/* =============================================================================
   04-layout.css — shell (section) + container (content column). Tokens in 01.
   ============================================================================= */

/* Shell — full-width section. Background and block spacing live in block CSS. */
.shell {
  width: 100%;
}

/* Container — centered content column. One preset: width-content (1300px). */
.container {
  width: 100%;
  max-width: var(--width-content);
  margin-inline: auto;
}