body {
    font-family: Arial;
    background: #f4f4f4;
}

.pos-container {
    display: flex;
    gap: 20px;
    padding: 20px;
}

.productos {
    width: 60%;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.producto-btn {
    padding: 20px;
    font-size: 16px;
    cursor: pointer;
    background: #222;
    color: #fff;
    border: none;
}

.producto-btn:hover {
    background: #444;
}

.caja {
    width: 40%;
    background: #fff;
    padding: 20px;
}

table {
    width: 100%;
    margin-bottom: 10px;
}

.total, .vuelto {
    font-size: 20px;
    margin: 10px 0;
}

.btn-pagar {
    width: 100%;
    padding: 15px;
    background: green;
    color: white;
    border: none;
    font-size: 18px;
}
