/* ============================================================
   NAV — shared site header and footer
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1.2rem, 4vw, 3rem);
  background: rgba(246, 239, 227, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-mark {
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: var(--rose-deep);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.2rem);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--ink-soft);
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-quick) var(--ease-soft),
              border-color var(--dur-quick) var(--ease-soft);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--rose-deep);
  border-color: var(--gold-soft);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--ink);
  font-size: 1.4rem;
}

@media (max-width: 780px) {
  .site-nav {
    position: fixed;
    inset: 62px 0 auto 0;
    flex-direction: column;
    background: var(--parchment);
    padding: var(--space-md);
    border-bottom: 1px solid var(--line);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur-quick) var(--ease-soft),
                transform var(--dur-quick) var(--ease-soft);
  }
  .site-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-toggle { display: block; }
}

.site-footer {
  padding: var(--space-lg) clamp(1.2rem, 4vw, 3rem) var(--space-md);
  text-align: center;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: var(--step-small);
}

.site-footer .sparkle { color: var(--gold-soft); margin: 0 var(--space-xs); }