:root {
  color-scheme: light;
  --canvas: #f2f0e9;
  --paper: #fffdf8;
  --ink: #102024;
  --ink-soft: #435156;
  --night: #0c1b22;
  --night-soft: #142832;
  --line: #c8cec8;
  --line-dark: #29404b;
  --cobalt: #2946d3;
  --cobalt-dark: #1f3195;
  --mint: #baf3da;
  --green: #08765a;
  --coral: #df654f;
  --utility: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --display: "Avenir Next Condensed", "Arial Narrow", "Helvetica Neue", sans-serif;
  --body: "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--body);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible { outline: 3px solid var(--coral); outline-offset: 4px; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  transform: translateY(-160%);
  background: var(--ink);
  color: var(--paper);
  padding: 10px 14px;
  z-index: 20;
}
.skip-link:focus { transform: none; }

.site-header {
  min-height: 76px;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 clamp(22px, 4.5vw, 72px);
  background: rgba(242, 240, 233, 0.94);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  width: max-content;
  color: var(--ink);
  font: 750 17px/1 var(--display);
  letter-spacing: 0.04em;
  text-decoration: none;
}
.wordmark-symbol {
  width: 31px;
  height: 31px;
  display: grid;
  place-items: center;
  background: var(--cobalt);
  color: white;
  border-radius: 50%;
  font: 800 18px/1 var(--display);
  position: relative;
}
.wordmark-symbol::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 3px;
  right: -2px;
  bottom: 4px;
  background: var(--cobalt);
  transform: rotate(42deg);
}
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a, .repo-link {
  font: 650 11px/1 var(--utility);
  letter-spacing: 0.04em;
  text-decoration: none;
}
.site-nav a { color: var(--ink-soft); }
.site-nav a:hover, .repo-link:hover { color: var(--cobalt); }
.header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 22px; }
.status-line {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--green);
  font: 650 10px/1 var(--utility);
}
.status-dot {
  width: 7px;
  height: 7px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(8, 118, 90, 0.1);
}
.repo-link { color: var(--ink); }

main { width: min(1480px, 100%); margin: 0 auto; padding: 0 clamp(22px, 4.5vw, 72px) 72px; }
.hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, 0.92fr);
  gap: clamp(48px, 7vw, 112px);
  align-items: center;
  padding: clamp(66px, 8vw, 118px) 0 clamp(58px, 7vw, 96px);
}
.hero-copy { max-width: 800px; }
.kicker { display: flex; gap: 10px; flex-wrap: wrap; margin: 0 0 28px; }
.kicker span, .section-index, .panel-label {
  font: 700 10px/1.4 var(--utility);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.kicker span { border: 1px solid var(--line); border-radius: 999px; padding: 8px 11px; }
.kicker span:first-child { color: var(--cobalt); border-color: rgba(41, 70, 211, 0.3); }
h1 {
  font: 760 clamp(60px, 7.2vw, 108px)/0.89 var(--display);
  letter-spacing: -0.055em;
  margin: 0;
  max-width: 870px;
}
h1 em { color: var(--cobalt); font-style: normal; }
.hero-lede {
  color: var(--ink-soft);
  font-size: clamp(17px, 1.6vw, 21px);
  line-height: 1.55;
  max-width: 670px;
  margin: 34px 0 0;
}
.hero-actions { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; margin-top: 36px; }
.replay-button {
  border: 0;
  border-radius: 3px;
  background: var(--cobalt);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  min-width: 290px;
  padding: 17px 18px;
  font: 750 12px/1 var(--utility);
  transition: background 180ms ease, transform 180ms ease;
}
.replay-button:hover { background: var(--cobalt-dark); transform: translateY(-2px); }
.replay-button:disabled { cursor: wait; opacity: 0.7; transform: none; }
.button-arrow { font-size: 20px; font-weight: 400; }
.action-note { color: #657277; font: 10px/1.4 var(--utility); }

.attention-card {
  background: var(--night);
  color: #eef5f2;
  padding: clamp(26px, 3vw, 42px);
  border-radius: 4px 36px 4px 4px;
  box-shadow: 24px 24px 0 var(--mint);
  position: relative;
  overflow: hidden;
}
.attention-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 82% 18%, rgba(186, 243, 218, 0.12), transparent 28%);
  pointer-events: none;
}
.attention-heading {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #9eb0b6;
  font: 700 9px/1 var(--utility);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}
.attention-comparison {
  display: grid;
  grid-template-columns: 1fr 92px 1fr;
  align-items: center;
  padding: 50px 0 40px;
}
.attention-before, .attention-after { display: flex; flex-direction: column; gap: 4px; }
.attention-before strong, .attention-after strong { font: 760 clamp(64px, 6vw, 92px)/0.85 var(--display); letter-spacing: -0.06em; }
.attention-after strong { color: var(--mint); }
.attention-before > span:last-child, .attention-after > span:last-child { color: #9eb0b6; font-size: 13px; }
.attention-label { color: #9eb0b6; font: 700 9px/1.4 var(--utility); letter-spacing: 0.08em; text-transform: uppercase; }
.attention-path { display: grid; grid-template-columns: repeat(6, 5px); gap: 5px; align-items: center; justify-content: center; position: relative; }
.attention-path span { width: 5px; height: 5px; border-radius: 50%; background: var(--coral); }
.attention-path i { position: absolute; right: -3px; color: var(--mint); font-style: normal; font-size: 24px; }
.budget-rule {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  padding: 22px 0;
}
.budget-rule > div:first-child { display: grid; grid-template-columns: auto auto; align-items: end; gap: 5px 12px; }
.budget-rule strong { color: var(--mint); font: 740 28px/1 var(--display); }
.budget-rule > div:first-child > span:last-child { grid-column: 1 / -1; color: #9eb0b6; font: 10px/1.4 var(--utility); }
.budget-slots { display: flex; gap: 8px; }
.budget-slots i { width: 16px; height: 36px; border-radius: 10px; background: var(--mint); }
.attention-card > p { color: #9eb0b6; font-size: 12px; line-height: 1.5; margin: 20px 0 0; }

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(110px, 1fr)) 2fr;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}
.proof-strip > div { padding: 24px 20px 24px 0; display: flex; align-items: baseline; gap: 9px; }
.proof-strip strong { font: 750 30px/1 var(--display); }
.proof-strip span { color: var(--ink-soft); font: 650 9px/1.4 var(--utility); text-transform: uppercase; }
.proof-strip p { align-self: stretch; display: flex; align-items: center; margin: 0; border-left: 1px solid var(--line); padding: 20px 0 20px 28px; color: #6c7678; font-size: 12px; line-height: 1.5; }

.replay-section, .principles-section { padding: 110px 0 0; }
.section-intro { display: grid; grid-template-columns: 0.72fr 1.8fr auto; gap: 40px; align-items: start; margin-bottom: 46px; }
.section-intro.compact { grid-template-columns: 0.72fr 1.8fr; }
.section-index { color: var(--cobalt); margin: 7px 0 0; }
h2 { font: 750 clamp(39px, 4.5vw, 70px)/0.95 var(--display); letter-spacing: -0.045em; margin: 0; }
.section-intro > div > p { color: var(--ink-soft); font-size: 15px; line-height: 1.55; max-width: 550px; margin: 20px 0 0; }
.run-state {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 13px;
  color: var(--ink-soft);
  font: 700 9px/1 var(--utility);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.run-state.live { color: var(--green); border-color: var(--green); }

.comparison { display: grid; grid-template-columns: 1fr 72px 1fr; border: 1px solid var(--line-dark); background: var(--night); }
.week { min-height: 420px; padding: clamp(28px, 4vw, 50px); position: relative; overflow: hidden; }
.baseline-week { background: var(--night); color: #eef5f2; }
.quorum-week { background: var(--paper); color: var(--ink); }
.week-heading, .panel-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; }
.week-heading span { color: #8fa2a9; font: 10px/1.4 var(--utility); text-transform: uppercase; }
.quorum-week .week-heading span { color: #647277; }
.week-label { margin: 0; font: 750 11px/1 var(--utility); letter-spacing: 0.1em; text-transform: uppercase; }
.metric-main { display: flex; align-items: end; gap: 20px; margin: 76px 0 48px; }
.metric-main > span { color: #95a5aa; font-size: 13px; line-height: 1.45; padding-bottom: 7px; }
.quorum-main > span { color: #5b696d; }
.signal-number { font: 760 clamp(90px, 12vw, 154px)/0.72 var(--display); letter-spacing: -0.07em; }
.signal-number.accent { color: var(--cobalt); }
.metric-row { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid currentColor; padding-top: 18px; }
.metric-row div { display: flex; flex-direction: column; gap: 7px; }
.metric-row b { font: 730 28px/1 var(--display); }
.metric-row span { color: #95a5aa; font: 9px/1 var(--utility); text-transform: uppercase; }
.quorum-week .metric-row span { color: #647277; }
.quiet-track {
  background: #10242d;
  border-left: 1px solid var(--line-dark);
  border-right: 1px solid var(--line-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 27px 0;
}
.quiet-track span { writing-mode: vertical-rl; font: 9px/1 var(--utility); color: #91a2a8; text-transform: uppercase; }
.track-line { width: 1px; flex: 1; background: #37515c; margin: 15px 0; position: relative; overflow: hidden; }
.track-line i { position: absolute; width: 3px; height: 0; left: -1px; top: 0; background: var(--mint); transition: height 3.6s cubic-bezier(.2,.8,.2,1); }
.replaying .track-line i { height: 100%; }
.message-field { position: absolute; inset: 86px 26px 96px; opacity: 0.2; pointer-events: none; }
.message-field i { position: absolute; width: 4px; height: 4px; background: var(--coral); border-radius: 50%; }
.replaying .message-field i { animation: disperse 1.6s ease forwards; }
.budget-meter { display: flex; align-items: center; gap: 12px; margin-top: 23px; font: 650 9px/1 var(--utility); text-transform: uppercase; color: #647277; }
.budget-meter > div { display: flex; gap: 4px; flex: 1; }
.budget-meter i { height: 6px; flex: 1; background: var(--cobalt); border-radius: 4px; }
.budget-meter i.blocked { background: #d8dcd7; }
.budget-meter b { color: var(--cobalt); }

.evidence-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; border: 1px solid var(--line); border-top: 0; background: var(--paper); }
.run-log, .receipts { padding: clamp(28px, 4vw, 48px); min-height: 360px; }
.receipts { border-left: 1px solid var(--line); background: #ebe9e2; }
.panel-label { color: var(--cobalt); margin: 0 0 8px; }
h3 { font: 740 clamp(24px, 2.6vw, 36px)/1 var(--display); letter-spacing: -0.025em; margin: 0; }
.panel-heading > span { color: #697679; font: 650 9px/1 var(--utility); text-transform: uppercase; }
.timeline { list-style: none; padding: 0; margin: 42px 0 0; counter-reset: event; }
.timeline li { border-top: 1px solid var(--line); padding: 14px 0; color: var(--ink-soft); font-size: 13px; opacity: 0; transform: translateY(7px); animation: enter .35s ease forwards; }
.timeline li::before { counter-increment: event; content: "0" counter(event); display: inline-block; width: 34px; color: var(--cobalt); font: 700 10px/1 var(--utility); }
.timeline .placeholder { opacity: 1; transform: none; animation: none; }
.receipt-list { margin-top: 40px; display: grid; gap: 11px; }
.receipt { background: var(--paper); color: var(--ink); border: 1px solid #d3d5cf; padding: 14px 15px; display: flex; justify-content: space-between; align-items: center; gap: 16px; font-size: 12px; line-height: 1.4; animation: enter .4s ease both; }
.receipt::before { content: "✓"; display: grid; place-items: center; flex: 0 0 22px; height: 22px; border-radius: 50%; background: var(--mint); color: var(--green); font-weight: 800; }
.receipt span { flex: 1; }
.receipt button { border: 1px solid #aab2ae; border-radius: 2px; background: transparent; color: #5b696d; padding: 7px 9px; font: 700 8px/1 var(--utility); text-transform: uppercase; }
.empty-receipt { color: #697679; font-size: 13px; line-height: 1.5; }

.principle-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); }
.principle-grid article { min-height: 250px; padding: 28px 26px 30px 0; border-bottom: 1px solid var(--line); }
.principle-grid article + article { border-left: 1px solid var(--line); padding-left: 26px; }
.principle-grid article > span { color: var(--cobalt); font: 700 10px/1 var(--utility); }
.principle-grid h3 { font-size: 25px; margin-top: 44px; }
.principle-grid p { color: var(--ink-soft); font-size: 13px; line-height: 1.55; margin: 17px 0 0; }
.principle-grid .featured-principle { background: var(--cobalt); color: white; padding-right: 26px; }
.featured-principle > span, .featured-principle p { color: #dce2ff; }

.architecture-section {
  margin-top: 110px;
  background: var(--night);
  color: #eef5f2;
  display: grid;
  grid-template-columns: 0.8fr 1.5fr;
  gap: 60px;
  padding: clamp(34px, 5vw, 70px);
}
.architecture-section .section-index { color: var(--mint); }
.architecture-section h2 { font-size: clamp(36px, 4vw, 56px); margin-top: 14px; }
.architecture-section > div:first-child > p:last-child { color: #9fb0b5; font-size: 13px; line-height: 1.55; }
.architecture-flow { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; align-content: center; font: 700 12px/1.4 var(--utility); }
.architecture-flow span { border: 1px solid #36515c; padding: 12px 13px; }
.architecture-flow i { color: var(--mint); font-style: normal; }
.architecture-meta { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-dark); padding-top: 22px; color: #9fb0b5; font: 650 9px/1.4 var(--utility); text-transform: uppercase; }

.provenance { display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center; padding: 22px 0; color: #657277; font: 10px/1.45 var(--utility); }
.provenance strong { color: var(--coral); text-transform: uppercase; }
.provenance code { color: #657277; }
.site-footer {
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  min-height: 116px;
  padding: 24px clamp(22px, 4.5vw, 72px);
  color: var(--ink-soft);
  font-size: 12px;
}
.site-footer p { margin: 0; }
.site-footer > a:last-child { justify-self: end; font: 650 10px/1.4 var(--utility); text-decoration: none; }

@keyframes enter { to { opacity: 1; transform: none; } }
@keyframes disperse { to { opacity: 0.04; transform: translateX(65px) scale(0.45); } }

@media (max-width: 1080px) {
  .site-nav { display: none; }
  .site-header { grid-template-columns: 1fr auto; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .attention-card { max-width: 700px; }
  .proof-strip { grid-template-columns: repeat(4, 1fr); }
  .proof-strip p { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
  .principle-grid { grid-template-columns: repeat(2, 1fr); }
  .architecture-section { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .site-header { min-height: 68px; }
  .status-line { display: none; }
  .hero { padding-top: 58px; gap: 48px; }
  h1 { font-size: clamp(52px, 15vw, 72px); }
  .attention-card { margin-right: 16px; box-shadow: 16px 16px 0 var(--mint); }
  .attention-comparison { grid-template-columns: 1fr 64px 1fr; }
  .proof-strip { grid-template-columns: repeat(2, 1fr); }
  .section-intro, .section-intro.compact { grid-template-columns: 1fr; gap: 18px; }
  .section-intro { position: relative; }
  .run-state { position: absolute; right: 0; top: 0; }
  .comparison { grid-template-columns: 1fr; }
  .quiet-track { min-height: 58px; flex-direction: row; padding: 0 18px; border: 0; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
  .quiet-track span { writing-mode: initial; }
  .track-line { height: 1px; width: auto; flex: 1; margin: 0 14px; }
  .track-line i { width: 0; height: 3px; top: -1px; transition: width 3.6s cubic-bezier(.2,.8,.2,1); }
  .replaying .track-line i { width: 100%; height: 3px; }
  .evidence-grid { grid-template-columns: 1fr; }
  .receipts { border-left: 0; border-top: 1px solid var(--line); }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid article + article { border-left: 0; padding-left: 0; }
  .principle-grid .featured-principle { margin-left: -22px; margin-right: -22px; padding-left: 22px; }
  .architecture-meta { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .provenance, .site-footer { grid-template-columns: 1fr; gap: 10px; }
  .site-footer > a:last-child { justify-self: start; }
}

@media (max-width: 430px) {
  .header-actions { gap: 10px; }
  .repo-link { font-size: 9px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .replay-button { min-width: 0; width: 100%; }
  .attention-comparison { grid-template-columns: 1fr; gap: 22px; padding: 40px 0 28px; }
  .attention-path { grid-template-columns: repeat(6, 5px); justify-content: start; }
  .attention-path i { right: auto; left: 62px; }
  .budget-rule { align-items: flex-end; }
  .proof-strip > div { padding-right: 8px; }
  .metric-main { margin-top: 62px; }
  .architecture-flow { align-items: flex-start; flex-direction: column; }
  .architecture-flow i { transform: rotate(90deg); margin-left: 19px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}