:root {
  color-scheme: dark;
  --ink: #0a0c0b;
  --surface: #101310;
  --surface-2: #151a16;
  --text: #f1f4ef;
  --muted: #929b92;
  --line: #2a302b;
  --signal: #b7ff5a;
  --signal-dim: #77a83c;
  --danger: #ff7b67;
  --mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", monospace;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--ink); }

body {
  margin: 0;
  min-width: 320px;
  background: var(--ink);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
}

button, textarea, select, input { font: inherit; }
button, select, input[type="checkbox"] { cursor: pointer; }
a { color: inherit; }

.topbar {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(10, 12, 11, 0.96);
  backdrop-filter: blur(12px);
}

.brand-lockup, .topbar-actions, .route-identity, .route-config-heading, .evidence-heading {
  display: flex;
  align-items: center;
}

.brand-lockup { gap: 12px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--signal-dim);
  color: var(--signal);
  font: 700 13px/1 var(--mono);
}
.brand, .subbrand { margin: 0; }
.brand { font-weight: 680; letter-spacing: -0.02em; }
.subbrand { color: var(--muted); font-size: 12px; }
.topbar-actions { gap: 16px; flex-wrap: wrap; justify-content: flex-end; }

.connection {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.connection::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
}
.connection[data-state="live"]::before,
.connection[data-state="verified"]::before { background: var(--signal); box-shadow: 0 0 0 4px rgba(183, 255, 90, 0.08); }
.connection[data-state="working"]::before { background: var(--signal); animation: pulse 1s infinite; }
.connection[data-state="error"]::before { background: var(--danger); }

.text-button {
  border: 0;
  padding: 4px 0;
  color: var(--text);
  background: transparent;
  font: 600 12px/1 var(--mono);
  border-bottom: 1px solid var(--line);
}
.text-button:hover:not(:disabled) { border-color: var(--signal); color: var(--signal); }
.text-button:disabled { color: #555e56; cursor: not-allowed; }

.workspace {
  display: grid;
  grid-template-columns: minmax(330px, 410px) minmax(0, 1fr);
  min-height: calc(100vh - 78px);
}

.controls-pane {
  padding: 34px 28px 48px;
  border-right: 1px solid var(--line);
  background: var(--surface);
}

.controls-intro { margin-bottom: 32px; }
.kicker {
  margin: 0 0 9px;
  color: var(--signal);
  font: 700 10px/1.2 var(--mono);
  letter-spacing: 0.14em;
}
.controls-intro h1 {
  max-width: 340px;
  margin: 0 0 12px;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}
.controls-intro > p:last-child { max-width: 340px; margin: 0; color: var(--muted); }

.public-brief { border-top: 1px solid var(--line); padding-top: 22px; }
.public-lede { margin: 0 0 20px; color: #cbd2cb; font-size: 14px; }
.public-actions { display: grid; gap: 8px; margin-bottom: 25px; }
.public-actions a {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  border: 1px solid var(--signal-dim);
  color: var(--signal);
  font: 700 11px/1 var(--mono);
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}
.public-actions a:hover { background: var(--signal); color: var(--ink); transform: translateX(3px); }
.public-facts { margin: 0; }
.public-facts > div { padding: 12px 0; border-top: 1px solid var(--line); }
.public-facts dt { color: var(--muted); font: 700 9px/1.2 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; }
.public-facts dd { margin: 5px 0 0; color: var(--text); font-size: 12px; }
.public-note { margin: 20px 0 0; color: var(--muted); font-size: 11px; }

body[data-mode="public"] .controls-pane form,
body[data-mode="public"] .local-safety { display: none; }
body[data-mode="public"] .public-brief { display: block; animation: rise 360ms both; }
body[data-mode="public"] .controls-pane { position: sticky; top: 78px; align-self: start; min-height: calc(100vh - 78px); }

fieldset {
  min-width: 0;
  margin: 0;
  padding: 22px 0;
  border: 0;
  border-top: 1px solid var(--line);
}
legend {
  float: left;
  width: 100%;
  margin-bottom: 18px;
  color: var(--muted);
  font: 700 10px/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
legend + * { clear: both; }

label { display: block; margin-bottom: 15px; color: #c4cbc4; font-size: 12px; font-weight: 650; }
textarea, select {
  width: 100%;
  margin-top: 7px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--ink);
  color: var(--text);
  outline: none;
}
textarea { padding: 12px; resize: vertical; line-height: 1.45; }
select { min-height: 42px; padding: 0 38px 0 11px; font: 11px/1.2 var(--mono); text-overflow: ellipsis; }
textarea:focus, select:focus { border-color: var(--signal-dim); box-shadow: inset 3px 0 0 var(--signal); }

.route-config { padding: 14px 0 3px; border-top: 1px solid #1d221e; }
.route-config:first-of-type { border-top: 0; padding-top: 0; }
.route-config-heading { gap: 9px; margin-bottom: 13px; font-weight: 700; }
.route-letter {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  background: var(--signal);
  color: var(--ink);
  font: 800 12px/1 var(--mono);
}
.route-letter.large { width: 40px; height: 40px; font-size: 16px; flex: 0 0 auto; }

.check-row { display: flex; align-items: flex-start; gap: 11px; margin: 0 0 14px; }
.check-row input { margin: 3px 0 0; accent-color: var(--signal); }
.check-row span { display: grid; gap: 2px; }
.check-row strong { color: var(--text); font-size: 12px; }
.check-row small { color: var(--muted); font-weight: 400; line-height: 1.35; }

.primary-action {
  width: 100%;
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--signal);
  padding: 0 16px;
  background: var(--signal);
  color: var(--ink);
  font-weight: 800;
}
.primary-action:hover:not(:disabled) { background: #cbff87; }
.primary-action:disabled { border-color: var(--line); background: #202620; color: #667067; cursor: not-allowed; }
.primary-action.running { animation: signal 1.2s infinite alternate; }
.run-status { min-height: 38px; margin: 10px 0 0; color: var(--muted); font: 11px/1.45 var(--mono); }
.local-safety { margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--line); }
.local-safety p:last-child { margin: 0; color: var(--muted); font-size: 12px; }

.results-pane { min-width: 0; padding: 36px clamp(22px, 4vw, 60px) 50px; }
.results-heading { display: flex; justify-content: space-between; gap: 30px; align-items: flex-end; margin-bottom: 28px; }
.results-heading h2 { margin: 0; font-size: clamp(25px, 3vw, 40px); letter-spacing: -0.04em; }
.disclosure { max-width: 480px; margin: 0; color: var(--muted); font-size: 12px; text-align: right; }

.summary-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.summary-strip > div { padding: 16px 14px; border-left: 1px solid var(--line); }
.summary-strip > div:first-child { border-left: 0; padding-left: 0; }
.summary-strip span, .route-totals span, .stage-metrics span, .inline-metrics span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font: 600 9px/1.2 var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.summary-strip strong { font: 700 15px/1.2 var(--mono); }

.scope-audit {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(280px, 1.2fr);
  gap: 30px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.scope-audit span { display: block; margin-bottom: 5px; color: var(--signal); font: 700 9px/1.2 var(--mono); letter-spacing: 0.1em; }
.scope-audit strong { font-size: 13px; }
.scope-audit p { margin: 0; color: var(--muted); font-size: 11px; }

.route-comparison { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 24px; }
.route-lane { min-width: 0; border-top: 3px solid var(--line); background: var(--surface); animation: rise 420ms both; }
.route-lane[data-route="A"] { border-color: var(--signal); }
.route-lane[data-route="B"] { border-color: #e8ede6; animation-delay: 80ms; }
.route-lane > header { padding: 18px; border-bottom: 1px solid var(--line); }
.route-identity { align-items: flex-start; gap: 12px; }
.route-identity h3 { margin: 0 0 4px; font-size: 18px; letter-spacing: -0.02em; }
.route-identity p { margin: 0; color: var(--muted); font: 10px/1.4 var(--mono); overflow-wrap: anywhere; }
.route-totals { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 17px; }
.route-totals strong { font: 650 11px/1.2 var(--mono); }

.stage-row { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 10px; padding: 17px 18px; border-bottom: 1px solid var(--line); animation: rise 360ms var(--delay) both; }
.stage-index { color: var(--signal); font: 700 10px/1.4 var(--mono); }
.stage-heading { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.stage-heading strong { font-size: 12px; text-transform: uppercase; }
.stage-heading code, .evidence-heading code { color: var(--muted); font: 9px/1.3 var(--mono); overflow-wrap: anywhere; text-align: right; }
.stage-row p { margin: 8px 0 0; color: #b2bab2; font-size: 11px; }
.stage-metrics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 13px; }
.stage-metrics strong, .inline-metrics strong { font: 600 10px/1.35 var(--mono); overflow-wrap: anywhere; }
.stage-row .attempts { color: #747d75; font: 9px/1.35 var(--mono); }

.route-answer { padding: 18px; }
.route-answer span { color: var(--signal); font: 700 9px/1 var(--mono); letter-spacing: 0.12em; }
.route-answer p { margin: 10px 0 0; font-size: 13px; line-height: 1.55; }
.reliability { margin: 0 18px 18px; padding: 12px; border-left: 2px solid var(--signal); background: #121812; }
.reliability.failed { border-color: var(--danger); }
.reliability strong { font: 700 10px/1.2 var(--mono); text-transform: uppercase; }
.reliability p { margin: 5px 0 0; color: var(--muted); font-size: 11px; }

.empty-result { grid-column: 1 / -1; min-height: 420px; display: grid; place-items: center; align-content: center; gap: 20px; border: 1px solid var(--line); color: var(--muted); }
.empty-index { color: var(--line); font: 800 clamp(90px, 15vw, 190px)/0.8 var(--mono); }
.empty-result p { max-width: 560px; margin: 0; padding: 0 24px; text-align: center; }

.evidence-section { margin-top: 20px; padding: 22px 0; border-top: 1px solid var(--line); }
.evidence-heading { justify-content: space-between; gap: 20px; }
.evidence-heading h3, .boundary h3 { margin: 0; font-size: 16px; }
.score-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 16px; }
.score-grid > div { padding: 16px; background: var(--surface); }
.score-grid > div > strong { display: block; margin-bottom: 10px; color: var(--signal); font: 700 11px/1 var(--mono); }
.score-grid > div > div { display: flex; justify-content: space-between; padding: 6px 0; border-top: 1px solid var(--line); font-size: 11px; }
.score-grid p, .evidence-section > p { color: var(--muted); font-size: 12px; }
.evidence-verdict { color: var(--text) !important; font-weight: 650; }
.caveat { font-style: italic; }
.inline-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 16px; }
.boundary { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.boundary p { margin-bottom: 0; }
.open-stack-links { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 14px; }
.open-stack-links a { color: var(--signal); font: 700 10px/1.4 var(--mono); }
.open-stack-links a:hover { color: var(--text); }

.sources { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; margin-top: 36px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font: 10px/1.4 var(--mono); }
.sources span { color: var(--text); text-transform: uppercase; letter-spacing: 0.1em; }
.sources a:hover { color: var(--signal); }

/* Reviewer-first public experience */
.reviewer-hero,
.proof-rail { display: none; }

body[data-mode="public"] .reviewer-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(460px, 0.92fr);
  gap: clamp(42px, 5vw, 76px);
  max-width: 1440px;
  margin: 0 auto;
  padding: clamp(58px, 7vw, 96px) clamp(24px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 84% 22%, rgba(183, 255, 90, 0.09), transparent 29rem),
    linear-gradient(135deg, var(--ink), #0d120e 70%);
  animation: rise 420ms both;
}

.hero-narrative { align-self: center; }
.hero-narrative h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(48px, 6vw, 86px);
  line-height: 0.93;
  letter-spacing: -0.065em;
}
.hero-lede {
  max-width: 660px;
  margin: 26px 0 0;
  color: #b8c0b8;
  font-size: clamp(16px, 1.45vw, 20px);
  line-height: 1.55;
}
.hero-proofline {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 18px;
  margin-top: 28px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: #d8ded7;
  font: 700 10px/1.2 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero-proofline span + span::before {
  content: "·";
  margin-right: 18px;
  color: var(--signal-dim);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.hero-actions a {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 0 16px;
  font: 750 11px/1 var(--mono);
  text-decoration: none;
  text-transform: uppercase;
}
.hero-actions .primary-link { background: var(--signal); color: var(--ink); border: 1px solid var(--signal); }
.hero-actions .secondary-link { color: var(--signal); border: 1px solid var(--signal-dim); }
.hero-actions a:hover { transform: translateY(-2px); }
.hero-caveat { margin: 16px 0 0; color: var(--muted); font-size: 11px; }

.hero-result {
  align-self: center;
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  background: rgba(7, 10, 8, 0.74);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.24);
}
.panel-label { margin: 0 0 14px; color: var(--muted); font: 700 9px/1 var(--mono); letter-spacing: 0.1em; }
.verdict-band {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  min-height: 72px;
  padding: 16px;
  background: var(--signal);
  color: var(--ink);
}
.verdict-band strong { font-size: clamp(15px, 1.5vw, 19px); }
.verdict-band > span { font: 700 9px/1.2 var(--mono); text-transform: uppercase; }
.hero-routes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 10px; }
.hero-routes article { min-width: 0; min-height: 230px; padding: 16px; border: 1px solid var(--line); background: var(--surface); }
.hero-routes article.preferred { border-color: var(--signal-dim); background: var(--surface-2); }
.hero-routes header { display: flex; align-items: center; gap: 10px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.hero-routes header strong { display: grid; place-items: center; width: 28px; height: 28px; background: var(--signal); color: var(--ink); font: 800 11px/1 var(--mono); }
.hero-routes header span { font: 700 10px/1 var(--mono); text-transform: uppercase; }
.hero-routes dl { margin: 16px 0 0; }
.hero-routes dl > div { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; }
.hero-routes dt { color: var(--muted); font: 9px/1.2 var(--mono); text-transform: uppercase; }
.hero-routes dd { margin: 0; font: 650 10px/1.2 var(--mono); }
.hero-routes article > p { margin: 18px 0 0; color: var(--signal); font: 700 9px/1 var(--mono); text-transform: uppercase; }

body[data-mode="public"] .proof-rail {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: 1440px;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}
.proof-rail > div { min-width: 0; padding: 25px clamp(20px, 3vw, 40px); border-left: 1px solid var(--line); }
.proof-rail > div:first-child { border-left: 0; }
.proof-rail span { display: block; color: var(--muted); font: 700 9px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; }
.proof-rail strong { display: block; margin-top: 8px; font: 750 clamp(18px, 2vw, 27px)/1 var(--mono); }
.proof-rail small { display: block; margin-top: 7px; color: #778078; font-size: 10px; }

body[data-mode="public"] .workspace {
  max-width: 1440px;
  margin: 0 auto;
  grid-template-columns: 300px minmax(0, 1fr);
}
body[data-mode="public"] .controls-pane {
  top: 76px;
  min-height: 0;
  padding: 42px 28px;
  background: #0d100e;
}
body[data-mode="public"] .controls-intro h1 { font-size: 30px; line-height: 1; }
body[data-mode="public"] .results-pane { padding-top: 44px; }
body[data-mode="public"] .route-comparison { gap: 12px; }
body[data-mode="public"] .route-lane { border: 1px solid var(--line); border-top-width: 3px; }

.stage-row {
  padding: 0;
  display: block;
}
.stage-row > summary {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}
.stage-row > summary::-webkit-details-marker { display: none; }
.stage-row > summary::after {
  content: "+";
  grid-column: 2;
  justify-self: end;
  margin-top: -20px;
  color: var(--signal);
  font: 700 14px/1 var(--mono);
}
.stage-row[open] > summary::after { content: "−"; }
.stage-row .stage-detail { padding: 0 18px 18px 62px; }
.stage-row:not([open]) .stage-detail { display: none; }
.stage-heading { padding-right: 20px; }

@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 50% { opacity: 0.35; } }
@keyframes signal { from { background: var(--signal); } to { background: #d4ffa1; } }

@media (max-width: 1050px) {
  body[data-mode="public"] .reviewer-hero { grid-template-columns: 1fr; }
  body[data-mode="public"] .workspace { grid-template-columns: 260px minmax(0, 1fr); }
  body[data-mode="public"] .proof-rail { grid-template-columns: repeat(2, 1fr); }
  .proof-rail > div:nth-child(3) { border-left: 0; }
  .proof-rail > div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .workspace { grid-template-columns: 330px minmax(0, 1fr); }
  .route-comparison { grid-template-columns: 1fr; }
  .summary-strip { grid-template-columns: repeat(2, 1fr); }
  .summary-strip > div:nth-child(3) { border-left: 0; }
  .summary-strip > div:nth-child(n+3) { border-top: 1px solid var(--line); }
}

@media (max-width: 760px) {
  .topbar { position: static; align-items: flex-start; }
  .subbrand { display: none; }
  .topbar-actions { gap: 10px; }
  .workspace { display: block; }
  .controls-pane { border-right: 0; border-bottom: 1px solid var(--line); padding: 28px 20px; }
  .results-pane { padding: 28px 20px 40px; }
  .results-heading { display: block; }
  .disclosure { margin-top: 12px; text-align: left; }
  .summary-strip { grid-template-columns: repeat(2, 1fr); }
  .score-grid, .boundary { grid-template-columns: 1fr; }
  .inline-metrics { grid-template-columns: repeat(2, 1fr); }
  .scope-audit { grid-template-columns: 1fr; gap: 10px; }
  body[data-mode="public"] .controls-pane { position: static; min-height: 0; }
  body[data-mode="public"] .reviewer-hero { padding: 48px 20px; }
  .hero-narrative h1 { font-size: clamp(45px, 15vw, 67px); }
  .hero-routes { grid-template-columns: 1fr; }
  .hero-routes article { min-height: 0; }
  body[data-mode="public"] .proof-rail { grid-template-columns: 1fr 1fr; }
  .proof-rail > div { padding: 20px; }
  .proof-rail > div:nth-child(odd) { border-left: 0; }
  body[data-mode="public"] .workspace { display: block; }
  .stage-row .stage-detail { padding-left: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
}