:root {
    --bg: #ffffff;
    --surface: #ffffff;
    --text: #15231d;
    --muted: #586b62;
    --line: rgba(21, 35, 29, 0.09);
    --primary: #3c7a5c;
    --primary-strong: #2b5e45;
    --primary-soft: rgba(60, 122, 92, 0.1);
    --accent-blue: #3b6fd8;
    --accent-amber: #c27a1a;
    --chip: #eef6f1;
    --shadow: 0 6px 18px rgba(21, 35, 29, 0.045);
    --radius-lg: 20px;
    --radius-md: 14px;
    --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: radial-gradient(circle at 12% -6%, rgba(213, 238, 224, 0.22) 0, transparent 40%),
                radial-gradient(circle at 100% 0%, rgba(226, 240, 250, 0.2) 0, transparent 36%),
                var(--bg);
    color: var(--text);
    font-family: "Space Grotesk", system-ui, sans-serif;
    line-height: 1.55;
}

a {
    color: var(--primary-strong);
}

.shell {
    width: min(1180px, calc(100vw - 32px));
    margin: 0 auto;
    padding: 24px 0 52px;
}

/* ---------- Hero ---------- */

.hero-body {
    padding: 22px 0 8px;
    text-align: center;
}

.venue {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 8px 20px;
    border: 1px solid rgba(60, 122, 92, 0.25);
    background: rgba(252, 255, 253, 0.95);
    color: var(--primary-strong);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

h1 {
    margin: 14px auto 12px;
    font-size: clamp(1.7rem, 3.6vw, 3.1rem);
    line-height: 1.12;
    max-width: 980px;
    letter-spacing: -0.015em;
}

.brand {
    color: var(--primary);
}

.authors {
    margin: 8px 0 0;
    font-size: clamp(1.05rem, 1.8vw, 1.32rem);
    font-weight: 600;
    color: #20342b;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.2em 0.35em;
}

.authors sup,
.affiliations sup,
.footnote sup {
    font-size: 0.65em;
    font-weight: 500;
}

.affiliations {
    margin: 6px 0 0;
    font-family: var(--mono);
    font-size: clamp(0.92rem, 1.4vw, 1.05rem);
    color: var(--muted);
}

.footnote {
    margin: 2px 0 0;
    font-size: 0.85rem;
    color: var(--muted);
}

.author-link {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: color 160ms ease, border-color 160ms ease;
}

.author-link:hover,
.author-link:focus-visible {
    color: var(--primary-strong);
    border-color: currentColor;
    outline: none;
}

.links {
    margin-top: 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.link-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    padding: 10px 18px;
    border-radius: 14px;
    border: 2px solid #111;
    background: #111;
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    transition: transform 160ms ease, box-shadow 160ms ease;
}

.link-btn:hover,
.link-btn:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 5px 12px rgba(21, 35, 29, 0.12);
}

.link-icon {
    width: 16px;
    height: 16px;
    flex: 0 0 auto;
    fill: currentColor;
}

/* ---------- Sections ---------- */

section {
    margin-top: 48px;
    scroll-margin-top: 16px;
}

.hero + section {
    margin-top: 10px;
}

.section-head {
    padding: 0 0 14px;
    border-bottom: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.section-head h2 {
    margin: 0;
    font-size: 1.38rem;
    letter-spacing: -0.01em;
}

.section-body {
    padding: 20px 0 0;
}

.prose p {
    font-size: 1.06rem;
    margin: 0 0 14px;
}

.callout {
    margin-top: 18px;
    padding: 16px 20px;
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    background: var(--chip);
}

.callout p {
    margin: 0;
}

.note {
    color: var(--muted);
    font-size: 1rem !important;
    margin-top: 18px !important;
}

.math {
    font-family: "Times New Roman", Times, serif;
    font-style: italic;
    font-size: 1.08em;
    white-space: nowrap;
}

.sub-head {
    margin: 34px 0 12px;
    font-size: 1.15rem;
}

/* ---------- Teaser ---------- */

.teaser-media {
    width: min(100%, 1080px);
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.teaser-video {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 32 / 9;  /* 2560x720, see build_teaser.py */
    background: #f7faf8;
}

.teaser-placeholder {
    aspect-ratio: 16 / 7;
    display: grid;
    place-items: center;
    border: 2px dashed rgba(60, 122, 92, 0.35);
    background: repeating-linear-gradient(45deg, #f6faf8 0 14px, #eef5f1 14px 28px);
}

.placeholder-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: var(--muted);
    font-size: 1.1rem;
}

.placeholder-icon {
    font-size: 2.2rem;
}

.placeholder-inner code {
    font-family: var(--mono);
    font-size: 0.9rem;
}

.tldr {
    max-width: 1024px;
    margin: 22px auto 0;
    text-align: center;
    font-size: 1.24rem;
    line-height: 1.6;
    color: #2e423a;
}

.tldr-tag {
    display: inline-block;
    margin-right: 6px;
    padding: 2px 10px;
    border-radius: 999px;
    background: var(--primary);
    color: #fff;
    font-family: var(--mono);
    font-size: 0.8rem;
    font-weight: 500;
    vertical-align: 2px;
}

.teaser-highlights {
    margin-top: 24px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.teaser-highlight {
    --c: var(--primary);
    padding: 18px 18px 16px;
    border: 1px solid var(--line);
    border-top: 4px solid var(--c);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, #fff 0%, #f8fbf9 100%);
    box-shadow: var(--shadow);
    transition: transform 160ms ease, box-shadow 160ms ease;
}

.teaser-highlight:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 22px rgba(21, 35, 29, 0.07);
}

.teaser-highlight:nth-child(2) {
    --c: var(--accent-blue);
}

.teaser-highlight:nth-child(3) {
    --c: var(--accent-amber);
}

.teaser-highlight-tag,
.stage-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--c, var(--primary-strong));
    background: color-mix(in srgb, var(--c, var(--primary)) 11%, transparent);
}

.teaser-highlight h3,
.stage h3 {
    margin: 10px 0 6px;
    font-size: 1.15rem;
}

.teaser-highlight p,
.stage p {
    margin: 0;
    color: #2e423a;
    font-size: 0.98rem;
}

/* ---------- Method ---------- */

.figure {
    margin: 10px auto 18px;
    text-align: center;
    max-width: 960px;
}

.figure img {
    width: 80%;
    max-width: 920px;
    height: auto;
}

.figure figcaption {
    margin-top: 6px;
    color: var(--muted);
    font-size: 0.95rem;
}

.stage-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.stage {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow);
}

.objective-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.objective {
    padding: 14px 16px;
    border-radius: var(--radius-md);
    background: var(--chip);
}

.objective h4 {
    margin: 0 0 4px;
    font-size: 1rem;
    color: var(--primary-strong);
}

.objective p {
    margin: 0;
    font-size: 0.94rem !important;
}

/* ---------- Examples ---------- */

.tabs-row {
    display: flex;
    justify-content: center;
    margin: 4px 0 20px;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    padding: 6px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid rgba(60, 122, 92, 0.22);
    box-shadow: var(--shadow);
}

.tab {
    font: inherit;
    font-size: 1.05rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 0;
    border-radius: 13px;
    padding: 11px 22px;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
}

/* Only after the first selection, so a deep link (#egocentric) doesn't fade from the default tab on load */
.tabs.ready .tab {
    transition: background 150ms ease, color 150ms ease;
}

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

.tab:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.tab[aria-selected="true"] {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 3px 8px rgba(60, 122, 92, 0.2);
}

.group-desc {
    margin: 0 auto 18px;
    max-width: 900px;
    text-align: center;
    color: var(--muted);
}

.group-desc strong {
    color: var(--text);
}

.example-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
    gap: 18px;
}

.example {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.example-media {
    display: grid;
    gap: 2px;
    background: #0d1512;
}

.example-media img {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.example-media.single img {
    aspect-ratio: 16 / 11;
}

.example-media.frames-3 {
    grid-template-columns: repeat(3, 1fr);
}

.example-media.frames-4 {
    grid-template-columns: repeat(2, 1fr);
}

.example-media.frames-4 img {
    aspect-ratio: 16 / 9;
}

.example-media.video {
    position: relative;
    display: block;
    cursor: pointer;
}

.example-media.video video {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    background: #0d1512;
}

.example-media.video.ego video {
    aspect-ratio: 4 / 3;
}

.video-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 3px 9px;
    border-radius: 999px;
    background: rgba(13, 21, 18, 0.72);
    font-family: var(--mono);
    font-size: 0.74rem;
    color: #fff;
    pointer-events: none;
}

.clip-timeline {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 7px;
    background: rgba(255, 255, 255, 0.28);
    pointer-events: none;
}

.clip-segment {
    position: absolute;
    top: 0;
    bottom: 0;
}

.clip-playhead {
    position: absolute;
    top: -3px;
    bottom: 0;
    width: 2px;
    margin-left: -1px;
    background: #fff;
    box-shadow: 0 0 0 1px rgba(13, 21, 18, 0.5);
}

.example-body {
    padding: 14px 16px 16px;
}

.example-caption {
    margin: 0;
    font-size: 0.98rem;
    font-style: italic;
    /* One line at most: longer captions are cut with an ellipsis (the full one is in the tooltip) */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.example-source {
    margin: 3px 0 12px;
    font-family: var(--mono);
    font-size: 0.66rem;
    color: #8b918e;
}

.concepts {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 5px;
}

.concept {
    display: grid;
    grid-template-columns: minmax(92px, 34%) 1fr auto;
    align-items: center;
    gap: 10px;
    font-size: 0.92rem;
}

.concept-name {
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.concept-bar {
    height: 10px;
    border-radius: 999px;
    background: #edf2ef;
    overflow: hidden;
}

.concept-fill {
    height: 100%;
    border-radius: 999px;
    background: var(--primary);
    transform-origin: left;
    animation: grow 600ms ease-out both;
}

.concept-weight {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--muted);
    min-width: 3.4em;
    text-align: right;
}

@keyframes grow {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
    .concept-fill { animation: none; }
    .teaser-highlight, .link-btn { transition: none; }
}

.footer-note {
    margin: 16px 0 0;
    color: var(--muted);
    font-size: 0.9rem;
}

/* ---------- Results ---------- */

.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 22px;
}

/* One accent per stat, as in the teaser highlights: green, blue, amber */
.stat {
    --c: var(--primary);
    padding: 18px 20px;
    border-radius: var(--radius-lg);
    background: linear-gradient(160deg, color-mix(in srgb, var(--c) 9%, #ffffff) 0%, #ffffff 100%);
    border: 1px solid color-mix(in srgb, var(--c) 22%, transparent);
    border-top: 4px solid var(--c);
}

.stat:nth-child(2) {
    --c: var(--accent-blue);
}

.stat:nth-child(3) {
    --c: var(--accent-amber);
}

.stat-value {
    font-size: 2.3rem;
    font-weight: 700;
    color: color-mix(in srgb, var(--c) 85%, #000000);
    line-height: 1.1;
}

.stat-value span {
    font-size: 1.3rem;
    font-weight: 500;
}

.stat-label {
    margin-top: 4px;
    color: #2e423a;
    font-size: 0.97rem;
}

/* Desktop: the three tables in one row, equal widths */
.results-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.th-sub {
    font-weight: 400;
    font-size: 0.74rem;
}

.more-results {
    margin: 10px 0 0;
    text-align: center;
    font-weight: 600;
}

.more-results a {
    color: var(--primary-strong);
    text-decoration: none;
    border-bottom: 1px solid transparent;
}

.more-results a:hover,
.more-results a:focus-visible {
    border-color: currentColor;
}

/* Method names may wrap ("Perception Encoder"), so the narrow tables fit without scrolling */
.results-grid td:first-child {
    white-space: normal;
}


.results-grid .result-card {
    display: flex;
    flex-direction: column;
}

.results-grid .result-card > .remark:last-child {
    margin-top: auto;
    padding-top: 12px;
}

.results-grid th,
.results-grid td {
    padding: 7px 6px;
}

/* Narrower desktops: keep the row, with slightly smaller tables (one column below 900px, see the end of the file) */
@media (max-width: 1100px) {
    .results-grid th,
    .results-grid td {
        padding: 6px 4px;
        font-size: 0.76rem;
    }

    .results-grid .result-card {
        padding: 16px 14px 12px;
    }
}

@media (max-width: 1000px) {
    .results-grid th,
    .results-grid td {
        padding: 5px 3px;
        font-size: 0.72rem;
    }
}

.result-card {
    min-width: 0;
    padding: 18px 18px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow);
}

.result-card.wide {
    grid-column: 1 / -1;
}

.result-card h3 {
    margin: 0 0 12px;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.bench {
    font-family: var(--mono);
    font-size: 0.78rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--chip);
    color: var(--primary-strong);
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    white-space: nowrap;
}

th,
td {
    padding: 7px 9px;
    text-align: center;
    border-bottom: 1px solid var(--line);
}

th {
    font-weight: 600;
    color: var(--muted);
    font-size: 0.82rem;
}

td:first-child,
th:first-child {
    text-align: left;
}

td {
    font-family: var(--mono);
    font-size: 0.84rem;
}

td:first-child {
    font-family: inherit;
}

tr.ours td {
    background: rgba(60, 122, 92, 0.07);
}

tr.ours td:first-child {
    font-weight: 700;
    color: var(--primary-strong);
}

/* Non-interpretable baselines (reference rows) */
tr.muted-row td {
    color: var(--muted);
    font-style: italic;
    background: #f1f3f2;
}

.baseline-key {
    margin: 16px 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.85rem;
    font-style: italic;
    color: var(--muted);
}

.baseline-swatch {
    display: inline-block;
    width: 22px;
    height: 12px;
    border-radius: 3px;
    background: #f1f3f2;
    box-shadow: inset 0 0 0 1px rgba(21, 35, 29, 0.15);
}

.remark {
    margin: 12px 0 0;
    color: var(--muted);
    font-size: 0.93rem;
}

.remark.top {
    margin: 0 0 12px;
}

.remark.centered {
    text-align: center;
}

/* ---------- Debugging ---------- */

.debug-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

/* The two cards share a row: their closing notes sit at the bottom so both read as full */
.debug-grid .result-card {
    display: flex;
    flex-direction: column;
}

.debug-grid .result-card > .remark:last-child {
    margin-top: auto;
    padding-top: 12px;
}

.bias-list {
    list-style: none;
    margin: 20px 0 0;
    padding: 0;
    display: grid;
    gap: 14px;
}

.bias-list li {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 10px;
    align-items: baseline;
}

.bias-label {
    font-weight: 700;
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.chip {
    padding: 2px 9px;
    border-radius: 999px;
    background: #f1f4f2;
    font-family: var(--mono);
    font-size: 0.8rem;
}

.chip.hl {
    background: rgba(194, 122, 26, 0.15);
    color: #7a4a0c;
    font-weight: 500;
}

/* ---------- ImageNet folds chart ---------- */

.chart-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px 16px;
    margin: 0 0 10px;
    font-size: 0.85rem;
    color: var(--muted);
}

.chart-legend span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.swatch {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 4px;
    background: var(--c);
}

.swatch.grace,
.fold-bar.grace {
    --c: #2f8a5f;
}

.swatch.explainr,
.fold-bar.explainr {
    --c: #c2741a;
}

.swatch.neutral {
    --c: #7c8a84;
}

.swatch.hatched,
.fold-bar.hatched {
    background: repeating-linear-gradient(45deg, var(--c) 0 2px, #fff 2px 5px);
    box-shadow: inset 0 0 0 1.5px var(--c);
}

.fold-chart {
    position: relative;
    padding: 26px 0 0 46px;
}

/* Y-axis title, rotated along the plot's left edge (left of the tick labels) */
.fold-ylabel {
    position: absolute;
    left: 0;
    top: 26px;
    height: 210px;
    width: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    font-size: 0.78rem;
    color: var(--muted);
    white-space: nowrap;
}

.fold-plot {
    position: relative;
    height: 210px;
    display: flex;
    align-items: stretch;
    gap: 8px;
    border-bottom: 1px solid rgba(21, 35, 29, 0.25);
}

.fold-grid {
    position: absolute;
    left: 0;
    right: 0;
    border-top: 1px solid var(--line);
    pointer-events: none;
}

.fold-grid span {
    position: absolute;
    left: -26px;
    top: -0.6em;
    width: 20px;
    text-align: right;
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--muted);
}

.fold-group {
    position: relative;
    flex: 2 1 0;
    display: flex;
    flex-direction: column;
}

.fold-group.avg {
    flex: 4 1 0;
    margin-left: 10px;
    background: rgba(21, 35, 29, 0.035);
    border-radius: 8px 8px 0 0;
}

.fold-bars {
    flex: 1;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 2px;
    padding: 0 4px;
}

.fold-bar {
    position: relative;
    width: min(26px, 45%);
    border-radius: 4px 4px 0 0;
    background: var(--c);
    cursor: default;
    outline: none;
}

.fold-group.avg .fold-bar {
    width: min(26px, 22%);
}

.fold-bar:hover,
.fold-bar:focus-visible {
    filter: brightness(0.9);
    box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--c);
}

.fold-bar.hatched:hover,
.fold-bar.hatched:focus-visible {
    box-shadow: inset 0 0 0 1.5px var(--c), 0 0 0 2px #fff, 0 0 0 4px var(--c);
}

.fold-value {
    /* Vertical, as in the paper's Figure 4, so adjacent labels never collide */
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) rotate(180deg);
    writing-mode: vertical-rl;
    padding-top: 4px;
    font-family: var(--mono);
    font-size: 0.7rem;
    line-height: 1;
    color: var(--text);
    white-space: nowrap;
}

.fold-label {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding-top: 4px;
    text-align: center;
    font-size: 0.78rem;
    color: var(--muted);
    white-space: nowrap;
}

.fold-chart {
    margin-bottom: 26px;
}

.fold-tooltip {
    position: absolute;
    transform: translate(-50%, calc(-100% - 8px));
    padding: 5px 9px;
    border-radius: 8px;
    background: #15231d;
    color: #fff;
    font-size: 0.8rem;
    white-space: nowrap;
    pointer-events: none;
    z-index: 2;
}

/* ---------- Visual grounding ---------- */

.grounding-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 22px;
    align-items: start;
    margin-bottom: 22px;
}

.grounding-intro .note {
    margin-top: 0 !important;
}

.auprc {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 8px;
}

.auprc li {
    display: grid;
    grid-template-columns: 118px 1fr 44px;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.auprc-bar {
    height: 12px;
    border-radius: 999px;
    background: #edf2ef;
    overflow: hidden;
}

.auprc-bar span {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: #9aa8a1;
}

.auprc li.ours .auprc-bar span {
    background: var(--primary);
}

.auprc li.ours .auprc-name {
    font-weight: 700;
    color: var(--primary-strong);
}

.auprc-value {
    font-family: var(--mono);
    font-size: 0.8rem;
    text-align: right;
}

.grounding-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
    gap: 18px;
}

.grounding-img {
    display: block;
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    background: #0d1512;
}

.grounding-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.grounding-btn {
    font: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 11px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: #f4f7f5;
    color: var(--text);
    cursor: pointer;
}

.grounding-btn[aria-pressed="true"] {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.grounding-weight {
    font-family: var(--mono);
    font-size: 0.74rem;
    font-weight: 400;
    opacity: 0.8;
}

.grounding-card .example-source {
    margin: 10px 0 0;
}

/* ---------- Citation & footer ---------- */

.copy-btn {
    font: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: #fff;
    cursor: pointer;
}

.copy-btn:hover {
    border-color: var(--primary);
    color: var(--primary-strong);
}

.bibtex {
    margin: 0;
    padding: 18px 20px;
    border-radius: var(--radius-md);
    background: #f4f7f5;
    font-family: var(--mono);
    font-size: 0.86rem;
    line-height: 1.6;
    overflow-x: auto;
}

.ack {
    color: var(--muted);
    font-size: 0.93rem;
    margin: 0;
}

.page-footer {
    margin-top: 48px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    text-align: center;
    color: var(--muted);
    font-size: 0.85rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
    .teaser-highlights,
    .stage-grid,
    .stat-grid,
    .results-grid,
    .debug-grid,
    .grounding-intro {
        grid-template-columns: 1fr;
    }

    .objective-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .objective-grid {
        grid-template-columns: 1fr;
    }

    .example-grid {
        grid-template-columns: 1fr;
    }

    .bias-list li {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .teaser-placeholder {
        aspect-ratio: 4 / 3;
    }
}