body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    width: 100%;
}

h1 {
    color: #333;
    text-align: center;
    margin-bottom: 1rem;
}

p {
    text-align: center;
    color: #666;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #333;
}

input[type="file"] {
    width: 100%;
    padding: 0.5rem;
    border: 2px dashed #007bff;
    border-radius: 4px;
    background-color: #f9f9f9;
    transition: border-color 0.3s;
}

input[type="file"]:hover {
    border-color: #0056b3;
}

.help {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: #666;
}

.file-count {
    margin-top: 0.75rem;
    color: #555;
    font-size: 0.95rem;
}

.summary {
    margin: 1rem 0;
    padding: 1rem;
    background-color: #f1f7ff;
    border-radius: 6px;
    border: 1px solid #cfe0ff;
    color: #1b3a8a;
}

.summary p {
    margin: 0.25rem 0;
}

.btn {
    background-color: #007bff;
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #0056b3;
}

.alert {
    background-color: #d4edda;
    color: #155724;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    border: 1px solid #c3e6cb;
}

.alert.success {
    background-color: #d4edda;
    color: #155724;
    border-color: #c3e6cb;
}

.alert.error {
    background-color: #f8d7da;
    color: #721c24;
    border-color: #f5c6cb;
}

.info {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #eee;
}

.info h2 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

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

.info li {
    padding: 0.25rem 0;
    color: #666;
}