/* Arena operator telemetry remains visually distinct from Jev mass. */
[hidden] { display: none !important; }

html[data-booth="arena"] .booth {
  grid-template-columns: minmax(0, 1fr) 300px;
}
html[data-booth="arena"] .stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 33%);
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 8px 12px;
  padding: 8px 10px;
  overflow: hidden;
}
html[data-booth="arena"] .board-slot {
  grid-column: 1;
  grid-row: 1;
  container-type: size;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  display: grid;
  place-items: start;
}
html[data-booth="arena"] .lower-third {
  grid-column: 1;
  grid-row: 2;
  margin-top: 0;
  gap: 10px;
}
html[data-booth="arena"] .san-xl { font-size: 32px; }
html[data-booth="arena"] .operator-review {
  grid-column: 2;
  grid-row: 1 / 3;
  align-self: stretch;
  margin-top: 0;
  min-height: 0;
  overflow: hidden;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
}
html[data-booth="arena"] .eval-graph-wrap {
  height: min(22vh, 180px);
  flex: 0 0 auto;
}
html[data-booth="arena"] .tape {
  flex: 1 1 auto;
  min-height: 120px;
  overflow: auto;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
html[data-booth="arena"] .tape h2 { margin: 0 0 6px; }
html[data-booth="arena"] .stage:has(#reviewHud[hidden]) .eval-graph-wrap { height: 0; }
html[data-booth="arena"] .plate h3 { font-size: 22px; }
html[data-booth="arena"] textarea { min-height: 64px; }
html[data-booth="arena"] .rack { padding: 10px 12px 16px; }
html[data-booth="arena"] .stage:has(.operator-review[hidden]) {
  grid-template-columns: minmax(0, 1fr);
}
html[data-booth="arena"] .stage:has(.operator-review[hidden]) .board-hud {
  --board-size: min(calc(100cqh - 44px), calc(100cqw - var(--eval-gutter)));
}

.board-hud {
  --eval-gutter: 58px;
  --board-size: min(calc(100cqw - var(--eval-gutter)), calc(100cqh - 44px));
  display: grid;
  grid-template-columns: auto var(--board-size);
  grid-template-rows: 22px var(--board-size) 22px;
  column-gap: 8px;
  width: max-content;
  height: calc(var(--board-size) + 44px);
  max-width: 100%;
}
.board-hud:not(:has(#evalBar:not([hidden]))) {
  --eval-gutter: 0px;
  column-gap: 0;
}
.board-hud .board-wrap {
  grid-column: 2;
  grid-row: 2;
  width: var(--board-size);
  height: var(--board-size);
}
.capture-strip {
  grid-column: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  overflow: hidden;
  line-height: 1;
}
.top-captures { grid-row: 1; }
.bottom-captures { grid-row: 3; }
.capture-side { color: var(--mute); font-size: 10px; min-width: 30px; }
.captured-pieces {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: "Segoe UI Symbol", "Noto Sans Symbols 2", sans-serif;
  font-size: 16px;
  letter-spacing: -2px;
}
.material-advantage {
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.eval-bar {
  grid-column: 1;
  grid-row: 1 / 4;
  display: grid;
  grid-template-rows: 22px minmax(0, 1fr) 22px;
  justify-items: center;
  width: 48px;
  min-height: 0;
}
.eval-label {
  align-self: center;
  color: var(--mute);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .035em;
}
.eval-track {
  position: relative;
  width: 20px;
  height: 100%;
  overflow: hidden;
  background: #080a0f;
  border: 1px solid #68758a;
}
.eval-track::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  border-top: 1px solid var(--preview);
}
#evalFill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ink);
  transition: height 500ms ease-out;
}
.eval-summary {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  font-size: 9px;
  line-height: 1.1;
  white-space: nowrap;
}
#evalValue { font-family: var(--font-mono); font-size: 11px; }
#evalDirection { color: var(--mute); }

.operator-review {
  flex: 0 0 auto;
  margin-top: 12px;
  padding: 10px 12px 8px;
  border: 1px solid var(--line);
  background: #0c1018;
}
.end-card { min-width: min(420px, 92vw); text-align: left; }
.end-card h3 { margin: 0 0 6px; }
.end-card p { margin: 0 0 12px; color: var(--mute); font-size: 13px; }
.end-card .btn-row { margin-top: 16px; }
.review-heading, .review-move { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.review-heading { flex-wrap: wrap; }
.review-heading h2 { margin: 0; color: var(--ink); font-size: 10px; letter-spacing: .08em; }
.operator-only { color: var(--mute); margin-left: 8px; font-weight: 400; }
#reviewStatus { color: var(--mute); font-size: 11px; }
.review-move { margin-top: 6px; font-size: 12px; }
#reviewPly { font-family: var(--font-mono); }
.move-quality { font-weight: 600; color: var(--mute); }
.eval-graph-wrap { position: relative; height: 64px; margin-top: 6px; }
#evalGraph { display: block; width: 100%; height: 100%; overflow: hidden; cursor: pointer; }
#evalGraphEmpty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  text-align: center;
  color: var(--mute);
  font-size: 11px;
  pointer-events: none;
}
.eval-zero { stroke: var(--line); stroke-width: 1; stroke-dasharray: 4 4; }
.eval-line { fill: none; stroke: var(--preview); stroke-width: 2; vector-effect: non-scaling-stroke; }
.eval-area { fill: #3ee0ff; opacity: .08; }
.eval-cursor { stroke: var(--amber); stroke-width: 1; vector-effect: non-scaling-stroke; }
.eval-point { fill: var(--preview); stroke: #0c1018; stroke-width: 1; }
.eval-point.active { fill: var(--amber); }
.review-note { margin: 4px 0 0; color: var(--mute); font-size: 10px; }
.operator-metrics { margin-top: 10px; padding-top: 8px; border-top: 1px solid var(--line); }
.score-heading { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 4px; color: var(--mute); font-size: 10px; text-transform: uppercase; letter-spacing: .04em; }
.operator-metrics .kv { font-size: 11px; align-items: baseline; margin-top: 2px; }
.operator-metrics .v { flex-shrink: 0; }
.estimate-label { font-size: 10px; }
.mass-label { margin-top: 5px; color: var(--mute); font-size: 10px; }
.mass { margin-top: 3px; }
.operator-toggle { padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.operator-toggle label { color: var(--ink); font-size: 12px; }
.operator-toggle p { margin: 4px 0 0; color: var(--mute); font-size: 11px; }
#jevScorePlate { border-color: var(--preview); }
#jevScorePlate h3 { color: var(--preview); }
.score-note { margin: 4px 0 8px; color: var(--mute); font-size: 11px; }
#resetScore { width: 100%; margin-top: 8px; }
.quality-best, .quality-excellent, .quality-good { color: var(--ok); }
.quality-inaccuracy { color: var(--amber); }
.quality-mistake { color: #ffa45b; }
.quality-blunder { color: #ff7777; }
.ply-quality { float: right; margin-left: 5px; font-weight: 600; }
.ply.active .ply-quality { color: inherit; }

@supports not (width: 1cqh) {
  .board-hud { --board-size: min(calc(100vw - 520px), calc(100vh - 140px)); }
}
@media (max-width: 900px) {
  /* Use the document as the only vertical scroller on the stacked Arena. */
  html[data-booth="arena"] { height: auto; min-height: 100%; overflow-x: clip; overflow-y: auto; }
  html[data-booth="arena"] body { height: auto; min-height: 100dvh; overflow: visible; }
  html[data-booth="arena"] .shell { display: flex; flex-direction: column; height: auto; min-height: 100dvh; }
  html[data-booth="arena"] .main { flex: 1 0 auto; min-height: auto; overflow: visible; }
  html[data-booth="arena"] .booth { display: block; height: auto; overflow: visible; }
  html[data-booth="arena"] .stage {
    display: flex;
    flex-direction: column;
    height: auto;
    overflow: visible;
  }
  html[data-booth="arena"] .board-slot,
  html[data-booth="arena"] .lower-third,
  html[data-booth="arena"] .operator-review {
    grid-column: auto;
    grid-row: auto;
  }
  html[data-booth="arena"] .board-slot {
    container-type: size;
    width: auto;
    max-width: none;
  }
  html[data-booth="arena"] .board-hud {
    --board-size: min(calc(100cqw - var(--eval-gutter)), calc(100cqh - 44px));
  }
  html[data-booth="arena"] .rack { height: auto; overflow: visible; }
  html[data-booth="arena"] .strip { flex: 0 0 44px; min-width: 0; gap: 10px; padding: 0 10px; }
  html[data-booth="arena"] .wordmark,
  html[data-booth="arena"] .strip-clock { flex: 0 0 auto; white-space: nowrap; }
  html[data-booth="arena"] .strip-meta { min-width: 0; gap: 8px; white-space: nowrap; overflow-x: auto; scrollbar-width: none; }
  html[data-booth="arena"] .strip-meta::-webkit-scrollbar { display: none; }
  html[data-booth="arena"] .strip-meta > * { flex: 0 0 auto; }
  html[data-booth="arena"] .rail { flex: 0 0 auto; min-width: 0; }
  html[data-booth="arena"] .ticker { flex: 0 0 28px; min-height: 28px; }
  .board-slot { height: min(calc(100vw - 42px), 640px); min-height: 0; flex: 0 0 auto; }
  .board-hud { --eval-gutter: 66px; }
  .operator-review { max-width: 740px; }
  .rack { display: block; }
  @supports not (width: 1cqh) {
    .board-hud { --board-size: min(calc(100vw - 98px), 584px); }
  }
}
@media (max-width: 480px) {
  html[data-booth="arena"] .strip-clock { display: none; }
  html[data-booth="arena"] .strip-meta { font-size: 10px; }
  .stage { padding: 8px; }
  .board-slot { height: calc(100vw - 22px); }
  .board-hud { --eval-gutter: 48px; column-gap: 6px; }
  .eval-bar { width: 42px; }
  .eval-label { font-size: 7px; }
  .eval-track { width: 16px; }
  .capture-strip { gap: 5px; }
  .capture-side { font-size: 9px; min-width: 25px; }
  .captured-pieces { font-size: 18px; letter-spacing: -2px; }
  .lower-third { gap: 10px; }
  .operator-review { padding: 8px; }
  .operator-only { display: block; margin: 2px 0 0; }
  .eval-graph-wrap { height: 72px; }
}
@media (max-height: 650px) and (min-width: 901px) {
  html[data-booth="arena"] .san-xl { font-size: 26px; }
  .eval-graph-wrap { height: 48px; }
}
@media (prefers-reduced-motion: reduce) {
  #evalFill { transition: none; }
}