body {
    background-color: #f5f6fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.card {
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.list-group-item {
    border-left: 3px solid transparent;
}

.list-group-item.active {
    border-left-color: #0d6efd;
    background-color: #e7f1ff;
    color: #0d6efd;
}

.message-item, .comment-item {
    padding: 15px;
    border-bottom: 1px solid #eee;
    transition: background-color 0.2s;
}

.message-item:hover, .comment-item:hover {
    background-color: #f8f9fa;
}

.message-item.unread {
    background-color: #fff3cd;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin-right: 10px;
}

.time-ago {
    color: #6c757d;
    font-size: 0.85rem;
}

.page-badge {
    display: inline-block;
    padding: 3px 8px;
    background-color: #e9ecef;
    border-radius: 12px;
    font-size: 0.8rem;
    margin-left: 5px;
}

.delete-page-btn {
    opacity: 0;
    transition: opacity 0.2s;
    padding: 4px 8px;
}

.list-group-item:hover .delete-page-btn {
    opacity: 1;
}

.delete-page-btn:hover {
    background-color: #dc3545 !important;
    border-color: #dc3545 !important;
}

#pagesList .list-group-item {
    cursor: default;
}

.conversation-item {
    padding: 15px;
    border-bottom: 1px solid #eee;
    cursor: pointer;
    transition: background-color 0.2s;
}

.conversation-item:hover {
    background-color: #f8f9fa;
}

.conversation-item.unread {
    background-color: #fff3cd;
    border-left: 3px solid #ffc107;
}

.post-item {
    padding: 15px;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    margin-bottom: 15px;
    background-color: #fff;
}

.post-header {
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
    margin-bottom: 10px;
}

.comments-list {
    margin-top: 10px;
}

.comment-detail {
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 6px;
    margin-bottom: 8px;
}

.comment-detail.unreplied {
    background-color: #fff3cd;
    border-left: 3px solid #ffc107;
}

.message-bubble {
    padding: 10px;
    background-color: #e9ecef;
    border-radius: 8px;
    margin-bottom: 10px;
}

.message-bubble.unread {
    background-color: #fff3cd;
}

.reply-btn {
    font-size: 0.85rem;
    padding: 3px 10px;
}

.post-detail-content {
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.post-message {
    font-size: 1.1rem;
    line-height: 1.6;
    white-space: pre-wrap;
}

.post-stats {
    padding: 10px;
    background-color: #fff;
    border-radius: 6px;
    border: 1px solid #dee2e6;
}

.comments-preview {
    padding: 10px;
    font-style: italic;
    color: #6c757d;
}

.post-item:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    transform: translateY(-2px);
    transition: all 0.2s;
}

.message-bubble {
    border-left: 3px solid #0d6efd;
}

.message-bubble.unread {
    border-left-color: #ffc107;
    font-weight: 500;
}

/* Chat message styles - trái phải */
.chat-message {
    display: flex;
    margin-bottom: 15px;
    clear: both;
    align-items: flex-end;
}

.chat-message.customer {
    justify-content: flex-start;
}

.chat-message.page {
    justify-content: flex-end;
    flex-direction: row-reverse;
}

.chat-message .chat-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.chat-message.customer .chat-avatar {
    margin-right: 10px;
}

.chat-message.page .chat-avatar {
    margin-left: 10px;
}

.chat-message .message-content {
    max-width: 65%;
    padding: 10px 15px;
    border-radius: 15px;
    position: relative;
}

.chat-message.customer .message-content {
    background-color: #e9ecef;
    border-bottom-left-radius: 5px;
}

.chat-message.page .message-content {
    background-color: #0d6efd;
    color: white;
    border-bottom-right-radius: 5px;
}

.chat-message .message-header {
    margin-bottom: 5px;
    font-size: 0.9rem;
    font-weight: 600;
}

.chat-message.page .message-header strong {
    color: rgba(255, 255, 255, 0.95);
}

.chat-message .message-text {
    word-wrap: break-word;
    white-space: pre-wrap;
    line-height: 1.4;
}

.chat-message .message-time {
    font-size: 0.75rem;
    margin-top: 5px;
    opacity: 0.7;
}

.chat-message.page .message-time {
    color: rgba(255, 255, 255, 0.8);
}

#conversationMessages {
    padding: 10px;
}

#postComments .comment-detail {
    margin-bottom: 12px;
}

.spinner-border {
    width: 2rem;
    height: 2rem;
    margin: 20px auto;
}

/* Page Cards */
.page-card {
    border: 1px solid #dee2e6;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    transition: all 0.3s;
    background: white;
}

.page-card:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.page-card-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.page-card-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
    transition: opacity 0.2s;
}

.page-card-header a:hover .page-card-avatar {
    opacity: 0.8;
}

.page-card-info h5 a:hover {
    color: #0d6efd !important;
}

.page-card-info h5 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.page-card-stats {
    display: flex;
    gap: 15px;
    margin-top: 15px;
    justify-content: space-between;
}

.stat-item {
    flex: 1;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.stat-item .stat-label {
    font-size: 14px;
    color: #6c757d;
    white-space: nowrap;
}

.stat-item .stat-value {
    font-size: 20px;
    font-weight: 600;
    color: #212529;
    white-space: nowrap;
}

.stat-item.unread {
    background: #fff3cd;
}

.stat-item.unreplied {
    background: #f8d7da;
}

.page-card-actions {
    margin-top: 15px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 8px;
}

.page-card-actions .btn {
    font-size: 13px;
    padding: 8px 12px;
    white-space: nowrap;
}

/* Mobile: 4 nút thành 2 hàng (2x2) */
@media (max-width: 768px) {
    .page-card-actions {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }
    
    .page-card-actions .btn {
        font-size: 12px;
        padding: 8px 6px;
    }
    
    /* Ẩn text, chỉ hiện icon trên mobile nhỏ */
    @media (max-width: 480px) {
        .page-card-actions .btn {
            font-size: 0;
            padding: 10px;
        }
        
        .page-card-actions .btn i {
            font-size: 16px;
        }
    }
}

/* Extra small button */
.btn-xs {
    padding: 2px 6px;
    font-size: 0.75rem;
    line-height: 1.2;
}

/* Reply item styles */
.reply-item {
    border-left: 3px solid #0d6efd;
}


/* ========== Navbar Mobile Responsive ========== */
.navbar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-brand .page-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255,255,255,0.3);
}

/* Top navbar page avatar */
.top-navbar .navbar-brand .page-avatar {
    border: 2px solid #e4e6eb;
}

/* Mobile Responsive - Ẩn text, chỉ hiện icon */
@media (max-width: 768px) {
    /* Ẩn tên page */
    .navbar-brand #pageName {
        display: none !important;
    }
    
    .navbar-brand .page-avatar {
        width: 36px;
        height: 36px;
    }
    
    /* Navbar dark (dashboard, manage_pages, etc.) */
    .navbar.navbar-dark .navbar-brand {
        font-size: 0;
    }
    
    .navbar.navbar-dark .navbar-brand i {
        font-size: 24px;
    }
    
    /* Ẩn text trong các nút, chỉ hiện icon */
    .navbar .btn {
        padding: 8px 12px;
        font-size: 16px;
    }
    
    /* Ẩn text sau icon trong button */
    .navbar .btn {
        font-size: 0;
    }
    
    .navbar .btn i {
        font-size: 18px;
    }
    
    .navbar .btn .badge {
        display: none;
    }
    
    /* Ẩn dropdown arrow trên mobile */
    .navbar .dropdown-toggle::after {
        display: none;
    }
    
    /* Giảm gap giữa các nút */
    .navbar .d-flex.gap-2 {
        gap: 4px !important;
    }
    
    /* Ẩn auto sync indicator text */
    #autoSyncIndicator {
        font-size: 0;
        padding: 6px 8px;
    }
    
    #autoSyncIndicator i {
        font-size: 14px;
    }
    
    /* Container fluid padding */
    .navbar .container-fluid {
        padding: 0 8px;
    }
    
    /* Top navbar menu - ẩn text, chỉ hiện icon */
    .top-navbar .navbar-menu .nav-item span {
        display: none;
    }
    
    .top-navbar .navbar-menu .nav-item {
        padding: 8px 12px;
    }
    
    .top-navbar .navbar-menu .nav-item i {
        margin-right: 0;
    }
    
    .top-navbar .navbar-menu {
        gap: 2px;
    }
    
    /* UserInfo dropdown - đồng bộ kích thước với các nút khác */
    #userInfo .btn {
        padding: 8px 12px;
        font-size: 0;
    }
    
    #userInfo .btn i {
        font-size: 18px;
    }
    
    #userInfo .btn .badge {
        display: none;
    }
    
    /* Các nút btn-light, btn-info trong navbar */
    .navbar .btn-light,
    .navbar .btn-info,
    .navbar .btn-warning {
        font-size: 0;
        padding: 8px 12px;
    }
    
    .navbar .btn-light i,
    .navbar .btn-info i,
    .navbar .btn-warning i {
        font-size: 18px;
    }
    
    /* Ẩn text nút Hỗ trợ và User trên mobile */
    #nav-support .btn,
    #nav-support a {
        font-size: 0 !important;
        padding: 8px 12px !important;
    }
    
    #nav-support .btn i,
    #nav-support a i {
        font-size: 18px !important;
    }
}

/* Tablet */
@media (max-width: 992px) and (min-width: 769px) {
    .navbar-brand #pageName {
        max-width: 200px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    /* Thu gọn text trên tablet */
    .navbar .btn {
        padding: 6px 12px;
        font-size: 13px;
    }
}