/* 基本設定 - モバイルファースト */
:root {
    --color-primary: #003366;
    --color-secondary: #4a90e2;
    --color-background: #f4f8ff;
    --color-text: #333;
    --color-white: #fff;
    --color-border: #e0e0e0;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--color-text);
    margin: 0;
    background: var(--color-white);
    overflow-x: hidden; /* 横スクロール防止 */
}

.container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 12px;
    box-sizing: border-box;
}

a {
    text-decoration: none;
    color: inherit;
}

h1, h2, h3 {
    font-weight: bold;
    margin: 0 0 20px 0;
    overflow-wrap: break-word;
    word-break: break-all;
}

.section {
    padding: 40px 0;
}

/* ヒーローセクション - モバイルファースト */
.image-banner {
    background: url('images/contact.html') no-repeat center 25%/cover;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.image-banner::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.05);
    z-index: 1;
}

.banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-primary);
    padding: 30px 20px;
    background: linear-gradient(90deg, rgba(255,255,255,0.45) 0%, rgba(255,255,255,0.25) 100%) !important;
    border-radius: 16px;
    max-width: 100%;
    margin: 20px auto 0 auto;
    box-shadow: 0 8px 25px rgba(0,0,0,0.10);
    overflow-wrap: break-word;
    word-break: break-all;
}

.banner-title {
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 18px;
    letter-spacing: 0.05em;
    overflow-wrap: break-word;
    word-break: break-all;
}

.banner-desc {
    font-size: 1rem;
    margin-bottom: 30px;
    line-height: 1.7;
    overflow-wrap: break-word;
    word-break: break-all;
}

.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 30px;
    font-weight: bold;
    font-size: 1rem;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    transition: background 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 16px rgba(0,0,0,0.10);
    cursor: pointer;
    min-height: 44px;
    width: 100%;
    max-width: 280px;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn:hover {
    background: var(--color-secondary);
}

/* お問い合わせフォーム - モバイルファースト */
.contact-form {
    background: var(--color-white);
    padding: 40px 0;
}

.form-container {
    max-width: 100%;
    margin: 0 auto;
    padding: 20px;
    background: var(--color-background);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.form-group {
    margin-bottom: 20px;
    overflow-wrap: break-word;
    word-break: break-all;
}

.form-group label {
    display: block;
    font-weight: bold;
    color: var(--color-primary);
    margin-bottom: 8px;
    font-size: 1rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.3s ease;
    min-height: 44px;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-secondary);
}

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

.form-group .required {
    color: #e74c3c;
    margin-left: 4px;
}

.submit-btn {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 15px 40px;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
    width: 100%;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.submit-btn:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
}

/* お問い合わせ情報 - モバイルファースト */
.contact-info {
    background: var(--color-background);
    padding: 40px 0;
}

.info-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-item {
    background: var(--color-white);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow-wrap: break-word;
    word-break: break-all;
}

.info-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.info-item i {
    font-size: 2rem;
    color: var(--color-secondary);
    margin-bottom: 15px;
}

.info-item h3 {
    color: var(--color-primary);
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.info-item p {
    color: #666;
    line-height: 1.6;
    margin: 0;
    overflow-wrap: break-word;
    word-break: break-all;
}

/* アクセシビリティ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* エラーメッセージ */
.error-message {
    color: #e74c3c;
    font-size: 0.9rem;
    margin-top: 5px;
    overflow-wrap: break-word;
    word-break: break-all;
}

/* 成功メッセージ */
.success-message {
    color: #27ae60;
    font-size: 0.9rem;
    margin-top: 5px;
    overflow-wrap: break-word;
    word-break: break-all;
}

/* PC用スタイル - 768px以上 */
@media (min-width: 769px) {
    .container {
        max-width: 1100px;
        padding: 0 20px;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .image-banner {
        min-height: 90vh;
    }
    
    .banner-content {
        padding: 64px 48px;
        max-width: 1100px;
        margin: 120px auto 0 auto;
    }
    
    .banner-title {
        font-size: 2.2rem;
    }
    
    .banner-desc {
        font-size: 1.1rem;
    }
    
    .btn {
        width: auto;
        min-width: 120px;
    }
    
    .form-container {
        max-width: 600px;
        padding: 40px;
    }
    
    .info-grid {
        flex-direction: row;
        gap: 30px;
    }
    
    .info-item {
        flex: 1;
        padding: 30px;
    }
}

/* 小さい画面用の調整 - 480px以下 */
@media (max-width: 480px) {
    .banner-title {
        font-size: 1.5rem;
    }
    
    .banner-desc {
        font-size: 0.9rem;
    }
    
    .form-container {
        padding: 15px;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        font-size: 0.9rem;
    }
} 

/* スマホ対応 - 768px以下 */
@media screen and (max-width: 768px) {
    /* 基本設定 */
    body {
        font-size: 16px;
        line-height: 1.5;
    }
    
    .container {
        padding: 0 16px;
    }
    
    h1, h2, h3 {
        margin-bottom: 15px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    /* ヒーローセクション */
    .image-banner {
        min-height: 50vh;
    }
    
    .banner-content {
        padding: 25px 20px;
        margin: 15px 16px 0 16px;
    }
    
    .banner-title {
        font-size: 1.5rem;
        margin-bottom: 15px;
    }
    
    .banner-desc {
        font-size: 16px;
        margin-bottom: 25px;
        line-height: 1.6;
    }
    
    .btn {
        padding: 14px 30px;
        font-size: 16px;
        min-height: 48px;
        width: 100%;
        max-width: 300px;
    }
    
    /* お問い合わせフォーム */
    .contact-form {
        padding: 60px 0;
    }
    
    .form-container {
        padding: 25px 20px;
        margin: 0 16px;
    }
    
    .form-group {
        margin-bottom: 20px;
    }
    
    .form-group label {
        font-size: 16px;
        margin-bottom: 8px;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 12px;
        font-size: 16px;
        min-height: 48px;
    }
    
    .form-group textarea {
        min-height: 120px;
    }
    
    .submit-btn {
        padding: 14px 30px;
        font-size: 16px;
        min-height: 48px;
        width: 100%;
    }
    
    /* お問い合わせ情報 */
    .info-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 16px;
    }
    
    .info-item {
        padding: 25px 20px;
        text-align: center;
    }
    
    .info-item i {
        font-size: 2rem;
        margin-bottom: 15px;
    }
    
    .info-item h3 {
        font-size: 1.2rem;
        margin-bottom: 10px;
    }
    
    .info-item p {
        font-size: 16px;
        line-height: 1.6;
    }
    
    /* エラーメッセージ */
    .error-message,
    .success-message {
        font-size: 16px;
        padding: 15px;
        margin-bottom: 20px;
    }
} 

/* お問い合わせフォーム最適化 */
.contact-container {
    max-width: 600px;
    margin: 60px auto 40px auto;
    padding: 40px 20px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    text-align: center;
}

.contact-container h1 {
    font-size: 2rem;
    margin-bottom: 32px;
    color: var(--color-primary);
}

.contact-container form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: stretch;
}

.form-group input,
.form-group textarea {
    background: #f8f9fa;
    border: 1.5px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    padding: 14px;
    width: 100%;
    box-sizing: border-box;
}

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

.contact-container button {
    background: var(--color-primary);
    color: #fff;
    border: none;
    padding: 15px 0;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    margin-top: 10px;
}

.contact-container button:hover {
    background: var(--color-secondary);
}

@media (max-width: 600px) {
    .contact-container {
        max-width: 98vw;
        padding: 20px 6px;
    }
    .contact-container h1 {
        font-size: 1.3rem;
    }
}