/* Universal HTML Element Controls */
        .nqt-cover-icon,
        .nqt-title-marquee,
        .nqt-divider {
            display: none;
        }

        .nqt-player-body {
            flex: 1;
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .nqt-progress-wrapper {
            flex: 1;
            display: flex;
            align-items: center;
            width: 100%;
            gap: 12px;
        }

        /* 1. Phong cách "Viên thuốc" */
        .nqt-style-1 {
            background: #ffffff;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
            border: 1px solid #f1f5f9;
            gap: 12px;
        }

        .nqt-style-1 .nqt-playback-button {
            background: #0073a8;
            border-radius: 50%;
            width: 42px;
            height: 42px;
        }

        .nqt-style-1 .nqt-progress-bar {
            height: 6px;
            border-radius: 3px;
            background: #e2e8f0;
            flex: 1;
        }

        .nqt-style-1 .nqt-progress-bar-filled {
            background: #0073a8;
        }

        .nqt-style-1 .nqt-playback-time {
            color: #64748b;
            font-size: 13px;
            font-weight: 500;
        }

        .nqt-style-1 .nqt-voice-btn {
            color: #64748b;
            margin-left: 0;
        }

        /* 2. Phong cách "Dark Mode" */
        .nqt-style-2 {
            background: #111827;
            border-radius: 50px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            border: 1px solid #374151;
            color: #f9fafb;
            gap: 12px;
        }

        .nqt-style-2 .nqt-playback-button {
            background: #10b981;
            border-radius: 50%;
            width: 44px;
            height: 44px;
            color: #111827;
        }

        .nqt-style-2 .nqt-progress-bar {
            height: 5px;
            border-radius: 3px;
            background: #374151;
            flex: 1;
        }

        .nqt-style-2 .nqt-progress-bar-filled {
            background: #10b981;
        }

        .nqt-style-2 .nqt-playback-time {
            color: #9ca3af;
            font-size: 13px;
            font-weight: 500;
        }

        .nqt-style-2 .nqt-voice-btn {
            color: #9ca3af;
            margin-left: 0;
        }

        .nqt-style-2 .nqt-vp-header {
            background: #1f2937;
            color: #d1d5db;
            border-color: #374151;
        }

        .nqt-style-2 .nqt-voice-picker {
            background: #111827;
            border-color: #374151;
            color: #e5e7eb;
        }

        .nqt-style-2 .nqt-vp-item:hover {
            background: #374151;
        }

        .nqt-style-2 .nqt-vp-item.nqt-vp-active {
            background: #064e3b;
            color: #34d399;
        }

        .nqt-style-2 .nqt-vp-group-title {
            color: #6b7280;
        }

        /* 3. Phong cách "Thẻ Mini" */
        .nqt-style-3 {
            background: #ffffff;
            border-radius: 16px;
            box-shadow: 0 4px 25px rgba(0, 0, 0, 0.08);
            border: 1px solid #f1f5f9;
            padding: 14px;
            gap: 14px;
        }

        .nqt-style-3 .nqt-cover-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: #eff6ff;
            color: #3b82f6;
            border-radius: 12px;
            flex-shrink: 0;
        }

        .nqt-style-3 .nqt-player-body {
            flex-direction: column;
            align-items: flex-start;
            justify-content: center;
            gap: 6px;
        }

        .nqt-style-3 .nqt-title-marquee {
            display: block;
            font-weight: 600;
            font-size: 14px;
            color: #0f172a;
            max-width: 100%;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            line-height: 1.2;
        }

        .nqt-style-3 .nqt-progress-wrapper {
            gap: 8px;
        }

        .nqt-style-3 .nqt-progress-bar {
            height: 4px;
            border-radius: 2px;
            background: #f1f5f9;
            flex: 1;
        }

        .nqt-style-3 .nqt-progress-bar-filled {
            background: #4f46e5;
        }

        .nqt-style-3 .nqt-playback-time {
            color: #64748b;
            font-size: 11px;
        }

        .nqt-style-3 .nqt-voice-btn {
            order: 4;
            color: #94a3b8;
            margin: 0 6px;
        }

        .nqt-style-3 .nqt-playback-button {
            order: 5;
            background: #f8fafc;
            color: #4f46e5;
            border-radius: 50%;
            width: 42px;
            height: 42px;
            flex-shrink: 0;
        }

        .nqt-style-3 .nqt-playback-button:hover {
            background: #eff6ff;
        }

        /* 4. Phong cách "Phẳng tối giản" */
        .nqt-style-4 {
            background: transparent;
            padding: 8px 0;
            gap: 16px;
        }

        .nqt-style-4 .nqt-playback-button {
            background: transparent;
            color: #1e293b;
            width: 32px;
            height: 32px;
        }

        .nqt-style-4 .nqt-progress-bar {
            height: 4px;
            background: #e2e8f0;
            border-radius: 2px;
            flex: 1;
        }

        .nqt-style-4 .nqt-progress-bar-filled {
            background: #1e293b;
        }

        .nqt-style-4 .nqt-playback-time {
            color: #64748b;
            font-size: 13px;
            font-variant-numeric: tabular-nums;
        }

        .nqt-style-4 .nqt-voice-btn {
            color: #94a3b8;
        }

        /* 5. Phong cách "Tối giản" */
        .nqt-style-5.nqt-playback-container {
            background: #ffffff;
            border-radius: 50px;
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
            border: 1px solid #f1f5f9;
            padding: 6px;
            width: max-content;
            margin: 0;
            justify-content: center;
            gap: 8px;
        }

        .nqt-wrap-auto .nqt-style-5.nqt-playback-container {
            margin: 0 auto;
        }

        .nqt-style-5 .nqt-playback-button {
            background: #ef4444;
            border-radius: 50%;
            width: 44px;
            height: 44px;
        }

        .nqt-style-5 .nqt-player-body {
            display: none !important;
        }

        .nqt-style-5 .nqt-divider {
            display: block;
            width: 1px;
            height: 24px;
            background: #e2e8f0;
            margin: 0 4px;
        }

        .nqt-style-5 .nqt-voice-btn {
            color: #64748b;
            margin-right: 8px;
            margin-left: 0;
        }

        /* Shared Container Properties */
        .nqt-tts-wrapper {
            z-index: 99999;
            box-sizing: border-box;
            transition: all 0.3s ease;
        }

        /* Layout Positions extracted from styles */
        .nqt-wrap-auto.nqt-pos-bottom-center {
            position: fixed;
            bottom: 25px;
            left: 50%;
            transform: translateX(-50%);
            width: 90%;
            max-width: 440px;
        }

        .nqt-wrap-auto.nqt-pos-bottom-left {
            position: fixed;
            bottom: 25px;
            left: 25px;
            width: 90%;
            max-width: 440px;
        }

        .nqt-wrap-auto.nqt-pos-bottom-right {
            position: fixed;
            bottom: 25px;
            right: 25px;
            width: 90%;
            max-width: 440px;
        }

        .nqt-wrap-shortcode {
            position: relative;
            width: 100%;
            max-width: 600px;
            margin: 20px 0;
        }

        .nqt-playback-container {
            position: relative;
            display: flex;
            align-items: center;
            padding: 10px 16px;
            font-family: system-ui, -apple-system, sans-serif;
            box-sizing: border-box;
            width: 100%;
        }

        .nqt-playback-button {
            color: white;
            border: none;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            flex-shrink: 0;
            transition: all 0.2s;
            outline: none;
        }

        .nqt-loading {
            border: 2px solid #ffffff;
            border-bottom-color: transparent;
            border-radius: 50%;
            display: inline-block;
            box-sizing: border-box;
            animation: nqt-rotation 1s linear infinite;
        }

        @keyframes nqt-rotation {
            0% {
                transform: rotate(0deg);
            }

            100% {
                transform: rotate(360deg);
            }
        }

        .nqt-progress-bar {
            flex: 1;
            overflow: hidden;
            cursor: pointer;
            position: relative;
            transition: all 0.2s;
        }

        .nqt-progress-bar-filled {
            height: 100%;
            width: 0%;
            transition: width 0.1s linear;
        }

        .nqt-playback-time {
            font-size: 13px;
            white-space: nowrap;
            text-align: right;
            font-variant-numeric: tabular-nums;
        }

        /* Voice picker button */
        .nqt-voice-btn {
            background: none;
            border: none;
            cursor: pointer;
            font-size: 18px;
            padding: 4px 6px;
            margin-left: 8px;
            flex-shrink: 0;
            opacity: 0.6;
            transition: opacity 0.2s, transform 0.2s;
            line-height: 1;
        }

        .nqt-voice-btn:hover {
            opacity: 1;
            transform: scale(1.15);
        }

        /* Voice picker dropdown */
        .nqt-voice-picker {
            position: absolute;
            bottom: calc(100% + 8px);
            right: 0;
            width: 280px;
            max-height: 360px;
            overflow-y: auto;
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 12px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
            z-index: 100000;
            display: none;
            font-size: 13px;
            color: #1e293b;
        }

        .nqt-voice-picker.nqt-vp-open {
            display: block;
            animation: nqtFadeIn 0.15s ease;
        }

        @keyframes nqtFadeIn {
            from {
                opacity: 0;
                transform: translateY(6px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .nqt-vp-header {
            padding: 10px 14px;
            font-weight: 600;
            font-size: 13px;
            color: #64748b;
            border-bottom: 1px solid #f1f5f9;
            position: sticky;
            top: 0;
            background: #fff;
            border-radius: 12px 12px 0 0;
        }

        .nqt-vp-group {
            padding: 6px 0;
        }

        .nqt-vp-group-title {
            padding: 6px 14px 4px;
            font-size: 11px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: #94a3b8;
        }

        .nqt-vp-item {
            padding: 8px 14px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: background 0.1s;
        }

        .nqt-vp-item:hover {
            background: #f8fafc;
        }

        .nqt-vp-item.nqt-vp-active {
            background: #eff6ff;
            color: #1d4ed8;
            font-weight: 600;
        }

        .nqt-vp-item .nqt-vp-check {
            display: none;
            font-size: 14px;
        }

        .nqt-vp-item.nqt-vp-active .nqt-vp-check {
            display: inline;
        }

        .nqt-vp-item-name {
            flex: 1;
        }

        .nqt-vp-item-badge {
            font-size: 10px;
            padding: 2px 6px;
            border-radius: 4px;
            margin-left: 6px;
            font-weight: 600;
        }

        .nqt-vp-badge-browser {
            background: #dcfce7;
            color: #166534;
        }

        .nqt-vp-badge-ai {
            background: #dbeafe;
            color: #1e40af;
        }

        /* Scrollbar */
        .nqt-voice-picker::-webkit-scrollbar {
            width: 5px;
        }

        .nqt-voice-picker::-webkit-scrollbar-track {
            background: transparent;
        }

        .nqt-voice-picker::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 4px;
        }

        .nqt-settings-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            padding: 4px 14px 10px;
        }

        .nqt-ctrl-btn {
            background: #f1f5f9;
            border: 1px solid #e2e8f0;
            border-radius: 6px;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
            color: #475569;
            transition: all 0.2s;
        }

        .nqt-ctrl-btn:hover {
            background: #e2e8f0;
        }

        .nqt-ctrl-value {
            font-size: 14px;
            font-weight: 600;
            color: #1e293b;
            min-width: 44px;
            text-align: center;
        }

        .nqt-style-2 .nqt-ctrl-btn {
            background: #1f2937;
            border-color: #374151;
            color: #d1d5db;
        }
        
        .nqt-style-2 .nqt-ctrl-btn:hover {
            background: #374151;
        }

        .nqt-style-2 .nqt-ctrl-value {
            color: #f3f4f6;
        }

        @media (max-width: 480px) {
            .nqt-wrap-auto.nqt-pos-bottom-center {
                width: 60%;
                left: 20%;
                transform: none;
                bottom: 20px;
            }

            .nqt-wrap-auto.nqt-pos-bottom-left {
                width: 60%;
                left: 20px;
                transform: none;
                bottom: 20px;
            }

            .nqt-wrap-auto.nqt-pos-bottom-right {
                width: 60%;
                right: 20px;
                transform: none;
                bottom: 20px;
            }

            .nqt-voice-picker {
                width: 260px;
            }
        }