@charset "UTF-8";

/* Readable type first. The wordmark and all motion belong to EgoActionBench. */
:root {
  --ink: #152036;
  --muted: #596578;
  --blue: #2454d6;
  --paper: #fff;
  --off: #f4f6fa;
  --line: #dce2eb;
  --left: #126d79;
  --left-bg: #dff3f3;
  --right: #9c3c54;
  --right-bg: #fbe7ed;
  --both: #69459e;
  --both-bg: #eee5fa;
  --radius: 20px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 114px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 18px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button, a, select, input { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; color: inherit; }
button:disabled { cursor: default; }
button, select { background: white; }
img, video { max-width: 100%; display: block; }
button:focus-visible, a:focus-visible, select:focus-visible, input:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
p, h1, h2, h3, figure { margin: 0; }
button svg { pointer-events: none; }
svg { width: 20px; height: 20px; fill: currentColor; flex-shrink: 0; }
[hidden] { display: none !important; }
.wrap { width: min(1280px, calc(100% - 96px)); margin-inline: auto; }
.section-space { padding-block: 112px; }
.tiny-label { color: var(--muted); font-size: 12px; font-weight: 650; letter-spacing: 1.2px; }
h2 { font-size: clamp(34px, 3.8vw, 50px); font-weight: 550; letter-spacing: -1.65px; line-height: 1.15; }
h3 { font-size: 25px; letter-spacing: -.6px; font-weight: 600; line-height: 1.35; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 20px; top: -90px; padding: 12px 20px; background: var(--ink); color: #fff; z-index: 100; }
.skip-link:focus { top: 12px; }

/* Persistent navigation uses the actual teaser wordmark, not a typeset substitute. */
.site-header { position: sticky; top: 0; z-index: 20; height: 88px; padding-inline: max(48px, calc((100vw - 1280px) / 2)); display: flex; align-items: center; justify-content: space-between; gap: 30px; background: #fffffff2; backdrop-filter: blur(18px); border-bottom: 1px solid #e4e9ef; transition: box-shadow .25s; }
.site-header.is-scrolled { box-shadow: 0 5px 26px #172a4410; }
.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand img { width: 218px; height: auto; }
.site-header nav { display: flex; align-items: center; gap: 32px; font-size: 16px; font-weight: 550; }
.site-header nav a { display: inline-flex; align-items: center; min-height: 44px; transition: color .2s; }
.site-header nav a:hover { color: var(--blue); }
.site-header nav .nav-resource { background: var(--ink); color: white; border-radius: 10px; padding: 8px 18px; gap: 16px; }
.site-header nav .nav-resource:hover { background: #2e4163; color: white; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 16px; padding: 14px 19px; min-height: 54px; border-radius: 10px; font-size: 16px; font-weight: 550; line-height: 1.4; border: 1px solid transparent; transition: background .2s, transform .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button-dark { background: var(--ink); color: white; }
.button-dark:hover { background: #2e4163; }
.button-outline { border-color: #cbd3df; background: #fff; }
.button-outline:hover { background: #f3f6fc; border-color: #7e93b3; }

/* A split editorial hero, with a real annotation-driven motion preview. */
.hero { padding-top: 64px; background: linear-gradient(135deg, #fff 30%, #f6f9fd 100%); overflow: clip; }
.hero-grid { display: grid; grid-template-columns: .94fr 1.06fr; align-items: center; gap: 56px; }
.hero-copy { min-width: 0; padding-block: 8px 16px; }
.hero h1 { margin: 0 0 28px; }
.hero h1 img { width: 100%; max-width: 495px; height: auto; }
.hero-statement { color: var(--ink); font-size: clamp(42px, 4.7vw, 62px); line-height: 1.04; letter-spacing: -2.4px; font-weight: 530; }
.hero-keyword { color: var(--both); }
.paper-title { font-size: 21px; line-height: 1.55; letter-spacing: -.3px; color: var(--muted); margin-top: 24px; max-width: 500px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-film { min-width: 0; border: 1px solid #d4dce8; border-radius: 23px; background: #fff; color: var(--ink); overflow: hidden; box-shadow: 0 18px 50px -30px #1a335d35; }
.hero-film-frame { position: relative; background: #fff; }
.hero-film-frame video { width: 100%; aspect-ratio: 16/9; object-fit: contain; }
.hero-motion-toggle { position: absolute; bottom: 16px; right: 16px; display: flex; align-items: center; gap: 9px; min-height: 44px; padding: 8px 13px; border: 1px solid #d4dce8; border-radius: 8px; background: #fffffff2; color: var(--ink); font-size: 14px; box-shadow: 0 2px 12px #15203615; backdrop-filter: blur(12px); }
.motion-symbol { width: 16px; text-align: center; font-weight: 650; }
.hero-expand { position: absolute; bottom: 16px; left: 16px; display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid #d4dce8; border-radius: 8px; background: #fffffff2; color: var(--ink); box-shadow: 0 2px 12px #15203615; }
.hero-expand svg { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.current-action.is-empty { border-color: #dce2e9; background: #f8f9fb; }
.current-action.is-empty p { color: #667285; }
.hero-media-error { font-size: 14px; color: #8d233f; margin: 12px 20px; }
.hero-credits { margin-top: 44px; padding-block: 29px 34px; border-top: 1px solid var(--line); }
.authors { font-size: 17px; font-weight: 500; }
.authors > span { margin: 0 12px; color: #abb4c2; }
.authors sup, .affiliations sup { font-size: 11px; margin-left: 2px; }
.affiliations { font-size: 14px; color: var(--muted); margin-top: 7px; }

/* Analytical viewer: comfortable text and controls; the timeline retains exact widths. */
.explore { padding-top: 91px; }
.section-topline { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 35px; }
.section-topline p { font-size: 19px; color: var(--muted); line-height: 1.75; }
.viewer { border: 1px solid #d4dce8; border-radius: var(--radius); overflow: hidden; box-shadow: 0 12px 40px -25px #19315445; }
.viewer-top { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(350px, 1fr); }
.video-panel { position: relative; background: #fff; display: flex; align-items: center; min-width: 0; }
.video-panel video { width: 100%; aspect-ratio: 16/9; object-fit: contain; background: #fff; }
.action-panel { background: #fff; padding: 23px 26px; display: flex; flex-direction: column; gap: 12px; }
.action-panel-title { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.action-panel-title output { font-size: 22px; letter-spacing: -.6px; font-weight: 550; font-variant-numeric: tabular-nums; white-space: nowrap; }
.current-action { border: 1px solid var(--caption-border); border-radius: 10px; background: var(--caption-bg); padding: 14px 16px; min-height: 90px; }
.left { --hand-color: var(--left); --hand-bg: var(--left-bg); --caption-bg: #f1f8f8; --caption-border: #cddfe1; }
.right { --hand-color: var(--right); --hand-bg: var(--right-bg); --caption-bg: #fdf5f7; --caption-border: #ead6de; }
.both { --hand-color: var(--both); --hand-bg: var(--both-bg); --caption-bg: #f7f4fc; --caption-border: #dfd5ee; }
.hand-label { font-size: 14px; font-weight: 650; color: var(--hand-color); display: flex; gap: 7px; align-items: center; }
.current-action p { font-size: 16px; font-weight: 450; line-height: 1.5; margin: 6px 0 4px; }
.action-time { font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.playback { border-top: 1px solid var(--line); display: flex; align-items: center; gap: 20px; padding: 20px 25px; background: #fff; }
.play-button { display: flex; align-items: center; justify-content: center; gap: 8px; border: 0; background: var(--ink); border-radius: 8px; padding: 11px 15px; min-height: 46px; color: white; font-size: 15px; min-width: 100px; }
.play-button svg { width: 18px; height: 18px; }
.frame-controls { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.frame-button { display: grid; place-items: center; width: 44px; height: 44px; padding: 0; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink); }
.frame-button:hover:not(:disabled) { background: #f0ebfb; border-color: #c9b9e9; }
.frame-button:disabled { opacity: .35; }
.frame-controls output { min-width: 78px; text-align: center; color: var(--ink); }
.playback input { flex: 1; width: 0; accent-color: var(--ink); height: 24px; cursor: pointer; }
.playback output { font-size: 14px; font-variant-numeric: tabular-nums; color: var(--muted); white-space: nowrap; }
.speed-control { font-size: 14px; color: var(--muted); display: flex; align-items: center; gap: 10px; }
.speed-control select { border: 1px solid #cbd4e2; border-radius: 6px; font-size: 15px; padding: 9px 8px; min-height: 44px; }
.timeline-area { padding: 0 26px 16px; overflow-x: auto; }
.timeline-head { display: grid; grid-template-columns: 62px 1fr; align-items: center; padding: 7px 0 14px; font-size: 12px; color: var(--muted); }
.timeline-axis { position: relative; height: 20px; display: block; font-variant-numeric: tabular-nums; }
.timeline-axis span { position: absolute; transform: translateX(-50%); white-space: nowrap; }
.timeline-axis span:first-child { transform: none; }
.timeline-axis span:last-child { transform: translateX(-100%); }
.timeline-row { display: grid; grid-template-columns: 62px 1fr; align-items: center; margin-bottom: 10px; }
.track-label { font-size: 14px; color: var(--hand-color); font-weight: 600; }
.track { position: relative; height: 35px; background: #f0f3f7; border-radius: 4px; cursor: ew-resize; touch-action: pan-y pinch-zoom; user-select: none; -webkit-user-select: none; }
.track .action-bar { cursor: ew-resize; }
.track.is-scrubbing, .track.is-scrubbing .action-bar { cursor: grabbing; }
.action-bar { position: absolute; top: 1px; height: 33px; border: 1px solid transparent; border-radius: 4px; background: var(--hand-bg); color: var(--hand-color); padding: 3px 7px; font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: left; min-width: 2px; }
.action-bar.compact-action { color: transparent; }
.action-bar:hover, .action-bar.is-active { background: var(--hand-color); color: #fff; }
.action-bar.compact-action:hover, .action-bar.compact-action.is-active { color: transparent; }
.action-bar.is-selected { outline: 2px solid var(--ink); outline-offset: 2px; z-index: 3; }
.playhead { position: absolute; height: 39px; width: 2px; background: var(--ink); top: -2px; z-index: 4; pointer-events: none; }
.playhead:before { content: ""; position: absolute; width: 6px; height: 6px; background: var(--ink); transform: translateX(-2px) rotate(45deg); top: -3px; }
.action-picker { display: flex; align-items: center; gap: 14px; border-top: 1px solid var(--line); padding: 13px 25px; font-size: 14px; color: var(--muted); }
.action-picker select { min-width: 0; max-width: 600px; flex: 1; font-size: 14px; border: 1px solid #cbd4e2; border-radius: 6px; padding: 10px; color: var(--ink); min-height: 44px; }
.action-detail { border-top: 1px solid var(--line); padding: 14px 25px; min-height: 54px; font-size: 14px; color: var(--muted); background: #f8fafd; }
.action-detail strong { color: var(--ink); font-weight: 550; }
.media-error { position: absolute; bottom: 25px; left: 20px; right: 20px; background: #fff; color: #8d233f; padding: 16px; font-size: 15px; border-radius: 8px; }
.noscript-note { padding: 24px; font-size: 16px; }
.moment-presets { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 23px; }
.moment { border: 1px solid var(--line); border-radius: 12px; display: flex; align-items: start; gap: 15px; padding: 22px 19px; text-align: left; transition: background .2s, border-color .2s, transform .2s; min-width: 0; }
.moment:hover { background: #f4f7ff; transform: translateY(-3px); }
.moment.active { background: #eef3fd; border-color: #a4b7e0; }
.moment-index { font-size: 14px; color: #65738b; font-variant-numeric: tabular-nums; }
.moment.active .moment-index { color: var(--blue); }
.moment strong { display: block; font-size: 17px; font-weight: 600; line-height: 1.4; }
.moment small { display: block; font-size: 14px; color: var(--muted); margin-top: 7px; line-height: 1.5; }
.moment-arrow { margin-left: auto; font-size: 20px; color: #687d9a; }
.viewer-footnote { color: #637187; font-size: 14px; margin-top: 20px; }

/* Narrative content has the same generous scale as the interface. */
.intro-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 76px; align-items: end; }
.section-description { font-size: 18px; line-height: 1.8; color: var(--muted); max-width: 530px; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; margin-top: 50px; }
.principles article { border-top: 1px solid #cbd4e1; padding-top: 25px; }
.principle-number { font-size: 13px; letter-spacing: 1.3px; color: #637389; }
.principles h3 { margin: 12px 0 13px; }
.principles p { font-size: 17px; line-height: 1.75; color: var(--muted); min-height: 116px; }
.mini-visual { margin-top: 23px; min-height: 50px; display: flex; align-items: center; font-size: 16px; gap: 10px; }
.atomic-visual span { border: 1px solid #cbd5e4; padding: 6px 14px; border-radius: 5px; }
.atomic-visual b { color: #64758c; font-size: 16px; font-weight: 400; }
.time-visual { font-size: 14px; color: var(--muted); gap: 10px; }
.time-visual strong { background: #e7effe; color: var(--blue); font-size: 15px; padding: 6px 12px; border-radius: 5px; font-weight: 550; white-space: nowrap; }
.time-visual i { flex: 1; height: 1px; max-width: 24px; background: #a4b6d2; }
.hand-visual span { color: var(--hand-color); background: var(--hand-bg); padding: 6px 20px; border-radius: 5px; }
.abstract-block { margin-top: 40px; border-block: 1px solid var(--line); }
.abstract-block summary { list-style: none; padding: 24px 4px; display: flex; justify-content: space-between; cursor: pointer; font-size: 18px; font-weight: 500; }
.abstract-block summary::-webkit-details-marker { display: none; }
.abstract-block summary span { font-size: 26px; color: var(--muted); }
.abstract-block[open] summary span { transform: rotate(45deg); }
#abstract-text { font-size: 18px; color: var(--muted); line-height: 1.9; max-width: 1040px; padding: 0 4px 32px; }
.teaser-figure { margin-top: 60px; }
.teaser-figure img { width: 100%; height: auto; }
.teaser-figure figcaption { font-size: 16px; color: var(--muted); margin-top: 25px; line-height: 1.8; }
.teaser-figure figcaption strong { font-weight: 600; color: var(--ink); }
.evaluation-band { background: #f3f6fa; border-block: 1px solid #e1e7ef; padding: 90px 0; }
.evaluation-steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 42px; margin: 50px 0 0; padding: 0; }
.evaluation-steps li { position: relative; padding-right: 16px; }
.evaluation-steps li:not(:last-child):after { content: "→"; position: absolute; right: 0; top: 0; font-size: 27px; color: #6b7c94; }
.step-no { font-size: 14px; color: var(--blue); font-weight: 600; border: 1px solid #b2c7e8; border-radius: 50%; width: 38px; height: 38px; display: grid; place-items: center; margin-bottom: 20px; }
.evaluation-steps h3 { font-size: 23px; margin-bottom: 13px; }
.evaluation-steps p { font-size: 17px; line-height: 1.75; color: var(--muted); }
.evaluation-note { display: flex; gap: 27px; align-items: center; border-top: 1px solid #d2dce9; margin-top: 39px; padding-top: 24px; }
.evaluation-note span { font-size: 18px; font-weight: 650; }
.evaluation-note p { font-size: 16px; color: var(--muted); }

/* Results remain plain, readable tables rather than decorative graphics. */
.results-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 39px; border-bottom: 1px solid var(--line); }
.tabs { display: flex; gap: 30px; }
.tabs button { border: 0; border-bottom: 3px solid transparent; padding: 16px 0; color: var(--muted); font-size: 17px; font-weight: 550; white-space: nowrap; }
.tabs button[aria-selected=true] { color: var(--ink); border-bottom-color: var(--blue); }
.tabs button span { font-size: 12px; margin-left: 6px; padding: 3px 6px; color: var(--blue); background: #edf3ff; border-radius: 4px; }
.score-scale { font-size: 12px; color: #637188; letter-spacing: .6px; }
.result-takeaway { margin: 28px 0 25px; font-size: 19px; font-weight: 500; line-height: 1.6; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
table { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 16px; font-variant-numeric: tabular-nums; }
th, td { text-align: right; padding: 17px 22px; white-space: nowrap; border-bottom: 1px solid #e1e7f0; }
th:first-child, td:first-child { text-align: left; }
thead th { font-size: 14px; color: #54637b; font-weight: 550; background: #f5f7fa; }
tbody th { font-weight: 450; font-size: 16px; }
tbody tr:last-child > * { border-bottom: 0; }
tbody tr:hover > * { background: #f1f5fc; }
.ours-row th, .ours-row td { background: #eff4ff; color: #234c95; font-weight: 600; }
.reference-row th, .reference-row td { color: #606e82; background: #f7f9fb; }
.score-cell { font-weight: 650; }
.short-action { background: #eaf1fd; }
.ours-row .short-action { background: #dbe7fb; }
#overall-table { min-width: 1150px; table-layout: fixed; }
#duration-table { min-width: 760px; table-layout: fixed; }
.model-column { width: 260px; }
#panel-overall .table-scroll { max-height: min(680px, calc(100dvh - 200px)); overflow: auto; }
#overall-table th, #overall-table td { padding: 12px; }
#overall-table thead { position: sticky; top: 0; z-index: 3; }
#overall-table thead th { line-height: 20px; }
.metric-group { text-align: center; border-left: 1px solid var(--line); }
.metric-group-start { border-left: 1px solid var(--line); }
#overall-table thead tr:nth-child(2) th { text-align: right; }
.result-model { position: sticky; left: 0; z-index: 1; background: #fff; box-shadow: 1px 0 0 var(--line); }
thead .result-model { background: #f5f7fa; z-index: 2; }
.ours-row .result-model { background: #eff4ff; }
.reference-row .result-model { background: #f7f9fb; }
#overall-table .result-group th { text-align: left; padding: 10px 12px; font-size: 13px; font-weight: 600; color: var(--muted); background: #f8fafd; }
.duration-toolbar { display: flex; justify-content: space-between; gap: 20px; align-items: center; margin-bottom: 20px; font-size: 14px; color: var(--muted); }
.duration-toolbar label { display: flex; align-items: center; gap: 13px; }
.duration-toolbar select { border: 1px solid #becadc; padding: 10px 30px 10px 12px; border-radius: 7px; font-size: 16px; color: var(--ink); min-height: 44px; }
.duration-toolbar > span { display: flex; align-items: center; gap: 9px; }
.shade-key { display: inline-block; width: 15px; height: 15px; border: 1px solid #a6bee3; background: #eaf1fd; flex-shrink: 0; }
.table-note { font-size: 14px; color: var(--muted); line-height: 1.75; }
.table-note { margin-top: 20px; }
.text-button { border: 0; padding: 0; background: none; color: var(--blue); font-size: 15px; white-space: nowrap; min-height: 32px; }
.text-button span { margin-left: 7px; }
.results-source { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); margin-top: 32px; padding-top: 20px; font-size: 14px; color: #637188; }
.results-source a { color: var(--blue); white-space: nowrap; }
.error-note { border: 1px solid #e8c3c3; background: #fff5f5; padding: 20px; font-size: 16px; margin-top: 20px; }
.resources-band { background: #f5f7fa; border-top: 1px solid var(--line); padding: 88px 0; }
.resources-band h2 { font-size: clamp(32px, 3.6vw, 46px); }
.resource-list { margin-top: 39px; border-top: 1px solid #d3ddea; }
.resource-list > div { display: flex; align-items: center; gap: 30px; border-bottom: 1px solid #d3ddea; padding: 27px 0; }
.resource-no { font-size: 15px; color: #64758b; }
.resource-list h3 { font-size: 23px; font-weight: 550; }
.resource-list p { font-size: 16px; color: var(--muted); margin-top: 6px; }
.status-pill { margin-left: auto; font-size: 14px; color: #566579; border: 1px solid #c2cddd; padding: 7px 15px; border-radius: 50px; white-space: nowrap; }
.citation { display: grid; grid-template-columns: 1fr 2fr; gap: 60px; margin-top: 63px; }
.citation h3 { font-size: 28px; }
.citation p { font-size: 16px; line-height: 1.8; color: var(--muted); margin: 13px 0 22px; }
.citation pre { white-space: pre-wrap; margin: 0; background: #fff; padding: 26px 30px; border: 1px solid #d7e0ec; border-radius: 12px; font-family: "SFMono-Regular", Consolas, monospace; font-size: 14px; line-height: 1.9; overflow-wrap: anywhere; color: #405472; }
#copy-status { display: block; font-size: 14px; margin-top: 12px; color: var(--blue); }
footer { display: flex; justify-content: space-between; align-items: center; gap: 25px; min-height: 135px; }
footer .brand img { width: 200px; }
footer > a:last-child { font-size: 15px; white-space: nowrap; }

@media (max-width: 1180px) {
  .hero-grid { gap: 32px; }
  .hero-statement { font-size: 52px; }
  .hero-actions .button { font-size: 15px; padding-inline: 14px; gap: 10px; }
  .intro-grid { gap: 40px; }
  .viewer-top { grid-template-columns: minmax(0, 1.4fr) minmax(335px, 1fr); }
  .action-panel { padding: 22px; }
  .principles { gap: 28px; }
  .principles p { min-height: 148px; }
  .moment { gap: 11px; padding: 19px 16px; }
  .moment-arrow { display: none; }
  .score-scale { display: none; }
  .citation { gap: 35px; }
}
@media (max-width: 980px) {
  .playback { flex-wrap: wrap; gap: 12px; }
  .playback input { order: 5; flex-basis: 100%; }
  .wrap { width: calc(100% - 64px); }
  .site-header { padding-inline: 32px; }
  .site-header nav { gap: 23px; }
  .brand img { width: 195px; }
  .hero-grid { grid-template-columns: 1fr; max-width: 760px; }
  .hero-copy { padding: 0; }
  .hero h1 img { max-width: 510px; }
  .hero-statement { font-size: 62px; }
  .paper-title { max-width: 600px; }
  .hero-film { max-width: 760px; margin-top: 10px; }
  .hero-credits { margin-top: 34px; }
  .viewer-top { grid-template-columns: 1fr; }
  .action-panel { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; padding: 25px; }
  .action-panel-title { grid-column: 1 / -1; }
  .current-action { min-height: 145px; }
  .timeline-row, .timeline-head { min-width: 730px; }
  .intro-grid { grid-template-columns: 1fr; gap: 23px; }
  .section-description { max-width: 680px; }
  .principles p { font-size: 16px; min-height: 140px; }
  .principles h3 { font-size: 23px; }
  .mini-visual { gap: 7px; font-size: 14px; }
  .atomic-visual span, .hand-visual span { padding-inline: 9px; }
  .time-visual { gap: 5px; font-size: 12px; }
  .time-visual strong { font-size: 13px; padding-inline: 8px; }
  .section-topline p { font-size: 17px; }
  .moment strong { font-size: 16px; }
  .moment small { font-size: 13px; }
  .moment { display: block; }
  .moment-index { display: block; margin-bottom: 9px; }
  .evaluation-steps { gap: 27px; }
  .evaluation-steps h3 { font-size: 21px; }
  .citation { grid-template-columns: 1fr; gap: 25px; }
  footer { flex-wrap: wrap; padding-block: 30px; }
}
@media (max-width: 680px) {
  html { scroll-padding-top: 95px; }
  body { font-size: 16px; }
  .wrap { width: calc(100% - 40px); }
  .site-header { height: 74px; padding-inline: 20px; gap: 15px; }
  .brand img { width: 170px; }
  .site-header nav { gap: 18px; font-size: 14px; }
  .site-header nav a:nth-child(2), .site-header nav .nav-resource { display: none; }
  .hero { padding-top: 35px; }
  .hero-grid { gap: 28px; }
  .hero h1 { margin: 0 0 27px; }
  .hero h1 img { width: 100%; }
  .hero-statement { font-size: clamp(40px, 10.5vw, 62px); letter-spacing: -1.7px; line-height: 1.1; }
  .paper-title { font-size: 18px; line-height: 1.65; margin-top: 20px; }
  .hero-actions { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 23px; }
  .hero-actions .button { font-size: 16px; min-height: 52px; padding: 13px 18px; justify-content: space-between; }
  .hero-film { border-radius: 17px; margin: 0; }
  .hero-motion-toggle { bottom: 11px; right: 11px; min-width: 44px; min-height: 44px; justify-content: center; padding: 7px 10px; }
  .hero-motion-toggle .motion-label { display: none; }
  .hero-expand { bottom: 11px; left: 11px; }
  .hero-credits { margin-top: 28px; padding-block: 22px 27px; }
  .authors { font-size: 15px; line-height: 1.95; }
  .authors > span { margin: 0 7px; }
  .affiliations { font-size: 13px; line-height: 1.8; margin-top: 9px; }
  .explore { padding-top: 62px; }
  .section-topline { display: block; margin-bottom: 26px; }
  .section-topline p { font-size: 17px; margin-top: 20px; }
  h2 { font-size: 34px; letter-spacing: -1.1px; line-height: 1.2; }
  h3 { font-size: 25px; }
  .viewer { border-radius: 15px; }
  .action-panel { display: flex; gap: 17px; padding: 22px 18px; }
  .action-panel-title { margin-bottom: 2px; }
  .action-panel-title output { font-size: 23px; }
  .current-action { padding: 13px 14px; min-height: 0; }
  .hand-label { font-size: 14px; }
  .current-action p { font-size: 16px; line-height: 1.6; }
  .action-time { font-size: 13px; }
  .playback { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; padding: 16px; }
  .play-button { min-width: 86px; min-height: 44px; padding: 9px 11px; font-size: 14px; }
  .playback input { grid-column: 1 / -1; grid-row: 2; width: 100%; }
  .frame-controls { grid-column: 1 / -1; grid-row: 3; justify-content: center; }
  .playback output { font-size: 13px; text-align: center; }
  .speed-control { font-size: 0; gap: 0; }
  .speed-control select { font-size: 14px; min-height: 44px; padding: 7px 3px; }
  .timeline-area { padding: 0 16px 17px; }
  .timeline-row, .timeline-head { min-width: 650px; }
  .track { height: 40px; }
  .action-bar { height: 38px; }
  .playhead { height: 44px; }
  .timeline-head { font-size: 12px; }
  .action-picker { flex-direction: column; align-items: stretch; gap: 8px; padding: 15px 16px; font-size: 14px; }
  .action-picker select { width: 100%; font-size: 16px; flex: auto; padding: 11px 7px; }
  .action-detail { font-size: 14px; padding: 15px 16px; line-height: 1.75; }
  .moment-presets { grid-template-columns: 1fr; gap: 10px; margin-top: 18px; }
  .moment { display: flex; gap: 16px; padding: 18px; align-items: center; }
  .moment-index { margin: 0; font-size: 14px; }
  .moment strong { font-size: 17px; }
  .moment small { font-size: 14px; margin-top: 5px; }
  .moment-arrow { display: block; }
  .viewer-footnote { font-size: 14px; line-height: 1.75; margin-top: 19px; }
  .section-space { padding-block: 70px; }
  .intro-grid { gap: 23px; }
  .section-description { font-size: 17px; line-height: 1.8; }
  .principles { grid-template-columns: 1fr; gap: 29px; margin-top: 30px; }
  .principles article { padding-top: 21px; }
  .principle-number { font-size: 13px; }
  .principles h3 { font-size: 25px; }
  .principles p { min-height: 0; font-size: 17px; }
  .mini-visual { margin-top: 16px; gap: 12px; font-size: 16px; }
  .atomic-visual span, .hand-visual span { padding: 7px 15px; }
  .time-visual { font-size: 15px; }
  .time-visual strong { font-size: 15px; padding: 7px 12px; }
  .abstract-block { margin-top: 28px; }
  .abstract-block summary { font-size: 17px; padding-block: 19px; }
  #abstract-text { font-size: 17px; }
  .teaser-figure { margin-top: 32px; }
  .teaser-figure figcaption { font-size: 15px; line-height: 1.8; margin-top: 20px; }
  .evaluation-band { padding-block: 64px; }
  .evaluation-steps { grid-template-columns: 1fr; gap: 32px; margin-top: 35px; }
  .evaluation-steps li { padding: 0 0 0 53px; }
  .evaluation-steps li:not(:last-child):after { display: none; }
  .step-no { position: absolute; left: 0; top: 0; width: 34px; height: 34px; }
  .evaluation-steps p { font-size: 16px; }
  .evaluation-steps h3 { font-size: 23px; margin-bottom: 11px; }
  .evaluation-note { display: block; margin-top: 30px; padding-top: 23px; }
  .evaluation-note p { margin-top: 10px; font-size: 16px; }
  .results-toolbar { margin-top: 27px; }
  .tabs { gap: 23px; }
  .tabs button { font-size: 15px; padding-block: 13px; white-space: normal; text-align: left; }
  .tabs button span { display: none; }
  .result-takeaway { font-size: 17px; line-height: 1.75; margin: 24px 0 20px; }
  th, td { padding: 14px 15px; font-size: 15px; }
  tbody th { font-size: 15px; }
  thead th { font-size: 13px; }
  #overall-table { min-width: 1060px; }
  #duration-table { min-width: 670px; }
  .model-column { width: 170px; }
  .result-model { white-space: normal; overflow-wrap: anywhere; }
  .text-button { margin-top: 14px; font-size: 16px; min-height: 44px; }
  .duration-toolbar { display: block; }
  .duration-toolbar > span { font-size: 14px; margin-top: 16px; }
  .results-source { flex-direction: column; gap: 12px; margin-top: 26px; font-size: 14px; }
  .resources-band { padding: 64px 0; }
  .resources-band h2 { font-size: 34px; }
  .resource-list > div { gap: 15px; padding: 24px 0; flex-wrap: wrap; }
  .resource-list > div > div { flex: 1; min-width: 0; }
  .resource-list p { font-size: 15px; }
  .resource-list h3 { font-size: 22px; }
  .resource-no { font-size: 13px; }
  .status-pill { font-size: 12px; padding: 5px 10px; margin-left: 29px; }
  .citation { grid-template-columns: 1fr; gap: 23px; margin-top: 42px; }
  .citation p { font-size: 16px; margin-block: 12px 17px; }
  .citation pre { font-size: 13px; padding: 22px 16px; line-height: 1.85; }
  footer { flex-wrap: wrap; min-height: 150px; padding-block: 30px; gap: 21px; }
  footer .brand img { width: 180px; }
  footer > a:last-child { font-size: 14px; }
}
@media (max-width: 370px) {
  .wrap { width: calc(100% - 32px); }
  .site-header { padding-inline: 16px; gap: 12px; }
  .brand img { width: 145px; }
  .site-header nav { gap: 13px; font-size: 13px; }
  .playback { gap: 8px; padding-inline: 12px; }
  .play-button { min-width: 76px; font-size: 13px; }
  .playback output { font-size: 12px; }
  .moment-arrow { display: none; }
  footer .brand img { width: 150px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *:before, *:after { transition: none !important; animation: none !important; }
}