html {
  font-size: 10px;
  /* margin: 0;
  padding: 0; */
  color: rgb(58, 59, 59);  
  font-family: "Open Sans", sans-serif;
  font-weight: 400;
}

main {
  max-width: 50rem;
  margin: 2rem auto;
  background: linear-gradient(30deg, #166ff5 , #24cbff);
  padding: 3rem 1.6rem 6rem 1.6rem;
  border-radius: 4rem;
  box-shadow: -5px 2px 5px 0px #ccc;
}
h1 {
  text-align: center;
  font-size: 3rem;
  margin: 0;
  padding-bottom : 3rem;

}
section {
  background: white;
  font-size: 1.8rem;
  margin-bottom: 1.6rem;
  padding: 0 1.6rem;
  border-radius: 1rem;
  box-shadow: inset 0 2px 2px lightgray;
}
section > div {
  padding: 1.6rem 0;

}
.bill {
  display: flex;

}
.bill label {
  flex: 1;
  align-self: center;

}

.bill input {
  flex: 3;
  color: #2061c4;
}

input[type='number'] {
  background: #f4f4f5;
  font-size: 1.6rem;
  border: 2px solid rgb(171, 174, 175);
  border-radius: 3rem;
  padding: 0.8rem 0 0.8rem 1.4rem;
  box-shadow: inset 0 2px 2px lightgray;
  font-family: inherit;
  
}
.space-between {
  display: flex;
  justify-content: space-between;
}
.total {
  font-size: 2rem;
  font-weight: bolder;
}
.range {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  background: #eee;
  margin-top: 1.2rem;
  border-radius: 0.3rem;
  outline-color: #24cbff;
}
.range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background-color: #24cbff;
  cursor: pointer;
}
.range::-moz-range-thumb {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background-color: #24cbff;
  cursor: pointer;
  border: none;
}
.range::-moz-focus-outer {
  border:0;
}