/* ═══════════════════════════════════════════════════════
   RANGOON FILMS — NAVIGATION CSS
═══════════════════════════════════════════════════════ */

/* ── Fixed Nav Bar ── */
#nav {
  position: absolute; top: 0; left: 0; right: 0; z-index: 900;
  height: var(--nav-h);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  grid-template-rows: var(--nav-h);
  align-items: center;
  overflow: visible;
  padding: 0 var(--section-px);
  transition: background .5s var(--ease), box-shadow .5s var(--ease), height .4s var(--ease), transform .45s var(--ease);
}

/* State: transparent (hero) */
#nav.nav-transparent { background: transparent; }


/* State: dark background */
#nav.nav-dark {
  background: rgba(24,13,13,.97);
  box-shadow: 0 2px 40px rgba(0,0,0,.45);
  backdrop-filter: blur(14px);
  height: 76px;
}

/* State: light background */
#nav.nav-light {
  background: rgba(250,248,245,.97);
  box-shadow: 0 1px 24px rgba(0,0,0,.08);
  backdrop-filter: blur(14px);
  height: 76px;
}

/* ── Logo (mobile only — hidden on desktop) ── */
.nav-logo-wrap { display: none; }
.nav-logo { height: 110px; width: auto; display: block; }
.logo-white { display: block; }
.logo-dark  { display: none; }
#nav.nav-light .logo-white { display: none; }
#nav.nav-light .logo-dark  { display: block; }

/* ── Brand Text (desktop center) ── */
.nav-brand-logo {
  justify-self: center;
  display: flex; align-items: center;
  opacity: .92;
  transition: opacity .3s;
}
.nav-brand-logo:hover { opacity: 1; }
.nav-center-logo {
  height: 152px;
  width: auto;
  display: block;
  margin-top: 10px;
}

/* ── Desktop Links ── */
.nav-links {
  display: flex; align-items: center; gap: 36px;
  list-style: none; padding: 0; margin: 0;
}
.nav-links-left  { justify-self: start; }
.nav-links-right { justify-self: end; }
.nav-links a {
  font-family: var(--ff-body);
  font-size: 10.5px; font-weight: 500;
  letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--white); opacity: .82;
  transition: opacity .3s, color .3s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -5px; left: 0; right: 100%;
  height: 1px; background: var(--gold);
  transition: right .4s var(--ease);
}
.nav-links a:hover         { opacity: 1; }
.nav-links a:hover::after  { right: 0; }
.nav-links a.active        { opacity: 1; color: var(--gold); }
.nav-links a.active::after { right: 0; background: var(--gold); }

/* Light nav — flip text dark */
#nav.nav-light .nav-links a { color: var(--charcoal); }
#nav.nav-light .nav-links a.active { color: var(--crimson); }
#nav.nav-light .nav-links a.active::after { background: var(--crimson); }

/* Enquire CTA */
.nav-enquire {
  padding: 10px 26px;
  border: 1px solid var(--gold);
  color: var(--gold) !important;
  opacity: 1 !important;
  font-size: 10px !important;
  letter-spacing: 2.5px !important;
  transition: background .3s, color .3s !important;
}
.nav-enquire:hover { background: var(--gold); color: var(--dark) !important; }
.nav-enquire::after { display: none !important; }
#nav.nav-light .nav-enquire { color: var(--gold) !important; }

/* ── Hamburger ── */
.hamburger {
  display: none;
  flex-direction: column; gap: 5px;
  width: 26px; z-index: 901;
}
.hamburger span {
  display: block; height: 1.5px; background: var(--white);
  transition: all .35s ease; transform-origin: center;
}
#nav.nav-light .hamburger span { background: var(--charcoal); }
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Mobile Full-screen Menu ── */
.mobile-menu {
  position: fixed; inset: 0; z-index: 850;
  background: var(--dark);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 30px;
  opacity: 0; pointer-events: none;
  transition: opacity .45s ease;
}
.mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-menu a {
  font-family: var(--ff-display);
  font-size: clamp(30px, 8.5vw, 50px);
  font-weight: 300; color: var(--white);
  letter-spacing: 4px;
  transition: color .3s;
}
.mobile-menu a:hover   { color: var(--gold); }
.mobile-menu a.active  { color: var(--gold); }
.mobile-enquire {
  margin-top: 10px;
  padding: 14px 44px !important;
  border: 1px solid var(--gold) !important;
  font-family: var(--ff-body) !important;
  font-size: 11px !important;
  letter-spacing: 3px !important;
  text-transform: uppercase !important;
  color: var(--gold) !important;
  font-weight: 400 !important;
  transition: background .3s, color .3s !important;
}
.mobile-enquire:hover { background: var(--gold) !important; color: var(--dark) !important; }

/* ── Responsive ── */
@media (max-width: 900px) {
  #nav {
    display: flex;
    justify-content: center;
    padding: 0 22px;
  }
  .nav-links { display: none; }
  .nav-logo-wrap { display: none; }
  .nav-brand-logo {
    display: flex;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
  .nav-center-logo { height: 72px; margin-top: 0; }
  .hamburger { display: flex; position: absolute; right: 22px; }
}