body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.container {
    max-width: 800px;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #0056b3;
}

.plan-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

input[type="text"], input[type="number"] {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

label {
    font-weight: bold;
}

#plan-form {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}