body {
    background: #f0f4f8;
    font-family: 'Roboto', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
    max-width: 500px;
    width: 100%;
}

h1,
h2,
h3 {
    text-align: center;
    color: #333333;
}

form {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: #555555;
    font-weight: bold;
}

select,
input {
    width: 100%;
    padding: 10px;
    border: 1px solid #cccccc;
    border-radius: 5px;
    font-size: 16px;
    box-sizing: border-box;
}

button {
    background: #007BFF;
    color: white;
    border: none;
    border-radius: 5px;
    padding: 10px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
    margin-top: 10px;
}

button:hover {
    background: #0056b3;
}

#meal-summary {
    list-style-type: none;
    padding: 0;
}

#meal-summary li {
    background: #f8f8f8;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

#total-calories {
    color: #007BFF;
    font-weight: bold;
}