.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background var(--transition), backdrop-filter var(--transition), border-color var(--transition), padding var(--transition);
}

.navbar.scrolled {
  background: rgba(6, 6, 18, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 0;
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  z-index: 1;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.navbar__link {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition);
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--text-primary);
}

.navbar__link.active::after,
.navbar__link:hover::after {
  width: 100%;
}

.navbar__cta {
  margin-left: 8px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--border-color);
  border-radius: 100px;
  background: rgba(124, 58, 237, 0.06);
}

.lang-switch__btn {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  padding: 5px 12px;
  border-radius: 100px;
  transition: color var(--transition), background var(--transition);
}

.lang-switch__btn.active {
  color: var(--text-primary);
  background: var(--accent-gradient);
  box-shadow: 0 0 16px rgba(124, 58, 237, 0.35);
}

.lang-switch__btn:not(.active):hover {
  color: var(--text-primary);
}

.lang-switch--mobile {
  transform: scale(1.15);
  margin: 8px 0;
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  z-index: 1002;
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.navbar__toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.navbar__toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.navbar.is-menu-open {
  z-index: 999;
  pointer-events: none;
}

/* Hide duplicate header — mobile overlay has its own logo + close */
.navbar.is-menu-open .navbar__inner {
  visibility: hidden;
}

.mobile-nav {
  position: fixed;
  inset: 0;
  background: rgba(6, 6, 18, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 1005;
  display: flex;
  flex-direction: column;
  padding: 0 24px 32px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.35s ease, visibility 0.35s ease;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-nav.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-nav__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
  padding: 14px 0 8px;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  background: rgba(6, 6, 18, 0.97);
  z-index: 2;
  pointer-events: auto;
}

.mobile-nav__brand {
  flex: 1;
  min-width: 0;
  pointer-events: auto;
}

.mobile-nav__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  position: relative;
  z-index: 3;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: rgba(124, 58, 237, 0.12);
  color: var(--text-primary);
  font-size: 22px;
  flex-shrink: 0;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.mobile-nav__close:hover,
.mobile-nav__close:focus-visible {
  background: rgba(124, 58, 237, 0.22);
  border-color: var(--accent-primary);
  outline: none;
}

.mobile-nav__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex: 1;
  padding: 24px 0 16px;
  min-height: min(70vh, 560px);
}

.mobile-nav__link {
  font-family: var(--font-heading);
  font-size: clamp(28px, 6vw, 40px);
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition), transform var(--transition);
  opacity: 0;
  transform: translateY(20px);
}

.mobile-nav.open .mobile-nav__link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-nav.open .mobile-nav__links .mobile-nav__link:nth-child(1) { transition-delay: 0.1s; }
.mobile-nav.open .mobile-nav__links .mobile-nav__link:nth-child(2) { transition-delay: 0.15s; }
.mobile-nav.open .mobile-nav__links .mobile-nav__link:nth-child(3) { transition-delay: 0.2s; }
.mobile-nav.open .mobile-nav__links .mobile-nav__link:nth-child(4) { transition-delay: 0.25s; }
.mobile-nav.open .mobile-nav__links .mobile-nav__link:nth-child(5) { transition-delay: 0.3s; }
.mobile-nav.open .mobile-nav__links .mobile-nav__link:nth-child(6) { transition-delay: 0.35s; }

.mobile-nav__link:hover,
.mobile-nav__link.active {
  color: var(--text-primary);
}

.mobile-nav__links .btn {
  margin-top: 8px;
  width: min(100%, 280px);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease 0.4s, transform 0.4s ease 0.4s;
}

.mobile-nav.open .mobile-nav__links .btn {
  opacity: 1;
  transform: translateY(0);
}

.mobile-nav.open .lang-switch--mobile {
  opacity: 1;
  transform: translateY(0);
}

.mobile-nav .lang-switch--mobile {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease 0.38s, transform 0.4s ease 0.38s;
}

@media (max-width: 768px) {
  .navbar__nav {
    display: none;
  }

  .navbar__toggle {
    display: flex;
  }
}