.wallpaper-upload-container {
    max-width: 600px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}
.form-group input[type="text"] {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.2);
    color: #fff;
}
.drop-zone {
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}
.drop-zone:hover {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.05);
}
.drop-zone input[type="file"] {
    display: none;
}
button#submit-upload-btn {
    background: #3b82f6;
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    width: 100%;
}
button#submit-upload-btn:hover {
    background: #2563eb;
}
#upload-message {
    margin-top: 15px;
    text-align: center;
}