:root {
  --color-cta: #42ffe6;
  --color-cta-darker: #34b8b0;
  --color-dark: #222;
  --color-light: #fff;
  --color-light-darker: #cccccc;
}


html {
  scroll-behavior: smooth;
}

body {
  font-family: Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  margin: 0;
}


@media (width >=1000px) {
  body {
    font-size: 20px;
    line-height: 1.6;
  }

}

.cta-btn {
  border: none;
  background-color: var(--color-cta);
  color: var(--color-dark);
  padding: 20px;
  text-decoration: none;
  transition: all .2s ease-in-out;
  font-size: 20px;
  display: inline-block;

  &:hover {
    background-color: var(--color-cta-darker);
    color: var(--color-dark);
  }
}

img {
  max-width: 100%;
  height: auto;
}

header {
  background-color: var(--color-dark);
  color: var(--color-light);
  padding: 15px;
  display: flex;
  flex-direction: column;
}

@media (width >=1000px) {
  header {
    padding: 30px;
  }
}

header h1 {
  margin-top: 0;
}

@media (width >=1000px) {
  .headline-name {
    font-size: 1.5em;
  }

  .headline-tagline {
    font-size: .75em;
  }
}

header h1 span,
footer h2 span {
  display: block;
}

header a {
  color: var(--color-light);
  text-decoration: none;
  transition: color .2s ease-in-out;

  &:hover {
    color: var(--color-light-darker);
  }
}

header ul {
  display: flex;

  flex-direction: column;
  list-style-type: none;
  gap: 20px;
  padding: 0;
}

header ul li:not(:last-child) {
  display: none;
}

@media (width >=1000px) {
  header ul {
    flex-direction: row;
    align-items: center;
  }

  header ul li:not(:last-child) {
    display: block;
  }

  header ul li:last-child {
    margin-left: auto;
  }
}

header nav {
  padding: 30px;
  max-width: 1000px;
  width: 80vw;
  margin: 0 auto;
}

main {
  padding: 30px;
  max-width: 1000px;
  width: 80vw;
  margin: 0 auto;
}

main a {
  color: var(--color-dark);
}

section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 50px;
  padding: 30px 0;
}

@media (width >=1000px) {
  section {
    padding: 100px 0;
  }

}

section:not(:first-child) {
  border-top: 1px solid var(--color-dark);
}

@media (width >=1000px) {
  section {
    grid-template-columns: 1fr 1fr;
  }
}

textarea,
input[type=email],
input[type=text] {
  display: block;
  width: 100%;
  padding: 10px;
  font-size: 16px;
  margin: 20px 0;
  font-family: Helvetica, Arial, sans-serif;
}

fieldset {
  border: none;
  padding-left: 0;
}

footer {
  background-color: var(--color-dark);
  color: var(--color-light);
  padding: 30px;
}

footer ul {
  list-style-type: none;
  padding: 0;
}

footer nav {
  display: flex;
  flex-direction: column;
}


@media (width >=1000px) {
  footer nav {
    flex-direction: row;
    justify-content: space-between;
  }
}