/* ============================
   Mobile Upgrade - Phase 1
   モバイルUI最適化：情報密度向上・PSI改善
   ============================ */

@media (max-width: 768px) {

    /* ===== 基本フォント密度向上 ===== */
    body {
        font-size: 15px !important;
        line-height: 1.5 !important;
    }

    h1 {
        font-size: 1.5rem !important;
        line-height: 1.3 !important;
        margin-bottom: 1rem !important;
    }

    h2 {
        font-size: 1.25rem !important;
        line-height: 1.3 !important;
        margin-bottom: 0.75rem !important;
    }

    h3 {
        font-size: 1.1rem !important;
        line-height: 1.3 !important;
        margin-bottom: 0.5rem !important;
    }

    p {
        margin-bottom: 0.75rem !important;
        line-height: 1.5 !important;
    }

    /* ===== ボトムナビ最適化 ===== */
    .mobile-bottom-nav {
        display: block !important;
        padding-bottom: env(safe-area-inset-bottom) !important;
    }

    /* 電話リンクを完全非表示 */
    .mobile-bottom-nav-item[href^="tel:"] {
        display: none !important;
    }

    /* ボトムナビを2項目に最適化 */
    .mobile-bottom-nav-container {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0 !important;
        width: 100% !important;
    }

    /* タップ領域を56px相当に拡大 */
    .mobile-bottom-nav-item {
        min-height: 56px !important;
        padding: 8px 4px !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        text-decoration: none !important;
        color: var(--text-light) !important;
        transition: all 0.2s ease !important;
    }

    .mobile-bottom-nav-item:hover,
    .mobile-bottom-nav-item:active {
        color: var(--primary-color) !important;
        background: var(--bg-light) !important;
    }

    /* アクティブ状態 */
    .mobile-bottom-nav-item.active {
        color: var(--primary-color) !important;
        font-weight: 700 !important;
    }

    .mobile-bottom-nav-item.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 2px;
        background: var(--primary-color) !important;
        border-radius: 1px;
    }

    /* アイコンを大きく */
    .mobile-bottom-nav-icon {
        font-size: 1.5rem !important;
        line-height: 1 !important;
        margin-bottom: 2px !important;
    }

    /* テキストを大きく */
    .mobile-bottom-nav-item>span:not(.mobile-bottom-nav-icon) {
        font-size: 0.75rem !important;
        font-weight: 600 !important;
        line-height: 1 !important;
    }

    /* ===== サービスカード圧縮（全ページ適用） ===== */
    .service-card,
    .card {
        padding: 12px 16px !important;
        margin-bottom: 12px !important;
    }

    .services-grid,
    .price-grid {
        gap: 12px !important;
    }

    /* カード内の見出し余白削減 */
    .service-card h3,
    .card h3 {
        font-size: 1rem !important;
        margin-bottom: 8px !important;
        line-height: 1.3 !important;
    }

    /* 説明文：3行クランプ */
    .service-card p,
    .card p:not(.price-note):not(:last-child) {
        display: -webkit-box !important;
        -webkit-box-orient: vertical !important;
        -webkit-line-clamp: 3 !important;
        overflow: hidden !important;
        font-size: 0.85rem !important;
        line-height: 1.4 !important;
        margin-bottom: 8px !important;
    }

    /* ボタンサイズ調整 */
    .service-card-footer .btn,
    .card .btn {
        font-size: 0.8rem !important;
        padding: 8px 16px !important;
        min-height: 40px !important;
    }

    /* アイコン調整 */
    .service-icon {
        font-size: 1rem !important;
        margin-right: 0.5rem !important;
    }

    /* ===== 料金カード最適化 ===== */
    .price-card {
        padding: 16px !important;
        margin-bottom: 12px !important;
    }

    .price-card h3 {
        font-size: 1.1rem !important;
        margin-bottom: 8px !important;
    }

    .price {
        font-size: 1.5rem !important;
        margin-bottom: 8px !important;
    }

    .price-note {
        font-size: 0.8rem !important;
        margin-bottom: 12px !important;
        line-height: 1.4 !important;
    }

    .price-card ul {
        margin-bottom: 12px !important;
    }

    .price-card ul li {
        font-size: 0.85rem !important;
        margin-bottom: 4px !important;
        line-height: 1.4 !important;
    }

    /* ===== セクション余白削減 ===== */
    section {
        padding: 2rem 0 !important;
    }

    .section-title {
        margin-bottom: 1.5rem !important;
    }

    .section-title h2 {
        margin-bottom: 0.5rem !important;
    }

    .section-title p {
        font-size: 0.9rem !important;
        margin-bottom: 0 !important;
    }

    /* ===== FAQ最適化 ===== */
    .faq-item {
        margin-bottom: 1rem !important;
        padding-bottom: 1rem !important;
    }

    .faq-q {
        font-size: 0.95rem !important;
        padding: 12px !important;
        line-height: 1.4 !important;
    }

    .faq-a {
        font-size: 0.85rem !important;
        line-height: 1.4 !important;
        padding: 0 12px 12px !important;
    }

    /* ===== フォーム最適化 ===== */
    .form-group {
        margin-bottom: 1rem !important;
    }

    .form-group label {
        font-size: 0.9rem !important;
        margin-bottom: 4px !important;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        font-size: 1rem !important;
        padding: 12px !important;
    }

    /* ===== その他余白削減 ===== */
    .container {
        padding: 0 1rem !important;
    }

    .page-hero {
        padding: 3rem 0 2rem !important;
    }

    .page-hero h1 {
        font-size: 1.75rem !important;
        margin-bottom: 1rem !important;
        text-align: center !important;
    }

    .page-hero p {
        font-size: 0.95rem !important;
        margin-bottom: 0.75rem !important;
    }
}