/* The existing instrument palette and type; the routed design owns the large screen. */
.r2g [hidden], [data-pg-panel][hidden] { display: none; }
.pg-modes { display: flex; gap: 8px; margin: 16px 0 24px; border-bottom: 1px solid var(--rule-strong); }
.pg-mode { min-height: 46px; padding: 8px 18px; border: 0; border-bottom: 3px solid transparent; background: transparent; color: var(--muted); font: 600 16px var(--sans); cursor: pointer; }
.pg-mode[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.pg-simulation-intro { max-width: 70ch; margin: 0 0 24px; color: var(--ink-2); }
.r2g { padding-bottom: 32px; }
.r2g-intro h2 { margin: 0 0 8px; font-size: var(--fs-xl); }
.r2g-intro p { max-width: 70ch; margin: 0 0 24px; color: var(--ink-2); }
.r2g-stages { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); list-style: none; padding: 0; margin: 0 0 24px; border-block: 1px solid var(--rule); }
.r2g-stages li { display: flex; align-items: start; gap: 8px; padding: 14px 6px; font: 600 12.5px/1.4 var(--sans); color: var(--muted); }
.r2g-step-index { display: grid; place-items: center; width: 22px; height: 22px; flex: 0 0 22px; border: 1px solid var(--rule-strong); border-radius: 50%; }
.r2g-stages small { display: block; margin-top: 4px; font-size: 12px; font-weight: 400; }
.r2g-stages [data-state="running"] { color: var(--ink); }
.r2g-stages [data-state="running"] .r2g-step-index { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.r2g-stages [data-state="done"] { color: var(--good); }
.r2g-stages [data-state="done"] .r2g-step-index { border-color: var(--good); }
.r2g-stages [data-state="error"] { color: var(--bad); }
.r2g-workspace { display: grid; grid-template-columns: minmax(300px, .85fr) minmax(0, 1.15fr); align-items: start; gap: 24px; }
.r2g-code, .r2g-result { min-width: 0; }
.r2g-code .editor-area { min-height: 320px; }
.r2g-inputs { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin-top: 16px; }
.r2g-inputs label { min-width: 0; font-size: 12.5px; color: var(--case-ink); }
.r2g-inputs input { width: 100%; min-width: 0; margin-top: 5px; }
.r2g .controls { flex-wrap: wrap; }
.r2g-elapsed { color: var(--case-ink); font: 13px var(--mono); }
.r2g-status { font-size: 14px; line-height: 1.5; color: var(--case-ink); margin: 16px 0 0; }
.r2g-assumptions { font-size: 14px; color: var(--case-ink); margin-top: 16px; }
.r2g-assumptions summary, .r2g-measurements summary { cursor: pointer; font-weight: 600; padding-block: 8px; }
.r2g-assumptions p { margin: 10px 0; }
.r2g-result-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.r2g-result-head h3 { margin: 0; font-size: var(--fs-lg); }
.r2g-result-head .btn { flex-shrink: 0; }
.r2g-layout .layout-figure { margin: 0; }
.r2g-layout .layout-screen { min-height: 320px; }
.r2g-layout .layout-svg { max-height: 520px; }
.r2g-layout .diagram-breakpoints { flex-wrap: wrap; overflow: visible; justify-content: flex-start; }
.r2g-layout .diagram-breakpoints .diagram-step-button { flex: 0 1 auto; max-width: 100%; }
.r2g-empty { display: flex; min-height: 420px; flex-direction: column; align-items: center; justify-content: center; padding: 24px; text-align: center; border: 1px solid var(--screen-rule); border-radius: var(--r-ctl); background: var(--screen); color: var(--screen-ink); }
.r2g-empty svg { fill: none; stroke: var(--screen-muted); stroke-width: 2; }
.r2g-empty p { font-size: var(--fs-lg); margin: 20px 0 8px; }
.r2g-empty span { font-size: 14px; color: var(--screen-muted); max-width: 35ch; }
.r2g-layers { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-bottom: 12px; }
.r2g-layers label { display: flex; align-items: center; gap: 5px; min-height: 30px; font-size: 13px; cursor: pointer; }
.r2g-layers input { accent-color: var(--accent); }
.r2g-summary { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; margin: 20px 0; padding-block: 16px; border-block: 1px solid var(--rule); }
.r2g-summary div { min-width: 0; }
.r2g-summary dt { font-size: 13px; color: var(--muted); }
.r2g-summary dd { margin: 5px 0 0; font: 500 18px var(--mono); overflow-wrap: anywhere; }
.r2g-summary .r2g-negative { color: var(--bad); }
.r2g-result-note, .r2g-footnote { font-size: 13px; color: var(--muted); line-height: 1.55; max-width: 75ch; }
.r2g-errors { white-space: pre-wrap; overflow-wrap: anywhere; font: 13px/1.6 var(--mono); padding: 14px; border: 1px solid var(--bad); border-radius: var(--r-ctl); background: var(--bad-soft); color: var(--bad); }
.r2g-measurements { font-size: 14px; margin-block: 20px; }
.r2g-table-wrap { overflow: auto; }
.r2g-table-wrap table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.r2g-table-wrap :is(th, td) { text-align: right; white-space: nowrap; padding: 10px 8px; border-bottom: 1px solid var(--rule); }
.r2g-table-wrap :is(th, td):first-child { text-align: left; }
.r2g-table-wrap th { color: var(--muted); font-weight: 600; }
@media (max-width: 1050px) {
  .r2g-stages { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .r2g-workspace { grid-template-columns: minmax(0, 1fr); }
  .r2g-code .editor-area { min-height: 300px; }
}
@media (max-width: 520px) {
  .r2g-stages { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .r2g-stages li { padding: 10px 2px; }
  .r2g-result-head { flex-wrap: wrap; }
  .r2g-empty { min-height: 290px; }
  .r2g-inputs { gap: 6px; }
  .r2g-inputs input { padding: 0 7px; }
  .r2g-summary { gap: 16px 12px; }
  .r2g-summary dd { font-size: 15px; }
}