body {
    font-family: 'Times New Roman', Times, serif;
    background-color: #c0c0c0;
    color: #000;
    margin: 0;
    padding: 0;
    background-image: url('https://www.transparenttextures.com/patterns/lined-paper.png');
}

#login-view {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    border: 2px solid #000;
    padding: 20px;
    background-color: #fff;
}

#login-view h2 {
    text-align: center;
}

#login-view input {
    width: 100%;
    padding: 5px;
    margin-bottom: 10px;
}

#login-view button {
    width: 100%;
}

.error-message {
    color: red;
    text-align: center;
    margin-top: 10px;
}

header {
    background-color: #000080;
    color: #c0c0c0;
    padding: 10px;
    border-bottom: 2px solid #000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    margin: 0;
    font-size: 24px;
}

nav button {
    background-color: #c0c0c0;
    border: 2px solid #000;
    padding: 5px 10px;
    font-size: 16px;
    cursor: pointer;
}

nav button:hover {
    background-color: #a0a0a0;
}

main {
    padding: 20px;
}

#player {
    background-color: #c0c0c0;
    border: 2px solid #000;
    padding: 10px;
    margin-bottom: 20px;
}

#player h2 {
    margin-top: 0;
    font-size: 20px;
    border-bottom: 2px solid #000;
    padding-bottom: 5px;
}

#track-info {
    margin-bottom: 10px;
}

#controls {
    display: flex;
    justify-content: center;
}

#content {
    border: 2px solid #000;
    padding: 10px;
    background-color: #fff;
}

#tracks-view, #playlists-view, #upload-view {
    margin-bottom: 20px;
}

h2 {
    font-size: 20px;
    border-bottom: 2px solid #000;
    padding-bottom: 5px;
    margin-top: 0;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

li {
    padding: 5px;
    border-bottom: 1px solid #ccc;
    cursor: pointer;
}

li:hover {
    background-color: #eee;
}

footer {
    background-color: #000080;
    color: #c0c0c0;
    padding: 10px;
    text-align: center;
    border-top: 2px solid #000;
    position: fixed;
    bottom: 0;
    width: 100%;
}

input[type="text"], input[type="file"], input[type="password"] {
    width: 300px;
    padding: 5px;
    margin-bottom: 10px;
}

button {
    background-color: #c0c0c0;
    border: 2px solid #000;
    padding: 5px 10px;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background-color: #a0a0a0;
}