style.css

body {
	background: hsl(60, 100%, 50%)
		repeating-conic-gradient(
			from 45deg at 66% calc(100vh + 80px),
			hsl(60, 100%, 50%) 0 5deg,
			hsl(57, 100%, 50%) 0 10deg
		);
	background-size: 100vw 100vh;
}

html {
  font-size: 4vw;
  font-family: sans-serif;
}
@media only screen and (min-width: 400px) {
  html {
    font-size: 3vw;
  }
}
@media only screen and (min-width: 600px) {
  html {
    font-size: 2vw;
  }
}
@media only screen and (min-width: 900px) {
  html {
    font-size: 1.5vw;
  }
}

body {
  margin: 2rem;
}

label {
  display: block;
  font-weight: bold;
}

input {
  display: block;
  width: 100%;
  margin-top: 0.5rem;
}

.input-grid {
  display: grid;
  grid-gap: 15px;
  grid-template-columns: 1fr;
  padding: 1rem;
  border: solid 3px #ccc;
  border-radius: 1rem;
}
@media only screen and (min-width: 400px) {
  .input-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}
@media only screen and (min-width: 900px) {
  .input-grid {
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
  }
}

.graph-item {
  width: 100%;
  position: relative;
  margin: 0.5rem 0;
}
.graph-item span {
  margin: 0 1rem;
}
.graph-item .graph-cost {
  font-size: 2rem;
  line-height: 4rem;
  color: white;
  width: 0%;
  background: #f9c400;
  border-radius: 1rem;
  text-shadow: 0 0 0.3rem rgba(0, 0, 0, 0.5);
}
.graph-item .graph-cost-electric {
  background: #66cc00;
}
.graph-item .graph-cost-savings {
  background: #0066ff;
}
.graph-item .graph-title {
  font-size: 1.2rem;
  margin-bottom: 0.2rem;
}

.visual {
  margin-bottom: 3rem;
}

.graph-item-right {
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}
.graph-item-right .graph-cost span {
  float: right;
}

p {
  font-size: 1rem;
  font-style: italic;
}