body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    background-color: #fff;
    max-width: 600px;
    width: 100%;
    margin: 20px;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.header {
    background-color: #2b6aa0;
    color: white;
    padding: 10px;
    text-align: center;
    border-radius: 8px 8px 0 0;
}

.header p {
    margin-bottom: 7px;
    line-height: 1.5;
}

.question {
    margin: 20px 0;
}

.btn {
    display: block;
    width: 100%;
    padding: 10px;
    background-color: #2b6aa0;
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 4px;
    margin-top: 20px;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #2b6aa0;
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
}

.radio-group {
    display: flex;
    flex-direction: column;
}

.radio-group label {
    margin-bottom: 10px;
    padding: 10px;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.radio-group input[type="radio"] {
    margin-right: 10px;
}

.success-container {
    background-color: #fff;
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.success-header {
    background-color: #428bca;
    color: white;
    padding: 10px;
    text-align: center;
    border-radius: 8px 8px 0 0;
}

.success-message {
    margin: 20px 0;
    font-size: 16px;
}

.success-button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #428bca;
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    margin-top: 20px;
}

.success-button:hover {
    background-color: #2b6aa0;
}

/* フィードバックページのスタイル */
.feedback-container {
    background-color: #fff;
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.feedback-header {
    background-color: #428bca;
    color: white;
    padding: 10px;
    text-align: center;
    border-radius: 8px 8px 0 0;
}

.star-rating {
    direction: rtl;
    unicode-bidi: bidi-override;
    display: flex;
    justify-content: center;
    font-size: 2em;
}

.star-rating input {
    display: none;
}

.star-rating label {
    color: #ddd;
    font-size: 2em;
    cursor: pointer;
}

.star-rating input:checked ~ label,
.star-rating input:hover ~ label,
.star-rating label:hover ~ label {
    color: #FFD700;
}

.large-textarea {
    width: 100%;
    height: 100px;
    font-size: 16px;
    padding: 10px;
    box-sizing: border-box;
    resize: none;
}

.footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    background-color: #2b6aa0;
    color: #f0f0f0;
    padding: 10px 0;
  }

  .footer a {
    color: #f0f0f0;
    text-decoration: none;
    margin: 10px;
  }



/* メディアクエリでモバイル対応 */
@media screen and (max-width: 600px) {
    .container {
        padding: 15px;
        margin: 2px;
        position: absolute;
        top: 10px;
        left: 50%;
        transform: translateX(-50%);
        max-width: 90%; 
    }

    .header, .success-header, .feedback-header {
        padding: 8px;
        padding-top: 5px;
    }

    .btn, .success-button {
        padding: 8px;
    }

    .radio-group label {
        font-size: 14px;
        padding: 8px;
    }

    .large-textarea {
        height: 80px;
        font-size: 14px;
    }
}