html, body {
  width: 100%;
  min-height: 100vh;
  margin: 0;
  font-family: arial, sans-serif;
}
section {
  padding: 3rem max((100% - 600px) / 2, 2rem) 5rem;
}
h2 { font-size: clamp(1.3rem, 10vw - 1.3rem, 2rem); }
a {
  color: #006FE4;
  text-decoration: none;
  &:hover { text-decoration: underline; }
}

#hero {
  padding: 0 max((100% - 1200px) / 2 + 2rem, 2rem) 2rem;
  color: white;
  background-color: #1B262E;
  #navigation-menu {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    min-height: 3rem;
    padding-block: 1rem;
    img {
      display: block;
      width: auto;
      height: 2rem;
    }
  }
  #welcome {
    display: flex;
    gap: 2rem;
    align-items: center;
    p {
      margin: 0;
      font-size: 1.25rem;
    }
  }
  h1 {
    width: min(100%, 600px);
    margin: 6rem auto 0;
    color: white;
    font-size: clamp(3rem, 6.7vw - 1rem, 4rem);
  }
}

#purchase {
  h3 {
    margin-top: 0;
    font-size: 1.2rem;
  }
  form {
    padding: 2rem;
    margin: 4rem 0;
    background: #fbf9f2;
    border: 1px solid #d9c084;
    border-radius: .5rem;
  }
  button {
    display: inline-block;
    padding: 1em 2em;
    margin-top: 2.5rem;
    color: black;
    background-color: #d9c084;
    border: none;
    border-radius: .4rem;
    font-weight: 900;
    font-size: 1.125rem;
    font-family: inherit;
    text-decoration: none;
    transition: opacity .2s;
    cursor: pointer;
    &:hover { opacity: .85; }
  }
}