main {
  margin: 0 25px;
  text-align: center;
}

main section.introduction {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

main section.btns {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 15px 0 100px;
}

main section.btns a.redirect {
  margin: 10px;
  border: 5px outset var(--color-v3);
  border-radius: 10px;
  background-color: var(--color-v5);
  width: 150px;
  height: 40px;
  color: var(--color-v1);
  font: bold 15px var(--manrope-font);
  cursor: pointer;
  transition: all 0.3s ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
}

main section.introduction h2 {
  margin: 25px 13px 0 0;
  color: var(--color-v1);
  font-size: 1.2em;
}

main section.introduction h1 {
  font: bold 1.5em var(--poppins-font);
  color: var(--color-v1);
  margin: 0 10px 0 0;
}

main section.introduction p {
  font: normal 0.8em var(--poppins-font);
  color: var(--color-v4);
  margin: 10px 10px 0 0;
}


main section.btns a.redirect:hover {
  border: 3px outset var(--color-v6);
  background-color: var(--color-v7);
  font-size: 16px;
}

footer {
  width: 100%;
  display: flex;
  background-color: var(--color-v5);
  justify-content: center;
  align-items: center;
}



@media screen and (min-width: 480px) {
  header h1 {
    font-size: 2.5em;
  }

  main section.introduction h2 {
    font-size: 1.5em;
  }

  main section.introduction h1 {
    font-size: 1.8em;
  }

  main section.introduction p {
    font-size: 0.9em;
  }

  footer {
    position: absolute;
    bottom: 0;
  }
}

@media screen and (min-height: 720px) {
  main {
    margin: 25px 0;
  }

  main section.btns {
    margin: 50px 0;
  }
}

@media screen and (min-width: 768px) {
  header h1 {
    font-size: 2.7em;
  }

  main section.introduction h2 {
    font-size: 1.8em;
  }

  main section.introduction h1 {
    font-size: 2.2em;
  }

  main section.introduction p {
    font-size: 1.1em;
  }

  main section.btns {
    flex-direction: row;
    justify-content: center;
  }
}

@media screen and (min-width: 1200px) {
  main section.introduction h2 {
    font-size: 3em;
  }

  main section.introduction h1 {
    font-size: 3.5em;
  }

  main section.introduction p {
    font-size: 1.35em;
  }

  main section.btns a.redirect {
    margin: 15px;
    width: 250px;
    height: 55px;
  }
}