@import url("/chrome.css");

:root {
  --paper: #d6d0ad;
  --paper-hi: #e0dab8;
  --paper-lo: #c9c39d;
  --ink: #16160f;
  --ink-soft: #3a382c;
  --ink-faint: #6b6852;
  --mono: "SF Mono", "Menlo", "Consolas", "Liberation Mono", monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
}
* { box-sizing: border-box; margin: 0; }
html, body { min-height: 100%; }
body.site {
  font-family: var(--mono);
  background: var(--paper);
  color: var(--ink);
  display: flex; flex-direction: column; min-height: 100vh;
}
a { color: inherit; }
button, .btn {
  font: inherit; color: inherit; background: var(--paper);
  border: 1.5px solid var(--ink); padding: 8px 14px; cursor: pointer;
  text-transform: uppercase; letter-spacing: 0.08em; font-size: 12px;
  text-decoration: none; display: inline-block;
}
button:hover, .btn:hover { background: var(--ink); color: var(--paper); }
button.solid, .btn.solid { background: var(--ink); color: var(--paper); }
button.solid:hover, .btn.solid:hover { background: var(--paper); color: var(--ink); }
button:disabled { opacity: 0.35; cursor: not-allowed; }
button:disabled:hover { background: var(--paper); color: var(--ink); }

.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.hero { padding: 48px 0 28px; border-bottom: 1.5px solid var(--ink); }
.kicker {
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 14px;
}
h1 {
  font-size: clamp(42px, 7vw, 72px); letter-spacing: 0.14em;
  line-height: 0.95; font-weight: 700;
}
.hero h1 { letter-spacing: -0.045em; font-family: var(--serif); font-weight: 600; }
.lede {
  font-family: var(--serif); font-size: clamp(24px, 3vw, 32px); line-height: 1.25;
  max-width: 48rem; margin-top: 22px;
}
.hero .sub {
  font-family: var(--serif); font-size: 18px; line-height: 1.5; color: var(--ink-soft);
  max-width: 47rem; margin-top: 16px;
}
.sub { font-size: 13px; line-height: 1.55; color: var(--ink-soft); max-width: 42rem; margin-top: 14px; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-bottom: 1.5px solid var(--ink);
}
.stat-cell { padding: 16px 18px; border-right: 1.5px solid var(--ink); }
.stat-cell:last-child { border-right: none; }
.stat-cell .k { font-size: 9px; letter-spacing: 0.16em; color: var(--ink-faint); }
.stat-cell .v { font-size: 16px; font-weight: 700; margin-top: 4px; letter-spacing: 0.04em; }

.section { padding: 36px 0 8px; }
.section h2 {
  font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 16px;
}

.section-intro {
  max-width: 46rem;
  margin: -4px 0 18px;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.45;
}

.evidence-spectrum {
  border: 1.5px solid var(--ink);
  background: var(--paper-hi);
}

.spectrum-poles {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 16px 8px;
  color: var(--ink-faint);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.spectrum-line {
  height: 2px;
  margin: 0 16px 14px;
  background: var(--ink);
  position: relative;
}

.spectrum-line::before,
.spectrum-line::after {
  position: absolute;
  top: -4px;
  width: 10px;
  height: 10px;
  background: var(--ink);
  content: "";
}

.spectrum-line::before { left: 0; }
.spectrum-line::after { right: 0; }

.spectrum-sources {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--rule);
}

.spectrum-source {
  min-width: 0;
  padding: 16px;
  border-right: 1px solid var(--rule);
}

.spectrum-source:last-child { border-right: 0; }
.spectrum-source strong { display: block; font-size: 12px; letter-spacing: 0.05em; text-transform: uppercase; }
.spectrum-source span { display: block; margin-top: 7px; color: var(--ink-soft); font-family: var(--serif); font-size: 15px; line-height: 1.4; }

.evidence-priors {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.evidence-prior {
  padding: 19px 20px 21px;
  border: 1.5px solid var(--ink);
}

.evidence-prior .kicker { margin-bottom: 8px; }
.evidence-prior h3 { font-size: 15px; letter-spacing: 0.08em; text-transform: uppercase; }
.evidence-prior p { max-width: 34rem; margin-top: 9px; color: var(--ink-soft); font-family: var(--serif); font-size: 17px; line-height: 1.48; }

.direct-route {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 24px;
  align-items: baseline;
  margin-top: 12px;
  padding: 17px 20px;
  border: 1.5px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.direct-route strong { font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }
.direct-route p { max-width: 46rem; font-family: var(--serif); font-size: 17px; line-height: 1.45; }

.river {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px;
}
.river a, .river .step {
  border: 1.5px solid var(--ink); background: var(--paper-hi);
  padding: 15px 15px 17px; text-decoration: none; min-height: 132px;
}
.river a:hover { background: var(--ink); color: var(--paper); }
.river .n { font-size: 9px; letter-spacing: 0.14em; color: var(--ink-faint); }
.river a:hover .n { color: var(--paper-lo); }
.river .t { font-size: 14px; font-weight: 700; letter-spacing: 0.03em;
  text-transform: uppercase; margin-top: 6px; }
.river .d { font-family: var(--serif); font-size: 15px; line-height: 1.4; margin-top: 8px; color: var(--ink-soft); }
.river a:hover .d { color: var(--paper-lo); }
.river .tip { background: var(--ink); color: var(--paper); }
.river .tip .n, .river .tip .d { color: var(--paper-lo); }

.thirds {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
}
.card {
  border: 1.5px solid var(--ink); padding: 16px 16px 18px; background: var(--paper-hi);
}
.card h3 { font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; }
.card p { font-family: var(--serif); font-size: 16px; line-height: 1.4; margin-top: 8px; }
.card .meta { font-size: 11px; color: var(--ink-soft); margin-top: 10px; line-height: 1.45; }

.lab-cta {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; align-items: stretch;
  padding-bottom: 40px;
}
.lab-frame {
  border: 1.5px solid var(--ink); min-height: 280px; background: var(--paper-hi);
  position: relative; overflow: hidden;
  display: flex; align-items: flex-end; padding: 18px;
  text-decoration: none;
}
.iso-deco {
  position: absolute;
  top: 14px;
  left: 18px;
  width: calc(100% - 36px);
  height: calc(100% - 102px);
  pointer-events: none;
}
.lab-frame strong { position: relative; letter-spacing: 0.12em; text-transform: uppercase; }
.lab-frame span { position: relative; display: block; font-size: 12px; margin-top: 6px; color: var(--ink-soft); }

.note {
  font-size: 12px; line-height: 1.5; color: var(--ink-soft);
  border-top: 1.5px solid var(--ink); padding: 18px 0 32px;
}

footer.site-foot {
  margin-top: auto; border-top: 1.5px solid var(--ink);
  padding: 14px 0 18px; font-size: 11px; color: var(--ink-faint);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}

/* prism doodle */
.prism { fill: var(--paper); stroke: var(--ink); stroke-width: 1.6; }
.prism.hi { fill: var(--paper-hi); }
.prism.ink { fill: var(--ink); }

@media (max-width: 860px) {
  .stats, .river, .thirds, .lab-cta { grid-template-columns: 1fr 1fr; }
  .spectrum-sources { grid-template-columns: 1fr 1fr; }
  .spectrum-source:nth-child(2) { border-right: 0; }
  .spectrum-source:nth-child(-n + 2) { border-bottom: 1px solid var(--rule); }
  .lab-cta { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .stats, .river, .thirds, .evidence-priors { grid-template-columns: 1fr; }
  .spectrum-sources { grid-template-columns: 1fr; }
  .spectrum-source { border-right: 0; border-bottom: 1px solid var(--rule); }
  .spectrum-source:last-child { border-bottom: 0; }
  .direct-route { grid-template-columns: 1fr; gap: 8px; }
  .stat-cell { border-right: none; border-bottom: 1.5px solid var(--ink); }
  h1 { letter-spacing: 0.08em; }
  .wrap { width: calc(100% - 28px); }
}

/* demo */
.demo-frame { display: flex; flex: 1; min-height: 0; }
.demo-rail {
  width: 280px; border-right: 1.5px solid var(--ink); overflow-y: auto;
  flex-shrink: 0; padding: 12px 10px;
}
.demo-main { flex: 1; overflow-y: auto; padding: 28px 32px 48px; }
.demo-side {
  width: min(380px, 38vw); border-left: 1.5px solid var(--ink);
  overflow-y: auto; padding: 18px 16px; background: var(--paper-hi);
}
.beat {
  display: block; width: 100%; text-align: left; border: 1.5px solid var(--ink);
  background: var(--paper-hi); padding: 8px 10px; margin: 0 0 6px;
  text-transform: none; letter-spacing: 0.02em; font-size: 12px;
}
.beat .st { font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-faint); }
.beat.on { background: var(--ink); color: var(--paper); }
.beat.on .st { color: var(--paper-lo); }
.demo-main h1 { font-size: 28px; letter-spacing: 0.08em; }
.demo-main .body { font-family: var(--serif); font-size: 20px; line-height: 1.4; margin: 14px 0 18px; max-width: 38rem; }
.kv { border-top: 1.5px solid var(--ink); padding-top: 10px; margin-top: 14px; }
.kv div { display: flex; justify-content: space-between; gap: 12px;
  border-bottom: 1px solid var(--ink); padding: 6px 0; font-size: 12px; }
.kv dt { color: var(--ink-faint); letter-spacing: 0.1em; text-transform: uppercase; font-size: 9px; }
pre.pkt {
  font-size: 11px; white-space: pre-wrap; line-height: 1.45;
  border: 1.5px solid var(--ink); padding: 12px; background: var(--paper);
}
.warn {
  font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  border: 1.5px solid var(--ink); padding: 8px 10px; margin-bottom: 14px;
}
@media (max-width: 900px) {
  .demo-frame { flex-direction: column; }
  .demo-rail, .demo-side { width: 100%; border: none; border-bottom: 1.5px solid var(--ink); max-height: 28vh; }
}

/* lens */
.lens-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 18px; padding: 28px 0 48px; }
textarea#src {
  width: 100%; min-height: 320px; font: 14px/1.45 var(--serif);
  background: var(--paper-hi); color: var(--ink); border: 1.5px solid var(--ink);
  padding: 14px; resize: vertical;
}
.meters .row { margin-bottom: 12px; }
.meters label { font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-faint); }
.bar { height: 10px; border: 1.5px solid var(--ink); background: var(--paper-hi); margin-top: 4px; }
.bar > i { display: block; height: 100%; background: var(--ink); }
.meters .val { font-size: 18px; font-weight: 700; }
.hits { font-size: 12px; line-height: 1.5; margin-top: 10px; }
@media (max-width: 800px) { .lens-grid { grid-template-columns: 1fr; } }

.prose { font-family: var(--serif); font-size: 19px; line-height: 1.45; max-width: 42rem; }
.prose p { margin: 0 0 14px; }
.prose h2 { font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-faint); margin: 28px 0 10px; }
.prose ul { padding-left: 1.2em; margin: 0 0 14px; }
.prose code { font-family: var(--mono); font-size: 0.82em; }