:root {
            --primary-color: #000000;
            --secondary-color: #333333;
            --accent-color: #000000;
            --light-bg: #f8f9fa;
            --border-color: #dee2e6;
            --sidebar-width: 340px;
            --viewer-surface: #ebebeb;
        }

        html {
            margin: 0;
            padding: 0;
            min-height: 100%;
            background-color: var(--light-bg);
            max-width: 100%;
            width: 100%;
        }

        html:not(.itqan-editor-active) {
            overflow-x: visible;
        }

        body,
        body.bg-light-subtle {
            margin: 0;
            padding: 0;
            min-height: 100vh;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--light-bg) !important;
        }

        html:not(.itqan-editor-active) body.bg-light-subtle {
            overflow-x: visible;
            overflow-y: auto;
        }

        html.itqan-editor-active {
            height: 100%;
            overflow: hidden;
        }

        html.itqan-editor-active body.bg-light-subtle {
            overflow: hidden !important;
            height: 100%;
            max-height: 100dvh;
        }

        html.itqan-editor-active nav.navbar.navbar-expand-xl.navbar-dark.bg-dark {
            position: sticky;
            top: 0;
            z-index: 1040;
        }

        html.itqan-editor-active .navbar .dropdown-menu {
            z-index: 1060 !important;
        }

        @media (min-width: 1200px) {
            html.itqan-editor-active .navbar.navbar-expand-xl #navbarNav.collapse.navbar-collapse {
                max-height: none !important;
                overflow: visible !important;
            }
        }

        .upload-area {
            position: relative;
            cursor: pointer;
            isolation: isolate;
            transition: background-color 0.3s ease, border-color 0.3s ease;
            border: 2px dashed #ced4da;
            border-radius: 12px;
            background: var(--light-bg, #f8f9fa);
            min-height: auto;
        }

        .upload-area:hover,
        .upload-area.dragover {
            background-color: #eef0f2;
            border-color: #6b7280 !important;
        }

        #dropArea,
        .upload-area.card {
            overflow: visible;
            max-width: 100%;
            background-color: #f8f9fa !important;
            background: #f8f9fa !important;
            box-shadow: none !important;
            border: 2px dashed #ced4da !important;
        }

        .container.my-5 > .row.justify-content-center > .col-lg-8 {
            min-width: 0;
        }

        #textFileUpload {
            position: absolute;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            opacity: 0;
            cursor: pointer;
            z-index: 10;
        }

        .cloud-upload-btn {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid #dee2e6;
            background: white;
            transition: all 0.3s;
            cursor: pointer;
            padding: 0;
            position: relative;
            z-index: 100;
        }

        .cloud-upload-btn:hover {
            border-color: #000;
            transform: scale(1.1);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }

        .cloud-icon {
            position: relative;
            display: inline-block;
            transition: transform 0.3s ease;
            z-index: 101;
        }

        .cloud-tooltip {
            visibility: hidden;
            width: 140px;
            background-color: #333;
            color: #fff;
            text-align: center;
            border-radius: 6px;
            padding: 8px 5px;
            position: absolute;
            z-index: 1000;
            bottom: 125%;
            left: 50%;
            margin-left: -70px;
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 12px;
            white-space: nowrap;
            pointer-events: none;
        }

        .cloud-tooltip::after {
            content: "";
            position: absolute;
            top: 100%;
            left: 50%;
            margin-left: -5px;
            border-width: 5px;
            border-style: solid;
            border-color: #333 transparent transparent transparent;
        }

        .cloud-icon:hover .cloud-tooltip {
            visibility: visible;
            opacity: 1;
        }

        #adContainer {
            margin: 20px 0;
            text-align: center;
            overflow: hidden;
            max-width: 100%;
            box-sizing: border-box;
        }

        #adContainer ins.adsbygoogle {
            display: block !important;
            width: min(100%, 728px) !important;
            max-width: 100% !important;
            margin-left: auto !important;
            margin-right: auto !important;
        }

        .main-editor {
            display: none;
            height: calc(100vh - 60px);
            flex-direction: row;
            min-width: 0;
            min-height: 0;
        }

        html.itqan-editor-active #editor-section.main-editor {
            display: flex !important;
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            top: var(--itqan-editor-top, 72px);
            height: auto !important;
            min-height: 0 !important;
            box-sizing: border-box;
            z-index: 1;
        }

        #editor-section .sidebar {
            width: var(--sidebar-width);
            min-width: var(--sidebar-width);
            flex: 0 0 var(--sidebar-width);
            background: #fff;
            border-left: 1px solid #ddd;
            display: flex;
            flex-direction: column;
            position: relative;
            z-index: 1;
            overflow: hidden;
            min-height: 0;
            height: 100%;
        }

        #editor-section .sidebar .merge-sidebar-body {
            flex: 1 1 auto;
            min-height: 0;
            overflow-x: hidden;
            overflow-y: auto;
            padding-top: 0;
        }

        .merge-sidebar-header {
            flex-shrink: 0;
            padding: 16px 18px;
            border-bottom: 1px solid #eee;
            font-weight: 700;
            font-size: 17px;
            background: #fff;
            text-align: center;
            color: #222;
        }

        .merge-sidebar-body {
            padding: 16px 18px 12px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        #editor-section .sidebar > .merge-sidebar-footer {
            flex-shrink: 0;
            margin-top: auto;
            padding: 14px 18px 18px;
            border-top: 1px solid #eee;
            background: #fff;
        }

        .merge-sidebar-help-btn {
            width: 100%;
            margin: 0 0 0.85rem;
            padding: 0.55rem 0.75rem;
            font-size: 0.82rem;
            font-weight: 600;
            border: 1px dashed var(--border-color);
            border-radius: 8px;
            background: #fff;
            color: #333;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.45rem;
        }

        .merge-sidebar-help-btn:hover {
            background: #f8f9fa;
            border-color: #adb5bd;
            color: #111;
        }

        .merge-stats-sidebar.stats-card {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin: 0;
            width: 100%;
            background: transparent;
            border: none;
            padding: 0;
        }

        .merge-stats-sidebar .merge-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid #f0f0f0;
        }

        .merge-stats-sidebar .merge-stat-item:last-child {
            border-bottom: 0;
        }

        .merge-stats-sidebar .merge-stat-icon {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: #111;
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
        }

        .merge-stats-sidebar .merge-stat-text strong {
            display: block;
            font-size: 0.95rem;
            line-height: 1.15;
        }

        .merge-stats-sidebar .merge-stat-text small {
            font-size: 0.72rem;
            color: #888;
        }

        .sidebar-select-wrap {
            width: 100%;
        }

        .sidebar-select-wrap .form-label {
            font-size: 0.8rem;
            font-weight: 700;
            color: #666;
            margin-bottom: 6px;
        }

        .sidebar-select-wrap .form-select,
        .sidebar-select-wrap .form-range {
            font-size: 0.9rem;
            border-radius: 10px;
        }

        .slider-value {
            margin-top: 6px;
            font-size: 0.8rem;
            color: #555;
            font-weight: 700;
        }

        .arabic-warning {
            background-color: #000;
            color: #fff;
            padding: 10px 12px;
            border-radius: 8px;
            font-size: 13px;
            display: none;
            align-items: center;
            gap: 8px;
            border: 1px solid #333;
            width: 100%;
        }

        .merge-sidebar-btn-clear {
            width: 100%;
            padding: 10px 14px;
            border-radius: 10px;
            border: 1px solid #ddd;
            background: #f5f5f5;
            color: #444;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
        }

        .merge-sidebar-btn-clear:hover {
            background: #eee;
            border-color: #bbb;
            color: #222;
        }

        .btn-finish {
            background: #000;
            color: #fff;
            width: 100%;
            border: none;
            padding: 15px;
            font-size: 18px;
            font-weight: 700;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }

        .btn-finish:hover:not(:disabled) {
            background: #222;
            color: #fff;
        }

        .btn-finish:disabled {
            opacity: 0.55;
            cursor: not-allowed;
        }

        .viewer-container {
            flex: 1 1 auto;
            min-width: 0;
            min-height: 0;
            background: var(--viewer-surface);
            overflow: hidden;
            padding: 0 12px 12px;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        #textPreviewWrap {
            flex: 1 1 auto;
            min-height: 0;
            overflow-y: auto;
            padding-top: 10px;
        }

        .text-preview-card {
            border: none;
            border-radius: 12px;
            background: #fff;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
            padding: 18px;
            margin-bottom: 16px;
        }

        #textInput {
            width: 100%;
            min-height: 360px;
            resize: vertical;
            border-radius: 10px;
            border: 1px solid #ced4da;
            padding: 14px;
            font-size: 15px;
            line-height: 1.6;
        }

        .tts-progress {
            display: none;
            margin-top: 16px;
        }

        .tts-progress .progress {
            height: 20px;
            border-radius: 999px;
            overflow: hidden;
            background: #e9ecef;
        }

        .tts-progress .progress-bar {
            background: linear-gradient(90deg, #000 0%, #333 100%);
            font-size: 12px;
            font-weight: 700;
        }

        .viewer-container #adContainerViewer {
            margin-top: 16px;
            flex-shrink: 0;
            text-align: center;
        }

        .viewer-container #adContainerViewer ins.adsbygoogle {
            display: inline-block !important;
            width: min(100%, 728px) !important;
            max-width: 100% !important;
        }

        .upload-pick-wrap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            transform: translateX(18px);
            position: relative;
            z-index: 20;
        }

        .upload-cloud-stack {
            display: flex;
            flex-direction: column;
            gap: 1px;
            position: relative;
            z-index: 220;
            pointer-events: auto;
        }

        .upload-cloud-stack .cloud-icon,
        .upload-cloud-stack .cloud-upload-btn {
            pointer-events: auto;
        }

        .container.my-5 {
            margin-top: 1rem !important;
            margin-bottom: 2rem !important;
        }

        #mergePageHeader {
            margin-bottom: 0 !important;
        }

        #mergePageHeader .display-5 {
            font-size: clamp(1.75rem, 3.5vw, 2.15rem);
            margin-bottom: 0.55rem !important;
            line-height: 1.25;
        }

        #mergePageHeader .lead {
            margin-bottom: 1.15rem !important;
            font-size: 0.98rem;
            line-height: 1.45;
        }

        #upload-section #dropArea.upload-area,
        #upload-section #dropArea.card.upload-area {
            width: min(100%, var(--itqan-tool-panel-w, 46.5rem));
            max-width: min(100%, var(--itqan-tool-panel-w, 46.5rem));
            margin-left: auto;
            margin-right: auto;
            padding: 0.65rem 1.55rem 0.45rem !important;
            box-shadow: none !important;
            overflow: visible !important;
            background-color: #f8f9fa !important;
            background: #f8f9fa !important;
            border: 2px dashed #ced4da !important;
        }

        @media (min-width: 576px) {
            #upload-section #dropArea.upload-area,
            #upload-section #dropArea .card-body,
            #upload-section #dropArea .upload-row-wrap,
            #upload-section #dropArea .d-flex.justify-content-center {
                overflow: visible !important;
            }
        }

        @media (min-width: 992px) {
            #upload-section #dropArea.upload-area {
                padding-block: 0.75rem 0.5rem !important;
                padding-inline: 1.55rem !important;
                overflow: visible !important;
            }
        }

        @media (max-width: 575.98px) {
            #upload-section #dropArea.upload-area {
                width: 100%;
                padding: 1rem !important;
                overflow: visible !important;
            }
            #upload-section #dropArea .card-body,
            #upload-section #dropArea .upload-row-wrap {
                overflow: visible !important;
            }
        }

        #upload-section #dropArea .card-body {
            padding: 0.3rem 0.85rem 0.2rem;
            overflow: visible !important;
            width: 100%;
            background: transparent !important;
        }

        #upload-section #dropArea .upload-row-wrap {
            overflow: visible !important;
            width: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        @media (max-width: 991.98px) {
            html.itqan-editor-active {
                overflow: auto !important;
                height: auto !important;
            }
            html.itqan-editor-active body.bg-light-subtle {
                overflow: auto !important;
                height: auto !important;
                max-height: none !important;
            }
            .main-editor {
                flex-direction: column !important;
                height: auto !important;
            }
            html.itqan-editor-active #editor-section.main-editor {
                position: relative !important;
                flex-direction: column !important;
                height: auto !important;
                top: auto !important;
                left: auto !important;
                right: auto !important;
                bottom: auto !important;
            }
            #editor-section .sidebar {
                order: 1 !important;
                position: relative !important;
                width: 100% !important;
                min-width: 0 !important;
                max-width: 100% !important;
                max-height: none !important;
                height: auto !important;
                flex: none !important;
                border-left: none;
                border-top: 1px solid #ddd;
            }
            #editor-section .sidebar .merge-sidebar-body {
                overflow: visible !important;
                max-height: none !important;
                height: auto !important;
            }
            #editor-section .viewer-container {
                order: 2 !important;
                width: 100% !important;
                min-width: 0 !important;
                min-height: 50vh;
                flex: none !important;
                overflow: visible !important;
                padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px));
            }
            #textPreviewWrap {
                width: 100%;
                min-width: 0;
            }
            .text-preview-card {
                width: 100%;
                box-sizing: border-box;
            }
            #textInput {
                width: 100%;
                min-height: 280px;
                box-sizing: border-box;
            }
            #editor-section .sidebar > .merge-sidebar-footer,
            .main-editor .p-3 {
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                z-index: 1050;
                padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px)) !important;
                background: #fff;
                border-top: 1px solid #e8e8e8;
                box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
            }
            .btn-finish {
                padding: 14px !important;
                font-size: 16px !important;
                border-radius: 10px !important;
            }
            .upload-pick-wrap {
                transform: none;
            }
            html.itqan-editor-active .tool-seo-visible-wrap,
            html.itqan-editor-active .merge-seo-content {
                display: none !important;
            }
        }