:root {
  --paper: #f3f1ea;
  --paper-light: #f8f7f2;
  --paper-deep: #e8e6de;
  --ink: #151615;
  --muted: #6f716c;
  --line: #c8c7bf;
  --line-dark: #9d9e98;
  --blue: #3157d5;
  --blue-dark: #2444ad;
  --dark: #111213;
  --dark-line: #34383c;
  --white: #f4f2ea;
  --sans: Arial, "Helvetica Neue", Helvetica, sans-serif;
  --body: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --gutter: clamp(24px, 4.2vw, 72px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; background: var(--paper); }

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.5;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  opacity: .15;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.08'/%3E%3C/svg%3E");
}

a { color: inherit; text-decoration: none; }
button { color: inherit; }

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 14px;
  transform: translateY(-160%);
  background: var(--ink);
  color: var(--white);
  font: 11px var(--mono);
}

.skip-link:focus { transform: none; }

.site-header {
  position: relative;
  z-index: 50;
  height: 76px;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto minmax(260px, 1fr);
  align-items: stretch;
  padding: 0 var(--gutter);
  border-bottom: 1px solid var(--ink);
  background: rgba(243, 241, 234, .96);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  width: max-content;
  font: 700 12px var(--mono);
  letter-spacing: .05em;
}

.brand small {
  padding-left: 16px;
  border-left: 1px solid var(--line-dark);
  color: var(--blue);
  font: 10px var(--mono);
}

.site-header nav {
  display: flex;
  align-items: center;
  height: 100%;
}

.site-header nav a {
  display: grid;
  place-items: center;
  height: 100%;
  padding: 0 20px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font: 10px var(--mono);
  letter-spacing: .04em;
  transition: color .18s, background .18s;
}

.site-header nav a:last-child { border-right: 1px solid var(--line); }
.site-header nav a:hover { background: var(--paper-light); color: var(--blue); }

.header-cta {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--blue);
  font: 700 11px var(--mono);
}

.header-cta b,
.spec-button b {
  display: inline-block;
  font-size: 17px;
  transition: transform .18s ease;
}

.header-cta:hover b,
.spec-button:hover b { transform: translate(2px, -2px); }
.nav-toggle { display: none; }

.hero {
  position: relative;
  min-height: calc(100svh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(340px, 4fr);
  grid-template-rows: 1fr 54px;
  padding-left: var(--gutter);
  border-bottom: 1px solid var(--ink);
}

.page-ruler {
  position: absolute;
  top: 0;
  bottom: 54px;
  left: 0;
  width: var(--gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 0;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font: 8px var(--mono);
}

.page-ruler i { flex: 1; width: 1px; background: var(--line); }
.page-ruler span { padding: 6px 0; writing-mode: vertical-rl; }

.hero-cover {
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(38px, 5.5vw, 90px) clamp(28px, 5vw, 84px) clamp(32px, 4vw, 64px);
}

.hero-kicker,
.strip-head,
.machine-meta,
.registry-label {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font: 9px var(--mono);
  letter-spacing: .09em;
}

.hero h1 {
  margin: clamp(46px, 7vh, 92px) 0 clamp(36px, 6vh, 72px);
  font-family: var(--sans);
  font-size: clamp(72px, 10.2vw, 174px);
  font-weight: 800;
  line-height: .735;
  letter-spacing: -.095em;
}

.hero h1 span { display: block; }
.hero h1 span:nth-child(2) { color: var(--blue); }

.hero-statement {
  display: grid;
  grid-template-columns: 1fr minmax(230px, .7fr);
  gap: 40px;
  align-items: end;
  padding-top: 18px;
  border-top: 1px solid var(--ink);
}

.hero-statement > p {
  margin: 0;
  font: 700 clamp(19px, 2vw, 31px)/.95 var(--sans);
  letter-spacing: -.055em;
}

.hero-statement > p strong { color: var(--blue); }
.hero-statement > div { justify-self: end; max-width: 330px; }
.hero-statement > div p { margin: 0 0 17px; font-size: 15px; line-height: 1.55; }
.hero-statement > div span { color: var(--blue); font: 10px var(--mono); }

.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 34px; }

.spec-button {
  min-height: 49px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 0 16px;
  border: 1px solid var(--blue);
  background: var(--blue);
  color: #fff;
  font: 700 10px var(--mono);
  letter-spacing: .03em;
  transition: background .18s, border-color .18s, color .18s;
}

.spec-button:hover { background: var(--ink); border-color: var(--ink); }

.text-link {
  padding: 8px 0;
  border-bottom: 1px solid var(--line-dark);
  color: var(--muted);
  font: 10px var(--mono);
}
.text-link span { margin-left: 14px; color: var(--blue); }

.hero-spec {
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: clamp(38px, 5.5vw, 90px) var(--gutter) 28px clamp(24px, 3vw, 48px);
  border-left: 1px solid var(--ink);
  background-color: var(--paper-light);
  background-image: linear-gradient(rgba(21,22,21,.035) 1px, transparent 1px);
  background-size: 100% 24px;
}

.cover-meta { margin: 0; border-top: 1px solid var(--ink); }
.cover-meta div { display: grid; grid-template-columns: 34% 1fr; min-height: 52px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.cover-meta dt, .cover-meta dd { margin: 0; font: 9px/1.45 var(--mono); }
.cover-meta dt { color: var(--muted); }
.cover-meta dd { color: var(--ink); }
.cover-meta dd i, .registry-meta dd i { width: 7px; height: 7px; display: inline-block; margin-right: 7px; background: var(--blue); }

.execution-strip { margin-top: auto; padding-top: clamp(35px, 8vh, 100px); }
.strip-head { padding: 0 0 11px; border-bottom: 1px solid var(--ink); }
.execution-strip ol { margin: 0; padding: 0; list-style: none; }
.execution-strip li {
  position: relative;
  min-height: 76px;
  display: grid;
  grid-template-columns: 30% 1fr;
  grid-template-rows: 1fr 1fr;
  align-items: center;
  padding: 10px 0 10px 20px;
  border-bottom: 1px solid var(--line);
}
.execution-strip li::before { content: ""; position: absolute; top: -1px; bottom: -1px; left: 4px; width: 1px; background: var(--blue); }
.execution-strip li::after { content: ""; position: absolute; top: 50%; left: 0; width: 9px; height: 9px; transform: translateY(-50%); border: 1px solid var(--blue); background: var(--paper-light); }
.execution-strip li span, .execution-strip li small { color: var(--muted); font: 8px var(--mono); }
.execution-strip li strong { align-self: end; font: 700 12px var(--mono); }
.execution-strip li small { align-self: start; }
.concept-note { margin: 16px 0 0; color: var(--muted); font: 8px/1.5 var(--mono); }

.hero-timeline {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 var(--gutter) 0 clamp(28px, 5vw, 84px);
  border-top: 1px solid var(--ink);
  color: var(--muted);
  font: 8px var(--mono);
  letter-spacing: .09em;
}
.hero-timeline i { position: relative; flex: 1; height: 1px; background: var(--line-dark); overflow: hidden; }
.hero-timeline i::after { content: ""; position: absolute; inset: 0; transform: translateX(-100%); background: var(--blue); animation: draw-line 1.1s .45s ease forwards; }

.section {
  position: relative;
  padding: clamp(110px, 12vw, 190px) var(--gutter) clamp(110px, 12vw, 190px) calc(var(--gutter) + clamp(42px, 5vw, 76px));
  border-bottom: 1px solid var(--ink);
}

.section-index {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: clamp(110px, 12vw, 190px);
  border-right: 1px solid var(--line);
  font-family: var(--mono);
}
.section-index span { color: var(--blue); font-size: 14px; }
.section-index small { margin-top: 12px; color: var(--muted); font-size: 8px; letter-spacing: .1em; writing-mode: vertical-rl; }

.section-heading {
  display: grid;
  grid-template-columns: 2fr 7fr 3fr;
  gap: clamp(24px, 4vw, 70px);
  align-items: start;
  margin-bottom: clamp(70px, 8vw, 120px);
}
.section-heading > p, .counterparty-intro > p, .acquisition-main > div > p {
  margin: 10px 0 0;
  color: var(--blue);
  font: 9px var(--mono);
  letter-spacing: .1em;
}
.section-heading h2, .counterparty-intro h2 {
  margin: 0;
  font: 700 clamp(48px, 6.2vw, 98px)/.86 var(--sans);
  letter-spacing: -.075em;
}
.section-heading > span { padding-top: 10px; color: var(--muted); font-size: 14px; line-height: 1.6; }

.definition-equation { display: grid; grid-template-columns: 5fr 2fr 5fr; gap: 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.definition-equation article { min-width: 0; min-height: 390px; display: flex; flex-direction: column; padding: 22px 0 26px; }
.definition-equation article:first-child { padding-right: clamp(20px, 4vw, 62px); }
.definition-equation article:last-child { padding-left: clamp(20px, 4vw, 62px); }
.definition-equation article > span { color: var(--muted); font: 9px var(--mono); }
.definition-equation h3 { margin: auto 0 28px; font: 800 clamp(54px, 6.6vw, 104px)/.78 var(--sans); letter-spacing: -.09em; }
.definition-equation article:last-child h3 { color: var(--blue); }
.definition-equation p { max-width: 430px; margin: 0; color: var(--muted); font-size: 15px; }
.operator { display: grid; place-items: center; border-right: 1px solid var(--line); border-left: 1px solid var(--line); color: var(--blue); font: 300 68px var(--sans); }
.definition-result { display: grid; grid-template-columns: 2fr 7fr 3fr; gap: 30px; align-items: center; padding: 26px 0; }
.definition-result span { color: var(--muted); font: 8px var(--mono); }
.definition-result strong { overflow-wrap: anywhere; color: var(--blue); font: 700 clamp(22px, 3.1vw, 50px) var(--mono); letter-spacing: -.055em; }
.definition-result p { margin: 0; color: var(--muted); font-size: 14px; }

.anatomy { background: var(--paper-light); }
.schema-layout { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(44px, 8vw, 140px); }
.schema-tree { align-self: start; border: 1px solid var(--ink); background: var(--paper); }
.tree-root { min-height: 108px; display: flex; flex-direction: column; justify-content: space-between; padding: 17px 20px; border-bottom: 1px solid var(--ink); background: var(--blue); color: #fff; }
.tree-root small { font: 8px var(--mono); }
.tree-root strong { font: 700 27px var(--mono); }
.schema-tree ol { margin: 0; padding: 0; list-style: none; }
.schema-tree li { display: grid; grid-template-columns: 28px 1fr auto; align-items: center; min-height: 58px; padding: 0 18px; border-bottom: 1px solid var(--line); font-family: var(--mono); }
.schema-tree li:last-child { border: 0; }
.schema-tree li span { color: var(--blue); }
.schema-tree li b { font-size: 12px; }
.schema-tree li small { color: var(--muted); font-size: 8px; }
.schema-notes { margin: 0; border-top: 1px solid var(--ink); }
.schema-notes div { display: grid; grid-template-columns: 40% 1fr; gap: 20px; min-height: 74px; align-items: center; border-bottom: 1px solid var(--line); }
.schema-notes dt { color: var(--blue); font: 11px var(--mono); }
.schema-notes dd { margin: 0; color: var(--muted); font-size: 15px; }

.state-machine { background: var(--ink); color: var(--white); }
.state-machine .section-index { border-color: #343735; }
.state-machine .section-heading > span { color: #9ea19c; }
.state-heading { grid-template-columns: 2fr 6fr 4fr; }
.machine { margin-left: 17%; }
.machine-meta { padding: 13px 0; border-top: 1px solid #80837f; border-bottom: 1px solid #80837f; color: #969a95; }
.machine-meta b { color: #fff; font-weight: 400; }
.machine-track { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); padding: 105px 0 155px; }
.machine-track::before { content: ""; position: absolute; top: 145px; left: 8%; right: 8%; height: 1px; background: #555955; }
.state-node { position: relative; min-width: 0; padding-right: 16px; }
.state-node > span, .exception > span { display: block; color: #858a85; font: 8px var(--mono); }
.state-node > i { position: relative; z-index: 1; display: block; width: 13px; height: 13px; margin: 28px 0 31px; border: 1px solid #a3a7a2; background: var(--ink); transition: background .3s, border-color .3s, transform .3s; }
.state-node h3, .exception h3 { margin: 0 0 8px; font: 700 clamp(14px, 1.5vw, 23px) var(--mono); letter-spacing: -.04em; }
.state-node small, .exception small { color: #858a85; font: 7px var(--mono); }
.state-node.is-active > i { transform: rotate(45deg); border-color: #7893f0; background: var(--blue); }
.state-node.is-active h3 { color: #7893f0; }
.state-node.is-active small { color: #d7ddf4; }
.exception { position: absolute; min-width: 130px; padding-top: 32px; border-top: 1px solid #555955; }
.exception::before { content: ""; position: absolute; top: -64px; left: 0; height: 64px; width: 1px; background: #555955; }
.exception > i { position: absolute; top: -5px; left: -3px; width: 7px; height: 7px; border: 1px solid #777c77; background: var(--ink); }
.rejected { bottom: 16px; left: 21%; }
.expired { bottom: 16px; right: 13%; }
.machine-caption { margin: 0; padding-top: 14px; border-top: 1px solid #555955; color: #858a85; font: 8px/1.5 var(--mono); }

.application-index { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); counter-reset: apps; }
.application-index li { position: relative; min-height: 82px; display: grid; grid-template-columns: 9% 1fr 28% 24px; gap: 18px; align-items: center; border-bottom: 1px solid var(--line); transition: padding .18s, background .18s; }
.application-index li::before { content: ""; position: absolute; left: 0; bottom: -1px; width: 0; height: 2px; background: var(--blue); transition: width .24s ease; }
.application-index li:hover { padding-left: 15px; background: var(--paper-light); }
.application-index li:hover::before { width: 100%; }
.application-index span, .application-index small { color: var(--muted); font: 9px var(--mono); letter-spacing: .05em; }
.application-index strong { font: 700 clamp(16px, 1.8vw, 27px) var(--sans); letter-spacing: -.045em; }
.application-index i { color: var(--blue); font-style: normal; opacity: 0; transition: opacity .18s, transform .18s; }
.application-index li:hover i { opacity: 1; transform: translate(2px, -2px); }

.counterparties { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(50px, 9vw, 150px); background: var(--blue); color: #fff; }
.counterparties .section-index { border-color: rgba(255,255,255,.25); }
.counterparties .section-index span { color: #fff; }
.counterparties .section-index small { color: rgba(255,255,255,.6); }
.counterparty-intro > p { color: #d4dcff; }
.counterparty-intro h2 { margin-top: 35px; }
.counterparty-copy > p { margin: 0 0 80px; font: 700 clamp(27px, 3.7vw, 58px)/1.02 var(--sans); letter-spacing: -.06em; }
.counterparty-copy ul { margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.65); list-style: none; }
.counterparty-copy li { display: grid; grid-template-columns: 1fr 35px 1fr; align-items: center; min-height: 61px; border-bottom: 1px solid rgba(255,255,255,.3); font: 10px var(--mono); }
.counterparty-copy li i { font-style: normal; color: #cdd6ff; }
.counterparty-copy li span:last-child { text-align: right; }
.counterparty-copy small { display: block; max-width: 490px; margin-top: 35px; color: #d4dcff; font: 9px/1.6 var(--mono); }

.principles { background: var(--paper-light); }
.principle-list { margin: 0; padding: 0; border-top: 1px solid var(--ink); list-style: none; }
.principle-list li { display: grid; grid-template-columns: 31% 1fr 20%; gap: 25px; align-items: center; min-height: 154px; border-bottom: 1px solid var(--line); }
.principle-list li > span { color: var(--blue); font: 10px var(--mono); }
.principle-list p { margin: 0; font: 700 clamp(29px, 4vw, 62px)/.91 var(--sans); letter-spacing: -.07em; }
.principle-list small { justify-self: end; color: var(--muted); font: 8px var(--mono); }

.word-ledger { border-top: 1px solid var(--ink); }
.word-ledger article { display: grid; grid-template-columns: 8% 42% 1fr; align-items: center; min-height: 172px; border-bottom: 1px solid var(--line); }
.word-ledger article > span { color: var(--muted); font: 9px var(--mono); }
.word-ledger h3 { margin: 0; font: 800 clamp(49px, 6.7vw, 106px)/.8 var(--sans); letter-spacing: -.085em; }
.word-ledger article:nth-child(2) h3 { color: var(--blue); }
.word-ledger p { max-width: 390px; margin: 0; color: var(--muted); font-size: 15px; }
.name-conclusion { display: grid; grid-template-columns: auto auto auto 1fr; gap: 0; align-items: end; margin-top: 90px; font: 700 clamp(24px, 4vw, 63px)/.9 var(--sans); letter-spacing: -.07em; }
.name-conclusion span, .name-conclusion b, .name-conclusion strong { padding: 11px 14px; border: 1px solid var(--ink); }
.name-conclusion b { margin-left: -1px; color: var(--blue); }
.name-conclusion strong { margin-left: -1px; background: var(--ink); color: var(--white); }
.name-conclusion p { justify-self: end; margin: 0 0 10px 30px; color: var(--muted); font: 14px/1.5 var(--body); letter-spacing: 0; }

.acquisition { position: relative; padding: clamp(100px, 10vw, 160px) var(--gutter) 0; background: var(--dark); color: var(--white); }
.registry-label { padding-bottom: 15px; border-bottom: 1px solid #71757a; color: #a1a5a9; }
.registry-meta { display: grid; grid-template-columns: 2fr 1fr 1.4fr .6fr; margin: 0; border-bottom: 1px solid #71757a; }
.registry-meta div { min-height: 88px; padding: 17px 20px 12px 0; border-right: 1px solid var(--dark-line); }
.registry-meta div:not(:first-child) { padding-left: 20px; }
.registry-meta div:last-child { border: 0; }
.registry-meta dt { margin-bottom: 10px; color: #7f8589; font: 8px var(--mono); }
.registry-meta dd { margin: 0; font: 10px var(--mono); }
.registry-meta dd i { background: #5f7cff; }
.acquisition-main { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(50px, 8vw, 130px); align-items: end; padding: clamp(95px, 12vw, 190px) 0 clamp(100px, 11vw, 175px); }
.acquisition-main > div > p { color: #7893f0; }
.acquisition h2 { margin: 28px 0 0; font: 700 clamp(60px, 9vw, 145px)/.75 var(--sans); letter-spacing: -.095em; overflow-wrap: anywhere; }
.acquisition-copy > p { margin: 0 0 24px; font: 700 clamp(34px, 4.5vw, 70px)/.91 var(--sans); letter-spacing: -.07em; }
.acquisition-copy > span { display: block; max-width: 500px; color: #aeb2b5; font-size: 15px; line-height: 1.65; }
.spec-button-light { width: 100%; margin-top: 38px; border-color: #5f7cff; background: #4d70ff; }
.spec-button-light:hover { border-color: var(--white); background: var(--white); color: var(--dark); }
.acquisition-copy small { display: block; margin-top: 13px; color: #7f8589; font: 8px var(--mono); }

footer {
  min-height: 172px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  align-items: start;
  padding: 31px var(--gutter);
  border-top: 1px solid var(--dark-line);
  background: var(--dark);
  color: var(--white);
  font: 9px/1.5 var(--mono);
}
footer > span { text-align: center; color: #8e9396; }
footer > a { text-align: right; color: #7893f0; }
footer small { grid-column: 1 / -1; padding-top: 28px; border-top: 1px solid var(--dark-line); color: #707579; }

.reveal-up { animation: reveal-up .65s both; }
.hero h1.reveal-up { animation-delay: .08s; }
.hero-statement.reveal-up { animation-delay: .16s; }
.hero-actions.reveal-up, .cover-meta.reveal-up { animation-delay: .24s; }

[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
[data-reveal].is-visible { opacity: 1; transform: none; }

@keyframes reveal-up { from { opacity: 0; transform: translateY(14px); } }
@keyframes draw-line { to { transform: none; } }

@media (max-width: 1180px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .hero { grid-template-columns: minmax(0, 7fr) minmax(320px, 5fr); }
  .hero h1 { font-size: clamp(69px, 10.5vw, 125px); }
  .section-heading { grid-template-columns: 1.5fr 6fr 2.5fr; }
  .machine { margin-left: 8%; }
  .name-conclusion { grid-template-columns: auto auto auto; }
  .name-conclusion p { grid-column: 1 / -1; justify-self: start; margin: 25px 0 0; }
}

@media (max-width: 900px) {
  :root { --gutter: 24px; }
  .site-header { position: relative; height: 68px; grid-template-columns: 1fr auto; padding: 0 var(--gutter); }
  .brand { gap: 10px; font-size: 10px; }
  .brand small { padding-left: 10px; font-size: 8px; }
  .header-cta { display: none; }
  .nav-toggle { display: flex; align-items: center; gap: 10px; border: 0; background: transparent; font: 9px var(--mono); }
  .nav-toggle i { width: 15px; height: 10px; border-top: 1px solid; border-bottom: 1px solid; }
  .site-header nav { position: absolute; top: 68px; right: 0; left: 0; height: auto; display: none; grid-template-columns: 1fr 1fr; background: var(--paper-light); border-bottom: 1px solid var(--ink); }
  .site-header.nav-open nav { display: grid; }
  .site-header nav a { min-height: 50px; border-bottom: 1px solid var(--line); }

  .hero { min-height: auto; grid-template-columns: 1fr; grid-template-rows: auto auto 54px; padding-left: 0; }
  .page-ruler { display: none; }
  .hero-cover { min-height: 780px; padding: 42px var(--gutter) 55px; }
  .hero h1 { font-size: clamp(68px, 15.1vw, 124px); margin: 72px 0 64px; }
  .hero-spec { padding: 55px var(--gutter) 34px; border-top: 1px solid var(--ink); border-left: 0; }
  .execution-strip { margin-top: 55px; padding-top: 0; }
  .hero-timeline { padding: 0 var(--gutter); }
  .hero-timeline span:nth-of-type(2), .hero-timeline span:nth-of-type(3) { display: none; }

  .section { padding: 100px var(--gutter) 100px calc(var(--gutter) + 28px); }
  .section-index { width: 24px; padding-top: 100px; }
  .section-heading { grid-template-columns: 1fr; gap: 24px; margin-bottom: 70px; }
  .section-heading > p { margin: 0; }
  .section-heading > span { max-width: 480px; padding: 0; }
  .definition-equation { grid-template-columns: 1fr; }
  .definition-equation article { min-height: 330px; padding: 24px 0; }
  .definition-equation article:first-child, .definition-equation article:last-child { padding-right: 0; padding-left: 0; }
  .definition-equation .operator { min-height: 90px; border: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .definition-result { grid-template-columns: 1fr; }
  .schema-layout { grid-template-columns: 1fr; }
  .state-heading { grid-template-columns: 1fr; }
  .machine { margin-left: 0; }
  .machine-track { grid-template-columns: 1fr; gap: 0; padding: 60px 0 190px 40px; }
  .machine-track::before { top: 75px; bottom: 200px; left: 45px; right: auto; width: 1px; height: auto; }
  .state-node { min-height: 105px; display: grid; grid-template-columns: 80px 1fr; grid-template-rows: 24px 30px 20px; padding-left: 34px; }
  .state-node > span { grid-column: 2; }
  .state-node > i { position: absolute; top: 0; left: 0; margin: 8px 0; }
  .state-node h3, .state-node small { grid-column: 2; }
  .exception { bottom: 25px; }
  .exception::before { top: -48px; height: 48px; }
  .rejected { left: 45px; }
  .expired { right: 5%; }
  .counterparties { grid-template-columns: 1fr; }
  .counterparty-copy > p { margin-bottom: 55px; }
  .principle-list li { grid-template-columns: 1fr; gap: 14px; min-height: 180px; padding: 26px 0; }
  .principle-list small { justify-self: start; }
  .word-ledger article { grid-template-columns: 50px 1fr; gap: 10px; padding: 30px 0; }
  .word-ledger p { grid-column: 2; }
  .name-conclusion { display: flex; align-items: stretch; flex-direction: column; font-size: clamp(37px, 8vw, 70px); }
  .name-conclusion span, .name-conclusion b, .name-conclusion strong { margin: -1px 0 0; }
  .registry-meta { grid-template-columns: 1fr 1fr; }
  .registry-meta div:nth-child(2) { border-right: 0; }
  .registry-meta div:nth-child(n+3) { border-top: 1px solid var(--dark-line); }
  .acquisition-main { grid-template-columns: 1fr; align-items: start; }
  .acquisition h2 { font-size: clamp(59px, 14vw, 110px); }
  footer { grid-template-columns: 1fr auto; }
  footer > span { display: none; }
}

@media (max-width: 540px) {
  .brand small { display: none; }
  .hero-cover { min-height: 710px; padding-top: 34px; }
  .hero h1 { margin: 66px 0 56px; font-size: clamp(54px, 16vw, 78px); line-height: .76; }
  .hero-statement { grid-template-columns: 1fr; gap: 24px; }
  .hero-statement > div { justify-self: start; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .spec-button { max-width: 100%; gap: 16px; }
  .section { padding: 82px 18px 82px 48px; }
  .section-index { width: 24px; padding-top: 82px; }
  .section-heading { margin-bottom: 54px; }
  .section-heading h2, .counterparty-intro h2 { font-size: clamp(44px, 13vw, 65px); }
  .definition-equation h3 { font-size: clamp(49px, 13.5vw, 70px); }
  .schema-tree li { grid-template-columns: 22px 1fr; }
  .schema-tree li small { display: none; }
  .schema-notes div { grid-template-columns: 1fr; gap: 5px; align-content: center; }
  .application-index li { grid-template-columns: 36px 1fr 14px; gap: 10px; padding: 16px 0; }
  .application-index li small { grid-column: 2; grid-row: 2; }
  .application-index li i { grid-column: 3; grid-row: 1 / 3; }
  .application-index strong { line-height: 1.15; }
  .counterparty-copy > p { font-size: 30px; }
  .word-ledger article { grid-template-columns: 34px 1fr; }
  .word-ledger h3 { font-size: clamp(46px, 13.8vw, 67px); overflow-wrap: anywhere; }
  .name-conclusion { font-size: 32px; }
  .registry-meta { grid-template-columns: 1fr; }
  .registry-meta div, .registry-meta div:not(:first-child) { min-height: 70px; padding: 14px 0; border-right: 0; border-top: 1px solid var(--dark-line); }
  .registry-meta div:first-child { border-top: 0; }
  .acquisition { padding: 82px 18px 0; }
  .acquisition h2 { font-size: clamp(48px, 14.6vw, 70px); }
  .acquisition-copy > p { font-size: 37px; }
  .spec-button-light { padding: 0 12px; font-size: 8px; }
  footer { padding: 27px 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
}