/* Mega menu: top-level items with sub-pages open a full-width solid panel under the header (hover with intent delay,
   focus, or tap on touch). Panel: intro + overview link, sub-page links with a short line each, an optional donate card. */
.ch-ni{position:static}
.ch-mega{position:absolute;left:0;right:0;top:100%;z-index:5;background:var(--bg);color:var(--cream);border-top:1px solid var(--line);box-shadow:0 30px 60px -30px rgba(var(--shadow-rgb),.45);
  opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .25s,transform .35s cubic-bezier(.2,.8,.2,1),visibility 0s .35s}
.ch-ni.is-open>.ch-mega{opacity:1;visibility:visible;transform:none;transition:opacity .25s,transform .35s cubic-bezier(.2,.8,.2,1),visibility 0s}
.ch-mega-in{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1.6fr) minmax(0,.9fr);gap:clamp(1.5rem,3vw,3.5rem);padding-top:2.4rem;padding-bottom:2.6rem}
.ch-mega-k{margin:0 0 .6rem;font-family:var(--serif);font-size:2rem;line-height:1.05;font-weight:400}
.ch-mega-t{color:var(--muted);font-size:.95rem;margin:0 0 1.2rem;max-width:32ch}
.ch-mega-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:.25rem 1.5rem;align-content:start}
.ch-mega-list a{position:relative;display:grid;gap:.15rem;padding:.85rem 2rem .85rem 0;border-bottom:1px solid var(--line);transition:color .2s}
.ch-mega-list a .i{position:absolute;right:.2rem;top:50%;translate:0 -50%;width:16px;height:16px;opacity:.5;transition:transform .25s,opacity .25s}
.ch-mega-list a:hover .i,.ch-mega-list a:focus-visible .i{transform:translateX(4px);opacity:1}
.ch-mega-n{font-family:var(--serif);font-size:1.2rem;line-height:1.2}
.ch-mega-d{font-size:.84rem;color:var(--muted)}
.ch-mega-list a:hover .ch-mega-n,.ch-mega-list a[aria-current="page"] .ch-mega-n{color:var(--olive)}
.ch-mega-card{align-self:start;background:var(--deep);color:var(--on-deep);border-radius:14px;padding:1.4rem}
.ch-mega-ck{margin:0 0 .4rem;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;opacity:.8}
.ch-mega-ct{margin:0 0 1rem;font-family:var(--serif);font-size:1.15rem;line-height:1.3}
.ch-chev{transition:transform .25s}
.ch-ni.is-open .ch-chev{transform:rotate(180deg)}
/* mobile sub-lists (inside the solid mobile menu) */
.ch-mrow{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.ch-msub-t{flex:none;display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--line2);border-radius:50%;background:none;color:inherit;cursor:pointer}
.ch-msub-t .i{width:14px;height:14px;transition:transform .25s}
.ch-msub-t[aria-expanded="true"] .i{transform:rotate(180deg)}
.ch-msub{list-style:none;margin:0 0 .8rem;padding:0 0 0 .2rem}
.ch-msub a{display:block;padding:.5rem 0;font-size:1.05rem;color:var(--muted)}
.ch-msub a[aria-current="page"],.ch-msub a:hover{color:var(--cream)}