.modal.hidden { display: none; }
.modal { position: fixed; inset: 0; z-index: 1000; }

/* backdrop */
.modal__backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(2px);
}

/* dialog */
.modal__dialog {
  position: relative;
  max-width: 1200px;
  width: calc(100% - 2rem);
  margin: 5vh auto;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* close button */
.modal__close {
  position: absolute;
  top: 10px; right: 10px;
  font-size: 1.5rem;
  border: none; background: transparent; cursor: pointer;
}

/* iframe */
.modal__iframe {
  width: 100%;
  height: 70vh;
  border: none;
}