.body-levels { margin: 1.5rem 0 2rem; }
.body-levels > div { padding: 1rem; margin-bottom: .75rem; border-left: 4px solid var(--night); background: #e3efea; }
.body-levels dt { font-weight: 800; }
.body-levels dd { margin: .4rem 0 0; line-height: 1.7; }
.rich-copy .body-anatomy { margin: 1.5rem 0 2rem; padding: 1rem; border: 1px solid var(--line); background: #fff; }
.body-anatomy img { display: block; width: 100%; max-width: 720px; height: auto; margin: auto; }
.rich-copy .body-anatomy figcaption { margin-top: 1rem; font-size: 1rem; line-height: 1.65; }
.body-anatomy .body-image-credit { display: block; margin-top: .5rem; font-size: .9rem; }
.body-functions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin: 1.5rem 0 2rem; }
.rich-copy .body-function { min-width: 0; margin: 0; padding: 1rem; border: 1px solid var(--line); background: var(--paper); }
.rich-copy .body-function h3 { margin: 0 0 .75rem; font-size: 1.1rem; line-height: 1.5; }
.rich-copy .body-function p { margin: 0 0 .75rem; font-size: 1rem; line-height: 1.7; }
.rich-copy .body-check { margin: 1.25rem 0 2rem; padding: 1rem; border-left: 4px solid var(--night); background: var(--yellow-soft); }
.rich-copy .body-check p { margin: 0 0 .75rem; }
.rich-copy .body-check details { margin: 0; }
.body-check summary { min-height: 44px; padding: .5rem 0; cursor: pointer; font-weight: 800; }
.body-check summary:focus-visible { outline: 3px solid var(--night); outline-offset: 3px; }
.rich-copy .body-credit { margin-top: 2rem; font-size: .9rem; }
@media (max-width: 650px) {
  .body-functions { grid-template-columns: minmax(0, 1fr); }
  .rich-copy .body-anatomy { padding: .5rem; }
}