.farm-field {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.55rem;
    max-width: 420px;
    margin: 0 auto;
}
.farm-plot {
    aspect-ratio: 1;
    border-radius: 14px;
    border: 1px solid rgba(46, 230, 166, 0.25);
    background: linear-gradient(160deg, #1a2a1c, #0e1610);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(1.4rem, 5vw, 2rem);
    cursor: pointer;
    transition: transform 0.12s ease, box-shadow 0.12s ease;
    user-select: none;
}
.farm-plot:active { transform: scale(0.96); }
.farm-plot.is-empty { opacity: 0.55; }
.farm-plot.is-growing { box-shadow: inset 0 0 0 2px rgba(255, 176, 32, 0.25); }
.farm-plot.is-ready {
    box-shadow: 0 0 16px rgba(46, 230, 166, 0.35);
    border-color: rgba(46, 230, 166, 0.55);
}
@media (max-width: 420px) {
    .farm-field { gap: 0.4rem; }
}