.heap-section {
  background: var(--bg);
  border: 1px solid var(--grid);
  border-radius: 8px;
  padding: 12px 14px 14px 14px;
  margin-top: 18px;
}

.heap-section .head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 6px;
}
.heap-section .name {
  font-weight: 700; color: var(--title); font-size: 14px;
}
.heap-section .stats {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px; color: var(--text);
  display: flex; flex-wrap: wrap; gap: 6px 14px;
  margin-top: 1px;
}
.heap-section .stats .label { color: var(--muted); margin-right: 4px; }

.heap-section canvas {
  width: 100%;
  height: 320px;
  display: block;
  background: var(--bg-soft);
  border-radius: 4px;
  margin-top: 6px;
}

.heap-input {
  width: 90px;
  padding: 6px 10px;
  font-size: 13px;
  font-family: ui-monospace, Menlo, Monaco, monospace;
  background: var(--bg);
  border: 1px solid var(--light);
  border-radius: 4px;
  color: var(--text);
}
.heap-input:focus {
  outline: none;
  border-color: var(--title);
}

/* Race section */
.race-board {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 14px;
}
@media (max-width: 720px) {
  .race-board { grid-template-columns: 1fr; }
}

.race-panel {
  background: var(--bg);
  border: 1px solid var(--grid);
  border-radius: 8px;
  padding: 10px 12px 12px 12px;
}
.race-panel .head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 4px;
}
.race-panel .name {
  font-weight: 700; color: var(--title); font-size: 14px;
}
.race-panel .complexity {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px; color: var(--muted);
}
.race-panel .ops {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px; color: var(--text);
  margin-top: 2px;
}
.race-panel .ops .done {
  display: inline-block; margin-left: 8px;
  color: var(--accent); font-weight: 700;
}
.race-panel canvas {
  width: 100%;
  height: 160px;
  display: block;
  background: var(--bg-soft);
  border-radius: 4px;
  margin-top: 6px;
}