background: #fff3cd;
  border: 1px solid #ffc107;
  color: #856404;
}

.renderer-message.info {
  background: #d1ecf1;
  border: 1px solid #bee5eb;
  color: #0c5460;
}

.renderer-message strong {
  display: block;
  margin-bottom: 0.5rem;
}

.renderer-message pre {
  background: rgba(0, 0, 0, 0.05);
  padding: 0.5rem;
  border-radius: 4px;
  overflow-x: auto;
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

/* ===== D3 SVG Styles ===== */
.visualization-container svg {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.visualization-container svg text {
  fill: #333;
}

.visualization-container svg .bar:hover {
  opacity: 0.8;
  cursor: pointer;
}

.visualization-container svg .dot:hover {
  opacity: 1;
  cursor: pointer;
  stroke: #333;
  stroke-width: 2;
}

/* ===== Print Styles ===== */
@media print {
  .sidebar,
  .chat-section,
  .app-footer {
    display: none;
  }
  
  .main-area {
    width: 100%;
  }
  
  .visualization-container {
    background: white;
  }
}

/* ===== Smart Mode Styles ===== */
.smart-mode-hints {
  margin-top: 0.5rem;
  padding: 0.75rem;
  background: #e7f3ff;
  border: 1px solid #667eea;
  border-radius: 4px;
}

.hint-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: #667eea;
  margin: 0 0 0.5rem 0;
}

.command-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.suggestion-chip {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: white;
  border: 1px solid #667eea;
  border-radius: 16px;
  font-size: 0.85rem;
  color: #667eea;
  cursor: pointer;
  transition: all 0.2s ease;
}

.suggestion-chip:hover {
  background: #667eea;
  color: white;
}

.help-link {
  color: #667eea;
  text-decoration: underline;
  cursor: pointer;
  font-weight: 600;
}

.help-link:hover {
  color: #5568d3;
}

/* ===== Modal Styles ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-content {
  background: white;
  border-radius: 8px;
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 2px solid #667eea;
}

.modal-header h2 {
  margin: 0;
  color: #667eea;
  font-size: 1.5rem;
}

.modal-close {
  background: none;
  border: none;
  font-size: 2rem;
  color: #999;
  cursor: pointer;
  line-height: 1;
  padding: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: #333;
}

.modal-body {
  padding: 1.5rem;
}

.vocab-section {
  margin-bottom: 1.5rem;
}

.vocab-section h3 {
  color: #667eea;
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid #e9ecef;
  padding-bottom: 0.5rem;
}

.vocab-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.vocab-section li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #f8f9fa;
  font-size: 0.9rem;
}

.vocab-section li:last-child {
  border-bottom: none;
}

.vocab-section code {
  background: #f8f9fa;
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  font-family: 'Courier New', monospace;
  color: #667eea;
  font-weight: 600;
}

/* ===== AVA Recommendation Badge ===== */
.ava-badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: 0.5rem;
}

.recommendation-info {
  margin-top: 0.5rem;
  padding: 0.75rem;
  background: #f8f9fa;
  border-left: 3px solid #667eea;
  border-radius: 4px;
  font-size: 0.85rem;
}

.recommendation-info strong {
  color: #667eea;
}

/* ===== Mobile Responsiveness for Modal ===== */
@media (max-width: 768px) {
  .modal {
    padding: 0.5rem;
  }
  
  .modal-content {
    max-height: 95vh;
  }
  
  .modal-header {
    padding: 1rem;
  }
  
  .modal-header h2 {
    font-size: 1.25rem;
  }
  
  .modal-body {
    padding: 1rem;
  }
}