:root {
    --primary-color: #4285f4;
    --secondary-color: #34a853;
    --background-color: #f4f4f4;
    --text-color: #333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: var(--background-color);
    color: var(--text-color);
}

.container {
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 1rem;
    margin-bottom: 20px;
}

main {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

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

input, select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

button {
    display: block;
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: var(--secondary-color);
}

#recommendations {
    margin-top: 20px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 4px;
}

.hidden {
    display: none;
}

#history {
    margin-top: 20px;
    background-color: #f0f0f0;
    padding: 15px;
    border-radius: 4px;
}

.actions {
    display: flex;
    justify-content: space-between;
    margin-top: 15px;
}

.actions button {
    width: 48%;
}

footer {
    text-align: center;
    margin-top: 20px;
    padding: 10px;
    background-color: var(--primary-color);
    color: white;
}

@media (max-width: 600px) {
    .container {
        width: 95%;
        padding: 10px;
    }

    .actions {
        flex-direction: column;
    }

    .actions button {
        width: 100%;
        margin-bottom: 10px;
    }
}