.speaker-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    /* 5 per row */
    gap: 20px;
    margin-top: 30px;
}

.speaker-card {
    text-align: center;
}

.speaker-img {
    width: 100%;
    height: 220px;
    /* fixed height for uniform alignment */
    object-fit: cover;
    /* crops but keeps proportions */
    border-radius: 10px;
    display: block;
    margin: 0 auto;
}

.speaker-name {
    margin-top: 10px;
    font-size: 1.1rem;
    font-weight: 600;
}

.speaker-affiliation {
    font-size: 0.9rem;
    color: #fff;
}

/* Responsive */
@media (max-width: 1200px) {
    .speaker-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

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