:root {
    --main-color: #b3755c;
    --second-color: #4c757b;
    --white-shade: #ffffff;
    --dark-shade: #000000;
    --main-font: 'Calibri', 'Trebuchet MS', sans-serif;
    --second-font: 'Courier New';
}

* {
    font-family: var(--main-font);
}

header,
footer {
    background-color: var(--main-color);
    padding: 1em 0;
}

h1,
h2,
h3,
h4 {
    font-weight: bold;
}

h2 {
    padding-top: 0.33em;
}

footer a {
    text-decoration: none;
}

nav {
    background-color: var(--second-color);
    min-width: 100%;
}

.navbar {
    display: flex;
    flex-direction: row;
    justify-content: center;

}

nav li {
    list-style: none;
    padding: 0.5em 1em;
    margin: 0;
    font-size: large;
}

.nav-item a {
    text-decoration: none;
    color: var(--white-shade);
    font-size: l.33em;
}

.nav-item a:active {
    font-weight: bolder;
}

#banner {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

#banner>.col {
    flex: 1;
}

.call-to-action {
    display: flex;
    justify-content: center;
    flex-direction: column;
}

.call-to-action>.col {
    text-align: center;
    flex: 1;
    max-height: 4em;
    justify-content: center;
    align-items: center;
    font-size: 1.33vw;
}

.call-to-action>.col p {
    margin: 0;
}

#about p {
    font-size: 1.33em;
}

.list-group {
    list-style: none;
    text-align: left;
    margin: 0 1em;
    font-size: 1.33em;
}

#phonemap {
    display: none;
}

#pcmap {
    display: inherit;
    padding-bottom: 1em;
}

#pcsheet {
    display: block;
    margin: auto;
}

#phonesheet {
    display: none;
}

/* utilities */
.main-bg {
    background-color: var(--main-color);
    color: var(--dark-shadee);
}

.second-bg {
    background-color: var(--second-color);
    color: var(--white-shade);
}

.dark-shade {
    color: var(--dark-shade);
}

.white-shade {
    color: var(--white-shade);
}

.text-center {
    text-align: center;
}

/* breakpoints */
@media (max-width: 550px) {
    #brand img {
        max-width: 70%;
    }

    #phonemap {
        display: inherit;
        padding-bottom: 1em;
    }

    #pcmap {
        display: none;
        margin-bottom: 1em;
    }

    #banner {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    #banner>.col {
        flex: none;
        padding: 0.5em;
    }

    .call-to-action {
        display: flex;
        justify-content: center;
        flex-direction: column;
    }

    .call-to-action>.col {
        text-align: center;
        flex: 1;
        max-height: 5em;
        justify-content: center;
        align-items: center;
        font-size: 1.25em;
    }

    .whatsapp-btn {
        padding-top: 0.5em;
        max-width: 60%;
    }

    .call-to-action>.col p {
        margin: 0;
    }

    .list-group {
        list-style: none;
        text-align: left;
        margin: 0 1em;
        font-size: 1.33em;
    }

    footer {
        padding: 2em 0;
    }

    #pcsheet {
        display: none;
    }

    #phonesheet {
        display: inherit;
        margin: auto;
    }
}