@import url("https://fonts.googleapis.com/css2?family=Wix+Madefor+Display:wght@400..800&display=swap");

body {
  font-family: "Wix Madefor Display", sans-serif;
  background-color: #000000;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 90vh;
}
.ripple {
  position: relative;
  margin: auto;
  background-color: #000000a4;
  width: 10rem;
  height: 10rem;
  border-radius: 50%;
  animation: none;
}
.ripple.active {
  animation: ripple 1s cubic-bezier(0.8, 0.01, 0.6, 1) infinite;
}
#timer {
  font-size: 2em;
  color: #ffffff44;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.active #timer {
  color: #ffffff;
}
#timer:hover {
  cursor: pointer;
}

.guide {
  color: #ffffff44;
}
ul {
  margin: 0;
  padding: 0;
  list-style-type: none;
}
@keyframes ripple {
  0% {
    box-shadow: 0 0 0 0rem rgba(255, 255, 255, 0.01),
      0 0 0 1rem rgba(255, 255, 255, 0.01), 0 0 0 2rem rgba(255, 255, 255, 0.01),
      0 0 0 5rem rgba(255, 255, 255, 0.01);
  }
  100% {
    box-shadow: 0 0 0 1rem rgba(255, 255, 255, 0.02),
      0 0 0 2rem rgba(255, 255, 255, 0.02), 0 0 0 5rem rgba(255, 255, 255, 0.02),
      0 0 0 8rem rgba(255, 255, 255, 0);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0rem rgba(255, 255, 255, 0.01),
      0 0 0 1rem rgba(255, 255, 255, 0.01), 0 0 0 2rem rgba(255, 255, 255, 0.01),
      0 0 0 5rem rgba(255, 255, 255, 0.01);
  }
  70% {
    box-shadow: 0 0 0 1rem rgba(255, 255, 255, 0.1),
      0 0 0 2rem rgba(255, 255, 255, 0.1), 0 0 0 5rem rgba(255, 255, 255, 0.1),
      0 0 0 8rem rgba(255, 255, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0rem rgba(255, 255, 255, 0.01),
      0 0 0 1rem rgba(255, 255, 255, 0.01), 0 0 0 2rem rgba(255, 255, 255, 0.01),
      0 0 0 5rem rgba(255, 255, 255, 0.01);
  }
}