.modal{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.4);display:none}.modal.show{display:flex;align-items:flex-end}.sheet{background:#fff;width:100%;max-width:760px;margin:auto;border-radius:30px 30px 0 0;padding:24px;max-height:88vh;overflow:auto}