/* ============================================================
   Field Notes — listing-screen components (Trailhead, Trails,
   Library). Namespaced .fn-* so it never collides with the
   legacy index.css classes still used by archives/tags/trail.
   ============================================================ */

.fn-page { max-width: 1200px; margin: 0 auto; padding: 0 28px 96px; }

.fn-kicker {
  font-family: var(--mono); font-size: 11.5px; font-weight: 700;
  letter-spacing: .2em; text-transform: uppercase; color: var(--blaze);
}
.fn-h1 {
  font-family: var(--serif); font-weight: 600; letter-spacing: -.02em;
  color: var(--text-bright); line-height: 1.04;
}
.fn-lede {
  font-family: var(--serif); font-size: 18px; line-height: 1.55;
  color: var(--text); max-width: 58ch;
}

/* ── Hero ── */
.fn-hero {
  position: relative; overflow: hidden; border-bottom: 1px solid var(--border);
  margin: 0 -28px; padding: 64px 28px 52px;
  background-image: repeating-radial-gradient(circle at 86% -8%, var(--contour) 0 1.1px, transparent 1.1px 27px);
}
.fn-hero__inner { max-width: 1144px; margin: 0 auto; }
.fn-hero .fn-h1 { font-size: clamp(38px, 5vw, 62px); margin: 18px 0 0; max-width: 16ch; }
.fn-hero__lede { font-family: var(--serif); font-size: 19px; line-height: 1.55; color: var(--text); max-width: 54ch; margin: 20px 0 0; }
.fn-stats { display: flex; gap: 26px; flex-wrap: wrap; margin-top: 30px; font-family: var(--mono); font-size: 12.5px; color: var(--text-muted); }
.fn-stats strong { color: var(--text-bright); font-weight: 700; }

.fn-section { padding: 52px 0 0; }
.fn-section__head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.fn-section__head h2 { font-family: var(--serif); font-weight: 600; font-size: 27px; color: var(--text-bright); margin: 9px 0 0; letter-spacing: -.01em; }
.fn-section__note { font-family: var(--grotesk); font-size: 13.5px; color: var(--text-muted); max-width: 34ch; margin: 0; }
.fn-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 40px; align-items: start; }

/* ── Start Here personas (details/summary accordion) ── */
.fn-start { display: flex; flex-direction: column; gap: 12px; margin-top: 22px; }
.fn-persona { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; transition: border-color .18s ease; }
.fn-persona[open], .fn-persona:hover { border-color: var(--border-strong); }
.fn-persona__summary {
  list-style: none; display: flex; align-items: center; gap: 18px; cursor: pointer;
  padding: 18px 20px; color: var(--text); transition: background .18s ease;
}
.fn-persona__summary::-webkit-details-marker { display: none; }
.fn-persona__summary:hover { background: var(--blaze-soft); }
.fn-persona__num {
  flex: none; width: 46px; height: 46px; border-radius: 10px; background: var(--bg-sunken);
  border: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 17px; font-weight: 700; color: var(--blaze);
}
.fn-persona__main { flex: 1; min-width: 0; }
.fn-persona__title { font-family: var(--serif); font-size: 21px; font-weight: 600; color: var(--text-bright); letter-spacing: -.01em; }
.fn-persona__blurb { font-family: var(--grotesk); font-size: 13.5px; color: var(--text-muted); margin-top: 3px; }
.fn-persona__aside { flex: none; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.fn-persona__meta { font-family: var(--mono); font-size: 12px; color: var(--text); white-space: nowrap; }
.fn-chev { font-family: var(--mono); font-size: 11px; color: var(--blaze); transition: transform .2s ease; }
.fn-persona[open] .fn-persona__aside .fn-chev { transform: rotate(90deg); }
.fn-persona__body { padding: 6px 22px 22px 84px; border-top: 1px solid var(--border); }
.fn-steps { list-style: none; margin: 14px 0 0; padding: 0; position: relative; }
.fn-steps::before { content: ""; position: absolute; left: 4px; top: 14px; bottom: 14px; width: 2px; background: linear-gradient(var(--blaze), var(--border)); opacity: .5; }
.fn-step { display: flex; align-items: center; gap: 14px; padding: 9px 0; position: relative; }
.fn-step::before { content: ""; flex: none; width: 9px; height: 9px; border-radius: 50%; background: var(--bg-card); border: 2px solid var(--blaze); box-shadow: 0 0 0 4px var(--bg-card); z-index: 1; }
.fn-step a { flex: 1; font-family: var(--serif); font-size: 16.5px; color: var(--text); text-decoration: underline; text-decoration-color: var(--border-strong); text-underline-offset: 3px; text-decoration-thickness: 1px; }
.fn-step a:hover { color: var(--blaze); text-decoration-color: var(--blaze); }
.fn-step__min { font-family: var(--mono); font-size: 12px; color: var(--text-muted); white-space: nowrap; }

/* ── Latest trails list ── */
.fn-tlist { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
.fn-tlist__item { display: flex; align-items: center; gap: 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 11px; padding: 15px 16px; text-decoration: none; color: var(--text); transition: border-color .15s ease; }
.fn-tlist__item:hover { border-color: var(--border-strong); text-decoration: none; }
.fn-tlist__cat { font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: .14em; color: var(--text-muted); text-transform: uppercase; }
.fn-tlist__name { font-family: var(--serif); font-size: 18px; font-weight: 600; color: var(--text-bright); margin-top: 3px; letter-spacing: -.01em; }
.fn-tlist__meta { font-family: var(--mono); font-size: 11.5px; color: var(--text-muted); margin-top: 4px; }

/* ── Featured cairn ── */
.fn-featured { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 28px; margin-top: 18px; box-shadow: var(--shadow); position: relative; overflow: hidden; background-image: repeating-radial-gradient(circle at 108% -20%, var(--contour) 0 1px, transparent 1px 24px); }
.fn-featured__trail { font-family: var(--mono); font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .08em; }
.fn-featured__title { font-family: var(--serif); font-weight: 600; font-size: 29px; line-height: 1.1; letter-spacing: -.015em; color: var(--text-bright); margin: 8px 0 0; }
.fn-featured__meta { font-family: var(--mono); font-size: 12px; color: var(--text-muted); margin-top: 12px; display: flex; gap: 14px; flex-wrap: wrap; }
.fn-featured__meta .read { color: var(--blaze); }
.fn-featured__desc { font-family: var(--serif); font-size: 17px; line-height: 1.65; margin: 18px 0 0; color: var(--text); }
.fn-featured__cta { display: inline-flex; align-items: center; gap: 8px; font-family: var(--grotesk); font-size: 14px; font-weight: 600; color: var(--blaze); text-decoration: none; margin-top: 22px; }
.fn-featured__cta:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ── House-style callouts ── */
.fn-callouts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; }
.fn-callout { background: var(--bg-card); border: 1px solid var(--border); border-left: 3px solid var(--c, var(--blaze)); border-radius: 0 9px 9px 0; padding: 14px 15px; }
.fn-callout__label { font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: .16em; color: var(--c, var(--blaze)); }
.fn-callout__text { font-family: var(--serif); font-size: 14.5px; line-height: 1.5; color: var(--text); margin-top: 7px; }

/* ── Recent ── */
.fn-recent { margin-top: 18px; border-top: 1px solid var(--border); }
.fn-recent__item { display: flex; align-items: baseline; gap: 14px; padding: 14px 6px; border-bottom: 1px solid var(--border); text-decoration: none; color: var(--text); border-radius: 6px; }
.fn-recent__item:hover { background: var(--blaze-soft); text-decoration: none; }
.fn-recent__title { font-family: var(--serif); font-size: 16.5px; color: var(--text-bright); }
.fn-recent__path { display: block; font-family: var(--mono); font-size: 11px; color: var(--text-muted); margin-top: 3px; }
.fn-recent__date { flex: none; font-family: var(--mono); font-size: 11.5px; color: var(--text-muted); white-space: nowrap; }
.fn-recent__read { flex: none; font-family: var(--mono); font-size: 11.5px; color: var(--blaze); white-space: nowrap; }

/* ── Page heading (Trails / Library) ── */
.fn-pagehead { padding: 48px 0 0; }
.fn-pagehead .fn-h1 { font-size: 40px; margin: 10px 0 0; }
.fn-pagehead .fn-lede { margin: 14px 0 0; }

/* ── Trails ── */
.fn-cross { margin-top: 34px; background: var(--bg-card); border: 1px solid var(--pine-deep); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); position: relative; background-image: repeating-radial-gradient(circle at 96% -30%, var(--pine-soft) 0 1px, transparent 1px 26px); }
.fn-cross__inner { display: flex; flex-wrap: wrap; gap: 30px; padding: 30px 32px; align-items: center; }
.fn-cross__body { flex: 1; min-width: 300px; }
.fn-cross__badge { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 10.5px; font-weight: 700; letter-spacing: .16em; color: var(--pine); background: var(--pine-soft); border: 1px solid var(--pine-deep); border-radius: 20px; padding: 5px 12px; text-transform: uppercase; }
.fn-cross__title { font-family: var(--serif); font-weight: 600; font-size: 32px; letter-spacing: -.015em; color: var(--text-bright); margin: 16px 0 0; }
.fn-cross__desc { font-family: var(--serif); font-size: 16.5px; line-height: 1.6; color: var(--text); margin: 12px 0 0; max-width: 52ch; }
.fn-cross__meta { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 18px; font-family: var(--mono); font-size: 12px; color: var(--text-muted); }
.fn-cross__meta strong { color: var(--pine); font-weight: 700; }
.fn-cross__aside { flex: none; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.fn-cross__cta { font-family: var(--grotesk); font-size: 13.5px; font-weight: 600; color: var(--pine); text-decoration: none; border: 1px solid var(--pine-deep); border-radius: 8px; padding: 9px 18px; }
.fn-cross__cta:hover { color: var(--bg); background: var(--pine); border-color: var(--pine); text-decoration: none; }

.fn-trailgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 18px; margin-top: 18px; }
.fn-tcard { display: flex; flex-direction: column; background: var(--bg-card); border: 1px solid var(--border); border-radius: 13px; padding: 22px 22px 20px; transition: border-color .15s ease, transform .15s ease; text-decoration: none; }
.fn-tcard:hover { border-color: var(--border-strong); transform: translateY(-2px); text-decoration: none; }
.fn-tcard__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.fn-tcard__cat { font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: .14em; color: var(--blaze); text-transform: uppercase; }
.fn-tcard__idx { font-family: var(--mono); font-size: 11px; color: var(--text-muted); }
.fn-tcard__title { font-family: var(--serif); font-weight: 600; font-size: 22px; line-height: 1.15; letter-spacing: -.01em; color: var(--text-bright); margin: 12px 0 0; }
.fn-tcard__body { flex: 1; margin-top: 12px; }
.fn-tcard__desc { font-family: var(--serif); font-size: 15px; line-height: 1.55; color: var(--text); margin: 0; }
.fn-tcard__preview { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 7px; }
.fn-tcard__preview li { display: flex; gap: 10px; align-items: baseline; font-family: var(--grotesk); font-size: 13.5px; color: var(--text); }
.fn-tcard__preview .n { font-family: var(--mono); font-size: 11px; color: var(--blaze); }
.fn-tcard__foot { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); }
.fn-tcard__metarow { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; }
.fn-tcard__count { font-family: var(--mono); font-size: 11.5px; color: var(--text-muted); }
.fn-tcard__count strong { color: var(--text-bright); font-weight: 700; }
.fn-tcard__follow { font-family: var(--grotesk); font-size: 13px; font-weight: 600; color: var(--blaze); }

/* ── Library ── */
.fn-lib-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.fn-lib-actions { display: flex; gap: 8px; }
.fn-btn { font-family: var(--grotesk); font-size: 12.5px; font-weight: 600; color: var(--text); background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 8px 13px; cursor: pointer; }
.fn-btn:hover { color: var(--text-bright); border-color: var(--border-strong); }

.fn-overview { display: grid; grid-template-columns: repeat(auto-fit, minmax(195px, 1fr)); gap: 12px; margin-top: 28px; }
.fn-ovtile { text-align: left; display: block; text-decoration: none; background: var(--bg-card); border: 1px solid var(--border); border-top: 3px solid var(--c, var(--blaze)); border-radius: 10px; padding: 16px; color: var(--text); transition: border-color .15s ease, background .15s ease; }
.fn-ovtile:hover { background: var(--bg-sunken); border-color: var(--border-strong); border-top-color: var(--c, var(--blaze)); text-decoration: none; }
.fn-ovtile__name { font-family: var(--serif); font-size: 18px; font-weight: 600; color: var(--text-bright); line-height: 1.15; letter-spacing: -.01em; }
.fn-ovtile__meta { font-family: var(--mono); font-size: 11px; color: var(--text-muted); margin-top: 10px; display: flex; gap: 10px; }
.fn-ovtile__meta strong { font-weight: 700; }
.fn-ovtile__meta .sub strong { color: var(--c, var(--blaze)); }
.fn-ovtile__meta .art strong { color: var(--text-bright); }

.fn-lib-layout { display: flex; flex-wrap: wrap; gap: 36px; margin-top: 36px; align-items: flex-start; }
.fn-rail { flex: 1; min-width: 200px; max-width: 248px; position: sticky; top: 84px; }
.fn-rail__label { font-family: var(--mono); font-size: 10.5px; font-weight: 700; letter-spacing: .18em; color: var(--text-muted); padding: 0 0 10px; }
.fn-rail ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1px; }
.fn-rail a { display: flex; align-items: center; gap: 11px; text-decoration: none; font-family: var(--grotesk); font-size: 13.5px; color: var(--text); padding: 9px 12px; border-left: 2px solid transparent; border-radius: 0 7px 7px 0; }
.fn-rail a:hover { background: var(--bg-card); color: var(--text-bright); border-left-color: var(--border-strong); text-decoration: none; }
.fn-rail a.active { color: var(--text-bright); font-weight: 600; border-left-color: var(--c, var(--blaze)); }
.fn-rail__swatch { width: 7px; height: 7px; border-radius: 2px; background: var(--c, var(--blaze)); flex: none; }
.fn-rail__count { font-family: var(--mono); font-size: 11px; color: var(--text-muted); margin-left: auto; }

.fn-tree { flex: 999; min-width: 300px; display: flex; flex-direction: column; gap: 14px; }
.fn-cat { scroll-margin-top: 84px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 13px; overflow: hidden; }
.fn-cat__summary { list-style: none; display: flex; align-items: center; gap: 14px; cursor: pointer; padding: 18px 20px; color: var(--text); }
.fn-cat__summary::-webkit-details-marker { display: none; }
.fn-cat__summary:hover { background: var(--bg-sunken); }
.fn-cat__chev { font-family: var(--mono); font-size: 12px; color: var(--blaze); transition: transform .2s ease; }
.fn-cat[open] .fn-cat__chev { transform: rotate(90deg); }
.fn-cat__swatch { width: 9px; height: 9px; border-radius: 3px; background: var(--c, var(--blaze)); flex: none; }
.fn-cat__name { flex: 1; font-family: var(--serif); font-size: 21px; font-weight: 600; color: var(--text-bright); letter-spacing: -.01em; }
.fn-cat__count { font-family: var(--mono); font-size: 11.5px; color: var(--text-muted); }
.fn-cat__body { border-top: 1px solid var(--border); padding: 6px 20px 16px; }
.fn-sub { border-bottom: 1px solid var(--border); }
.fn-sub:last-child { border-bottom: none; }
.fn-sub__summary { list-style: none; display: flex; align-items: center; gap: 12px; cursor: pointer; padding: 14px 4px; color: var(--text); }
.fn-sub__summary::-webkit-details-marker { display: none; }
.fn-sub__summary:hover { color: var(--text-bright); }
.fn-sub__chev { font-family: var(--mono); font-size: 11px; color: var(--text-muted); transition: transform .2s ease; width: 10px; }
.fn-sub[open] .fn-sub__chev { transform: rotate(90deg); }
.fn-sub__name { flex: 1; font-family: var(--grotesk); font-size: 15px; font-weight: 600; color: var(--text-bright); }
.fn-sub__count { font-family: var(--mono); font-size: 11px; color: var(--text-muted); }
.fn-sub__list { list-style: none; margin: 0 0 8px; padding: 0 0 6px 22px; }
.fn-sub__list li { display: flex; align-items: baseline; gap: 12px; padding: 7px 6px; border-left: 1px solid var(--border); margin-left: 2px; }
.fn-sub__list a { flex: 1; font-family: var(--serif); font-size: 15.5px; color: var(--text); padding-left: 12px; text-decoration: underline; text-decoration-color: transparent; text-underline-offset: 3px; }
.fn-sub__list a:hover { color: var(--blaze); text-decoration-color: var(--blaze); }
.fn-sub__list .min { font-family: var(--mono); font-size: 11px; color: var(--text-muted); white-space: nowrap; }

@media (max-width: 720px) {
  .fn-callouts { grid-template-columns: 1fr; }
  .fn-rail { position: static; max-width: none; }
  .fn-persona__body { padding-left: 22px; }
}