/* Research Data Graph page */

.data-container {
    max-width: 1400px;
}

.data-layout {
    display: grid;
    grid-template-columns: 320px 1fr 340px;
    gap: 1rem;
    margin: 1.5rem 0 3rem;
    min-height: 640px;
}

@media (max-width: 1100px) {
    .data-layout {
        grid-template-columns: 1fr;
    }
}

.data-sidebar,
.data-graph-pane,
.data-details {
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.data-search-label {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.data-search-label-text {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary, #475569);
}

#data-search {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--card-bg, #fff);
    color: var(--text-primary, #0f172a);
    box-sizing: border-box;
}

#data-search:focus {
    outline: 2px solid var(--accent, #0ea5e9);
    outline-offset: 1px;
}

.data-search-meta {
    margin: 0.5rem 0 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary, #64748b);
}

.data-results {
    list-style: none;
    padding: 0;
    margin: 0;
    overflow-y: auto;
    flex: 1 1 auto;
    min-height: 200px;
    max-height: 520px;
}

.data-result {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    padding: 0.55rem 0.7rem;
    border-radius: 8px;
    cursor: pointer;
    border: 1px solid transparent;
    margin-bottom: 0.25rem;
}

.data-result:hover,
.data-result.selected {
    background: var(--badge-bg, #f1f5f9);
    border-color: var(--border-color, #e2e8f0);
}

.data-result-title {
    font-weight: 600;
    color: var(--text-primary, #0f172a);
    font-size: 0.95rem;
    line-height: 1.3;
}

.data-result-meta {
    font-size: 0.78rem;
    color: var(--text-secondary, #64748b);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.data-legend {
    margin-top: 0.75rem;
    border-top: 1px solid var(--border-color, #e2e8f0);
    padding-top: 0.75rem;
    font-size: 0.85rem;
}

.data-legend summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--text-secondary, #475569);
}

.data-legend-list {
    list-style: none;
    padding: 0.5rem 0 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 0.8rem;
}

.data-legend-list li {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-secondary, #475569);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.dot-paper    { background: #0ea5e9; }
.dot-page     { background: #10b981; }
.dot-author   { background: #6366f1; }
.dot-topic    { background: #f59e0b; }
.dot-finding  { background: #ec4899; }
.dot-method   { background: #14b8a6; }
.dot-country  { background: #8b5cf6; }
.dot-dataset  { background: #f97316; }
.dot-related  { background: #94a3b8; }

.data-graph-pane {
    padding: 0;
    overflow: hidden;
}

.data-graph-toolbar {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid var(--border-color, #e2e8f0);
    background: var(--badge-bg, #f8fafc);
    border-radius: 12px 12px 0 0;
}

.data-graph-title {
    flex: 1 1 auto;
    font-weight: 600;
    color: var(--text-primary, #0f172a);
    font-size: 0.95rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.data-btn {
    padding: 0.35rem 0.7rem;
    border: 1px solid var(--accent, #0ea5e9);
    background: var(--accent, #0ea5e9);
    color: #fff;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: filter 0.15s ease;
}

.data-btn:hover:not(:disabled) {
    filter: brightness(1.1);
}

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

.data-btn-secondary {
    background: transparent;
    color: var(--accent, #0ea5e9);
}

.data-graph-canvas {
    flex: 1 1 auto;
    position: relative;
    min-height: 480px;
    background: var(--card-bg, #fff);
}

.data-graph-canvas canvas {
    display: block;
}

.data-graph-empty {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary, #64748b);
    font-size: 0.95rem;
    margin: 0;
}

.data-details {
    overflow-y: auto;
    max-height: 720px;
}

.data-details-empty {
    color: var(--text-secondary, #64748b);
    font-style: italic;
}

.data-details h2 {
    margin: 0 0 0.25rem;
    font-size: 1.15rem;
    color: var(--text-primary, #0f172a);
}

.data-details .data-details-type {
    display: inline-block;
    background: var(--badge-bg, #f1f5f9);
    color: var(--text-secondary, #475569);
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.6rem;
}

.data-details dl {
    margin: 0.5rem 0;
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 0.25rem 0.6rem;
    font-size: 0.88rem;
}

.data-details dt {
    color: var(--text-secondary, #64748b);
    font-weight: 600;
}

.data-details dd {
    margin: 0;
    color: var(--text-primary, #1e293b);
    word-break: break-word;
}

.data-details a {
    color: var(--accent, #0ea5e9);
    text-decoration: none;
}

.data-details a:hover {
    text-decoration: underline;
}

.data-details-summary {
    margin: 0.75rem 0 0;
    font-size: 0.9rem;
    line-height: 1.55;
    color: var(--text-primary, #1e293b);
    white-space: pre-wrap;
}

.data-details-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-top: 0.75rem;
}

.data-details-tag {
    background: var(--badge-bg, #f1f5f9);
    color: var(--text-secondary, #475569);
    padding: 0.12rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
}

.data-details-section {
    margin-top: 0.85rem;
    border-top: 1px solid var(--border-color, #e2e8f0);
    padding-top: 0.75rem;
}

.data-details-section h3 {
    margin: 0 0 0.4rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-secondary, #64748b);
}

.data-details-neighbours {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.data-details-neighbour {
    cursor: pointer;
    padding: 0.3rem 0.5rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.88rem;
}

.data-details-neighbour:hover {
    background: var(--badge-bg, #f1f5f9);
}

/* Dark mode */
.dark-mode .data-sidebar,
.dark-mode .data-graph-pane,
.dark-mode .data-details {
    background: #1e293b;
    border-color: #334155;
}

.dark-mode #data-search {
    background: #0f172a;
    color: #e2e8f0;
    border-color: #334155;
}

.dark-mode .data-graph-toolbar {
    background: #0f172a;
    border-bottom-color: #334155;
}

.dark-mode .data-graph-title,
.dark-mode .data-details h2 {
    color: #f1f5f9;
}

.dark-mode .data-result-title,
.dark-mode .data-details dd,
.dark-mode .data-details-summary {
    color: #e2e8f0;
}

.dark-mode .data-result:hover,
.dark-mode .data-result.selected,
.dark-mode .data-details-neighbour:hover {
    background: #0f172a;
    border-color: #334155;
}

.dark-mode .data-details-tag,
.dark-mode .data-details-type {
    background: #0f172a;
    color: #cbd5e1;
}