/* === NeuroGrid layout === */
.neuro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 1200px;
    margin: 0 auto;
    align-items: stretch;
    grid-auto-flow: dense;
}

@media (max-width: 900px) {
    .neuro-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .neuro-grid {
        grid-template-columns: 1fr;
    }
}

/* === NeuroBlock === */
.neuro-block {
    background: rgba(0, 255, 255, 0.08);
    border: 1px solid rgba(0, 255, 255, 0.2);
    padding: 1rem;
    border-radius: 12px;
    backdrop-filter: blur(6px);
    transition: 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.neuro-block:hover {
    box-shadow: 0 0 12px #0ff4;
    transform: scale(1.01);
}

.neuro-block.active {
    background: rgba(255, 255, 0, 0.2);
    box-shadow: 0 0 15px rgba(255, 255, 0, 0.4);
}

.neuro-block[data-size='wide'] {
    grid-column: span 2;
}

.neuro-block[data-size='full'] {
    grid-column: span 3;
}

@media (max-width: 900px) {
    .neuro-block[data-size='wide'],
    .neuro-block[data-size='full'] {
        grid-column: span 2;
    }
}
@media (max-width: 600px) {
    .neuro-block[data-size='wide'],
    .neuro-block[data-size='full'] {
        grid-column: span 1;
    }
}

/* автозаполнение хвоста строки */
.neuro-grid > .neuro-block:last-child:nth-child(3n + 1) {
    grid-column: span 3;
}

/* === Mini grid (sublayout inside a block) === */
.mini-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 1rem;
}

.mini {
    background: rgba(0, 255, 255, 0.15);
    padding: 12px;
    border-radius: 6px;
    text-align: center;
    color: cyan;
    font-weight: bold;
    font-size: 0.9rem;
    transition: 0.2s ease;
}

.mini:hover {
    background: rgba(0, 255, 255, 0.3);
    transform: scale(1.05);
}

.mini.active {
    background: rgba(255, 255, 0, 0.4);
    color: black;
}