:root {
  --body-spacing: 0;
  --hero-width: 700px;
  --hero-nav-width: calc(var(--hero-width) / 2);
  --hero-section-width: calc((var(--hero-nav-width) / 2) - (var(--hero-section-border-width) / 2));
  --hero-section-border-width: 1px;
}

body {
  width: 100vw;
  height: 100vh;

  display: grid;
  place-items: center;
}

main.hero {
  display: grid;
  place-items: center;
}

main.hero>img {
  height: 33vh;
  width: 66vw;
}

main.hero>nav {
  width: calc(700px / 2);
}

main.hero>nav section {
  display: block;
  margin-left: 1rem;
}

main.hero>nav section+section {
  margin-top: 15px;
}

main.hero>nav section.left {
  margin-right: var(--hero-section-width);
  text-align: end;

  padding-right: 15px;
  border-right: var(--hero-section-border-width) solid var(--fg);
}

main.hero>nav section.right {
  margin-left: var(--hero-section-width);
  text-align: start;

  padding-left: 15px;
  border-left: var(--hero-section-border-width) solid var(--fg);
}

main.hero>nav ul {
  padding-left: 0;
  margin: 0;
}

main.hero>nav li+li {
  margin-top: 5px;
}