* {
  box-sizing: border-box;
}

html {
  font-size: 100%;
}

body {
  margin: 0;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: #444846;
  background: #FAFAFA;
  overflow-wrap: break-word;
}

header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
  max-width: 80rem;
  margin-inline: auto;
  padding: 1.5rem 2rem;
}

header img {
  display: block;
  height: 44px;
  width: auto;
  max-width: 100%;
  justify-self: start;
}

.logo-dark {
  display: none;
}

nav {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  justify-content: center;
  font-size: 0.875rem;
}

a {
  color: #444846;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
}

.hero {
  padding-block: 9rem 10rem;
  padding-inline: 1.5rem;
  text-align: center;
}

h1 {
  max-width: 15em;
  margin: 0;
  margin-inline: auto;
  font-size: clamp(2.125rem, 6vw, 4.25rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.025em;
  text-align: center;
  color: #444846;
}

#overview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: 3rem;
  max-width: 64rem;
  margin-inline: auto;
  padding: 3rem 2rem 6rem;
  border-top: 1px solid #D7DBDA;
}

h2 {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: #6B7280;
}

p {
  margin: 0;
}

footer {
  max-width: 64rem;
  margin-inline: auto;
  padding: 2rem;
  text-align: center;
  font-size: 0.875rem;
  color: #6B7280;
}

@media (prefers-color-scheme: dark) {
  body {
    color: #D7DBDA;
    background: #111111;
  }

  a,
  h1 {
    color: #D7DBDA;
  }

  h2,
  footer {
    color: #8E969B;
  }

  #overview {
    border-top-color: #444846;
  }

  .logo-light {
    display: none;
  }

  .logo-dark {
    display: block;
  }
}

@media (max-width: 640px) {
  header {
    grid-template-columns: 1fr;
    padding: 1.25rem;
  }

  header img {
    height: 40px;
  }

  nav {
    justify-content: flex-start;
    justify-self: start;
    gap: 0.5rem 1.5rem;
    margin-top: 1rem;
  }

  .hero {
    padding-block: 5rem 6rem;
    padding-inline: 1.25rem;
  }

  #overview {
    grid-template-columns: 1fr;
    row-gap: 2.5rem;
    padding: 2.5rem 1.25rem 4rem;
  }
}