.rh-board {
  display: grid;
  grid-template-columns: repeat(6, 48px);
  gap: 3px;
  margin: 8px auto;
  width: max-content;
  background: #2b3a4d;
  padding: 5px;
  border-radius: 12px;
}
.rh-cell {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background: #3a4d63;
  position: relative;
  cursor: pointer;
}
.rh-cell.car {
  border-radius: 10px;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.18);
}
.rh-cell.sel { outline: 3px solid #ffd93d; outline-offset: -1px; }
.rh-cell.exit { background: #1f2937; }
.rh-cell.exit::after {
  content: "»";
  position: absolute;
  right: -2px; top: 50%;
  transform: translateY(-50%);
  color: #ff6b6b;
  font-weight: 900;
  font-size: 22px;
}
.rh-lv { text-align: center; font-weight: 700; color: #25323f; }