/* Global header + nav (2026-11 IA pass). Theme-aware through CSS variables set in /styles/theme.css. */
.gnav { position: sticky; top: 0; z-index: 200; background: var(--g-nav-bg, var(--cream-50)); color: var(--g-nav-ink, var(--stone-900));
  border-bottom: var(--g-nav-border, 1px solid var(--cream-200)); font-family: var(--sans); }
.gnav * { box-sizing: border-box; }
.gnav-in { max-width: 1320px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: 0.75rem clamp(1rem, 3.5vw, 3rem); }
.gnav-logo { text-decoration: none; color: inherit; display: flex; flex-direction: column; line-height: 1.05; }
.gnav-logo b { font-family: var(--g-logo-font, var(--serif)); font-weight: var(--g-logo-weight, 600); font-size: 1.25rem; letter-spacing: var(--g-logo-ls, 0); }
.gnav-logo small { font-size: 0.68rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.75; margin-top: 0.2rem; }
.gnav-menu { display: flex; align-items: center; gap: 0.3rem; list-style: none; margin: 0; padding: 0; }
.gnav-menu > li { position: relative; list-style: none; }
.gnav-menu > li > a { display: inline-flex; align-items: center; gap: 0.3rem; padding: 0.55rem 0.8rem; color: inherit; text-decoration: none;
  font-size: 0.86rem; font-weight: 600; letter-spacing: var(--g-nav-ls, 0.06em); text-transform: var(--g-nav-tt, uppercase); border-radius: var(--g-radius, 4px); }
.gnav-menu > li > a:hover, .gnav-menu > li > a:focus-visible, .gnav-menu > li:focus-within > a { background: var(--g-hover-bg, rgba(0,0,0,0.06)); }
.gnav-menu > li > a[aria-current="page"] { box-shadow: inset 0 -3px 0 var(--g-current, var(--amber)); }
.gnav-menu .caret { font-size: 0.65em; opacity: 0.7; }
.gnav-menu > li.g-train > a { background: var(--g-train-bg, var(--amber)); color: var(--g-train-ink, #fff); padding: 0.55rem 1rem; border: var(--g-train-border, 0); }
.gnav-menu > li.g-train > a:hover, .gnav-menu > li.g-train:focus-within > a { filter: brightness(0.95); }
.gnav-menu > li.g-book > a { border: var(--g-book-border, 2px solid currentColor); margin-left: 0.4rem; }
.gnav-drop { position: absolute; top: 100%; left: 0; min-width: 270px; padding: 0.5rem; margin: 0; list-style: none; display: none;
  background: var(--g-drop-bg, var(--cream-50)); color: var(--g-drop-ink, var(--stone-900)); border: var(--g-drop-border, 1px solid var(--cream-200));
  box-shadow: var(--g-drop-shadow, 0 12px 30px -12px rgba(0,0,0,0.25)); border-radius: var(--g-radius, 4px); }
.gnav-menu > li:hover > .gnav-drop, .gnav-menu > li:focus-within > .gnav-drop { display: block; }
.gnav-drop a { display: block; padding: 0.55rem 0.7rem; color: inherit; text-decoration: none; font-size: 0.95rem; font-weight: 500; border-radius: var(--g-radius, 4px); }
.gnav-drop a small { display: block; font-size: 0.78rem; font-weight: 400; opacity: 0.72; }
.gnav-drop a:hover, .gnav-drop a:focus-visible { background: var(--g-hover-bg2, rgba(0,0,0,0.06)); }
/* Mobile */
.gnav-mobile { display: none; }
.gnav-mobile > summary { list-style: none; cursor: pointer; font-weight: 700; font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.55rem 0.9rem; border: 2px solid currentColor; border-radius: var(--g-radius, 4px); }
.gnav-mobile > summary::-webkit-details-marker { display: none; }
.gnav-mobile[open] > summary { background: var(--g-hover-bg, rgba(0,0,0,0.06)); }
.gnav-sheet { position: absolute; left: 0; right: 0; top: 100%; max-height: calc(100vh - 64px); overflow: auto; background: var(--g-drop-bg, var(--cream-50)); color: var(--g-drop-ink, var(--stone-900));
  border-bottom: var(--g-nav-border, 1px solid var(--cream-200)); padding: 1rem clamp(1rem, 3.5vw, 3rem) 1.5rem; box-shadow: 0 20px 30px -20px rgba(0,0,0,0.35); }
.gnav-sheet .g-m-train { display: block; text-align: center; padding: 0.9rem; margin-bottom: 1rem; font-weight: 700; text-decoration: none;
  background: var(--g-train-bg, var(--amber)); color: var(--g-train-ink, #fff); border: var(--g-train-border, 0); border-radius: var(--g-radius, 4px); }
.gnav-sheet h5 { font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.7; margin: 0.9rem 0 0.3rem; font-weight: 700; font-family: var(--sans); }
.gnav-sheet ul { list-style: none; margin: 0; padding: 0; }
.gnav-sheet li a { display: block; padding: 0.45rem 0; color: inherit; text-decoration: none; font-size: 1rem; }
@media (max-width: 1020px) { .gnav-menu { display: none; } .gnav-mobile { display: block; } }
/* Homepage training strip */
.g-train-strip { display: block; text-decoration: none; background: var(--g-strip-bg, var(--stone-900)); color: var(--g-strip-ink, var(--cream-50)); font-family: var(--sans); }
.g-train-strip-in { max-width: 1320px; margin: 0 auto; padding: 0.8rem clamp(1rem, 3.5vw, 3rem); display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem; font-size: 0.98rem; }
.g-train-strip .g-tag { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; padding: 0.2rem 0.55rem; background: var(--g-strip-tag-bg, var(--amber)); color: var(--g-strip-tag-ink, #fff); border-radius: var(--g-radius, 3px); }
.g-train-strip-in > span:nth-child(2) { flex: 1 1 420px; }
.g-train-strip .g-go { margin-left: auto; font-weight: 700; white-space: nowrap; border-bottom: 2px solid currentColor; }
.g-train-strip:hover .g-go { opacity: 0.85; }
@media (max-width: 700px) { .g-train-strip .g-go { margin-left: 0; } }
@media print { .gnav, .g-train-strip { display: none !important; } }