@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans&display=swap');

body {
    font-family: 'IBM Plex Sans', sans-serif;
    text-align: center;
}

:root {
    --primary-color: #155e75;
    --secondary-color: white;
}

.container {
    display: flex;
    flex-direction: column;
    min-height: 80vh;
    max-width: 900px;
    margin: 0rem auto;
    padding: 1rem;
}

.heading {
    font-family: inherit;
    font-weight: 1rem;
    font-size: 40px;

}

.description {
    font-size: 20px;
}

div {
    display: block;
}

.input-label {
    display: block;
    margin: 1rem auto;
    font-size: 20px;
    font-weight: bold;
}
.input {
    display: block;
    margin: 1rem auto;
    border-radius: 0.5rem;
    padding: 1rem;
    width: 30%;
    border: 3px solid var(--primary-color);
}

#btn-check {
    padding: 1rem;
    border-radius: 1rem;
    background-color: var(--primary-color);
    color: var(--secondary-color);
    font-size: large;
    margin: 1rem auto;
    width: 15%;
}

.change-table {
    border: 2px solid var(--primary-color);
    border-collapse: collapse;
    margin: auto;
    width: 85%;
    text-align: justify;
}

.change-table caption {
    margin: 1rem auto;
    font-size: x-large;
    font-weight: bold;
}

th, td {
    border: 2px solid var(--primary-color);
    width: 0%;
    border-collapse: collapse;
    padding: 0.4rem;
}