/* board: the lanes, the floating dock, and the setup panel. Colours come from tokens.css only. */
@layer components {
  .stage {
    --dock-h: 156px;
    position: fixed;
    inset: 56px 0 0 0;
    display: grid;
    grid-template-columns: 1fr;
    grid-auto-rows: minmax(132px, 1fr);
    gap: 8px;
    padding: 4px 16px calc(var(--dock-h) + 4px);
    overflow-x: clip;
    overflow-y: auto;
  }

  .stage-error {
    grid-column: 1 / -1;
    margin: 0;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--ink);
  }

  .hint {
    position: fixed;
    left: 50%;
    top: calc(56px + (100dvh - 56px - var(--dock-h, 156px)) / 2);
    transform: translate(-50%, -50%);
    max-width: calc(100vw - 32px);
    margin: 0;
    padding: 8px 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    background: var(--glass);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    color: var(--ink);
    font-size: 13px;
    text-align: center;
    pointer-events: none;
    z-index: 1;
  }

  @media (min-width: 720px) {
    .stage[data-lanes="2"],
    .stage[data-lanes="4"] {
      grid-template-columns: 1fr 1fr;
    }
    .stage[data-lanes="2"] {
      grid-auto-rows: 1fr;
    }
  }

  /* one lane: a header row of name and counters over the bars */
  .lane {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    border-top: 1px solid var(--line);
    padding-top: 8px;
  }

  .lane-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 4px 12px;
    min-width: 0;
    padding-bottom: 4px;
  }

  .lane-name {
    margin: 0;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.4;
  }

  .lane-rank {
    align-self: center;
    padding: 0 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    color: var(--ink);
    font: 600 11px/20px var(--font-num);
  }

  .lane-rank[data-rank="1"] {
    border-color: transparent;
    background: var(--accent);
    color: var(--accent-ink);
  }

  .lane-note {
    color: var(--muted);
    font-size: 12px;
  }

  .stats {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 12px;
    margin: 0 0 0 auto;
    color: var(--muted);
    font: 500 12px/1.5 var(--font-num);
    font-variant-numeric: tabular-nums;
  }

  .stat {
    display: inline-flex;
    gap: 4px;
  }

  .stat dt {
    margin: 0;
  }

  .stat dd {
    margin: 0;
    color: var(--ink);
    text-align: right;
    font-variant-numeric: tabular-nums;
  }

  .num {
    font-family: var(--font-num);
    font-variant-numeric: tabular-nums;
  }

  .bars {
    display: block;
    flex: 1 1 0;
    width: 100%;
    min-height: 56px;
  }

  /* the floating card: transport, scrubber, and the setup panel above them */
  .dock {
    position: fixed;
    inset: auto 0 40px 0;
    z-index: 2;
    display: flex;
    justify-content: center;
    padding: 0 12px;
    pointer-events: none;
  }

  .dock-card {
    width: min(720px, 100%);
    padding: 8px 12px 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--glass);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    backdrop-filter: blur(16px) saturate(1.2);
    pointer-events: auto;
  }

  .dock-row {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
  }

  .chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    background: transparent;
    color: var(--ink);
    font-weight: 600;
    cursor: pointer;
  }

  .chip[aria-expanded="true"] {
    border-color: transparent;
    background: var(--accent);
    color: var(--accent-ink);
  }

  .transport {
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .play-btn {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 0;
    border-radius: var(--radius-pill);
    background: var(--accent);
    color: var(--accent-ink);
    cursor: pointer;
  }

  .play-btn .ico-pause,
  .play-btn[data-playing="true"] .ico-play {
    display: none;
  }

  .play-btn[data-playing="true"] .ico-pause {
    display: block;
  }

  .speed {
    display: flex;
    align-items: center;
    flex: 1 1 0;
    gap: 8px;
    min-width: 0;
  }

  .speed-label {
    color: var(--muted);
    font-size: 12px;
  }

  input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    min-width: 0;
    height: 44px;
    margin: 0;
    background: transparent;
    cursor: pointer;
  }

  input[type="range"]::-webkit-slider-runnable-track {
    height: 4px;
    border-radius: var(--radius-bar);
    background: color-mix(in srgb, var(--ink) 22%, transparent);
  }

  input[type="range"]::-moz-range-track {
    height: 4px;
    border-radius: var(--radius-bar);
    background: color-mix(in srgb, var(--ink) 22%, transparent);
  }

  input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    margin-top: -7px;
    border: 0;
    border-radius: var(--radius-pill);
    background: var(--accent);
  }

  input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border: 0;
    border-radius: var(--radius-pill);
    background: var(--accent);
  }

  /* the scrubber: a swap-density strip with a transparent range on top and a thin playhead */
  .scrub {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    height: 36px;
    margin-top: 4px;
  }

  .strip,
  #scrub {
    grid-column: 1;
    grid-row: 1;
  }

  .strip {
    width: 100%;
    height: 10px;
    align-self: center;
    border-radius: var(--radius-bar);
  }

  #scrub {
    height: 36px;
    z-index: 1;
  }

  #scrub::-webkit-slider-runnable-track {
    height: 36px;
    background: transparent;
  }

  #scrub::-moz-range-track {
    height: 36px;
    background: transparent;
  }

  #scrub::-webkit-slider-thumb {
    width: 4px;
    height: 32px;
    margin-top: 4px;
    border-radius: var(--radius-bar);
    background: var(--ink);
  }

  #scrub::-moz-range-thumb {
    width: 4px;
    height: 32px;
    border-radius: var(--radius-bar);
    background: var(--ink);
  }

  .tick-out {
    grid-column: 2;
    grid-row: 1;
    min-width: 9ch;
    color: var(--muted);
    font-size: 11px;
    text-align: right;
  }

  /* setup: an inline panel, not a modal, so nothing traps focus */
  .setup {
    display: grid;
    gap: 12px;
    max-height: min(58dvh, 520px);
    margin-bottom: 8px;
    padding: 4px 4px 12px;
    overflow-y: auto;
    border-bottom: 1px solid var(--line);
  }

  .field {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
  }

  .field legend,
  .field label {
    display: block;
    margin-bottom: 4px;
    padding: 0;
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
  }

  .field-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 8px;
  }

  .opts {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .opt {
    position: relative;
    display: inline-flex;
  }

  .opt input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    opacity: 0;
    cursor: pointer;
  }

  .opt span {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    font-weight: 600;
  }

  .opt input:checked + span {
    border-color: transparent;
    background: var(--accent);
    color: var(--accent-ink);
  }

  .opt input:focus-visible + span {
    outline: 2px solid var(--focus);
    outline-offset: 2px;
  }

  select {
    width: 100%;
    min-height: 44px;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--ink);
    font: inherit;
  }

  .range-row {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .range-row output {
    min-width: 4ch;
    text-align: right;
  }

  .setup-h {
    margin: 0 0 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--muted);
  }

  .info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 8px;
  }

  .info-card {
    padding: 12px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }

  .info-card h3 {
    margin: 0 0 8px;
    font-size: 13px;
    font-weight: 700;
  }

  .info-card dl {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 12px;
    margin: 0;
    font-size: 12px;
  }

  .info-card dt {
    color: var(--muted);
  }

  .info-card dd {
    margin: 0;
    min-width: 0;
    overflow-wrap: anywhere;
  }

  .info-card dd.num {
    font-size: 12px;
  }

  .note {
    margin: 0;
    color: var(--muted);
    font-size: 12px;
  }

  #sound[aria-pressed="false"] .sound-on,
  #sound[aria-pressed="true"] .sound-off {
    display: none;
  }

  /* the chrome fades while a race plays and nobody is touching anything */
  [data-chrome] {
    transition: opacity 0.35s ease;
  }

  body[data-idle] [data-chrome] {
    opacity: 0;
    pointer-events: none;
  }

  @media (min-width: 720px) {
    .setup {
      grid-template-columns: 1fr 1fr;
      grid-auto-flow: dense;
      column-gap: 20px;
    }
    .setup > .field-row,
    .setup > section,
    .setup > .note {
      grid-column: 1 / -1;
    }
  }

  @media (max-width: 480px) {
    .speed-label {
      position: absolute;
      width: 1px;
      height: 1px;
      overflow: hidden;
      clip-path: inset(50%);
      white-space: nowrap;
    }
    .dock {
      padding: 0 8px;
    }
    .chip {
      padding: 0 12px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    [data-chrome] {
      transition: none;
    }
  }
}