/* ============================================
   NISSAN GT-R — HEADER STYLES
============================================ */

nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  height: 72px;
  background: rgba(5, 6, 8, 0.85);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(232, 0, 29, 0.25);
}

.nav-logo {
  font-family: var(--font-head);
  font-size: 2rem;
  letter-spacing: 6px;
  color: var(--text);
}

.nav-logo span { color: var(--red); }

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-links a {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-dim);
  position: relative;
  transition: color 0.3s var(--trans);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--red);
  transition: width 0.35s var(--trans);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

@media (max-width: 768px) {
  nav { padding: 0 24px; }
}