/* Language switcher (header) */
.lang-switch {
  display: flex;
  gap: 2px;
  align-items: center;
  padding: 2px;
  border: 1px solid rgba(79, 129, 189, 0.22);
  border-radius: 4px;
  background: rgba(15, 35, 64, 0.35);
}

.lang-switch .lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  min-height: 28px;
  max-height: 28px;
  padding: 0 8px;
  box-sizing: border-box;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border: 1px solid transparent;
  border-radius: 3px;
  line-height: 1;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.lang-switch .lang-btn:hover { color: var(--accent); }

.lang-switch .lang-btn.active {
  color: var(--accent);
  border-color: rgba(75, 172, 198, 0.45);
  background: rgba(75, 172, 198, 0.12);
}

@media (max-width: 768px) {
  .header-cta .lang-switch {
    gap: 1px;
    padding: 1px;
  }

  .header-cta .lang-switch .lang-btn {
    height: 26px;
    min-height: 26px;
    max-height: 26px;
    padding: 0 6px;
    font-size: 11px;
  }
}

/* Vietnamese — avoid breaking fixed word units mid-phrase */
html[lang="vi"],
html[lang="en"] {
  hyphens: none;
  -webkit-hyphens: none;
}

html[lang="vi"] .nav > li > a,
html[lang="vi"] .tab-btn,
html[lang="vi"] .footer-col a,
html[lang="vi"] .breadcrumb,
html[lang="vi"] .section-title,
html[lang="vi"] .feature-list li,
html[lang="vi"] .stat-item .label,
html[lang="vi"] .solution-panel h3,
html[lang="vi"] .card h3,
html[lang="vi"] .card h4,
html[lang="vi"] .revenue-item h4,
html[lang="vi"] .btn,
html[lang="en"] .nav > li > a,
html[lang="en"] .tab-btn,
html[lang="en"] .footer-col a,
html[lang="en"] .breadcrumb,
html[lang="en"] .section-title,
html[lang="en"] .feature-list li,
html[lang="en"] .stat-item .label,
html[lang="en"] .solution-panel h3,
html[lang="en"] .card h3,
html[lang="en"] .card h4,
html[lang="en"] .revenue-item h4,
html[lang="en"] .btn {
  overflow-wrap: normal;
  word-break: normal;
}

html.lang-switching,
html.lang-switching * {
  transition: none !important;
}