body {
    font-family: 'Helvetica Neue', sans-serif;
    margin: 0;
    padding: 0;
    background: #fff;
    color: #333;
}

header {
    background-color: #e60012;
    color: #fff;
    padding: 1rem;
    text-align: center;
}

main {
    padding: 2rem 1rem;
}

.reservation-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.reservation-form label {
    display: flex;
    flex-direction: column;
    font-weight: bold;
}

.reservation-form input,
.reservation-form select,
.reservation-form textarea {
    margin-top: 0.4rem;
    padding: 0.8rem;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.options {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.5rem;
}

.reservation-form button {
    background-color: #e60012;
    color: #fff;
    padding: 0.8rem;
    border: none;
    font-size: 1rem;
    border-radius: 4px;
    cursor: pointer;
}

.reservation-form button:hover {
    opacity: 0.9;
}

.required {
    color: #e60012;
    margin-left: 0.3rem;
}

.note {
    color: #e60012;
    font-size: 0.95rem;
    margin-top: 1rem;
    text-align: center;
    line-height: 1.6;
}

/* レスポンシブ対応 */
@media (max-width: 600px) {
    .options {
        flex-direction: column;
    }
}