:root {
    --primary-color: #000000;
    --secondary-color: #333333;
    --background-color: #FFFFFF;
    --surface-color: #FFFFFF;
    --text-color: #333333;
    --text-secondary: #666666;
    --gray-light: #F5F5F5;
    --gray-medium: #E0E0E0;
    --border-color: #DDDDDD;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --hover-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

/* Navigation */
.main-nav {
    background: var(--surface-color);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links a {
    margin-left: 2rem;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
}

.submit-btn {
    background: var(--primary-color);
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

/* New Homepage Layout */
.top-nav-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
}

.logo-link {
    text-decoration: none;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

.submit-btn-hero {
    background: var(--primary-color);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.submit-btn-hero:hover {
    background: #333333;
}

.homepage-intro-section {
    padding: 1rem 2rem 0.5rem;
    background-color: var(--background-color);
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}

.intro-text {
    max-width: 900px;
    margin: 0 auto;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    text-align: left;
    margin-bottom: 1rem;
}

.main-interactive-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    padding: 0;
    align-items: stretch; /* Equal heights */
    max-width: 1200px;
    margin: 0 auto;
    height: 300px; /* Reduced height */
}

.left-column-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2rem;
    background: var(--background-color);
    height: 100%;
}

.search-and-actions-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.search-and-actions-container .ai-search-bar {
    box-shadow: var(--shadow);
}

.explore-section-promo .explore-resources-btn {
    background: var(--secondary-color);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    display: inline-block;
    text-align: center;
    width: 100%;
}

.explore-section-promo .explore-resources-btn:hover {
    background: #333333;
    transform: translateY(-2px);
    box-shadow: var(--hover-shadow);
}

#network-graph-section {
    margin: 0;
    padding: 0;
    height: 300px; /* Match the reduced grid height */
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--background-color);
    position: relative;
    overflow: hidden; /* Prevent any overflow issues */
}

#network-graph-section .network-container {
    height: 100%;
    width: 100%;
    border: none;
    border-radius: 0;
    background: var(--background-color);
    position: relative;
    contain: layout; /* Prevent layout shifts */
}

/* Ensure Vis.js canvas doesn't affect layout */
#network-graph-container canvas {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
}

/* Interaction hint animation */
.network-interaction-hint {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    pointer-events: none;
    z-index: 10;
    animation: pulseHint 2s ease-in-out infinite;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.network-interaction-hint::before {
    content: '👆';
    font-size: 1.2rem;
    animation: bounceIcon 1s ease-in-out infinite;
}

@keyframes pulseHint {
    0%, 100% {
        opacity: 0.8;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
}

@keyframes bounceIcon {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-3px);
    }
}

/* Network graph subtle glow effect */
#network-graph-section::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    animation: glowPulse 3s ease-in-out infinite;
    transform: translate(-50%, -50%);
}

@keyframes glowPulse {
    0%, 100% {
        opacity: 0.3;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1.2);
    }
}

/* Responsive adjustments for new layout */
@media (max-width: 1024px) {
    .main-interactive-section {
        grid-template-columns: 1fr;
        height: auto; /* Allow natural height on mobile */
    }
    
    .left-column-container {
        padding: 1.5rem;
    }
    
    #network-graph-section {
        height: 250px; /* Reduced height on mobile */
    }
}

@media (max-width: 768px) {
    .logo-text {
        font-size: 1.5rem;
    }
    .submit-btn-hero {
        padding: 0.5rem 1rem;
    }
    .intro-text {
        font-size: 1rem;
        text-align: center;
    }
    
    .network-interaction-hint {
        bottom: 10px;
        right: 10px;
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }
    
    #network-graph-section::after {
        width: 150px;
        height: 150px;
    }
}

/* Category Grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.category-card {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    position: relative;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.category-card:hover {
    transform: none;
}

/* Data Browser */
.data-browser {
    max-width: 1200px;
    margin: 1rem auto;
    padding: 1rem 2rem;
}

.filter-section {
    margin-bottom: 1rem;
}

.tag-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.tag-btn {
    background: var(--gray-medium);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-color);
}

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

/* Data Table - Compact styling */
.data-table {
    overflow-x: auto;
}

.data-table-container {
    overflow-x: auto;
}

.data-table-grid {
    width: 100%;
    border-collapse: collapse;
}

.data-table-grid th,
.data-table-grid td {
    padding: 0.6rem 0.8rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-color);
}

.data-table-grid th {
    background: var(--gray-light);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.data-table-grid tbody tr:hover {
    background-color: var(--gray-light);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 0.6rem 0.8rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
}

.action-btn {
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    margin-right: 0.5rem;
}

/* Footer */
footer {
    background: var(--surface-color);
    padding: 2rem 0;
    margin-top: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 0 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: var(--text-color);
    text-decoration: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .category-grid {
        grid-template-columns: 1fr;
    }
}

/* Country Cards */
.country-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.country-card {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.country-card:hover {
    transform: none;
    box-shadow: var(--hover-shadow);
}

.country-flag {
    font-size: 4rem;
    display: block;
    margin-bottom: 1rem;
}

.country-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.country-card p {
    color: var(--text-color);
    font-size: 0.9rem;
}

/* Filter section improvements */
.filter-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.filter-actions {
    display: flex;
    align-items: center;
}

.reset-btn {
    background: var(--gray-medium);
    color: var(--text-color);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.reset-btn:hover {
    background: var(--gray-light);
}

/* Collapsible sections */
.collapsible {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

.collapsible-header {
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    background: var(--background-color);
}

.toggle-icon {
    font-weight: bold;
    font-size: 1.2rem;
}

.collapsible-content {
    padding: 1rem;
}

/* Active filters display - Compact */
.active-filters {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.8rem;
    padding: 0.5rem 0.8rem;
    background: var(--background-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.filter-label {
    font-weight: 500;
    margin-right: 0.4rem;
    font-size: 0.85rem;
}

#active-filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.filter-tag {
    display: inline-flex;
    align-items: center;
    background: var(--gray-light);
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.filter-type {
    font-weight: 500;
    color: var(--primary-color);
    margin-right: 0.25rem;
}

.remove-filter {
    margin-left: 0.4rem;
    cursor: pointer;
    font-weight: bold;
    font-size: 0.9rem;
}

.remove-filter:hover {
    color: #FF6B6B;
}

/* Responsive improvements */
@media (max-width: 768px) {
    .filter-row {
        flex-direction: column;
    }
    
    .filter-actions {
        margin-top: 1rem;
    }
    
    .data-type-buttons, .tag-buttons {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
}

/* Browse Section Styles */
.browse-section {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 1rem 2rem;
    background-color: var(--background-color);
    border-radius: 0;
}

.browse-tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1rem;
}

.browse-tab {
    padding: 1rem 2rem;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

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

.browse-tab.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
}

.tab-content {
    display: none;
}

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

.category-selection {
    margin-bottom: 2rem;
}

.selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.selection-item {
    background: var(--background-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

/* Checkbox styling */
.checkbox-container {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 35px;
    cursor: pointer;
    font-size: 1rem;
    user-select: none;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 20px;
    width: 20px;
    background-color: var(--gray-medium);
    border-radius: 4px;
}

.checkbox-container:hover input ~ .checkmark {
    background-color: var(--gray-light);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--primary-color);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-container .checkmark:after {
    left: 7px;
    top: 3px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Selected Categories */
.selected-categories {
    background: var(--background-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-top: 1rem;
    border: 1px solid var(--border-color);
}

.selected-group {
    margin-bottom: 1rem;
}

.selected-group h4 {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

.selected-group .count {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-left: 0.5rem;
}

.selected-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.selected-tag {
    background: var(--gray-medium);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    color: var(--text-color);
}

.remove-tag {
    margin-left: 0.5rem;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.2rem;
    line-height: 1;
}

.remove-tag:hover {
    color: #FF6B6B;
}

.explore-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 1rem;
    width: 100%;
}

.explore-btn:hover {
    background: #333333;
}

.explore-btn:disabled {
    background: var(--gray-medium);
    cursor: not-allowed;
}

/* Resource Hierarchy Visualization */
.resource-hierarchy {
    max-width: 1200px;
    margin: 1rem auto;
    padding: 1rem 2rem;
}

.hierarchy-visualization {
    margin-top: 1rem;
    background: var(--background-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    min-height: 300px;
    border: 1px solid var(--border-color);
}

/* Results Section - Compact */
.results-section {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 1rem 2rem;
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.results-count {
    font-size: 1rem;
    margin-bottom: 0.8rem;
}

#results-count {
    font-weight: 600;
    color: var(--primary-color);
}

.clear-btn {
    background: none;
    border: none;
    color: #FF6B6B;
    cursor: pointer;
    font-weight: 500;
    margin-left: 1rem;
}

.clear-btn:hover {
    text-decoration: underline;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .browse-tabs {
        flex-direction: column;
        border-bottom: none;
    }
    
    .browse-tab {
        border-bottom: 1px solid var(--gray-medium);
    }
    
    .browse-tab.active::after {
        display: none;
    }
    
    .selection-grid {
        grid-template-columns: 1fr;
    }
}

/* Results Container with Sidebar - Compact */
.results-container {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.hierarchy-sidebar {
    flex: 0 0 240px;
    background: var(--background-color);
    padding: 0.8rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    max-height: 600px;
    overflow-y: auto;
}

.hierarchy-sidebar h3 {
    margin-bottom: 0.8rem;
    font-size: 0.95em;
    font-weight: 600;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.4rem;
}

.hierarchy-tree {
    padding-left: 0;
}

/* Base Node Styling - Compact */
.hierarchy-node, .hierarchy-deepnode, .hierarchy-leafnode {
    margin-bottom: 1px;
    list-style: none;
}

/* Header Styling (Clickable Area) - Compact */
.node-header, .deepnode-header, .leafnode-header {
    display: flex;
    align-items: center;
    padding: 4px 6px;
    border-radius: 3px;
    transition: background-color 0.2s ease;
    cursor: pointer;
    font-size: 0.85rem;
    line-height: 1.3;
}

.node-header:hover, .deepnode-header:hover, .leafnode-header:hover {
    background-color: var(--gray-light);
}

/* Toggle Icon Styling - Compact */
.node-toggle, .node-toggle-placeholder {
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-right: 4px;
    text-align: center;
    line-height: 14px;
    color: var(--text-secondary);
    font-size: 9px;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.node-toggle {
    cursor: pointer;
}

/* Rotate toggle icon when expanded */
.node-expanded > .node-header .node-toggle,
.node-expanded > .deepnode-header .node-toggle {
    transform: rotate(90deg);
}

/* Node Name and Count - Compact */
.node-name {
    flex-grow: 1;
    margin-right: 4px;
}

.count {
    font-size: 0.75em;
    color: var(--text-secondary);
    background-color: var(--gray-medium);
    padding: 1px 5px;
    border-radius: 8px;
    white-space: nowrap;
}

/* Children Container Styling - Compact */
.node-children {
    margin-left: 16px;
    padding-left: 8px;
    border-left: 1px dotted var(--border-color);
    display: none;
    overflow: hidden;
}

/* Show children when node is expanded */
.node-expanded > .node-children {
    display: block;
}

/* Selected Node Styling */
.hierarchy-node.selected > .node-header,
.hierarchy-deepnode.selected > .deepnode-header,
.hierarchy-leafnode.selected > .leafnode-header {
    background-color: rgba(0, 0, 0, 0.2);
    color: var(--primary-color);
    font-weight: 500;
}

.hierarchy-node.selected > .node-header .count,
.hierarchy-deepnode.selected > .deepnode-header .count,
.hierarchy-leafnode.selected > .leafnode-header .count {
    background-color: rgba(0, 0, 0, 0.3);
    color: var(--primary-color);
}

/* Level-Specific Styling (Optional: keep or remove if indentation is enough) */
.level-1-node > .node-header { font-weight: 600; font-size: 0.95rem; }
.level-2-node > .deepnode-header, .level-2-node > .leafnode-header { font-weight: 500; }
/* Add more level styles if needed */

.results-content {
    flex: 1;
    min-width: 0;
    padding-left: 0.5rem;
}

/* Improved Tree Container Styling */
.tree-container {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.3s ease;
    opacity: 0;
    border-top: 1px solid transparent;
    margin: 0;
}

.tree-container.expanded {
    max-height: 500px;
    overflow-y: auto;
    margin: 1rem 0;
    opacity: 1;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    background-color: rgba(45, 45, 45, 0.7);
    border-radius: 4px;
}

/* More visible expand button */
.expand-btn {
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.7rem 1.2rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: background 0.2s, transform 0.1s;
    width: 100%;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.expand-btn:hover {
    background: #333333;
    transform: translateY(-2px);
    box-shadow: var(--hover-shadow);
}

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

/* Better tree node styling */
.resource-tree {
    font-size: 0.95rem;
    padding: 0.5rem;
}

.tree-node {
    margin: 0.6rem 0;
}

.node-content {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 0.6rem;
    border-radius: 4px;
    transition: background 0.2s;
    background: var(--surface-color);
    box-shadow: var(--shadow);
}

.node-content:hover {
    background: var(--gray-light);
    box-shadow: var(--hover-shadow);
}

.node-toggle {
    width: 16px;
    height: 16px;
    margin-right: 8px;
    position: relative;
}

.node-toggle::before,
.node-toggle::after {
    content: '';
    position: absolute;
    background: var(--text-secondary);
    transition: transform 0.2s;
}

.node-toggle::before {
    width: 10px;
    height: 2px;
    top: 7px;
    left: 3px;
}

.node-toggle::after {
    width: 2px;
    height: 10px;
    top: 3px;
    left: 7px;
}

.node-expanded .node-toggle::after {
    transform: rotate(90deg);
}

.node-name {
    flex: 1;
}

.node-count {
    background: var(--gray-medium);
    color: var(--text-secondary);
    padding: 0.1rem 0.5rem;
    border-radius: 12px;
    font-size: 0.8rem;
}

.child-nodes {
    margin-left: 1.5rem;
    display: none;
    padding-left: 0.5rem;
    border-left: 1px dashed var(--border-color);
}

.node-expanded > .child-nodes {
    display: block;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .explorer-grid {
        grid-template-columns: 1fr;
    }
    
    .tree-container.expanded {
        max-height: 300px;
    }
}

/* Resource Type Sections - Compact styling */
.resource-type-section {
    background: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.resource-type-section h3 {
    padding: 0.8rem 1rem;
    background: var(--gray-medium);
    margin: 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
}

/* Rounded corners for tags and data */
.selected-tag, .filter-tag, .metadata-item, .data-tag {
    border-radius: 12px;
}

.data-row {
    border-radius: 4px;
}

/* Resource metadata styling */
.resource-metadata {
    display: flex;
    flex-wrap: wrap;
    gap: 0.2rem;
    margin-top: 0.3rem;
    font-size: 0.75rem;
}

.metadata-item {
    background-color: var(--gray-medium);
    color: var(--text-secondary);
    padding: 0.05rem 0.4rem;
    border-radius: 12px;
    display: inline-block;
}

/* Ensure the title cell has enough space for metadata */
.data-table-grid td:first-child {
    min-width: 250px;
}

/* Add these styles to your existing CSS file */

/* Removed redundant .network-container - using #network-graph-section .network-container instead */

.visualization-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 15px;
    padding: 10px;
    background-color: var(--background-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.filter-group, .layout-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-group select, .layout-group select {
    padding: 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: var(--surface-color);
    color: var(--text-color);
}

.reset-btn {
    padding: 8px 16px;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.reset-btn:hover {
    background-color: #333333;
}

.network-legend {
    margin-top: 20px;
    padding: 15px;
    background-color: var(--background-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.network-legend h3 {
    margin-top: 0;
    margin-bottom: 10px;
    color: var(--text-color);
}

.legend-item {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
    color: var(--text-color);
}

.legend-dot {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    margin-right: 10px;
}

.legend-dot.data-point {
    background-color: #4CAF50;
}

.legend-dot.country {
    background-color: #2196F3;
}

.legend-dot.domain {
    background-color: #FF9800;
}

.legend-dot.category {
    background-color: #9C27B0;
}

.legend-dot.subcategory {
    background-color: #E91E63;
}

.legend-dot.year {
    background-color: #607D8B;
}

/* Tooltip styles for the network */
.vis-tooltip {
    position: absolute;
    padding: 10px;
    background-color: rgba(45, 45, 45, 0.95);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-shadow: var(--shadow);
    font-size: 14px;
    max-width: 300px;
    z-index: 1000;
    color: var(--text-color);
}

/* Results Grid */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* Enhanced Resource Card Styling */
.resource-card {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: none;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.resource-card:hover {
    transform: none;
    box-shadow: var(--hover-shadow);
}

.resource-card h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.resource-category {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.resource-description {
    margin-bottom: 1rem;
    line-height: 1.5;
}

.resource-meta {
    display: flex;
    gap: 0.8rem;
    font-size: 0.85rem;
}

.resource-meta span {
    background: var(--gray-medium);
    padding: 0.3rem 0.6rem;
    border-radius: 12px;
    color: var(--text-color);
}

.country {
    background: rgba(0, 0, 0, 0.2) !important;
    color: var(--primary-color);
}

.domain {
    background: rgba(51, 51, 51, 0.2) !important;
    color: var(--secondary-color);
}

.resource-card .resource-link {
    font-weight: 500;
    color: var(--secondary-color);
    text-decoration: none;
    font-size: 0.9rem;
}

.resource-card .resource-link:hover {
    text-decoration: underline;
}

.view-details-btn {
    margin-top: 1rem;
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.4rem 0.8rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.view-details-btn:hover {
    background: #333333;
}

/* Results Section Improvements */
.results-section {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 1rem 2rem;
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

/* Data row highlight on hover */
.data-row {
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.data-row:hover {
    background-color: var(--gray-light);
}

/* Make the whole hierarchy tree more interactive */
.node-header, .subnode-header, .deepnode-header, .leafnode-header {
    padding: 10px 8px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
    cursor: pointer;
}

.node-header:hover, .subnode-header:hover, .deepnode-header:hover, .leafnode-header:hover {
    background-color: var(--gray-light);
}

.hierarchy-node.selected > .node-header,
.hierarchy-subnode.selected > .subnode-header,
.hierarchy-deepnode.selected > .deepnode-header,
.hierarchy-leafnode.selected > .leafnode-header {
    background-color: rgba(0, 0, 0, 0.2);
    color: var(--primary-color);
    font-weight: 600;
    box-shadow: var(--shadow);
}

/* Improved table sorting indicators */
.sortable {
    position: relative;
    cursor: pointer;
}

.sort-icon {
    position: absolute;
    right: 8px;
    opacity: 0.3;
    transition: opacity 0.2s ease;
}

.sortable:hover .sort-icon {
    opacity: 0.7;
}

.sortable.active .sort-icon {
    opacity: 1;
    color: var(--primary-color);
}

.resource-link {
    font-weight: 500;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
}

.resource-link:hover {
    text-decoration: underline;
}

/* Modal Styling Improvements */
#resource-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.7);
}

.modal-content {
    background-color: var(--background-color);
    margin: 5% auto;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    max-width: 900px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    border: 1px solid var(--border-color);
}

.close-modal {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    color: var(--text-secondary);
    cursor: pointer;
}

.close-modal:hover {
    color: var(--text-color);
}

#modal-title {
    font-size: 1.6rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-right: 30px;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.detail-section {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.detail-section h3 {
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
    color: var(--text-color);
}

.detail-row {
    display: flex;
    margin-bottom: 0.5rem;
}

.detail-label {
    flex: 0 0 30%;
    font-weight: 500;
    color: var(--text-secondary);
}

.detail-value {
    flex: 0 0 70%;
}

.detail-description {
    line-height: 1.6;
    margin-bottom: 1rem;
}

.detail-contact {
    font-style: italic;
    color: var(--text-secondary);
}

.detail-tags, .subcategory-tags, .keyword-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.detail-tag, .keyword-tag {
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.detail-tag.country {
    background-color: rgba(0, 0, 0, 0.2);
    color: var(--primary-color);
}

.detail-tag.domain {
    background-color: rgba(51, 51, 51, 0.2);
    color: var(--secondary-color);
}

.detail-tag.resource-type {
    background-color: rgba(0, 0, 0, 0.15);
    color: var(--primary-color);
}

.detail-tag.category {
    background-color: rgba(51, 51, 51, 0.15);
    color: var(--secondary-color);
}

.detail-tag.subcategory {
    background-color: rgba(0, 0, 0, 0.1);
    color: var(--primary-color);
}

.detail-tag.data-type {
    background-color: rgba(51, 51, 51, 0.1);
    color: var(--secondary-color);
}

.keyword-tag {
    background-color: var(--gray-medium);
    color: var(--text-secondary);
    font-weight: normal;
    font-size: 0.85rem;
}

.modal-actions {
    margin-top: 1.5rem;
    text-align: right;
}

.modal-link {
    display: inline-block;
    padding: 0.7rem 1.5rem;
    background-color: var(--secondary-color);
    color: white;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.2s;
}

.modal-link:hover {
    background-color: #333333;
    text-decoration: none;
}

/* Responsive modal */
@media (max-width: 768px) {
    .detail-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
        padding: 20px;
    }
    
    .detail-row {
        flex-direction: column;
    }
    
    .detail-label {
        margin-bottom: 0.3rem;
    }
}

/* Visual Explorer Section */
.visual-explorer {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
    background-color: var(--background-color);
}

.section-intro {
    text-align: center;
    max-width: 700px;
    margin: 1rem auto 1rem;
    color: var(--text-secondary);
    font-size: 1rem;
}

.explorer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.explorer-card {
    background: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    transition: none;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.explorer-card:hover {
    transform: none;
    box-shadow: var(--hover-shadow);
}

.explorer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.explorer-icon {
    font-size: 1.8rem;
    background: var(--gray-light);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.explorer-card h3 {
    font-size: 1.4rem;
    margin: 0;
    color: var(--primary-color);
}

.explorer-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    min-height: 40px;
}

.tree-container {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.3s ease;
    opacity: 0;
    border-top: 1px solid transparent;
    margin: 0;
}

.tree-container.expanded {
    max-height: 500px;
    overflow-y: auto;
    margin: 1rem 0;
    opacity: 1;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    background-color: rgba(45, 45, 45, 0.7);
    border-radius: 4px;
}

.expand-btn {
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.7rem 1.2rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: background 0.2s, transform 0.1s;
    width: 100%;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.expand-btn:hover {
    background: #333333;
    transform: translateY(-2px);
    box-shadow: var(--hover-shadow);
}

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

/* Tree View Styles */
.resource-tree {
    font-size: 0.95rem;
    padding: 0.5rem;
}

.tree-node {
    margin: 0.6rem 0;
}

.node-content {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 0.6rem;
    border-radius: 4px;
    transition: background 0.2s;
    background: var(--surface-color);
    box-shadow: var(--shadow);
}

.node-content:hover {
    background: var(--gray-light);
    box-shadow: var(--hover-shadow);
}

.node-toggle {
    width: 16px;
    height: 16px;
    margin-right: 8px;
    position: relative;
}

.node-toggle::before,
.node-toggle::after {
    content: '';
    position: absolute;
    background: var(--text-secondary);
    transition: transform 0.2s;
}

.node-toggle::before {
    width: 10px;
    height: 2px;
    top: 7px;
    left: 3px;
}

.node-toggle::after {
    width: 2px;
    height: 10px;
    top: 3px;
    left: 7px;
}

.node-expanded .node-toggle::after {
    transform: rotate(90deg);
}

.node-name {
    flex: 1;
}

.node-count {
    background: var(--gray-medium);
    color: var(--text-secondary);
    padding: 0.1rem 0.5rem;
    border-radius: 12px;
    font-size: 0.8rem;
}

.child-nodes {
    margin-left: 1.5rem;
    display: none;
    padding-left: 0.5rem;
    border-left: 1px dashed var(--border-color);
}

.node-expanded > .child-nodes {
    display: block;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .explorer-grid {
        grid-template-columns: 1fr;
    }
    
    .tree-container.expanded {
        max-height: 300px;
    }
}

/* Network wrapper with side legend - REMOVED, using main-interactive-section grid instead */

.network-container .loading-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1rem;
    color: #888;
}

/* Network Legend - Side Panel */
.network-legend {
    display: none; /* Hidden as requested */
    flex: 0 0 160px;
    padding: 1rem;
    background-color: #f8f8f8;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.network-legend h4 {
    margin: 0 0 0.8rem 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: #333;
}

.legend-section {
    margin-bottom: 1rem;
}

.legend-section:last-child {
    margin-bottom: 0;
}

.legend-section strong {
    display: block;
    font-size: 0.75rem;
    color: #666;
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.legend-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.35rem;
    font-size: 0.75rem;
    color: #555;
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 8px;
    display: inline-block;
    vertical-align: middle;
    flex-shrink: 0;
}

.legend-shape {
    width: 15px;
    height: 15px;
    margin-right: 10px;
    display: inline-block;
    vertical-align: middle;
    background-color: transparent;
    border-width: 2px;
    border-style: solid;
}

.legend-shape.hexagon {
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
    width: 17px;
    height: 15px;
}

.legend-shape.database {
    border-radius: 50% 50% 0 0 / 15% 15% 0 0;
    border-bottom: none;
    position: relative;
    height: 18px;
}
.legend-shape.database::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 4px;
    background-color: transparent;
    border: 2px solid;
    border-color: inherit;
    border-radius: 0 0 50% 50% / 0 0 15% 15%;
    border-top: none;
}
.legend-shape.database::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    border-left: 2px solid;
    border-right: 2px solid;
    border-color: inherit;
}

/* Network Graph Responsive */
@media (max-width: 768px) {
    .network-wrapper {
        flex-direction: column;
    }
    
    .network-container {
        height: 350px;
    }
    
    /* Legend remains hidden on mobile */
}

/* Ensure Vis Network Tooltip Style is present */
div.vis-tooltip {
    position: absolute;
    visibility: hidden;
    padding: 8px;
    white-space: nowrap;
    font-family: Inter, sans-serif;
    font-size: 13px;
    color: #333;
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid #ddd;
    border-radius: 6px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    z-index: 10;
    pointer-events: none;
}

/* Removed animated network canvas for static graph */
/* Animation removed for better performance and static display */

/* Loading Spinner for AI Processing */
.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border-left-color: var(--primary-color); /* Or var(--secondary-color) */
    animation: spin 1s ease infinite;
    /* margin: 0 auto; /* Centering if it's a block element */
    display: inline-block; /* If used next to text */
}

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

/* Remove 3D Graph Tooltip Style */
/* .graph-tooltip { ... } */

/* Network Legend */
/* ... (ensure legend styles are appropriate for 2D) ... */

/* ... (rest of styles) ... */

/* Simplified AI Search Bar */
.ai-search-bar-container {
    max-width: 900px;
    margin: 2rem auto;
    padding: 1rem 2rem;
}

.ai-search-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 0.5rem;
    border: 1px solid var(--border-color);
}

.ai-search-bar input {
    flex-grow: 1;
    border: none;
    outline: none;
    padding: 0.8rem;
    font-size: 1rem;
    background: transparent;
    color: var(--text-color);
}

.ai-search-bar button {
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.7rem 1.2rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
    white-space: nowrap;
}

.ai-search-bar button:hover {
    background: #333333;
    transform: translateY(-1px);
    box-shadow: var(--hover-shadow);
}

#expand-ai-chat-btn {
    background: var(--gray-medium);
    color: var(--text-color);
}

#expand-ai-chat-btn:hover {
    background: var(--gray-light);
    transform: translateY(-1px);
    box-shadow: var(--hover-shadow);
}

/* Two-column layout for main content */
.main-content-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 1200px) {
    .main-content-columns {
        grid-template-columns: 1fr;
    }
}


/* AI Chat Modal Styles */
.ai-chat-modal-content {
    background-color: var(--background-color);
    margin: 5% auto;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    max-width: 700px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    border: 1px solid var(--border-color);
}

.ai-chat-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.ai-chat-messages {
    flex-grow: 1;
    overflow-y: auto;
    max-height: 50vh;
}

/* AI Chat section for homepage */
.ai-explorer-page-container {
    max-width: 900px;
    margin: 1rem auto;
    padding: 1rem 2rem;
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}

.page-header {
    text-align: center;
    margin-bottom: 1rem;
}

.page-header h1 {
    color: var(--primary-color);
}

/* AI Chat Modal Styles */
#ai-chat-modal {
    display: none; /* Hidden by default */
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.5);
}

/* Styles for the AI chat interface elements, largely reusable */
.ai-chat-container {
    background-color: var(--background-color);
    /* margin: auto; */ /* Centering for modal */
    padding: 20px;
    border-radius: var(--border-radius);
    /* box-shadow: var(--shadow); */ /* Shadow for modal */
    /* width: 90%; */
    /* max-width: 700px; */
    /* max-height: 85vh; */
    display: flex;
    flex-direction: column;
    position: relative;
}

.ai-chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.ai-chat-header h3 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.4rem;
}

.close-ai-chat {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-secondary);
    cursor: pointer;
}

.close-ai-chat:hover {
    color: var(--text-color);
}

.ai-chat-messages {
    flex-grow: 1;
    overflow-y: auto;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--background-color);
    min-height: 200px;
}

.user-message, .ai-message {
    margin-bottom: 12px;
    padding: 10px 15px;
    border-radius: 18px;
    line-height: 1.5;
    max-width: 85%;
}

.user-message {
    background-color: var(--secondary-color);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: 5px;
}

.ai-message {
    background-color: var(--gray-medium);
    color: var(--text-color);
    margin-right: auto;
    border-bottom-left-radius: 5px;
}

.ai-message p, .user-message p {
    margin: 0;
}

.ai-message strong { /* For resource titles from AI */
    color: var(--primary-color);
}
.ai-message ul {
    padding-left: 20px;
    margin-top: 5px;
}
.ai-message li {
    margin-bottom: 3px;
}

.ai-chat-context-selection {
    margin-bottom: 15px;
    padding: 10px;
    background-color: var(--background-color);
    border-radius: 4px;
    border: 1px solid var(--border-color);
}
.ai-chat-context-selection label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-color);
}
/* Select2 specific styles for AI chat */
.ai-chat-context-selection .select2-container .select2-selection--multiple {
    border: 1px solid var(--border-color) !important;
    min-height: 38px;
    background-color: var(--background-color);
}
/* Ensure Select2 dropdown options are visible */
.select2-container--default .select2-results__option {
    color: var(--text-color); /* Ensure text is visible */
    background-color: var(--background-color); /* Ensure background is plain white */
}
.select2-container--default .select2-results__option--highlighted[aria-selected] {
    background-color: var(--primary-color); /* Highlight color */
    color: white;
}
.select2-dropdown {
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    background-color: var(--background-color); /* Ensure dropdown background is white */
    z-index: 2050; /* Ensure it's above other elements */
}


.ai-chat-input-area {
    display: flex;
    gap: 10px;
    align-items: stretch; /* Make textarea and button same height */
}

.ai-chat-input-area textarea {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    resize: none;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    min-height: 50px; /* Minimum height */
    max-height: 120px; /* Maximum height before scroll */
    overflow-y: auto; /* Add scroll if content exceeds max-height */
    background-color: var(--background-color);
    color: var(--text-color);
}

.ai-chat-input-area button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0 20px; /* Adjust padding */
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    flex-shrink: 0; /* Prevent button from shrinking */
}

.ai-chat-input-area button:hover {
    background: #333333;
}

.ai-chat-loading-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    font-style: italic;
    color: var(--text-secondary);
    gap: 8px;
}

/* Responsive AI Chat */
@media (max-width: 768px) {
    .ai-chat-container {
        width: 95%;
        max-height: 90vh;
        padding: 15px;
    }
    .ai-chat-header h3 {
        font-size: 1.2rem;
    }
    .ai-chat-messages {
        min-height: 150px;
    }
}