* {
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background-color: #f4f7f6;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.contenedor {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    text-align: center;
    width: 100%;
    max-width: 400px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

input[type="file"] {
    padding: 10px;
    border: 1px dashed #ccc;
    border-radius: 4px;
    cursor: pointer;
}

button {
    background-color: #007BFF;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #0056b3;
}