body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #D4D0C8;
    color: #000000;
}

#header {
    background-color: #000080;
    color: white;
    padding: 10px;
    border-bottom: 2px solid #C0C0C0;
    height: 60px;
    position: relative;
}

#footer {
    background-color: #D4D0C8;
    color: #808080;
    padding: 10px;
    border-top: 2px solid #C0C0C0;
    font-size: 12px;
    clear: both;
}

#container {
    width: 100%;
    overflow: hidden;
}

#sidebar {
    float: left;
    width: 150px;
    background-color: #D4D0C8;
    padding: 10px;
    border-right: 1px solid #808080;
    border-bottom: 1px solid #808080;
    min-height: 500px;
}

#main-content {
    margin-left: 170px; /* 150px + 20px margin */
    padding: 20px;
    background-color: white;
    border: 1px solid #808080;
    min-height: 500px;
    overflow: visible;
}

@media screen and (min-width: 1024px) {
    #container {
        max-width: 1200px;
        margin: 0 auto;
    }

    #sidebar {
        width: 180px;
    }

    #main-content {
        margin-left: 200px;
    }
}

.nav-link {
    display: block;
    padding: 5px;
    margin-bottom: 5px;
    background-color: #C0C0C0;
    text-decoration: none;
    color: black;
    font-weight: bold;
    border: 1px solid #808080;
}

.nav-link:hover {
    background-color: #000080;
    color: white;
}

h1 {
    color: #000080;
    font-size: 24px;
    border-bottom: 1px solid #C0C0C0;
    padding-bottom: 5px;
    margin-top: 0;
}

.button {
    background-color: #C0C0C0;
    border: 2px outset #FFFFFF;
    color: black;
    padding: 4px 15px;
    font-weight: bold;
    cursor: pointer;
    font-family: Arial;
    font-size: 14px;
}

.button:hover {
    background-color: #D0D0D0;
}

.compatibility-note {
    text-align: center;
    font-size: 11px;
    margin-top: 30px;
    padding: 5px;
    background-color: #C0C0C0;
    border: 1px solid #808080;
}

.content-box {
    background-color: white;
    border: 1px solid #D0D0D0;
    padding: 15px;
    margin-bottom: 15px;
}

.warning-box {
    background-color: #FFFFCC;
    border: 1px solid #FFCC00;
    padding: 10px;
    font-size: 12px;
    margin-top: 15px;
}

.resource-grid {
    width: 100%;
    margin-top: 20px;
}

.resource-grid td {
    vertical-align: top;
    padding: 10px;
}

.resource-grid .box {
    background-color: #F0F0F0;
    border: 1px solid #808080;
    padding: 10px;
    height: 100%;
}

.resource-grid h3 {
    color: #000080;
    font-size: 16px;
    margin-top: 0;
    border-bottom: 1px solid #C0C0C0;
    padding-bottom: 5px;
}

.logo-container {
    position: absolute;
    top: 10px;
    left: 10px;
}

.title-container {
    position: absolute;
    top: 15px;
    left: 85px;
}

.marquee {
    background-color: #000080;
    color: #FFFFFF;
    padding: 3px 0;
    font-size: 12px;
    margin-bottom: 10px;
}