body {
    font-family: Arial, sans-serif;
    background-color: #000000;
    margin: 0;
    padding: 20px;
}

.upload-container {
    max-width: 600px;
    margin: 0 auto;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}

h1 {
    font-size: 24px;
    margin-bottom: 20px;
}

.drop-zone {
    background-color: #f0f0f0;
    border: 2px dashed #007bff;
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 20px;
    cursor: pointer;
    position: relative;
}

.drop-zone-hover {
    background-color: #e0e0e0;
}

.drop-zone-text {
    color: #007bff;
    font-size: 16px;
    font-weight: bold;
}

.file-input {
    display: none;
}

button {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #6a0606;
}

.error-container {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.success-container {
    background-color: #d4edda;
    color: #155724;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.success-container ul {
    list-style-type: none;
    padding: 0;
}

.file-list {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
    text-align: left;
}

.file-list li {
    background-color: #f0f0f0;
    border: 1px solid #ccc;
    padding: 8px;
    margin-bottom: 5px;
    border-radius: 5px;
    color: #333;
}