body {
    background: #0b0b0b;
    color: #fff;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.collaboration-section {
    text-align: center;
    padding: 60px 20px;
}

.collaboration-section h2 {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 40px;
    text-shadow: 0px 0px 15px rgba(255, 255, 255, 0.3);
}

.collab-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border: 1px solid #222;
    border-radius: 16px;
    overflow: hidden;
    max-width: 1000px;
    padding: 8px;
    margin: auto;
    background: linear-gradient(190deg, #252525, #101010);
    box-shadow: 0px 8px 25px rgba(0, 0, 0, 0.6);
}

.collab-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    border: 1px solid #484848;
    /* inner dividers */
}

.collab-item img {
    max-width: 150px;
    max-height: 60px;
    filter: grayscale(100%) brightness(0.9);
    transition: filter 0.3s ease;
}

.collab-item img:hover {
    filter: grayscale(0%) brightness(1);
}

/* Responsive */
@media (max-width: 768px) {
    .collab-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .collab-grid {
        grid-template-columns: 1fr;
    }
}