.nav-square {
  position: absolute;
  width: 120px;   /* adjust as needed */
  height: 120px;  /* adjust as needed */
  cursor: pointer;
  user-select: none;
  object-fit: cover; /* ensures JPEG scales nicely */
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.4);
  transition: transform 0.2s ease;
}

.nav-square:hover {
  transform: scale(1.05);
}


/* Responsive sizing for nav squares */
@media (max-width: 800px) {
  .nav-square {
    width: 90px;
    height: 90px;
  }
}

@media (max-width: 600px) {
  .nav-square {
    width: 70px;
    height: 70px;
  }
}

@media (max-width: 400px) {
  .nav-square {
    width: 55px;
    height: 55px;
  }
}