.letter-grid-wrapper{margin:40px 0;max-width:680px}.letter-grid{display:grid;gap:20px;grid-template-columns:repeat(4,1fr)}.letter-card{border-radius:25px;box-shadow:0 2px 8px rgba(0,0,0,.1);cursor:pointer;display:block;overflow:hidden;position:relative;transition:transform .3s ease,box-shadow .3s ease}.letter-card:hover{box-shadow:0 8px 20px rgba(102,126,234,.25);transform:translateY(-4px)}.letter-card img{border-radius:25px;display:block;height:auto;width:100%}@media (max-width:600px){.letter-grid{gap:16px;grid-template-columns:repeat(2,1fr)}.letter-card,.letter-card img{border-radius:20px}}