.guide-body { min-width: 20rem; }
.guide-header__inner { min-height: var(--header-height); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 1.5rem; padding-block: .65rem; }
.guide-header nav { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; align-items: center; }
.guide-header nav a { display: inline-flex; align-items: center; min-height: 44px; font-family: var(--font-ui); font-size: var(--fs-small); text-underline-offset: .3em; }
.guide-header .button { min-height: 44px; padding: .75rem 1rem; font-size: var(--fs-small); }
.guide-intro { padding-block: clamp(2.5rem, 5vw, 4.5rem); background: var(--ink-deep); color: var(--on-dark); }
.guide-breadcrumb { margin-bottom: var(--space-lg); font-family: var(--font-ui); font-size: var(--fs-small); }
.guide-breadcrumb ol { display: flex; flex-wrap: wrap; gap: .5rem 1rem; padding: 0; margin: 0; list-style: none; }
.guide-breadcrumb a { display: inline-flex; align-items: center; min-height: 44px; text-underline-offset: .25em; }
.guide-breadcrumb [aria-current] { display: inline-flex; align-items: center; color: var(--on-dark-muted); }
.guide-intro h1 { max-width: 18ch; font-size: clamp(2.6rem, 4.8vw, 4.5rem); letter-spacing: -.04em; line-height: 1.08; }
.guide-intro h1 em { color: var(--green); font-style: normal; }
.guide-lead { margin: var(--space-md) 0 var(--space-lg); max-width: 57ch; color: var(--on-dark-muted); font-size: var(--fs-lead); }
.guide-layout { display: grid; grid-template-columns: 11rem minmax(0, 50rem); gap: clamp(2rem, 5vw, 4rem); padding-block: var(--space-2xl); align-items: start; }
.guide-toc { position: sticky; top: calc(var(--header-height) + 1.5rem); font-family: var(--font-ui); font-size: var(--fs-small); }
.guide-toc strong { display: block; margin-bottom: .75rem; }
.guide-toc nav { display: grid; border-top: 1px solid var(--line); }
.guide-toc a { display: flex; align-items: center; min-height: 44px; padding-block: .6rem; border-bottom: 1px solid var(--line); color: var(--muted); line-height: 1.45; text-decoration: none; }
.guide-toc a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: .25em; }
.guide-content { min-width: 0; font-family: var(--font-ui); }
.guide-content section + section { margin-top: var(--space-3xl); }
.guide-content h2 { max-width: 26ch; margin-bottom: var(--space-md); font-family: var(--font-display); letter-spacing: -.03em; }
.guide-content h3 { margin: var(--space-xl) 0 .6rem; font-size: 1.125rem; font-family: var(--font-display); }
.guide-content p, .guide-content li { max-width: 70ch; }
.guide-content p { color: var(--muted); }
.guide-content ul, .guide-content ol { padding-left: 1.4rem; margin: var(--space-md) 0; }
.guide-content li { padding-left: .25rem; margin-bottom: .7rem; }
.guide-content li::marker { color: var(--muted); }
.guide-content li strong, .guide-content p strong { color: var(--ink); }
.guide-content a { text-underline-offset: .25em; }
.guide-content a:hover { text-decoration-thickness: 2px; }
.guide-layout a:focus-visible { outline-color: var(--ink); }
.guide-header a:focus-visible, .guide-intro a:focus-visible { outline-color: var(--green); }
.guide-figure { margin: var(--space-xl) 0; }
.guide-figure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.guide-figure figcaption { margin-top: .75rem; color: var(--muted); font-size: var(--fs-small); line-height: 1.6; }
.guide-note { padding: var(--space-md); margin-block: var(--space-lg); background: var(--paper-deep); border-top: 1px solid var(--line); }
.guide-note p { margin: .4rem 0 0; font-size: var(--fs-small); }
.guide-content code { padding: .1rem .3rem; background: var(--paper-deep); font-size: .9em; overflow-wrap: anywhere; }
.guide-questions details { border-bottom: 1px solid var(--line); padding-block: var(--space-sm); }
.guide-questions details:first-of-type { border-top: 1px solid var(--line); }
.guide-questions summary { cursor: pointer; min-height: 44px; display: list-item; align-content: center; font-weight: 600; padding-block: .5rem; }
.guide-questions details p { margin: .5rem 0; }
.guide-end { margin-top: var(--space-3xl); padding-block: var(--space-xl); border-top: 1px solid var(--line); }
.guide-end p { margin-top: var(--space-sm); }
.guide-end .button { color: var(--paper); }
.guide-footer .footer-inner { grid-template-columns: 1fr auto; }
.guide-footer nav { justify-content: flex-end; }
@media (max-width: 56rem) {
  .guide-layout { grid-template-columns: 1fr; padding-block: var(--space-xl); }
  .guide-toc { position: static; }
  .guide-toc nav { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1.5rem; }
  .guide-content section + section { margin-top: var(--space-2xl); }
}
@media (max-width: 40rem) {
  .guide-header__inner { gap: .25rem .75rem; }
  .guide-header nav { gap: .5rem; }
  .guide-header nav a:first-child { display: none; }
  .guide-header .button { padding-inline: .75rem; font-size: .75rem; }
  .guide-breadcrumb { margin-bottom: var(--space-md); }
  .guide-intro h1 { font-size: clamp(2.6rem, 10vw, 3.5rem); }
  .guide-content h2 { font-size: clamp(1.75rem, 6.5vw, 2.2rem); }
  .guide-figure { margin-inline: 0; }
  .guide-footer .footer-inner { grid-template-columns: 1fr; }
  .guide-footer nav { justify-content: flex-start; }
}