:root {
  color-scheme: light;
  --black: #1d1d1f;
  --gray: #6e6e73;
  --line: #d2d2d7;
  --surface: #f5f5f7;
  --white: #fff;
  --blue: #0066cc;
  --night: #0b0b0c;
  --night-line: #353537;
  --green: #1f7a35;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  color: var(--black);
  background: var(--white);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-width: 320px; margin: 0; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; border-radius: 5px; }
h1, h2, h3, p { text-wrap: balance; }
h1, h2, h3 { margin: 0; letter-spacing: -.046em; }
h1 { font-size: clamp(54px, 7.7vw, 104px); line-height: .94; }
h2 { font-size: clamp(40px, 5.4vw, 72px); line-height: 1; }

.frame { width: min(1120px, calc(100% - 96px)); margin-inline: auto; }
.nav-wrap { position: relative; z-index: 10; }
.nav { width: min(1120px, calc(100% - 96px)); height: 56px; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(0,0,0,.12); }
.wordmark { font-size: 15px; font-weight: 650; letter-spacing: -.025em; }
.nav div { display: flex; gap: 30px; }
.nav div a { color: #424245; font-size: 13px; }
.nav div a:hover, .nav div a[aria-current="page"] { color: var(--blue); }
.label { margin: 0 0 22px; color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.lead { max-width: 800px; margin: 30px auto 28px; color: var(--gray); font-size: clamp(20px, 2.2vw, 28px); line-height: 1.38; }
.lead.left { margin-left: 0; }
.body-large { max-width: 700px; color: var(--gray); font-size: 21px; line-height: 1.52; }
.cta { color: var(--blue); font-size: 18px; }
.cta:hover { text-decoration: underline; }

.home-hero { padding-block: clamp(110px, 15vw, 190px) 150px; text-align: center; }
.capability-space { overflow: hidden; padding-block: 130px 150px; background: var(--surface); }
.section-title.center { text-align: center; }
.topology { position: relative; min-height: 650px; margin-top: 80px; }
.topology-grid { position: absolute; inset: 8% 0; border-block: 1px solid rgba(210,210,215,.55); }
.topology-grid::before, .topology-grid::after { position: absolute; background: rgba(210,210,215,.55); content: ""; }
.topology-grid::before { top: 0; bottom: 0; left: 50%; width: 1px; }
.topology-grid::after { top: 50%; right: 0; left: 0; height: 1px; }
.os-node, .capability-card, .future-card { position: absolute; z-index: 2; display: flex; flex-direction: column; background: var(--white); }
.os-node { top: 230px; left: calc(50% - 104px); width: 208px; height: 208px; align-items: center; justify-content: center; border: 1px solid var(--black); border-radius: 50%; text-align: center; }
.os-node span, .future-card > span { margin-bottom: 20px; color: var(--gray); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; letter-spacing: .08em; }
.os-node strong { font-size: 25px; }
.os-node small, .future-card small { margin-top: 7px; color: var(--gray); }
.capability-card { top: 15px; right: 3%; width: 350px; min-height: 275px; padding: 28px; border: 1px solid var(--line); border-radius: 28px; box-shadow: 0 20px 55px rgba(0,0,0,.09); transition: transform .2s ease, box-shadow .2s ease; }
.capability-card:hover { transform: translateY(-4px); box-shadow: 0 28px 64px rgba(0,0,0,.13); }
.card-meta { display: flex; justify-content: space-between; color: var(--gray); font-family: ui-monospace, monospace; font-size: 11px; }
.card-meta .online { color: var(--green); }
.card-meta .online::before { display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: #34c759; content: ""; }
.capability-card h3 { margin-top: 52px; font-size: 29px; line-height: 1.03; }
.capability-card p { max-width: 250px; margin: 18px 0 0; color: var(--gray); line-height: 1.4; }
.open { position: absolute; right: 28px; bottom: 26px; color: var(--blue); font-size: 24px; }
.future-card { bottom: 14px; left: 4%; width: 250px; min-height: 155px; justify-content: flex-end; padding: 24px; border: 1px dashed #a8a8ad; border-radius: 20px; background: rgba(255,255,255,.35); color: var(--gray); }
.future-card strong { font-size: 18px; }
.route { position: absolute; z-index: 1; height: 1px; background: #8e8e93; transform-origin: left; }
.route i { position: absolute; top: -3px; right: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--black); }
.route-primary { top: 330px; left: 50%; width: 360px; transform: rotate(-34deg); }
.route-future { top: 374px; left: 30%; width: 250px; transform: rotate(146deg); }
.system-statement { display: grid; grid-template-columns: 1fr 2fr; gap: 90px; padding-block: 155px; align-items: start; }
.statement-index span { display: block; font-size: clamp(140px, 18vw, 240px); font-weight: 700; line-height: .78; letter-spacing: -.09em; }
.statement-index small { display: block; margin-top: 28px; color: var(--gray); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.system-statement h2 { margin-bottom: 34px; }

.process-intro { padding-block: 62px 125px; }
.back { display: inline-block; margin-bottom: 92px; color: var(--blue); font-size: 14px; }
.release-data { display: grid; grid-template-columns: repeat(3, 1fr); margin: 85px 0 0; border-block: 1px solid var(--line); }
.release-data div { display: flex; align-items: baseline; justify-content: space-between; padding: 22px 24px; border-right: 1px solid var(--line); }
.release-data div:last-child { border: 0; }
.release-data dt { color: var(--gray); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; }
.release-data dd { margin: 0; font-size: 23px; font-weight: 650; }

.process-system { padding-block: 135px 150px; background: var(--night); color: #f5f5f7; }
.process-system .blue { color: #2997ff; }
.map-caption { max-width: 700px; margin: 28px 0 70px; color: #a1a1a6; font-size: 18px; line-height: 1.5; }
.lane-name { margin: 32px 0 12px; color: #86868b; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.phase-lane { display: grid; margin: 0; padding: 0; list-style: none; }
.phase-lane.planning { grid-template-columns: repeat(3, 1fr); }
.phase-lane.production { grid-template-columns: repeat(6, 1fr); }
.phase-lane li { position: relative; min-height: 164px; padding: 22px 17px; border: 1px solid var(--night-line); border-right: 0; }
.phase-lane li:last-child { border-right: 1px solid var(--night-line); }
.phase-lane li::after { position: absolute; z-index: 3; top: 49%; right: -4px; width: 8px; height: 8px; border-radius: 50%; background: #86868b; content: ""; }
.phase-lane li:last-child::after { display: none; }
.phase-lane li > span { display: block; margin-bottom: 44px; color: #86868b; font-family: ui-monospace, monospace; font-size: 10px; }
.phase-lane strong { display: block; margin-bottom: 7px; font-size: 16px; line-height: 1.1; }
.phase-lane small { color: #a1a1a6; line-height: 1.35; }
.phase-lane .owner-point { border-top: 2px solid #2997ff; }
.phase-lane .owner-point strong { color: #2997ff; }
.return-loop { position: relative; width: 33.333%; height: 58px; margin-left: 0; border: 1px solid #58585c; border-top: 0; color: #a1a1a6; text-align: center; }
.return-loop::before, .return-loop::after { position: absolute; top: -5px; width: 9px; height: 9px; border-radius: 50%; background: #ff9f0a; content: ""; }
.return-loop::before { left: -5px; }
.return-loop::after { right: -5px; }
.return-loop span { position: relative; top: 43px; padding: 0 10px; background: var(--night); color: #ff9f0a; font-size: 11px; }
.closure-decision { margin: 18px 0 0; color: #2997ff; font-size: 12px; text-align: right; }

.role-system { padding-block: 150px; }
.role-matrix { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 75px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.role-matrix article { min-height: 220px; padding: 25px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.role-matrix article > span { color: var(--gray); font-family: ui-monospace, monospace; font-size: 10px; letter-spacing: .06em; }
.role-matrix h3 { margin-top: 62px; font-size: 24px; }
.role-matrix p { margin-bottom: 0; color: var(--gray); line-height: 1.45; }

.history-space { padding-block: 140px; background: var(--surface); }
.version-line { max-width: 860px; margin: 80px 0 0 auto; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.version-line li { position: relative; display: grid; grid-template-columns: 100px 1fr 110px; gap: 28px; padding: 27px 0; align-items: start; border-bottom: 1px solid var(--line); }
.version-line li::before { position: absolute; top: -5px; left: -4px; width: 8px; height: 8px; border-radius: 50%; background: #86868b; content: ""; }
.version-line li.stable::before { background: #34c759; }
.version-line li.candidate::before { background: var(--blue); }
.version-line time, .version-line li > span { color: var(--gray); font-family: ui-monospace, monospace; font-size: 11px; }
.version-line div strong { font-size: 18px; }
.version-line p { margin: 7px 0 0; color: var(--gray); line-height: 1.45; }
.version-line li > span { text-align: right; text-transform: uppercase; }

.experiment { padding-block: 150px; }
.comparison { display: grid; grid-template-columns: 1fr 82px 1fr; gap: 24px; margin-top: 72px; align-items: center; }
.comparison article { min-height: 430px; padding: 28px; border: 1px solid var(--line); border-radius: 24px; }
.comparison-head { display: flex; justify-content: space-between; margin-bottom: 52px; color: var(--blue); font-family: ui-monospace, monospace; font-size: 11px; }
.comparison-head i { color: var(--gray); font-style: normal; }
.comparison article > strong { font-size: 24px; letter-spacing: -.03em; }
.comparison article > p { color: var(--gray); line-height: 1.5; }
.compare-link { display: flex; align-items: center; }
.compare-link span { flex: 1; border-top: 1px solid var(--black); }
.compare-link b { display: grid; width: 34px; height: 34px; place-items: center; border: 1px solid var(--black); border-radius: 50%; font-family: ui-monospace, monospace; font-size: 9px; }
.metric-list { margin: 25px 0 0; }
.metric-list div { display: flex; justify-content: space-between; gap: 20px; padding: 10px 0; border-top: 1px solid var(--line); }
.metric-list dt, .metric-list dd { margin: 0; font-size: 12px; line-height: 1.35; }
.metric-list dt { color: var(--gray); }
.metric-list dd { text-align: right; }
.result-note { max-width: 820px; margin-top: 34px; font-size: 17px; line-height: 1.5; }
.outcome-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 72px; }
.outcome-grid article { padding: 30px; border: 1px solid var(--line); border-top-width: 3px; border-radius: 0 0 24px 24px; }
.outcome-grid .outcome-fail { border-top-color: #ff3b30; }
.outcome-grid .outcome-warning { border-top-color: #ff9f0a; }
.outcome-grid span { display: block; margin-bottom: 34px; color: var(--gray); font-family: ui-monospace, monospace; font-size: 11px; }
.outcome-grid strong { display: block; font-size: 24px; letter-spacing: -.03em; }
.outcome-grid p { margin: 16px 0 0; color: var(--gray); line-height: 1.5; }
.method-note { margin-top: 25px; color: var(--gray); font-size: 12px; line-height: 1.5; }
.method-note a { color: var(--blue); }
.fail-text { color: #d70015; font-weight: 700; }
.warn-text { color: #b25000; font-weight: 700; }
.audit-space, .recommendation-space { padding-block: 145px; background: var(--night); color: #f5f5f7; }
.audit-space .blue, .recommendation-space .blue { color: #2997ff; }
.table-wrap { overflow-x: auto; margin-top: 72px; border-top: 1px solid var(--night-line); }
.audit-table { width: 100%; min-width: 900px; border-collapse: collapse; text-align: left; }
.audit-table th, .audit-table td { padding: 21px 18px; border-bottom: 1px solid var(--night-line); vertical-align: top; font-size: 13px; line-height: 1.48; }
.audit-table thead th { color: #86868b; font-family: ui-monospace, monospace; font-size: 10px; letter-spacing: .07em; text-transform: uppercase; }
.audit-table tbody th { width: 17%; color: #f5f5f7; }
.audit-table tbody td { width: 27.66%; color: #a1a1a6; }
.token-space { padding-block: 150px; }
.token-hero { display: grid; grid-template-columns: 1.6fr 1fr 1fr; margin-top: 70px; border-block: 1px solid var(--line); }
.token-hero div { padding: 30px 24px; border-right: 1px solid var(--line); }
.token-hero div:last-child { border-right: 0; }
.token-hero strong, .token-hero span { display: block; }
.token-hero strong { font-size: clamp(26px, 3vw, 42px); letter-spacing: -.045em; }
.token-hero span { margin-top: 8px; color: var(--gray); font-size: 11px; letter-spacing: .04em; text-transform: uppercase; }
.token-bars { display: grid; gap: 25px; margin-top: 75px; }
.token-bars p { display: flex; justify-content: space-between; gap: 20px; margin: 0 0 9px; font-size: 13px; }
.token-bars p span { color: var(--gray); font-family: ui-monospace, monospace; font-size: 11px; }
.token-bars i { display: block; height: 5px; overflow: hidden; background: var(--surface); }
.token-bars b { display: block; height: 100%; background: var(--blue); }
.compact-table { margin-top: 80px; border-top-color: var(--line); }
.compact-table .audit-table th, .compact-table .audit-table td { border-bottom-color: var(--line); }
.compact-table .audit-table tbody th { color: var(--black); }
.compact-table .audit-table tbody td { color: var(--gray); }
.recommendation-list { max-width: 920px; margin: 80px 0 0 auto; padding: 0; list-style: none; border-top: 1px solid var(--night-line); }
.recommendation-list li { display: grid; grid-template-columns: 70px 1fr; gap: 25px; padding: 28px 0; border-bottom: 1px solid var(--night-line); }
.recommendation-list li > span { color: #86868b; font-family: ui-monospace, monospace; font-size: 11px; }
.recommendation-list strong { font-size: 20px; }
.recommendation-list p { max-width: 720px; margin: 10px 0 0; color: #a1a1a6; line-height: 1.5; }
.recommendation-list code { color: #f5f5f7; }
.decision-card { max-width: 920px; margin: 65px 0 0 auto; padding: 34px; border: 1px solid #2997ff; }
.decision-card span { display: block; margin-bottom: 34px; color: #2997ff; font-family: ui-monospace, monospace; font-size: 10px; letter-spacing: .08em; }
.decision-card strong { display: block; font-size: clamp(25px, 3vw, 38px); letter-spacing: -.04em; }
.decision-card p { max-width: 720px; margin: 18px 0 0; color: #a1a1a6; line-height: 1.5; }
.footer { display: flex; justify-content: space-between; padding-block: 28px; border-top: 1px solid var(--line); color: var(--gray); font-size: 12px; }
.footer a { color: var(--blue); }

@media (max-width: 760px) {
  .frame, .nav { width: calc(100% - 32px); }
  h1 { font-size: 44px; }
  .nav div { gap: 18px; }
  .home-hero { padding-block: 90px 105px; }
  .capability-space, .role-system, .history-space, .experiment, .audit-space, .token-space, .recommendation-space { padding-block: 90px; }
  .topology { min-height: 670px; }
  .topology-grid { inset-block: 10%; }
  .capability-card { top: 0; right: 0; width: 92%; min-height: 245px; }
  .os-node { top: 255px; left: calc(50% - 82px); width: 164px; height: 164px; }
  .future-card { bottom: 0; left: 0; width: 76%; }
  .route-primary { top: 320px; left: 51%; width: 180px; transform: rotate(-58deg); }
  .route-future { top: 386px; left: 27%; width: 170px; transform: rotate(119deg); }
  .system-statement { grid-template-columns: 1fr; gap: 70px; padding-block: 100px; }
  .statement-index span { font-size: 150px; }
  .process-intro { padding-block: 48px 90px; }
  .back { margin-bottom: 70px; }
  .release-data { grid-template-columns: 1fr; }
  .release-data div { border-right: 0; border-bottom: 1px solid var(--line); }
  .process-system { padding-block: 90px 110px; }
  .phase-lane.planning, .phase-lane.production { grid-template-columns: 1fr; }
  .phase-lane li { min-height: auto; border-right: 1px solid var(--night-line); border-bottom: 0; }
  .phase-lane li:last-child { border-bottom: 1px solid var(--night-line); }
  .phase-lane li::after { top: auto; right: 50%; bottom: -4px; }
  .phase-lane li > span { margin-bottom: 26px; }
  .return-loop { width: calc(100% - 30px); height: 70px; margin-left: 30px; border-left-color: #ff9f0a; }
  .return-loop span { top: 55px; }
  .closure-decision { margin-top: 30px; text-align: left; }
  .role-matrix { grid-template-columns: 1fr; }
  .role-matrix article { min-height: 190px; }
  .version-line { margin-top: 60px; }
  .version-line li { grid-template-columns: 75px 1fr; gap: 16px; padding-left: 14px; }
  .version-line li > span { grid-column: 2; text-align: left; }
  .comparison { grid-template-columns: 1fr; }
  .outcome-grid { grid-template-columns: 1fr; }
  .token-hero { grid-template-columns: 1fr; }
  .token-hero div { border-right: 0; border-bottom: 1px solid var(--line); }
  .token-hero div:last-child { border-bottom: 0; }
  .token-bars p { align-items: flex-end; }
  .token-bars p span { max-width: 55%; text-align: right; }
  .recommendation-list li { grid-template-columns: 44px 1fr; gap: 10px; }
  .decision-card { padding: 24px; }
  .compare-link { height: 58px; flex-direction: column; }
  .compare-link span { border-top: 0; border-left: 1px solid var(--black); }
  .footer { gap: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}