:root {
  color-scheme: light;
  --ink: #0b1210; --ink-2: #17201d; --forest: #1f604d; --green: #4f9a7e;
  --mist: #eef4f0; --paper: #f8faf7; --white: #fff; --muted: #64716c;
  --line: rgba(11,18,16,.12); --line-soft: rgba(11,18,16,.075);
  --coral: #ee6959; --violet: #766fd3; --blue: #4e8fbf; --amber: #ad761e; --danger: #aa4138;
  --display: "Arial Rounded MT Bold", "Avenir Next", Avenir, "Segoe UI", sans-serif;
  --body: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --radius: 18px; --max: 1440px; --shadow: 0 24px 70px rgba(25,52,43,.12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); color: var(--ink); font-family: var(--body); font-size: 16px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
button, input, textarea, select { font: inherit; }
button, a { touch-action: manipulation; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
code { font-family: var(--mono); }
h1, h2, h3, h4, p { margin-top: 0; }
.skip-link { position: fixed; z-index: 1000; top: 12px; left: 12px; padding: 10px 14px; border-radius: 8px; background: var(--ink); color: white; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid #347f67; outline-offset: 3px; }

.boundary { min-height: 34px; padding: 7px max(24px,calc((100vw - var(--max))/2)); display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid rgba(255,255,255,.11); background: var(--ink); color: #c7d0cc; font: 650 9px/1.4 var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.boundary span { display: flex; align-items: center; gap: 8px; }
.boundary i { width: 6px; height: 6px; border-radius: 50%; background: #7fe0b8; box-shadow: 0 0 10px #7fe0b8; }
.boundary strong { color: #8db7a6; font-weight: 600; }
.site-header { position: sticky; z-index: 50; top: 0; height: 72px; padding: 0 max(24px,calc((100vw - var(--max))/2)); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 26px; border-bottom: 1px solid var(--line-soft); background: rgba(248,250,247,.91); backdrop-filter: blur(18px) saturate(1.15); }
.brand { display: inline-flex; align-items: center; gap: 10px; width: fit-content; font-weight: 750; letter-spacing: -.04em; }
.brand-mark { position: relative; width: 24px; height: 24px; display: inline-block; flex: 0 0 24px; border-radius: 7px; background: url('/brand/logos/singularcell-icon-192-clean-v1.5.png') center/contain no-repeat; }
.brand-mark i { display: none; }
.site-header nav { display: flex; align-items: center; gap: 30px; color: #4e5a56; font-size: 13px; font-weight: 560; }
.site-header nav a:hover { color: var(--forest); }
.nav-action { justify-self: end; padding: 10px 16px; border: 1px solid var(--line); border-radius: 999px; background: white; font-size: 12px; font-weight: 700; box-shadow: 0 5px 15px rgba(20,50,40,.05); }
.nav-action span { margin-left: 8px; color: var(--forest); }

.hero { position: relative; isolation: isolate; max-width: var(--max); min-height: 820px; margin: 0 auto; padding: 94px 24px 76px; display: grid; grid-template-columns: minmax(0,.93fr) minmax(510px,1.07fr); align-items: center; gap: 78px; overflow: clip; }
.hero::before { content: ""; position: absolute; z-index: -2; inset: 0; background: radial-gradient(circle at 71% 43%,rgba(102,176,145,.14),transparent 32%),radial-gradient(circle at 8% 3%,rgba(238,105,89,.07),transparent 25%); }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { margin: 0 0 19px; color: #6f7c77; font: 650 9px/1.4 var(--mono); letter-spacing: .13em; text-transform: uppercase; }
.eyebrow span { margin-right: 11px; color: var(--forest); }
h1 { max-width: 740px; margin-bottom: 27px; font: 700 clamp(54px,6.15vw,96px)/.94 var(--display); letter-spacing: -.068em; }
h1 em { display: block; color: var(--forest); font-style: normal; }
.hero-lede { max-width: 650px; margin-bottom: 30px; color: #4e5b56; font-size: clamp(17px,1.4vw,20px); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-bottom: 32px; }
.button { min-height: 49px; padding: 12px 19px; display: inline-flex; align-items: center; justify-content: center; gap: 20px; border: 1px solid transparent; border-radius: 999px; cursor: pointer; font-size: 12px; font-weight: 750; transition: transform 170ms ease,box-shadow 170ms ease,background 170ms ease; }
.button:hover { transform: translateY(-2px); }
.button:disabled, .stage-button:disabled { cursor: wait; opacity: .5; transform: none; }
.button-primary { background: var(--ink); color: white; box-shadow: 0 12px 28px rgba(11,18,16,.16); }
.button-primary:hover { background: var(--forest); box-shadow: 0 15px 32px rgba(31,96,77,.22); }
.button-quiet { border-color: var(--line); background: rgba(255,255,255,.66); color: var(--ink); }
.button-secondary { border-color: rgba(118,111,211,.26); background: #f4f2ff; color: #504a9e; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 9px 24px; margin-bottom: 20px; }
.hero-proof span { display: flex; align-items: baseline; gap: 7px; color: #6f7b77; font-size: 11px; }
.hero-proof b { color: var(--coral); font: 700 18px var(--display); letter-spacing: -.04em; }
.hero-proof span:nth-child(2) b { color: var(--violet); }
.hero-proof span:nth-child(3) b { color: var(--blue); }
.hero-footnote { max-width: 590px; margin: 0; color: #7a8581; font: 550 9px/1.55 var(--mono); letter-spacing: .07em; text-transform: uppercase; }
.cell-field { position: absolute; z-index: -1; top: 30px; right: -35px; width: 760px; height: 700px; pointer-events: none; overflow: hidden; mask-image: radial-gradient(ellipse 72% 70% at center,#000 46%,transparent 82%); }
#cell-canvas { width: 100%; height: 100%; display: block; opacity: .92; }
.cell-field > span { display: none; }

.contract-preview { position: relative; z-index: 2; min-height: 560px; border: 1px solid rgba(28,72,57,.16); border-radius: 32px; background: rgba(255,255,255,.87); box-shadow: var(--shadow); overflow: hidden; backdrop-filter: blur(12px); }
.contract-preview::before { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: linear-gradient(rgba(31,96,77,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(31,96,77,.045) 1px,transparent 1px); background-size: 44px 44px; mask-image: linear-gradient(to bottom,#000,transparent 93%); }
.contract-preview > * { position: relative; }
.contract-preview header, .contract-preview footer { min-height: 62px; padding: 0 23px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line-soft); color: #62706b; font: 650 9px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.contract-preview header div { display: flex; align-items: center; gap: 9px; }
.signal-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(79,154,126,.12); }
.preview-question { padding: 35px 28px 34px; border-bottom: 1px solid var(--line-soft); }
.preview-question span { display: block; margin-bottom: 11px; color: #73807b; font: 650 9px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.preview-question strong { max-width: 570px; display: block; font: 720 28px/1.25 var(--display); letter-spacing: -.035em; }
.preview-question small { display: block; margin-top: 12px; color: #7b8782; font-size: 11px; }
.preview-flow { position: relative; padding: 23px; display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); }
.preview-flow::before { content: ""; position: absolute; left: 10%; right: 10%; bottom: 70px; height: 2px; background: linear-gradient(90deg,var(--coral),var(--violet),var(--blue),var(--green),#d5ab57); opacity: .6; }
.preview-node { position: relative; min-height: 205px; padding: 15px 12px; border: 1px solid var(--line-soft); border-right: 0; background: rgba(248,250,247,.72); }
.preview-node:first-child { border-radius: 14px 0 0 14px; }
.preview-node:last-child { border-right: 1px solid var(--line-soft); border-radius: 0 14px 14px 0; }
.preview-node small { display: block; margin-bottom: 58px; color: #88928e; font: 650 9px var(--mono); }
.preview-node span { display: block; font-size: 12px; font-weight: 750; }
.preview-node b { position: absolute; z-index: 2; left: 12px; bottom: 20px; padding: 4px 6px; border-radius: 5px; background: var(--paper); color: #65716d; font: 650 7px var(--mono); letter-spacing: .07em; text-transform: uppercase; }
.preview-node.active b { color: var(--forest); }
.preview-node.review b { color: var(--amber); }
.contract-preview footer { border-top: 1px solid var(--line-soft); border-bottom: 0; color: #74807b; }
.contract-preview footer i { display: inline-block; width: 6px; height: 6px; margin-right: 6px; border-radius: 50%; background: var(--blue); }

.product-thesis { padding: 116px max(24px,calc((100vw - var(--max))/2)); display: grid; grid-template-columns: 1.15fr .85fr; gap: 72px; background: var(--ink); color: white; }
.product-thesis .eyebrow { color: #899791; }
.product-thesis .eyebrow span { color: #8bd2b5; }
h2 { margin-bottom: 25px; font: 700 clamp(42px,5vw,72px)/1 var(--display); letter-spacing: -.055em; }
.product-thesis > p { max-width: 610px; align-self: end; color: #aeb9b5; font-size: 18px; line-height: 1.7; }
.architecture-flow { grid-column: 1/-1; margin: 34px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5,1fr); list-style: none; border-top: 1px solid rgba(255,255,255,.16); }
.architecture-flow li { min-height: 172px; padding: 22px 21px; display: flex; flex-direction: column; justify-content: space-between; border-right: 1px solid rgba(255,255,255,.11); }
.architecture-flow li:first-child { border-left: 1px solid rgba(255,255,255,.11); }
.architecture-flow span { color: #7f9088; font: 650 9px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.architecture-flow strong { max-width: 190px; color: #e5eae8; font-size: 15px; line-height: 1.4; }

.compiler-section { padding: 112px max(24px,calc((100vw - var(--max))/2)); background: var(--mist); }
.compiler-intro { margin-bottom: 38px; display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.compiler-intro h2 { margin-bottom: 0; }
.runtime-status { padding: 9px 12px; display: flex; align-items: center; gap: 9px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.7); color: #6f7b77; font: 650 9px var(--mono); letter-spacing: .07em; text-transform: uppercase; }
.runtime-status span { width: 7px; height: 7px; border-radius: 50%; background: #d3a34d; }
.runtime-status.is-ready span { background: var(--green); box-shadow: 0 0 0 4px rgba(79,154,126,.12); }
.runtime-status.is-error span { background: var(--danger); }
.compiler-errors { margin: -18px 0 22px; display: grid; gap: 7px; }
.compiler-error { padding: 12px 14px; border-left: 3px solid var(--danger); border-radius: 0 8px 8px 0; background: #fff0ee; color: #86362f; font-size: 11px; }
.compiler-shell { min-height: 820px; display: grid; grid-template-columns: 238px minmax(0,1fr); border: 1px solid var(--line); border-radius: 28px; background: white; overflow: hidden; box-shadow: 0 24px 60px rgba(24,55,45,.1); }
.stage-rail { padding: 25px 14px; border-right: 1px solid var(--line-soft); background: #f4f7f4; }
.rail-label { margin: 0 11px 20px; color: #89938f; font: 650 8px var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.stage-button { position: relative; width: 100%; min-height: 82px; padding: 14px 10px 14px 47px; display: grid; gap: 2px; border: 0; border-radius: 13px; background: transparent; color: #77837e; text-align: left; cursor: pointer; }
.stage-button::before { content: ""; position: absolute; left: 24px; inset-block: 0; width: 1px; background: #d7dfdb; }
.stage-button span { position: absolute; z-index: 1; left: 14px; top: 18px; width: 21px; height: 21px; display: grid; place-items: center; border: 1px solid #c8d2cd; border-radius: 50%; background: #f4f7f4; font: 650 7px var(--mono); }
.stage-button strong { color: #4e5a56; font-size: 12px; }
.stage-button small { font: 550 8px var(--mono); }
.stage-button:hover { background: rgba(255,255,255,.75); }
.stage-button.is-active { background: white; color: var(--forest); box-shadow: 0 6px 17px rgba(23,61,49,.07); }
.stage-button.is-active span { border-color: var(--green); color: var(--forest); box-shadow: 0 0 0 4px rgba(79,154,126,.1); }
.stage-button.is-active strong { color: var(--ink); }
.workbench { min-width: 0; }
.stage-panel { display: none; min-height: 820px; padding: 38px; }
.stage-panel.is-active { display: flex; flex-direction: column; }
.panel-heading { padding-bottom: 28px; display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--line-soft); }
.panel-heading p { margin-bottom: 8px; color: var(--forest); font: 650 8px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.panel-heading h3 { max-width: 760px; margin: 0; font: 700 clamp(29px,3vw,45px)/1.08 var(--display); letter-spacing: -.045em; }
.status-chip { flex: none; padding: 7px 9px; border: 1px solid; border-radius: 999px; font: 650 7px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.status-chip.synthetic { color: #5851a8; border-color: #d9d5f3; background: #f5f3ff; }
.status-chip.literature { color: #2c688e; border-color: #c9e0ee; background: #f0f8fc; }
.status-chip.review { color: #8c6019; border-color: #ead6b4; background: #fff8eb; }
.status-chip.reviewed { color: var(--forest); border-color: #b9dccd; background: #eef9f4; }

.form-grid { margin-top: 30px; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; color: #48544f; font-size: 11px; font-weight: 700; }
.field-wide { grid-column: 1/-1; }
.field small { color: #7d8884; font: 500 9px/1.45 var(--mono); }
input, textarea, select { width: 100%; min-height: 48px; padding: 12px 13px; border: 1px solid #d2dad6; border-radius: 10px; background: #fbfcfa; color: var(--ink); }
textarea { resize: vertical; line-height: 1.55; }
input:hover, textarea:hover, select:hover { border-color: #aebbb5; }
input:focus, textarea:focus, select:focus { border-color: var(--green); outline: 3px solid rgba(79,154,126,.12); }
.evidence-details { margin-top: 24px; border: 1px solid var(--line-soft); border-radius: 13px; background: #fbfcfa; }
.evidence-details summary { padding: 15px 18px; cursor: pointer; color: #53605b; font-size: 11px; font-weight: 700; }
.metadata-grid { padding: 0 17px 17px; display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; }
.metadata-grid div { padding: 12px; background: white; }
.metadata-grid span { display: block; margin-bottom: 5px; color: #8b9591; font: 650 7px var(--mono); text-transform: uppercase; }
.metadata-grid strong { color: #4c5954; font-size: 10px; font-weight: 600; overflow-wrap: anywhere; }
.panel-actions { margin-top: auto; padding-top: 30px; display: flex; justify-content: flex-end; gap: 10px; }

.contract-columns { margin-top: 30px; display: grid; grid-template-columns: .75fr 1.25fr; gap: 36px; }
.contract-columns h4 { margin: 0 0 14px; color: #75817c; font: 650 9px var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.check-stack, .criteria-list { display: grid; gap: 10px; }
.check-control { min-height: 60px; padding: 12px; display: grid; grid-template-columns: 24px 1fr; align-items: center; gap: 10px; border: 1px solid var(--line-soft); border-radius: 10px; background: #fbfcfa; }
.check-control input { width: 18px; min-height: 18px; accent-color: var(--forest); }
.check-control strong { display: block; font-size: 11px; }
.check-control small { color: #7d8883; font: 500 8px var(--mono); }
.replicate-grid { margin-bottom: 28px; display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.replicate-grid label { color: #75817c; font-size: 10px; }
.replicate-grid input { margin-top: 7px; }
.criteria-list { display: grid; gap: 10px; }
.criterion-card { padding: 14px; display: grid; grid-template-columns: 1fr auto; gap: 12px; border: 1px solid var(--line-soft); border-radius: 10px; background: white; }
.criterion-card strong { font-size: 11px; }
.criterion-card p { grid-column: 1/-1; margin: 0; color: #73807b; font-size: 10px; }
.criterion-card code { color: var(--coral); font-size: 8px; }
.literature-list { padding: 0 16px 16px; display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; }
.literature-item { padding: 13px; border: 1px solid var(--line-soft); border-radius: 9px; background: white; }
.literature-item header { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.literature-item a { font-size: 10px; font-weight: 700; text-decoration: underline; text-decoration-color: #a9cfe3; text-underline-offset: 3px; }
.literature-item a:hover { color: var(--blue); }
.literature-item code { color: var(--blue); font-size: 7px; }
.literature-item p { margin-bottom: 6px; color: #6f7b76; font-size: 9px; }
.literature-item small { display: block; color: #87918d; font-size: 8px; }
.provider-grid { margin-top: 30px; display: grid; grid-template-columns: 1fr; gap: 16px; }
.provider-card { padding: 22px; border: 1px solid var(--line-soft); border-radius: 15px; background: #fbfcfa; }
.provider-card header { display: flex; justify-content: space-between; gap: 14px; padding-bottom: 16px; border-bottom: 1px solid var(--line-soft); }
.provider-card header span { color: #7c8782; font: 650 7px var(--mono); text-transform: uppercase; }
.provider-card h4 { margin: 4px 0 0; font-size: 16px; }
.provider-card ul { margin: 16px 0 0; padding: 0; display: grid; gap: 9px; list-style: none; }
.provider-card li { position: relative; padding-left: 17px; color: #68746f; font-size: 10px; }
.provider-card li::before { content: ""; position: absolute; left: 0; top: 7px; width: 6px; height: 6px; border-radius: 50%; background: var(--coral); }
.provider-card.is-match li::before { background: var(--green); }
.equivalence-warning { margin-top: 18px; padding: 16px 18px; display: grid; grid-template-columns: 180px 1fr; gap: 18px; border-left: 3px solid #d4a44f; background: #fff9ed; }
.equivalence-warning strong { color: #845a17; font-size: 11px; }
.equivalence-warning p { margin: 0; color: #6e766f; font-size: 11px; }

.result-toolbar { margin: 24px 0 14px; display: flex; justify-content: space-between; align-items: end; }
.result-toolbar label { color: #75817c; font-size: 10px; }
.result-toolbar select { width: 120px; margin-top: 6px; }
.result-toolbar span { color: #5d55b5; font: 650 9px var(--mono); }
.result-input textarea { font: 500 10px/1.5 var(--mono); white-space: pre; overflow: auto; }
.statistics-grid { margin-top: 18px; display: grid; grid-template-columns: repeat(4,1fr); gap: 10px; }
.statistic { padding: 14px; border: 1px solid var(--line-soft); border-radius: 10px; background: #fbfcfa; }
.statistic span { display: block; margin-bottom: 8px; color: #818c87; font: 650 7px var(--mono); text-transform: uppercase; }
.statistic strong { font: 750 21px var(--display); }
.statistic small { display: block; color: #7b8782; font-size: 8px; }
.evidence-dashboard { margin-top: 30px; display: grid; grid-template-columns: minmax(0,1.25fr) minmax(260px,.75fr); gap: 18px; }
.evidence-main { display: grid; gap: 10px; }
.hash-card { padding: 14px 16px; border: 1px solid var(--line-soft); border-radius: 10px; background: #fbfcfa; }
.hash-card span { display: block; color: #818c87; font: 650 7px var(--mono); text-transform: uppercase; }
.hash-card code { display: block; margin-top: 7px; color: #66726d; font-size: 8px; overflow-wrap: anywhere; }
.decision-list { margin-top: 4px; display: grid; gap: 9px; }
.decision-item { padding: 14px; display: flex; justify-content: space-between; gap: 20px; border: 1px solid var(--line-soft); border-radius: 10px; }
.decision-item strong { font-size: 10px; }
.decision-item span { color: var(--amber); font: 650 8px var(--mono); }
.decision-item.is-met span { color: var(--forest); }
.sensitivity-ledger { margin-top: 4px; padding: 18px; border: 1px solid var(--line-soft); border-radius: 12px; background: #fbfcfa; }
.sensitivity-ledger > header { display: flex; align-items: start; justify-content: space-between; gap: 18px; }
.sensitivity-ledger > header span { display: block; color: #818c87; font: 650 7px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.sensitivity-ledger h4 { margin: 5px 0 0; font: 700 14px var(--display); }
.sensitivity-ledger > header code { color: var(--coral); font: 650 7px var(--mono); }
.sensitivity-ledger > p { margin: 10px 0 0; color: #73807b; font-size: 9px; line-height: 1.6; }
.sensitivity-list { margin-top: 14px; display: grid; gap: 12px; }
.sensitivity-row { padding-top: 12px; border-top: 1px solid var(--line-soft); }
.sensitivity-heading { display: flex; justify-content: space-between; gap: 14px; }
.sensitivity-heading strong { font-size: 9px; }
.sensitivity-heading span { color: var(--amber); font: 650 7px var(--mono); text-transform: uppercase; }
.sensitivity-scenarios { margin-top: 9px; display: flex; flex-wrap: wrap; gap: 6px; }
.sensitivity-chip { min-width: 66px; padding: 7px 8px; border: 1px solid var(--line-soft); border-radius: 8px; background: white; }
.sensitivity-chip b, .sensitivity-chip small { display: block; }
.sensitivity-chip b { font: 700 10px var(--mono); }
.sensitivity-chip small { margin-top: 3px; color: #7b8782; font-size: 6px; text-transform: uppercase; }
.sensitivity-chip.is-met { border-color: #b9dccd; background: #eef9f4; }
.sensitivity-chip.is-not-met { border-color: #ead6b4; background: #fff8eb; }
.sensitivity-chip.is-missing { border-style: dashed; }
.sensitivity-row > small { display: block; margin-top: 9px; color: #8a938f; font-size: 7px; line-height: 1.5; }
.review-gate { padding: 20px; border: 1px solid #ead6b4; border-radius: 15px; background: #fffaf0; }
.review-gate > p { color: #8b611f; font: 650 9px var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.review-gate label { display: block; margin-top: 13px; color: #5e6864; font-size: 10px; }
.review-gate input { margin-top: 6px; }
.review-gate .button { width: 100%; margin-top: 15px; }
.review-gate small { display: block; margin-top: 13px; color: #7e8883; font-size: 8px; }

.boundaries-section { padding: 112px max(24px,calc((100vw - var(--max))/2)); background: var(--white); }
.boundaries-section > div:first-child { max-width: 940px; }
.boundary-grid { margin-top: 55px; display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.boundary-grid article { min-height: 220px; padding: 24px; display: flex; flex-direction: column; justify-content: space-between; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.boundary-grid span { color: #73807b; font: 650 9px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.boundary-grid strong { max-width: 330px; font: 700 21px/1.35 var(--display); letter-spacing: -.025em; }
footer { padding: 64px max(24px,calc((100vw - var(--max))/2)); display: grid; grid-template-columns: 1fr 1fr auto; gap: 40px; align-items: end; background: var(--ink); color: #8f9d97; font-size: 10px; }
.footer-brand { color: white; }
footer p { max-width: 540px; margin: 10px 0 0; }
footer span { font: 500 8px var(--mono); text-transform: uppercase; }

@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; padding-top: 78px; }
  .hero-copy { max-width: 880px; }
  .cell-field { top: 0; right: -180px; opacity: .42; }
  .contract-preview { min-height: auto; }
  .product-thesis { grid-template-columns: 1fr; }
  .product-thesis > p { align-self: auto; }
  .compiler-shell { grid-template-columns: 190px minmax(0,1fr); }
  .stage-panel { padding: 28px; }
  .contract-columns, .evidence-dashboard { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .boundary { display: block; padding: 8px 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: center; }
  .boundary span { display: none; }
  .site-header { height: 64px; grid-template-columns: 1fr auto; padding: 0 16px; }
  .site-header nav { display: none; }
  .nav-action { padding: 9px 12px; font-size: 10px; }
  .hero { min-height: auto; padding: 70px 16px 64px; gap: 45px; overflow: hidden; }
  .cell-field { top: 30px; right: -260px; width: 680px; height: 600px; opacity: .3; }
  h1 { font-size: clamp(49px,14.2vw,68px); }
  .hero-lede { font-size: 16px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-proof { gap: 9px 16px; }
  .contract-preview { border-radius: 20px; }
  .contract-preview header, .contract-preview footer { min-height: 70px; align-items: flex-start; flex-direction: column; justify-content: center; }
  .preview-flow { overflow-x: auto; grid-template-columns: repeat(5,116px); padding: 15px; }
  .preview-flow::before { display: none; }
  .preview-node { min-height: 155px; }
  .preview-node small { margin-bottom: 33px; }
  .product-thesis, .compiler-section, .boundaries-section { padding: 72px 16px; }
  h2 { font-size: 42px; }
  .architecture-flow { overflow-x: auto; grid-template-columns: repeat(5,180px); }
  .compiler-intro { align-items: flex-start; flex-direction: column; }
  .compiler-shell { display: block; border-radius: 19px; }
  .stage-rail { position: relative; z-index: 20; padding: 8px; display: grid; grid-template-columns: repeat(5,minmax(62px,1fr)); border-right: 0; border-bottom: 1px solid var(--line-soft); overflow-x: auto; }
  .rail-label { display: none; }
  .stage-button { min-height: 58px; padding: 8px; place-items: center; text-align: center; }
  .stage-button::before, .stage-button span, .stage-button small { display: none; }
  .stage-button strong { font-size: 8px; }
  .stage-panel { min-height: 760px; padding: 22px 16px; }
  .panel-heading { flex-direction: column; }
  .panel-heading h3 { font-size: 34px; }
  .form-grid, .contract-columns, .provider-grid, .evidence-dashboard { grid-template-columns: 1fr; }
  .metadata-grid, .literature-list { grid-template-columns: 1fr; }
  .replicate-grid, .statistics-grid { grid-template-columns: repeat(2,1fr); }
  .equivalence-warning { grid-template-columns: 1fr; }
  .panel-actions { position: sticky; bottom: 0; padding: 12px 0 calc(12px + env(safe-area-inset-bottom)); background: linear-gradient(transparent,white 22%); }
  .panel-actions .button { min-height: 50px; }
  .boundary-grid { grid-template-columns: 1fr; }
  .boundary-grid article { min-height: 155px; }
  footer { grid-template-columns: 1fr; padding: 50px 16px; }
}
@media (max-width: 430px) {
  .brand { font-size: 14px; }
  .brand-mark { transform: scale(.85); }
  .preview-question strong { font-size: 22px; }
  .replicate-grid, .statistics-grid { grid-template-columns: 1fr; }
  .button { width: 100%; }
  .panel-actions { flex-direction: column-reverse; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}