body {
    background-color: #1a1a1a;
    color: #fff;
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 0;
}
#main-content {
    margin-top: 20%;
}
.red-text {
    color: red;
}
.btn {
    background-color: #444;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 5px;
}
.btn:hover {
    background-color: #666;
}
.form-section {
    display: none;
    margin-top: 20px;
    padding: 20px;
    border: 1px solid #333;
    border-radius: 10px;
    width: 80%;
    max-width: 600px;
    margin: 20px auto;
    background-color: #222;
}
.upload-success {
    display: none;
    color: #00ff00;
}
input[type="text"], input[type="email"], input[type="file"], select {
    width: 80%;
    padding: 10px;
    margin: 10px 0;
    box-sizing: border-box;
    border-radius: 5px;
    border: 1px solid #333;
    background-color: #333;
    color: #fff;
}
input[type="file"] {
    border: none;
}
.btn-contact {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: #444;
    border: none;
    color: white;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
}
.btn-contact:hover {
    background-color: #666;
}