@layer frame {
  body > a:first-child { position: absolute; z-index: 10; left: 1rem; top: .5rem; transform: translateY(-160%); background: var(--mark); padding: .75rem 1rem; }
  body > a:first-child:focus { transform: translateY(0); }
  body > header, main, body > footer { width: min(100% - 4rem, 1280px); margin-inline: auto; }
  body > header { display: flex; justify-content: space-between; align-items: flex-start; gap: 2rem; padding-block: 2rem; border-bottom: 2px solid var(--ink); }
  body > header p { margin: 0; }
  body > header p:first-child { max-width: 28ch; }
  main > header { padding-block: 7rem 8rem; }
  main > header > p:first-child { margin: 0; }
  main > header > div { max-width: 65ch; }
  #field-guide > header, #cost-notes > header { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 0 5rem; align-items: end; }
  #field-guide > header > p, #field-guide h1, #cost-notes > header > p, #cost-notes h1 { grid-column: 1 / -1; }
  main > header figure { align-self: end; }
  figure > div { position: relative; aspect-ratio: 1; border: 2px solid var(--ink); background: var(--paper); isolation: isolate; }
  figure > div::before { content: ""; position: absolute; inset: 18% 21%; border: 3px solid var(--ink); background: var(--paper); transform: rotate(-7deg); z-index: -1; }
  figure > div::after { content: ""; position: absolute; width: 38%; height: 19%; border-left: 16px solid var(--ink); border-bottom: 16px solid var(--ink); transform: rotate(-45deg); top: 36%; left: 33%; z-index: -1; }
  figure img { width: 100%; aspect-ratio: 1; object-fit: contain; }
  #cost-notes figure > div { aspect-ratio: 1.5; }
  #cost-notes figure img { aspect-ratio: 1.5; }
  #cost-notes figure > div::after { border: 0; transform: none; width: 13%; height: 36%; top: 38%; left: 38%; background: var(--ink); box-shadow: -60px 24px 0 var(--ink), 60px -30px 0 var(--mark); }
  figcaption { padding-top: 1rem; max-width: 35ch; }
  main > aside { margin-block: 8rem; padding-block: 2rem; border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink); }
  main > aside > a { font-family: "Exo 2", system-ui, sans-serif; font-size: clamp(1.5rem, 3vw, 2.5rem); font-weight: 900; line-height: 1.2; padding-block: 1rem; }
  body > footer { padding-block: 4rem 3rem; border-top: 2px solid var(--ink); }
  footer > p:first-child { max-width: 50ch; margin-bottom: 2rem; }
  footer nav ul { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 0; list-style: none; gap: 0 2rem; }
  footer nav li { margin: 0; min-width: 0; }
  footer nav a { display: flex; border-bottom: 1px solid var(--ink); padding-block: 1rem; }
  footer nav a[aria-current="page"] { font-weight: 700; text-decoration-style: double; }
  footer > p:last-child { margin-top: 2rem; margin-bottom: 0; }
  @media (max-width: 720px) {
    body > header, main, body > footer { width: calc(100% - 2.5rem); }
    body > header { padding-block: 1.25rem; gap: 1rem; }
    body > header p { max-width: 18ch; }
    body > header p:last-child { max-width: 13ch; text-align: right; }
    main > header { padding-block: 3.5rem 5rem; }
    #field-guide > header, #cost-notes > header { grid-template-columns: minmax(0, 1fr); gap: 2.5rem; }
    #field-guide > header > p, #cost-notes > header > p { margin-bottom: -2rem; }
    #field-guide h1, #cost-notes h1 { margin-bottom: 0; }
    main > header figure { width: min(100%, 22rem); margin-top: .5rem; }
    main > aside { margin-block: 5rem; }
    footer nav ul { grid-template-columns: minmax(0, 1fr); }
    body > footer { padding-top: 3rem; }
  }
}