.number-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:3px;width:min(100%,434px);margin:4px auto 18px;background:#f0f3f9;padding:7px;border-radius:13px}
.number-cell{aspect-ratio:1;min-width:0;border:1px solid #d6dee9;border-radius:7px;display:grid;place-items:center;background:#fff;color:#293c52;font-size:clamp(15px,4.2vw,23px);font-weight:800;font-variant-numeric:tabular-nums}
.number-cell.operator{background:#f6eabf;border-color:#ead9a8;color:#5f542e}
.number-cell.blank{border:0;background:transparent}
button.number-cell.hole{cursor:pointer;border:2px dashed #a8bce1;color:#4777c3;background:#eef4ff}
button.number-cell.hole.is-selected{border:3px solid #4777c3;background:#dceaff}
button.number-cell.hole.is-filled{border-style:solid;color:#346cb9;background:#e5f1ff}
.number-bank{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;max-width:460px;margin:0 auto}
.number-bank button{min-width:49px;min-height:48px;border-radius:10px;border:1px solid #bad4cc;background:#e4f5eb;color:#347255;font-size:20px;font-weight:850;box-shadow:0 2px #b9d4c0}
.number-bank button:disabled{opacity:.27;cursor:default}.number-bank button:not(:disabled):hover{border-color:#59a28c}
@media(max-width:360px){.number-grid{gap:2px;padding:3px}.number-bank button{min-width:41px;min-height:43px;font-size:17px}}