.contact {
    padding-bottom: 100px;
}

.contact-content {
    position: relative;
    z-index: 3;
}

.contact-title {
    text-align: center;
    margin-block: 100px 60px;
}

/* Form Styles */
.contact-form {
    width: 100%;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 40px;
}

.form-label {
    display: block;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.required {
    color: #FFFFFF;
    font-size: 14px;
    font-weight: 500;
    margin-left: 8px;
    padding: 4px 8px;
    line-height: 1.0;
    background: linear-gradient(to right, #009BBF 69%, #63A276 100%);
    border-radius: 4px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 16px;
    border-radius: 8px;
    background-color: #F5F5F5;
    font-size: 16px;
    color: #333;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #009BBF;
    background-color: #FFFFFF;
    box-shadow: 0 0 0 3px rgba(0, 155, 191, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 240px;
}

.form-fieldset {
    border: none;
    padding: 0;
    margin: 0;
}

.form-legend {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    background-color: #FFFFFF;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.radio-label:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.radio-label input[type="radio"] {
    margin-right: 12px;
    width: 20px;
    height: 20px;
    border: 1px solid #A5A5A5;
    border-radius: 50%;
    background-color: #FFFFFF;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
    display: inline-block;
    vertical-align: middle;
}

.radio-label input[type="radio"]:checked {
    background-color: #009BBF;
    border-color: #009BBF;
}

.radio-label input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background-color: #FFFFFF;
    border-radius: 50%;
}

.radio-text {
    font-size: 14px;
    font-weight: 500;
}

.form-submit {
    text-align: center;
    margin-top: 40px;
}

.contact-btn {
    padding: 12px 170px;
    margin: 0 auto;
}

.contact-btn::after {
    display: none;
}

/* バリデーションエラー表示用スタイル */
.form-error {
    color: #e74c3c;
    font-size: 14px;
    margin-top: 8px;
    display: block;
}

.form-input.error,
.form-select.error,
.form-textarea.error {
    border: 2px solid #e74c3c;
    background-color: #fdf2f2;
}

.radio-group.error {
    border: 2px solid #e74c3c;
    border-radius: 8px;
    padding: 8px;
    background-color: #fdf2f2;
}

.form-fieldset.error {
    border: 2px solid #e74c3c;
    border-radius: 8px;
    padding: 8px;
    background-color: #fdf2f2;
}

/* セレクトボックスのスタイル改善 */
.form-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><polyline points='2,4 6,8 10,4' fill='none' stroke='%23393636' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/></svg>");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 12px 12px;
    padding-right: 40px;
}

.form-select:focus {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><polyline points='2,4 6,8 10,4' fill='none' stroke='%23009BBF' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/></svg>");
}

.form-select.error {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><polyline points='2,4 6,8 10,4' fill='none' stroke='%23e74c3c' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/></svg>");
}

/* プレースホルダーオプションのスタイル */
.form-select option[value=""] {
    color: #999;
    font-style: italic;
}

/* 未選択時のセレクトボックスのスタイル */
.form-select:invalid {
    color: #999;
}

.form-select:valid {
    color: #333;
}


/* レスポンシブ対応 */
@media (max-width: 1024px) {
    .contact {
        padding-bottom: 80px;
    }

    .contact-title {
        margin-block: 60px 40px;
    }

    .form-group {
        margin-bottom: 32px;
    }

    .form-label {
        font-size: 15px;
    }

    .form-input,
    .form-select,
    .form-textarea {
        padding: 14px;
        font-size: 15px;
    }

    .form-select {
        padding-right: 40px;
    }

    .form-textarea {
        min-height: 200px;
    }

    .radio-group {
        gap: 10px;
    }

    .radio-text {
        font-size: 15px;
    }

    .contact-btn {
        padding: 14px 120px;
        font-size: 15px;
    }
}

@media (max-width: 768px) {
    .contact {
        padding-bottom: 60px;
    }

    .contact-title {
        margin-block: 60px 40px;
    }

    .form-group {
        margin-bottom: 24px;
    }

    .form-label {
        font-size: 14px;
        margin-bottom: 8px;
    }

    .required {
        font-size: 12px;
        padding: 2px 6px;
    }

    .form-input,
    .form-select,
    .form-textarea {
        padding: 12px;
        font-size: 14px;
        border-radius: 6px;
    }

    .form-select {
        padding-right: 36px;
    }

    .form-textarea {
        min-height: 160px;
    }

    .form-legend {
        font-size: 14px;
        margin-bottom: 8px;
    }

    .radio-group {
        gap: 8px;
    }

    .radio-label input[type="radio"] {
        width: 18px;
        height: 18px;
        margin-right: 10px;
    }

    .radio-label input[type="radio"]:checked::after {
        width: 6px;
        height: 6px;
    }

    .radio-text {
        font-size: 13px;
    }

    .form-submit {
        margin-top: 32px;
    }

    .contact-btn {
        padding: 12px 80px;
        font-size: 14px;
        width: 100%;
        max-width: 280px;
    }
}