/* ==========================================
   Contact Page Styles
   ========================================== */

.contact-section {
    padding: 120px 0 80px;
    background-color: #ffffff;
    min-height: 100vh;
}

.contact-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    font-family: 'Noto Serif JP', 'Yu Mincho', serif;
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    font-weight: 700;
    color: #1a1a1a;
    line-height: 2;
}

/* ==========================================
   フォーム選択
   ========================================== */

.form-selector {
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.form-selector-title {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: var(--spacing-lg);
}

.form-selector-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-selector-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: #f8f9fa;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: clamp(0.95rem, 1.8vw, 1.1rem);
    font-weight: 600;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-selector-btn:hover {
    background-color: #fff;
    border-color: var(--gold-accent);
    color: #1a1a1a;
    transform: translateY(-2px);
}

.form-selector-btn.active {
    background-color: var(--gold-accent);
    border-color: var(--gold-accent);
    color: #ffffff;
    font-weight: 700;
}

/* ==========================================
   フォームコンテナ
   ========================================== */

.contact-form-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    background-color: #f8f9fa;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.form-title {
    font-family: var(--font-en);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.form-lead {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: clamp(0.95rem, 1.8vw, 1.05rem);
    line-height: 1.8;
    color: #666;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

/* ==========================================
   フォーム要素
   ========================================== */

.contact-form {
    width: 100%;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: var(--spacing-xs);
}

.required {
    display: inline-block;
    margin-left: 8px;
    padding: 2px 8px;
    background-color: #e74c3c;
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 4px;
}

.optional {
    display: inline-block;
    margin-left: 8px;
    padding: 2px 8px;
    background-color: #95a5a6;
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 4px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 1rem;
    color: #1a1a1a;
    background-color: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--gold-accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ラジオボタン */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.radio-label {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background-color: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.radio-label:hover {
    border-color: var(--gold-accent);
    background-color: rgba(212, 175, 55, 0.05);
}

.radio-label input[type="radio"] {
    margin-right: 12px;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.radio-label input[type="radio"]:checked + span {
    color: var(--gold-accent);
    font-weight: 700;
}

.radio-label span {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.95rem;
    color: #666;
    transition: all 0.3s ease;
}

/* ファイルアップロード */
.form-group input[type="file"] {
    width: 100%;
    padding: 12px 16px;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.95rem;
    color: #666;
    background-color: #ffffff;
    border: 2px dashed #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-group input[type="file"]:hover {
    border-color: var(--gold-accent);
    background-color: rgba(212, 175, 55, 0.05);
}

.file-note {
    margin-top: var(--spacing-xs);
    font-size: 0.85rem;
    color: #999;
}

/* ==========================================
   送信ボタン
   ========================================== */

.submit-btn {
    width: 100%;
    padding: 18px 32px;
    font-family: var(--font-en);
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
    background-color: var(--gold-accent);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: var(--spacing-lg);
}

.submit-btn:hover {
    background-color: #c49550;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(212, 175, 55, 0.3);
}

.submit-btn:active {
    transform: translateY(0);
}

/* ==========================================
   レスポンシブ
   ========================================== */

@media (max-width: 768px) {
    .contact-section {
        padding: 100px 0 60px;
    }

    .contact-form-container {
        padding: var(--spacing-lg);
    }

    .form-selector-btn {
        font-size: 0.9rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .radio-group {
        gap: 8px;
    }

    .radio-label {
        padding: 10px 12px;
    }

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

@media (max-width: 480px) {
    .form-title {
        font-size: 1.3rem;
    }

    .form-lead {
        font-size: 0.9rem;
    }

    .submit-btn {
        font-size: 1rem;
        padding: 16px 24px;
    }
}