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

:root {
    --color-domain: #0d9488;
    --color-lifecycle: #d97706;
    --color-datatype: #2563eb;
    --color-format: #7c3aed;
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-border: #e2e8f0;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-accent: #2563eb;
    --radius: 6px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

/* === Header === */
header {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: white;
    padding: 1.5rem 2rem;
    border-bottom: 3px solid var(--color-accent);
}

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

.header-content h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.subtitle {
    color: #94a3b8;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Header action buttons */
.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-submit-dataset {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.75rem;
    border: 1px solid #22c55e;
    border-radius: var(--radius);
    background: rgba(34,197,94,0.2);
    color: #4ade80;
    font-family: inherit;
    font-size: 0.8rem;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
    white-space: nowrap;
}

.btn-submit-dataset:hover {
    background: rgba(34,197,94,0.35);
    color: #bbf7d0;
    border-color: #4ade80;
}

/* About button in header */
.btn-about {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.75rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius);
    background: transparent;
    color: #94a3b8;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-about:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

.btn-about.highlight {
    animation: highlight-fade 3s ease-out forwards;
}

@keyframes highlight-fade {
    0%   { box-shadow: 0 0 0 2px #fb923c, 0 0 8px 2px rgba(251,146,60,0.5); }
    70%  { box-shadow: 0 0 0 2px #fb923c, 0 0 8px 2px rgba(251,146,60,0.5); }
    100% { box-shadow: none; }
}

/* === Layout === */
main {
    display: flex;
    min-height: calc(100vh - 140px);
}

/* === Filters Panel === */
#filters-panel {
    width: 260px;
    min-width: 260px;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: 1rem;
    overflow-y: auto;
}

#filters-panel h2 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: inline;
}

.btn-clear {
    float: right;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
    color: var(--color-text-muted);
    cursor: pointer;
}

.btn-clear:hover { background: #f1f5f9; }

.filter-group {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border);
}

.filter-group h3 {
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.dim-icon {
    font-size: 0.6rem;
}

.dim-domain { color: var(--color-domain); }
.dim-lifecycle { color: var(--color-lifecycle); }
.dim-datatype { color: var(--color-datatype); }
.dim-format { color: var(--color-format); }

.filter-options label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.2rem 0;
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--color-text);
}

.filter-options label:hover {
    color: var(--color-accent);
}

.filter-options input[type="checkbox"] {
    accent-color: var(--color-accent);
}

.filter-count {
    color: var(--color-text-muted);
    font-size: 0.7rem;
    margin-left: auto;
}

/* === Content Area === */
#content {
    flex: 1;
    padding: 1rem 1.5rem;
    overflow: auto;
}

/* === View Controls === */
.view-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.view-btn {
    padding: 0.4rem 1rem;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    border-radius: var(--radius);
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all 0.15s;
}

.view-btn.active {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}

.view-btn:hover:not(.active) {
    background: #f1f5f9;
}

.result-count {
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* === View Panels === */
.view-panel { display: none; }
.view-panel.active { display: block; }

/* === Table === */
#dataset-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

#dataset-table thead {
    background: #f1f5f9;
    position: sticky;
    top: 0;
}

#dataset-table th {
    text-align: left;
    padding: 0.6rem 0.8rem;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    border-bottom: 2px solid var(--color-border);
}

#dataset-table td {
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

#dataset-table tbody tr {
    cursor: pointer;
    transition: background 0.1s;
}

#dataset-table tbody tr:hover {
    background: #f8fafc;
}

#dataset-table tbody tr.selected {
    background: #dbeafe;
    box-shadow: inset 3px 0 0 var(--color-accent);
}

#dataset-table tbody tr.selected:hover {
    background: #bfdbfe;
}

.dataset-name {
    font-weight: 600;
    color: var(--color-accent);
}

.dataset-source {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.dim-badge {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-size: 0.7rem;
    font-weight: 500;
}

.badge-domain { background: #ccfbf1; color: #0f766e; }
.badge-lifecycle { background: #fef3c7; color: #92400e; }
.badge-datatype { background: #dbeafe; color: #1e40af; }
.badge-format { background: #ede9fe; color: #5b21b6; }

/* === Dashboard === */
.dash-summary {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.dash-stat {
    flex: 1;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem;
    text-align: center;
}

.dash-stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-accent);
}

.dash-stat-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-top: 0.2rem;
}

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

.dash-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem;
}

.dash-card h3 {
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.dash-bar-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.4rem;
}

.dash-bar-label {
    font-size: 0.75rem;
    width: 140px;
    min-width: 140px;
    text-align: right;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dash-bar-track {
    flex: 1;
    height: 16px;
    background: #f1f5f9;
    border-radius: 3px;
    overflow: hidden;
}

.dash-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s;
}

.bar-domain { background: var(--color-domain); }
.bar-lifecycle { background: var(--color-lifecycle); }
.bar-datatype { background: var(--color-datatype); }
.bar-format { background: var(--color-format); }

.dash-bar-count {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-text-muted);
    width: 24px;
    text-align: right;
}

/* === Graph Layer Toggles === */
.graph-layers {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.75rem;
}

.graph-layers-label {
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.layer-toggle {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    cursor: pointer;
    color: var(--color-text);
    user-select: none;
    transition: opacity 0.15s;
}

.layer-toggle:has(input:not(:checked)) {
    opacity: 0.4;
    text-decoration: line-through;
}

.layer-toggle input[type="checkbox"] {
    width: 0;
    height: 0;
    opacity: 0;
    position: absolute;
}

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

/* === Graph === */
#graph-container {
    width: 100%;
    height: 550px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: white;
}

/* === Detail Panel === */
.detail-panel {
    position: fixed;
    right: 0;
    top: 0;
    width: 400px;
    height: 100vh;
    background: var(--color-surface);
    border-left: 1px solid var(--color-border);
    box-shadow: -4px 0 20px rgba(0,0,0,0.08);
    padding: 1.5rem;
    overflow-y: auto;
    z-index: 100;
    transition: transform 0.2s ease;
}

.detail-panel.hidden {
    transform: translateX(100%);
}

.btn-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-muted);
    line-height: 1;
}

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

.detail-panel h2 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    padding-right: 2rem;
}

.detail-panel .detail-description {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.detail-meta {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.3rem 0.8rem;
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.detail-meta dt {
    font-weight: 600;
    color: var(--color-text-muted);
}

.detail-meta dd {
    color: var(--color-text);
}

/* Publications list in detail panel */
.detail-publications {
    margin-bottom: 0.75rem;
}

.detail-pub-heading {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 0.4rem;
}

.detail-pub-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.detail-pub-list li {
    display: flex;
    flex-direction: column;
    padding: 0.4rem 0.6rem;
    background: #f8fafc;
    border-radius: 4px;
    border-left: 2px solid var(--color-accent);
    font-size: 0.75rem;
}

.pub-authors {
    font-weight: 600;
    color: var(--color-text);
}

.pub-title {
    color: var(--color-text);
    font-style: italic;
}

.pub-venue {
    color: var(--color-text-muted);
    font-size: 0.7rem;
}

.detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-top: 0.5rem;
}

.tag {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    background: #f1f5f9;
    border-radius: 99px;
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.detail-notes {
    font-size: .85rem;
    color: #b45309;
    background: #fef3c7;
    border-left: 3px solid #f59e0b;
    padding: 8px 12px;
    margin-bottom: 12px;
    border-radius: 4px;
}

.detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.detail-link {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--color-accent);
    color: white;
    text-decoration: none;
    border-radius: var(--radius);
    font-size: 0.85rem;
}

.detail-link:hover { opacity: 0.9; }

.detail-scholar {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background: #f1f5f9;
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--radius);
    font-size: 0.8rem;
    border: 1px solid var(--color-border);
    transition: all 0.15s;
}

.detail-scholar:hover {
    background: #e2e8f0;
    border-color: #cbd5e1;
}

.scholar-icon {
    flex-shrink: 0;
}

/* === About / Splash Modal === */
.about-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.about-overlay.hidden {
    display: none;
}

.about-modal {
    background: white;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
    max-width: 512px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.about-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.about-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.about-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--color-text-muted);
    border-radius: 8px;
    transition: background 0.15s;
}

.about-close:hover {
    background: #f1f5f9;
    color: var(--color-text);
}

.about-body {
    padding: 1.5rem;
}

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

.about-section-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.about-paper-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
}

.about-authors {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    margin-top: 0.5rem;
}

.about-affiliation {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 0.1rem;
}

.about-abstract-id {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
    font-style: italic;
}

.about-resources {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.about-resource-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    transition: all 0.15s;
}

.about-resource-link:hover {
    border-color: #cbd5e1;
    background: #f8fafc;
}

.about-resource-icon {
    padding: 0.5rem;
    border-radius: 8px;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-icon-github { background: #1e293b; }

.about-resource-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
}

.about-resource-link:hover .about-resource-name {
    color: var(--color-accent);
}

.about-resource-desc {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.about-external {
    color: #94a3b8;
    flex-shrink: 0;
}

/* Report Issue Box */
.about-cite-box {
    position: relative;
    background: #f1f5f9;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 0.75rem 1rem;
}
.about-bibtex {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.75rem;
    line-height: 1.5;
    white-space: pre;
    overflow-x: auto;
    color: var(--color-text);
}
.btn-copy-bib {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    font-size: 0.7rem;
    color: var(--color-text-muted);
    cursor: pointer;
}
.btn-copy-bib:hover {
    background: #e2e8f0;
    color: var(--color-text);
}

.about-issue-box {
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: 8px;
    padding: 1rem;
}

.about-issue-content {
    display: flex;
    gap: 0.75rem;
}

.about-issue-icon {
    color: #d97706;
    flex-shrink: 0;
    margin-top: 2px;
}

.about-issue-title {
    font-weight: 600;
    font-size: 0.9rem;
    color: #92400e;
}

.about-issue-desc {
    font-size: 0.8rem;
    color: #a16207;
    margin-top: 0.25rem;
    line-height: 1.5;
}

.about-issue-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.75rem;
    padding: 0.4rem 0.75rem;
    background: #d97706;
    color: white;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 500;
    text-decoration: none;
    transition: background 0.15s;
}

.about-issue-btn:hover {
    background: #b45309;
}

.about-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border);
    background: #f8fafc;
    border-radius: 0 0 12px 12px;
}

.about-footer p {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    text-align: center;
}

/* === Footer === */
footer {
    text-align: center;
    padding: 1rem;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
}

footer a { color: var(--color-accent); }

/* === ClustrMaps Globe (visitor counter) === */
#clustrmaps-globe {
    position: fixed;
    bottom: 12px;
    right: 12px;
    width: 80px;
    height: 80px;
    z-index: 9999;
    border-radius: 50%;
    overflow: hidden;
    opacity: 0.85;
    transition: opacity 0.2s;
}

#clustrmaps-globe:hover {
    opacity: 1;
}

/* === Responsive === */
@media (max-width: 768px) {
    main { flex-direction: column; }
    #filters-panel {
        width: 100%;
        min-width: auto;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }
    .detail-panel { width: 100%; }
}