/* Six purpose-built study layouts. Scientific media and results are placeholders. */
.paper-project {
  --lab-ink: #eeede7;
  --lab-muted: #bdc7bd;
  --lab-faint: #9da99f;
  --lab-panel: #3b343d;
  --lab-panel-deep: #322c34;
  --lab-line: #ffffff25;
  --lab-accent: var(--paper-accent);
  --lab-content-max: 1280px;
  --lab-section-space: clamp(40px, 4.5vw, 64px);
  --lab-heading-gap: 24px;
  --lab-subtitle-size: clamp(18px, calc(2px + 1.2vw), 20px);
}

/* Ball accents within each demonstration. */
#dynamics-gap { --lab-accent: var(--ball-blue); }
#calibration-loop { --lab-accent: var(--ball-yellow); }
#prediction-results { --lab-accent: var(--ball-red); }
#real-table { --lab-accent: var(--ball-purple); }
#limitations { --lab-accent: var(--ball-orange); }

/* Keep navigation accents tied to their sections. */
.lab-index-links a[data-section-link="dynamics-gap"] { --lab-accent: var(--ball-blue); }
.lab-index-links a[data-section-link="calibration-loop"] { --lab-accent: var(--ball-red); }
.lab-index-links a[data-section-link="prediction-results"] { --lab-accent: var(--ball-purple); }
.lab-index-links a[data-section-link="limitations"] { --lab-accent: var(--ball-orange); }
.lab-index-links a[data-section-link="project-video"] { --lab-accent: var(--ball-green); }

.lab-section, .lab-index, .lab-footer { pointer-events: auto; }
.lab-section *, .lab-index *, .lab-footer * { box-sizing: border-box; }
.lab-section button, .lab-index, .lab-footer button { font-family: 'Geist Wght', sans-serif; }
.lab-section button { cursor: pointer; }
/* Selection controls default to CUE green; calibration stages set their own accents. */
.lab-section button[aria-pressed], .lab-section button[role="tab"] { --lab-accent: var(--paper-accent); }
.lab-section button:focus-visible, .lab-index a:focus-visible, .lab-footer a:focus-visible, .lab-footer button:focus-visible {
  outline: 2px solid var(--lab-ink);
  outline-offset: 5px;
}
.lab-section button, .lab-index a, .lab-footer a { -webkit-tap-highlight-color: transparent; }
.lab-index a, .lab-footer a { color: var(--lab-ink); }

.lab-shell {
  width: calc(100% - 2 * var(--content-padding));
  max-width: var(--lab-content-max);
  margin-inline: auto;
}
.lab-section {
  border-right: var(--border-main);
  border-bottom: var(--border-main);
  color: var(--lab-ink);
  scroll-margin-top: 84px;
}
.lab-section > .lab-shell { padding-block: var(--lab-section-space); }
.lab-section-muted { background: #0000000c; }

.lab-index {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 26px;
  min-height: 64px;
  padding: 0 var(--content-padding);
  border-top: var(--border-main);
  border-left: var(--border-main);
  border-right: var(--border-main);
  border-bottom: var(--border-main);
  background: color-mix(in srgb, var(--paper-charcoal) 96%, transparent);
  backdrop-filter: blur(18px);
}
.lab-index-brand { display: flex; align-items: center; align-self: stretch; flex: 0 0 auto; line-height: 1; }
.lab-index-brand img { display: block; width: 96px; height: 48px; object-fit: contain; }
.lab-index-links { display: flex; align-items: stretch; flex: 1; min-width: 0; gap: 25px; overflow-x: auto; scrollbar-width: none; }
.lab-index-links::-webkit-scrollbar { display: none; }
.lab-index-links a {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 7px;
  min-height: 63px;
  border-bottom: 2px solid transparent;
  font-size: 14px;
  color: var(--lab-muted);
  white-space: nowrap;
  transition: color .2s, border-color .2s;
}
.lab-index-links a > span { font-size: 14px; color: var(--lab-faint); }
.lab-index-links a:hover, .lab-index-links a.is-active { color: var(--lab-ink); border-color: var(--lab-accent); }
.lab-preview-label { display: inline-flex; align-items: center; gap: 8px; flex: 0 0 auto; font-size: 14px; color: var(--lab-muted);   }
.lab-preview-label i { width: 5px; height: 5px; background: var(--lab-accent); border-radius: 50%; }

.lab-section-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin: 0 0 var(--lab-heading-gap); text-align: left; }
.lab-heading-copy { min-width: 0; width: 100%; }
.lab-section-intro { max-width: 76ch; margin: 12px 0 0; color: var(--lab-muted); font-size: var(--lab-subtitle-size); line-height: 1.65; text-wrap: pretty; }
.lab-eyebrow, .lab-micro, .lab-outline-tag, .lab-frame-tag, .lab-frame-code, .lab-frame-center,
.lab-caption-slot, .lab-workspace-caption, .lab-panel-topline, .lab-plan-bottom,
.lab-list-heading, .lab-list-footnote, .lab-selection-strip, .lab-condition-current,
.lab-result-placeholder, .lab-demo-center-label, .lab-demo-bottom,
.lab-case-copy .lab-note-preview {
  font-family: 'Geist Wght', sans-serif;
}
.lab-eyebrow { display: flex; align-items: center; gap: 11px; margin-bottom: 18px; color: var(--lab-muted); font-size: 14px; line-height: 1.5;   }
.lab-eyebrow > span:first-child { color: var(--lab-accent); }
.lab-title { max-width: 32ch; margin: 0; color: var(--lab-ink); font-size: clamp(28px, calc(20px + 1.75vw), 48px); font-weight: 400; letter-spacing: -.035em; line-height: 1.13; text-wrap: balance; }
.lab-heading-symbol { padding-right: 10px; font-size: 48px; color: var(--lab-accent); font-weight: 200; }
.lab-micro { color: var(--lab-muted); font-size: 14px; line-height: 1.5;   }
.lab-tool-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 18px; }
.lab-tabs { display: inline-flex; flex-wrap: wrap; gap: 20px; }
.lab-tab { min-height: 44px; padding: 8px 0; border: 0; background: transparent; color: var(--lab-muted); font-size: 14px; line-height: 1.5; transition: background .2s, color .2s; }
.lab-tab:hover { color: var(--lab-ink); }
.lab-tab.is-active { color: var(--lab-ink); background: transparent; box-shadow: inset 0 -2px var(--lab-accent); }
/* Shared framed controls for example selection and real/simulation views. */
.lab-tabs.lab-tabs-framed { flex: 0 0 auto; flex-wrap: nowrap; gap: 2px; padding: 3px; border: 1px solid var(--lab-line); }
.lab-tabs-framed .lab-tab { padding: 8px 18px; white-space: nowrap; }
.lab-tabs-framed .lab-tab:hover { background: #ffffff08; }
.lab-tabs-framed .lab-tab.is-active { background: var(--lab-accent); color: var(--paper-accent-ink); box-shadow: none; }

.lab-pair-label { display: flex; align-items: center; gap: 8px; }
.lab-sync-icon { font-size: 20px; font-family: sans-serif; line-height: 1; }

.lab-comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 0; background: transparent; }
.lab-comparison .lab-frame { aspect-ratio: 10 / 7; background: transparent; }
.lab-comparison video[data-loop-video] { background: var(--paper-charcoal); mask-image: linear-gradient(90deg, transparent, #000 3%, #000 97%, transparent), linear-gradient(0deg, transparent, #000 3%, #000 97%, transparent); mask-composite: intersect; }
.paper-project video[data-alpha-packed] { opacity: 0 !important; background: transparent !important; mask-image: none; }
.lab-alpha-canvas, .lab-alpha-poster { position: absolute; inset: 0; display: block; width: 100%; height: 100%; object-fit: contain; pointer-events: none; background: transparent; }
.lab-alpha-canvas { opacity: 0; }
.has-alpha-frame > .lab-alpha-canvas { opacity: 1; }
.has-alpha-frame > .lab-alpha-poster { visibility: hidden; }
.has-alpha-video > .lab-frame-center { visibility: hidden; }
.lab-comparison .lab-frame-tag, .lab-comparison .lab-frame-code { color: #eeede7; padding: 7px 10px; background: #22231fd9; backdrop-filter: blur(8px); }
.lab-comparison .lab-frame-tag { top: 16px; left: 16px; }
.lab-comparison .lab-frame-code { bottom: 16px; left: 16px; }
.lab-gap-toolbar { justify-content: flex-start; gap: 28px; }
.lab-gap-toolbar .lab-tabs { flex: 0 0 auto; flex-wrap: nowrap; }
.lab-gap-status { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.lab-frame { position: relative; aspect-ratio: 16 / 9; min-width: 0; overflow: hidden; background: radial-gradient(ellipse at 50% 45%, #ffffff03, transparent 70%), var(--lab-panel-deep); }
.lab-frame-simulation { background-image: linear-gradient(125deg, color-mix(in srgb, var(--lab-accent) 4%, transparent), transparent 65%); }
.lab-frame-tag { position: absolute; top: 20px; left: 20px; display: flex; align-items: center; gap: 8px; color: var(--lab-muted); font-size: 14px; z-index: 1; }
.lab-frame-tag i { width: 5px; height: 5px; border: 1px solid var(--lab-muted); border-radius: 50%; }
.lab-frame-simulation .lab-frame-tag i { border-color: var(--lab-accent); background: var(--lab-accent); }
.lab-frame-center { pointer-events: none; position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 13px; padding: 54px 20px; text-align: center; }
.lab-placeholder-label { display: none; color: var(--lab-muted); font-size: 14px; }
.lab-placeholder-meta { color: var(--lab-faint); font-size: 14px;  }
.lab-frame-code { position: absolute; bottom: 19px; left: 20px; color: var(--lab-faint); font-size: 14px; line-height: 1.5;   }
.lab-caption-slot { display: flex; align-items: center; gap: 12px; margin-top: 24px; color: var(--lab-faint); font-size: 14px; }
.lab-small-cross { color: var(--lab-accent); font-size: 17px; font-weight: 200; }
.lab-caption-line { display: block; width: 100px; height: 1px; background: #ffffff14; }

.lab-loop-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, .43fr); gap: 28px; }
.lab-loop-workspace { min-width: 0; }
.lab-loop-frame { aspect-ratio: 16 / 10; background-image: linear-gradient(135deg, #ffffff02, transparent 65%), linear-gradient(0deg, color-mix(in srgb, var(--lab-accent) 5%, transparent), transparent 40%); }
.lab-loop-frame .lab-placeholder-label { display: block; }
.lab-workspace-caption { display: flex; align-items: center; gap: 14px; min-height: 50px; border: 1px solid var(--lab-line); border-top: 0; padding: 12px 18px; color: var(--lab-muted); font-size: 14px; }
.lab-workspace-caption .lab-micro { margin-left: auto; font-size: 14px; }
.lab-stage-status { color: var(--lab-accent); font-size: 14px; }
.lab-step-list { display: grid; grid-template-rows: repeat(4, 1fr); border-top: 1px solid var(--lab-line); }
.lab-step { position: relative; display: flex; align-items: center; gap: 18px; width: 100%; border: 0; border-bottom: 1px solid var(--lab-line); padding: 23px 20px; background: transparent; color: var(--lab-muted); text-align: left; transition: color .2s, background .2s; }
.lab-step-number { font-size: 14px; color: var(--lab-faint); }
.lab-step-label { font-family: 'Geist Wght', sans-serif; font-size: 18px; }
.lab-step-arrow { margin-left: auto; color: var(--lab-faint); font-size: 15px; }
.lab-step:hover { color: var(--lab-ink); background: #ffffff04; }
.lab-step.is-active { color: var(--lab-ink); background: transparent; }
.lab-step.is-active .lab-step-label { font-weight: 600; }
.lab-step.is-active .lab-step-number, .lab-step.is-active .lab-step-arrow { color: color-mix(in srgb, var(--lab-accent) 80%, white); }

.lab-planner { display: grid; grid-template-columns: minmax(0, 1fr) 270px; border: 1px solid var(--lab-line); }
.lab-plan-canvas { display: flex; flex-direction: column; min-width: 0; background: var(--lab-panel-deep); }
.lab-panel-topline { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 57px; padding: 17px 22px; }
.lab-outline-tag { display: inline-flex; padding: 3px 6px; border: 1px solid #ffffff1b; color: var(--lab-faint); font-size: 14px; line-height: 1.3;   }
.lab-planning-svg { display: block; width: 100%; height: clamp(300px, 27vw, 450px); margin-block: auto; padding-inline: 15px; color: #c9c7bc; }
.lab-candidate-path { stroke: #ffffff20; stroke-width: 1; stroke-dasharray: 4 6; transition: stroke .25s, opacity .25s; }
.lab-candidate-path.is-active { stroke: var(--lab-accent); stroke-width: 1.5; stroke-dasharray: none; }
.lab-plan-bottom { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 15px 22px; border-top: 1px solid #ffffff0b; }
.lab-plan-current { font-size: 14px; color: var(--lab-faint); }
.lab-plan-current b { font-weight: 400; color: var(--lab-accent); }
.lab-candidate-list { border-left: 1px solid var(--lab-line); display: flex; flex-direction: column; }
.lab-list-heading { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 22px; color: var(--lab-muted); font-size: 14px; line-height: 1.5; }
.lab-candidate-list > .lab-list-heading { border-bottom: 1px solid var(--lab-line); }
.lab-candidate { display: flex; align-items: center; gap: 17px; flex: 1; width: 100%; min-height: 77px; padding: 18px 22px; border: 0; border-bottom: 1px solid var(--lab-line); background: transparent; color: var(--lab-muted); text-align: left; transition: background .2s, color .2s; }
.lab-candidate-number { color: var(--lab-faint); font-size: 14px; }
.lab-candidate-copy { display: grid; gap: 12px; font-size: 14px; }
.lab-mini-bars { display: flex; gap: 4px; }
.lab-mini-bars i { width: 14px; height: 2px; background: #ffffff19; }
.lab-candidate-select { margin-left: auto; font-size: 17px; color: var(--lab-faint); }
.lab-candidate:hover, .lab-candidate.is-active { color: var(--lab-ink); }
.lab-candidate.is-active .lab-candidate-number, .lab-candidate.is-active .lab-candidate-select { color: var(--lab-accent); }
.lab-candidate.is-active .lab-mini-bars i { background: color-mix(in srgb, var(--lab-accent) 40%, transparent); }
.lab-list-footnote { padding: 18px 22px; color: var(--lab-faint); font-size: 14px; line-height: 1.6; }
.lab-selection-strip { display: grid; grid-template-columns: 1fr 1fr 1.5fr auto; border: 1px solid var(--lab-line); border-top: 0; }
.lab-selection-strip > div { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 18px 22px; border-right: 1px solid var(--lab-line); }
.lab-selection-strip span { color: var(--lab-muted); font-size: 14px; }
.lab-selection-strip strong { color: var(--lab-faint); font-size: 16px; font-weight: 400; }
.lab-selection-strip .lab-selection-marker { align-self: center; padding-inline: 22px; color: var(--lab-accent); font-size: 24px; }

.lab-results-layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 24px; }
.lab-results-chart { display: flex; flex-direction: column; min-width: 0; border: 1px solid var(--lab-line); background: var(--lab-panel-deep); }
.lab-chart-svg { display: block; flex: 1; width: 100%; min-height: 260px; color: #e0ded4; }
.lab-chart-placeholder { font-family: 'Geist Wght', sans-serif; font-size: 32px; fill-opacity: .6; }
.lab-chart-placeholder-small { font-family: 'Geist Wght', sans-serif; font-size: 14px; fill-opacity: .32; }
.lab-chart-axis { font-family: 'Geist Wght', sans-serif; font-size: 14px; fill-opacity: .4; }
.lab-chart-cursor { transition: transform .3s; }
.lab-checkpoints { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px; padding: 12px; border-top: 1px solid var(--lab-line); }
.lab-checkpoints .lab-tab { min-height: 34px; font-size: 14px; padding: 8px 13px; }
.lab-conditions { border-top: 1px solid var(--lab-line); }
.lab-conditions .lab-list-heading { padding-inline: 0; }
.lab-condition-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; }
.lab-condition { height: 36px; padding: 0; border: 1px solid var(--lab-line); background: transparent; color: var(--lab-faint); font-size: 14px; transition: color .2s, background .2s, border-color .2s; }
.lab-condition:hover { color: var(--lab-ink); border-color: #ffffff55; }
.lab-condition.is-active { background: color-mix(in srgb, var(--lab-accent) 26%, transparent); color: var(--lab-ink); border-color: var(--lab-accent); }
.lab-condition-current { display: flex; align-items: center; gap: 7px; padding-block: 16px; color: var(--lab-muted); font-size: 14px; }
.lab-condition-current > span:last-child { margin-left: auto; color: var(--lab-accent); }
.lab-result-placeholder { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-block: 16px; border-top: 1px solid var(--lab-line); }
.lab-result-placeholder > span { color: var(--lab-muted); font-size: 14px; }
.lab-result-placeholder strong { font-size: 26px; font-weight: 300; color: var(--lab-faint); }
.lab-result-placeholder small { font-size: 14px; margin-left: 10px; }
.lab-replay-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-block: 28px 13px; }
.lab-replay-heading .lab-micro:last-child { font-size: 14px; color: var(--lab-faint); }
.lab-results-replays { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--lab-line); }
.lab-results-replays .lab-frame { aspect-ratio: 16 / 9; }
.lab-results-replays .lab-frame-tag { font-size: 14px; top: 15px; left: 15px; }
.lab-results-replays .lab-frame-code { font-size: 14px; bottom: 15px; left: 15px; }
.lab-results-replays .lab-placeholder-meta { font-size: 14px; }

.lab-hover-hint {  letter-spacing: 0; text-align: right; font-size: 14px; }
.lab-hover-hint > span { margin-left: 7px; color: var(--lab-accent); }
.lab-demo-layout { display: grid; grid-template-columns: 1fr; }
.lab-demo-window { position: relative; overflow: hidden; height: clamp(440px, 76svh, 1000px); min-width: 0; background: var(--lab-panel-deep); touch-action: pan-y; --lens-x: 50%; --lens-y: 50%; --lens-size: clamp(100px, 11vw, 175px); }
.lab-demo-real, .lab-demo-simulation { position: absolute; inset: 0; }
.lab-demo-real { background: radial-gradient(ellipse at 50% 55%, #ffffff02, transparent 75%); }
.lab-demo-outline { position: absolute; inset: 0; width: 100%; height: 100%; padding: 20px; color: #e5e2d5; opacity: .17; }
.lab-demo-center-label { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); color: var(--lab-faint); font-size: 14px; text-align: center; white-space: nowrap; padding: 9px 12px; background: var(--lab-panel-deep); }
.lab-demo-bottom { position: absolute; bottom: 0; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 22px; color: var(--lab-faint); font-size: 14px; }
.lab-demo-simulation { pointer-events: none; clip-path: circle(0px at var(--lens-x) var(--lens-y)); background-color: #302c3c; background-image: linear-gradient(#ffffff05 1px, transparent 1px), linear-gradient(90deg, #ffffff05 1px, transparent 1px); background-size: 22px 22px; transition: clip-path .15s ease-out; }
.lab-demo-simulation .lab-demo-outline { color: #d6bde4; opacity: .65; }
.lab-demo-simulation .lab-demo-center-label { background: #302c3c; color: #decbe9; }
.lab-demo-simulation .lab-micro, .lab-demo-simulation .lab-demo-bottom { color: #d0b7df; }
.lab-demo-window.is-revealing .lab-demo-simulation { clip-path: circle(var(--lens-size) at var(--lens-x) var(--lens-y)); }
.lab-demo-window.is-simulation .lab-demo-simulation { clip-path: inset(0); }
.lab-lens-ring { pointer-events: none; position: absolute; left: var(--lens-x); top: var(--lens-y); width: calc(var(--lens-size) * 2); height: calc(var(--lens-size) * 2); transform: translate(-50%, -50%); border: 1px solid #d6bde466; border-radius: 50%; opacity: 0; transition: opacity .15s; }
.lab-demo-window.is-revealing:not(.is-simulation) .lab-lens-ring { opacity: 1; }
.lab-section-immersive > .lab-shell { width: 100%; max-width: none; padding-bottom: 0; }
.lab-section-immersive .lab-section-heading, .lab-section-immersive .lab-tool-row, .lab-section-immersive .lab-caption-slot { width: calc(100% - 2 * var(--content-padding)); max-width: var(--lab-content-max); margin-inline: auto; }
.lab-section-immersive .lab-caption-slot { padding-bottom: clamp(52px, 5.5vw, 88px); }
.lab-session { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--lab-line); }
.lab-session-item { position: relative; display: flex; align-items: center; gap: 13px; flex: 1; width: 100%; min-height: 66px; padding: 18px 24px; border: 0; border-right: 1px solid var(--lab-line); background: transparent; color: var(--lab-muted); text-align: left; transition: color .2s, background .2s; }
.lab-session-number { color: var(--lab-faint); font-size: 14px; }
.lab-session-copy { display: flex; flex-direction: column; gap: 9px; color: inherit; font-size: 14px; }
.lab-session-item:last-child { border-right: 0; }
.lab-session-arrow { margin-left: auto; color: var(--lab-faint); font-size: 14px; }
.lab-session-item:hover, .lab-session-item.is-active { background: color-mix(in srgb, var(--lab-accent) 12%, transparent); color: var(--lab-ink); }
.lab-session-item.is-active .lab-session-number { color: var(--lab-accent); }

.lab-case-filmstrip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 26px; }
.lab-case-thumb { min-width: 0; padding: 0; border: 1px solid var(--lab-line); background: transparent; color: var(--lab-muted); text-align: left; transition: border-color .2s, background .2s; }
.lab-case-thumb-image { position: relative; display: flex; align-items: center; justify-content: center; aspect-ratio: 2.5; border-bottom: 1px solid var(--lab-line); background: var(--lab-panel-deep); }
.lab-case-cross { color: #ffffff25; font-size: 29px; font-weight: 200; }
.lab-thumb-corner { position: absolute; bottom: 10px; left: 12px; color: var(--lab-faint); font-size: 14px; }
.lab-case-thumb-label { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 13px 14px; font-size: 14px; }
.lab-case-thumb-label > span { color: var(--lab-faint); }
.lab-case-thumb:hover { border-color: #ffffff55; }
.lab-case-thumb.is-active { border-color: var(--lab-accent); background: color-mix(in srgb, var(--lab-accent) 13%, transparent); color: var(--lab-ink); }
.lab-case-thumb.is-active .lab-case-cross, .lab-case-thumb.is-active .lab-case-thumb-label > span { color: var(--lab-accent); }
.lab-case-detail { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 44px; align-items: center; }
.lab-case-frame { aspect-ratio: 16 / 11; }
.lab-case-copy { min-width: 0; padding-block: 10px; }
.lab-case-copy .lab-eyebrow { margin-bottom: 16px; }
.lab-case-copy h3 { color: var(--lab-ink); font-size: clamp(24px, 2.3vw, 32px); letter-spacing: -.025em; line-height: 1.2; }
.lab-note-block { margin-top: 26px; }
.lab-note-preview { display: grid; gap: 9px; padding-top: 13px; }
.lab-note-preview > span { display: block; width: 90%; height: 3px; background: #ffffff13; }
.lab-note-preview > span:nth-child(even) { width: 65%; }
.lab-text-button { display: inline-flex; justify-content: space-between; align-items: center; gap: 35px; min-height: 40px; margin-top: 30px; padding: 0 0 4px; border: 0; border-bottom: 1px solid #ffffff50; background: transparent; color: var(--lab-muted); font-size: 14px; transition: color .2s; }
.lab-text-button:hover { color: var(--lab-ink); }
.lab-text-button > span { color: var(--lab-accent); }
.lab-case-notes .lab-eyebrow { margin-top: 22px; }
.lab-case-notes > .lab-note-preview { margin-block: 30px; }
.lab-case-notes .lab-placeholder-copy { color: var(--lab-faint); font-family: 'Geist Wght', sans-serif; font-size: 14px; }

.lab-footer { --lab-ink: var(--paper-accent-ink); --lab-muted: #203c2d; border-right: var(--border-main); border-bottom: var(--border-main); background: var(--paper-accent); color: var(--lab-ink); }
.lab-footer-main { display: flex; flex-direction: column; align-items: center; padding-block: clamp(48px, 5vw, 72px); text-align: center; }
.lab-footer-identity { display: flex; flex-direction: column; align-items: center; gap: 8px; margin-bottom: 16px; }
.lab-footer-brand { display: flex; flex-direction: column; align-items: center; gap: 10px; margin: 0; color: var(--lab-muted); }
.lab-footer-acronym { font-family: 'Geist Wght', sans-serif; color: var(--lab-muted); font-size: 16px; line-height: 1.45; }
.lab-footer-paper { display: flex; flex-direction: column; align-items: center; width: 100%; }
.lab-footer-venue { margin: 12px 0 0; font-family: 'Geist Wght', sans-serif; font-size: 14px; line-height: 1.6;   color: var(--lab-muted); }
.lab-footer-paper-title { max-width: 32ch; margin: 0; color: var(--lab-ink); font-size: clamp(30px, 3vw, 44px); line-height: 1.15; letter-spacing: -.03em; text-wrap: balance; }
.lab-footer-byline { display: grid; gap: 10px; margin-top: 16px; }
.lab-footer-byline .paper-authors, .lab-footer-byline .paper-affiliations { justify-content: center; }
.lab-footer-byline .paper-authors { column-gap: 25px; color: var(--lab-ink); font-size: 16px; }
.lab-footer-byline .paper-authors {
  --author-yellow: #4b3b00;
  --author-blue: #123468;
  --author-red: #721b21;
  --author-purple: #4e246f;
  --author-orange: #5c2700;
}
.lab-footer-byline .paper-affiliations, .lab-footer-byline .paper-contributions { color: var(--lab-muted); font-size: 14px; }
.lab-footer-byline sup { margin-left: 2px; font-size: .65em; }
.lab-resource-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 24px; }
.lab-resource-links button, .lab-resource-links a { display: inline-flex; justify-content: center; align-items: center; gap: 20px; min-width: 112px; min-height: 47px; padding: 13px 21px; border: 1px solid color-mix(in srgb, var(--lab-ink) 45%, transparent); background: transparent; color: var(--lab-ink); opacity: 1; font-family: 'Geist Wght', sans-serif; font-size: 14px; line-height: 1.5; }
.lab-resource-links button { cursor: default; }
.lab-resource-links a { transition: background .2s, border-color .2s; }
.lab-resource-links a:hover { background: #ffffff12; border-color: var(--lab-ink); }
.lab-resource-links .lab-resource-primary { background: var(--lab-ink); border-color: var(--lab-ink); color: var(--paper-accent); }
.lab-resource-links button > span, .lab-resource-links a > span { font-size: 14px; }
.lab-citation { --lab-ink: #eeede7; --lab-muted: #bdc7bd; width: min(100%, 840px); margin-top: 40px; padding: 25px 28px 28px; border: 1px solid #ffffff35; background: var(--lab-panel-deep); text-align: left; }
.lab-citation-header { display: flex; justify-content: space-between; align-items: center; gap: 15px; margin-bottom: 20px; }
.lab-citation-header h3 { display: flex; flex-wrap: wrap; align-items: center; gap: 13px; color: var(--lab-ink); font-family: 'Geist Wght', sans-serif; font-size: 14px; scroll-margin-top: 84px; }
.lab-citation-placeholder { color: var(--lab-faint); font-size: 14px;   }
.lab-copy-citation { display: inline-flex; justify-content: center; align-items: center; gap: 12px; min-width: 78px; min-height: 35px; padding: 7px 11px; border: 1px solid var(--lab-line); background: transparent; color: var(--lab-muted); font-size: 14px; line-height: 1.5; cursor: pointer; transition: color .2s, border-color .2s; }
.lab-copy-citation:hover { border-color: #ffffff70; color: var(--lab-ink); }
.lab-copy-citation svg { width: 14px; height: 14px; }
.lab-citation-code { max-width: 100%; margin: 0; padding: 0; overflow-wrap: anywhere; white-space: pre-wrap; color: #dedbd1; font-family: 'Geistmono Wght', monospace; font-size: 14px; line-height: 1.9; tab-size: 2; }
.lab-citation-code code { padding: 0; background: transparent; color: inherit; font: inherit; }
.lab-copy-status { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

@media (min-width: 1600px) {
  .lab-index { gap: 40px; }
  .lab-index-links { gap: 36px; }
  .lab-index-links a { font-size: 14px; }
  .lab-planner { grid-template-columns: minmax(0, 1fr) 310px; }
  .lab-results-layout { grid-template-columns: minmax(0, 1fr) 310px; }
}
@media (max-width: 1100px) {
  .lab-preview-label { display: none; }
  .lab-index-links { gap: 21px; }
}
@media (max-width: 991px) {
  .lab-index { gap: 22px; padding-inline: 28px; }
  .lab-loop-layout { gap: 20px; grid-template-columns: minmax(0, 1fr) 215px; }
  .lab-step { padding-inline: 17px; gap: 13px; }
  .lab-step-label { font-size: 16px; }
  .lab-planner { grid-template-columns: minmax(0, 1fr) 215px; }
  .lab-candidate { padding-inline: 18px; gap: 12px; }
  .lab-planning-svg { min-height: 295px; padding-inline: 0; }
  .lab-results-layout { grid-template-columns: minmax(0, 1fr) 210px; gap: 20px; }
  .lab-condition { height: 34px; }
  .lab-session-item { padding-inline: 16px; gap: 9px; }
  .lab-session-copy { font-size: 14px; }
  .lab-hover-hint { max-width: 240px; }
  .lab-case-detail { gap: 28px; }
  .lab-case-copy h3 { font-size: 25px; }
  .lab-note-block { margin-top: 20px; }
}
@media (max-width: 767px) {
  .paper-project { --lab-section-space: 40px; --lab-heading-gap: 20px; }
  .lab-section-immersive > .lab-shell { padding-bottom: 0; }
  .lab-section-immersive .lab-caption-slot { padding-bottom: 46px; }
  .lab-index { gap: 18px; padding-inline: 20px; min-height: 58px; }
  .lab-index-brand img { width: 80px; height: 40px; }
  .lab-index-links { gap: 23px; }
  .lab-index-links a { min-height: 57px; font-size: 14px; }
  .lab-section { scroll-margin-top: 80px; }
  .lab-eyebrow { margin-bottom: 14px; font-size: 14px; gap: 9px; }
  .lab-heading-symbol { font-size: 36px; padding-right: 0; }
  .lab-tool-row { align-items: flex-start; gap: 12px; }
  .lab-pair-label { font-size: 14px; padding-top: 12px; }
  .lab-pair-label .lab-sync-icon { font-size: 17px; }
  .lab-tabs { gap: 18px; }
  .lab-tab { padding: 8px 0; font-size: 14px; min-height: 44px; }
  .lab-comparison { grid-template-columns: 1fr; gap: 0; }
  .lab-comparison .lab-frame { aspect-ratio: 10 / 7; }
  .lab-gap-toolbar { flex-direction: column; }
  .lab-frame-tag { top: 14px; left: 13px; font-size: 14px; gap: 6px; }
  .lab-frame-center { gap: 11px; padding-inline: 10px; }
  .lab-placeholder-meta { font-size: 14px; }
  .lab-frame-code { left: 13px; bottom: 13px; font-size: 14px; }
  .lab-caption-slot { font-size: 14px; gap: 10px; margin-top: 18px; }
  .lab-caption-line { width: 60px; }
  .lab-loop-layout { grid-template-columns: 1fr; gap: 16px; }
  .lab-loop-frame { aspect-ratio: 4 / 3; }
  .lab-step-list { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: auto; border: 1px solid var(--lab-line); border-bottom: 0; }
  .lab-step { min-height: 73px; padding: 20px 15px; gap: 12px; }
  .lab-step:nth-child(odd) { border-right: 1px solid var(--lab-line); }
  .lab-step-label { font-size: 16px; }
  .lab-step-arrow { font-size: 14px; }
  .lab-workspace-caption { min-height: 47px; padding-inline: 13px; font-size: 14px; }
  .lab-workspace-caption .lab-micro { font-size: 14px; }
  .lab-planner { grid-template-columns: 1fr; }
  .lab-panel-topline { min-height: 50px; padding: 16px; }
  .lab-planning-svg { height: auto; min-height: 0; padding-inline: 0; }
  .lab-plan-bottom { padding: 13px 16px; }
  .lab-plan-bottom .lab-micro { font-size: 14px; }
  .lab-candidate-list { border-left: 0; border-top: 1px solid var(--lab-line); }
  .lab-candidate-list .lab-list-heading { padding: 16px; }
  .lab-candidate { min-height: 65px; padding: 15px 16px; }
  .lab-candidate-copy { display: flex; flex: 1; align-items: center; justify-content: space-between; gap: 12px; }
  .lab-mini-bars { margin-left: auto; }
  .lab-mini-bars i { width: 8px; }
  .lab-list-footnote { padding: 15px 16px; font-size: 14px; }
  .lab-selection-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lab-selection-strip > div { flex-direction: column; align-items: flex-start; gap: 12px; padding: 16px 12px; }
  .lab-selection-strip > div:last-of-type { border-right: 0; }
  .lab-selection-strip span { font-size: 14px; }
  .lab-selection-strip .lab-selection-marker { display: none; }
  .lab-results-layout { grid-template-columns: 1fr; gap: 20px; }
  .lab-chart-svg { min-height: 210px; }
  .lab-conditions { display: grid; grid-template-columns: 1fr 1fr; align-items: center; column-gap: 18px; }
  .lab-conditions > .lab-list-heading { grid-column: 1 / -1; padding-block: 17px; }
  .lab-condition-grid { grid-column: 1 / -1; gap: 7px; }
  .lab-condition { height: 39px; font-size: 14px; }
  .lab-condition-current { font-size: 14px; }
  .lab-result-placeholder { gap: 8px; border-top: 0; padding-block: 13px; }
  .lab-result-placeholder > span { font-size: 14px; }
  .lab-result-placeholder strong { font-size: 21px; }
  .lab-result-placeholder small { font-size: 14px; margin-left: 6px; }
  .lab-replay-heading { padding-top: 20px; }
  .lab-replay-heading .lab-micro { font-size: 14px; }
  .lab-replay-heading .lab-micro:last-child { font-size: 14px; }
  .lab-results-replays { display: flex; gap: 1px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: thin; scrollbar-color: var(--lab-faint) transparent; padding-bottom: 9px; }
  .lab-results-replays .lab-frame { flex: 0 0 84%; aspect-ratio: 16 / 10; scroll-snap-align: start; }
  .lab-results-replays .lab-frame-tag { font-size: 14px; left: 15px; right: 10px; top: 15px; line-height: 1.5; }
  .lab-results-replays .lab-frame-tag i { display: none; }
  .lab-results-replays .lab-frame-code { bottom: 14px; left: 15px; right: 10px; font-size: 14px; }
  .lab-results-replays .lab-frame-center { padding-inline: 7px; }
  .lab-results-replays .lab-placeholder-meta { font-size: 14px; }
  .lab-hover-hint { max-width: 210px; font-size: 14px; padding-top: 7px; line-height: 1.6; }
  .lab-demo-layout { grid-template-columns: 1fr; }
  .lab-demo-window { height: clamp(340px, 62svh, 620px); }
  .lab-demo-outline { padding: 0; }
  .lab-demo-center-label { font-size: 14px; }
  .lab-demo-bottom { padding: 16px; font-size: 14px; }
  .lab-session { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lab-session-item { min-height: 55px; padding: 15px 12px; gap: 8px; }
  .lab-session-arrow { display: none; }
  .lab-session-copy { font-size: 14px; }
  .lab-case-filmstrip { gap: 8px; margin-bottom: 20px; }
  .lab-case-thumb-image { aspect-ratio: 1.15; }
  .lab-case-thumb-label { padding: 11px 9px; font-size: 14px; gap: 3px; }
  .lab-case-thumb-label > span { font-size: 14px; }
  .lab-case-cross { font-size: 23px; }
  .lab-thumb-corner { left: 9px; bottom: 7px; font-size: 14px; }
  .lab-case-detail { grid-template-columns: 1fr; gap: 23px; }
  .lab-case-frame { aspect-ratio: 4 / 3; }
  .lab-case-copy { padding: 0; }
  .lab-case-copy h3 { font-size: 28px; }
  .lab-case-copy .lab-eyebrow { font-size: 14px; }
  .lab-note-block { margin-top: 23px; }
  .lab-note-preview { max-width: 340px; }
  .lab-text-button { margin-top: 23px; }
  .lab-footer-main { padding-block: 40px; }
  .lab-footer-identity { margin-bottom: 12px; }
  .lab-footer-venue { font-size: 14px; margin: 12px 0 0; }
  .lab-footer-paper-title { max-width: 32ch; font-size: clamp(27px, 5.8vw, 36px); line-height: 1.18; }
  .lab-footer-byline { margin-top: 16px; }
  .lab-footer-byline .paper-authors { font-size: 14px; column-gap: 16px; }
  .lab-footer-byline .paper-affiliations { font-size: 14px; gap: 8px 15px; }
  .lab-resource-links { gap: 9px; margin-top: 25px; }
  .lab-resource-links button, .lab-resource-links a { min-width: 85px; min-height: 43px; gap: 12px; padding: 11px 14px; font-size: 14px; }
  .lab-citation { margin-top: 34px; padding: 19px 17px 22px; }
  .lab-citation-header { margin-bottom: 18px; }
  .lab-citation-header h3 { font-size: 14px; gap: 9px; }
  .lab-citation-placeholder { font-size: 14px; }
  .lab-citation-code { font-size: 14px; line-height: 1.9; }
}
@media (max-width: 479px) {
  .lab-footer-acronym { font-size: 15px; }
}
@media (max-width: 400px) {
  .lab-pair-label { max-width: 90px; white-space: normal; }
  .lab-step { gap: 8px; padding-inline: 12px; }
  .lab-step-label { font-size: 16px; }
  .lab-step-arrow { display: none; }
  .lab-workspace-caption .lab-micro { display: none; }
  .lab-hover-hint { max-width: 130px; }
  .lab-replay-heading .lab-micro:last-child { max-width: 135px; text-align: right; }
}
@media (hover: none) { .lab-hover-hint { display: none; } }
@media (prefers-reduced-motion: reduce) {
  .lab-section *, .lab-index * { transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* Labels on the recorded demonstration appear only when they clarify a reveal. */
.paper-project .corl-mode { font: 14px/1.4 'Geist Wght', sans-serif; text-transform: none; letter-spacing: 0; opacity: 0; }
.paper-project .corl-tile.is-hovering .corl-mode, .paper-project .corl-tile.is-key-simulation .corl-mode, .paper-project .corl-grid.is-simulation .corl-mode { opacity: 1; }
.paper-project [data-corl-status] { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }