.lesson-import-dialog { width:min(520px,calc(100vw - 32px)); box-sizing:border-box; color:#edf2f7; background:#1b2430; border:1px solid #7790ac; border-radius:12px; padding:22px; overflow-wrap:anywhere; }
.lesson-import-dialog::backdrop { background:rgb(0 0 0 / .65); }
.lesson-import-dialog h2 { margin-top:0; }
.lesson-import-actions { display:flex; justify-content:flex-end; gap:10px; margin-top:18px; }
.lesson-import-actions button { font:inherit; padding:9px 14px; cursor:pointer; }
.lesson-import-notice { position:fixed; right:16px; bottom:16px; z-index:10000; max-width:min(420px,calc(100vw - 64px)); margin:0; padding:12px 16px; border:1px solid #7790ac; border-radius:9px; color:#edf2f7; background:#1b2430; box-shadow:0 4px 18px #0004; pointer-events:none; }