* {
  box-sizing: border-box;
}

.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  justify-content: center;
  border-bottom: 1px solid #222;
  background: rgba(10, 10, 10, 0.96);
  backdrop-filter: blur(8px);
}

.top-nav-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
  padding: 0.75rem 2rem;
}

.nav-link {
  color: #888;
  font-size: 0.85rem;
  text-decoration: none;
  padding: 0.35rem 0.55rem;
  border-radius: 4px;
}

.nav-link:hover {
  color: #e0e0e0;
  background: #1a1a1a;
}

.nav-link[aria-current="page"] {
  color: #0a0a0a;
  background: #e0e0e0;
}

@media (max-width: 520px) {
  .top-nav-inner {
    padding: 0.7rem 1rem;
  }

  .nav-link {
    flex: 1;
    text-align: center;
  }
}