body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #333;
}

label {
    font-weight: bold;
    color: #333;
}

input[type="text"], input[type="file"] {
    width: 100%;
    padding: 8px;
    margin: 8px 0;
    box-sizing: border-box;
    border: 2px solid #ccc;
    border-radius: 4px;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 10px;
}

button:hover {
    background-color: #45a049;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

input[type="file"] {
    padding: 5px;
}

input::placeholder {
    color: #999;
}

.alert {
    background-color: #ffdddd;
    color: red;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
}

.success {
    background-color: #ddffdd;
    color: green;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #c3e6cb;
    border-radius: 4px;
}