body {
    background-color: #008080;
    font-family: "MS Sans Serif", "Pixelated MS Sans Serif", Arial, sans-serif;
    font-size: 16px;
    color: #212121;
    margin: 0;
    padding: 20px;
}

.window {
    background: #c0c0c0;
    border: 2px solid;
    border-top-color: #ffffff;
    border-left-color: #ffffff;
    border-right-color: #000000;
    border-bottom-color: #000000;
    box-shadow: 2px 2px 5px rgba(0,0,0,0.5);
    padding: 3px;
    margin-bottom: 20px;
}

.window-header {
    background: #000080;
    color: #ffffff;
    padding: 3px 5px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.window-body {
    padding: 10px;
}

ul.tree-view {
    list-style: none;
    padding-left: 20px;
}

ul.tree-view li a {
    text-decoration: none;
    color: #000080;
}

ul.tree-view li a:hover {
    background-color: #000080;
    color: #ffffff;
}

#services-window {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    z-index: 1000;
}

#start-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #c0c0c0;
    border-top: 2px solid #ffffff;
    padding: 3px;
    display: flex;
    align-items: center;
}

#start-button {
    background: #c0c0c0;
    border: 2px solid;
    border-top-color: #ffffff;
    border-left-color: #ffffff;
    border-right-color: #000000;
    border-bottom-color: #000000;
    padding: 5px 10px;
    font-weight: bold;
    cursor: pointer;
}

#start-button:active {
    border-top-color: #000000;
    border-left-color: #000000;
    border-right-color: #ffffff;
    border-bottom-color: #ffffff;
}

.close-button {
    background: #c0c0c0;
    border: 1px solid;
    border-top-color: #ffffff;
    border-left-color: #ffffff;
    border-right-color: #000000;
    border-bottom-color: #000000;
    color: #000000;
    font-family: "Marlett", "MS Sans Serif";
    width: 16px;
    height: 16px;
    font-size: 12px;
    line-height: 14px;
    text-align: center;
    cursor: pointer;
}