#hero {
  background-image: url("../image/hero.jpg");
  height: 90vh;
  width: 100%;
  background-size: cover;
  background-position: top 25% right 0;
  padding: 0 80px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

#hero h4 {
  padding-bottom: 15px;
}

#hero h1 {
  color: darkblue;
}

#hero p {
  color: black;
}


#hero .btn:hover {
  background-color: darkblue;
  color: gold;
}

.category-card:hover {
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.75);
  background-color: lightblue;
}

.card:hover {
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.75);
}

.navbar-nav .nav-link.active {
  font-weight: bold;
  color: #0d6efd !important;
}

#backToTop {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: none; /* toggled via JS */
  z-index: 1050; /* above navbar/footer */
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 50%;
  font-size: 20px;
  font-weight: 700;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}
#backToTop:focus {
  outline: none;
  box-shadow: 0 0 0 0.25rem rgba(255, 193, 7, 0.35);
}
#backToTop:hover {
  transform: translateY(-2px);
}
@media (max-width: 576px) {
  #backToTop {
    bottom: 16px;
    right: 16px;
  }
}