.sudoku-modal{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;background:rgba(0,0,0,0);opacity:0;transition:opacity .22s ease,background .22s ease}.sudoku-modal__panel{width:min(420px,calc(100vw - 32px));background:#fff;border-radius:12px;padding:18px 16px;box-shadow:0 10px 30px rgba(0,0,0,.25);transform:translateY(8px) scale(.98);opacity:0;transition:transform .22s ease,opacity .22s ease}.sudoku-modal.open{opacity:1;background:rgba(0,0,0,.5)}.sudoku-modal.open .sudoku-modal__panel{opacity:1;transform:translateY(0) scale(1)}.sudoku-modal__actions{display:flex;gap:10px;justify-content:center;margin-top:14px}@media (prefers-reduced-motion:reduce){.sudoku-modal,.sudoku-modal__panel{transition:none}}