:root {
  --ink: #e9f0ed;
  --paper: #f0f2ee;
  --dark: #101715;
  --panel: #17211e;
  --panel-light: #22302b;
  --muted: #a8b5b0;
  --green: #7de3b0;
  --green-dark: #286e50;
  --rust: #de8d68;
  --line: rgba(233, 240, 237, .18);
  --dark-line: rgba(16, 23, 21, .18);
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Iowan Old Style, Baskerville, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--dark); color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.65; text-rendering: optimizeLegibility; }
a { color: inherit; text-underline-offset: .2em; }
.skip-link { position: fixed; top: -5rem; left: 1rem; z-index: 20; padding: .7rem 1rem; background: var(--green); color: var(--dark); }
.skip-link:focus { top: 1rem; }
.site-header { width: min(1400px, calc(100% - 3rem)); min-height: 82px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 2rem; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: .8rem; text-decoration: none; font-size: .88rem; font-weight: 750; }
.brand em { color: var(--muted); font-style: normal; font-weight: 500; }
.brand-mark { display: grid; width: 39px; height: 39px; place-items: center; border: 1px solid var(--green); border-radius: 50%; color: var(--green); font-family: var(--serif); }
nav { display: flex; gap: clamp(.6rem, 1.4vw, 1.5rem); }
nav a { color: var(--muted); font-size: .7rem; font-weight: 700; text-decoration: none; }
nav a:hover { color: var(--green); }

.hero { width: min(1400px, calc(100% - 3rem)); min-height: 820px; margin: 0 auto; padding: 5rem 0 6rem; display: grid; grid-template-columns: minmax(0, .92fr) minmax(480px, 1.08fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { margin: 0 0 1rem; color: var(--green); font-size: .68rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1, h2 { margin: 0; font-family: var(--serif); font-weight: 500; line-height: 1.06; letter-spacing: -.035em; }
h1 { font-size: clamp(3.3rem, 4.7vw, 4.95rem); }
h2 { font-size: clamp(2.8rem, 5vw, 5rem); }
h3 { line-height: 1.15; }
.hero-intro { max-width: 760px; margin: 2rem 0 0; color: var(--muted); font-size: clamp(1.05rem, 1.7vw, 1.3rem); }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2.2rem; }
.button { display: inline-flex; align-items: center; gap: .4rem; padding: .78rem 1rem; border: 1px solid var(--green); font-size: .8rem; font-weight: 750; text-decoration: none; transition: transform 160ms ease, background-color 160ms ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--green); color: var(--dark); }
.button.secondary { color: var(--green); }
.availability { margin-top: 2.6rem; padding: 1.3rem 1.4rem; border-left: 3px solid var(--rust); background: rgba(255,255,255,.035); }
.availability strong { color: var(--rust); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; }
.availability p { margin: .55rem 0 0; color: var(--muted); font-size: .82rem; }
.status-line span { display: inline-block; width: 7px; height: 7px; margin-right: .45rem; border-radius: 50%; background: var(--green); box-shadow: 0 0 14px var(--green); }

.hero-visual { position: relative; min-height: 610px; margin: 0; overflow: hidden; border: 1px solid rgba(125,227,176,.2); background: #080d0b; isolation: isolate; }
.hero-visual::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, rgba(8,13,11,.72), transparent 28%), linear-gradient(0deg, rgba(8,13,11,.72), transparent 35%); pointer-events: none; }
.hero-visual::after { content: ""; position: absolute; inset: 0; z-index: 1; border: 1px solid rgba(255,255,255,.04); background: repeating-linear-gradient(0deg, transparent 0 79px, rgba(255,255,255,.025) 80px), repeating-linear-gradient(90deg, transparent 0 79px, rgba(255,255,255,.025) 80px); pointer-events: none; }
.hero-visual img { width: 100%; height: 610px; display: block; object-fit: cover; object-position: 50% center; filter: saturate(.82) contrast(1.07); }
.hero-visual figcaption { position: absolute; z-index: 2; right: 1.4rem; bottom: 1.4rem; left: 1.4rem; display: flex; justify-content: space-between; gap: 1rem; align-items: center; padding: .9rem 1rem; border: 1px solid rgba(233,240,237,.16); background: rgba(8,13,11,.78); backdrop-filter: blur(14px); }
.hero-visual figcaption span { color: var(--green); font-size: .62rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.hero-visual figcaption i, .status i { display: inline-block; width: 7px; height: 7px; margin-right: .45rem; border-radius: 50%; background: var(--green); box-shadow: 0 0 14px var(--green); }
.hero-visual figcaption strong { color: var(--muted); font-size: .68rem; font-weight: 600; }

.section { padding: 7rem max(1.5rem, calc((100% - 1200px) / 2)); }
.section-heading { margin-bottom: 4rem; display: grid; grid-template-columns: 1fr .75fr; gap: 4rem; align-items: end; }
.section-heading > p { margin: 0; color: #55615d; }
.section-heading.compact { grid-template-columns: 1fr; }
.metrics { position: relative; overflow: hidden; background: #0b110f; }
.metrics::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at 12% 25%, rgba(125,227,176,.08), transparent 30%), repeating-linear-gradient(90deg, transparent 0 119px, rgba(255,255,255,.018) 120px); }
.metrics-heading { position: relative; margin-bottom: 3.5rem; display: grid; grid-template-columns: 1fr .66fr; gap: 4rem; align-items: end; }
.metrics-heading > p { margin: 0; color: var(--muted); }
.instrument-panel { position: relative; display: grid; grid-template-columns: 1.08fr .92fr; border: 1px solid var(--line); background: rgba(23,33,30,.76); box-shadow: 0 35px 90px rgba(0,0,0,.24); }
.instrument-panel article { min-width: 0; padding: clamp(1.5rem, 3vw, 2.6rem); }
.throughput-readout { border-right: 1px solid var(--line); }
.readout-topline { display: flex; justify-content: space-between; gap: 1rem; padding-bottom: 1.1rem; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .64rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.status { color: var(--green); }
.snapshot-label { color: #d7aa87; }
.readout-value { display: flex; gap: 1rem; align-items: baseline; margin: 2rem 0 .2rem; }
.readout-value strong { color: var(--ink); font-family: var(--serif); font-size: clamp(5.3rem, 9vw, 8.8rem); font-weight: 400; line-height: .82; letter-spacing: -.06em; }
.readout-value span { color: var(--green); font-size: .7rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.signal-trace { width: 100%; height: auto; margin: 1.5rem 0 2rem; overflow: visible; }
.trace-grid { fill: none; stroke: rgba(233,240,237,.07); stroke-width: 1; }
.trace-glow { fill: none; stroke: rgba(125,227,176,.18); stroke-width: 9; filter: blur(5px); }
.trace-line { fill: none; stroke: var(--green); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.benchmark-detail { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.benchmark-detail div { padding: .85rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.benchmark-detail dt { color: #788680; font-size: .54rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.benchmark-detail dd { margin: .28rem 0 0; color: var(--ink); font-family: var(--serif); font-size: .9rem; }
.verification-readout table { width: 100%; margin-top: 1.2rem; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.verification-readout th { padding: .8rem .5rem; color: #788680; font-size: .54rem; letter-spacing: .12em; text-align: left; text-transform: uppercase; }
.verification-readout th:nth-child(2), .verification-readout td:nth-child(2) { text-align: right; }
.verification-readout td { padding: 1.25rem .5rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .76rem; }
.verification-readout td:nth-child(2) { color: var(--ink); font-family: var(--serif); font-size: 1.75rem; line-height: 1; }
.verification-readout td:last-child { width: 34%; padding-left: 1.2rem; }
.bar { display: block; width: 100%; height: 3px; background: rgba(233,240,237,.08); }
.bar::after { content: ""; display: block; width: var(--fill); height: 100%; background: linear-gradient(90deg, var(--green-dark), var(--green)); box-shadow: 0 0 12px rgba(125,227,176,.28); }
.mode-dots { display: flex; justify-content: space-between; gap: 4px; }
.mode-dots i { width: 8px; height: 8px; border: 1px solid var(--green); border-radius: 50%; background: rgba(125,227,176,.28); }
.mode-key { display: grid; grid-template-columns: repeat(4, 1fr); gap: .4rem; margin-top: 1.2rem; }
.mode-key span { padding-top: .55rem; border-top: 2px solid var(--green-dark); color: #788680; font-size: .52rem; letter-spacing: .08em; text-align: center; text-transform: uppercase; }
.metric-caveat { margin: 1rem 0 0; color: #788680; font-size: .62rem; line-height: 1.5; }
.architecture-map { background: #13201c; }
.architecture-map .section-heading > p { color: var(--muted); }
.runtime-rail { display: grid; grid-template-columns: repeat(6, 1fr); margin: 0; padding: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); list-style: none; counter-reset: none; }
.runtime-rail li { position: relative; min-height: 190px; padding: 1.4rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.018); }
.runtime-rail li:not(:last-child)::after { content: "→"; position: absolute; z-index: 2; top: 50%; right: -.55rem; display: grid; width: 1.1rem; height: 1.1rem; place-items: center; border-radius: 50%; background: #13201c; color: var(--green); font-size: .75rem; transform: translateY(-50%); }
.runtime-rail span { color: var(--green); font-size: .58rem; font-weight: 800; letter-spacing: .12em; }
.runtime-rail strong { display: block; margin-top: 3.7rem; font-family: var(--serif); font-size: 1.28rem; font-weight: 500; line-height: 1.12; }
.runtime-rail small { display: block; margin-top: .5rem; color: var(--muted); font-size: .6rem; }
.principles { background: var(--paper); color: var(--dark); }
.principles .eyebrow, .modes .eyebrow, .evidence .eyebrow { color: var(--green-dark); }
.principle-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--dark-line); border-left: 1px solid var(--dark-line); }
.principle-grid article { min-height: 300px; padding: 2.4rem; border-right: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); }
.principle-grid article > span { color: var(--green-dark); font-family: var(--serif); font-size: 1.4rem; }
.principle-grid h3 { margin: 4rem 0 .8rem; font-family: var(--serif); font-size: 2rem; font-weight: 500; }
.principle-grid p { max-width: 480px; margin: 0; color: #55615d; }

.modes { background: #dfe5df; color: var(--dark); }
.mode-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--dark-line); border-left: 1px solid var(--dark-line); }
.mode-grid article { min-height: 280px; padding: 2rem; border-right: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); }
.mode-grid h3 { margin: 0 0 3.5rem; color: var(--green-dark); font-family: var(--serif); font-size: 1.8rem; font-weight: 500; }
.mode-grid p { color: #53605b; font-size: .88rem; }
.mode-note { max-width: 850px; margin: 2rem 0 0; color: #53605b; font-size: .85rem; }
.replay { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(3rem, 7vw, 7rem); align-items: center; background: #0b110f; }
.replay-copy > p:not(.eyebrow) { margin: 1.8rem 0 0; color: var(--muted); }
.text-link { display: inline-block; margin-top: 1.5rem; color: var(--green); font-size: .75rem; font-weight: 750; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.replay-proof { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.replay-proof div { min-height: 180px; padding: 1.5rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: linear-gradient(145deg, rgba(125,227,176,.045), transparent); }
.replay-proof span { display: block; color: var(--green); font-size: .58rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.replay-proof strong { display: block; margin-top: 4rem; font-family: var(--serif); font-size: 1.25rem; font-weight: 500; }
.venues { background: var(--paper); color: var(--dark); }
.venues .eyebrow, .research .eyebrow { color: var(--green-dark); }
.venue-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--dark-line); border-left: 1px solid var(--dark-line); }
.venue-grid article { min-height: 310px; padding: 2rem; border-right: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); }
.venue-grid span { color: var(--green-dark); font-size: .58rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.venue-grid h3 { margin: 5rem 0 1rem; font-family: var(--serif); font-size: 1.8rem; font-weight: 500; }
.venue-grid p, .venue-note { color: #53605b; }
.venue-grid p { margin: 0; font-size: .86rem; }
.venue-note { max-width: 850px; margin: 2rem 0 0; font-size: .82rem; }
.research { background: #dfe5df; color: var(--dark); }
.research-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--dark-line); border-left: 1px solid var(--dark-line); }
.research-grid article { min-height: 220px; padding: 2rem; border-right: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); }
.research-grid strong { color: var(--green-dark); font-family: var(--serif); font-size: 1.5rem; font-weight: 500; }
.research-grid p { max-width: 500px; margin: 3rem 0 0; color: #53605b; font-size: .86rem; }

.evidence { background: var(--paper); color: var(--dark); }
.evidence-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.evidence-grid article { padding: 2rem; border: 1px solid var(--dark-line); background: #f8faf7; }
.evidence-grid strong { display: block; color: var(--green-dark); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.evidence-grid p { margin: 1rem 0 0; color: #53605b; }
.document-links { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 3rem; border-top: 1px solid var(--dark-line); border-left: 1px solid var(--dark-line); }
.document-links a { padding: 1.4rem; border-right: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); text-decoration: none; }
.document-links a:hover { background: white; }
.document-links span { display: block; font-family: var(--serif); font-size: 1.2rem; }
.document-links small { display: block; margin-top: .35rem; color: #65706c; }

.transfer { background: var(--panel); text-align: center; }
.transfer h2 { max-width: 850px; margin: 0 auto; }
.transfer > p:not(.eyebrow) { max-width: 820px; margin: 1.6rem auto 0; color: var(--muted); }
.access { background: var(--green-dark); text-align: center; }
.access .eyebrow { color: #baf2d5; }
.access h2 { max-width: 850px; margin: 0 auto; }
.access > p:not(.eyebrow) { max-width: 840px; margin: 1.5rem auto 0; color: #d1e9dd; }
.access .access-note { max-width: 760px; color: #b8d9ca; font-size: .77rem; }
.access .actions { justify-content: center; }
.button.light { border-color: white; background: white; color: var(--dark); }
.button.outline-light { border-color: white; color: white; }
footer { width: min(1200px, calc(100% - 3rem)); margin: 0 auto; padding: 2rem 0; display: flex; justify-content: space-between; gap: 2rem; color: var(--muted); font-size: .7rem; }

:focus-visible { outline: 3px solid var(--rust); outline-offset: 4px; }
@media (max-width: 1100px) {
  .site-header { padding: .8rem 0; flex-wrap: wrap; }
  nav { width: 100%; display: grid; grid-template-columns: repeat(8, 1fr); order: 2; }
  nav a { text-align: center; }
}
@media (max-width: 940px) {
  .hero { grid-template-columns: 1fr; }
  .hero-visual { min-height: 480px; }
  .hero-visual img { height: 480px; }
  .section-heading { grid-template-columns: 1fr; gap: 1.5rem; }
  .metrics-heading, .instrument-panel { grid-template-columns: 1fr; }
  .metrics-heading { gap: 1.5rem; }
  .throughput-readout { border-right: 0; border-bottom: 1px solid var(--line); }
  .runtime-rail { grid-template-columns: repeat(3, 1fr); }
  .runtime-rail li:nth-child(3)::after { display: none; }
  .replay { grid-template-columns: 1fr; }
  .mode-grid, .venue-grid, .document-links { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .site-header { width: calc(100% - 2rem); }
  .brand em { display: none; }
  nav { grid-template-columns: repeat(4, 1fr); gap: .45rem .2rem; }
  nav a { font-size: .58rem; }
  .hero { width: calc(100% - 2rem); min-height: auto; padding: 5rem 0; }
  h1 { font-size: clamp(3.3rem, 15vw, 5rem); }
  .hero-visual { min-height: 310px; }
  .hero-visual img { height: 310px; }
  .hero-visual figcaption { right: .7rem; bottom: .7rem; left: .7rem; }
  .hero-visual figcaption strong { display: none; }
  .section { padding: 5rem 1rem; }
  .instrument-panel article { padding: 1.25rem; }
  .benchmark-detail { grid-template-columns: repeat(2, 1fr); }
  .readout-value strong { font-size: clamp(4.8rem, 24vw, 7rem); }
  .readout-topline { align-items: flex-start; }
  .status, .snapshot-label { text-align: right; }
  .runtime-rail, .principle-grid, .mode-grid, .venue-grid, .research-grid, .evidence-grid, .document-links { grid-template-columns: 1fr; }
  .runtime-rail li { min-height: 145px; }
  .runtime-rail li:not(:last-child)::after { top: auto; right: 50%; bottom: -.55rem; transform: translateX(50%) rotate(90deg); }
  .runtime-rail li:nth-child(3)::after { display: grid; }
  .runtime-rail strong { margin-top: 2rem; }
  .replay-proof { grid-template-columns: 1fr; }
  .replay-proof div, .research-grid article { min-height: 170px; }
  .venue-grid article { min-height: 250px; }
  .venue-grid h3 { margin-top: 3rem; }
  .principle-grid article, .mode-grid article { min-height: 240px; }
  footer { width: calc(100% - 2rem); flex-direction: column; gap: .2rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}
@media print {
  .site-header, .hero-visual, .actions, footer { display: none; }
  body, .hero, .metrics, .architecture-map, .principles, .modes, .replay, .venues, .research, .evidence, .access { background: white; color: black; }
  .hero, .section { min-height: auto; padding: 2rem 0; }
}