#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--black);
  transition: background 0.3s;
}

#nav.scrolled {
  background: rgba(10, 10, 10, 0.96);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 40px;
  height: var(--nav-height);
  max-width: var(--max-width);
  margin: 0 auto;
  transition: height 0.3s;
}

#nav.scrolled .nav-inner {
  height: var(--nav-height-scrolled);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 3px;
  color: var(--cream);
  transition: color 0.2s;
}

.nav-logo:hover {
  color: var(--green);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 36px;
}

.nav-links a {
  font-family: var(--font-ui);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gray);
  transition: color 0.2s;
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--green);
  transition: width 0.25s ease;
}

.nav-links a:hover {
  color: var(--green);
}

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

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

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--cream);
  transition: transform 0.3s, opacity 0.3s;
}

@media (max-width: 768px) {
  .nav-hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--black);
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--border);
  }

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

  .nav-links li {
    border-bottom: 1px solid var(--border);
  }

  .nav-links a {
    display: block;
    padding: 18px 40px;
    font-size: 13px;
  }

  .nav-links a::after {
    display: none;
  }
}