:root {
  --Light-Cyan: hsl(193, 38%, 86%);
  --Neon-Green: hsl(150, 100%, 66%);
  --Grayish-Blue: hsl(217, 19%, 38%);
  --Dark-Grayish-Blue: hsl(217, 19%, 24%);
  --Dark-Blue: hsl(218, 23%, 16%);
}
* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}
body {
  background-color: var(--Dark-Blue);
  font-family: "Manrope", sans-serif;
  min-height: 100vh;
  display: grid;
  justify-content: center;
  align-content: center;
}

main {
  background-color: var(--Dark-Grayish-Blue);
  width: 530px;
  text-align: center;
  padding: 40px 40px 60px;
  border-radius: 15px;
  position: relative;
}
h1 {
  color: var(--Neon-Green);
  font-size: 16px;
  letter-spacing: 5px;
}
q {
  font-size: 28px;
  color: var(--Light-Cyan);
  padding: 30px 0;
  display: block;
}
img.mobile {
  display: none;
}
button {
  border: none;
  background-color: var(--Neon-Green);
  cursor: pointer;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  right: 50%;
  transform: translate(50%, 50%);
  transition: .3s;
}
button:hover {
  box-shadow: 0px 0px 30px 2px var(--Neon-Green);
}
footer {
  font-size: 12px;
  position: absolute;
  color: var(--Light-Cyan);
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  opacity: .8;
}
footer a {
  color: var(--Neon-Green);
  text-decoration: none;
}

@media (max-width: 550px) {
  main {
    width: 460px;
    padding: 30px 30px 60px;
  }
  img.desktop {
    display: none;
  }
  img.mobile {
    display: block;
    margin: auto;
  }
}
@media (max-width: 470px) {
  main {
    width: 400px;
    padding: 20px 20px 60px;
  }
  q {
    font-size: 25px;
  }
}
@media (max-width: 410px) {
  main {
    width: 350px;
  }
}