:root{ --z-header:9999; --z-modal:10050; }

/* If you know the provider domain, keep this line (adjust domain): */
iframe[src*="culturemonkey"],
iframe[src*="typeform"],
iframe[src*="hubspot"] { z-index: var(--z-modal) !important; position: fixed !important; }

/* Common overlay containers (best-effort, harmless if absent) */
.modal-overlay, .popup-overlay, .cm-overlay,
.fancybox-container, .hs-modal, .t-popup,
.ReactModal__Overlay, .Popup__overlay {
  z-index: calc(var(--z-modal) - 1) !important;
}
.modal, .popup, .t-popup__container, .ReactModal__Content {
  z-index: var(--z-modal) !important;
}