:root {
  --bg: #070d12;
  --panel: #0c1822;
  --input: #071016;
  --fg: #e7f6fb;
  --muted: #93b0bf;
  --dim: #68889a;
  --line: #2c4d60;
  --accent: #59dcff;
  --accent-ink: #042633;
  --warm: #ffb36b;
  --bad: #ff8d7c;
  --track: #163041;
  color-scheme: dark;
  font: 15px/1.45 ui-monospace, "Cascadia Mono", "SFMono-Regular", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body { min-height: 100vh; }
button, select, input { font: inherit; color: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; opacity: 0.4; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
::selection { background: #1c5c73; color: var(--fg); }

.wrap { max-width: 1120px; margin: 0 auto; padding: 22px 22px 64px; }

header { display: flex; justify-content: space-between; gap: 24px; align-items: end; border-bottom: 1px solid var(--line); padding-bottom: 14px; }
.brand { margin: 0; font-size: 12px; letter-spacing: 0.22em; color: var(--accent); font-weight: 500; }
.ready { margin: 6px 0 0; color: var(--muted); font-size: 12px; }
nav { display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; }
nav a { color: var(--muted); text-decoration: none; border: 1px solid transparent; padding: 6px 8px; }
nav a[aria-current="page"] { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }

.lede { margin: 22px 0 18px; }
.lede h1 { margin: 0 0 8px; font-size: 28px; font-weight: 500; letter-spacing: -0.04em; }
.lede p { margin: 0; max-width: 68ch; color: var(--muted); }

.layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 28px; align-items: start; }
.layout.single { grid-template-columns: minmax(0, 1fr); }

.slots { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-start; }
.slot { display: flex; flex-direction: column; gap: 6px; min-width: 92px; }
.slot select, .texty, .btn, .ghost-btn {
  background: var(--input);
  border: 1px solid var(--line);
  padding: 8px 10px;
}
.slot select { width: 100%; }
.slot.marked select { border-color: var(--accent); color: var(--accent); }
.idx {
  background: transparent;
  border: 0;
  color: var(--dim);
  padding: 0;
  text-align: left;
  font-size: 11px;
  letter-spacing: 0.08em;
}
.slot.marked .idx { color: var(--accent); }
.line-actions { display: flex; gap: 8px; margin-top: 8px; }
.btn { background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent); padding: 8px 12px; }
.ghost-btn { background: transparent; color: var(--fg); }
.ghost-btn[aria-pressed="true"] { border-color: var(--warm); color: var(--warm); }

.unknown { color: var(--warm); margin: 10px 0 0; }

.scores h2, .panel h2, .story h2, .bench h2, .probe h2, .curve h2, .matrix h2 { margin: 0 0 8px; font-size: 12px; letter-spacing: 0.14em; font-weight: 500; color: var(--accent); }
.scores { position: sticky; top: 12px; }
.sumline { display: flex; justify-content: space-between; gap: 12px; color: var(--dim); font-size: 12px; margin-bottom: 8px; }
.sumline.bad { color: var(--bad); }
.cand { display: flex; flex-wrap: wrap; gap: 8px; }
.bar { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; min-width: 5.6em; text-align: left; background: var(--panel); border: 1px solid var(--line); padding: 8px 10px; color: inherit; }
.bar.top { border-color: var(--accent); }
.bar .track { position: relative; height: 6px; width: 100%; background: var(--track); }
.bar .fill { display: block; height: 100%; background: #7fbfce; width: calc(var(--p) * 100%); }
.bar.top .fill { background: var(--accent); }
.bar .ghost { position: absolute; top: -3px; bottom: -3px; width: 2px; background: var(--warm); left: calc(var(--g) * 100%); }
.bar .n, .bar .w { font-variant-numeric: tabular-nums; }
.bar .w { color: var(--fg); }
.bar .n { color: var(--muted); }
.legend { color: var(--warm); font-size: 12px; margin-top: 8px; }
.rest { margin-top: 8px; }
.rest summary { color: var(--dim); font-size: 12px; }
.rest .cand { margin-top: 8px; }

.bench { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.bench h2, .bench .order { width: 100%; }
.specimen { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; text-align: left; background: var(--panel); border: 1px solid var(--line); padding: 8px 10px; max-width: 100%; }
.specimen.on { border-color: var(--accent); }
.toks { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.tok { border: 1px solid var(--line); padding: 2px 6px; color: var(--fg); }
.tok b { color: var(--dim); font-weight: 500; margin-left: 4px; }
.ports { display: flex; flex-direction: column; gap: 4px; }
.port { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.port .name { color: var(--dim); font-size: 11px; letter-spacing: 0.04em; min-width: 6.6em; }
.tok.readtok { border-color: var(--accent); color: var(--accent); }
.tok.readtok b { color: var(--accent); }
.note { color: var(--warm); }
.was { color: var(--warm); font-size: 12px; }
.probe .bench { margin-top: 8px; }

.walk-row { display: flex; align-items: center; gap: 0; overflow-x: auto; padding-bottom: 6px; }
.walk .slots { flex: 0 0 auto; flex-wrap: nowrap; align-items: center; }
.walk .slot { min-width: 0; }
.walk .fan { flex: 1 0 460px; width: 100%; min-width: 460px; height: auto; overflow: visible; display: block; }
.walk .step-arrow { color: var(--dim); align-self: center; }
.walk .slot select {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  padding: 0;
  text-align: center;
  text-align-last: center;
  background: var(--panel);
  appearance: none;
}
.walk .slot.now {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--ring, var(--line));
}
.walk .slot.now select {
  width: 74px;
  height: 74px;
  border: 0;
  background: var(--bg);
  color: var(--accent);
}
.fan-p { fill: var(--fg); font-size: 13px; font-family: ui-monospace, "Cascadia Mono", "SFMono-Regular", Menlo, Consolas, monospace; }
.fan-n { fill: var(--warm); font-size: 12px; font-family: ui-monospace, "Cascadia Mono", "SFMono-Regular", Menlo, Consolas, monospace; }
.nxt { cursor: pointer; }
.nxt circle { fill: #0c1822; stroke: #2c4d60; stroke-width: 1.5; }
.nxt.top circle { stroke: #59dcff; stroke-width: 2; }
.nxt text { fill: #e7f6fb; font-size: 15px; font-family: ui-monospace, "Cascadia Mono", "SFMono-Regular", Menlo, Consolas, monospace; }
.nxt.top text { fill: #59dcff; }
.fan path.held { fill: none; stroke: #ffb36b; stroke-dasharray: 5 4; stroke-linecap: round; }
.restwords { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.restword {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--dim);
  padding: 0;
}

.chain { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 12px; align-items: stretch; }
.tray { flex: 1 0 100%; display: flex; flex-direction: column; gap: 8px; }
.tray-label { margin: 0; color: var(--accent); font-size: 12px; letter-spacing: 0.08em; }
.tray .story { margin-top: 0; }
.stage { width: auto; min-width: 9em; text-align: left; background: var(--panel); color: inherit; border: 1px solid var(--line); padding: 8px 10px; display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
.stage .chev { color: var(--dim); font-size: 12px; }
.stage.open { color: var(--accent); border-color: var(--accent); }
.cells { display: flex; flex-wrap: wrap; gap: 4px; padding: 0 0 10px; }
.cell { min-width: 4.8em; background: var(--panel); border: 1px solid var(--line); color: var(--fg); padding: 6px 4px; font-variant-numeric: tabular-nums; }
.cell small { display: block; color: var(--dim); font-size: 10px; }
.cell.on { border-color: var(--accent); color: var(--accent); }

.story { margin-top: 16px; background: var(--panel); border: 1px solid var(--line); padding: 12px 14px; }
.story p { margin: 0 0 8px; color: var(--muted); }
.story table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.story td { padding: 2px 8px 2px 0; color: var(--muted); }
.story tr.total td { color: var(--fg); border-top: 1px solid var(--line); }
.story .scroller { max-height: 240px; overflow: auto; }
.check { color: var(--dim); font-size: 12px; margin-top: 8px; }
.check.bad { color: var(--bad); }

.controls { display: flex; flex-wrap: wrap; gap: 14px 18px; align-items: end; margin: 8px 0 16px; }
.controls label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 12px; }
.controls input[type="range"] { width: 160px; accent-color: var(--accent); }
.controls input[type="number"], .controls select { background: var(--input); border: 1px solid var(--line); padding: 8px; width: 8em; }
.order { color: var(--muted); margin: 0 0 12px; max-width: 70ch; }

.lamp { display: flex; justify-content: space-between; gap: 12px; border: 1px solid var(--line); padding: 10px 12px; margin-bottom: 12px; }
.lamp.match { border-color: var(--accent); color: var(--accent); }
.lamp.diff { border-color: var(--bad); color: var(--bad); }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.panel { border: 1px solid var(--line); padding: 12px; background: #09141c; }
.panel .meta { color: var(--dim); font-size: 12px; min-height: 2.8em; }
.stored { color: var(--muted); margin: 0 0 12px; }
.stored b { color: var(--fg); font-weight: 500; }
.facts { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 12px; }
.facts > div { border: 1px solid var(--line); padding: 8px 10px; color: var(--muted); background: var(--panel); }
.facts b { color: var(--fg); font-weight: 500; }

.matrices { display: flex; flex-direction: column; gap: 16px; margin-top: 12px; }
.matrix h2 { margin-bottom: 8px; }
.headwrap { overflow-x: auto; }
.mgrid { display: grid; grid-template-columns: 5.2em repeat(var(--n), minmax(3.4em, 1fr)); gap: 4px; align-items: stretch; min-width: 28em; }
.mlabel { background: transparent; border: 1px solid transparent; color: var(--muted); padding: 4px 2px; text-align: center; }
.mlabel.marked { color: var(--accent); border-color: var(--accent); }
.hlabel { color: var(--dim); font-size: 11px; line-height: 1.35; align-self: center; }
.hlabel.warm { color: var(--warm); }
.hlabel span { display: block; }
.wbar { background: color-mix(in srgb, var(--accent) calc(var(--p) * 100%), var(--panel)); border: 1px solid var(--line); color: var(--fg); text-align: center; padding: 8px 4px; min-height: 2.6em; font-variant-numeric: tabular-nums; }
.wbar.warm { background: color-mix(in srgb, var(--warm) calc(var(--p) * 100%), var(--panel)); }
.wbar.on { border-color: var(--accent); }
.wbar.out { color: var(--dim); background: transparent; font-size: 11px; display: flex; align-items: center; justify-content: center; }
.switch { display: flex; gap: 6px; margin-bottom: 10px; }

.curve { margin-top: 8px; background: var(--panel); border: 1px solid var(--line); padding: 12px; }
.curve svg { width: 100%; height: auto; display: block; }
.curve p { color: var(--muted); margin: 8px 0 0; }
.probe { margin-top: 16px; }

details { margin-top: 22px; border-top: 1px solid var(--line); padding-top: 12px; }
summary { cursor: pointer; color: var(--accent); }
details p { color: var(--muted); max-width: 75ch; }
footer { margin-top: 28px; color: var(--dim); font-size: 12px; max-width: 78ch; }
footer strong { color: var(--muted); font-weight: 500; }
.fail { border: 1px solid var(--bad); color: var(--bad); padding: 10px 12px; margin: 12px 0; }

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

@media (max-width: 860px) {
  header { flex-direction: column; align-items: start; }
  nav { justify-content: start; }
  .layout, .cols { grid-template-columns: 1fr; }
  .scores { position: static; }
}

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