:root {
  color-scheme: dark;
  --ink: #0c1010;
  --ink-2: #151a19;
  --paper: #e9e4d8;
  --paper-muted: #aaa99f;
  --signal: #caff37;
  --rust: #ff704c;
  --line: rgba(233, 228, 216, 0.18);
  --display: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--display);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  background: var(--signal);
  color: var(--ink);
  transform: translateY(-180%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 76px;
  padding: 0 4vw;
  border-bottom: 1px solid var(--line);
  background: rgba(12, 16, 16, 0.92);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  width: max-content;
  font-weight: 900;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.brand img { border-radius: 6px; }

nav { display: flex; gap: 2rem; }

nav a, footer a {
  color: var(--paper-muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

nav a:hover, nav a:focus-visible, footer a:hover, footer a:focus-visible { color: var(--signal); }

.header-action {
  justify-self: end;
  padding: 0.72rem 1rem;
  border: 1px solid var(--signal);
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.74rem;
  text-decoration: none;
  text-transform: uppercase;
}

.header-action:hover, .header-action:focus-visible { background: var(--signal); color: var(--ink); }

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  gap: clamp(3rem, 7vw, 8rem);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: clamp(5rem, 10vw, 9rem) 6vw;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 8px;
  background: var(--signal);
}

.hero-grid, .closing-grid {
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(90deg, black, transparent 70%);
}

.hero-copy, .ledger, .closing-copy, .closing-action { position: relative; z-index: 1; }

.eyebrow, .section-label {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.73rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow b { padding: 0.18rem 0.36rem; background: var(--signal); color: var(--ink); }

h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 920px;
  margin-bottom: 1.5rem;
  font-size: clamp(4rem, 8.4vw, 9rem);
  font-weight: 900;
  letter-spacing: -0.072em;
  line-height: 0.84;
  text-transform: uppercase;
}

h1 em, h2 em { color: var(--signal); font-style: normal; }

.hero-intro {
  max-width: 690px;
  margin-bottom: 2rem;
  color: #cdc9bf;
  font-size: clamp(1.08rem, 1.7vw, 1.42rem);
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; align-items: stretch; }

.button {
  display: inline-flex;
  justify-content: space-between;
  align-items: center;
  gap: 2.5rem;
  min-height: 58px;
  padding: 0.9rem 1.2rem;
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

.button:hover, .button:focus-visible { transform: translateY(-3px); }
.button-primary { background: var(--signal); border-color: var(--signal); color: var(--ink); }
.button-primary:hover, .button-primary:focus-visible { background: var(--paper); border-color: var(--paper); }
.button-secondary { color: var(--paper); }
.button-secondary:hover, .button-secondary:focus-visible { border-color: var(--paper); }
.button strong { font-size: 0.96rem; }

.hero-note { max-width: 680px; margin: 1.2rem 0 0; color: var(--paper-muted); font-size: 0.86rem; }

.ledger {
  border: 1px solid rgba(202, 255, 55, 0.42);
  background: rgba(10, 14, 13, 0.9);
  box-shadow: 22px 22px 0 rgba(202, 255, 55, 0.08);
  overflow: hidden;
}

.ledger::after {
  content: "";
  position: absolute;
  inset: -20% 0 auto;
  height: 28%;
  background: linear-gradient(transparent, rgba(202, 255, 55, 0.13), transparent);
  animation: scan 5s linear infinite;
  pointer-events: none;
}

@keyframes scan { to { transform: translateY(470%); } }

.ledger-head, .ledger-foot {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.live-signal { color: var(--signal); }
.live-signal i { display: inline-block; width: 7px; height: 7px; margin-right: 0.35rem; border-radius: 50%; background: var(--signal); box-shadow: 0 0 12px var(--signal); }

.ledger-status { padding: clamp(2rem, 5vw, 4rem) 1rem 2rem; }
.ledger-status p, .ledger-status span { margin-bottom: 0.4rem; color: var(--paper-muted); font-family: var(--mono); font-size: 0.69rem; text-transform: uppercase; }
.ledger-status strong { display: block; color: var(--signal); font-family: var(--mono); font-size: clamp(2rem, 4.5vw, 4.6rem); letter-spacing: -0.08em; line-height: 1; }
.ledger-rows { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.ledger-rows li { display: grid; grid-template-columns: 38px 1fr auto; gap: 0.75rem; padding: 0.9rem 1rem; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 0.72rem; }
.ledger-rows span { color: var(--paper-muted); }
.ledger-rows b { font-weight: 500; text-transform: uppercase; }
.ledger-rows em { color: var(--signal); font-style: normal; }
.ledger-foot { border: 0; color: var(--paper-muted); font-size: 0.58rem; }

.signal-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
}

.signal-band span { padding: 1rem 1.2rem; border-right: 1px solid rgba(12, 16, 16, 0.25); font-family: var(--mono); font-size: 0.7rem; text-align: center; text-transform: uppercase; }
.signal-band span:last-child { border-right: 0; }

.section { padding: clamp(5rem, 10vw, 10rem) 6vw; }
.section-intro { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1.5rem 5vw; margin-bottom: 4rem; }
.section-intro .section-label { grid-column: 1 / -1; }
h2 { margin-bottom: 1.5rem; font-size: clamp(3rem, 6.2vw, 7rem); font-weight: 900; letter-spacing: -0.065em; line-height: 0.9; text-transform: uppercase; }
.section-intro > p:last-child { align-self: end; max-width: 560px; color: var(--paper-muted); font-size: 1.1rem; }

.workstream-list { border-top: 1px solid var(--line); }
.workstream { display: grid; grid-template-columns: 72px minmax(0, 1fr) minmax(210px, 0.42fr); gap: 2rem; padding: 2.4rem 0; border-bottom: 1px solid var(--line); transition: padding 180ms ease, background 180ms ease; }
.workstream:hover { padding-inline: 1rem; background: rgba(202, 255, 55, 0.035); }
.workstream-number, .workstream-tag, .workstream-output { font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; }
.workstream-number { color: var(--signal); }
.workstream-tag { margin-bottom: 0.35rem; color: var(--paper-muted); }
.workstream h3 { margin-bottom: 0.55rem; font-size: clamp(1.6rem, 3vw, 3.25rem); letter-spacing: -0.05em; line-height: 1; text-transform: uppercase; }
.workstream div > p:last-child { max-width: 680px; color: var(--paper-muted); }
.workstream-output { align-self: center; margin: 0; color: var(--signal); line-height: 1.75; }

.proof-portfolio { background: var(--ink-2); }
.proof-portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.proof-portfolio-card { display: flex; min-height: 310px; flex-direction: column; padding: 1.6rem; background: var(--ink-2); color: var(--paper); text-decoration: none; transition: background 180ms ease, transform 180ms ease; }
.proof-portfolio-card:hover, .proof-portfolio-card:focus-visible { background: rgba(202, 255, 55, 0.08); transform: translateY(-4px); }
.proof-portfolio-card > span, .proof-portfolio-card > b { color: var(--signal); font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; }
.proof-portfolio-card h3 { max-width: 15ch; margin: 3.5rem 0 0.7rem; font-size: clamp(1.55rem, 2.6vw, 2.55rem); letter-spacing: -0.05em; line-height: 0.96; text-transform: uppercase; }
.proof-portfolio-card p { max-width: 34ch; margin-bottom: 1.6rem; color: var(--paper-muted); }
.proof-portfolio-card b { margin-top: auto; font-weight: 500; }
.proof-portfolio-note { max-width: 760px; margin: 1.4rem 0 0; color: var(--paper-muted); font-size: 0.82rem; }
.proof-portfolio-note strong { color: var(--paper); }

.delivery { padding: clamp(5rem, 10vw, 9rem) 6vw; background: var(--paper); color: var(--ink); }
.delivery .section-label { color: #365200; }
.delivery-heading { max-width: 950px; }
.delivery-track { display: grid; grid-template-columns: repeat(4, 1fr); margin: 4rem 0 0; padding: 0; border-top: 3px solid var(--ink); list-style: none; }
.delivery-track li { position: relative; min-height: 270px; padding: 2rem 1.5rem 1.5rem 0; border-right: 1px solid rgba(12, 16, 16, 0.22); }
.delivery-track li::before { content: ""; position: absolute; top: -9px; left: 0; width: 15px; height: 15px; background: var(--ink); }
.delivery-track span { font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; }
.delivery-track h3 { margin: 4rem 0 0.7rem; font-size: 2.15rem; letter-spacing: -0.05em; text-transform: uppercase; }
.delivery-track p { max-width: 270px; color: #4d514c; }

.proof { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 7vw; align-items: start; }
.proof-statement { position: sticky; top: 2rem; }
.proof-register { border-top: 1px solid var(--line); }
.proof-register > div { display: grid; grid-template-columns: 42px 1fr; gap: 1rem; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.proof-register span { color: var(--signal); font-family: var(--mono); }
.proof-register p { margin: 0; color: var(--paper-muted); }
.proof-register b { display: block; margin-bottom: 0.35rem; color: var(--paper); font-size: 1.12rem; }

.boundaries { display: grid; grid-template-columns: 0.75fr 1.25fr; gap: 7vw; padding: clamp(5rem, 9vw, 8rem) 6vw; border-block: 1px solid var(--line); background: var(--ink-2); }
.boundaries-copy p:last-child { color: var(--paper-muted); }
.boundary-table { border: 1px solid var(--line); }
.boundary-row { display: grid; grid-template-columns: 1fr 1fr; }
.boundary-row span { min-height: 54px; padding: 0.95rem 1rem; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
.boundary-row span:first-child { border-right: 1px solid var(--line); }
.boundary-row:not(.boundary-head) span:first-child::before { content: "+ "; color: var(--signal); font-family: var(--mono); }
.boundary-row:not(.boundary-head) span:last-child::before { content: "– "; color: var(--rust); font-family: var(--mono); }
.boundary-head { background: var(--paper); color: var(--ink); font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; }

.closing { position: relative; display: grid; grid-template-columns: 1fr 0.75fr; gap: 8vw; align-items: end; min-height: 72vh; padding: clamp(6rem, 12vw, 11rem) 6vw; overflow: hidden; }
.closing h2 { max-width: 980px; }
.closing-copy > p:last-child { color: var(--paper-muted); font-size: 1.05rem; }
.closing-action { padding-bottom: 1.3rem; }
.closing-action .button { width: 100%; }
.closing-action > p { margin: 1rem 0 0; color: var(--paper-muted); font-size: 0.78rem; }

footer { display: grid; grid-template-columns: 1fr 1fr auto; gap: 2rem; align-items: center; padding: 2rem 4vw; border-top: 1px solid var(--line); }
footer p { margin: 0; color: var(--paper-muted); font-size: 0.86rem; }
footer div { display: flex; gap: 1.3rem; }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity 650ms ease, transform 650ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

:focus-visible { outline: 3px solid var(--rust); outline-offset: 4px; }

@media (max-width: 900px) {
  .site-header { grid-template-columns: 1fr auto; }
  nav { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 5rem; }
  .ledger { max-width: 680px; }
  .signal-band { grid-template-columns: repeat(2, 1fr); }
  .signal-band span:nth-child(2) { border-right: 0; }
  .section-intro, .proof, .boundaries, .closing { grid-template-columns: 1fr; }
  .proof-portfolio-grid { grid-template-columns: 1fr; }
  .proof-statement { position: static; }
  .delivery-track { grid-template-columns: repeat(2, 1fr); }
  footer { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .site-header { min-height: 64px; padding-inline: 1rem; }
  .header-action { padding: 0.58rem 0.7rem; font-size: 0.64rem; }
  .hero, .section, .delivery, .boundaries, .closing { padding-inline: 1.25rem; }
  h1 { font-size: clamp(3.35rem, 17vw, 5.3rem); }
  h2 { font-size: clamp(2.7rem, 13vw, 4.4rem); }
  .hero-actions, .button { width: 100%; }
  .button { gap: 1rem; }
  .ledger-foot { flex-direction: column; }
  .workstream { grid-template-columns: 34px 1fr; gap: 1rem; }
  .workstream-output { grid-column: 2; }
  .proof-portfolio-card { min-height: 250px; }
  .delivery-track { grid-template-columns: 1fr; }
  .delivery-track li { min-height: 220px; border-right: 0; }
  .boundary-row { grid-template-columns: 1fr; }
  .boundary-row span:first-child { border-right: 0; }
  .boundary-head span:last-child { border-top: 1px solid rgba(12, 16, 16, 0.18); }
  footer div { flex-wrap: wrap; }
}

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