/**
 * iOS Capacitor 専用: スタンドアロン画面から Social9 チャットへ戻る
 * html.s9-ios-app は早期スクリプト / s9-ios-standalone-back.js が付与。
 */

.s9-ios-sa-back-bar {
    display: none;
}

html.s9-ios-app .s9-ios-sa-back-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    position: sticky;
    top: 0;
    z-index: 400;
    min-height: 48px;
    padding: 8px 14px;
    padding-top: calc(8px + env(safe-area-inset-top, 0px));
    background: #fff;
    border-bottom: 1px solid rgba(100, 106, 115, 0.22);
    box-sizing: border-box;
}

html.s9-ios-app .s9-ios-sa-back-btn {
    appearance: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    border: 1px solid rgba(100, 106, 115, 0.28);
    background: #f8fafc;
    color: #1e293b;
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    min-height: 40px;
    padding: 8px 14px 8px 10px;
    border-radius: 10px;
    text-decoration: none;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

html.s9-ios-app .s9-ios-sa-back-btn:active {
    background: #eef2f7;
}

html.s9-ios-app .s9-ios-sa-back-chevron {
    font-size: 15px;
    font-weight: 600;
}

html.s9-ios-app .s9-ios-sa-back-label {
    font-size: 13px;
    color: #64748b;
    font-weight: 500;
}