.tutorial-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    max-width: 100%;
}

.tutorial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.tutorial-card img {
    max-width: 100%;
    height: auto;
    object-fit: cover;
}


.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: green;
  color: #fff;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  
  text-decoration: none;
  font-size: 1.3rem;

  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  opacity: 0;
  pointer-events: none;
}

.back-to-top.show {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--secondary-color);
  transform: translateY(-5px);
  box-shadow: 0 8px 18px rgba(34, 117, 67, 0.35);
}