/* ─── NAV ─── */
#site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 4rem;
  transition: background .4s, backdrop-filter .4s, box-shadow .4s;
}
#site-nav.scrolled {
  background: rgba(245,240,232,.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--parchment);
}

.nav-logo {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.2rem;
  letter-spacing: .1em;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.nav-logo__sub {
  font-size: .58rem;
  letter-spacing: .35em;
  color: var(--gold);
  font-family: var(--sans);
  font-weight: 300;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--sans);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-m);
  position: relative;
  padding-bottom: 2px;
  font-weight: 400;
  transition: color .25s;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width .3s ease;
}
.nav-links a:hover { color: var(--gold-d); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--gold-d); }
.nav-links a.active::after { width: 100%; }

.nav-cta {
  font-family: var(--sans);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--maroon);
  text-decoration: none;
  border: 1px solid var(--maroon);
  padding: .45rem 1.2rem;
  transition: background .25s, color .25s;
  font-weight: 400;
}
.nav-cta:hover {
  background: var(--maroon);
  color: var(--ivory);
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--ink);
  transition: transform .3s, opacity .3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 900px) {
  #site-nav { padding: 1.25rem 1.5rem; }
  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--ivory);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1rem; letter-spacing: .2em; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; z-index: 101; }
}