body {
    background: #f4f4f4;
}
.grid-item {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
    border-radius: 12px;
    color: #fff;
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    text-decoration: none;
}
.grid-item:hover {
    transform: scale(1.04);
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}
@media (max-width: 700px) {
    .grid-item {
        height: 56px;
        font-size: 1em;
    }
}