@font-face {
  font-family: "Poppins";
  src: url("./assets/fonts/Poppins-Regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Poppins";
  src: url("./assets/fonts/Poppins-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --ink: #111218;
  --ink-soft: #171920;
  --panel: #20232b;
  --panel-light: #292d37;
  --line: #393d49;
  --line-soft: #292c35;
  --paper: #f2f3f7;
  --muted: #a7aab5;
  --accent: #a5a0ff;
  --accent-light: #cfccff;
  --accent-deep: #6f67de;
  --success: #8dd9ba;
  --warning: #edc681;
  --max: 1440px;
  --pad: clamp(1.25rem, 3vw, 3.25rem);
  font-family: "Poppins", "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--ink); }
body { margin: 0; color: var(--paper); background: var(--ink); line-height: 1.6; }
section[id] { scroll-margin-top: 5rem; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
::selection { color: var(--ink); background: var(--accent); }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: 1rem; left: 1rem; padding: .7rem 1rem; transform: translateY(-180%); color: var(--ink); background: var(--paper); text-decoration: none; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: fixed; z-index: 100; top: 0; left: 0; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; width: 100%; min-height: 68px; padding: 0 var(--pad); border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent); background: color-mix(in srgb, var(--ink) 88%, transparent); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: center; gap: .7rem; width: fit-content; font-weight: 600; letter-spacing: -.025em; text-decoration: none; }
.brand img { width: 34px; height: 34px; }
.site-nav { display: flex; align-items: center; gap: 1.7rem; color: var(--muted); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
.site-nav a, .site-footer a { text-decoration: none; }
.site-nav a:hover, .site-footer a:hover { color: var(--accent-light); }
.header-status { justify-self: end; display: inline-flex; align-items: center; gap: .55rem; padding: .5rem .8rem; border: 1px solid var(--line); color: var(--muted); font-size: .72rem; letter-spacing: .07em; text-decoration: none; text-transform: uppercase; }
.status-dot { width: .5rem; height: .5rem; border: 2px solid color-mix(in srgb, var(--warning) 28%, transparent); border-radius: 50%; background: var(--warning); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 12px; border: 0; color: inherit; background: transparent; }
.menu-toggle span:not(.sr-only) { display: block; height: 1px; margin: 7px 0; background: currentColor; }

.hero { position: relative; min-height: min(52rem, 100svh); padding: clamp(7.25rem, 12vh, 9rem) var(--pad) 3rem; overflow: hidden; border-bottom: 1px solid var(--line-soft); }
.hero::before { content: ""; position: absolute; inset: 0 0 auto auto; width: 58vw; height: 68%; background: radial-gradient(circle at 50% 35%, rgb(165 160 255 / .14), transparent 64%); pointer-events: none; }
.hero-grid { position: absolute; inset: 0; opacity: .16; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(to bottom, black, transparent 80%); pointer-events: none; }
.hero-copy { position: relative; z-index: 2; width: min(59rem, 68vw); }
.section-label { margin: 0 0 1.35rem; color: var(--accent-light); font-size: .82rem; font-weight: 600; }
h1, h2, h3, p { text-wrap: pretty; }
h1 { margin: 0; max-width: 12ch; font-size: clamp(3.6rem, 7.7vw, 7.8rem); font-weight: 600; line-height: .88; letter-spacing: -.04em; }
h1 span { color: transparent; -webkit-text-stroke: 1.5px var(--accent); text-stroke: 1.5px var(--accent); }
.hero-intro { max-width: 45rem; margin: 1.6rem 0 0; color: #cbcdd6; font-size: clamp(1rem, 1.3vw, 1.2rem); line-height: 1.58; }
.hero-actions, .release-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.65rem; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: .78rem 1.2rem; border: 1px solid var(--line); font-size: .78rem; font-weight: 600; letter-spacing: .06em; text-decoration: none; text-transform: uppercase; transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease; }
.button-primary { color: var(--ink); border-color: var(--accent); background: var(--accent); }
.button-primary:hover { background: var(--accent-light); }
.button-quiet:hover { color: var(--paper); border-color: var(--accent); }
.button-disabled { color: #777b87; border-color: var(--line-soft); cursor: not-allowed; }

.calibration-board { position: absolute; z-index: 1; top: 8.5rem; right: var(--pad); width: min(31vw, 29rem); border: 1px solid var(--line); background: color-mix(in srgb, var(--ink-soft) 94%, transparent); }
.calibration-topline, .calibration-readout { display: flex; justify-content: space-between; gap: 1rem; padding: .75rem 1rem; color: var(--muted); font: 600 .72rem/1.4 "Poppins", sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.calibration-topline { border-bottom: 1px solid var(--line); }
.calibration-stage { position: relative; display: grid; min-height: 21rem; place-items: center; overflow: hidden; background-image: linear-gradient(var(--line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--line-soft) 1px, transparent 1px); background-size: 24px 24px; }
.pixel-field { position: relative; display: grid; width: 52%; aspect-ratio: 1; place-items: center; border: 1px solid var(--accent-deep); transform: rotate(45deg); }
.pixel-field::before, .pixel-field::after { content: ""; position: absolute; background: var(--accent-deep); }
.pixel-field::before { width: 1px; height: 142%; }
.pixel-field::after { width: 142%; height: 1px; }
.pixel-core { width: 37%; aspect-ratio: 1; background: var(--accent); }
.dimension { position: absolute; margin: 0; padding: .1rem .35rem; color: var(--accent-light); background: var(--ink-soft); font-size: .72rem; letter-spacing: .08em; }
.dimension-x { bottom: 1.4rem; left: 50%; transform: translateX(-50%); }
.dimension-y { top: 50%; right: .9rem; transform: rotate(90deg) translateX(50%); transform-origin: right center; }
.crop-mark { position: absolute; width: 1.2rem; height: 1.2rem; border-color: var(--paper); opacity: .7; }
.crop-mark-a { top: 1.2rem; left: 1.2rem; border-top: 1px solid; border-left: 1px solid; }
.crop-mark-b { right: 1.2rem; bottom: 1.2rem; border-right: 1px solid; border-bottom: 1px solid; }
.calibration-readout { display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--line); }
.calibration-readout b { margin-right: .45rem; color: var(--paper); }
.hero-proof { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(3, 1fr); width: min(66rem, 72vw); margin-top: clamp(2.5rem, 5vh, 4.5rem); border-top: 1px solid var(--line); }
.hero-proof > div { display: grid; grid-template-columns: auto 1fr; gap: 0 .8rem; padding: 1.1rem 1.5rem 0 0; }
.hero-proof span { grid-row: 1 / 3; color: var(--accent); font-size: .72rem; }
.hero-proof strong { font-size: .78rem; font-weight: 600; }
.hero-proof small { color: var(--muted); font-size: .75rem; }

.section { position: relative; width: min(100%, var(--max)); margin: 0 auto; padding: clamp(3.5rem, 6vw, 6rem) var(--pad); }
.section-compact { padding-top: clamp(3.5rem, 5vw, 5rem); padding-bottom: clamp(3.5rem, 5vw, 5rem); }
.section + .section { border-top: 1px solid var(--line-soft); }
.section-heading { display: grid; grid-template-columns: minmax(8rem, .5fr) minmax(19rem, 1.4fr) minmax(16rem, .7fr); gap: clamp(1.5rem, 4vw, 5rem); align-items: start; }
.section-heading .section-label { margin-top: .5rem; }
h2 { margin: 0; font-size: clamp(2.35rem, 4.5vw, 4.6rem); font-weight: 600; line-height: 1; letter-spacing: -.03em; }
.section-heading > p:last-child { margin: .45rem 0 0; color: var(--muted); font-size: .98rem; }

.product-frame { margin: clamp(2.25rem, 4vw, 3.75rem) 0 0; border: 1px solid var(--line); background: #0c0d11; }
.product-frame-bar { display: flex; justify-content: space-between; padding: .7rem 1rem; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.product-frame img { width: 100%; height: auto; object-fit: contain; }
.product-frame figcaption { padding: .85rem 1rem; color: var(--muted); font-size: .72rem; }
.product-gallery { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:1rem; margin-top:1rem; }
.product-gallery figure { min-width:0; margin:0; border:1px solid var(--line); background:var(--ink-soft); }
.product-gallery img { width:100%; height:auto; aspect-ratio:1350/689; object-fit:contain; background:#0c0d11; }
.product-gallery figcaption { display:grid; gap:.2rem; padding:.85rem 1rem; }
.product-gallery b { font-size:.78rem; }
.product-gallery span { color:var(--muted); font-size:.75rem; }

.core-section { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(3rem, 8vw, 10rem); }
.core-copy { padding-top: .6rem; }
.core-copy p { margin: 0 0 1.4rem; color: #c3c5cd; }
.text-link { display: inline-flex; gap: .4rem; margin-top: 1rem; color: var(--accent-light); font-size: .82rem; font-weight: 600; text-underline-offset: .35rem; }

.compute-section { overflow: hidden; }
.compute-map { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: stretch; margin-top: 2.75rem; }
.compute-node { min-height: 12.5rem; padding: 1.35rem; border: 1px solid var(--line); background: var(--ink-soft); }
.compute-node.is-proven { border-color: var(--accent-deep); background: linear-gradient(145deg, rgb(165 160 255 / .12), var(--ink-soft) 60%); }
.node-state { margin: 0 0 2.5rem; color: var(--accent-light); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.compute-node h3 { margin: 0 0 .8rem; font-size: clamp(1.25rem, 2vw, 2rem); line-height: 1.1; }
.compute-node > p:last-child { margin: 0; color: var(--muted); font-size: .82rem; }
.route { display: flex; width: clamp(2rem, 5vw, 5rem); align-items: center; }
.route::before { content: ""; width: 100%; height: 1px; background: var(--line); }
.route span { width: .45rem; height: .45rem; margin-left: -.45rem; border-radius: 50%; background: var(--accent); }
.evidence-note { max-width: 65rem; margin: 2rem 0 0 auto; padding: .8rem 1rem; border: 1px solid color-mix(in srgb, var(--warning) 50%, var(--line)); color: var(--muted); font-size: .78rem; }
.evidence-note strong { color: var(--paper); }

.model-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(2.5rem, 6vw, 6rem); align-items: center; margin-top: 2.75rem; }
.model-card-stack { display: grid; gap: .8rem; padding: 1.2rem; border: 1px solid var(--line); background: #0e0f14; }
.model-card { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem; border: 1px solid var(--line-soft); background: var(--ink-soft); }
.model-card.selected { border-color: var(--accent-deep); background: rgb(165 160 255 / .09); }
.model-card > div { display: flex; align-items: center; gap: 1rem; }
.model-card span span { display: grid; }
.model-card b { font-size: .85rem; }
.model-card small, .model-card > p { color: var(--muted); font-size: .75rem; }
.model-icon { display: grid; width: 2.5rem; height: 2.5rem; place-items: center; border: 1px solid var(--line); color: var(--accent-light); font-weight: 600; }
.model-copy > p { color: #c6c8d0; font-size: 1.05rem; }
.benchmark-empty { display: flex; gap: 1rem; align-items: center; margin-top: 2rem; padding: 1rem; border: 1px solid var(--line); }
.benchmark-line { width: 2.7rem; height: 2.7rem; border: 1px dashed var(--accent-deep); border-radius: 50%; }
.benchmark-empty div { display: grid; }
.benchmark-empty b { font-size: .77rem; }
.benchmark-empty small { color: var(--muted); font-size: .75rem; }

.phase-list { margin: 2.75rem 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.phase-list li { display: grid; grid-template-columns: 5rem .7fr 1.3fr; gap: 1rem; align-items: center; min-height: 4.7rem; border-bottom: 1px solid var(--line); }
.phase-list span { color: var(--accent); font-size: .72rem; }
.phase-list b { font-size: 1rem; }
.phase-list small { color: var(--muted); }

.archive-section { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(3rem, 7vw, 7rem); align-items: center; min-height: 35rem; }
.archive-visual { position: relative; min-height: 23rem; }
.archive-file { position: absolute; display: grid; width: min(79%, 28rem); aspect-ratio: 4 / 3; align-content: end; padding: 1.5rem; border: 1px solid var(--line); background: var(--panel); }
.archive-file::before { content: ""; position: absolute; inset: 1.3rem; border: 1px solid var(--line); background-image: linear-gradient(135deg, transparent 49.5%, var(--line) 50%, transparent 50.5%), linear-gradient(45deg, transparent 49.5%, var(--line) 50%, transparent 50.5%); }
.archive-file.back { top: 0; left: 0; transform: rotate(-6deg); }
.archive-file.front { right: 0; bottom: 0; border-color: var(--accent-deep); transform: rotate(4deg); }
.archive-file span, .archive-file b, .archive-file small { position: relative; z-index: 1; width: fit-content; padding: .12rem .35rem; background: var(--panel); }
.archive-file span { color: var(--accent-light); font-size: .72rem; letter-spacing: .08em; }
.archive-file small { color: var(--muted); font-size: .75rem; }
.archive-seal { position: absolute; z-index: 3; right: 9%; bottom: 23%; display: grid; width: 8rem; aspect-ratio: 1; place-items: center; border: 1px solid var(--accent); border-radius: 50%; color: var(--accent-light); background: var(--ink); font-size: .72rem; font-weight: 600; transform: rotate(-8deg); }
.archive-copy p:not(.section-label) { color: var(--muted); }
.archive-copy .small-copy { margin-top: 1.8rem; padding: .8rem 1rem; border: 1px solid color-mix(in srgb, var(--warning) 45%, var(--line)); font-size: .75rem; }

.evidence-grid { display: grid; grid-template-columns: repeat(2, 1fr); margin-top: 2.75rem; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.evidence-grid article { min-height: 11rem; padding: 1.35rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.evidence-grid span { color: var(--accent-light); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.evidence-grid h3 { margin: 2.4rem 0 .5rem; font-size: 1.35rem; }
.evidence-grid p { margin: 0; color: var(--muted); font-size: .8rem; }

.privacy-section { display: grid; grid-template-columns: 1fr auto; gap: 4rem; align-items: center; }
.privacy-copy { max-width: 62rem; }
.privacy-copy p:last-child { max-width: 48rem; color: var(--muted); }
.privacy-stamp { display: grid; grid-template-columns: auto auto; gap: 0 .8rem; align-items: center; width: 16rem; padding: 1.4rem; border: 1px solid var(--success); color: var(--success); transform: rotate(-2deg); }
.privacy-stamp span { grid-row: 1 / 3; font-size: 3rem; font-weight: 600; line-height: 1; }
.privacy-stamp strong { font-size: 1rem; line-height: 1; }
.privacy-stamp small { grid-column: 1 / 3; margin-top: .8rem; color: var(--muted); font-size: .72rem; }

.release-section { padding-bottom: clamp(4rem, 7vw, 7rem); }
.release-card { padding: clamp(2rem, 6vw, 6rem); border: 1px solid var(--accent-deep); background: linear-gradient(130deg, rgb(165 160 255 / .14), transparent 50%), var(--ink-soft); }
.release-card > p:not(.section-label) { max-width: 54rem; color: var(--muted); }

.site-footer { display: grid; grid-template-columns: 1fr auto; gap: 2rem 4rem; padding: 3rem var(--pad); border-top: 1px solid var(--line); color: var(--muted); }
.site-footer p { margin: 0; font-size: .78rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 1.2rem; font-size: .72rem; }
.site-footer small { grid-column: 1 / -1; font-size: .7rem; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity 550ms ease, transform 550ms ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1100px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-nav { position: absolute; top: 68px; right: 0; left: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 1rem var(--pad); border-bottom: 1px solid var(--line); background: var(--ink); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: .9rem 0; border-bottom: 1px solid var(--line-soft); }
  .menu-toggle { display: block; }
  .header-status { display: none; }
  .hero-copy { width: 68vw; }
  .calibration-board { width: 33vw; }
  .hero-proof { width: 100%; }
  .section-heading { grid-template-columns: 1fr 2fr; }
  .section-heading > p:last-child { grid-column: 2; }
}

@media (max-width: 760px) {
  .site-header { min-height: 62px; }
  .site-nav { top: 62px; }
  .hero { min-height: auto; padding-top: 7rem; }
  .hero-copy { width: 100%; }
  h1 { font-size: clamp(3rem, 13vw, 4.2rem); }
  .calibration-board { position: relative; top: auto; right: auto; width: 100%; margin-top: 2.5rem; }
  .calibration-stage { min-height: 18rem; }
  .hero-proof { grid-template-columns: 1fr; margin-top: 2.25rem; }
  .hero-proof > div { border-bottom: 1px solid var(--line-soft); padding-bottom: 1rem; }
  .section-heading, .core-section, .model-layout, .archive-section, .privacy-section, .product-gallery { grid-template-columns: 1fr; }
  .section-heading > p:last-child { grid-column: auto; }
  .compute-map { grid-template-columns: 1fr; }
  .route { width: 1px; height: 2rem; margin-left: 2rem; }
  .route::before { width: 1px; height: 100%; }
  .route span { margin: 0 0 -.45rem -.23rem; align-self: end; }
  .compute-node { min-height: 13rem; }
  .node-state { margin-bottom: 2.5rem; }
  .phase-list li { grid-template-columns: 3rem 1fr; padding: 1rem 0; }
  .phase-list small { grid-column: 2; }
  .archive-section { min-height: auto; }
  .archive-visual { min-height: 23rem; }
  .evidence-grid { grid-template-columns: 1fr; }
  .privacy-stamp { justify-self: start; }
  .site-footer { grid-template-columns: 1fr; }
  .site-footer small { grid-column: auto; }
}

@media (max-width: 520px) {
  .product-frame-bar { align-items: flex-start; flex-direction: column; }
  .model-card { align-items: flex-start; flex-direction: column; }
  .archive-file { width: 82%; }
}

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

@media (forced-colors: active) {
  .status-dot, .pixel-core, .route span { border: 1px solid ButtonText; }
  h1 span { color: CanvasText; -webkit-text-stroke: 0; }
}