:root {
  --ink: #141414;
  --paper: #f2f0ea;
  --paper-2: #e6e3dc;
  --line: rgba(20, 20, 20, .28);
  --muted: #5f605c;
  --signal: #c43d27;
  --white: #f4f2ed;
  --max: 1420px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Manrope", sans-serif; font-weight: 500; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 30; padding: .75rem 1rem; color: var(--white); background: var(--ink); }
.skip-link:focus { top: 1rem; }

.site-header, .legal-header { position: sticky; inset: 0 0 auto; z-index: 20; min-height: 66px; display: flex; align-items: center; justify-content: space-between; padding: 0 clamp(1.2rem, 4vw, 4rem); color: var(--ink); background: rgba(242,240,234,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.wordmark { display: inline-flex; align-items: center; gap: .65rem; font-size: .84rem; font-weight: 600; letter-spacing: .08em; text-decoration: none; }
.wordmark-mark { width: 16px; height: 16px; border: 1px solid currentColor; border-radius: 50%; position: relative; }
.wordmark-mark::before { content: ""; position: absolute; width: 22px; height: 1px; left: -4px; top: 7px; background: currentColor; transform: rotate(-35deg); }
nav { display: flex; align-items: center; gap: clamp(1rem, 2.5vw, 2.4rem); }
nav a, .legal-header > a:last-child { font-size: .76rem; font-weight: 600; letter-spacing: .035em; text-decoration: none; text-transform: uppercase; }
nav a:hover, .legal-header > a:last-child:hover { text-decoration: underline; text-underline-offset: .28rem; }

.publication-hero { max-width: var(--max); margin: auto; padding: clamp(5rem, 10vw, 9rem) clamp(1.2rem, 4vw, 4rem) clamp(5rem, 9vw, 9rem); display: grid; grid-template-columns: minmax(170px, .42fr) 1.58fr; column-gap: clamp(2rem, 7vw, 8rem); }
.publication-meta { padding-top: .4rem; }
.publication-meta > p, .kicker, .section-index, .factorial { font-size: .76rem; font-weight: 600; letter-spacing: .045em; text-transform: uppercase; }
.publication-meta > p { margin: 0 0 2.4rem; color: var(--signal); }
.publication-meta dl { margin: 0; }
.publication-meta dl div { padding: .72rem 0; border-top: 1px solid var(--line); }
.publication-meta dt { color: var(--muted); font-size: .78rem; font-weight: 600; letter-spacing: .025em; text-transform: uppercase; }
.publication-meta dd { margin: .28rem 0 0; font-size: .86rem; }
.kicker { margin: 0; }
.publication-title { min-width: 0; }
.publication-title .kicker { font-size: clamp(3.3rem, 7.4vw, 8rem); font-weight: 600; letter-spacing: -.065em; line-height: .96; text-transform: none; }
.publication-title h1 { max-width: 1100px; margin: 0; font-size: clamp(3.3rem, 7.4vw, 8rem); font-weight: 600; letter-spacing: -.065em; line-height: .96; }
.acronym-line { display: block; max-width: 100%; white-space: nowrap; }
.acronym-letter { color: var(--signal); font-weight: 800; }
.abstract { max-width: 760px; margin: 2.5rem 0; color: #4f504c; font-size: clamp(1rem, 1.5vw, 1.22rem); line-height: 1.7; }
.publication-links { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.publication-links a, .inline-link { font-size: .78rem; font-weight: 600; letter-spacing: .02em; text-transform: uppercase; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .35rem; }

.protocol-scroll { --protocol-progress: 0; height: 430vh; max-width: var(--max); margin: 0 auto; position: relative; border-block: 1px solid var(--ink); }
.protocol-stage { height: calc(100svh - 66px); min-height: 580px; position: sticky; top: 66px; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(430px, .9fr); overflow: hidden; background: var(--paper); }
.protocol-visual { min-width: 0; min-height: 0; margin: 0; position: relative; display: grid; grid-template-rows: 1fr auto; color: var(--white); background: #08111d; border-right: 1px solid var(--ink); }
.protocol-images { min-height: 0; position: relative; overflow: hidden; background: #08111d; }
.protocol-image { width: 100%; height: 100%; position: absolute; inset: 0; display: block; object-fit: cover; opacity: 0; transform: scale(1.08); transition: opacity .65s ease, transform 1.1s cubic-bezier(.2,.72,.2,1), filter .65s ease; }
.protocol-image.is-active { opacity: 1; transform: scale(1); }
.protocol-image[data-protocol-image="0"] { object-position: 55% 50%; filter: grayscale(.76) brightness(.63) contrast(1.16); }
.protocol-image[data-protocol-image="1"] { object-position: 70% 52%; filter: saturate(.72) brightness(.82) contrast(1.08); transform-origin: 65% 50%; }
.protocol-image[data-protocol-image="2"] { object-position: 82% 50%; filter: saturate(1.05) brightness(.92) contrast(1.08); }
.protocol-image[data-protocol-image="3"] { object-position: 95% 47%; filter: saturate(.85) brightness(.78) contrast(1.18); transform-origin: 82% 50%; }
.protocol-scan { position: absolute; inset: 0; z-index: 2; pointer-events: none; background: linear-gradient(90deg, transparent 0 49.85%, rgba(218,235,245,.34) 50%, transparent 50.15%), linear-gradient(180deg, transparent 0 49.85%, rgba(218,235,245,.18) 50%, transparent 50.15%); opacity: .35; transform: translateY(calc((var(--protocol-progress) - .5) * 7%)); }
.protocol-annotation { position: absolute; inset: 1rem 1rem auto; z-index: 3; display: flex; justify-content: space-between; gap: 1rem; pointer-events: none; }
.protocol-annotation span { padding: .48rem .65rem; font-family: "DM Mono", monospace; font-size: .78rem; letter-spacing: .025em; text-transform: uppercase; background: rgba(6,13,23,.58); border: 1px solid rgba(255,255,255,.32); backdrop-filter: blur(8px); }
.protocol-visual figcaption { min-height: 52px; padding: .85rem 1rem; display: grid; grid-template-columns: 100px 1fr; color: rgba(255,255,255,.7); background: #08111d; border-top: 1px solid rgba(255,255,255,.24); font-size: .78rem; font-weight: 600; letter-spacing: .025em; text-transform: uppercase; }
.protocol-visual figcaption span { color: #9ec8e3; }
.protocol-visual figcaption p { margin: 0; }
.protocol-panel { min-width: 0; display: grid; grid-template-rows: auto 1fr auto; background: var(--paper); }
.protocol-heading { min-height: 92px; padding: 1rem; display: grid; grid-template-columns: .8fr 1.6fr auto; gap: 1.2rem; align-items: start; border-bottom: 1px solid var(--ink); }
.protocol-heading div { display: flex; flex-direction: column; gap: .25rem; }
.protocol-heading span, .protocol-heading b { font-size: .78rem; letter-spacing: .035em; text-transform: uppercase; }
.protocol-heading span { color: var(--signal); }
.protocol-heading b { font-weight: 400; }
.protocol-heading p { max-width: 340px; margin: 0; color: var(--muted); font-size: .8rem; line-height: 1.45; }
.protocol-heading .protocol-year { color: var(--muted); }
.protocol-steps { min-height: 0; display: grid; grid-template-rows: repeat(4, 1fr); }
.protocol-step { min-height: 0; padding: clamp(.75rem, 1.5vh, 1.3rem) 1rem; display: grid; grid-template-columns: 64px 1fr; grid-template-rows: 1fr auto; column-gap: .8rem; border-bottom: 1px solid var(--line); color: #888983; transition: color .35s ease, background .35s ease; }
.protocol-step > span, .protocol-step small { font-family: "DM Mono", monospace; font-size: .76rem; letter-spacing: .025em; text-transform: uppercase; }
.protocol-step > span { padding-top: .25rem; }
.protocol-step h2 { margin: 0 0 .45rem; font-size: clamp(1.15rem, 1.65vw, 1.75rem); font-weight: 600; letter-spacing: -.04em; line-height: 1; }
.protocol-step p { max-width: 470px; margin: 0; font-size: clamp(.84rem, .95vw, .96rem); line-height: 1.5; }
.protocol-step small { grid-column: 2; align-self: end; margin-top: .5rem; }
.protocol-step.is-active { color: var(--ink); background: rgba(255,255,255,.34); }
.protocol-step.is-active > span { color: var(--signal); }
.protocol-progress { height: 44px; position: relative; display: flex; align-items: center; justify-content: flex-end; padding: 0 1rem; overflow: hidden; font-size: .76rem; font-weight: 600; letter-spacing: .035em; text-transform: uppercase; }
.protocol-progress::before, .protocol-progress i { content: ""; height: 1px; position: absolute; inset: 0 0 auto; background: var(--line); }
.protocol-progress i { width: calc(var(--protocol-progress) * 100%); background: var(--signal); transition: width .08s linear; }
.protocol-progress span { color: var(--muted); }

.research-section { max-width: var(--max); margin: auto; padding: clamp(5rem, 9vw, 9rem) clamp(1.2rem, 4vw, 4rem); display: grid; grid-template-columns: minmax(170px, .42fr) 1.58fr; column-gap: clamp(2rem, 7vw, 8rem); border-top: 1px solid var(--line); }
.section-index { display: flex; gap: 1rem; color: var(--muted); }
.section-index span { color: var(--signal); }
.section-index p { margin: 0; }
.section-body h2 { max-width: 1000px; margin: 0 0 clamp(3rem, 6vw, 6rem); font-size: clamp(2.6rem, 5.5vw, 6rem); font-weight: 600; letter-spacing: -.06em; line-height: .94; }
.run-choices { max-width: var(--max); margin: 0 auto; padding: clamp(5rem, 9vw, 9rem) clamp(1.2rem, 4vw, 4rem); border-top: 1px solid var(--ink); }
.run-choices-heading { display: grid; grid-template-columns: minmax(170px, .42fr) 1.58fr; column-gap: clamp(2rem, 7vw, 8rem); }
.run-choices-heading > span { padding-top: .4rem; color: var(--signal); font-size: .76rem; font-weight: 600; letter-spacing: .045em; text-transform: uppercase; }
.run-choices-heading h2 { max-width: 980px; margin: 0; font-size: clamp(3rem, 6.2vw, 6.8rem); font-weight: 600; letter-spacing: -.065em; line-height: .91; }
.run-choices-heading p { grid-column: 2; max-width: 760px; margin: 2rem 0 4rem; color: var(--muted); font-size: clamp(1rem, 1.5vw, 1.18rem); line-height: 1.7; }
.run-choice-grid { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); }
.run-choice-grid article { min-height: 360px; padding: clamp(1.5rem, 3vw, 2.5rem); display: flex; flex-direction: column; }
.run-choice-grid article + article { border-left: 1px solid var(--ink); }
.run-choice-grid article > span { color: var(--signal); font-family: "DM Mono", monospace; font-size: .82rem; }
.run-choice-grid h3 { margin: auto 0 1rem; font-size: clamp(2rem, 3.4vw, 3.5rem); font-weight: 600; letter-spacing: -.05em; line-height: .98; }
.run-choice-grid p { max-width: 540px; margin: 0 0 1.7rem; color: var(--muted); font-size: .98rem; line-height: 1.68; }
.run-choice-grid a { min-height: 58px; display: flex; align-items: center; justify-content: center; padding: 1rem; color: var(--white); background: var(--signal); border: 1px solid var(--signal); font-size: .9rem; font-weight: 700; text-decoration: none; }
.run-choice-grid article:last-child a { background: var(--ink); border-color: var(--ink); }
.run-choice-grid a:hover { color: var(--ink); background: transparent; border-color: var(--ink); }
.run-boundary { margin: 1rem 0 0; color: var(--muted); font-size: .82rem; }

.instrument-scroll { --instrument-progress: 0; height: 210vh; position: relative; color: var(--white); background: #07101b; border-block: 1px solid var(--ink); }
.instrument-stage { height: calc(100svh - 66px); min-height: 600px; margin: 0; position: sticky; top: 66px; display: grid; grid-template-rows: 1fr auto; overflow: hidden; background: #07101b; }
.instrument-media { min-height: 0; position: relative; overflow: hidden; }
.instrument-media::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(90deg, rgba(3,9,16,.34), transparent 38%, transparent 76%, rgba(3,9,16,.25)), linear-gradient(180deg, transparent 60%, rgba(3,9,16,.38)); }
.instrument-media img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: center; transform: scale(calc(1.055 - var(--instrument-progress) * .055)); filter: saturate(.82) contrast(1.06); will-change: transform; }
.instrument-notes { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.instrument-note { max-width: 330px; position: absolute; padding: .8rem .9rem; color: rgba(255,255,255,.48); background: rgba(5,13,23,.68); border: 1px solid rgba(255,255,255,.28); backdrop-filter: blur(10px); opacity: .38; transform: translateY(8px); transition: opacity .35s ease, transform .35s ease, color .35s ease; }
.instrument-note:nth-child(1) { left: 3vw; top: 12%; }
.instrument-note:nth-child(2) { right: 4vw; top: 43%; }
.instrument-note:nth-child(3) { left: 11vw; bottom: 10%; }
.instrument-note.is-active { color: var(--white); opacity: 1; transform: translateY(0); }
.instrument-note span { color: #a8cee5; font-size: .78rem; font-weight: 600; letter-spacing: .035em; text-transform: uppercase; }
.instrument-note p { margin: .45rem 0 0; font-size: .88rem; line-height: 1.45; }
.instrument-stage figcaption { min-height: 112px; padding: 1rem clamp(1.2rem, 4vw, 4rem); display: grid; grid-template-columns: 140px 1fr 1fr; gap: 2rem; align-items: start; border-top: 1px solid rgba(255,255,255,.34); }
.instrument-stage figcaption > span { color: #a8cee5; font-size: .76rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.instrument-stage figcaption h2 { margin: 0; font-size: clamp(1.35rem, 2.3vw, 2.4rem); font-weight: 600; letter-spacing: -.04em; }
.instrument-stage figcaption p { max-width: 500px; margin: 0; color: rgba(255,255,255,.7); font-size: .94rem; line-height: 1.55; }

.measure-directory { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 3rem; border-top: 1px solid var(--ink); border-left: 1px solid var(--line); }
.measure-directory article { min-height: 190px; padding: 1.4rem; display: flex; flex-direction: column; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.measure-directory article > span { color: var(--signal); font-family: "DM Mono", monospace; font-size: .76rem; }
.measure-directory h3 { margin: auto 0 .7rem; font-size: clamp(1.2rem, 1.8vw, 1.7rem); font-weight: 600; letter-spacing: -.035em; line-height: 1.05; }
.measure-directory p { margin: 0; color: var(--muted); font-size: .84rem; line-height: 1.55; }
.attribution-example { margin: 0; }
.attribution-example > header { display: grid; grid-template-columns: 180px 1fr; column-gap: 2rem; }
.attribution-example > header span { padding-top: .4rem; color: var(--signal); font-size: .76rem; font-weight: 650; letter-spacing: .04em; text-transform: uppercase; }
.attribution-example > header h3 { margin: 0; font-size: clamp(2.5rem, 5vw, 5.4rem); font-weight: 600; letter-spacing: -.06em; line-height: .94; }
.attribution-example > header p { grid-column: 2; max-width: 680px; margin: 1.3rem 0 3rem; color: var(--muted); line-height: 1.65; }
.attribution-grid { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); }
.attribution-grid > article { padding: clamp(1.5rem, 3vw, 2.5rem); }
.attribution-grid > article + article { border-left: 1px solid var(--ink); }
.attribution-grid article > span { color: var(--signal); font-size: .76rem; font-weight: 650; letter-spacing: .035em; text-transform: uppercase; }
.attribution-grid .attribution-good > span { color: #277045; }
.attribution-grid h4 { margin: 1.5rem 0 2rem; font-size: clamp(1.8rem, 3vw, 3rem); font-weight: 600; letter-spacing: -.045em; line-height: 1; }
.attribution-cases { border-top: 1px solid var(--line); }
.attribution-case { padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.attribution-case h5 { margin: 0 0 1rem; display: flex; gap: .8rem; font-size: 1rem; font-weight: 650; }
.attribution-case h5 b { color: var(--signal); font-family: "DM Mono", monospace; font-size: .78rem; font-weight: 500; }
.attribution-grid dl { margin: 0; }
.attribution-grid dl div { display: grid; grid-template-columns: 130px 1fr; gap: 1rem; padding: .9rem 0; border-top: 1px solid var(--line); }
.attribution-grid dt { color: var(--muted); font-size: .72rem; font-weight: 650; letter-spacing: .03em; text-transform: uppercase; }
.attribution-grid dd { margin: 0; font-size: .9rem; line-height: 1.55; }
.attribution-grid strong { display: block; padding-top: 1.2rem; color: #277045; font-size: .76rem; letter-spacing: .025em; text-transform: uppercase; }
.attribution-grid .attribution-bad strong { color: var(--signal); }
.section-body > .inline-link { display: inline-block; margin-top: 2.5rem; }
.distribution { color: var(--white); background: var(--signal); }
.distribution .section-index, .distribution .section-index span { color: rgba(20,20,20,.7); }
.distribution .section-body h2 { color: var(--ink); }
.distribution .section-body > p { max-width: 760px; color: #3e2a25; line-height: 1.75; }
.dark-links { margin-top: 3rem; }

footer { max-width: var(--max); margin: auto; padding: 2rem clamp(1.2rem, 4vw, 4rem); display: grid; grid-template-columns: 1fr 1.5fr auto; gap: 2rem; align-items: center; border-top: 1px solid var(--line); color: var(--muted); font-size: .78rem; }
footer p { margin: 0; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 1.2rem; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { text-decoration: underline; text-underline-offset: .25rem; }

.legal-page, .leaderboard-page { color: var(--ink); background: var(--paper); }
.legal-main { width: min(900px, calc(100% - 2.4rem)); margin: 0 auto; padding: clamp(5rem, 10vw, 9rem) 0; }
.legal-main > .eyebrow, .leaderboard-intro > .eyebrow { color: var(--signal); font-size: .76rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.legal-main > h1 { max-width: 800px; margin: 1.4rem 0 2rem; font-size: clamp(3.5rem, 8vw, 7rem); font-weight: 600; letter-spacing: -.065em; line-height: .92; }
.legal-lede { margin: 0 0 5rem; max-width: 760px; color: #555650; font-size: clamp(1rem, 1.7vw, 1.2rem); line-height: 1.7; }
.legal-main section { padding: 2.3rem 0; border-top: 1px solid var(--line); }
.legal-main section h2 { margin: 0 0 1rem; font-size: .86rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.legal-main section p, .license-text { color: #555650; line-height: 1.78; }
.legal-main section a { color: var(--signal); }
.license-text { margin: 0; white-space: pre-wrap; font-family: "DM Mono", monospace; font-size: .84rem; }

.leaderboard-main { min-height: 80vh; padding: clamp(5rem, 9vw, 8rem) clamp(1.2rem, 4vw, 4rem); }
.leaderboard-intro, .qualification-section, .board-section, .submission-note, .test-spec-section { max-width: var(--max); margin-inline: auto; }
.leaderboard-intro { margin-bottom: 6rem; }
.leaderboard-intro h1 { max-width: 1100px; margin: 1.4rem 0 2rem; font-size: clamp(3.8rem, 8vw, 7.8rem); font-weight: 600; letter-spacing: -.065em; line-height: .9; }
.leaderboard-intro .legal-lede { margin-bottom: 0; }
.board-source { display: flex; justify-content: space-between; gap: 2rem; margin-top: 2.4rem; padding: 1rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: .92rem; }
.board-source span { color: var(--signal); font-weight: 650; letter-spacing: .025em; text-transform: uppercase; }
.board-source strong { font-weight: 600; text-align: right; }
.qualification-section { margin-bottom: 6rem; }
.qualification-heading { display: grid; grid-template-columns: minmax(170px, .42fr) 1.58fr; column-gap: clamp(2rem, 7vw, 8rem); margin-bottom: 2rem; }
.qualification-heading .eyebrow { margin: .4rem 0 0; color: var(--signal); font-size: .76rem; font-weight: 650; letter-spacing: .04em; text-transform: uppercase; }
.qualification-heading h2 { margin: 0; font-size: clamp(2.5rem, 5vw, 5.2rem); font-weight: 600; letter-spacing: -.06em; line-height: .94; }
.qualification-heading > p:last-child { grid-column: 2; max-width: 760px; margin: 1.4rem 0 0; color: var(--muted); line-height: 1.7; }
.qualification-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--ink); }
.qualification-grid article { min-width: 0; padding: clamp(1.4rem, 2.5vw, 2.3rem); display: flex; flex-direction: column; }
.qualification-grid article + article { border-left: 1px solid var(--ink); }
.qualification-grid article > span { color: var(--signal); font-family: "DM Mono", monospace; font-size: .76rem; letter-spacing: .025em; text-transform: uppercase; }
.qualification-grid h3 { margin: 3rem 0 1.4rem; font-size: clamp(1.6rem, 2.4vw, 2.5rem); font-weight: 600; letter-spacing: -.045em; line-height: 1; }
.qualification-grid ul { margin: 0 0 2.5rem; padding-left: 1.15rem; color: var(--muted); }
.qualification-grid li { padding-left: .25rem; line-height: 1.6; }
.qualification-grid li + li { margin-top: .85rem; }
.qualification-grid strong { margin-top: auto; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--ink); font-size: .76rem; letter-spacing: .025em; line-height: 1.5; text-transform: uppercase; }
.board-section { margin-bottom: 6rem; }
.board-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: end; padding-bottom: 1rem; border-bottom: 1px solid var(--ink); }
.board-heading h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.7rem); font-weight: 600; letter-spacing: -.05em; }
.board-heading p { max-width: 640px; margin: 0; color: #5a5b55; font-size: .92rem; line-height: 1.65; }
.board-heading .board-inline-status { grid-column: 2; color: var(--signal); font-size: .78rem; font-weight: 650; letter-spacing: .025em; text-transform: uppercase; }
.board-table-wrap { overflow-x: auto; }
.board-table { width: 100%; border-collapse: collapse; font-size: .94rem; }
.board-table th, .board-table td { padding: 1.05rem .65rem; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
.board-table th { color: var(--signal); font-size: .8rem; font-weight: 650; letter-spacing: .025em; text-transform: uppercase; }
.board-table td { color: #4f504b; }
.board-table .score { color: var(--ink); font-family: "DM Mono", monospace; }
.board-table .empty-row td { padding: 3rem .65rem; color: var(--muted); white-space: normal; }
.board-table a { color: var(--signal); }
.submission-note { padding: clamp(2rem, 5vw, 4rem); color: var(--white); background: var(--ink); }
.submission-note h2 { margin: 1rem 0; font-size: clamp(2rem, 4vw, 4rem); font-weight: 600; letter-spacing: -.055em; }
.submission-note p { max-width: 800px; color: rgba(255,255,255,.62); line-height: 1.72; }
.submission-note .eyebrow { color: var(--signal); font-size: .76rem; font-weight: 600; text-transform: uppercase; }
.submission-note .text-link { display: inline-block; margin-top: 1rem; color: var(--white); font-size: .78rem; font-weight: 600; text-transform: uppercase; }
.test-spec-section { padding-top: clamp(5rem, 9vw, 9rem); }
.test-spec-heading { display: grid; grid-template-columns: minmax(170px, .42fr) 1.58fr; column-gap: clamp(2rem, 7vw, 8rem); margin-bottom: 2rem; }
.test-spec-heading .eyebrow { margin: .4rem 0 0; color: var(--signal); font-size: .76rem; font-weight: 650; letter-spacing: .04em; text-transform: uppercase; }
.test-spec-heading h2 { margin: 0; font-size: clamp(2.5rem, 5vw, 5.2rem); font-weight: 600; letter-spacing: -.06em; line-height: .94; }
.test-spec-heading > p:last-child { grid-column: 2; max-width: 800px; margin: 1.4rem 0 0; color: var(--muted); line-height: 1.7; }
.test-spec-heading-secondary { margin-top: clamp(5rem, 9vw, 9rem); }
.run-spec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; padding: 1px; background: var(--ink); }
.run-spec-grid article { min-width: 0; min-height: 320px; padding: clamp(1.4rem, 2.3vw, 2.2rem); display: flex; flex-direction: column; background: var(--paper); }
.run-spec-grid span, .test-difficulty-grid header span { color: var(--signal); font-family: "DM Mono", monospace; font-size: .76rem; letter-spacing: .025em; text-transform: uppercase; }
.run-spec-grid h3 { margin: auto 0 1.3rem; font-size: clamp(1.45rem, 2.2vw, 2.2rem); font-weight: 600; letter-spacing: -.04em; line-height: 1.02; }
.run-spec-grid p { margin: 0; color: var(--muted); font-size: .9rem; line-height: 1.65; }
.test-difficulty-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; padding: 1px; background: var(--ink); }
.test-difficulty-grid article { min-width: 0; padding: clamp(1.4rem, 2.4vw, 2.3rem); background: var(--paper); }
.test-difficulty-grid header { display: grid; grid-template-columns: 42px 1fr; gap: 1rem; align-items: start; margin-bottom: 2rem; }
.test-difficulty-grid h3 { margin: 0; font-size: clamp(1.45rem, 2.2vw, 2.25rem); font-weight: 600; letter-spacing: -.045em; line-height: 1; }
.test-difficulty-grid dl { margin: 0; }
.test-difficulty-grid dl div { padding: 1rem 0; border-top: 1px solid var(--line); }
.test-difficulty-grid dt { margin-bottom: .5rem; color: var(--signal); font-size: .72rem; font-weight: 650; letter-spacing: .035em; text-transform: uppercase; }
.test-difficulty-grid dd { margin: 0; color: var(--muted); font-size: .9rem; line-height: 1.62; }

@media (min-width: 561px) and (max-width: 900px) {
  .test-difficulty-grid article:last-child { grid-column: 1 / -1; }
  .test-difficulty-grid article:last-child dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(2rem, 7vw, 8rem); }
}

.runner-page { min-width: 320px; }
.runner-main { max-width: var(--max); margin: auto; padding: clamp(4rem, 8vw, 8rem) clamp(1.2rem, 4vw, 4rem); }
.runner-intro { display: grid; grid-template-columns: minmax(180px, .42fr) 1.58fr; column-gap: clamp(2rem, 7vw, 8rem); padding-bottom: clamp(4rem, 8vw, 8rem); }
.runner-intro .eyebrow, .runner-method .eyebrow, .runner-result .eyebrow { margin: .3rem 0 0; color: var(--signal); font-size: .86rem; font-weight: 700; letter-spacing: .045em; text-transform: uppercase; }
.runner-intro h1 { grid-column: 2; margin: -1.2rem 0 2rem; font-size: clamp(3.5rem, 7vw, 7.4rem); font-weight: 600; letter-spacing: -.065em; line-height: .91; }
.runner-lede { grid-column: 2; max-width: 820px; margin: 0; color: #4f504c; font-size: clamp(1.08rem, 1.5vw, 1.3rem); line-height: 1.72; }
.runner-layout { display: grid; grid-template-columns: minmax(320px, .72fr) minmax(500px, 1.28fr); border: 1px solid var(--ink); }
.runner-method { padding: clamp(2rem, 4vw, 4rem); color: var(--white); background: var(--ink); }
.runner-method h2 { margin: 1rem 0 clamp(3rem, 6vw, 6rem); font-size: clamp(2.2rem, 4vw, 4.4rem); font-weight: 600; letter-spacing: -.055em; line-height: .96; }
.runner-method ol { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.35); }
.runner-method li { display: grid; grid-template-columns: 52px 1fr; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid rgba(255,255,255,.25); }
.runner-method li span { color: var(--signal); font-family: "DM Mono", monospace; font-size: .9rem; }
.runner-method li p, .runner-boundary p { margin: 0; color: rgba(255,255,255,.72); font-size: 1rem; line-height: 1.65; }
.runner-boundary { margin-top: 3rem; padding-top: 1.25rem; border-top: 2px solid var(--white); }
.runner-boundary h3 { margin: 0 0 .75rem; font-size: 1rem; letter-spacing: .04em; text-transform: uppercase; }
.runner-boundary p + p { margin-top: 1rem; }
.runner-boundary a { display: inline-block; margin-top: 1.2rem; color: var(--white); font-size: .95rem; text-underline-offset: .3rem; }
.runner-form { padding: clamp(2rem, 4vw, 4rem); background: var(--paper-2); }
.runner-form fieldset { margin: 0; padding: 0 0 2.2rem; border: 0; }
.runner-form fieldset + fieldset { padding-top: 2.2rem; border-top: 1px solid var(--line); }
.runner-form legend { width: 100%; padding: 0; font-size: clamp(1.35rem, 2vw, 1.75rem); font-weight: 650; letter-spacing: -.035em; }
.runner-form legend span { margin-right: .75rem; color: var(--signal); font-family: "DM Mono", monospace; font-size: 1rem; font-weight: 500; }
.field-note { margin: .55rem 0 1.6rem; color: var(--muted); font-size: 1rem; line-height: 1.55; }
.field-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 1rem; }
.runner-form label:not(.runner-consent) { display: block; margin: 0 0 .55rem; font-size: 1rem; font-weight: 650; }
.runner-form select, .runner-form input:not([type="checkbox"]) { width: 100%; min-height: 54px; margin: 0 0 1.25rem; padding: .85rem 1rem; color: var(--ink); background: var(--paper); border: 1px solid var(--ink); border-radius: 0; font: 600 1rem/1.2 "Manrope", sans-serif; }
.runner-form input:focus, .runner-form select:focus, .runner-submit:focus { outline: 3px solid rgba(196,61,39,.32); outline-offset: 2px; }
.runner-consent { display: grid; grid-template-columns: 22px 1fr; gap: .9rem; margin: 0 0 1.5rem; padding: 1.2rem; color: var(--white); background: var(--ink); cursor: pointer; }
.runner-consent input { width: 20px; height: 20px; margin: .2rem 0 0; accent-color: var(--signal); }
.runner-consent span { font-size: 1rem; line-height: 1.55; }
.runner-submit { width: 100%; min-height: 60px; padding: 1rem; color: var(--white); background: var(--signal); border: 1px solid var(--signal); border-radius: 0; font: 700 1.05rem/1 "Manrope", sans-serif; cursor: pointer; }
.runner-submit:hover { color: var(--ink); background: transparent; border-color: var(--ink); }
.runner-submit:disabled { color: var(--muted); background: transparent; border-color: var(--line); cursor: wait; }
.runner-options h2 { margin: 0 0 2.5rem; font-size: clamp(2rem, 4vw, 4rem); font-weight: 600; letter-spacing: -.055em; line-height: .96; }
.runner-options article { display: grid; grid-template-columns: 48px 1fr; gap: 1rem; padding: 2rem 0; border-top: 1px solid var(--line); }
.runner-options .option-index { padding-top: .25rem; color: var(--signal); font-family: "DM Mono", monospace; font-size: .9rem; }
.runner-options h3 { margin: 0 0 .75rem; font-size: clamp(1.4rem, 2vw, 1.9rem); letter-spacing: -.035em; }
.runner-options article p { margin: 0 0 1.5rem; color: var(--muted); font-size: 1rem; line-height: 1.65; }
.runner-options .runner-submit { display: flex; align-items: center; justify-content: center; text-decoration: none; }
.runner-options .runner-submit-dark { color: var(--white); background: var(--ink); border-color: var(--ink); }
.runner-options .runner-submit-dark:hover { color: var(--ink); background: transparent; }
.runner-options > .field-note { margin: 1.25rem 0 0; font-size: .9rem; }
.visually-hidden { position:absolute !important; width:1px !important; height:1px !important; padding:0 !important; margin:-1px !important; overflow:hidden !important; clip:rect(0,0,0,0) !important; white-space:nowrap !important; border:0 !important; }
.runner-status { margin-top: 1.4rem; padding-top: 1.4rem; display: grid; grid-template-columns: minmax(120px, .35fr) 1fr; gap: 1rem; border-top: 1px solid var(--line); }
.runner-status strong { color: var(--signal); font-size: 1rem; }
.runner-status span { color: var(--muted); font-size: 1rem; line-height: 1.55; }
.runner-result { margin-top: 4rem; padding: clamp(2rem, 4vw, 4rem); color: var(--white); background: var(--ink); }
.runner-result h2 { margin: 1rem 0 2rem; font-size: clamp(2.6rem, 5vw, 5rem); font-weight: 600; letter-spacing: -.055em; }
.runner-result pre { margin: 0; padding: 1.4rem; overflow: auto; color: var(--white); background: #24262b; border: 1px solid rgba(255,255,255,.28); font: 500 .96rem/1.65 "DM Mono", monospace; white-space: pre-wrap; overflow-wrap: anywhere; }
.runner-download { display: inline-block; margin: 1.5rem 0; padding: 1rem 1.2rem; color: var(--ink); background: var(--white); font-size: 1rem; font-weight: 700; text-decoration: none; }
.runner-result details { margin-top: 1.5rem; }
.runner-result summary { padding: 1rem 0; font-size: 1rem; cursor: pointer; }
.runner-result > p:last-child { max-width: 800px; margin: 2rem 0 0; color: rgba(255,255,255,.7); font-size: 1rem; line-height: 1.65; }

@media (max-width: 850px) {
  nav a:not(:last-child) { display: none; }
  .publication-hero, .research-section { grid-template-columns: 1fr; }
  .publication-meta { display: none; }
  .protocol-scroll { height: auto; margin-inline: 1.2rem; }
  .protocol-stage { height: auto; min-height: 0; position: static; grid-template-columns: 1fr; overflow: visible; }
  .protocol-visual { min-height: min(72vw, 560px); border-right: 0; border-bottom: 1px solid var(--ink); }
  .protocol-heading { grid-template-columns: .8fr 1.6fr auto; }
  .protocol-steps { display: block; }
  .protocol-step { min-height: 150px; color: var(--ink); }
  .protocol-step > span { color: var(--signal); }
  .protocol-progress { display: none; }
  .instrument-scroll { height: auto; }
  .instrument-stage { height: auto; min-height: 0; position: static; }
  .instrument-media { min-height: 58vw; }
  .instrument-media img { transform: none; }
  .instrument-notes { padding: 1rem; position: absolute; display: flex; flex-direction: column; justify-content: flex-end; gap: .55rem; }
  .instrument-note:nth-child(n) { max-width: 420px; position: static; color: var(--white); opacity: 1; transform: none; }
  .instrument-stage figcaption { grid-template-columns: 110px 1fr; }
  .instrument-stage figcaption p { grid-column: 2; }
  .section-index { margin-bottom: 3rem; }
  .attribution-grid, .board-heading { grid-template-columns: 1fr; }
  .run-choices-heading { grid-template-columns: 1fr; }
  .run-choices-heading > span { margin-bottom: 2.5rem; }
  .run-choices-heading p { grid-column: 1; }
  .run-choice-grid { grid-template-columns: 1fr; }
  .run-choice-grid article + article { border-left: 0; border-top: 1px solid var(--ink); }
  .runner-intro, .runner-layout { grid-template-columns: 1fr; }
  .runner-intro h1, .runner-lede { grid-column: 1; }
  .runner-intro h1 { margin: 2.5rem 0 2rem; }
  .board-heading .board-inline-status { grid-column: auto; }
  .qualification-heading { grid-template-columns: 1fr; }
  .qualification-heading .eyebrow { margin-bottom: 2rem; }
  .qualification-heading > p:last-child { grid-column: 1; }
  .qualification-grid { grid-template-columns: 1fr; }
  .qualification-grid article + article { border-left: 0; border-top: 1px solid var(--ink); }
  .test-spec-heading { grid-template-columns: 1fr; }
  .test-spec-heading .eyebrow { margin-bottom: 2rem; }
  .test-spec-heading > p:last-child { grid-column: 1; }
  .run-spec-grid { grid-template-columns: repeat(2, 1fr); }
  .test-difficulty-grid { grid-template-columns: repeat(2, 1fr); }
  .attribution-grid > article + article { border-left: 0; border-top: 1px solid var(--ink); }
  .attribution-example > header { grid-template-columns: 1fr; }
  .attribution-example > header span { margin-bottom: 2rem; }
  .attribution-example > header p { grid-column: 1; }
  footer { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}

@media (max-width: 560px) {
  .publication-title .kicker, .publication-title h1 { font-size: clamp(1.8rem, 9.4vw, 3.1rem); letter-spacing: -.055em; line-height: 1; }
  .leaderboard-intro h1 { font-size: clamp(2.8rem, 14vw, 3.8rem); }
  .publication-links { display: grid; }
  .run-spec-grid, .test-difficulty-grid { grid-template-columns: 1fr; }
  .protocol-scroll { margin-inline: 0; border-inline: 0; }
  .protocol-visual { min-height: 78vw; }
  .protocol-heading { grid-template-columns: 1fr auto; }
  .protocol-heading p { grid-column: 1 / -1; grid-row: 2; }
  .protocol-step { grid-template-columns: 58px 1fr; }
  .protocol-annotation span:last-child { display: none; }
  .instrument-media { min-height: 130vw; }
  .instrument-media img { object-position: 62% center; }
  .instrument-note { max-width: calc(100vw - 2rem); }
  .instrument-note p { font-size: .8rem; }
  .instrument-stage figcaption { grid-template-columns: 1fr; gap: .7rem; }
  .instrument-stage figcaption p { grid-column: 1; }
  .field-grid, .runner-status { grid-template-columns: 1fr; gap: 0; }
  .measure-directory { grid-template-columns: 1fr; }
  .measure-directory article { min-height: 165px; }
  .attribution-grid dl div { grid-template-columns: 1fr; gap: .4rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .protocol-scroll { height: auto; }
  .protocol-stage { height: auto; min-height: 0; position: static; grid-template-columns: 1fr; }
  .protocol-visual { min-height: min(70vw, 620px); border-right: 0; border-bottom: 1px solid var(--ink); }
  .protocol-image { transition: none; }
  .protocol-step { color: var(--ink); }
  .protocol-step > span { color: var(--signal); }
  .protocol-progress { display: none; }
  .instrument-scroll { height: auto; }
  .instrument-stage { height: auto; min-height: 0; position: static; }
  .instrument-media { min-height: min(72vw, 700px); }
  .instrument-media img { transform: none; }
  .instrument-note { color: var(--white); opacity: 1; transform: none; }
}

/* Tripwires: the six abilities where a decoy is planted in memory and a
   retrieval-only system surfaces it. Presented as a spec grid, not a table,
   because each wire needs three fields of explanation rather than a number. */
.tripwire-section { max-width: var(--max); margin: 0 auto 6rem; }
.tripwire-heading { display: grid; grid-template-columns: minmax(170px, .42fr) 1.58fr; column-gap: clamp(2rem, 7vw, 8rem); margin-bottom: 3rem; }
.tripwire-heading .eyebrow { margin: .4rem 0 0; color: var(--signal); font-size: .76rem; font-weight: 650; letter-spacing: .04em; text-transform: uppercase; }
.tripwire-heading h2 { grid-column: 2; margin: 0 0 1.6rem; font-size: clamp(2.6rem, 5.5vw, 5.4rem); font-weight: 600; letter-spacing: -.06em; line-height: .94; }
.tripwire-heading p { grid-column: 2; max-width: 800px; margin: 0 0 1.1rem; color: #5a5b55; font-size: 1rem; line-height: 1.72; }
.tripwire-heading b { color: var(--ink); font-weight: 650; }
.tripwire-heading i { font-style: italic; }
/* Exactly three columns so the six wires fill two complete rows. An auto-fit
   track count leaves empty cells that read as grey holes in the grid. */
.tripwire-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-bottom: 4rem; background: var(--line); border: 1px solid var(--line); }
.tripwire { padding: 2rem 1.8rem; background: var(--paper); }
.tripwire header span { color: var(--signal); font-size: .74rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.tripwire header h3 { margin: .5rem 0 1.4rem; font-size: 1.35rem; font-weight: 600; letter-spacing: -.03em; line-height: 1.2; }
.tripwire dl { margin: 0; }
.tripwire dl > div { padding: .85rem 0; border-top: 1px solid var(--line); }
.tripwire dt { color: #85867f; font-size: .68rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.tripwire dd { margin: .35rem 0 0; color: #4f504b; font-size: .88rem; line-height: 1.6; }
.tripwire code { font-family: "DM Mono", monospace; font-size: .82rem; color: var(--ink); }
.tripwire-board { padding-top: 1rem; }
.tripwire-board .board-heading h3 { margin: 0; font-size: clamp(1.6rem, 3vw, 2.6rem); font-weight: 600; letter-spacing: -.045em; }

@media (max-width: 1180px) {
  .tripwire-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .tripwire-heading { grid-template-columns: 1fr; }
  .tripwire-heading .eyebrow { margin-bottom: 2rem; }
  .tripwire-heading h2, .tripwire-heading p { grid-column: 1; }
}

@media (max-width: 700px) {
  .tripwire-grid { grid-template-columns: 1fr; }
}

/* Website submission form: the upload-certify-place pipeline lives on the
   leaderboard page itself now that the hosted Space is retired. */
.submit-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 1.2rem; align-items: end; margin: 2rem 0 1rem; }
.submit-field { display: grid; gap: .45rem; }
.submit-field span { color: var(--signal); font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.submit-field input { min-height: 3rem; padding: 0 .9rem; color: var(--ink); background: #fff; border: 1px solid var(--line); font: inherit; font-size: .9rem; }
.submit-field input[type="file"] { padding: .7rem .9rem; }
.submit-button { min-height: 3.2rem; padding: 0 2.2rem; color: #fff; background: var(--signal); border: 1px solid var(--signal); font: inherit; font-weight: 700; cursor: pointer; }
.submit-button:disabled { opacity: .55; cursor: wait; }
.submit-result .submit-pass { padding: 1rem 1.2rem; color: #17603f; background: #e7f2ea; border-left: 3px solid #2f7d5a; font-size: .92rem; }
.submit-result .submit-fail { padding: 1rem 1.2rem; color: #7c2416; background: #f7e8e4; border-left: 3px solid var(--signal); font-size: .92rem; }
.submit-result .submit-check { margin: 0; padding: .55rem 1.2rem; color: #4f504b; border-bottom: 1px solid var(--line); font-size: .82rem; }
@media (max-width: 900px) { .submit-form { grid-template-columns: 1fr; } }