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

.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background: white;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

h1, h2 {
    text-align: center;
    color: #333;
}

#plan-container {
    margin-top: 20px;
}

.day {
    background: #e9f2ff;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
}

.day h3 {
    margin: 0 0 5px;
    color: #007bff;
}

.day p {
    margin: 0;
    font-size: 14px;
    color: #555;
}