/* Base styles for modern clean UI design - Anyformat inspired */
:root {
  --primary-color: #0067df;
  --primary-light: #e6f0ff;
  --primary-dark: #004db3;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #3b82f6;
  --text-color: #333333;
  --text-secondary: #666666;
  --text-light: #8b949e;
  --border-color: #e0e4e8;
  --background-light: #ffffff;
  --background-grey: #f8f9fa;
  --background-light-hover: #f5f8fc;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --font-xs: 12px;
  --font-sm: 14px;
  --font-md: 16px;
  --font-lg: 18px;
  --font-xl: 20px;
  --font-xxl: 24px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
}

body { 
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--background-light);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  line-height: 1.5;
  font-size: var(--font-md);
}

/* Header and Navigation */
.header {
  background-color: var(--background-light);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.app-logo {
  display: flex;
  align-items: center;
  font-size: var(--font-xl);
  font-weight: 600;
  color: var(--text-color);
  text-decoration: none;
}

.app-logo i {
  color: var(--primary-color);
  font-size: 24px;
  margin-right: 10px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.huggingface-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: var(--font-sm);
  transition: var(--transition-fast);
}

.huggingface-link:hover {
  color: var(--primary-color);
}

.huggingface-link img {
  height: 20px;
  margin-right: 6px;
}

.info-banner {
  background: var(--background-grey);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-xs) var(--spacing-xl);
  font-size: var(--font-sm);
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.info-sources {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.source-label,
.limit-label {
  font-weight: 600;
  color: var(--text-color);
}

.info-divider {
  margin: 0 var(--spacing-sm);
  color: var(--border-color);
}

.powered-by {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.huggingface-badge {
  display: flex;
  align-items: center;
}

.huggingface-badge img {
  height: 16px;
}

/* Layout containers */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  padding: var(--spacing-lg) var(--spacing-xl);
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

/* Tab Navigation */
.tab-navigation {
  margin-bottom: var(--spacing-lg);
  overflow-x: auto;
}

.tab-bar {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
  border-bottom: 2px solid var(--border-color);
  width: 100%;
}

.tab {
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
}

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

.tab.active {
  color: var(--primary-color);
  border-bottom: 2px solid var(--primary-color);
  font-weight: 600;
}

.tab .badge {
  background-color: var(--primary-color);
  color: white;
  font-size: var(--font-xs);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  margin-left: var(--spacing-xs);
  font-weight: 600;
}

/* Content Cards */
.card, .container {
  background: var(--background-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  margin: 0 auto var(--spacing-lg) auto;
  transition: box-shadow 0.2s ease;
  max-width: 950px;
}

.card:hover, .container:hover {
  box-shadow: var(--shadow-md);
}

.section-heading {
  margin-bottom: var(--spacing-lg);
}

.section-heading h2 {
  font-size: var(--font-xl);
  font-weight: 600;
  margin: 0 0 var(--spacing-xs) 0;
}

.section-heading h3 {
  font-size: var(--font-lg);
  font-weight: 600;
  margin: 0 0 var(--spacing-xs) 0;
}

.section-description {
  color: var(--text-secondary);
  margin: var(--spacing-xs) 0 0 0;
}

/* Form Elements */
.form-row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -8px;
  max-width: 900px;
}

.form-group {
  margin-bottom: var(--spacing-md);
  padding: 0 8px;
  flex: 1;
}

.col-md-6 {
  width: 50%;
  flex: 0 0 50%;
}

.col-md-4 {
  width: 33.333333%;
  flex: 0 0 33.333333%;
}

@media (max-width: 768px) {
  .col-md-6, .col-md-4 {
    width: 100%;
    flex: 0 0 100%;
  }
}

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: var(--font-sm);
}

.input-field,
input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: var(--font-md);
  transition: var(--transition-fast);
  outline: none;
  box-sizing: border-box;
}

.input-field:focus,
input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 103, 223, 0.15);
}

.select-field,
select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: white;
  font-size: var(--font-md);
  transition: var(--transition-fast);
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M8 11L3 6H13L8 11Z' fill='%23666666'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  box-sizing: border-box;
}

.select-field:focus,
select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 103, 223, 0.15);
}

/* Buttons */
.btn-primary,
button[type="submit"] {
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-weight: 600;
  font-size: var(--font-md);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-primary:hover,
button[type="submit"]:hover {
  background-color: var(--primary-dark);
}

.btn-secondary {
  background-color: var(--background-grey);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-weight: 500;
  font-size: var(--font-md);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-secondary:hover {
  background-color: var(--border-color);
}

.btn-success {
  background-color: var(--success-color);
  color: white;
}

.btn-danger {
  background-color: var(--danger-color);
  color: white;
}

.btn-info {
  background-color: var(--info-color);
  color: white;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.btn-icon i {
  font-size: var(--font-md);
}

.form-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

/* Results and Visualization */
.results-section,
.results-container {
  margin-top: var(--spacing-lg);
}

.chart-container,
.chart-area,
.visualization-container {
  background-color: white;
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin: var(--spacing-md) auto;
  max-width: 850px;
}

.trade-flow-map {
  margin: var(--spacing-md) auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-width: 850px;
  background-color: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

/* Map container for Leaflet */
.leaflet-container {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  width: 100%;
  max-width: 850px !important;
  margin: 0 auto;
}

.chart-controls,
.chart-control-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.chart-type-btn {
  background-color: var(--background-grey);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-size: var(--font-sm);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.chart-type-btn:hover {
  background-color: var(--background-light-hover);
}

.chart-type-btn.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.chart-type-btn i {
  font-size: var(--font-md);
}

/* AI Assistant Styles */
.model-badge {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-sm);
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

.hf-logo {
  height: 18px;
}

.chat-container {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: 500px;
  background-color: var(--background-grey);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
}

.message {
  margin-bottom: var(--spacing-md);
  max-width: 85%;
}

.message-assistant {
  align-self: flex-start;
}

.message-user {
  align-self: flex-end;
  margin-left: auto;
}

.message-content {
  background-color: white;
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

.message-assistant .message-content {
  border-bottom-left-radius: 0;
}

.message-user .message-content {
  background-color: var(--primary-light);
  border-bottom-right-radius: 0;
}

.chat-input-container {
  display: flex;
  padding: var(--spacing-md);
  background-color: white;
  border-top: 1px solid var(--border-color);
  gap: var(--spacing-sm);
}

.chat-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-md);
  resize: none;
}

.quick-questions-container {
  margin-top: var(--spacing-lg);
}

.section-title {
  font-size: var(--font-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-color);
}

.quick-question-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.quick-question-chip {
  background-color: var(--background-light);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  padding: 8px 16px;
  font-size: var(--font-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.quick-question-chip:hover {
  background-color: var(--primary-light);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.assistant-tools {
  margin-top: var(--spacing-xl);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.tool-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.tool-header {
  background-color: var(--background-grey);
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  border-bottom: 1px solid var(--border-color);
}

.tool-header i {
  color: var(--primary-color);
  font-size: var(--font-lg);
}

.tool-header h4 {
  margin: 0;
  font-size: var(--font-md);
  font-weight: 600;
}

.tool-content {
  padding: var(--spacing-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.input-with-button {
  display: flex;
  gap: var(--spacing-sm);
}

.input-with-button input {
  flex: 1;
}

/* Cache Management */
.cache-control-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.panel-title {
  font-size: var(--font-lg);
  font-weight: 600;
  margin: 0;
}

.action-buttons {
  display: flex;
  gap: var(--spacing-sm);
}

.cached-data-container {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--background-light);
  min-height: 200px;
}

.loading-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  color: var(--text-secondary);
  gap: var(--spacing-md);
}

.loading-indicator i {
  font-size: var(--font-xl);
  color: var(--primary-color);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-color);
  margin-top: 0;
  font-weight: 600;
  line-height: 1.3;
}

h1 { font-size: 28px; margin-bottom: 24px; }
h2 { font-size: 24px; margin-bottom: 20px; }
h3 { font-size: 20px; margin-bottom: 16px; }

/* Page section headings */
.section-heading {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

/* Form elements */
form label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-color);
  font-weight: 500;
  font-size: 14px;
}

form input, form select, form textarea {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 15px;
  background-color: var(--background-light);
  color: var(--text-color);
  transition: all 0.2s ease;
}

form input:focus, form select:focus, form textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(0, 103, 223, 0.15);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background-color: #0055c4;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
  background-color: white;
  border-color: var(--border-color);
  color: var(--text-color);
}

.btn-secondary:hover {
  background-color: var(--background-grey);
  border-color: #ccd0d5;
}

/* Form buttons inherit btn styles */
form button {
  width: auto;
  padding: 10px 16px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  background-color: var(--primary-color);
  color: white;
  border: none;
}

form button:hover {
  background-color: #0055c4;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
/* Results and content sections */
.results-section {
  margin-top: 24px;
}

#results, 
#predictionResults, 
#exportsCountryResults, 
#importsCountryResults, 
#exportsProductResults, 
#importsProductResults, 
#rankingsResults, 
#bilateralResults, 
#dataDownloadStatus {
  margin-top: 16px;
  font-size: 15px;
}

/* Alerts and notifications */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-weight: 500;
  font-size: 14px;
  display: flex;
  align-items: center;
}

.alert-icon {
  margin-right: 12px;
  flex-shrink: 0;
}

.alert-danger {
  background-color: #FEEFEF;
  color: #B42318;
  border: 1px solid #FDE2E2;
}

.alert-success {
  background-color: #ECFDF3;
  color: #027A48;
  border: 1px solid #D1FADF;
}

.alert-info {
  background-color: #EFF8FF;
  color: #175CD3;
  border: 1px solid #D1E9FF;
}

.alert-warning {
  background-color: #FFFAEB;
  color: #B54708;
  border: 1px solid #FEF0C7;
}

/* Loading indicators */
.spinner {
  border: 3px solid rgba(0, 103, 223, 0.1);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  width: 24px;
  height: 24px;
  animation: spin 1s linear infinite;
  margin: 16px auto;
  display: block;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Tables */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: 24px;
  background: var(--background-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-size: 14px;
  border: 1px solid var(--border-color);
}

thead {
  background-color: var(--background-grey);
  color: var(--text-color);
  font-weight: 600;
}

th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

tr:last-child td {
  border-bottom: none;
}

tr:hover {
  background-color: var(--background-grey);
}
/* Header and Navigation */
.header {
  background-color: var(--background-light);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

.app-logo {
  display: flex;
  align-items: center;
  font-weight: 600;
  font-size: 18px;
  color: var(--text-color);
  text-decoration: none;
}

.app-logo img {
  height: 32px;
  margin-right: 8px;
}

/* Info banner */
.info-banner {
  background-color: var(--background-grey);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Tab Navigation */
.tab-navigation {
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.tab-bar {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 4px;
}

.tab {
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
  background: none;
  border-radius: 0;
}

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

.tab.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  font-weight: 600;
}

.tab-content {
  display: none;
  padding: 16px 0;
}

.tab-content.active {
  display: block;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 16px;
  margin-left: 6px;
  background-color: var(--primary-light);
  color: var(--primary-color);
}

/* Charts */
.chart-container {
  background-color: var(--background-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 16px;
  margin-bottom: 24px;
  width: 100%;
}

#tradeChart, 
#predictionChart, 
#exportsCountryChart, 
#importsCountryChart, 
#exportsProductChart, 
#importsProductChart, 
#rankingsChart, 
#bilateralChart {
  max-width: 100%;
  margin-top: 16px;
  background: var(--background-light);
  border-radius: var(--radius-sm);
}

/* Chart controls */
.chart-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.chart-type-btn {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--background-light);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.chart-type-btn:hover,
.chart-type-btn.active {
  background-color: var(--primary-light);
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.chart-type-btn i {
  margin-right: 6px;
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .container, .card { 
    width: calc(100% - 32px);
    padding: 16px;
    margin: 16px;
  }
  
  .tab-bar {
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
  }
  
  .tab-bar::-webkit-scrollbar {
    display: none; /* Chrome/Safari/Opera */
  }
  
  .tab {
    padding: 12px 10px;
    font-size: 13px;
  }
  
  table {
    font-size: 13px;
  }
  
  th, td {
    padding: 8px 12px;
  }
}
.alert-success { background: #e5ffe5; color: #27ae60; border: 1px solid #2ecc71; }
.spinner {
  border: 6px solid #f3f3f3;
  border-top: 6px solid #3498db;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 2em auto;
  display: block;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
/* Custom styles for specific components */
.trade-data-visualization {
  margin-top: 24px;
}

.ai-assistant-container {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--background-light);
  padding: 16px;
  margin-bottom: 24px;
}

.chat-message {
  padding: 12px 16px;
  margin-bottom: 12px;
  border-radius: var(--radius-md);
  max-width: 80%;
}

.chat-message-user {
  background-color: var(--primary-light);
  color: var(--text-color);
  margin-left: auto;
}

.chat-message-assistant {
  background-color: var(--background-grey);
  color: var(--text-color);
  margin-right: auto;
}