@import url("https://fonts.googleapis.com/css2?family=Rubik:wght@500&display=swap");
html {
  font-size: 62.5%;
}

body {
  font-size: 1.6rem;
  background: #173152;
}

h1 {
  color: #A1A19B;
  margin: 0;
  font-size: 2.5rem;
  text-align: center;
}

.wrapper {
  position: relative;
  display: grid;
  place-items: center center;
  margin: 10rem auto;
}

.bathtub {
  max-width: 30rem;
  height: 30rem;
  z-index: 1;
}

.duck {
  max-width: 5rem;
  height: 5rem;
  fill: #A89B62;
  position: relative;
  z-index: 4;
  top: 20rem;
  left: 0rem;
  filter: contrast(200%);
}

.bubble {
  border-radius: 100%;
  background: #809A97;
  z-index: 2;
  position: relative;
}
.bubble:before, .bubble:after {
  content: "";
  border-radius: 100%;
  position: absolute;
  z-index: 3;
}
.bubble:before {
  background: #ABABAA;
}
.bubble:after {
  background: #97B2AE;
}

.bubble--one {
  width: 2rem;
  height: 2rem;
  top: 12rem;
}
.bubble--one:before {
  width: 1rem;
  height: 1rem;
  top: -2rem;
  right: 2rem;
}
.bubble--one:after {
  width: 3rem;
  height: 3rem;
  top: -12rem;
  left: 4rem;
}

.bubble--two {
  width: 2rem;
  height: 2rem;
  top: 5rem;
  left: 8rem;
}
.bubble--two:before {
  width: 1rem;
  height: 1rem;
  top: 0;
  right: -2rem;
}
.bubble--two:after {
  width: 5rem;
  height: 5rem;
  top: -3rem;
  left: 2rem;
  opacity: 0.7;
  filter: saturate(80%);
}

.bubble--three {
  width: 2rem;
  height: 2rem;
  top: 10rem;
  right: -5rem;
}
.bubble--three:before {
  width: 1rem;
  height: 1rem;
  top: -2rem;
  right: -2rem;
}
.bubble--three:after {
  width: 2rem;
  height: 2rem;
  top: -2rem;
  left: 10rem;
  opacity: 0.8;
}