:root {
  --Cyan: hsl(179, 62%, 43%);
  --Bright-Yellow: hsl(71, 73%, 54%);
  --Light-Gray: hsl(204, 43%, 93%);
  --Grayish-Blue: hsl(218, 22%, 67%);
}

body {
  font-family: "Karla", sans-serif;
  background: var(--Light-Gray);
}

.container {
  width: 40%;
  margin: 100px auto;
  background: white;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
}

.description {
  padding: 40px;
  font-size: 12px;
}

header {
  font-size: 11px;
  color: var(--Cyan);
}

.description > h2 {
  color: var(--Bright-Yellow);
  font-weight: bold;
}

.description > p {
  color: var(--Grayish-Blue);
  max-height: 50px;
  max-width: 500px;
  font-size: 14px;
}

section {
  display: flex;
}
.left-box {
  background: var(--Cyan);
  width: 50%;
  color: white;
  padding: 40px;
  border-radius: 0 0 0 10px;
}

.left-box > p > .cost {
  font-size: 25px;
  font-weight: bold;
  padding-right: 10px;
}

.left-box > h3 {
  font-size: 16px;
  padding-bottom: 10px;
}

.left-box > p > .duration {
  color: var(--Light-Gray);
  opacity: 0.7;
}

.left-box > .access {
  color: var(--Light-Gray);
  font-size: 14px;
  padding-bottom: 10px;
}

.left-box > .sign-up {
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--Bright-Yellow);
  width: 80%;
  height: 40px;
  border-radius: 5px;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
}

.right-box {
  width: 50%;
  color: white;
  background: var(--Cyan);
  opacity: 0.85;
  padding: 30px;
  border-radius: 0 0 10px 0;
}

.right-box > h3 {
  padding-top: 10px;
  font-size: 16px;
}

.right-box > .about {
  color: var(--Light-Gray);
  font-size: 13px;
  width: 180px;
  line-height: 20px;
}

footer {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* For mobile */

@media only screen and (max-width: 594px) {
  .container {
    padding-right: 30px;
    width: 65%;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
  }

  header {
    padding-bottom: 5px;
  }

  section {
    flex-direction: column;
  }

  .description {
    font-size: 10px;
  }

  .description > p {
    width: 270px;
    padding-bottom: 50px;
    line-height: 30px;
  }

  .left-box {
    width: 84%;
    border-radius: 0px;
  }

  .right-box {
    width: 90.5%;
    border-radius: 0 0 5px 5px;
  }
}