body {
    font-family: sans-serif;
    max-width: 800px;
    margin: 20px auto;
}

h1, h2 {
    text-align: center;
}

form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

input, select, button {
    padding: 8px;
    font-size: 1rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    border: 1px solid #ccc;
    padding: 10px;
    text-align: center;
}

thead {
    background-color: #f8f8f8;
}