style.css

:root {
  --background-color: #224941;
  --color: #f5f5f1;
  --dark-color: #010f1c;
  font-size: 62.5%;
}

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

body {
  background: var(--background-color) url('./img/bg.jpg') no-repeat center
    center;
  color: var(--color);
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: 'Poppins', sans-serif;
  font-size: 1.6rem;
  overflow: hidden;
  min-height: 100vh;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 30rem;
  width: 30rem;
  margin: auto;
  position: relative;
  transform: scale(1);
}

h1 {
  text-align: center;
}

.circle {
  background-color: var(--dark-color);
  height: 100%;
  width: 100%;
  position: absolute;
  top:0;
  left:0;
  z-index: -1;
  border-radius: 50%;
}

.gradient-circle {
  height: 32rem;
  width: 32rem;
  position: absolute;
  top: -1rem;
  left: -1rem;
  z-index: -2;
  border-radius: 50%;
}

.pointer-container{
  position: absolute;
  top: -4rem;
  left: 14rem;
  width: 2rem;
  height: 19rem;
  animation: rotate 7.5s linear forwards infinite;
  transform-origin: bottom center;
}

.pointer{
  background-color: var(--color);
  height: 2rem;
  width: 2rem;
  border-radius: 50%;
}

.container.grow {
  animation: grow 3s linear forwards;
}

.container.shrink {
  animation: shrink 3s linear forwards;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes grow {
  from {
    transform: scale(1);
  }

  to {
    transform: scale(1.2);
  }
}

@keyframes shrink {
  from {
    transform: scale(1.2);
  }

  to {
    transform: scale(1);
  }
}