/* Figure runner (js/run/). Prefix: rn- */
.rn {
  position: relative;
  margin: 6px 0 2px;
  padding: 14px;
  border: 2px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: 0 4px 0 var(--line);
  outline: none;
}
.rn:focus-visible {
  border-color: var(--blue-ink);
  box-shadow: 0 4px 0 var(--blue-ink);
}
/* spoken only: the live region where a screen reader hears a prediction and its result */
.rn-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.rn-grid {
  display: grid;
  gap: 14px;
  align-items: start;
}
.rn-grid.has-code {
  grid-template-columns: minmax(0, 1fr) minmax(170px, 34%);
}
@media (max-width: 720px) {
  .rn-grid.has-code {
    grid-template-columns: 1fr;
  }
}
.rn-stage {
  position: relative;
  min-width: 0;
  display: grid;
  place-items: center;
}
.rn-stage > svg {
  width: 100%;
  height: auto;
}

/* pseudocode */
.rn-code {
  margin: 0;
  padding: 8px 0;
  list-style: none;
  counter-reset: rn;
  border-radius: 12px;
  background: var(--panel-2);
  font-size: 12.5px;
}
.rn-code li {
  counter-increment: rn;
  position: relative;
  padding: 3px 10px 3px 34px;
  line-height: 1.45;
  color: var(--text-dim);
  transition:
    background-color var(--dur-2) ease,
    color var(--dur-2) ease;
}
.rn-code li::before {
  content: attr(data-n);
  position: absolute;
  left: 10px;
  color: var(--text-faint);
  font-weight: 800;
  font-size: 11px;
  top: 5px;
}
.rn-code li code {
  background: none;
  border: 0;
  border-radius: 0;
  font-weight: inherit;
  padding: 0;
  white-space: pre-wrap;
  color: inherit;
  font-size: inherit;
}
.rn-code li.on {
  background: var(--amber-dim);
  color: var(--text);
  font-weight: 700;
}
.rn-code li.on::after {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  bottom: 2px;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: var(--amber);
}

/* caption + predict */
.rn-cap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  min-height: 52px;
}
.rn-cap .mascot {
  flex: none;
}
.rn-bubble {
  position: relative;
  flex: 1;
  padding: 9px 13px;
  border: 2px solid var(--line);
  border-radius: 14px;
  font-size: 14.5px;
  line-height: 1.45;
  background: var(--panel);
}
.rn-bubble::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 50%;
  width: 12px;
  height: 12px;
  margin-top: -6px;
  background: var(--panel);
  border: 2px solid var(--line);
  border-width: 0 0 2px 2px;
  transform: rotate(45deg);
}
.rn-n {
  float: right;
  margin-left: 10px;
  font-size: 11.5px;
  font-weight: 900;
  color: var(--text-faint);
}
.rn-ask {
  margin-top: 10px;
  padding: 11px 13px;
  border-radius: 14px;
  background: var(--violet-dim);
  border: 2px solid var(--violet-edge);
  font-size: 14.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  transition:
    background-color var(--dur-3) var(--ease-out),
    border-color var(--dur-3) var(--ease-out);
}
.rn-ask[hidden] {
  display: none;
}
.rn-q {
  flex: 1;
  min-width: 200px;
  font-weight: 700;
}
.rn-qtag {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 8px;
  border-radius: 99px;
  background: var(--violet);
  color: var(--violet-on);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  vertical-align: 1px;
}
.rn-skip {
  appearance: none;
  border: 2px solid var(--violet-edge);
  background: var(--panel);
  color: var(--violet-ink);
  font: inherit;
  font-weight: 800;
  font-size: 13px;
  padding: 5px 12px;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 2px 0 var(--violet-edge);
}
.rn-res {
  flex: 1;
}
.rn-ask:has(.rn-res.ok) {
  background: var(--teal-dim);
  border-color: var(--teal-edge);
}
.rn-ask:has(.rn-res.no) {
  background: var(--rose-dim);
  border-color: var(--rose-edge);
}
.rn-res.ok b {
  color: var(--teal-ink);
}
.rn-res.no b {
  color: var(--rose-ink);
}
.rn-pickable {
  cursor: pointer;
}
.rn-pickable .rn-halo,
.rn-pickable.rn-halo {
  opacity: 1 !important;
  stroke: var(--violet);
  animation: rn-glow 1.1s ease-in-out infinite;
}
@keyframes rn-glow {
  50% {
    stroke-width: 6;
    stroke-opacity: 0.45;
  }
}

/* controls */
.rn-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}
.rn-b {
  appearance: none;
  flex: none;
  display: grid;
  place-items: center;
  min-width: 40px;
  height: 38px;
  padding: 0 10px;
  border: 2px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  color: var(--text-dim);
  font: inherit;
  font-weight: 900;
  font-size: 13px;
  cursor: pointer;
  box-shadow: 0 3px 0 var(--line);
  transition:
    transform var(--dur-1) ease-out,
    box-shadow var(--dur-1) ease-out;
}
.rn-b svg {
  width: 18px;
  height: 18px;
}
.rn-b:active:not(:disabled) {
  transform: translateY(3px);
  box-shadow: 0 0 0 var(--line);
}
.rn-b:disabled {
  opacity: 0.45;
  cursor: default;
}
@media (pointer: coarse) {
  .rn-b {
    height: 44px;
  }
  .rn-scrub {
    height: 44px;
  }
}
.rn-play {
  min-width: 52px;
  background: var(--teal);
  border-color: var(--teal);
  color: var(--teal-on);
  box-shadow: 0 3px 0 var(--teal-lip);
}
.rn-play:active {
  box-shadow: 0 0 0 var(--teal-lip);
}
.rn-speed {
  min-width: 46px;
}
.rn-scrub {
  flex: 1;
  min-width: 60px;
  height: 16px;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  cursor: pointer;
  --p: 0;
}
.rn .rn-scrub::-webkit-slider-runnable-track {
  height: 14px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--teal) calc(var(--p) * 100%), var(--line) 0);
}
.rn .rn-scrub::-moz-range-track {
  height: 14px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--teal) calc(var(--p) * 100%), var(--line) 0);
}
.rn .rn-scrub::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  margin-top: -4px;
  border-radius: 50%;
  background: var(--panel);
  border: 3px solid var(--teal);
  box-shadow: 0 2px 0 var(--teal-lip);
}
.rn .rn-scrub::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--panel);
  border: 3px solid var(--teal);
}
@media (max-width: 480px) {
  .rn-b {
    min-width: 44px;
    padding: 0 7px;
  }
  .rn-speed {
    display: none;
  }
}

/* number stepper for editable values */
.rn-edit {
  position: absolute;
  z-index: 5;
  transform: translate(-50%, -100%);
  transform-origin: 50% 100%;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px;
  border-radius: 12px;
  background: var(--text);
  color: var(--bg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
}
.rn-edit b {
  min-width: 26px;
  text-align: center;
  font-size: 15px;
}
.rn-edit button {
  appearance: none;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg) 16%, transparent);
  color: var(--bg);
  font: inherit;
  font-weight: 900;
  font-size: 17px;
  cursor: pointer;
}
.rn-editable {
  cursor: pointer;
}
.rn-editable rect {
  stroke: var(--blue-edge) !important;
  stroke-dasharray: 3 2;
}
.rn-drag {
  cursor: grab;
  touch-action: none;
}
.rn-dragging {
  cursor: grabbing;
}