:root {
  --bg: #080a09;
  --bg-deep: #050706;
  --panel: #0e110f;
  --panel-light: #131712;
  --ink: #eff1e9;
  --muted: #8f978e;
  --dim: #4f5a50;
  --line: rgba(216, 226, 206, .16);
  --line-bright: rgba(216, 226, 206, .31);
  --lime: #b9c96a;
  --lime-soft: #8f9f4e;
  --warm: #d4b66e;
  --shell: min(1320px, calc(100% - 96px));
  --sans: "Arial Narrow", "Aptos Narrow", "Segoe UI", sans-serif;
  --mono: "Courier New", "Lucida Console", monospace;
}

* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans); overflow-x: clip; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, figure, dl, dd { margin: 0; }
h1, h2, h3 { font-weight: 400; }
::selection { background: var(--lime); color: var(--bg); }

.shell { width: var(--shell); max-width: 1320px; margin-inline: auto; }
.mono { font-family: var(--mono); font-size: 10px; line-height: 1.4; letter-spacing: .1em; text-transform: uppercase; }
.section { position: relative; padding: 138px 0; border-top: 1px solid var(--line); }
.section-index { color: var(--lime); }
.section-head { display: grid; grid-template-columns: minmax(170px, .55fr) 1.45fr; gap: 42px; align-items: start; margin-bottom: 76px; }
.section-head h2 { font-size: clamp(3rem, 6.2vw, 6.7rem); line-height: .98; letter-spacing: -.065em; }
.section-head em { color: var(--lime); font-family: Georgia, "Times New Roman", serif; font-style: italic; font-weight: 400; letter-spacing: -.075em; }
.section-head .section-index { padding-top: 10px; }
.section-note { color: var(--muted); font-size: 15px; line-height: 1.8; }

.skip-link { position: fixed; z-index: 20; top: 14px; left: 18px; padding: 10px 16px; color: var(--bg); background: var(--lime); transform: translateY(-180%); transition: transform .2s ease; }
.skip-link:focus { transform: translateY(0); }
a:focus-visible { outline: 2px solid var(--lime); outline-offset: 5px; }

/* Header / hero */
.hero { position: relative; min-height: 100svh; background: var(--bg-deep); isolation: isolate; overflow: hidden; }
.hero::before { content: ""; position: absolute; z-index: -2; inset: 0; background: radial-gradient(circle at 74% 47%, rgba(140, 163, 83, .11), transparent 29%), radial-gradient(circle at 87% 93%, rgba(212, 182, 110, .08), transparent 24%); pointer-events: none; }
.hero::after { content: ""; position: absolute; z-index: -1; inset: 0; pointer-events: none; background: linear-gradient(90deg, rgba(5, 7, 6, .98) 0%, rgba(5, 7, 6, .88) 28%, rgba(5, 7, 6, .42) 54%, rgba(5, 7, 6, .1) 100%); }
.site-header { position: relative; z-index: 3; display: flex; align-items: center; justify-content: space-between; height: 88px; border-bottom: 1px solid var(--line); }
.wordmark { display: inline-flex; align-items: center; gap: 12px; font: 11px/1 var(--mono); letter-spacing: .12em; }
.wordmark-mark { display: inline-flex; align-items: center; gap: 4px; color: var(--lime); }
.wordmark-mark i { display: block; width: 19px; height: 1px; background: currentColor; transform: rotate(-26deg); }
.wordmark-mark i:last-child { transform: rotate(26deg); }
.wordmark-mark b { display: block; width: 5px; height: 5px; border-radius: 50%; background: var(--warm); }
.wordmark-slash { padding: 0 7px; color: var(--lime); }
.header-cta { display: inline-flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--lime); padding: 11px 0; font: 10px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; transition: color .25s ease, border-color .25s ease; }
.header-cta b { color: var(--lime); font: 18px/1 var(--sans); font-weight: 400; transition: transform .25s ease; }
.header-cta:hover { color: var(--lime); }
.header-cta:hover b { transform: translate(3px, -3px); }
.hero-frame { display: flex; min-height: calc(100svh - 88px); flex-direction: column; padding: 24px 0 24px; }
.hero-meta, .hero-bottom { display: flex; align-items: center; justify-content: space-between; gap: 24px; color: var(--muted); }
.hero-meta { position: relative; z-index: 2; }
.status-dot { display: inline-block; width: 6px; height: 6px; margin: 0 8px 1px 0; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 4px rgba(185, 201, 106, .09); }
.hero-content { position: relative; display: grid; flex: 1; grid-template-columns: minmax(0, .88fr) minmax(490px, 1.12fr); align-items: center; min-height: 660px; }
.hero-copy { position: relative; z-index: 2; max-width: 690px; padding: 80px 0 64px; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: var(--lime); }
.eyebrow i { color: var(--muted); font-style: normal; }
.hero-copy h1 { max-width: 100%; margin: 21px 0 22px; font-size: clamp(3.65rem, 7.2vw, 7.8rem); line-height: .86; letter-spacing: -.09em; white-space: nowrap; }
.hero-copy h1 span { font-weight: 300; }
.hero-copy h1 em { color: var(--lime); font-family: Georgia, "Times New Roman", serif; font-style: italic; font-weight: 400; letter-spacing: -.105em; }
.hero-copy h1 sup { display: inline-block; margin: -.1em 0 0 14px; color: var(--warm); font: 11px/1 var(--mono); letter-spacing: .08em; vertical-align: top; }
.hero-slogan { max-width: 540px; font-size: clamp(1.65rem, 2.8vw, 2.9rem); line-height: 1.06; letter-spacing: -.04em; }
.hero-lede { max-width: 490px; margin-top: 23px; color: var(--muted); font-size: 15px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; margin-top: 31px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: space-between; gap: 26px; padding: 14px 18px; border: 1px solid var(--lime); font: 11px/1 var(--mono); letter-spacing: .03em; transition: background .25s ease, color .25s ease, transform .25s ease; }
.button-primary { color: var(--bg); background: var(--lime); }
.button-primary span { font: 20px/1 var(--sans); }
.button:hover, .button:focus-visible { color: var(--bg); background: var(--warm); border-color: var(--warm); transform: translateY(-2px); }
.text-link { display: inline-flex; align-items: center; gap: 21px; padding: 12px 0; border-bottom: 1px solid var(--line-bright); color: var(--muted); font: 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; transition: color .25s ease, border-color .25s ease; }
.text-link span { color: var(--lime); font: 17px/1 var(--sans); transition: transform .25s ease; }
.text-link:hover { color: var(--ink); border-color: var(--lime); }
.text-link:hover span { transform: translateY(3px); }
.hero-bottom { padding-top: 20px; border-top: 1px solid var(--line); }
.hero-bottom b { padding-left: 8px; color: var(--lime); font: 18px/1 var(--sans); }

/* Behavior field */
.behavior-field { position: absolute; z-index: 0; top: 15px; right: 0; width: min(73vw, 920px); color: var(--lime); opacity: .89; }
.field-heading, .field-caption { display: flex; justify-content: space-between; gap: 20px; color: var(--muted); }
.field-heading { padding: 0 2px 12px; border-bottom: 1px solid var(--line); }
.field-svg { display: block; width: 100%; height: auto; overflow: visible; }
.field-caption { padding: 11px 2px 0; border-top: 1px solid var(--line); }
.field-grid { color: rgba(205, 225, 184, .1); }
.field-grid path { fill: none; stroke: currentColor; stroke-width: 1; }
.field-crop-marks { color: var(--dim); fill: none; stroke: currentColor; stroke-width: 1; }
.trajectory { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.trajectory.observed { color: var(--lime); stroke: currentColor; stroke-width: 2; stroke-dasharray: 1 0; }
.trajectory.predicted { color: var(--muted); stroke: currentColor; stroke-width: 1.4; stroke-dasharray: 7 10; animation: path-dash 18s linear infinite; }
.trajectory.secondary { color: var(--warm); stroke: currentColor; stroke-width: 1; opacity: .46; stroke-dasharray: 2 9; animation: path-dash-reverse 16s linear infinite; }
.trajectory-ticks { fill: var(--muted); font-size: 9px; }
.axis { color: var(--dim); fill: currentColor; stroke: currentColor; stroke-width: 1; }
.axis text { stroke: none; fill: currentColor; }
.object-a, .object-b, .interaction, .vector, .field-callouts { vector-effect: non-scaling-stroke; }
.object-a { color: var(--lime); fill: rgba(185, 201, 106, .1); stroke: currentColor; stroke-width: 1.5; transform-origin: 372px 214px; animation: sphere-travel 15s cubic-bezier(.37, 0, .2, 1) infinite; }
.object-a .object-core { fill: currentColor; stroke: none; }
.object-a text, .object-b text, .interaction text, .vector text, .field-callouts { fill: currentColor; stroke: none; font-size: 9px; letter-spacing: .08em; }
.object-a .object-note, .object-b .object-note { fill: var(--muted); }
.object-b { color: var(--warm); fill: rgba(212, 182, 110, .08); stroke: currentColor; stroke-width: 1.4; transform-origin: 653px 334px; animation: block-response 15s cubic-bezier(.37, 0, .2, 1) infinite; }
.object-b .object-cross { fill: none; stroke: currentColor; stroke-width: 1; opacity: .6; }
.interaction { color: var(--warm); fill: none; stroke: currentColor; stroke-width: 1; }
.interaction-point { fill: currentColor; stroke: currentColor; }
.interaction-ring { opacity: .5; stroke-dasharray: 1 6; animation: interaction-orbit 8s linear infinite; }
.interaction-cross { opacity: .3; stroke-dasharray: 3 7; }
.vector { fill: none; stroke-width: 1.4; }
.vector-a { color: var(--lime); }
.vector-b { color: var(--warm); }
.vector text { fill: currentColor; }
.field-callouts { fill: var(--muted); font-size: 9px; }

/* Reveal */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .75s ease, transform .75s cubic-bezier(.2, .8, .2, 1); }
.js .reveal.is-visible { opacity: 1; transform: none; }
.hero .reveal:nth-child(2) { transition-delay: .08s; }
.hero .reveal:nth-child(3) { transition-delay: .15s; }
.hero .reveal:nth-child(4) { transition-delay: .22s; }
.hero .reveal:nth-child(5) { transition-delay: .29s; }

/* Meaning */
.meaning { background: var(--bg); }
.meaning-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); align-items: end; gap: 8%; }
.meaning-grid > * { min-width: 0; }
.meaning-word { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; align-items: end; min-width: 0; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.meaning-behavior { padding-top: 100px; }
.word-index { display: block; margin-bottom: 13px; color: var(--lime); }
.meaning-word h3 { font-size: clamp(3rem, 8.4vw, 9rem); line-height: .82; letter-spacing: -.08em; white-space: nowrap; }
.meaning-physical h3 { color: var(--ink); }
.meaning-behavior h3 { color: var(--lime); font-family: Georgia, "Times New Roman", serif; font-style: italic; }
.meaning-word p { max-width: 240px; color: var(--muted); font-size: 15px; line-height: 1.7; }
.meaning-close { max-width: 720px; margin: 75px auto 0; text-align: center; font-size: clamp(1.8rem, 3.2vw, 3.55rem); line-height: 1.15; letter-spacing: -.045em; }

/* Loop */
.loop-section { background: var(--panel); }
.loop-layout { display: grid; grid-template-columns: minmax(0, .55fr) minmax(0, 1.45fr); gap: 60px; align-items: center; }
.loop-layout > * { min-width: 0; }
.loop-visual svg { display: block; width: 100%; height: auto; overflow: visible; }
.loop-orbit, .loop-flow { fill: none; stroke-linecap: round; }
.loop-orbit { color: var(--line-bright); stroke: currentColor; stroke-width: 1; stroke-dasharray: 2 10; }
.loop-flow { color: var(--lime); stroke: currentColor; stroke-width: 1.3; stroke-dasharray: 26 14 2 14; animation: path-dash 18s linear infinite; }
.loop-crosshair { fill: none; color: var(--dim); stroke: currentColor; stroke-width: 1; stroke-dasharray: 1 7; }
.loop-center-dot { fill: var(--warm); }
.loop-center { fill: var(--ink); font-size: 10px; letter-spacing: .16em; }
.loop-node { color: var(--lime); fill: var(--bg); stroke: currentColor; stroke-width: 1.5; }
.loop-node text { fill: currentColor; stroke: none; font-size: 10px; letter-spacing: .12em; }
.loop-node circle { transform-box: fill-box; transform-origin: center; animation: node-pulse 6s ease-in-out infinite; }
.node-act circle { animation-delay: -1.2s; }
.node-interact circle { animation-delay: -2.4s; }
.node-respond circle { animation-delay: -3.6s; }
.node-adapt circle { color: var(--warm); animation-delay: -4.8s; }

/* Linear systems */
.physics-section { background: var(--bg); }
.physics-list { border-top: 1px solid var(--line); }
.physics-row { display: grid; grid-template-columns: 70px minmax(190px, .75fr) 1.2fr 36px; gap: 20px; align-items: center; min-height: 100px; border-bottom: 1px solid var(--line); transition: padding .35s ease, background .35s ease; }
.physics-row:hover { padding-inline: 16px; background: rgba(185, 201, 106, .035); }
.row-number { color: var(--lime); }
.physics-row h3 { font-size: clamp(1.35rem, 2.35vw, 2.45rem); letter-spacing: -.04em; }
.physics-row p { color: var(--muted); font-size: 15px; }
.row-mark { color: var(--lime); font-size: 20px; opacity: .5; transition: opacity .25s ease, transform .25s ease; }
.physics-row:hover .row-mark { opacity: 1; transform: translate(3px, -3px); }

/* Applications */
.applications { background: var(--panel); }
.application-list { border-top: 1px solid var(--line); }
.application-row { position: relative; display: grid; grid-template-columns: 70px minmax(0, 1fr) minmax(150px, .8fr); gap: 20px; align-items: center; min-height: 92px; border-bottom: 1px solid var(--line); transition: padding .35s ease; }
.application-row:hover { padding-inline: 16px; }
.app-number { align-self: start; padding-top: 27px; color: var(--lime); }
.application-row h3 { margin-bottom: 5px; font-size: clamp(1.35rem, 2.2vw, 2.3rem); letter-spacing: -.04em; transition: color .25s ease; }
.application-row p { color: var(--muted); font-size: 14px; }
.application-row:hover h3 { color: var(--lime); }
.app-line { justify-self: stretch; height: 1px; background: var(--lime); transform: scaleX(0); transform-origin: right; transition: transform .45s cubic-bezier(.2, .8, .2, 1); }
.application-row:hover .app-line { transform: scaleX(1); transform-origin: left; }

/* Lab */
.lab-section { background: var(--bg-deep); }
.lab-top, .asset-top { display: flex; justify-content: space-between; gap: 25px; color: var(--muted); }
.lab-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; padding: 80px 0 28px; }
.lab-heading h2 { font-size: clamp(3rem, 6vw, 6.1rem); line-height: .9; letter-spacing: -.07em; }
.lab-heading p { padding-bottom: 6px; color: var(--lime); }
.lab-field { border: 1px solid var(--line); background: radial-gradient(circle at 51% 42%, rgba(185, 201, 106, .09), transparent 34%), var(--panel); }
.lab-state, .lab-caption { display: flex; justify-content: space-between; gap: 20px; color: var(--muted); }
.lab-state { padding: 14px 18px; border-bottom: 1px solid var(--line); }
.lab-field svg { display: block; width: 100%; height: auto; }
.lab-baseline { color: var(--line-bright); fill: none; stroke: currentColor; stroke-width: 1; }
.lab-track, .lab-predicted { fill: none; stroke-linecap: round; }
.lab-track { color: var(--lime); stroke: currentColor; stroke-width: 2; }
.lab-predicted { color: var(--muted); stroke: currentColor; stroke-width: 1; stroke-dasharray: 5 8; opacity: .55; }
.lab-arrow-line { color: var(--warm); fill: none; stroke: currentColor; stroke-width: 1.2; stroke-dasharray: 2 6; }
.lab-ball { color: var(--lime); fill: rgba(185, 201, 106, .12); stroke: currentColor; stroke-width: 2; transform-origin: 94px 280px; animation: lab-ball-travel 13s cubic-bezier(.4, 0, .2, 1) infinite; }
.lab-ball circle:last-child { fill: currentColor; stroke: none; }
.lab-block { color: var(--warm); fill: rgba(212, 182, 110, .08); stroke: currentColor; stroke-width: 1.5; transform-origin: 501px 301px; animation: lab-block-react 13s cubic-bezier(.4, 0, .2, 1) infinite; }
.lab-block path, .lab-contact path { fill: none; stroke: currentColor; stroke-width: 1; }
.lab-contact { color: var(--warm); fill: none; stroke: currentColor; stroke-width: 1; }
.lab-contact text, .lab-labels { fill: var(--muted); stroke: none; font-size: 10px; letter-spacing: .08em; }
.lab-contact circle { fill: var(--warm); stroke: none; animation: node-pulse 5s ease-in-out infinite; }
.lab-target { color: var(--lime); fill: none; stroke: currentColor; stroke-width: 1; }
.lab-target circle:nth-child(2) { fill: currentColor; stroke: none; }
.lab-center-word { fill: var(--lime); font: italic 32px Georgia, serif; letter-spacing: -.04em; opacity: .7; }
.lab-caption { padding: 14px 18px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.lab-caption .mono { color: var(--lime); }

/* Compare */
.compare-section { background: var(--panel); }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; border: 1px solid var(--line); background: var(--line); }
.compare-panel { min-width: 0; padding: 18px; background: var(--panel); }
.compare-label { display: flex; justify-content: space-between; gap: 20px; color: var(--muted); }
.compare-panel svg { display: block; width: 100%; margin-top: 32px; overflow: visible; }
.compare-gridline { fill: none; stroke: var(--line); stroke-width: 1; }
.compare-traj { fill: none; stroke-linecap: round; stroke-width: 2; }
.compare-dash { color: var(--muted); stroke: currentColor; stroke-dasharray: 7 9; animation: path-dash 15s linear infinite; }
.compare-solid { color: var(--lime); stroke: currentColor; }
.compare-node { fill: var(--bg); stroke: var(--lime); stroke-width: 2; }
.compare-node-warm { stroke: var(--warm); }
.compare-vector { stroke: var(--lime); stroke-width: 1.3; }
.compare-vector-warm { stroke: var(--warm); }
.compare-close { max-width: 700px; margin: 70px auto 0; text-align: center; color: var(--ink); font-size: clamp(1.8rem, 3.3vw, 3.5rem); line-height: 1.12; letter-spacing: -.045em; }

/* Specimen / why */
.specimen-section { background: var(--bg); }
.specimen-grid { display: grid; grid-template-columns: minmax(0, .65fr) minmax(0, 1.35fr); gap: 8%; }
.specimen-grid > * { min-width: 0; }
.specimen-intro { max-width: 230px; color: var(--muted); font-size: 15px; line-height: 1.8; }
.specimen-intro .mono { margin-bottom: 22px; color: var(--lime); font-size: 9px; }
.specimen-list { border-top: 1px solid var(--line); }
.specimen-list > div { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; min-height: 74px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.specimen-list strong { font-size: clamp(1.5rem, 3.1vw, 3.25rem); font-weight: 300; letter-spacing: -.06em; }
.specimen-list span { color: var(--lime); }
.why-section { background: var(--panel); }
.why-list { border-top: 1px solid var(--line); }
.why-row { display: grid; grid-template-columns: 100px 1fr 38px; gap: 20px; align-items: start; padding: 29px 0 33px; border-bottom: 1px solid var(--line); }
.why-number { color: var(--lime); font: clamp(3rem, 5.4vw, 5.4rem)/.8 var(--sans); letter-spacing: -.09em; }
.why-row h3 { margin-bottom: 9px; font-size: clamp(1.7rem, 3.3vw, 3.35rem); line-height: 1; letter-spacing: -.055em; }
.why-row p { max-width: 660px; color: var(--muted); font-size: 15px; line-height: 1.75; }
.why-arrow { color: var(--lime); font-size: 22px; opacity: .55; transition: opacity .25s ease, transform .25s ease; }
.why-row:hover .why-arrow { opacity: 1; transform: translate(3px, -3px); }

/* Asset */
.asset-section { background: var(--bg); }
.asset-card { margin-top: 48px; border: 1px solid var(--line-bright); background: linear-gradient(135deg, rgba(185, 201, 106, .04), transparent 50%), var(--panel); }
.asset-card-head, .asset-card-foot { display: flex; justify-content: space-between; gap: 20px; padding: 18px 22px; color: var(--muted); }
.asset-card-head { border-bottom: 1px solid var(--line); }
.asset-state { color: var(--lime); }
.asset-card h2 { padding: 45px 22px 52px; font-size: clamp(3.25rem, 8.1vw, 8.5rem); line-height: .83; letter-spacing: -.09em; }
.asset-card h2 span { color: var(--lime); font-family: Georgia, "Times New Roman", serif; font-size: .58em; font-style: italic; letter-spacing: -.08em; }
.asset-data { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.asset-data dl { min-height: 106px; padding: 18px 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.asset-data dl:nth-child(3n) { border-right: 0; }
.asset-data dt { color: var(--muted); font: 10px/1.4 var(--mono); letter-spacing: .1em; }
.asset-data dd { margin-top: 19px; color: var(--ink); font: 13px/1.5 var(--mono); }
.asset-card-foot { border-top: 0; }

/* CTA / footer */
.final-cta { position: relative; padding: 170px 0 175px; background: var(--lime); color: var(--bg); overflow: hidden; }
.final-cta::after { content: "PB"; position: absolute; right: -3vw; bottom: -13vw; color: rgba(8, 10, 9, .08); font: 48vw/.75 var(--sans); font-weight: 700; letter-spacing: -.15em; pointer-events: none; }
.final-cta .shell { position: relative; z-index: 1; }
.final-cta .section-index { color: var(--bg); }
.final-cta h2 { margin-top: 38px; font-size: clamp(5rem, 15.3vw, 15rem); line-height: .75; letter-spacing: -.105em; }
.final-cta h2 span { display: block; margin-left: 12%; font-family: Georgia, "Times New Roman", serif; font-style: italic; font-weight: 400; letter-spacing: -.12em; }
.final-lede { max-width: 520px; margin: 53px 0 30px 12%; font-size: 18px; line-height: 1.55; }
.final-cta .button-primary { color: var(--lime); background: var(--bg); border-color: var(--bg); margin-left: 12%; }
.final-cta .button:hover, .final-cta .button:focus-visible { color: var(--bg); background: var(--warm); border-color: var(--warm); }
.secure-note { margin: 22px 0 0 12%; color: rgba(8, 10, 9, .68); }
.site-footer { background: var(--bg-deep); }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr auto; gap: 30px; padding: 30px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.footer-grid span:first-child { color: var(--ink); }
.footer-grid a { color: var(--lime); font: 10px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.footer-grid b { font: 16px/1 var(--sans); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 18px 0 24px; color: var(--dim); }

/* Motion */
@keyframes path-dash { to { stroke-dashoffset: -240; } }
@keyframes path-dash-reverse { to { stroke-dashoffset: 180; } }
@keyframes interaction-orbit { to { transform: rotate(360deg); transform-origin: 653px 334px; } }
@keyframes sphere-travel {
  0%, 12% { transform: translate(0, 0); }
  40% { transform: translate(91px, 49px); }
  51% { transform: translate(128px, 105px); }
  62% { transform: translate(193px, 119px); }
  76%, 100% { transform: translate(260px, 14px); }
}
@keyframes block-response {
  0%, 46% { transform: translate(0, 0) rotate(0deg); }
  52% { transform: translate(12px, 2px) rotate(2deg); }
  58% { transform: translate(-6px, -1px) rotate(-1deg); }
  66%, 100% { transform: translate(3px, 0) rotate(0deg); }
}
@keyframes node-pulse { 0%, 100% { transform: scale(1); opacity: .85; } 50% { transform: scale(1.55); opacity: 1; } }
@keyframes lab-ball-travel {
  0%, 12% { transform: translate(0, 0); }
  24% { transform: translate(114px, -123px); }
  40% { transform: translate(280px, -141px); }
  50% { transform: translate(408px, 0); }
  63% { transform: translate(545px, -65px); }
  80%, 100% { transform: translate(904px, -36px); }
}
@keyframes lab-block-react {
  0%, 43% { transform: translate(0, 0); }
  49% { transform: translate(14px, 3px) rotate(3deg); }
  55% { transform: translate(-8px, -2px) rotate(-2deg); }
  66%, 100% { transform: translate(3px, 0); }
}

@media (max-width: 1050px) {
  :root { --shell: min(100% - 64px, 920px); }
  .hero-content { grid-template-columns: minmax(0, .8fr) minmax(380px, 1.2fr); }
  .behavior-field { right: 0; width: min(78vw, 760px); opacity: .72; }
  .hero-copy h1 { font-size: clamp(3.4rem, 8vw, 6.6rem); }
  .meaning-grid { gap: 5%; }
  .meaning-word { grid-template-columns: 1fr; gap: 18px; }
  .meaning-word p { padding-left: 4px; }
  .physics-row { grid-template-columns: 55px minmax(160px, .7fr) 1fr 28px; }
}

@media (max-width: 760px) {
  :root { --shell: calc(100% - 36px); }
  .section { padding: 92px 0; }
  .section-head { grid-template-columns: 1fr; gap: 18px; margin-bottom: 48px; }
  .section-head .section-index { padding-top: 0; }
  .section-head h2 { font-size: clamp(2.9rem, 12vw, 5.5rem); }
  .site-header { height: 74px; }
  .wordmark { font-size: 9px; letter-spacing: .08em; gap: 8px; }
  .wordmark-mark i { width: 13px; }
  .header-cta span { display: none; }
  .header-cta b { font-size: 22px; }
  .hero-frame { min-height: calc(100svh - 74px); padding-top: 18px; }
  .hero-meta, .hero-bottom { font-size: 8px; }
  .hero-meta span:last-child { text-align: right; }
  .hero-content { display: block; min-height: 770px; }
  .hero-copy { max-width: 100%; padding: 78px 0 30px; }
  .hero-copy h1 { max-width: 100%; margin-top: 23px; font-size: clamp(3.35rem, 13.8vw, 6.8rem); line-height: .86; white-space: normal; }
  .hero-copy h1 span, .hero-copy h1 em { display: block; }
  .hero-copy h1 sup { position: absolute; top: 8px; right: 4px; margin: 0; }
  .hero-slogan { font-size: clamp(1.6rem, 7vw, 2.4rem); }
  .hero-lede { max-width: 400px; font-size: 14px; line-height: 1.7; }
  .hero-actions { gap: 18px; }
  .button { min-height: 50px; font-size: 10px; }
  .behavior-field { top: 395px; right: 0; width: 145%; opacity: .46; }
  .field-heading { font-size: 8px; }
  .field-caption { font-size: 8px; }
  .hero-bottom { align-items: end; }
  .hero-bottom span:first-child { max-width: 190px; line-height: 1.6; }
  .hero-bottom span:last-child { text-align: right; }
  .meaning-grid, .loop-layout, .specimen-grid { grid-template-columns: 1fr; gap: 52px; }
  .meaning-behavior { padding-top: 0; }
  .meaning-word h3 { font-size: clamp(3.4rem, 16vw, 7.2rem); }
  .meaning-word { grid-template-columns: minmax(0, 1fr) 120px; align-items: end; }
  .meaning-close { margin-top: 53px; text-align: left; font-size: clamp(1.7rem, 7vw, 2.8rem); }
  .loop-layout { gap: 32px; }
  .loop-visual { margin-inline: -7px; }
  .loop-visual svg { min-width: 0; }
  .physics-row { grid-template-columns: 42px 1fr 24px; gap: 12px; min-height: 88px; }
  .physics-row p { grid-column: 2 / 3; grid-row: 2; margin-top: -21px; font-size: 13px; }
  .physics-row h3 { grid-column: 2; grid-row: 1; }
  .row-mark { grid-column: 3; grid-row: 1; }
  .application-row { grid-template-columns: 42px 1fr; gap: 12px; min-height: 102px; padding: 15px 0; }
  .app-number { padding-top: 5px; }
  .application-row p { font-size: 13px; line-height: 1.55; }
  .app-line { display: none; }
  .lab-heading { display: block; padding: 52px 0 24px; }
  .lab-heading p { margin-top: 16px; }
  .lab-field { margin-inline: -1px; }
  .lab-state, .lab-caption { padding-inline: 12px; font-size: 8px; }
  .lab-caption { display: block; font-size: 13px; line-height: 1.5; }
  .lab-caption .mono { display: block; margin-top: 10px; }
  .lab-center-word { font-size: 27px; }
  .compare-grid { grid-template-columns: 1fr; }
  .compare-panel svg { margin-top: 22px; }
  .compare-close { margin-top: 48px; text-align: left; font-size: clamp(1.7rem, 7vw, 2.8rem); }
  .specimen-grid { gap: 34px; }
  .specimen-intro { max-width: 280px; }
  .specimen-list strong { font-size: clamp(1.4rem, 7vw, 2.45rem); }
  .specimen-list > div { min-height: 64px; }
  .why-row { grid-template-columns: 54px 1fr 22px; gap: 12px; padding: 24px 0 28px; }
  .why-number { font-size: 3rem; }
  .why-row h3 { font-size: clamp(1.45rem, 6.6vw, 2.3rem); }
  .why-row p { font-size: 13px; line-height: 1.65; }
  .asset-card { margin-top: 34px; }
  .asset-card-head, .asset-card-foot { padding: 14px 13px; font-size: 8px; }
  .asset-card h2 { padding: 35px 13px 38px; font-size: clamp(3.2rem, 15vw, 6.8rem); }
  .asset-card h2 span { display: block; margin-top: 10px; }
  .asset-data { grid-template-columns: 1fr 1fr; }
  .asset-data dl, .asset-data dl:nth-child(3n) { min-height: 112px; padding: 14px 13px; border-right: 1px solid var(--line); }
  .asset-data dl:nth-child(2n) { border-right: 0; }
  .asset-data dd { margin-top: 14px; font-size: 10px; overflow-wrap: anywhere; }
  .final-cta { padding: 112px 0 118px; }
  .final-cta h2 { margin-top: 30px; font-size: clamp(4.8rem, 19vw, 9rem); }
  .final-cta h2 span { margin-left: 6%; }
  .final-lede, .final-cta .button-primary, .secure-note { margin-left: 6%; }
  .final-cta .button-primary { width: calc(100% - 6%); }
  .final-lede { margin-top: 42px; font-size: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 18px 30px; padding: 25px 0; font-size: 12px; }
  .footer-grid a { grid-column: 1 / -1; }
}

@media (max-width: 390px) {
  .hero-copy h1 { font-size: clamp(3.2rem, 13.3vw, 5.1rem); }
  .hero-copy h1 sup { top: 2px; right: 0; font-size: 9px; }
  .hero-lede { font-size: 13px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button-primary { width: 100%; }
  .text-link { align-self: flex-start; }
  .meaning-word { grid-template-columns: minmax(0, 1fr) 96px; }
  .meaning-word h3 { font-size: clamp(3.1rem, 15vw, 5.4rem); }
  .asset-card h2 { font-size: clamp(3rem, 14vw, 5.4rem); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
  .js .reveal, .js .reveal.is-visible { opacity: 1; transform: none; }
}