:root{color-scheme:light dark}html,body,#root{height:100%;margin:0}.app-container{min-height:100%;position:relative;display:grid;place-items:center;background:#0f172a}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#02061799;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.modal{position:relative;z-index:10;width:min(92vw,560px);padding:24px;border-radius:12px;background:#fff;color:#0f172a;box-shadow:0 10px 30px #0003;text-align:center}.modal h1{margin:0 0 8px;font-size:1.5rem}.modal p{margin:0;font-size:1rem;opacity:.85}