/* ====================================
   モバイルヘッダー統合CSS
   全ページで統一されたヘッダースタイルを提供
   
   ブレークポイント:
   - モバイル: max-width: 767px
   - タブレット: 768px - 991px
   - デスクトップ: min-width: 992px
==================================== */

/* ====================================
   共通ヘッダースタイル（全デバイス）
==================================== */
:root {
    --header-dark-brown: #3a2317;
    --header-white: #ffffff;
    --header-hover-gold: #d4a574;
    --header-border: rgba(255, 255, 255, 0.1);
}

/* デスクトップ以外でのヘッダー固定と背景色 */
@media (max-width: 991px) {
    /* ヘッダーを最初から固定・ダークブラウン表示 */
    .navbar {
        position: fixed !important;
        top: 0;
        left: 0;
        right: 0;
        background: var(--header-dark-brown) !important;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1) !important;
        z-index: 1000;
        padding: 0.8rem 0 !important;
    }
    
    .navbar.scrolled {
        background: var(--header-dark-brown) !important;
        padding: 0.8rem 0 !important;
    }
    
    .navbar .nav-link {
        color: var(--header-white) !important;
    }
    
    /* bodyの上部余白調整 */
    body {
        padding-top: 80px !important;
    }
}

/* ====================================
   モバイル専用スタイル (max-width: 767px)
==================================== */
@media (max-width: 767px) {
    /* ヘッダー全体の構造 */
    .main-header,
    #header-container .navbar,
    .navbar {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        height: auto !important;
        min-height: 100px !important;
        z-index: 9999 !important;
        background: var(--header-dark-brown) !important;
        
        /* アニメーション無効化 */
        transform: none !important;
        transition: none !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    /* navbarの基本設定 */
    .navbar {
        padding: 0 !important;
        min-height: auto !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
    }
    
    /* header-containerの2段レイアウト */
    .header-container {
        width: 100% !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: stretch !important;
        padding: 0 !important;
        position: relative !important;
        height: auto !important;
        background: var(--header-dark-brown) !important;
    }
    
    /* ロゴを上段中央に配置 */
    .navbar-brand {
        width: 100% !important;
        text-align: center !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        margin: 0 !important;
        padding: 10px 0 8px 0 !important;
        border-bottom: 1px solid var(--header-border) !important;
        position: relative !important;
        order: 1 !important;
        background-color: transparent !important;
        min-height: 45px !important;
    }
    
    .navbar-brand img {
        height: auto !important;
        max-height: 35px !important;
        width: auto !important;
        object-fit: contain !important;
        display: inline-block !important;
    }
    
    /* メニューを下段に配置 */
    .navbar-collapse {
        position: static !important;
        width: 100% !important;
        display: flex !important;
        justify-content: center !important;
        padding: 8px 0 !important;
        background-color: rgba(0, 0, 0, 0.1) !important;
        margin-top: 0 !important;
        flex-basis: auto !important;
        order: 2 !important;
        border-bottom: 1px solid var(--header-border) !important;
    }
    
    /* ナビゲーションメニューの横スクロール対応 */
    .navbar-nav {
        margin: 0 auto !important;
        padding: 0 10px !important;
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: center !important;
        gap: 0.3rem !important;
        width: auto !important;
        max-width: 100% !important;
        flex-wrap: nowrap !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        scrollbar-width: none !important;
        -ms-overflow-style: none !important;
    }
    
    .navbar-nav::-webkit-scrollbar {
        display: none !important;
    }
    
    /* メニュー項目のスタイル */
    .nav-item {
        padding: 0 !important;
        margin: 0 !important;
        flex: 0 0 auto !important;
    }
    
    .nav-link {
        display: inline-block !important;
        padding: 6px 10px !important;
        font-size: 12px !important;
        white-space: nowrap !important;
        text-align: center !important;
        min-width: auto !important;
        margin: 0 2px !important;
        line-height: 1.4 !important;
        border: 1px solid rgba(255, 255, 255, 0.3) !important;
        border-radius: 15px !important;
        background-color: rgba(255, 255, 255, 0.05) !important;
        color: var(--header-white) !important;
        font-weight: 500 !important;
        transition: all 0.2s ease !important;
    }
    
    .nav-link:hover,
    .nav-link:focus {
        background-color: rgba(255, 255, 255, 0.15) !important;
        border-color: rgba(255, 255, 255, 0.5) !important;
        color: var(--header-hover-gold) !important;
        transform: translateY(-1px);
    }
    
    /* 言語選択ボタンの配置 */
    .language-switcher.language-switcher-mobile {
        position: absolute !important;
        right: 10px !important;
        top: 32px !important;  /* 1段目の高さ45pxの中で、境界線に被らない位置に調整 */
        transform: translateY(-50%) !important;
        z-index: 1001 !important;
        display: block !important;
    }
    
    .language-switcher-mobile button {
        background: rgba(255, 255, 255, 0.1) !important;
        border: 1px solid rgba(255, 255, 255, 0.3) !important;
        border-radius: 20px !important;
        padding: 5px 10px !important;
        font-size: 12px !important;
        color: var(--header-white) !important;
        display: flex !important;
        align-items: center !important;
        gap: 5px !important;
    }
    
    .language-switcher-mobile button:hover {
        background-color: rgba(255, 255, 255, 0.2) !important;
    }
    
    .language-switcher.language-switcher-desktop {
        display: none !important;
    }
    
    /* bodyのpadding調整 */
    body {
        padding-top: 100px !important;
    }
}

/* ====================================
   タブレット専用スタイル (768px - 991px)
==================================== */
@media (min-width: 768px) and (max-width: 991px) {
    /* タブレットでのヘッダー調整 */
    .navbar {
        padding: 1rem 0 !important;
    }
    
    .header-container {
        padding: 0 20px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
    }
    
    /* ロゴサイズ調整 */
    .navbar-brand img {
        max-height: 45px !important;
    }
    
    /* メニュー項目のサイズ調整 */
    .nav-link {
        font-size: 14px !important;
        padding: 8px 12px !important;
    }
    
    /* bodyのpadding調整 */
    body {
        padding-top: 85px !important;
    }
}

/* ====================================
   極小画面対応 (max-width: 480px)
==================================== */
@media (max-width: 480px) {
    .navbar-brand img {
        max-height: 30px !important;
    }
    
    .navbar-brand {
        min-height: 42px !important;
    }
    
    .nav-link {
        font-size: 11px !important;
        padding: 5px 8px !important;
    }
    
    body {
        padding-top: 95px !important;
    }
}

/* ====================================
   印刷時のスタイル
==================================== */
@media print {
    .navbar {
        position: static !important;
        background: white !important;
    }
    
    .nav-link {
        color: black !important;
    }
    
    body {
        padding-top: 0 !important;
    }
}