:root {
  --cyan: hsl(179, 62%, 43%);
  --cyan-o: hsla(179, 62%, 43%, 0.733);
  --b-yellow: hsl(71, 73%, 54%);
  --l-gray: hsl(204, 43%, 93%);
  --g-blue: hsl(218, 22%, 67%);
  --font: 'Karla', sans-serif;

}

html {
  font-size: 62.5%;
}
body {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  background-color: var(--l-gray);
  font-family: var(--font);
  height: 100vh;
  display: grid;
  place-content: center;
}
.grid-container {
  display: grid;
  place-content: center;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: 20rem 24rem;
  max-width: 60rem;
  margin: 0 auto;
  transition: margin 1000ms, display 1000ms;
  border-radius: 1rem;
  overflow: hidden;
}
.grid-container section {
  padding: 3rem 3.8rem;
}
.span {
  grid-column: 1 / -1;
  background-color: white;
}
.community-heading {
  color: var(--cyan);
  font-size: 2rem;
}
.community-sub-head {
  color: var(--b-yellow);
}
.community-text {
  color: var(--g-blue);
  font-size: 1.5rem;
  line-height: 1.5;
}
.primary {
  background-color: var(--cyan);
}
.primary, .secondary {
  color: white;
}
.secondary {
  background-color: var(--cyan-o);
}
.price-line {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.658);
}
.price {
  font-size: 3rem;
  color: white;
  font-weight: bold;
}
.sub-text {
  font-size: 1.4rem;
  font-weight: 400;
}
.CTA-sign-up {
  background-color: var(--b-yellow);
  border: none;
  color: white;
  display: inline-block;
  width: 100%;
  height: 4.4rem;
  border-radius: .4rem;
  font-weight: 700;
  margin-top: 1rem;
  cursor: pointer;
  transition: 400ms background-color, 400ms color;
  position: relative;
}
.CTA-sign-up:hover {
  background-color: rgba(151, 151, 151, 0.699);
  color: var(--b-yellow);
}

.why-text {
  font-size: 1.3rem;
  line-height: 1.8;
}

@media (max-width: 580px) {
  .grid-container {
    display: block;
    margin: 4rem 4rem;
  }
}