modal.html
<div class="modal-overlay visible" data-action="closeModalBackground">
<div class="modal-content">
<form id="modal-form">
<h2 class="card-title">{{modal_title}}</h2>
{{form_content}}
<div class="form-actions">
<button type="button" class="button-secondary" data-action="closeModal">ยกเลิก</button>
<button type="submit" class="button-primary">บันทึก</button>
</div>
</form>
</div>
</div>