.tools-nav {
  max-width: 1680px;
  margin: 0 auto;
  padding: 0 24px 14px;
}

.tools-nav-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2px 0;
  padding: 6px 10px;
  border-radius: 12px;
  border: 1px solid var(--tools-nav-border, #475569);
  background: var(--tools-nav-bg, #1e293b);
  box-shadow: 0 1px 2px var(--shadow, rgba(15, 23, 42, 0.12));
}

.tools-nav-link {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  color: var(--tools-nav-link, #e2e8f0);
  white-space: nowrap;
  transition: color 0.15s ease, background 0.15s ease;
}

.tools-nav-link:hover {
  color: var(--tools-nav-link-hover, #ffffff);
  background: color-mix(in srgb, var(--brand-accent, #c7d2fe) 14%, transparent);
}

.tools-nav-link.is-active {
  color: var(--tools-nav-link-active, #ffffff);
  background: color-mix(in srgb, var(--brand-accent, #c7d2fe) 28%, transparent);
}

.tools-nav-sep {
  color: var(--tools-nav-sep, #64748b);
  font-size: 12px;
  line-height: 1;
  padding: 0 2px;
  user-select: none;
}

html[data-theme="light"] {
  --tools-nav-bg: #ffffff;
  --tools-nav-border: #cbd5e1;
  --tools-nav-link: #334155;
  --tools-nav-link-hover: #0f172a;
  --tools-nav-link-active: #0f172a;
  --tools-nav-sep: #94a3b8;
}

html[data-theme="dark"] {
  --tools-nav-bg: #1e293b;
  --tools-nav-border: #475569;
  --tools-nav-link: #e2e8f0;
  --tools-nav-link-hover: #ffffff;
  --tools-nav-link-active: #ffffff;
  --tools-nav-sep: #64748b;
}

@media (max-width: 640px) {
  .tools-nav {
    padding: 0 12px 12px;
  }

  .tools-nav-inner {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .tools-nav-inner::-webkit-scrollbar {
    display: none;
  }

  .tools-nav-link {
    padding: 7px 12px;
    font-size: 12px;
  }
}