.input-bill-text,
.tip-label,
.split-row-text {
  font-size: clamp(1rem, 2.5vh, 2rem);
  margin-bottom: clamp(0.25rem, 1vh, 1rem);
}

.bill-row,
.tip-row,
.split-row {
  width: 90%;
  margin-bottom: clamp(1rem, 3vh, 5rem);
}

.bill-row {
  margin-top: clamp(1rem, 3vh, 2.5rem);
}