:root {
  --paper: #f3efe4;
  --paper-2: #ebe6d8;
  --ink: #0a0a09;
  --muted: #6a675f;
  --rule: rgba(10, 10, 9, 0.24);
  --acid: #d9ff00;
  --acid-deep: #bce300;
  --blue: #4a6cff;
  --coral: #ff5b45;
  --white: #fffdf7;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

::selection { background: var(--acid); color: var(--ink); }

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--acid);
  font: 700 0.75rem/1 var(--mono);
}

.skip-link:focus { top: 1rem; }

.article-site-fallback {
  min-height: 52px;
  padding: 0 2rem;
  border-bottom: 1px solid var(--ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font: 800 0.65rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-site-fallback a { color: inherit; text-underline-offset: 4px; }

.masthead {
  min-height: 58px;
  padding: 0 2rem;
  border-bottom: 1px solid var(--ink);
  background: var(--paper);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
  z-index: 10;
}

.wordmark {
  color: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font: 800 0.7rem/1 var(--mono);
  letter-spacing: 0.09em;
}

.wordmark-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--acid);
  border: 1px solid var(--ink);
  box-shadow: 0 0 0 3px rgba(217, 255, 0, 0.28);
}

.masthead-meta {
  display: flex;
  gap: 1.5rem;
  color: var(--muted);
  font: 600 0.62rem/1 var(--mono);
  letter-spacing: 0.08em;
}

.ticker {
  background: var(--acid);
  border-bottom: 1px solid var(--ink);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.ticker > div {
  padding: 1rem 1.5rem 0.9rem;
  min-width: 0;
  border-right: 1px solid var(--ink);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.25rem 0.75rem;
  align-items: end;
}

.ticker > div:last-child { border-right: 0; }
.ticker-label { grid-column: 1 / -1; font: 700 0.6rem/1 var(--mono); letter-spacing: 0.1em; }
.ticker strong { font-size: clamp(1.25rem, 2vw, 2rem); line-height: 0.9; letter-spacing: -0.05em; }
.ticker small { font: 600 0.58rem/1.2 var(--mono); text-align: right; text-transform: uppercase; }

.reading-progress {
  height: 3px;
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(0, 0, 0, 0.08);
}

.reading-progress span { display: block; width: 0; height: 100%; background: var(--blue); }

.page-grid {
  width: min(1640px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(190px, 250px) minmax(0, 870px) minmax(180px, 260px);
  justify-content: center;
  gap: clamp(1.75rem, 4vw, 5rem);
  padding: 4rem 2rem 8rem;
}

.rail-inner {
  position: sticky;
  top: 2rem;
  border-top: 3px solid var(--ink);
  padding-top: 1rem;
}

.rail-kicker,
.eyebrow {
  margin: 0 0 0.8rem;
  font: 800 0.62rem/1.2 var(--mono);
  letter-spacing: 0.12em;
}

.rail nav { display: grid; }
.rail nav a {
  padding: 0.52rem 0;
  color: var(--muted);
  border-bottom: 1px solid var(--rule);
  font: 600 0.64rem/1.25 var(--mono);
  text-decoration: none;
  text-transform: uppercase;
}
.rail nav a:hover,
.rail nav a:focus-visible { color: var(--ink); padding-left: 0.35rem; }

.rail-legend { display: grid; gap: 0.45rem; margin: 1.5rem 0; font: 600 0.6rem/1 var(--mono); }
.rail-legend span { display: flex; align-items: center; gap: 0.45rem; }
.dot { width: 8px; height: 8px; border-radius: 50%; border: 1px solid var(--ink); }
.dot.observed { background: var(--acid); }
.dot.derived { background: var(--blue); }
.dot.scenario { background: var(--coral); }

.rail-link {
  display: block;
  margin-top: 0.65rem;
  color: var(--ink);
  font: 800 0.6rem/1.35 var(--mono);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.snapshot-rail { padding-top: 52rem; }
.snapshot-card {
  position: sticky;
  top: 2rem;
  padding: 1.2rem;
  border: 1px solid var(--ink);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 6px 6px 0 var(--ink);
  margin-bottom: 1.2rem;
}
.snapshot-card + .snapshot-card { top: 19rem; }
.snapshot-card.lime { background: var(--acid); }
.snapshot-card strong { display: block; font-size: clamp(1.8rem, 3vw, 3rem); letter-spacing: -0.06em; line-height: 0.9; }
.snapshot-card span { display: block; margin-top: 0.55rem; font: 700 0.64rem/1.3 var(--mono); text-transform: uppercase; }
.snapshot-card p:last-child { margin: 0; font-size: 0.78rem; line-height: 1.5; }
.snapshot-card hr { margin: 1rem 0; }

.article { min-width: 0; }
.article > h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(3.7rem, 8.2vw, 8.7rem);
  line-height: 0.79;
  letter-spacing: -0.085em;
  text-transform: uppercase;
  text-wrap: balance;
}

.article > h1 + p {
  max-width: 740px;
  margin: 2rem 0 1.2rem;
  font-size: clamp(1.25rem, 2.1vw, 1.8rem);
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.article > h1 + p + p {
  font: 700 0.68rem/1.4 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.article > hr {
  margin: 2rem 0 2.4rem;
  border: 0;
  border-top: 1px solid var(--ink);
}

.article h2 {
  margin: 7.5rem 0 1.6rem;
  padding-top: 0.4rem;
  border-top: 3px solid var(--ink);
  font-size: clamp(2.5rem, 5vw, 5.3rem);
  line-height: 0.9;
  letter-spacing: -0.065em;
  text-transform: uppercase;
  text-wrap: balance;
  scroll-margin-top: 1rem;
}

.article h3 {
  margin: 3rem 0 0.8rem;
  font-size: clamp(1.45rem, 2.3vw, 2.1rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.article h4 { margin: 2rem 0 0.6rem; font: 800 0.75rem/1 var(--mono); letter-spacing: 0.08em; }

.article p,
.article li {
  font-size: clamp(1.03rem, 1.25vw, 1.2rem);
  line-height: 1.67;
}

.article p { margin: 0 0 1.35rem; }
.article ul,
.article ol { margin: 1rem 0 1.8rem; padding-left: 1.45rem; }
.article li { padding-left: 0.25rem; margin: 0.4rem 0; }

.article a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
.article a:hover { background: var(--acid); }
.article code {
  padding: 0.1em 0.27em;
  background: rgba(10, 10, 9, 0.07);
  border-radius: 3px;
  font: 0.83em/1.4 var(--mono);
  overflow-wrap: anywhere;
}

.article blockquote {
  margin: 2.5rem 0;
  padding: 1.4rem 1.5rem 1.35rem;
  border: 1px solid var(--ink);
  border-left: 12px solid var(--acid);
  background: var(--white);
  box-shadow: 7px 7px 0 var(--ink);
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.025em;
}

.hero-visual {
  margin: 2rem 0 5.5rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  overflow: hidden;
}
.hero-visual img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.hero-visual figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 0.9rem;
  color: var(--acid);
  font: 700 0.62rem/1.25 var(--mono);
  letter-spacing: 0.07em;
}

.table-wrap { overflow-x: auto; margin: 2rem 0 2.7rem; border: 1px solid var(--ink); }
.table-wrap:focus-visible { outline: 3px solid var(--lime); outline-offset: 3px; }
table { width: 100%; border-collapse: collapse; background: var(--white); }
th, td { padding: 0.9rem 1rem; border-bottom: 1px solid var(--rule); text-align: right; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { background: var(--ink); color: var(--acid); font: 800 0.62rem/1.2 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; }
td { font: 650 0.78rem/1.2 var(--mono); }
tr:last-child td { border-bottom: 0; }

.data-figure {
  margin: 4.5rem 0;
  border: 1px solid var(--ink);
  background: var(--white);
  box-shadow: 10px 10px 0 var(--ink);
}
.figure-head { padding: 1.1rem 1.25rem 1.25rem; border-bottom: 1px solid var(--ink); }
.figure-head span { display: block; margin-bottom: 0.5rem; color: var(--muted); font: 800 0.6rem/1 var(--mono); letter-spacing: 0.1em; }
.figure-head h3 { margin: 0; max-width: 680px; font-size: clamp(1.5rem, 2.8vw, 2.65rem); line-height: 1; }
.chart { min-height: 260px; padding: 1rem; overflow: hidden; }
.data-figure figcaption { padding: 0.85rem 1.25rem 0.95rem; border-top: 1px solid var(--ink); color: var(--muted); font: 600 0.65rem/1.45 var(--mono); }

.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart text { font-family: var(--mono); fill: var(--muted); font-size: 10px; }
.chart .axis { stroke: rgba(10, 10, 9, 0.22); stroke-width: 1; vector-effect: non-scaling-stroke; }
.chart .grid { stroke: rgba(10, 10, 9, 0.1); stroke-width: 1; stroke-dasharray: 3 5; vector-effect: non-scaling-stroke; }
.chart .series { fill: none; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.chart .area { opacity: 0.12; }
.chart .point { vector-effect: non-scaling-stroke; }
.chart .legend-label { fill: var(--ink); font-weight: 750; font-size: 10px; }
.chart-legend {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem 1rem;
  padding: 0.15rem 0.25rem 0.9rem;
  border-bottom: 1px solid var(--rule);
}
.chart-legend span {
  min-width: 0;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 0.55rem;
  align-items: center;
}
.chart-legend i { display: block; width: 28px; height: 4px; }
.chart-legend b {
  font: 750 0.6rem/1.25 var(--mono);
  overflow-wrap: anywhere;
}

.clock-stack { display: grid; gap: 0.8rem; }
.clock-row { display: grid; grid-template-columns: 120px 1fr 80px; gap: 0.8rem; align-items: center; }
.clock-label { font: 800 0.62rem/1.25 var(--mono); text-transform: uppercase; }
.clock-label small { display: block; margin-top: 0.25rem; color: var(--muted); font-weight: 600; }
.clock-value { text-align: right; font: 800 0.75rem/1 var(--mono); }
.clock-row svg { min-width: 0; }

.pnl-map { display: grid; grid-template-columns: 1fr auto 1fr; align-items: stretch; min-height: 310px; }
.pnl-side { padding: 1.2rem; display: grid; gap: 0.8rem; align-content: center; }
.pnl-side h4 { margin: 0 0 0.5rem; font: 900 0.76rem/1 var(--mono); }
.pnl-node { padding: 0.9rem; border: 1px solid var(--ink); background: var(--paper); }
.pnl-node strong { display: block; font: 800 0.7rem/1.2 var(--mono); }
.pnl-node span { display: block; margin-top: 0.35rem; color: var(--muted); font-size: 0.76rem; line-height: 1.35; }
.pnl-node.acid { background: var(--acid); }
.pnl-arrow { display: grid; place-items: center; padding: 1rem; border-left: 1px solid var(--ink); border-right: 1px solid var(--ink); font: 900 2rem/1 var(--mono); }

.flow { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--ink); }
.flow-step { min-width: 0; padding: 1.1rem 0.8rem; border-right: 1px solid var(--ink); background: var(--paper); }
.flow-step:last-child { border-right: 0; background: var(--acid); }
.flow-step small { display: block; min-height: 2.4em; font: 750 0.55rem/1.2 var(--mono); text-transform: uppercase; }
.flow-step strong { display: block; margin-top: 0.8rem; font-size: clamp(1rem, 2vw, 1.55rem); line-height: 1; letter-spacing: -0.04em; }
.flow-note { margin: 0.8rem 0 0; color: var(--muted); font: 600 0.58rem/1.4 var(--mono); }

.footer {
  min-height: 150px;
  padding: 2rem;
  border-top: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}
.footer div { display: grid; gap: 0.35rem; }
.footer strong { color: var(--acid); font-size: 1.5rem; }
.footer span,
.footer code,
.footer a { font: 600 0.62rem/1.4 var(--mono); }
.footer code { overflow-wrap: anywhere; }
.footer a { color: var(--paper); text-underline-offset: 4px; }

@media (max-width: 1180px) {
  .page-grid { grid-template-columns: 190px minmax(0, 820px); }
  .snapshot-rail { display: none; }
}

@media (max-width: 820px) {
  .masthead { padding: 0 1rem; }
  .masthead-meta span:last-child { display: none; }
  .ticker { grid-template-columns: repeat(2, 1fr); }
  .ticker > div:nth-child(2) { border-right: 0; }
  .ticker > div:nth-child(-n+2) { border-bottom: 1px solid var(--ink); }
  .page-grid { display: block; padding: 2.2rem 1rem 5rem; }
  .rail { display: none; }
  .article > h1 { font-size: clamp(3.4rem, 16vw, 6.8rem); }
  .article h2 { margin-top: 5rem; font-size: clamp(2.5rem, 12vw, 4.8rem); }
  .hero-visual { margin-left: -1rem; margin-right: -1rem; border-left: 0; border-right: 0; }
  .data-figure { margin: 3.5rem 0; box-shadow: 6px 6px 0 var(--ink); }
  .chart { padding: 0.65rem; min-height: 220px; }
  .chart-legend { grid-template-columns: 1fr; padding: 0.35rem 0.25rem 0.8rem; }
  .clock-row { grid-template-columns: 88px 1fr; }
  .clock-value { display: none; }
  .pnl-map { grid-template-columns: 1fr; }
  .pnl-arrow { min-height: 60px; border: 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); transform: rotate(90deg); }
  .flow { grid-template-columns: 1fr; }
  .flow-step { border-right: 0; border-bottom: 1px solid var(--ink); display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: end; }
  .flow-step:last-child { border-bottom: 0; }
  .flow-step small { min-height: 0; }
  .flow-step strong { margin: 0; text-align: right; }
  .footer { display: grid; align-items: start; }
}

@media (max-width: 480px) {
  .masthead-meta { display: none; }
  .ticker > div { padding: 0.8rem; }
  .ticker strong { font-size: 1.35rem; }
  .ticker small { font-size: 0.5rem; }
  .article p,
  .article li { font-size: 1rem; line-height: 1.62; }
  .hero-visual figcaption { display: grid; }
  th, td { padding: 0.75rem 0.7rem; }
}

@media print {
  .article-site-fallback, .masthead, .ticker, .reading-progress, .rail, .snapshot-rail, .footer { display: none; }
  .page-grid { display: block; padding: 0; }
  .article { max-width: none; }
  .article h2 { break-before: page; }
  .data-figure, blockquote { break-inside: avoid; box-shadow: none !important; }
  a { color: inherit !important; }
}

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