.category-menu {
  flex-direction: column;
  width: 200px;
  background: #fff4e6;
  padding: 1rem;
  border-radius: 8px;
  border: 2px solid #f7a072;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 100px;
  height: fit-content;
}

.category-menu button {
  margin-bottom: 10px;
  padding: 10px 15px;
  border: none;
  background-color: #f0f0f0;
  cursor: pointer;
  border-radius: 6px;
  transition: background-color 0.2s;
  width: 100%;
  font-weight: 500;
  margin: 5px;
  text-align: center;
  font-size: 1rem;
}

.category-menu button.active {
  background-color: #007bff;
  color: white;
}

@media (max-width: 768px) {
  main {
    flex-direction: column;
  }

  .category-menu {
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
    border: none;
    border-bottom: 2px solid #f7a072;
    position: relative;
    top: 0;
    padding: 0.4rem;
    justify-content: center;
    background: #fff4e6;
  }

  .category-menu button {
    margin: 4px;
    padding: 6px 10px; /* smaller padding on mobile */
    font-size: 0.8rem; /* smaller text on mobile */
    width: auto; /* compact buttons on mobile */
    min-width: 70px;
    flex: 1 0 auto;
  }
}

.go-to-menu-btn {
  display: none;
  position: fixed;

  top: calc(1rem + 48px); /* BELOW cart icon */
  right: 1rem;

  z-index: 999;
  background-color: #475569;
  color: white;
  font-weight: bold;

  padding: 0.45em 0.9em;
  border: none;
  border-radius: 0.5em;
  cursor: pointer;

  font-size: 0.85rem;
}