/* Shared Double Skunk page chrome (kb-bar, nav, CTA buttons, footer).
   Linked before guide.css / learn.css. */

* { box-sizing: border-box; }
/* Beats any component rule that sets display, so `hidden` always hides. */
[hidden] { display: none !important; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--skunk-ink);
  background-image: var(--cribbage-holes);
  background-size: 40px 40px;
  color: var(--fg-1);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 32px; }

/* ---- Kerrberry domain bar ---- */
.kb-bar { background: #08070a; border-bottom: 1px solid var(--border-hair);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.02em; color: var(--fg-4); }
.kb-bar-inner { max-width: 1040px; margin: 0 auto; padding: 8px 32px;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.kb-sep { color: var(--fg-4); opacity: 0.5; }
.kb-here { color: var(--brass-glow); }
.kb-spacer { flex: 1; }
.kb-bar a { color: var(--fg-3); text-decoration: none; border-bottom: 1px dotted var(--fg-4); transition: color 160ms, border-color 160ms; }
.kb-bar a:hover { color: var(--chalk); border-bottom-color: var(--chalk-4); }

/* ---- Nav ---- */
.nav { position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklch, var(--skunk-ink) 92%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-hair); }
.nav-inner { max-width: 1040px; margin: 0 auto; padding: 12px 32px;
  display: flex; align-items: center; gap: 18px; }
.nav-brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-brand img { width: 38px; height: 38px; display: block; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.6)); }
.nav-brand .nb-name { font-family: var(--font-display); font-size: 17px; color: var(--chalk); line-height: 1; }
.nav-spacer { flex: 1; }
.nav-link { font-family: var(--font-sign); font-weight: 800; font-size: 12px;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--fg-3);
  text-decoration: none; border-bottom: 1px dotted var(--fg-4); transition: color 160ms, border-color 160ms; }
.nav-link:hover { color: var(--chalk); border-bottom-color: var(--chalk-4); }
.nav-link[aria-current="page"] { color: var(--chalk); border-bottom: 2px solid var(--brass); }
.nav-cta { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px;
  border-radius: 10px; font-family: var(--font-sign); font-weight: 800; font-size: 12px;
  letter-spacing: 0.18em; text-transform: uppercase; text-decoration: none; border: 0; cursor: pointer;
  transition: transform 80ms, box-shadow 160ms, background 160ms, color 160ms; }
.nav-cta.pop { color: var(--chalk);
  background: linear-gradient(180deg, var(--brass-bright), var(--brass) 65%, var(--brass-deep));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.25), inset 0 -2px 0 rgba(0,0,0,0.30), 0 6px 14px -6px rgba(210,75,58,0.55); }
.nav-cta.pop:hover { transform: translateY(-1px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.30), inset 0 -2px 0 rgba(0,0,0,0.30), 0 10px 22px -6px rgba(210,75,58,0.7); }
.nav-cta:active { transform: translateY(1px); }
.nav-cta .star { color: var(--chalk); }

/* ---- CTA buttons ---- */
.cta { display: inline-flex; align-items: center; gap: 12px; padding: 16px 22px; border-radius: 12px;
  font-family: var(--font-sign); font-weight: 800; font-size: 13px; letter-spacing: 0.18em;
  text-transform: uppercase; text-decoration: none; border: 0; cursor: pointer; transition: transform 80ms, box-shadow 160ms; }
.cta.pop { color: var(--chalk);
  background: linear-gradient(180deg, var(--brass-bright), var(--brass) 60%, var(--brass-deep));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.30), inset 0 -2px 0 rgba(0,0,0,0.35), 0 10px 24px -8px rgba(210,75,58,0.65); }
.cta.pop:hover { transform: translateY(-2px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.35), inset 0 -2px 0 rgba(0,0,0,0.35), 0 16px 32px -8px rgba(210,75,58,0.75); }
.cta:active { transform: translateY(1px); }
.cta .glyph { font-size: 16px; line-height: 1; }

/* ---- Footer ---- */
.foot { background: #08070a; border-top: 1px solid var(--border-hair); padding: 36px 0 32px; margin-top: 24px; }
.foot-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.foot-brand { display: inline-flex; align-items: center; gap: 12px; }
.foot-brand img { width: 32px; height: 32px; }
.foot-brand .fb-name { font-family: var(--font-display); font-size: 15px; color: var(--chalk); line-height: 1; }
.foot-brand .fb-by { font-family: var(--font-sign); font-weight: 800; font-size: 10px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--fg-4); margin-top: 4px; display: block; line-height: 1; }
.foot-brand .fb-by a { color: var(--fg-3); text-decoration: none; border-bottom: 1px dotted var(--fg-4); }
.foot-brand .fb-by a:hover { color: var(--chalk); }
.foot-fine { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; color: var(--fg-4); }

/* ---- Responsive ---- */
@media (max-width: 720px) {
  .nav-link { display: none; }
}