.collection-buttons {
display: flex;
justify-content: center;
gap: 25px;
margin: 40px 0;
}

.btn-3d {
text-decoration: none;
padding: 16px 36px;
font-size: 18px;
font-weight: 600;
color: #ffffff;
border-radius: 10px;
transition: all 0.2s ease;
}

/* Winter */
.btn-winter {
background: linear-gradient(135deg, #5f9cff, #2b6fe3);
box-shadow: 0 6px 0 #1e4fb8;
}
.btn-winter:active {
transform: translateY(5px);
box-shadow: 0 2px 0 #1e4fb8;
}

/* Summer */
.btn-summer {
background: linear-gradient(135deg, #ffb347, #ff7a18);
box-shadow: 0 6px 0 #cc5c12;
}
.btn-summer:active {
transform: translateY(5px);
box-shadow: 0 2px 0 #cc5c12;
}