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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f3f4f6;
    color: #333;
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4 {
    font-family: 'Lora', Georgia, serif;
    letter-spacing: -0.01em;
}

a { color: #4B56D2; text-decoration: none; }
a:hover { color: #472183; text-decoration: underline; }

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

/* === Header === */
header {
    background: #fff;
    border-bottom: 1px solid #e5e7eb;
    padding: 0.75rem 0 0;
}

header .container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    flex-shrink: 0;
}

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

.logo {
    height: 2rem;
    width: auto;
}

header h1 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #472183;
}

/* === Tabs === */
.tabs {
    display: flex;
    gap: 0;
    margin-left: auto;
}

.tab {
    padding: 0.7rem 1.1rem 0.75rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: #4b5563;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: color 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.tab:hover {
    color: #472183;
    text-decoration: none;
}

.tab.active {
    color: #472183;
    border-bottom-color: #4B56D2;
    font-weight: 600;
}

/* === Main === */
main {
    flex: 1;
    padding: 2rem 0;
}

/* === Footer === */
footer {
    border-top: 1px solid #e5e7eb;
    padding: 1.5rem 0;
    margin-top: 2rem;
    color: #4b5563;
    font-size: 0.8rem;
    line-height: 1.5;
}

footer .container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

footer a { color: #4B56D2; }
footer a:hover { color: #472183; }

.footer-logo-link { flex-shrink: 0; line-height: 0; }
.footer-logo { height: 1.4rem; width: auto; opacity: 0.6; }

/* === Table View === */
.table-view h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #472183;
    margin-bottom: 0.25rem;
}

.view-description {
    color: #4b5563;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.table-wrapper {
    overflow-x: auto;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #fff;
}

.dataset-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.dataset-table thead {
    background: #f9fafb;
    border-bottom: 2px solid #e5e7eb;
}

.dataset-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    color: #472183;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.dataset-table th.num {
    text-align: right;
}

.dataset-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #f3f4f6;
    vertical-align: top;
}

.dataset-table td.num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.dataset-table tbody tr {
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.dataset-table tbody tr:hover {
    background: #f3f0ff;
}

.dataset-table tbody tr:last-child td {
    border-bottom: none;
}

.dataset-name {
    font-weight: 600;
    color: #472183;
}

.dataset-source {
    color: #4b5563;
    font-size: 0.8rem;
    margin-top: 0.15rem;
}

.dataset-description {
    max-width: 280px;
}

/* Category badges */
.badge {
    display: inline-block;
    padding: 0.15rem 0.55rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.badge-ethics { background: #ede9fe; color: #5b21b6; }
.badge-reasoning { background: #dbeafe; color: #1e40af; }
.badge-safety { background: #fce7f3; color: #9d174d; }
.badge-regulation { background: #e0f2fe; color: #0369a1; }

.license-text {
    font-size: 0.8rem;
    color: #4b5563;
}

/* === Attribution Section === */
.attribution {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    font-size: 0.85rem;
    color: #4b5563;
}

.attribution h3 {
    font-size: 0.9rem;
    color: #472183;
    margin-bottom: 0.5rem;
}

.attribution ul {
    list-style: none;
    columns: 2;
    gap: 0.5rem;
}

.attribution li {
    padding: 0.2rem 0;
    break-inside: avoid;
}

.attribution li strong {
    color: #472183;
}

/* === Explorer View === */
.breadcrumb {
    font-size: 0.85rem;
    color: #4b5563;
    margin-bottom: 1.25rem;
}

.breadcrumb a { color: #4B56D2; }
.breadcrumb span { margin: 0 0.35rem; }

.explorer-header {
    margin-bottom: 1.5rem;
}

.explorer-header h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #472183;
    margin-bottom: 0.25rem;
}

.explorer-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    color: #4b5563;
    font-size: 0.85rem;
    margin-top: 0.35rem;
}

.explorer-description {
    color: #333;
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

/* Filter bar */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.filter-bar select {
    padding: 0.4rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    background: #fff;
    color: #333;
    cursor: pointer;
}

.filter-bar select:focus {
    outline: none;
    border-color: #4B56D2;
    box-shadow: 0 0 0 2px rgba(75, 86, 210, 0.15);
}

.filter-info {
    font-size: 0.85rem;
    color: #4b5563;
}

/* Question cards */
.question-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 0.75rem;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.question-card:hover {
    border-color: #4B56D2;
    box-shadow: 0 4px 6px -1px rgba(130, 195, 236, 0.2);
}

.question-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.question-id {
    font-size: 0.8rem;
    font-weight: 600;
    color: #9ca3af;
}

.question-kind {
    font-size: 0.7rem;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.02em;
    color: #4b5563;
    background: #f3f4f6;
    padding: 0.1rem 0.5rem;
    border-radius: 4px;
}

.question-text {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
    word-wrap: break-word;
}

.options-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.option {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    border: 1px solid #f3f4f6;
}

.option-label {
    flex-shrink: 0;
    width: 1.6rem;
    height: 1.6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    background: #f3f4f6;
    color: #4b5563;
}

.option-text {
    padding-top: 0.15rem;
    word-wrap: break-word;
}

.option.correct {
    background: #f0fdf4;
    border-color: #bbf7d0;
}

.option.correct .option-label {
    background: #22c55e;
    color: #fff;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid #e5e7eb;
}

.pagination button {
    padding: 0.45rem 0.9rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background: #fff;
    color: #333;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.pagination button:hover:not(:disabled) {
    background: #f3f0ff;
    border-color: #4B56D2;
}

.pagination button:disabled {
    opacity: 0.4;
    cursor: default;
}

.pagination .page-info {
    font-size: 0.85rem;
    color: #4b5563;
    min-width: 8rem;
    text-align: center;
}

/* === Results View === */
.results-view h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #472183;
    margin-bottom: 0.25rem;
}

.results-ts {
    display: inline-block;
    margin-left: 0.5rem;
    font-size: 0.8rem;
    color: #9ca3af;
}

.results-placeholder {
    margin-top: 1.5rem;
    padding: 3rem 2rem;
    background: #fff;
    border: 1px dashed #d1d5db;
    border-radius: 8px;
    text-align: center;
    color: #4b5563;
}

/* Heatmap table */
.heatmap-wrapper {
    overflow-x: auto;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #fff;
    margin-top: 1rem;
}

.heatmap-table {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    font-size: 0.75rem;
    font-family: 'Inter', sans-serif;
    white-space: nowrap;
}

.heatmap-table thead {
    background: #f9fafb;
    border-bottom: 2px solid #e5e7eb;
}

.heatmap-table th {
    padding: 0.4rem 0.2rem;
    font-weight: 600;
    color: #472183;
    font-size: 0.62rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
}

.heatmap-model-header { text-align: left !important; padding-left: 0.5rem !important; width: 11rem; }
.heatmap-overall-header { border-right: 2px solid #e5e7eb; width: 3.5rem; }

.heatmap-ds {
    overflow: hidden;
    text-overflow: ellipsis;
}

.heatmap-table td {
    padding: 0.35rem 0.2rem;
    border-bottom: 1px solid #f3f4f6;
    text-align: center;
    font-variant-numeric: tabular-nums;
    overflow: hidden;
    text-overflow: ellipsis;
}

.heatmap-model {
    text-align: left !important;
    padding-left: 0.5rem !important;
    font-weight: 600;
    color: #333;
    overflow: hidden;
    text-overflow: ellipsis;
}

.heatmap-cell.overall {
    font-weight: 700;
    color: #472183;
    border-right: 2px solid #e5e7eb;
}

.heatmap-cell.acc-high { background: #dcfce7; color: #166534; }
.heatmap-cell.acc-mid  { background: #fef9c3; color: #854d0e; }
.heatmap-cell.acc-low  { background: #fee2e2; color: #991b1b; }

.heatmap-table tbody tr:hover { background: #f3f0ff; }
.heatmap-table tbody tr:hover .heatmap-cell.acc-high { background: #bbf7d0; }
.heatmap-table tbody tr:hover .heatmap-cell.acc-mid  { background: #fef08a; }
.heatmap-table tbody tr:hover .heatmap-cell.acc-low  { background: #fecaca; }

/* Legend */
.results-legend {
    display: flex;
    gap: 1.25rem;
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: #4b5563;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.legend-swatch {
    display: inline-block;
    width: 0.85rem;
    height: 0.85rem;
    border-radius: 3px;
    border: 1px solid #e5e7eb;
}

.legend-swatch.acc-high { background: #dcfce7; }
.legend-swatch.acc-mid  { background: #fef9c3; }
.legend-swatch.acc-low  { background: #fee2e2; }

/* === Hero Chart Section === */
.hero-chart-section {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 1rem;
    margin-bottom: 1.5rem;
}

.hero-chart-section h3 {
    font-size: 1.1rem;
    color: #472183;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 1.1rem;
    color: #472183;
    margin: 1.5rem 0 0.75rem;
}

/* === Model Tiles === */
.model-tiles {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.model-tile {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 0.85rem 1rem;
    text-decoration: none;
    color: inherit;
    transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
}

.model-tile:hover {
    transform: translateY(-1px);
    border-color: #4B56D2;
    box-shadow: 0 4px 12px rgba(75, 86, 210, 0.12);
    text-decoration: none;
}

.tile-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.tile-top-row {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
}

.tile-rank {
    font-size: 0.7rem;
    font-weight: 700;
    color: #9ca3af;
    font-family: 'Inter', sans-serif;
    flex-shrink: 0;
}

.tile-name {
    font-family: 'Lora', Georgia, serif;
    font-size: 0.92rem;
    font-weight: 600;
    color: #472183;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tile-accuracy {
    font-size: 1.6rem;
    font-weight: 700;
    color: #333;
    font-family: 'Inter', sans-serif;
    line-height: 1.1;
}

.tile-pct {
    font-size: 0.85rem;
    font-weight: 500;
    color: #9ca3af;
}

.tile-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.tile-cat-badge {
    display: inline-block;
    padding: 0.05rem 0.4rem;
    border-radius: 9999px;
    font-size: 0.65rem;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    white-space: nowrap;
}

.tile-meta {
    display: flex;
    gap: 0.6rem;
    font-size: 0.7rem;
    color: #9ca3af;
    font-family: 'Inter', sans-serif;
    margin-top: auto;
}

.tile-radar {
    flex-shrink: 0;
    width: 140px;
    height: 140px;
}

/* === Detail Page === */
.detail-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.detail-rank {
    font-size: 1.5rem;
    font-weight: 700;
    color: #9ca3af;
    font-family: 'Inter', sans-serif;
    background: #f3f4f6;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.detail-header h2 {
    margin-bottom: 0;
}

.detail-model-path {
    font-size: 0.82rem;
    color: #9ca3af;
    font-family: 'Inter', sans-serif;
}

/* Stat cards — compact inline row */
.detail-stats-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1.5rem;
    align-items: baseline;
}

.stat-inline {
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
}

.stat-val-inline {
    font-size: 1.1rem;
    font-weight: 700;
    color: #472183;
    font-family: 'Inter', sans-serif;
    font-variant-numeric: tabular-nums;
}

.stat-lbl-inline {
    font-size: 0.75rem;
    color: #9ca3af;
    font-family: 'Inter', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Chart card */
.chart-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.chart-card h3 {
    font-size: 1.1rem;
    color: #472183;
    margin-bottom: 1rem;
}

.radar-wrapper {
    max-width: 550px;
    margin: 0 auto;
}

/* Category cards */
.category-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.category-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-top: 3px solid #7c3aed;
    border-radius: 8px;
    padding: 1.25rem;
}

.cat-card-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.25rem;
}

.cat-card-header h4 {
    font-size: 1rem;
    color: #472183;
}

.cat-card-acc {
    font-size: 1.3rem;
    font-weight: 700;
    color: #333;
    font-family: 'Inter', sans-serif;
}

.cat-card-meta {
    font-size: 0.78rem;
    color: #9ca3af;
    margin-bottom: 0.75rem;
}

.cat-ds-bars {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.cat-ds-row {
    display: grid;
    grid-template-columns: 5rem 1fr 3rem;
    align-items: center;
    gap: 0.5rem;
}

.cat-ds-name {
    font-size: 0.75rem;
    font-family: 'Inter', sans-serif;
    color: #4b5563;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cat-ds-bar-bg {
    height: 6px;
    background: #f3f4f6;
    border-radius: 3px;
    overflow: hidden;
}

.cat-ds-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.cat-ds-val {
    font-size: 0.72rem;
    font-family: 'Inter', sans-serif;
    color: #4b5563;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

/* Detail dataset table */
.detail-ds-table .ds-table-name {
    text-align: left;
    padding-left: 1rem;
    font-weight: 600;
    color: #333;
}

.detail-ds-table .ds-table-cats {
    text-align: left;
}

.detail-ds-table .ds-table-num {
    text-align: center;
    font-variant-numeric: tabular-nums;
}

.detail-ds-table .badge {
    font-size: 0.65rem;
    padding: 0.1rem 0.4rem;
}

/* Reasoning badge */
.reasoning-badge {
    font-size: 0.85em;
    vertical-align: baseline;
    cursor: help;
}

.params-badge {
    display: inline-block;
    margin-left: 0.35rem;
    padding: 0.05rem 0.4rem;
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    background: #f3f4f6;
    color: #4b5563;
    vertical-align: middle;
}

.tile-hyper {
    font-size: 0.65rem;
    font-family: 'Inter', sans-serif;
    color: #9ca3af;
    letter-spacing: 0.01em;
}

/* MAS-specific tile meta */
.tile-mas-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.78rem;
    font-family: 'Inter', sans-serif;
    color: #4B56D2;
    font-weight: 500;
}

/* Specialist charts row (accuracy + usage side-by-side) */
.specialist-charts-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.specialist-chart-wrapper .cat-ds-bars {
    max-width: 500px;
}

.chart-subtitle {
    font-size: 0.8rem;
    color: #9ca3af;
    margin: -0.5rem 0 0.75rem;
}

/* Heatmap model link */
.heatmap-model a {
    color: #333;
    text-decoration: none;
}

.heatmap-model a:hover {
    color: #4B56D2;
    text-decoration: underline;
}

/* Loading & error states */
.loading {
    text-align: center;
    color: #4b5563;
    padding: 3rem 0;
    font-size: 0.95rem;
}

.empty-state, .error-state {
    text-align: center;
    padding: 3rem 0;
    color: #4b5563;
}

.empty-state p, .error-state p {
    margin-bottom: 1rem;
}

/* === Responsive === */
@media (max-width: 1024px) {
    .model-tiles { grid-template-columns: 1fr; }
    .category-cards { grid-template-columns: repeat(2, 1fr); }
    .detail-stats-inline { gap: 0.4rem 1rem; }
}

@media (max-width: 768px) {
    .specialist-charts-row { grid-template-columns: 1fr; }
    .container { padding: 0 1rem; }

    header .container {
        flex-wrap: wrap;
        gap: 0 1rem;
    }

    .tabs { margin-left: 0; }

    .dataset-table { font-size: 0.82rem; }
    .dataset-table th, .dataset-table td { padding: 0.6rem 0.65rem; }
    .dataset-description { max-width: 180px; }

    .attribution ul { columns: 1; }

    .question-card { padding: 1rem; }

    .pagination { gap: 0.25rem; }
    .pagination button { padding: 0.4rem 0.6rem; font-size: 0.8rem; }

    footer .container { flex-direction: column; gap: 0.5rem; }

    .model-tiles { grid-template-columns: 1fr; }
    .tile-radar { width: 120px; height: 120px; }
    .category-cards { grid-template-columns: 1fr; }
    .detail-stats-inline { gap: 0.4rem 1rem; }
    .detail-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
    .cat-ds-row { grid-template-columns: 4rem 1fr 3rem; }
}