:root {
  --black: #0b0b0c;
  --white: #f1f1ee;
  --muted: #99999e;
  --signal: #ff3d28;
  --signal-dark: #b52518;
  --line: rgba(241, 241, 238, .18);
  --line-dark: rgba(11, 11, 12, .2);
  --pad: clamp(22px, 5vw, 78px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--white); background: var(--black); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; }
a { color: inherit; text-decoration: none; }
svg { fill: none; stroke: currentColor; stroke-linejoin: round; shape-rendering: geometricPrecision; }
.perforations { fill: currentColor; stroke: none; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 100; top: 10px; left: 10px; padding: 10px 14px; color: var(--black); background: var(--white); transform: translateY(-160%); }
.skip-link:focus { transform: none; }

.site-header { position: absolute; z-index: 20; inset: 0 0 auto; height: 84px; padding: 0 var(--pad); display: flex; align-items: center; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 12px; font-weight: 700; letter-spacing: .16em; }
.brand-mark { width: 34px; height: 34px; stroke-width: 1.5; }

.hero { position: relative; min-height: 720px; height: 92svh; overflow: hidden; }
.hero-grid { position: absolute; inset: 84px 0 0; opacity: .22; background-image: linear-gradient(to right, transparent calc(100% - 1px), #65656b 1px), linear-gradient(to bottom, transparent calc(100% - 1px), #65656b 1px); background-size: calc((100vw - 2 * var(--pad)) / 6) 120px; background-position: var(--pad) 0; mask-image: linear-gradient(to bottom, black, transparent 88%); }
.hero-mark { position: absolute; right: -8vw; top: 7%; width: min(58vw, 820px); height: min(58vw, 820px); color: rgba(241, 241, 238, .055); stroke-width: .42; transform: rotate(-7deg); }
.hero-content { position: absolute; z-index: 2; left: var(--pad); top: 51%; width: min(1020px, 83vw); transform: translateY(-48%); }
.eyebrow, .section-label { margin: 0; color: var(--signal); font: 600 10px/1.4 "SFMono-Regular", Consolas, monospace; letter-spacing: .16em; text-transform: uppercase; }
h1, h2 { font-weight: 600; letter-spacing: -.065em; }
h1 { margin: 27px 0 0; font-size: clamp(64px, 9.5vw, 146px); line-height: .84; }
.hero-copy { max-width: 680px; margin: 44px 0 0; color: #b8b8bc; font-size: clamp(16px, 1.5vw, 21px); line-height: 1.6; }

.facts { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.facts article { min-height: 145px; padding: 28px var(--pad) 28px 28px; display: flex; flex-direction: column; justify-content: space-between; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.facts span { color: var(--muted); font: 500 9px/1.3 "SFMono-Regular", Consolas, monospace; letter-spacing: .1em; text-transform: uppercase; }
.facts strong { max-width: 240px; font-size: clamp(19px, 2vw, 28px); letter-spacing: -.04em; }

.section-pad { padding: clamp(90px, 11vw, 165px) var(--pad); }
.section-heading { display: grid; grid-template-columns: 1fr 3fr; gap: 5vw; margin-bottom: 90px; }
.section-heading h2 { max-width: 1060px; margin: 0; font-size: clamp(44px, 6vw, 90px); line-height: .98; }

.workflow-list { border-top: 1px solid var(--line); }
.workflow-list article { min-height: 190px; padding: 34px 0; display: grid; grid-template-columns: 70px 1.15fr 1.6fr; gap: 4vw; align-items: start; border-bottom: 1px solid var(--line); }
.workflow-list article > span { color: var(--signal); font: 500 10px/1 "SFMono-Regular", Consolas, monospace; }
.workflow-list h3 { margin: 0; font-size: clamp(29px, 3.4vw, 52px); line-height: 1; letter-spacing: -.045em; }
.workflow-list p { max-width: 590px; margin: 4px 0 0; color: var(--muted); line-height: 1.65; }

.file-model { color: var(--black); background: var(--white); }
.file-model .section-label, .compatibility .section-label { color: var(--signal-dark); }
.file-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: stretch; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.file-flow article { min-height: 250px; padding: 34px 28px; display: flex; flex-direction: column; }
.file-flow article span { color: #77777c; font: 500 9px/1 "SFMono-Regular", Consolas, monospace; }
.file-flow article strong { margin-top: auto; font: 600 clamp(22px, 2.6vw, 40px)/1 "SFMono-Regular", Consolas, monospace; letter-spacing: -.05em; }
.file-flow article p { max-width: 260px; margin: 18px 0 0; color: #5f5f64; line-height: 1.55; }
.file-flow > i { width: 68px; display: grid; place-items: center; border-inline: 1px solid var(--line-dark); color: var(--signal-dark); font: normal 24px/1 "SFMono-Regular", Consolas, monospace; }
.file-note { max-width: 650px; margin: 50px 0 0 auto; color: #4f4f53; font-size: clamp(17px, 1.45vw, 21px); line-height: 1.6; }

.details { background: var(--black); }
.detail-copy { display: grid; grid-template-columns: 1.2fr 1fr; gap: 9vw; border-top: 1px solid var(--line); padding-top: 46px; }
.detail-copy > p { max-width: 680px; margin: 0; color: #b0b0b4; font-size: clamp(19px, 2vw, 29px); line-height: 1.55; }
.detail-copy dl { margin: 0; }
.detail-copy dl div { padding: 16px 0; display: grid; grid-template-columns: 145px 1fr; gap: 20px; border-bottom: 1px solid var(--line); }
.detail-copy dl div:first-child { padding-top: 0; }
.detail-copy dt { color: #707075; font: 500 9px/1.3 "SFMono-Regular", Consolas, monospace; letter-spacing: .08em; text-transform: uppercase; }
.detail-copy dd { margin: 0; font-size: 14px; }

.compatibility { color: var(--black); background: var(--white); }
.requirements { margin: 0; border-top: 1px solid var(--line-dark); }
.requirements div { min-height: 105px; display: grid; grid-template-columns: 1fr 3fr; gap: 5vw; align-items: center; border-bottom: 1px solid var(--line-dark); }
.requirements dt { color: #6c6c70; font: 500 9px/1.3 "SFMono-Regular", Consolas, monospace; letter-spacing: .1em; text-transform: uppercase; }
.requirements dd { margin: 0; font-size: clamp(23px, 2.8vw, 42px); font-weight: 600; letter-spacing: -.045em; }

footer { min-height: 150px; padding: 34px var(--pad); display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); }
footer > p { color: #68686d; font: 500 9px/1 "SFMono-Regular", Consolas, monospace; letter-spacing: .1em; text-transform: uppercase; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .8, .2, 1); }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .facts { grid-template-columns: repeat(2, 1fr); }
  .section-heading { grid-template-columns: 1fr; }
  .section-heading h2 { margin-top: 34px; }
  .workflow-list article { grid-template-columns: 50px 1fr 1.4fr; }
  .file-flow > i { width: 40px; }
  .detail-copy { grid-template-columns: 1fr; gap: 60px; }
}

@media (max-width: 640px) {
  .site-header { height: 72px; }
  .brand { font-size: 9px; letter-spacing: .1em; }
  .brand-mark { width: 31px; height: 31px; }
  .hero { min-height: 720px; height: 92svh; }
  .hero-grid { top: 72px; background-size: calc((100vw - 2 * var(--pad)) / 3) 100px; }
  .hero-content { top: 44%; width: calc(100% - 2 * var(--pad)); }
  h1 { font-size: clamp(58px, 18vw, 82px); line-height: .87; }
  .hero-copy { margin-top: 32px; }
  .hero-mark { width: 95vw; height: 95vw; right: -38vw; top: 19%; }
  .facts { grid-template-columns: 1fr; }
  .facts article { min-height: 120px; padding: 24px var(--pad); }
  .section-pad { padding-top: 90px; padding-bottom: 90px; }
  .section-heading { margin-bottom: 58px; }
  .section-heading h2 { font-size: clamp(40px, 12vw, 59px); }
  .workflow-list article { min-height: 0; padding: 28px 0 42px; grid-template-columns: 32px 1fr; gap: 16px; }
  .workflow-list p { grid-column: 2; }
  .file-flow { grid-template-columns: 1fr; }
  .file-flow article { min-height: 210px; }
  .file-flow > i { width: 100%; height: 48px; border: 0; border-block: 1px solid var(--line-dark); }
  .detail-copy dl div { grid-template-columns: 110px 1fr; }
  .requirements div { min-height: 95px; grid-template-columns: 110px 1fr; gap: 16px; }
  .requirements dd { font-size: 20px; }
  footer { align-items: flex-start; flex-direction: column; gap: 30px; }
  footer > p { display: none; }
}

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