.matrix-calculator-container {
    max-width: 700px;
    margin: 0 auto;
}

.matrix-input {
    width: 70px;
    text-align: center;
    font-size: 1.1rem;
    padding: 8px 5px;
}

.matrix-display {
    min-width: 120px;
    text-align: center;
    border-radius: 10px;
    background: #fff;
}

.matrix-display span {
    min-width: 40px;
    display: inline-block;
}