/*
  Palette and type are taken from road furniture: asphalt greys, painted
  markings, hazard yellow and reflector red. Overpass is drawn from the
  US Highway Gothic signage alphabet, so the whole page reads from the same
  vocabulary as the thing being simulated.
*/

:root {
  --asphalt: #23262b;
  --asphalt-deep: #191b1f;
  --asphalt-raised: #2c3036;
  --verge: #3a3e45;
  --marking: #edeae3;
  --marking-dim: rgba(237, 234, 227, 0.55);
  --marking-faint: rgba(237, 234, 227, 0.12);
  --hazard: #f2b705;
  --reflector: #e2483d;
  --signal: #6fbf9b;

  --font-display: 'Overpass', system-ui, sans-serif;
  --font-mono: 'Overpass Mono', ui-monospace, monospace;

  --gap: 18px;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--asphalt-deep);
  color: var(--marking);
  font-family: var(--font-display);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

#video {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.rig {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  min-height: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--gap);
}

/* ---------- bars ---------- */

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.mark__title {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 900;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.mark__sub {
  margin: 2px 0 0;
  font-size: 13px;
  font-weight: 400;
  color: var(--marking-dim);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 14px 7px 11px;
  border: 1px solid var(--marking-faint);
  border-radius: 999px;
  background: var(--asphalt);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--marking-dim);
}

.status[data-state='ok'] .status__dot {
  background: var(--signal);
}

.status[data-state='warn'] .status__dot {
  background: var(--hazard);
}

.status[data-state='error'] .status__dot {
  background: var(--reflector);
}

.status[data-state='loading'] .status__dot {
  background: var(--hazard);
  animation: pulse 1.1s ease-in-out infinite;
}

@keyframes pulse {
  50% {
    opacity: 0.25;
  }
}

.bar--foot {
  padding-top: 4px;
  border-top: 1px solid var(--marking-faint);
}

.keys {
  margin: 0;
  font-size: 13px;
  color: var(--marking-dim);
}

.keys--quiet {
  font-size: 12px;
  opacity: 0.7;
}

.keys__sep {
  display: inline-block;
  width: 1px;
  height: 12px;
  margin: 0 12px -1px;
  background: var(--marking-faint);
}

kbd {
  display: inline-block;
  min-width: 24px;
  margin-right: 3px;
  padding: 2px 6px;
  border: 1px solid var(--marking-faint);
  border-radius: 5px;
  background: var(--asphalt);
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: center;
  color: var(--marking);
}

/* ---------- layout ---------- */

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: var(--gap);
  flex: 1;
  min-height: 0;
}

.stage {
  position: relative;
  min-height: 420px;
  border: 1px solid var(--marking-faint);
  border-radius: var(--radius);
  background: var(--verge);
  overflow: hidden;
}

.stage canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.scoreboard {
  position: absolute;
  top: 14px;
  left: 16px;
  display: flex;
  gap: 22px;
  pointer-events: none;
}

.scoreboard__item {
  display: flex;
  flex-direction: column;
}

.scoreboard__item--quiet {
  opacity: 0.55;
}

.scoreboard__value {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--marking-dim);
}

/* ---------- overlay ---------- */

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(25, 27, 31, 0.82);
  backdrop-filter: blur(3px);
}

.overlay[hidden] {
  display: none;
}

.overlay__card {
  max-width: 380px;
  text-align: center;
}

.overlay__title {
  margin: 0 0 8px;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.overlay__body {
  margin: 0 0 18px;
  color: var(--marking-dim);
  font-size: 14px;
}

.button {
  padding: 11px 22px;
  border: none;
  border-radius: 8px;
  background: var(--hazard);
  color: var(--asphalt-deep);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.12s ease, filter 0.12s ease;
}

.button:hover {
  filter: brightness(1.08);
}

.button:active {
  transform: translateY(1px);
}

.button[hidden] {
  display: none;
}

:focus-visible {
  outline: 2px solid var(--hazard);
  outline-offset: 3px;
}

/* ---------- panel ---------- */

.panel {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  min-width: 0;
}

.block {
  padding: 12px;
  border: 1px solid var(--marking-faint);
  border-radius: var(--radius);
  background: var(--asphalt);
}

.block__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.block__canvas {
  display: block;
  width: 100%;
  margin-top: 10px;
  border-radius: 6px;
  background: var(--asphalt-deep);
}

.block__canvas--camera {
  aspect-ratio: 4 / 3;
  max-height: 180px;
  object-fit: contain;
}

.block__canvas--trace {
  height: 70px;
}

.block__canvas--bar {
  height: 22px;
  background: transparent;
  margin-top: 8px;
}

.legend {
  display: flex;
  align-items: center;
  gap: 5px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  color: var(--marking-dim);
}

.legend__key {
  width: 10px;
  height: 2px;
  margin-left: 7px;
}

.legend__key--raw {
  background: rgba(237, 234, 227, 0.4);
}

.legend__key--filtered {
  height: 3px;
  background: var(--hazard);
}

.legend__key--zone {
  height: 9px;
  background: rgba(111, 191, 155, 0.35);
}

.readout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(52px, 1fr));
  gap: 6px;
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--marking-faint);
}

.readout div {
  min-width: 0;
}

.readout dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--marking-dim);
}

.readout dd {
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ---------- controls ---------- */

.control {
  margin-top: 11px;
}

.control label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--marking-dim);
}

.control label span {
  color: var(--marking);
}

.control input[type='range'] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 22px;
  margin-top: 4px;
  background: transparent;
  cursor: pointer;
}

.control input[type='range']::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 2px;
  background: var(--asphalt-raised);
}

.control input[type='range']::-moz-range-track {
  height: 4px;
  border-radius: 2px;
  background: var(--asphalt-raised);
}

.control input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  margin-top: -5px;
  border: none;
  border-radius: 50%;
  background: var(--hazard);
}

.control input[type='range']::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: none;
  border-radius: 50%;
  background: var(--hazard);
}

/* ---------- responsive ---------- */

/*
  On wide screens the stage should always be fully visible, so the rig is
  pinned to the viewport height and the telemetry column scrolls inside
  itself rather than pushing the page taller than the window.
*/
@media (min-width: 941px) {
  body {
    overflow: hidden;
  }

  .rig {
    height: 100dvh;
    min-height: 0;
  }

  .layout {
    min-height: 0;
  }

  .stage {
    min-height: 0;
  }

  .panel {
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: var(--asphalt-raised) transparent;
  }
}

@media (max-width: 940px) {
  .layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .stage {
    min-height: 62vh;
  }

  .panel {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .block {
    flex: 1 1 260px;
  }
}

@media (max-width: 560px) {
  :root {
    --gap: 12px;
  }

  .panel {
    flex-direction: column;
  }

  .scoreboard__value {
    font-size: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}