/* ============================================================
   Navigation
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 1000;
  transition: background var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.nav-logo {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: opacity var(--transition);
}

.nav-logo:hover {
  opacity: 0.85;
}

.logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  box-shadow: 0 0 8px var(--cyan);
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  position: relative;
  padding: 8px 14px;
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-links a.active {
  color: var(--cyan);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
}

.nav-cta {
  margin-left: 12px;
  padding: 10px 22px !important;
  font-size: 0.9rem !important;
  font-weight: 700 !important;
  color: #000 !important;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--purple) 100%) !important;
  border-radius: 8px !important;
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.25);
  letter-spacing: 0.01em;
}

.nav-cta:hover {
  color: #000 !important;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--purple) 100%) !important;
  box-shadow: 0 0 28px rgba(0, 212, 255, 0.5) !important;
  transform: translateY(-1px);
}

.nav-cta.active::after {
  display: none;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
  border-radius: 6px;
  transition: background var(--transition);
}

.hamburger:hover {
  background: rgba(255, 255, 255, 0.05);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: rgba(10, 10, 15, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
  transform: translateY(-8px);
  opacity: 0;
  transition: transform var(--transition), opacity var(--transition);
}

.mobile-menu.open {
  display: flex;
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu a {
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--cyan);
  background: var(--cyan-glow);
}

.mobile-menu .btn {
  margin-top: 8px;
  justify-content: center;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
}