.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 1.5rem 0;
  transition: padding 0.4s ease, background 0.4s ease;
}

.nav.scrolled {
  padding: 1rem 0;
  background: rgba(14, 14, 14, 0.85);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--outline);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.nav-brand-icon {
  width: 28px;
  height: 28px;
}

.nav-brand-name {
  font-family: var(--font-d);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  padding: 0.45rem 0.9rem;
  border-radius: 99px;
  transition: color 0.2s, background 0.2s;
  letter-spacing: 0.01em;
}

.nav-links a:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: 0.5rem;
}

.nav-burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition: transform 0.3s ease, opacity 0.2s ease;
  transform-origin: center;
}

.nav.open .nav-burger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav.open .nav-burger span:nth-child(2) { opacity: 0; }
.nav.open .nav-burger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 640px) {
  .nav-burger { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(14, 14, 14, 0.97);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
    padding: 0.5rem var(--pad) 1.25rem;
    border-bottom: 1px solid var(--outline);
    gap: 0;
  }

  .nav.open .nav-links { display: flex; }

  .nav-links li { width: 100%; }

  .nav-links a {
    display: block;
    padding: 0.85rem 0;
    border-radius: 0;
    border-bottom: 1px solid var(--outline);
    font-size: 0.9rem;
  }

  .nav-links li:last-child a { border-bottom: none; }
}