.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-nav);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

.nav__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 68px;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--color-emerald);
  letter-spacing: -0.02em;
  margin-right: auto;
}

.nav__links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.nav__links a {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav__links a:hover {
  color: var(--color-white);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav__lang {
  font-size: var(--font-size-xs);
  color: var(--color-white);
  font-weight: 600;
  border: 1px solid var(--color-emerald);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  background: transparent;
  transition: all var(--transition-fast);
}

.nav__lang:hover {
  background: var(--color-emerald);
  color: var(--color-black);
}

.nav__lang .lang-active {
  color: var(--color-emerald);
  font-weight: 700;
}

.nav__cta {
  background: var(--color-emerald);
  color: var(--color-black);
  font-weight: 600;
  font-size: var(--font-size-sm);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.nav__cta:hover {
  background: var(--color-emerald-dark);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav__hamburger span {
  width: 24px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: transform var(--transition-fast);
}

.nav__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 7px);
}

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

.nav__hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -7px);
}

.nav__mobile {
  display: none;
}

.nav__mobile.open {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 68px;
  left: 0;
  width: 100%;
  height: calc(100vh - 68px);
  background: var(--color-black);
  padding: var(--space-xl);
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
}

.nav__mobile ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.nav__mobile a {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  color: white;
  font-weight: 600;
}

.nav__mobile ul a:hover {
  color: var(--color-emerald);
}

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

  .nav__actions {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .lang-toggle-mobile {
    display: flex;
    background: #1a1a1a;
    border-radius: 99px;
    padding: 3px;
    margin-bottom: 2rem;
  }

  .lang-toggle-mobile span {
    font-size: 14px;
    font-weight: 600;
    padding: 8px 20px;
    border-radius: 99px;
    cursor: pointer;
    color: #888;
    background: transparent;
    transition: all 0.2s;
  }

  .lang-toggle-mobile span.active {
    background: #2ecc71;
    color: #0a2e18;
  }
}