Webleb - UI Elements - Burnout Symphony

HTML

CSS

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background-color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
}

.animation-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 50%;
  overflow: hidden;
  background-color: #000;
}

.shape {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  opacity: 0;
  animation: burnout 10s infinite linear; 
}
.shape:nth-child(1) {
  background-color: #ff5733; /* Cor inicial - Enérgica */
}
.shape:nth-child(2) {
  background-color: #ff9800; /* Cor em mudança - Diminuição da energia */
}
.shape:nth-child(3) {
  background-color: #00e676; /* Cor de calma - Esgotamento */
}

@keyframes burnout {
  0% {
    opacity: 0;
    transform: scale(0);
  }
  20% {
    opacity: 1;
    transform: scale(1.2);
  }
  40% {
    opacity: 0.8;
    transform: scale(1);
  }
  60% {
    opacity: 0.6;
    transform: scale(0.8);
  }
  80% {
    opacity: 0.4;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(0.2);
  }
}

JS