/* ============================================================
   VESPERA — Navigation
   ============================================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: var(--z-nav);
  transition: background var(--t-base), backdrop-filter var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  border-bottom-color: var(--glass-border);
  box-shadow: 0 1px 40px rgba(0, 0, 0, 0.5);
}

.nav__inner {
  max-width: var(--section-max);
  margin: 0 auto;
  padding: 0 var(--sp-8);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-8);
}

/* Logo */
.nav__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: opacity var(--t-fast);
}
.nav__logo:hover { opacity: 0.85; }

.nav__logo-img {
  height: 36px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 8px var(--gold-glow));
}

/* Actions (right side) */
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

/* Blessed link */
.nav__link--blessed {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--gold);
  padding: var(--sp-2) var(--sp-4);
  border: 1px solid var(--gold-border);
  border-radius: var(--r-full);
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
}
.nav__link--blessed:hover {
  background: var(--gold-subtle);
  border-color: var(--gold);
  box-shadow: 0 0 16px var(--gold-glow);
  color: var(--gold-light);
}

/* Nav store buttons */
.nav__store {
  gap: var(--sp-2);
}

/* Hamburger (mobile) */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--sp-2);
  cursor: none;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cream);
  border-radius: var(--r-full);
  transition: transform var(--t-fast), opacity var(--t-fast), background var(--t-fast);
  transform-origin: center;
}

.nav__hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.is-open span:nth-child(2) { opacity: 0; }
.nav__hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.nav__mobile {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--sp-6) var(--sp-6);
  flex-direction: column;
  gap: var(--sp-4);
}

.nav__mobile.is-open { display: flex; }

.nav__mobile-link {
  font-family: var(--font-display);
  font-size: var(--text-base);
  letter-spacing: 0.05em;
  color: var(--cream-mid);
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--glass-border);
  transition: color var(--t-fast);
}
.nav__mobile-link:hover { color: var(--gold); }

.nav__mobile .btn {
  align-self: flex-start;
  margin-top: var(--sp-2);
}

/* Responsive */
@media (max-width: 900px) {
  .nav__actions .btn { display: none; }
  .nav__link--blessed { display: none; }
  .nav__hamburger { display: flex; }
}

@media (max-width: 480px) {
  .nav__inner { padding: 0 var(--sp-5); }
  .nav__logo-img { height: 28px; }
}