body {
    font-family: Arial, sans-serif;
    background-color: #f4f6f8;
    display: flex;
    justify-content: center;
    padding: 20px;
}

.container {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0px 5px 15px rgba(0,0,0,0.2);
    max-width: 900px;
    width: 100%;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.features-grid label {
    font-size: 14px;
    color: #555;
}

.features-grid input {
    padding: 8px;
    font-size: 14px;
    border-radius: 5px;
    border: 1px solid #ccc;
    width: 100%;
}

.model-choice {
    margin-bottom: 20px;
}

.model-choice label {
    margin-right: 20px;
    font-weight: bold;
    cursor: pointer;
}

button {
    width: 100%;
    padding: 12px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
}

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

#result {
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
    color: #333;
    text-align: center;
}