.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(12, 13, 12, 0.66);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.brand img {
  width: 22px;
  height: 22px;
  filter: drop-shadow(0 0 12px rgba(95, 226, 180, 0.4));
}

.brand .sep {
  margin: 0 4px;
  color: var(--line-2);
}

.brand strong {
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--ink);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.nav-status::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--ink-mute);
  border-radius: 50%;
}

.lang {
  display: inline-flex;
  padding: 3px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.lang button {
  padding: 5px 12px;
  color: var(--ink-mute);
  border-radius: 999px;
  transition: color 0.25s, background 0.25s;
}

.lang button.is-active {
  background: var(--mint);
  color: #07120d;
}

@media (max-width: 600px) {
  .nav-status {
    display: none;
  }
}