:root {
  --ink: #091011;
  --ink-2: #111a1b;
  --paper: #eff0e8;
  --muted: #a9b6b2;
  --line: rgba(239, 240, 232, 0.16);
  --acid: #d5e36f;
  --coral: #ed967e;
  --blue: #8fd8dc;
  --display: "DM Sans", Arial, sans-serif;
  --mono: "DM Mono", monospace;
  --serif: "DM Serif Display", Georgia, serif;
  --pad: clamp(1.1rem, 4vw, 4.5rem);
  --ease: cubic-bezier(0.2, 0.75, 0.2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--ink); }
body { min-width: 320px; margin: 0; overflow-x: hidden; color: var(--paper); background: var(--ink); font-family: var(--display); font-size: 16px; line-height: 1.5; -webkit-font-smoothing: antialiased; }
body.task-open { background: #0d1516; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { color: var(--ink); background: var(--acid); }
.mono { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.09em; text-transform: uppercase; }
.lab-ambient { position: fixed; z-index: -1; inset: 0; overflow: hidden; pointer-events: none; background: radial-gradient(circle at 78% 9%, rgba(213,227,111,0.1), transparent 19rem), radial-gradient(circle at 10% 54%, rgba(143,216,220,0.07), transparent 27rem), linear-gradient(135deg, #091011 0%, #111a1b 55%, #0b1112 100%); }
.lab-ambient::before { position: absolute; inset: 0; opacity: 0.4; background-image: linear-gradient(rgba(239,240,232,0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(239,240,232,0.035) 1px, transparent 1px); background-size: 5rem 5rem; mask-image: linear-gradient(to bottom, black, transparent 75%); content: ""; }
.ambient-orb { position: absolute; display: block; width: 24rem; aspect-ratio: 1; border: 1px solid rgba(239,240,232,0.08); border-radius: 48% 52% 58% 42% / 54% 45% 55% 46%; filter: blur(0.2px); transform: rotate(-18deg); }
.ambient-orb-a { top: -10rem; right: -5rem; background: radial-gradient(circle at 30% 25%, rgba(213,227,111,0.25), transparent 30%), radial-gradient(circle at 74% 72%, rgba(143,216,220,0.2), transparent 42%); animation: drift-a 16s ease-in-out infinite alternate; }
.ambient-orb-b { top: 46%; left: -13rem; width: 30rem; border-color: rgba(237,150,126,0.1); background: radial-gradient(circle at 64% 32%, rgba(237,150,126,0.16), transparent 34%); animation: drift-b 19s ease-in-out infinite alternate; }
.ambient-orb-c { right: 13%; bottom: -18rem; width: 34rem; border-color: rgba(143,216,220,0.1); background: radial-gradient(circle at 30% 25%, rgba(143,216,220,0.17), transparent 40%); animation: drift-c 22s ease-in-out infinite alternate; }
@keyframes drift-a { to { transform: translate(-2rem, 3rem) rotate(12deg) scale(1.08); } }
@keyframes drift-b { to { transform: translate(3rem, -2rem) rotate(14deg) scale(0.94); } }
@keyframes drift-c { to { transform: translate(-3rem, -2rem) rotate(-8deg) scale(1.06); } }
.lab-header { position: relative; z-index: 2; display: flex; justify-content: space-between; align-items: center; gap: 2rem; border-bottom: 1px solid var(--line); padding: 1.15rem var(--pad); }
.lab-mark { display: inline-flex; align-items: flex-start; gap: 0.65rem; color: var(--paper); font-family: var(--mono); font-size: 0.67rem; letter-spacing: 0.08em; line-height: 1.15; }
.lab-mark b { color: var(--acid); font-weight: 500; }
.lab-mark-dot, .live-dot { display: inline-block; width: 0.47rem; height: 0.47rem; margin-top: 0.08rem; border-radius: 50%; background: var(--acid); box-shadow: 0 0 0 0.26rem rgba(213,227,111,0.1); }
.lab-header-meta { display: flex; align-items: center; gap: 0.55rem; color: var(--muted); }
.live-dot { width: 0.34rem; height: 0.34rem; margin-top: 0; background: var(--coral); box-shadow: 0 0 0 0.25rem rgba(237,150,126,0.11); }
.back-link, .workspace-back { color: var(--muted); font-family: var(--mono); font-size: 0.67rem; letter-spacing: 0.08em; transition: color 0.25s; }
.back-link span { color: var(--acid); }
.back-link:hover, .back-link:focus-visible, .workspace-back:hover, .workspace-back:focus-visible { color: var(--paper); outline: none; }
.lab-hero, .studies-section, .method-section, .task-workspace { padding: 7rem var(--pad); }
.lab-hero { min-height: min(82svh, 54rem); display: flex; flex-direction: column; justify-content: space-between; }
.lab-hero-index, .section-index { color: var(--acid); }
.lab-hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(16rem, 0.85fr); align-items: end; gap: 8vw; max-width: 92rem; margin: 8rem auto 0; }
.lab-hero-copy { max-width: 65rem; }
.eyebrow { margin: 0 0 1.3rem; color: var(--coral); }
.lab-hero h1 { margin: 0; font-size: clamp(3.9rem, 9.3vw, 10rem); font-weight: 500; letter-spacing: -0.085em; line-height: 0.84; }
.lab-hero h1 em, .section-heading h2 em, .method-grid h2 em { color: var(--acid); font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -0.025em; }
.lab-lede { max-width: 36rem; margin: 2.2rem 0 0; color: var(--paper); font-size: clamp(1.25rem, 2vw, 1.8rem); letter-spacing: -0.035em; line-height: 1.1; }
.lab-intro { max-width: 31rem; margin: 1.2rem 0 0; color: var(--muted); font-size: 0.94rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-top: 2.1rem; }
.primary-action, .quiet-action { display: inline-flex; align-items: center; gap: 0.65rem; border-bottom: 1px solid rgba(239,240,232,0.42); padding-bottom: 0.42rem; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; transition: color 0.25s, border-color 0.25s, transform 0.25s; }
.primary-action span, .quiet-action span { color: var(--acid); }
.primary-action:hover, .primary-action:focus-visible, .quiet-action:hover, .quiet-action:focus-visible { border-color: var(--acid); color: var(--acid); outline: none; transform: translateY(-0.15rem); }
.quiet-action { border-color: var(--line); color: var(--muted); }
.lab-hero-note { border-left: 1px solid var(--line); padding: 0.35rem 0 0.35rem 1.1rem; }
.lab-hero-note > span { color: var(--coral); }
.lab-hero-note p { max-width: 18rem; margin: 1.5rem 0 3.5rem; color: var(--paper); font-size: clamp(1.4rem, 2.3vw, 2.2rem); letter-spacing: -0.06em; line-height: 0.98; }
.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.35rem; border-top: 1px solid var(--line); padding-top: 0.8rem; color: var(--muted); font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.07em; line-height: 1.3; }
.hero-stats b { display: block; margin-bottom: 0.25rem; color: var(--acid); font-family: var(--display); font-size: 1.7rem; font-weight: 500; letter-spacing: -0.08em; }
.hero-foot { display: flex; justify-content: space-between; max-width: 92rem; margin: 6rem auto 0; border-top: 1px solid var(--line); padding-top: 0.8rem; color: var(--muted); }
.hero-foot span:first-child { color: var(--acid); }
.studies-section { background: #111a1b; }
.section-heading, .method-grid { display: grid; grid-template-columns: 1fr 0.8fr; gap: 8vw; max-width: 92rem; margin: 0 auto 5rem; align-items: end; }
.section-heading h2, .method-grid h2 { margin: 1.6rem 0 0; font-size: clamp(3.5rem, 7vw, 7rem); font-weight: 500; letter-spacing: -0.08em; line-height: 0.86; }
.section-heading > p { max-width: 23rem; margin: 0; color: var(--muted); font-size: 0.94rem; }
.study-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; max-width: 92rem; margin: 0 auto; }
.study-card { position: relative; display: flex; min-height: 37rem; flex-direction: column; overflow: hidden; border: 1px solid var(--line); padding: 1.2rem; background: #10191a; transition: transform 0.45s var(--ease), border-color 0.35s, background 0.35s; cursor: pointer; }
.study-card:hover, .study-card:focus-within { border-color: rgba(213,227,111,0.62); background: #152021; transform: translateY(-0.45rem); }
.study-card-top { display: flex; justify-content: space-between; color: var(--muted); }
.study-number { color: var(--acid); font-size: 0.8rem; }
.study-time { font-size: 0.61rem; }
.study-symbol { position: relative; min-height: 12rem; margin: 2rem -1.2rem 2rem; overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(9,16,17,0.34); }
.study-symbol::before { position: absolute; inset: 0; opacity: 0.35; background-image: linear-gradient(rgba(239,240,232,0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(239,240,232,0.07) 1px, transparent 1px); background-size: 2.6rem 2.6rem; content: ""; }
.study-symbol-stroop i { position: absolute; font-family: var(--serif); font-size: clamp(2.6rem, 5vw, 4.8rem); font-style: italic; line-height: 1; }
.study-symbol-stroop i:nth-child(1) { top: 1.8rem; left: 12%; color: var(--coral); transform: rotate(-8deg); }
.study-symbol-stroop i:nth-child(2) { top: 4.9rem; left: 34%; color: var(--blue); transform: rotate(5deg); }
.study-symbol-stroop i:nth-child(3) { top: 2.1rem; left: 59%; color: var(--acid); transform: rotate(-2deg); }
.study-symbol-memory { display: flex; align-items: center; justify-content: center; gap: 0.7rem; color: var(--blue); font-family: var(--mono); }
.study-symbol-memory::after { position: absolute; right: 14%; bottom: 1.2rem; left: 14%; border-bottom: 1px dashed rgba(239,240,232,0.28); content: ""; }
.study-symbol-memory i { position: relative; z-index: 1; display: grid; width: 3.2rem; height: 4.2rem; place-items: center; border: 1px solid rgba(143,216,220,0.55); background: #142529; font-size: 2.2rem; font-style: normal; }
.study-symbol-memory i:nth-child(2) { transform: translateY(-0.9rem); color: var(--acid); }
.study-symbol-memory i:nth-child(3) { transform: translateY(0.4rem); color: var(--coral); }
.study-symbol-memory b { position: absolute; right: 16%; bottom: 0.7rem; color: var(--muted); font-weight: 400; }
.study-symbol-search { display: grid; grid-template-columns: repeat(3, 2rem); place-content: center; gap: 1rem; }
.study-symbol-search i { display: block; width: 1.7rem; height: 1.7rem; border: 1px solid rgba(143,216,220,0.75); border-radius: 50%; background: rgba(143,216,220,0.12); }
.study-symbol-search i:nth-child(2), .study-symbol-search i:nth-child(6), .study-symbol-search i:nth-child(8) { border-radius: 0.1rem; }
.study-symbol-search i.target { border-color: var(--coral); background: var(--coral); box-shadow: 0 0 0 0.55rem rgba(237,150,126,0.12); }
.study-card-copy { position: relative; z-index: 1; }
.study-kicker { color: var(--coral); }
.study-card h3 { margin: 0.8rem 0 0.65rem; font-size: 1.7rem; font-weight: 500; letter-spacing: -0.06em; }
.study-card-copy > p { min-height: 3.4rem; margin: 0; color: var(--muted); font-size: 0.88rem; }
.study-card dl { margin: 1.6rem 0 0; border-top: 1px solid var(--line); }
.study-card dl div { display: grid; grid-template-columns: 5rem 1fr; gap: 1rem; border-bottom: 1px solid rgba(239,240,232,0.1); padding: 0.7rem 0; }
.study-card dt { color: var(--acid); font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.06em; }
.study-card dd { margin: 0; color: var(--muted); font-size: 0.75rem; }
.study-launch { display: flex; justify-content: space-between; align-items: center; width: 100%; margin-top: auto; border: 1px solid var(--line); padding: 0.75rem 0.85rem; background: transparent; color: var(--paper); cursor: pointer; font-family: var(--mono); font-size: 0.63rem; letter-spacing: 0.08em; text-align: left; text-transform: uppercase; transition: background 0.25s, color 0.25s; }
.study-launch span { color: var(--acid); font-size: 1rem; }
.study-card:hover .study-launch, .study-card:focus-within .study-launch { background: var(--acid); color: var(--ink); }
.study-card:hover .study-launch span, .study-card:focus-within .study-launch span { color: var(--ink); }
.method-section { background: #d7dfd9; color: var(--ink); }
.method-grid { margin-bottom: 0; }
.method-grid h2 em { color: #527c85; }
.method-copy > p { max-width: 29rem; margin: 0 0 2.8rem; color: #4e625d; font-size: 1rem; }
.method-list { border-top: 1px solid rgba(9,16,17,0.25); }
.method-list > div { display: grid; grid-template-columns: 2rem 1fr; gap: 1rem; border-bottom: 1px solid rgba(9,16,17,0.25); padding: 1rem 0; }
.method-list .mono { color: #527c85; }
.method-list p { max-width: 27rem; margin: 0; color: #566862; font-size: 0.84rem; }
.task-workspace { display: none; background: #0d1516; }
.task-workspace.is-active { display: block; }
.workspace-top { display: flex; justify-content: space-between; max-width: 72rem; margin: 0 auto 2rem; }
.workspace-top > span { color: var(--acid); }
.task-frame { max-width: 72rem; margin: 0 auto; border: 1px solid var(--line); background: #111a1b; }
.task-heading { border-bottom: 1px solid var(--line); padding: clamp(1.3rem, 4vw, 3rem); }
.task-kicker { color: var(--coral); }
.task-heading h2 { margin: 0.7rem 0 0.8rem; font-size: clamp(2.3rem, 5vw, 5rem); font-weight: 500; letter-spacing: -0.07em; line-height: 0.9; }
.task-heading p { max-width: 40rem; margin: 0; color: var(--muted); }
.task-content { min-height: 19rem; padding: clamp(1.3rem, 4vw, 3rem); }
.instruction-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.instruction-block { border-top: 1px solid var(--line); padding-top: 0.8rem; }
.instruction-block h3 { margin: 0 0 0.55rem; color: var(--acid); font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; }
.instruction-block p { max-width: 27rem; margin: 0; color: var(--muted); font-size: 0.9rem; }
.instruction-example { display: grid; min-height: 5rem; place-items: center; margin: 1rem 0 0; border: 1px solid var(--line); background: rgba(9,16,17,0.5); font-family: var(--serif); font-size: 2.1rem; font-style: italic; }
.instruction-example small { display: block; margin-top: 0.3rem; color: var(--muted); font-family: var(--mono); font-size: 0.58rem; font-style: normal; letter-spacing: 0.06em; text-align: center; text-transform: uppercase; }
.mini-search { display: flex; align-items: center; gap: 0.45rem; }
.mini-search i { display: block; width: 1.15rem; height: 1.15rem; border: 1px solid var(--blue); border-radius: 50%; background: rgba(143,216,220,0.12); }
.mini-search i.target { border-color: var(--coral); background: var(--coral); box-shadow: 0 0 0 0.28rem rgba(237,150,126,0.13); }
.task-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 2rem; }
.task-button { border: 1px solid var(--line); padding: 0.75rem 0.95rem; background: var(--acid); color: var(--ink); cursor: pointer; font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.08em; text-transform: uppercase; transition: transform 0.2s, background 0.2s; }
.task-button.secondary { background: transparent; color: var(--paper); }
.task-button:hover, .task-button:focus-visible { outline: none; transform: translateY(-0.15rem); }
.task-button.secondary:hover, .task-button.secondary:focus-visible { border-color: var(--acid); color: var(--acid); }
.trial-meta { display: flex; justify-content: space-between; gap: 1rem; color: var(--muted); font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.07em; text-transform: uppercase; }
.trial-progress { overflow: hidden; height: 0.25rem; margin: 0.8rem 0 2rem; background: rgba(239,240,232,0.1); }
.trial-progress span { display: block; width: 0%; height: 100%; background: var(--acid); transition: width 0.3s; }
.stroop-stage { display: grid; min-height: 14rem; place-items: center; margin-bottom: 1.5rem; border: 1px solid var(--line); background: rgba(9,16,17,0.45); }
.stroop-stimulus { font-family: var(--serif); font-size: clamp(3rem, 9vw, 7rem); font-style: italic; line-height: 1; }
.color-controls { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.5rem; }
.color-button { border: 0; padding: 0.8rem 0.35rem; color: white; cursor: pointer; font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.06em; text-transform: uppercase; }
.color-button:hover, .color-button:focus-visible { outline: 2px solid var(--paper); outline-offset: 2px; }
.memory-stage { display: grid; min-height: 14rem; place-items: center; margin-bottom: 1.5rem; border: 1px solid var(--line); background: rgba(9,16,17,0.45); }
.memory-sequence { color: var(--blue); font-family: var(--mono); font-size: clamp(2.5rem, 7vw, 5rem); letter-spacing: 0.35em; }
.memory-keypad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.6rem; max-width: 23rem; margin: 0 auto; }
.memory-key { border: 1px solid var(--line); padding: 0.8rem; background: #142324; color: var(--paper); cursor: pointer; font-family: var(--mono); font-size: 1rem; }
.memory-key:hover, .memory-key:focus-visible { border-color: var(--acid); color: var(--acid); outline: none; }
.memory-input { min-height: 2.4rem; margin-bottom: 1rem; color: var(--acid); font-family: var(--mono); letter-spacing: 0.2em; text-align: center; }
.search-stage { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.8rem; min-height: 14rem; place-content: center; margin-bottom: 1.5rem; border: 1px solid var(--line); background: rgba(9,16,17,0.45); padding: 1.5rem; }
.search-tile { width: min(3.2rem, 11vw); aspect-ratio: 1; border: 1px solid rgba(143,216,220,0.7); border-radius: 50%; background: rgba(143,216,220,0.11); cursor: pointer; }
.search-tile.square { border-radius: 0.2rem; }
.search-tile.target { border-color: var(--coral); background: var(--coral); box-shadow: 0 0 0 0.35rem rgba(237,150,126,0.13); }
.absent-button { display: block; margin: 0 auto; border: 1px solid var(--line); padding: 0.75rem 1rem; background: transparent; color: var(--paper); cursor: pointer; font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.07em; text-transform: uppercase; }
.absent-button:hover, .absent-button:focus-visible { border-color: var(--acid); color: var(--acid); outline: none; }
.result-layout { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 2rem; align-items: start; }
.result-signal { border: 1px solid var(--line); padding: 1.1rem; background: rgba(9,16,17,0.46); }
.result-signal strong { display: block; color: var(--acid); font-size: clamp(3rem, 7vw, 6rem); font-weight: 500; letter-spacing: -0.1em; line-height: 0.8; }
.result-signal span { display: block; margin-top: 0.7rem; color: var(--muted); font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.07em; text-transform: uppercase; }
.result-copy h3 { margin: 0 0 0.65rem; font-size: 1.4rem; font-weight: 500; letter-spacing: -0.05em; }
.result-copy p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.result-stats { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.3rem; }
.result-stats span { border: 1px solid var(--line); padding: 0.45rem 0.55rem; color: var(--blue); font-family: var(--mono); font-size: 0.59rem; letter-spacing: 0.07em; }
.lab-footer { display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid var(--line); padding: 1.1rem var(--pad); color: var(--muted); font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.07em; }
.lab-footer a { color: var(--acid); }

@media (max-width: 900px) {
  .lab-hero-grid, .section-heading, .method-grid { grid-template-columns: 1fr; gap: 3rem; }
  .lab-hero-grid { margin-top: 6rem; }
  .lab-hero-note { max-width: 31rem; }
  .study-grid { grid-template-columns: 1fr; }
  .study-card { min-height: 0; }
  .study-symbol { min-height: 10rem; }
  .study-card-copy > p { min-height: 0; }
}
@media (max-width: 620px) {
  .lab-header { align-items: flex-start; flex-wrap: wrap; }
  .lab-header-meta { order: 3; width: 100%; }
  .back-link { margin-left: auto; }
  .lab-hero, .studies-section, .method-section, .task-workspace { padding-top: 5rem; padding-bottom: 5rem; }
  .lab-hero { min-height: 92svh; }
  .lab-hero-grid { margin-top: 5rem; }
  .lab-hero h1 { font-size: clamp(3.4rem, 16vw, 6rem); }
  .hero-stats { gap: 0.5rem; }
  .hero-foot { align-items: flex-start; flex-direction: column; gap: 0.45rem; margin-top: 4rem; }
  .section-heading, .method-grid { margin-bottom: 3rem; }
  .section-heading h2, .method-grid h2 { font-size: clamp(3.5rem, 17vw, 6.2rem); }
  .study-card { padding: 1rem; }
  .study-symbol { margin-right: -1rem; margin-left: -1rem; }
  .instruction-grid, .result-layout { grid-template-columns: 1fr; }
  .color-controls { grid-template-columns: repeat(3, 1fr); }
  .search-stage { grid-template-columns: repeat(4, 1fr); gap: 0.55rem; }
  .lab-footer { align-items: flex-start; flex-direction: column; gap: 0.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* Cognition Lab uses a field-notebook system, separate from the portfolio's dark signal palette. */
:root {
  --ink: #f4f0e7;
  --paper: #213239;
  --muted: #647476;
  --line: rgba(33,50,57,0.2);
  --acid: #2457ff;
  --coral: #e96b4d;
  --blue: #0e8c83;
  --display: "Instrument Sans", Arial, sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --serif: "Source Serif 4", Georgia, serif;
}

html { background: #f4f0e7; color: var(--paper); }
body, body.task-open { color: var(--paper); background: #f4f0e7; }
.lab-ambient { background: radial-gradient(circle at 83% 8%, rgba(36,87,255,0.1), transparent 18rem), radial-gradient(circle at 5% 56%, rgba(14,140,131,0.1), transparent 24rem), #f4f0e7; }
.lab-ambient::before { opacity: 0.55; background-image: linear-gradient(rgba(33,50,57,0.065) 1px, transparent 1px), linear-gradient(90deg, rgba(33,50,57,0.065) 1px, transparent 1px); background-size: 4rem 4rem; }
.ambient-orb { border-color: rgba(33,50,57,0.15); }
.ambient-orb-a { background: radial-gradient(circle at 30% 25%, rgba(36,87,255,0.2), transparent 30%), radial-gradient(circle at 74% 72%, rgba(14,140,131,0.18), transparent 42%); }
.ambient-orb-b { border-color: rgba(233,107,77,0.2); background: radial-gradient(circle at 64% 32%, rgba(233,107,77,0.2), transparent 34%); }
.ambient-orb-c { border-color: rgba(14,140,131,0.16); background: radial-gradient(circle at 30% 25%, rgba(14,140,131,0.18), transparent 40%); }
.lab-header { border-color: var(--line); background: rgba(244,240,231,0.9); backdrop-filter: blur(12px); }
.lab-mark { color: var(--paper); }
.lab-mark b { color: var(--acid); }
.lab-mark-dot { background: var(--acid); box-shadow: 0 0 0 0.26rem rgba(36,87,255,0.12); }
.live-dot { background: var(--coral); box-shadow: 0 0 0 0.25rem rgba(233,107,77,0.13); }
.lab-header-meta, .back-link, .workspace-back { color: var(--muted); }
.back-link span { color: var(--acid); }
.lab-hero-index, .section-index { color: var(--acid); }
.eyebrow, .task-kicker, .study-kicker { color: var(--coral); }
.lab-hero h1, .lab-hero-note p, .lab-lede { color: var(--paper); }
.lab-hero h1 em, .section-heading h2 em, .method-grid h2 em { color: var(--acid); }
.lab-intro, .section-heading > p, .method-copy > p, .method-list p { color: var(--muted); }
.primary-action { border-color: rgba(33,50,57,0.35); background: var(--acid); color: #f4f0e7; }
.quiet-action { border-color: var(--line); color: var(--muted); }
.primary-action span, .quiet-action span { color: currentColor; }
.primary-action:hover, .primary-action:focus-visible, .quiet-action:hover, .quiet-action:focus-visible { border-color: var(--acid); color: var(--acid); }
.primary-action:hover, .primary-action:focus-visible { background: transparent; }
.lab-hero-note { border-color: var(--line); }
.lab-hero-note > span, .hero-foot span:first-child { color: var(--coral); }
.hero-stats { border-color: var(--line); color: var(--muted); }
.hero-stats b { color: var(--acid); }
.hero-foot { border-color: var(--line); color: var(--muted); }
.studies-section { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #e5ece7; }
.study-card { border-color: var(--line); background: #fbfaf5; box-shadow: 0 0.8rem 2rem rgba(33,50,57,0.06); }
.study-card:hover, .study-card:focus-within { border-color: rgba(36,87,255,0.65); background: #fffdf8; box-shadow: 0 1.1rem 2.5rem rgba(33,50,57,0.1); }
.study-card-top, .study-time, .study-card-copy > p, .study-card dd { color: var(--muted); }
.study-number, .study-card dt { color: var(--acid); }
.study-symbol { border-color: var(--line); background: #edf2ed; }
.study-symbol::before { opacity: 0.42; background-image: linear-gradient(rgba(33,50,57,0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(33,50,57,0.08) 1px, transparent 1px); }
.study-symbol-memory i { border-color: rgba(14,140,131,0.45); background: #e1efeb; }
.study-symbol-memory::after { border-color: rgba(33,50,57,0.25); }
.study-card dl, .study-card dl div { border-color: var(--line); }
.study-launch { border-color: rgba(33,50,57,0.28); color: var(--paper); }
.study-card:hover .study-launch, .study-card:focus-within .study-launch { background: var(--acid); color: #f4f0e7; }
.study-card:hover .study-launch span, .study-card:focus-within .study-launch span { color: #f4f0e7; }
.method-section { background: #cddbd4; color: var(--paper); }
.method-grid h2 em { color: var(--blue); }
.method-list, .method-list > div { border-color: rgba(33,50,57,0.24); }
.method-list .mono { color: var(--blue); }
.task-workspace { background: #dce7e1; }
.workspace-top > span { color: var(--acid); }
.task-frame { border-color: var(--line); background: #fbfaf5; }
.task-heading { border-color: var(--line); }
.task-heading h2 { color: var(--paper); }
.task-heading p, .trial-meta { color: var(--muted); }
.task-heading .task-kicker { color: var(--coral); }
.task-content { color: var(--paper); }
.instruction-block { border-color: var(--line); }
.instruction-block h3 { color: var(--acid); }
.instruction-block p { color: var(--muted); }
.instruction-example, .stroop-stage, .memory-stage, .search-stage { border-color: var(--line); background: #f0f4ef; }
.instruction-example small { color: var(--muted); }
.task-button { border-color: rgba(33,50,57,0.3); background: var(--acid); color: #f4f0e7; }
.task-button.secondary { background: transparent; color: var(--paper); }
.task-button.secondary:hover, .task-button.secondary:focus-visible { border-color: var(--acid); color: var(--acid); }
.trial-progress { background: rgba(33,50,57,0.12); }
.memory-key { border-color: var(--line); background: #e4efeb; color: var(--paper); }
.memory-key:hover, .memory-key:focus-visible { border-color: var(--acid); color: var(--acid); }
.memory-input { color: var(--acid); }
.absent-button { border-color: var(--line); color: var(--paper); }
.absent-button:hover, .absent-button:focus-visible { border-color: var(--acid); color: var(--acid); }
.result-signal { border-color: var(--line); background: #fbfaf5; }
.result-signal strong { color: var(--acid); }
.result-signal span, .result-copy p { color: var(--muted); }
.result-stats span { border-color: var(--line); color: var(--blue); }
.lab-footer { border-color: var(--line); color: var(--muted); }
.lab-footer a { color: var(--acid); }