:root {
  --slide: #121a26;
  --slide-2: #18222f;
  --rule: #263345;
  --ink: #d7dee8;
  --muted: #8a96a8;
  --neuropil: #c2408f;
  --spike: #63e68c;
  --sense: #8fb8e8;
  --act: #f2a93b;
  --danger: #ff6b6b;
  --r-panel: 10px;
  --r-ctl: 6px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--slide); color: var(--ink); }
body {
  font-family: "Chivo", system-ui, sans-serif;
  font-size: 15px; line-height: 1.5;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--sense); }
a:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible {
  outline: 2px solid var(--act); outline-offset: 2px;
}

.masthead {
  display: flex; gap: 32px; align-items: flex-end; justify-content: space-between;
  padding: 28px 28px 18px; max-width: 1600px; margin: 0 auto;
}
.title h1 {
  margin: 0; font-weight: 800; font-size: clamp(30px, 4vw, 52px); letter-spacing: -0.02em; line-height: 1;
}
.lede { margin: 10px 0 0; max-width: 68ch; color: var(--muted); font-weight: 300; font-size: 16px; }
.pickers { display: flex; flex-direction: column; gap: 12px; }
.picker, .live { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.live-row { display: flex; gap: 6px; }
.live-row select { flex: 1; min-width: 0; }
#live-run { border-color: var(--act); color: var(--act); }
select, button {
  font: inherit; color: var(--ink); background: var(--slide-2); border: 1px solid var(--rule);
  border-radius: var(--r-ctl); padding: 7px 10px;
}
.picker select { min-width: 340px; max-width: 46vw; }
button { cursor: pointer; }
button.on { border-color: var(--act); color: var(--act); }

.rig {
  display: grid; gap: 14px; padding: 0 28px 20px; max-width: 1600px; margin: 0 auto;
  grid-template-columns: minmax(0, 1fr) 340px;
  grid-template-areas: "arena side" "flow flow" "transport transport" "outcome outcome";
}
.arena { grid-area: arena; position: relative; border-radius: var(--r-panel); overflow: hidden; background: #0d131c; min-height: 460px; }
#scene { display: block; width: 100%; height: 100%; min-height: 460px; }
.arena-hud { position: absolute; left: 14px; top: 12px; display: flex; gap: 10px; align-items: center; pointer-events: none; }
.mode {
  font-weight: 800; font-size: 14px; padding: 3px 10px; border-radius: 999px;
  background: rgba(242, 169, 59, 0.14); color: var(--act); border: 1px solid rgba(242, 169, 59, 0.5);
}
.mode.flight, .mode.takeoff, .mode.landing { background: rgba(143, 184, 232, 0.14); color: var(--sense); border-color: rgba(143, 184, 232, 0.5); }
.task { color: var(--muted); font-size: 13px; text-shadow: 0 1px 2px #000; }
.cam-toggle { position: absolute; right: 12px; top: 10px; display: flex; gap: 6px; }
.cam-toggle button { padding: 4px 9px; font-size: 13px; background: rgba(18, 26, 38, 0.8); }

.side { grid-area: side; display: flex; flex-direction: column; gap: 14px; }
figure { margin: 0; background: #0d131c; border-radius: var(--r-panel); overflow: hidden; }
figcaption { padding: 8px 12px; font-size: 12.5px; color: var(--muted); }
.fpv img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 3; image-rendering: pixelated; background: #000; }
.brain canvas { display: block; width: 100%; height: 300px; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; vertical-align: 0; margin-right: 2px; }
.dot.spike { background: var(--spike); box-shadow: 0 0 6px var(--spike); }
.dot.anat { background: var(--neuropil); opacity: 0.7; }
#brainstats { display: block; margin-top: 2px; }

.flow { grid-area: flow; background: #0d131c; border-radius: var(--r-panel); padding: 12px 16px 10px; }
.flow-head, .pw {
  display: grid; grid-template-columns: 190px minmax(0, 1fr) minmax(0, 1fr) 210px; gap: 16px; align-items: center;
}
.flow-head { font-size: 12.5px; color: var(--muted); padding-bottom: 6px; border-bottom: 1px solid var(--rule); }
.c-sense { color: var(--sense); }
.c-in { color: var(--sense); }
.c-out { color: var(--spike); }
.c-act { color: var(--act); }
.pw { padding: 7px 0; border-bottom: 1px solid rgba(38, 51, 69, 0.5); }
.pw:last-child { border-bottom: 0; }
.pw .sense b { display: block; font-weight: 600; font-size: 14px; }
.pw .sense small { color: var(--muted); font-size: 12px; }
.pw .neurons { font-size: 12px; color: var(--muted); }
.pw .neurons .who { display: block; margin-bottom: 3px; }
.bars { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.bar { position: relative; height: 14px; background: var(--slide-2); border-radius: 3px; overflow: hidden; }
.bar i { position: absolute; top: 0; bottom: 0; width: 0; transition: width 60ms linear; }
.bar.l i { right: 0; }
.bar.r i { left: 0; }
.in .bar i { background: var(--sense); }
.out .bar i { background: var(--spike); }
.bar span { position: absolute; top: -1px; font-size: 11px; line-height: 16px; color: var(--ink); padding: 0 4px; mix-blend-mode: difference; }
.bar.l span { left: 0; }
.bar.r span { right: 0; }
.act b { color: var(--act); font-weight: 600; }
.act { font-size: 13.5px; }
.pw.quiet { opacity: 0.45; }
.pw.hot { opacity: 1; }
.footnote { margin: 8px 0 0; color: var(--muted); font-size: 12px; max-width: 110ch; }

.transport { grid-area: transport; display: flex; gap: 14px; align-items: center; }
.transport #play { min-width: 76px; }
#scrub { flex: 1; accent-color: var(--act); }
.clock { min-width: 72px; text-align: right; }
.speed { color: var(--muted); font-size: 13px; display: flex; gap: 6px; align-items: center; }
.outcome { grid-area: outcome; color: var(--muted); font-size: 14px; }
.outcome b { color: var(--ink); }
.outcome .ok { color: var(--spike); }
.outcome .fail { color: var(--danger); }

.colophon { max-width: 1600px; margin: 0 auto; padding: 4px 28px 32px; color: var(--muted); font-size: 12.5px; }
.colophon p { max-width: 120ch; }

@media (max-width: 1050px) {
  .rig { grid-template-columns: minmax(0, 1fr); grid-template-areas: "arena" "side" "flow" "transport" "outcome"; padding: 0 16px 16px; }
  .side { flex-direction: row; }
  .side figure { flex: 1; }
  .flow-head, .pw { grid-template-columns: 120px minmax(0, 1fr) minmax(0, 1fr) 120px; gap: 8px; }
  .masthead { flex-direction: column; align-items: flex-start; padding: 20px 16px 12px; }
  .picker select { min-width: 0; max-width: 100%; width: 100%; }
  .picker, .pickers, .live { width: 100%; }
  .colophon { padding: 4px 16px 24px; }
}
@media (max-width: 640px) {
  .side { flex-direction: column; }
  .flow-head { display: none; }
  .pw { grid-template-columns: 1fr 1fr; }
  .pw .sense { grid-column: 1 / -1; }
  .arena, #scene { min-height: 320px; }
}
@media (prefers-reduced-motion: reduce) {
  .bar i { transition: none; }
}
.live[hidden] { display: none; }