/* Reaction Speedway: the controls, graph, info panel and chamber inside the practice shell's stage. */
.rs { position: absolute; inset: 0; display: grid; grid-template-columns: 330px minmax(0, 1fr); gap: 12px; padding: 10px 12px; }
.rs-left { display: flex; flex-direction: column; gap: 6px; min-height: 0; overflow-y: auto; padding: 2px; }
.rs-left .pss { gap: 6px; }
.rs-left .pss-row.is-locked .pss-ticks { display: none; }
.rs-left .pss-row { padding: 3px 10px; }
.rs-left .pss-note { font-size: 16px; line-height: 1.2; }
.rs-left .pss-ctl { margin-top: 0; }
.rs-eq { position: absolute; left: 10px; top: 8px; z-index: 1; margin: 0; padding: 2px 10px; border-radius: 8px; background: rgba(255,255,255,.85); color: #111827; font-size: 16px; font-weight: 700; line-height: 1.4; pointer-events: none; max-width: calc(100% - 20px); }
.rs-runrow { display: flex; gap: 8px; }
.rs-runbtn { flex: 1; min-height: 48px; font-size: var(--tlg-text-lg); }
.rs-skip { min-height: 48px; font-size: 16px; }
.rs-status { margin: 0; font-size: 16px; line-height: 1.3; color: var(--tlg-text-muted); }
.rs-main { display: grid; grid-template-rows: 250px minmax(0, 1fr); gap: 10px; min-width: 0; min-height: 0; }
.rs-top { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 10px; min-height: 0; }
.rs-graph { min-width: 0; min-height: 0; border: var(--tlg-border-width) solid var(--tlg-border); border-radius: var(--tlg-radius-lg); background: var(--tlg-surface); padding: 4px 6px; overflow: hidden; }
.rs-info { min-height: 0; overflow-y: auto; border: var(--tlg-border-width) solid var(--tlg-border); border-radius: var(--tlg-radius-lg); background: var(--tlg-surface); padding: 8px 10px; font-size: 16px; }
.rs-h { margin: 0 0 6px; font-size: 16px; font-weight: 800; }
.rs-q { margin: 0 0 6px; line-height: 1.35; }
.rs-runs { margin: 0; padding-left: 22px; display: flex; flex-direction: column; gap: 4px; line-height: 1.35; }
.rs-log { width: 100%; border-collapse: collapse; font-size: 16px; font-variant-numeric: tabular-nums; margin-bottom: 8px; }
.rs-log th, .rs-log td { text-align: left; padding: 3px 4px; border-bottom: 1px solid var(--tlg-border); }
.rs-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.rs-chips .ps-chip { min-height: 44px; min-width: 76px; }
.rs-why { display: flex; flex-direction: column; gap: 4px; }
.rs-opt { display: flex; gap: 8px; align-items: flex-start; padding: 6px 8px; min-height: 44px; border: var(--tlg-border-width) solid var(--tlg-border); border-radius: 10px; cursor: pointer; line-height: 1.3; }
.rs-opt input { width: 20px; height: 20px; margin: 1px 0 0; flex: none; accent-color: #a8321e; }
.rs-opt:has(input:checked) { border-color: #a8321e; background: var(--tlg-surface-2); box-shadow: inset 4px 0 0 #a8321e; }
.rs-opt:has(input:focus-visible) { outline: var(--tlg-focus-width) solid var(--tlg-focus); outline-offset: 1px; }
.rs-chamber { position: relative; min-height: 0; border-radius: var(--tlg-radius-lg); border: var(--tlg-border-width) solid var(--tlg-border); overflow: hidden; background: #eef4f7; }
.rs-example { display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; }
.rs-example .plg-legend { font-size: 14px; }
.rs-ex-graph { min-width: 0; }
.ps-brief--drawer .rs-example { grid-template-columns: 1fr; }
/* the Briefing page's wide example (example.wide): the slider beside the graph */
.ps-brief--page .is-wide .rs-example { grid-template-columns: 300px minmax(0, 1fr); gap: 16px; align-items: start; }
@media (max-width: 1100px) { .rs { grid-template-columns: 300px minmax(0, 1fr); } .rs-top { grid-template-columns: minmax(0, 1fr) 250px; } }
@media (max-width: 900px) {
  .rs { position: static; grid-template-columns: 1fr; }
  .rs-main { grid-template-rows: auto 420px; }
  .rs-top { grid-template-columns: 1fr; }
  .rs-graph { height: 250px; }
  .rs-example, .ps-brief--page .is-wide .rs-example { grid-template-columns: 1fr; }
}