* {
  padding: 0px;
  margin: 0px;
  box-sizing: border-box;
}




.main{
  display: block;
}



.main_card {
  display: block;
  margin-top: 0px;
  width: 100%;
  height: 900px;
  background-color: White;
}

html {
  scroll-behavior: smooth;
}






.button button {
  position: fixed;
  bottom: 30px;
  right: 30px;
  padding: 12px 20px;
  background: #DCDCDC;
  color: white;
  border: none;
  border-radius: 300px;
  cursor: pointer;
  font-size: 16px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  z-index: 999;
  transition: transform 0.3s ease;

  opacity: 0;
  pointer-events: none;
  animation: showBtn 1s ease forwards;
  animation-delay: 0.5s; 
}


@keyframes showBtn {
  to {
    opacity: 1;
    pointer-events: auto;
  }
}


.button img {
  width: 20px;
}

.button button:hover {
  transform: scale(1.05); 
}




@media (max-width: 600px){

  * {

    user-select: none;  
  }

  .button img{
    width: 15px;
  }

  .button button {
    padding: 10px 15px;
    bottom: 10px;
    right: 10px;
  }
}