.build-hint { color: var(--cyan); font-size: .72rem; line-height: 1.4; }
.build-card.active { border-color: var(--lime); box-shadow: 0 0 0 1px var(--lime) inset; }
.grid-cell.target { border-color: var(--lime); color: var(--lime); cursor: crosshair; box-shadow: 0 0 12px #a3e63533 inset; }