/* General Reset */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f7f4;
    margin: 0;
    color: #333;
}

/* Center Page Content */
#container {
    width: 90%;
    max-width: 1000px;
    margin: 20px auto; /* Centering happens here with auto margins */
    background-color: #fff;
    box-shadow: 0 0 15px rgba(0,0,0,0.1);
}

/* Header Styling */
#main-header {
    background-color: #2d5a27;
    color: white;
    padding: 40px;
    text-align: center;
}

/* Navigation Links Styling */
#navbar {
    background-color: #3e7d37;
    text-align: center;
}

#navbar a {
    display: inline-block;
    color: white;
    padding: 15px 25px;
    text-decoration: none;
    font-weight: bold;
    transition: background 0.3s;
}

#navbar a:hover {
    background-color: #4e9a46;
}

/* Floating Sections for Columns */
#content-wrapper {
    padding: 20px;
}

#about-us {
    float: left;
    width: 65%;
    padding-right: 5%;
}

#sidebar {
    float: left;
    width: 30%;
    background-color: #f9f9f9;
    padding: 15px;
    border-left: 4px solid #2d5a27;
}

/* Clearfix to prevent footer from jumping up */
.clearfix {
    clear: both;
}

/* Footer Styling */
#main-footer {
    background-color: #222;
    color: #ccc;
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
}

/* Media Query for Mobile Devices */
@media (max-width: 768px) {
    #about-us, #sidebar {
        float: none; /* Remove floats for vertical stacking */
        width: 100%;
        padding-right: 0;
    }
    
    #container {
        width: 95%;
        margin: 5px auto;
    }

    #main-header {
        padding: 20px;
    }
}