:root {
  --fog: #e8eeec;
  --paper: #f7f9f7;
  --ink: #14282f;
  --muted: #52676b;
  --line: #b8c7c5;
  --blue: #246b9e;
  --blue-deep: #174b70;
  --coral: #a8473d;
  --sage: #3f6d54;
  --display: "Arial Narrow", "Aptos Narrow", "Roboto Condensed", sans-serif;
  --body: "Trebuchet MS", "Aptos", sans-serif;
  --data: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(20, 40, 47, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 40, 47, .035) 1px, transparent 1px),
    var(--fog);
  background-size: 24px 24px;
  font-family: var(--body);
  min-height: 100vh;
}

.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 20; background: var(--ink); color: white; padding: .7rem 1rem; }
.skip-link:focus { top: 1rem; }
.shell { width: min(1480px, calc(100% - 40px)); margin: 0 auto; padding: 24px 0 32px; }

.masthead {
  min-height: 92px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 32px;
  border-top: 5px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.product-kicker, .eyebrow {
  display: block;
  color: var(--muted);
  font: 700 .68rem/1.2 var(--data);
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1, h2, strong { margin: 0; }
h1 { font: 900 clamp(2.3rem, 5vw, 4.2rem)/.82 var(--display); letter-spacing: -.055em; }
h1 span { color: var(--blue); }
h1 small { font: 600 .24em/1 var(--data); color: var(--muted); letter-spacing: .04em; margin-left: .6rem; }
h2 { font: 800 1.1rem/1.1 var(--display); letter-spacing: -.01em; text-transform: uppercase; }

.paper-stamp {
  position: relative;
  min-width: 174px;
  padding: 12px 22px 11px 16px;
  color: var(--paper);
  background: var(--blue-deep);
  clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 50%, 100% 100%, 0 100%);
}
.paper-stamp b { display: block; font: 800 .86rem/1 var(--data); text-transform: uppercase; letter-spacing: .1em; }
.paper-stamp span { display: block; margin-top: 5px; font: .65rem/1 var(--data); opacity: .75; }

.live-state { display: flex; align-items: center; gap: 12px; min-width: 190px; }
.live-state strong, .live-state span { display: block; }
.live-state strong { font: 700 .9rem/1.2 var(--body); }
.live-state div > span { margin-top: 3px; color: var(--muted); font: .7rem/1.2 var(--data); }
.status-dot { width: 12px; height: 12px; border: 2px solid var(--ink); background: var(--muted); box-shadow: 0 0 0 4px rgba(100,119,123,.12); }
.status-dot.healthy { background: var(--sage); box-shadow: 0 0 0 4px rgba(79,128,101,.16); animation: pulse 2.2s ease-in-out infinite; }
.status-dot.stale, .status-dot.failed { background: var(--coral); }

.instrument-deck { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(440px, .8fr); border-bottom: 1px solid var(--ink); }
.run-recorder, .matrix-panel { padding: 32px 28px 28px; background: rgba(247,249,247,.75); }
.run-recorder { border-right: 1px solid var(--ink); }
.section-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-heading .eyebrow { margin-bottom: 7px; }
.section-heading.compact { margin-bottom: 18px; }
.refresh-label, .zero-key { color: var(--muted); font: .66rem/1.3 var(--data); }

.time-readout { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 24px; }
.time-readout span { display: block; color: var(--muted); font: .7rem/1 var(--data); text-transform: uppercase; }
.time-readout strong { display: block; margin-top: 8px; font: 900 clamp(3.2rem, 7vw, 6.8rem)/.8 var(--display); letter-spacing: -.07em; }
.deadline-block { text-align: right; padding-bottom: .3rem; }
.deadline-block strong { font: 700 1rem/1.2 var(--data); letter-spacing: 0; }

.run-track { position: relative; margin: 42px 0 20px; height: 34px; font: .62rem/1 var(--data); color: var(--muted); }
.track-line { position: absolute; top: 11px; left: 0; right: 0; height: 5px; background: var(--line); }
.track-line span { display: block; width: 0; height: 100%; background: var(--blue); transition: width .5s ease; }
.track-start, .track-stop { position: absolute; bottom: 0; }
.track-start { left: 0; }
.track-stop { right: 0; }
.track-pin { position: absolute; top: -10px; left: 0; transform: translateX(-50%); padding: 4px 6px; color: white; background: var(--blue-deep); transition: left .5s ease; }
.track-pin::after { content: ""; position: absolute; left: 50%; top: 100%; width: 1px; height: 13px; background: var(--blue-deep); }
.run-meta { display: flex; justify-content: space-between; gap: 24px; color: var(--muted); font: .68rem/1.4 var(--data); }
.run-meta b { color: var(--ink); }

.matrix { display: grid; grid-template-columns: minmax(76px, .8fr) repeat(3, minmax(92px, 1fr)); border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.matrix > div { min-height: 64px; padding: 9px 10px; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.matrix .axis { display: flex; align-items: center; color: var(--muted); background: rgba(232,238,236,.9); font: 700 .62rem/1.2 var(--data); text-transform: uppercase; }
.matrix .axis.corner { align-items: flex-end; background: linear-gradient(30deg, transparent 49%, var(--line) 50%, transparent 51%); }
.matrix .axis.corner::before { content: "SELL"; align-self: flex-start; margin-left: auto; }
.matrix .axis.corner::after { content: "BUY"; }
.matrix .cell { position: relative; background: rgba(100,119,123,.06); }
.matrix .cell.empty { background: repeating-linear-gradient(135deg, transparent 0 7px, rgba(100,119,123,.08) 7px 8px); }
.matrix .cell strong { display: block; font: 800 1.15rem/1 var(--data); }
.matrix .cell span { display: block; margin-top: 8px; color: var(--muted); font: .58rem/1 var(--data); }
.matrix-legend { display: flex; gap: 20px; margin-top: 12px; color: var(--muted); font: .62rem/1 var(--data); }
.matrix-legend span { display: flex; align-items: center; gap: 6px; }
.matrix-legend i { width: 16px; height: 6px; display: inline-block; }
.matrix-legend .loss { background: rgba(212,91,76,.55); }
.matrix-legend .edge { background: rgba(79,128,101,.65); }

.metric-rail { display: grid; grid-template-columns: repeat(5, 1fr); border-bottom: 1px solid var(--ink); background: var(--ink); color: var(--paper); }
.metric-rail > div { min-height: 116px; padding: 22px 24px; border-right: 1px solid rgba(255,255,255,.2); }
.metric-rail > div:last-child { border-right: 0; }
.metric-rail span, .metric-rail small { display: block; color: #a9bbba; font: .64rem/1 var(--data); text-transform: uppercase; letter-spacing: .08em; }
.metric-rail strong { display: block; margin: 12px 0 8px; font: 800 2rem/1 var(--data); }
.metric-rail .accent-metric { background: var(--blue-deep); }

.analysis-grid { display: grid; grid-template-columns: 1.6fr .7fr; border-bottom: 1px solid var(--ink); }
.edge-trace, .token-ledger { padding: 28px; background: rgba(247,249,247,.75); }
.edge-trace { border-right: 1px solid var(--ink); }
.chart { min-height: 210px; }
.chart svg { display: block; width: 100%; height: 210px; overflow: visible; }
.chart .grid { stroke: var(--line); stroke-width: 1; stroke-dasharray: 3 5; }
.chart .zero { stroke: var(--ink); stroke-width: 1.3; }
.chart .line { fill: none; stroke: var(--blue); stroke-width: 2.5; vector-effect: non-scaling-stroke; }
.chart .area { fill: url(#trace-fill); opacity: .42; }
.chart text { fill: var(--muted); font: 9px var(--data); }
.chart .empty-chart { color: var(--muted); font: .76rem/1.5 var(--data); }
.token-list { border-top: 1px solid var(--ink); }
.token-row { display: grid; grid-template-columns: 1fr auto; gap: 18px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.token-row strong { font: 900 1.55rem/1 var(--display); }
.token-row span { display: block; color: var(--muted); font: .63rem/1.4 var(--data); }
.token-row .token-values { text-align: right; }
.token-row .token-values b { display: block; font: 700 .9rem/1.2 var(--data); }

.table-section { padding: 30px 28px 18px; background: var(--paper); border-bottom: 1px solid var(--ink); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font: .72rem/1.25 var(--data); white-space: nowrap; }
th { padding: 10px 12px; text-align: left; color: var(--muted); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); font-size: .61rem; text-transform: uppercase; letter-spacing: .07em; }
td { padding: 12px; border-bottom: 1px solid var(--line); }
.num { text-align: right; }
.route-arrow { color: var(--blue); padding: 0 .35rem; }
.positive { color: var(--sage); }
.negative { color: var(--coral); }
.state-chip { padding: 3px 6px; border: 1px solid currentColor; font-size: .58rem; text-transform: uppercase; }

.footer-grid { display: grid; grid-template-columns: 1.35fr .65fr; border-bottom: 1px solid var(--ink); }
.error-log, .math-note { padding: 28px; background: rgba(247,249,247,.75); }
.error-log { border-right: 1px solid var(--ink); }
.errors { font: .7rem/1.5 var(--data); }
.error-row { display: grid; grid-template-columns: 150px minmax(120px,.5fr) 1fr; gap: 16px; padding: 10px 0; border-top: 1px solid var(--line); }
.error-row time, .error-row span { color: var(--muted); }
.empty-state { padding: 24px 0; color: var(--sage); font: .75rem/1.4 var(--data); }
.math-note p { max-width: 52ch; color: var(--muted); font-size: .82rem; line-height: 1.55; }
.math-note dl { display: grid; grid-template-columns: 1fr auto; gap: 8px 20px; margin: 20px 0; font: .68rem/1.3 var(--data); }
.math-note dt { color: var(--muted); }
.math-note dd { margin: 0; font-weight: 700; }
.no-execution { display: inline-block; padding-top: 14px; border-top: 3px solid var(--coral); font: 700 .68rem/1.3 var(--data); text-transform: uppercase; }

footer { display: flex; justify-content: space-between; padding: 14px 0; color: var(--muted); font: .62rem/1 var(--data); text-transform: uppercase; }
.connection-error { position: fixed; right: 20px; bottom: 20px; max-width: 360px; padding: 14px 18px; color: white; background: var(--coral); font: .75rem/1.4 var(--data); box-shadow: 5px 5px 0 var(--ink); }

@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(79,128,101,0); } }
@media (max-width: 980px) {
  .masthead { grid-template-columns: 1fr auto; }
  .live-state { grid-column: 1 / -1; padding-bottom: 16px; }
  .instrument-deck, .analysis-grid, .footer-grid { grid-template-columns: 1fr; }
  .run-recorder, .edge-trace, .error-log { border-right: 0; border-bottom: 1px solid var(--ink); }
  .metric-rail { grid-template-columns: repeat(2, 1fr); }
  .metric-rail > div { border-bottom: 1px solid rgba(255,255,255,.2); }
  .metric-rail > div:last-child { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .shell { width: min(100% - 20px, 1480px); padding-top: 10px; }
  .masthead { gap: 14px; min-height: 108px; }
  .paper-stamp { min-width: 130px; padding-left: 12px; }
  .paper-stamp span { display: none; }
  .run-recorder, .matrix-panel, .edge-trace, .token-ledger, .table-section, .error-log, .math-note { padding: 22px 16px; }
  .time-readout { grid-template-columns: 1fr; }
  .deadline-block { text-align: left; }
  .time-readout strong { font-size: 3.5rem; }
  .deadline-block strong { font-size: .85rem; }
  .matrix { grid-template-columns: 64px repeat(3, minmax(76px, 1fr)); }
  .matrix > div { padding: 7px; min-height: 58px; }
  .matrix .cell strong { font-size: .9rem; }
  .metric-rail { grid-template-columns: 1fr 1fr; }
  .metric-rail > div { padding: 18px 16px; min-height: 102px; }
  .metric-rail strong { font-size: 1.55rem; }
  .run-meta { flex-direction: column; gap: 6px; }
  .error-row { grid-template-columns: 1fr; gap: 4px; }
  footer { flex-direction: column; gap: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}