/* NAV */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px 60px;
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}
nav.scrolled {
  background: rgba(214,227,236,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 18px 60px;
}
.nav-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.25rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}
.nav-right { display: flex; align-items: center; gap: 44px; }
.nav-links { display: flex; gap: 40px; list-style: none; }
.nav-links a {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.25s;
  position: relative;
  padding-bottom: 3px;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s ease;
}
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-links a:hover { color: var(--blue); }
.nav-links a.active { color: var(--blue); }
.nav-links a.active::after { transform: scaleX(1); transform-origin: left; }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}
.lang-switch button {
  background: none;
  border: none;
  color: var(--ink-faint);
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.1em;
  padding: 4px 2px;
  transition: color 0.25s;
}
.lang-switch button:hover { color: var(--ink); }
.lang-switch button.active { color: var(--blue); font-weight: 600; }
.lang-switch .sep { color: var(--border); }