@keyframes falling {
    0%   { top: -100px; transform: translateX(-50%) scaleY(1); }
    90%  { top: 52vh;   transform: translateX(-50%) scaleY(1); }
    100% { top: 55vh;   transform: translateX(-50%) scaleY(0.1); }
}
#drop {
  position: absolute;   
  left: 50%;
  top: -100px;
  transform: translateX(-50%);
  width: 60px;
  height: 80px;
  background: rgba(180, 220, 240, 0.7);
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%; 
  z-index: 3;
}

#drop.fall {
    animation: falling 0.9s ease-in forwards; 
}

#black.disapear{
opacity: 0;
}

#welcome.visible{
    opacity: 1;
}

#logo {
  opacity: 0;  
  transition: opacity 0.8s ease; 
}

#logo.visible {
  opacity: 1;            
}

#ripples {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    pointer-events: none;
    z-index: 10;
}

.ripple {
    position: absolute;
    left: 50%;
    top: 55vh;              
    transform: translate(-50%, -50%) scale(0);
    width: 80px;
    height: 30px;            
    border-radius: 50%;
    border: 1.5px solid rgba(180, 220, 240, 0.6);
    background: transparent;
    z-index: 3;
    animation: ripple-anim 1.5s ease-out forwards;
}

@keyframes ripple-anim {
    0%   { transform: translate(-50%, -50%) scale(0);   opacity: 0.8; }
    100% { transform: translate(-50%, -50%) scale(4);   opacity: 0; }
}

.ripple:nth-child(2) { animation-delay: 0.15s; }
.ripple:nth-child(3) { animation-delay: 0.30s; }
.ripple:nth-child(4) { animation-delay: 0.45s; }