@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&display=swap');

:root {
    --max-width: 900px;
    --primary-color: #34D399;
}

body {
    font-family: 'Montserrat', sans-serif;
}

.container {
    display: flex;
    flex-direction: column;
    width: var(--max-width);
    margin: auto;

}

button {
    background-color: var(--primary-color);
    border: none;
    height: 30px;
    border-radius: 1rem;
}

/* heading */
.heading {
    color: var(--primary-color);
    text-align: center;

}

/* body */

.label-bill-amount {
    margin: auto;
    padding: 0.75rem 0rem;
    font-size: large;
    font-weight: 600;

}

input {
    border: 3px solid var(--primary-color);
    border-radius: 1rem;
    width: 40%;
    height: 30px;

    margin: 0.5rem auto;

}

.div-cash-given {
    display: flex;
    flex-direction: column;
    width: var(--max-width);
    margin: 0.5rem 0rem;
}

.label-cash-given {
    display: block;
    width: 100%;
    text-align: center;
    margin: 0.5rem 0rem;
    font-size: large;
    font-weight: 600;

}

#cash-given {
    display: block;

}

#next {
    width: 20%;
    margin: 1rem auto;
    color: white;
}

#check-btn {
    display: block;
    width: 20%;
    margin: 1rem auto;
    color: white;

}

/* change table */
.div-change-table {
    margin: auto;
}

.change-table {
    border: 2px solid var(--primary-color);
}

.change-table caption {
    font-size: x-large;
    font-weight: 400;
}

.change-table td,
th {
    border: 2px solid var(--primary-color);
    padding: 0.5rem 1rem;
}