/* How-to page: sticky contents menu, numbered steps with screenshots. Uses the shared design tokens. */
.howto-hero { padding-block: 3rem 1.5rem; }
.howto-hero > * { max-width: 46rem; }
.howto-hero > .home-actions { max-width: none; }
.howto-hero > h1 { max-width: none; }
.howto-hero h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); line-height: 1.12; letter-spacing: -.03em; margin: .25rem 0 1rem; }
.howto-hero .home-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.25rem; margin-top: 1.5rem; }
.howto-note { color: var(--gv-ink-soft); font-size: .95rem; }

.howto-paths { padding-block: 1rem 2rem; }
.howto-paths h2 { font-size: 1.25rem; margin: 0 0 1rem; }
.howto-path-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); gap: 1rem; list-style: none; padding: 0; margin: 0; }
.howto-path { border: 1px solid var(--gv-line); border-radius: 16px; background: var(--gv-surface); padding: 1.25rem; display: flex; flex-direction: column; gap: .5rem; }
.howto-path h3 { margin: 0; font-size: 1.05rem; }
.howto-path p { margin: 0; color: var(--gv-ink-soft); line-height: 1.6; }
.howto-path .gv-link { margin-top: auto; padding-top: .5rem; font-weight: 700; display: inline-flex; align-items: center; gap: .4rem; }

.howto-layout { display: grid; grid-template-columns: 16rem minmax(0, 1fr); gap: 3rem; align-items: start; padding-block: 1rem 3rem; }
.howto-toc { position: sticky; top: 5.25rem; max-height: calc(100vh - 6.5rem); overflow-y: auto; font-size: .92rem; padding-right: .5rem; }
.howto-toc__title { text-transform: uppercase; letter-spacing: .12em; font-size: .72rem; font-weight: 800; color: var(--gv-brand); margin: 0 0 .75rem; }
.howto-toc ol { list-style: none; margin: 0; padding: 0; }
.howto-toc > ol > li { margin-bottom: 1rem; }
.howto-toc > ol > li > a { font-weight: 800; color: var(--gv-ink); text-decoration: none; display: block; padding: .25rem 0; }
.howto-toc ol ol { border-left: 2px solid var(--gv-line); margin-left: .25rem; }
.howto-toc ol ol a { display: block; padding: .3rem .75rem; color: var(--gv-ink-soft); text-decoration: none; line-height: 1.35; }
.howto-toc a:hover, .howto-toc a:focus-visible { color: var(--gv-brand); }
.howto-toc a:focus-visible, .howto-step a:focus-visible { outline: 3px solid var(--gv-brand); outline-offset: 3px; border-radius: 4px; }

.howto-content { min-width: 0; }
.howto-part { margin-bottom: 4rem; scroll-margin-top: 5.25rem; }
.howto-part > header h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.2; margin: 0 0 .5rem; }
.howto-part__intro { color: var(--gv-ink-soft); font-size: 1.05rem; line-height: 1.7; margin: 0 0 2rem; max-width: 46rem; }
.howto-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 3rem; }
.howto-step { scroll-margin-top: 5.25rem; min-width: 0; }
.howto-step__head { display: flex; align-items: center; gap: 1rem; margin-bottom: .75rem; }
.howto-step__num { flex: 0 0 auto; width: 2.6rem; height: 2.6rem; border-radius: 50%; background: var(--gv-brand); color: #fff; font-weight: 800; display: grid; place-items: center; }
.howto-step__label { margin: 0; text-transform: uppercase; letter-spacing: .1em; font-size: .72rem; font-weight: 800; color: var(--gv-ink-soft); }
.howto-step h3 { margin: 0; font-size: 1.3rem; line-height: 1.25; }
.howto-step__body { margin: 0 0 1rem; line-height: 1.75; max-width: 46rem; }
.howto-tip { margin: 0 0 1rem; padding: .85rem 1rem; max-width: 46rem; border-left: 4px solid var(--gv-brand); background: var(--gv-brand-tint); border-radius: 0 10px 10px 0; line-height: 1.65; }
.howto-tip strong { display: block; font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--gv-brand); margin-bottom: .15rem; }
.howto-part__action { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1.25rem; margin-top: 2.5rem; padding: 1.25rem 1.5rem; border: 1px solid var(--gv-line); border-radius: 16px; background: var(--gv-surface); }
.howto-part__action .gv-btn { gap: .5rem; }
.howto-shot { margin: 0; }
.howto-shot img { display: block; width: 100%; height: auto; border: 1px solid var(--gv-line); border-radius: 14px; box-shadow: 0 10px 30px rgba(31, 42, 36, .1); background: var(--gv-surface); }

@media (max-width: 900px) {
  .howto-layout { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
  /* The contents menu becomes a compact block above the steps instead of a sticky sidebar. */
  .howto-toc { position: static; max-height: none; overflow: visible; border: 1px solid var(--gv-line); border-radius: 14px; background: var(--gv-surface); padding: 1rem 1.1rem; }
  .howto-toc ol ol { display: none; }
  .howto-toc > ol { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: .25rem 1rem; }
  .howto-toc > ol > li { margin: 0; }
  .howto-hero { padding-top: 2rem; }
}
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }