:root{--bg: #0f172a;--card: #0b1220;--accent: #7c3aed;--muted: #94a3b8;--cell: #0b1226}body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI Emoji","Noto Color Emoji","Apple Color Emoji",Roboto,Helvetica Neue,Arial,sans-serif;background:linear-gradient(180deg,var(--bg),#071020);color:#e6eef8;height:100vh;display:flex;align-items:center;justify-content:center}.app{width:920px;max-width:95vw}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.header h1{margin:0;font-size:20px}.header .meta{color:var(--muted);font-size:14px}.container{display:flex;gap:20px}.grid-card{background:var(--card);padding:14px;border-radius:12px;box-shadow:0 6px 18px #02061799}.grid{display:grid;grid-template-columns:repeat(10,40px);grid-template-rows:repeat(10,40px);gap:6px}.cell{width:60px;height:60px;background:var(--cell);border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:clamp(14px,2vw,22px);text-align:center;white-space:normal;word-break:break-word;text-overflow:ellipsis;overflow:hidden;white-space:nowrap;-webkit-user-select:none;user-select:none;transition:transform .08s;font-family:"Segoe UI Emoji","Noto Color Emoji","Apple Color Emoji",sans-serif}.cell:hover{transform:translateY(-2px)}.cell.empty{color:var(--muted);font-size:12px}.sidebar{width:240px;display:flex;flex-direction:column;gap:10px}.panel{background:var(--card);padding:12px;border-radius:10px}.button{padding:8px 10px;border-radius:8px;background:var(--accent);color:#fff;border:none;cursor:pointer}.small{font-size:13px;padding:6px 8px}.history-list{max-height:300px;overflow:auto;color:var(--muted);font-size:13px}.history-item{padding:6px 0;border-bottom:1px solid rgba(255,255,255,.02)}.count-bubble{background:#ffffff0f;padding:6px;border-radius:8px;text-align:center}.disabled{opacity:.4;pointer-events:none}