.img-circle{border-radius:50%;overflow:hidden;object-fit:cover}.img-hover-grayscale{filter:grayscale(100%);transition:filter .3s ease}.img-hover-grayscale:hover{filter:grayscale(0%)}.img-highlight{border:2px solid transparent;transition:border-color .3s ease}.img-highlight:hover{border-color:#3498db}.image-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}.image-grid img{width:100%;height:auto}