/* Shared tool header: prevent mobile horizontal overflow */
.header {
  flex-wrap: wrap !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
}
.header-controls {
  display: flex !important;
  flex-wrap: wrap !important;
  align-items: center !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
}
.theme-toggle { flex-shrink: 0 !important; }

@media (max-width: 768px) {
  html, body { overflow-x: hidden !important; max-width: 100% !important; }
  .header {
    padding: 0.65rem 0.75rem !important;
    gap: 0.5rem !important;
  }
  .header-controls {
    width: 100% !important;
    justify-content: flex-start !important;
    gap: 0.35rem !important;
  }
  .header-controls .btn,
  .header-controls .utility-btn {
    padding: 0.35rem 0.5rem !important;
    font-size: 0.72rem !important;
    gap: 0.3rem !important;
    white-space: nowrap !important;
  }
  .header-controls .theme-toggle {
    width: 34px !important;
    height: 34px !important;
  }
}

/* Icon-only action buttons on very narrow phones so Format/Minify/Copy/Clear/theme fit */
@media (max-width: 420px) {
  .header-controls .btn {
    font-size: 0 !important;
    line-height: 0 !important;
    gap: 0 !important;
    padding: 0.5rem 0.55rem !important;
  }
  .header-controls .btn i {
    font-size: 0.9rem !important;
    line-height: 1 !important;
  }
  .header-controls .btn .usage-count-short {
    font-size: 0.7rem !important;
    line-height: 1 !important;
    margin-left: 0.2rem !important;
  }
}