/* Page background */
body {
    background: #555;
    font-family: Arial, sans-serif;
}

/* Centered page container */
#page {
    width: 1000px;
    margin-left: auto;
    margin-right: auto;
    background: #fff;
}

/* Header section */
header {
    background: #3e2723;
    color: white;
    padding: 20px;
    text-align: center;
}

.tagline {
    font-style: italic;
}

/* Navigation links */
nav a {
    color: #ffcc80;
    text-decoration: none;
    font-weight: bold;
    margin: 0 10px;
}

nav a:hover {
    text-decoration: underline;
}

/* About section */
#about {
    padding: 20px;
}

/* Two-column layout */
#columns {
    overflow: hidden;
    padding: 20px;
}

.column {
    width: 48%;
    float: left;
    margin-right: 4%;
}

.column:last-child {
    margin-right: 0;
}

/* Footer */
footer {
    background: #3e2723;
    color: white;
    text-align: center;
    padding: 15px;
}

/* MEDIA QUERY */
@media screen and (max-width: 768px) {

    #page {
        width: 100%;
    }

    header {
        padding: 15px;
    }

    nav a {
        display: block;
        margin: 10px 0;
    }

    .column {
        width: 100%;
        float: none;
        margin-right: 0;
    }

    body {
        background: #222;
    }

    footer {
        font-size: 14px;
    }
}