/* mirror-shell.css — the ONE header and the ONE footer every page of the site wears.
 *
 * Every page used to draw its own: eight hand-written pages carried eight different menus, several had no
 * footer at all, and the page a "Start a pilot" button lands on offered neither Pricing nor a way back to
 * the tabs. server/build-pages.js now writes the same header (nav) and footer (footer) into every page -
 * generated and hand-written alike - and this file is the only place they are styled.
 *
 * Its tokens are namespaced (--sh-*) and every selector is anchored on header.nav or footer.pfoot, so a
 * page's own stylesheet - which may name its ink --paper, size every h2 at 40px, or give .btn its own
 * radius - can never reach into the shell, and the shell never reaches into the page.
 * server/site-shell.test.js holds every served page to it.
 */
:root{
  --sh-ground:#FCFCFA; --sh-ink:#111619; --sh-ink2:#59636A; --sh-mut:#626B71;
  --sh-line:#E9E9E4; --sh-line2:#DCDCD6;
  --sh-gold:#9C7A42; --sh-gold-ink:#7A5E31;
  --sh-blue:#163A5F; --sh-blue2:#2F6B9C;
  --sh-display:"Plus Jakarta Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --sh-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sh-page:1240px; --sh-gut:clamp(20px,4vw,64px);
}

/* ── skip link: the first thing a keyboard reaches on every page ─────────────────────────────────── */
a.skip{position:absolute;left:-9999px;top:10px;z-index:90;background:var(--sh-ink);color:#FCFCFA;padding:11px 16px;
  border-radius:2px;font:600 14px/1 var(--sh-display);text-decoration:none}
a.skip:focus{left:16px}

/* ── the header ──────────────────────────────────────────────────────────────────────────────────── */
/* Near-opaque on purpose: at .86 the header turned a muddy grey over the dark sections, because the
   dark ground bled through. */
header.nav{position:sticky;top:0;z-index:50;background:rgba(252,252,250,.95);-webkit-backdrop-filter:saturate(1.3) blur(14px);
  backdrop-filter:saturate(1.3) blur(14px);border-bottom:1px solid var(--sh-line);font-family:var(--sh-display);color:var(--sh-ink)}
header.nav .navin{display:flex;align-items:center;gap:28px;height:70px;max-width:var(--sh-page);margin:0 auto;padding:0 var(--sh-gut)}
header.nav .brand,footer.pfoot .brand{display:inline-flex;align-items:center;gap:11px;color:var(--sh-ink);text-decoration:none}
header.nav .brand .wm{font-family:var(--sh-display);font-weight:700;font-size:19px;letter-spacing:-.025em;color:var(--sh-ink)}
header.nav .mk,footer.pfoot .mk{display:block;flex:none;width:26px;height:26px;color:var(--sh-ink)}
header.nav .navlinks{display:flex;gap:26px;margin-left:auto;font-size:14.5px;font-weight:500}
header.nav .navlinks a{position:relative;display:inline-flex;align-items:center;min-height:40px;color:var(--sh-ink2);
  text-decoration:none;white-space:nowrap;transition:color .18s}
header.nav .navlinks a:hover{color:var(--sh-ink)}
header.nav .navlinks a[aria-current="page"]{color:var(--sh-ink);font-weight:600}
header.nav .navlinks a[aria-current="page"]::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:2px;background:var(--sh-gold)}
header.nav .navcta{display:flex;gap:10px;align-items:center}
header.nav .btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;margin:0;
  font-family:var(--sh-display);font-size:14px;font-weight:600;line-height:1;letter-spacing:0;border-radius:2px;
  border:1px solid var(--sh-line2);background:transparent;color:var(--sh-ink);text-decoration:none;white-space:nowrap;
  box-shadow:none;transition:background .18s,color .18s,border-color .18s}
header.nav .btn:hover{border-color:var(--sh-ink);color:var(--sh-ink)}
header.nav .btn-s{background:var(--sh-ink);border-color:var(--sh-ink);color:#FCFCFA}
header.nav .btn-s:hover{background:var(--sh-blue);border-color:var(--sh-blue);color:#FFFFFF}
header.nav .btn[aria-current="page"]{box-shadow:inset 0 -2px 0 var(--sh-gold)}
header.nav :focus-visible,footer.pfoot :focus-visible{outline:2px solid var(--sh-blue2);outline-offset:3px;border-radius:2px}
/* ── who it's for: one native disclosure beside the tabs - no script needed to open, close or follow it ── */
header.nav .navin{position:relative}
header.nav .navmenu{position:relative}
header.nav .navmenu > summary{list-style:none;display:inline-flex;align-items:center;gap:8px;min-height:40px;cursor:pointer;
  font-size:14.5px;font-weight:500;color:var(--sh-ink2);white-space:nowrap;transition:color .18s;-webkit-user-select:none;user-select:none}
header.nav .navmenu > summary::-webkit-details-marker{display:none}
header.nav .navmenu > summary::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:translateY(-2px) rotate(45deg);transition:transform .2s}
header.nav .navmenu > summary:hover,header.nav .navmenu[open] > summary{color:var(--sh-ink)}
header.nav .navmenu[open] > summary::after{transform:translateY(1px) rotate(-135deg)}
header.nav .navmenu.is-current > summary{color:var(--sh-ink);font-weight:600}
header.nav .navmenu-p{position:absolute;right:0;top:calc(100% + 12px);width:min(380px,calc(100vw - 32px));background:#FFFFFF;
  border:1px solid var(--sh-line);border-radius:12px;box-shadow:0 24px 60px -28px rgba(17,22,25,.38);padding:8px;display:grid;gap:2px;z-index:60}
header.nav .navmenu-p a{display:grid;gap:3px;padding:11px 13px;border-radius:8px;text-decoration:none;color:var(--sh-ink)}
header.nav .navmenu-p a:hover,header.nav .navmenu-p a:focus-visible{background:#F3F3F0}
header.nav .navmenu-p a b{font-size:14px;font-weight:600;letter-spacing:-.005em}
header.nav .navmenu-p a span{font-size:12.5px;line-height:1.45;color:var(--sh-ink2)}
header.nav .navmenu-p a[aria-current="page"] b{color:var(--sh-gold-ink)}
header.nav .navmenu-p a.all{border-top:1px solid var(--sh-line);border-radius:0 0 8px 8px;margin-top:4px;padding-top:13px}
@media (max-width:980px){
  /* two rows: the mark, who it's for and the calls to action, then the tabs, each tall enough to tap */
  header.nav .navin{flex-wrap:wrap;height:auto;gap:0 20px;padding-top:10px}
  header.nav .navlinks{order:3;width:100%;margin-left:0;overflow-x:auto;gap:22px;scrollbar-width:none}
  header.nav .navlinks::-webkit-scrollbar{display:none}
  header.nav .navlinks a{min-height:44px}
  header.nav .navlinks a[aria-current="page"]::after{bottom:6px}
  header.nav .navmenu{position:static;margin-left:auto}
  header.nav .navmenu > summary{min-height:44px;font-size:14px}
  header.nav .navmenu-p{left:var(--sh-gut);right:var(--sh-gut);top:58px;width:auto}
  header.nav .navcta{margin-left:0}
}
@media (max-width:520px){
  header.nav .navcta .btn:not(.btn-s){display:none}
  /* all five tabs fit a 360px phone without a hidden sixth of the menu */
  header.nav .navlinks{justify-content:space-between;gap:10px;font-size:13.5px}
}
@media (max-width:374px){ header.nav .navlinks{font-size:12.5px;gap:8px} }

/* ── the footer ──────────────────────────────────────────────────────────────────────────────────── */
footer.pfoot{border-top:1px solid var(--sh-line);background:var(--sh-ground);color:var(--sh-ink);
  font-family:var(--sh-display);font-size:14px;line-height:1.6;text-align:left}
footer.pfoot .pfoot-in{max-width:var(--sh-page);margin:0 auto;padding:52px var(--sh-gut) 40px}
footer.pfoot .pfoot-cols{display:grid;gap:32px;grid-template-columns:1.3fr repeat(3,minmax(0,1fr))}
footer.pfoot .brand .wm{font-family:var(--sh-display);font-weight:700;font-size:17px;letter-spacing:-.02em;color:var(--sh-ink)}
footer.pfoot .pfoot-note{margin:14px 0 0;max-width:38ch;color:var(--sh-ink2);font-size:13.5px;line-height:1.6}
footer.pfoot .pfoot-h{margin:0 0 10px;padding:0;font:500 11px/1.4 var(--sh-mono);letter-spacing:.2em;text-transform:uppercase;
  color:var(--sh-gold-ink);max-width:none}
footer.pfoot ul{list-style:none;margin:0;padding:0;display:grid;gap:0}
footer.pfoot li{margin:0;padding:0}
footer.pfoot li::before{content:none}
footer.pfoot ul a{display:inline-block;padding:5px 0;color:var(--sh-ink2);text-decoration:none;font-size:14px}
footer.pfoot ul a:hover{color:var(--sh-ink);text-decoration:underline;text-underline-offset:3px}
footer.pfoot .pfoot-base{margin-top:40px;padding-top:20px;border-top:1px solid var(--sh-line);display:grid;gap:6px;
  font-size:12.5px;line-height:1.55;color:var(--sh-mut)}
footer.pfoot .pfoot-base p{margin:0;max-width:none}
@media (max-width:860px){
  footer.pfoot .pfoot-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  footer.pfoot .pfoot-brand{grid-column:1/-1}
}
@media (max-width:460px){ footer.pfoot .pfoot-cols{grid-template-columns:minmax(0,1fr)} }
@media print{ header.nav{position:static} a.skip{display:none} }