.em-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.em-builder .field { min-width: 0; }
.em-builder #em-output { margin-top: 18px; }
.em-builder #em-message { width: 100%; line-height: 1.55; resize: vertical; }
.em-builder #em-subject { width: 100%; }
.em-builder [hidden] { display: none !important; }
@media (max-width: 560px) { .em-grid { grid-template-columns: minmax(0, 1fr); } }