/* 04-settings: ayar panelleri, toggle, bilgi butonlari, arkaplan slayti/muzik, rozetler */
        .settings-section {
            background: #f8fafc;
            border-radius: var(--radius-md);
            padding: 22px;
            margin-bottom: 24px;
            border: 1px solid var(--border-color);
        }

        .settings-section h3 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-dark);
        }

        .settings-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 18px;
        }

        .color-picker-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .color-picker-group label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
        }

        .color-picker-wrapper {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .color-picker-wrapper input[type="color"] {
            width: 48px;
            height: 40px;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-sm);
            cursor: pointer;
            background: white;
        }

        .color-value {
            font-size: 12px;
            color: var(--text-light);
            font-family: 'Courier New', monospace;
            flex: 1;
        }

        .loader-style-select {
            width: 100%;
            max-width: 320px;
            padding: 10px 34px 10px 14px;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-family: inherit;
            cursor: pointer;
            background-color: white;
            color: var(--text-dark);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='%2364748b' d='M233.4 406.6c12.5 12.5 32.8 12.5 45.3 0l192-192c12.5-12.5 12.5-32.8 0-45.3s-32.8-12.5-45.3 0L256 338.7 86.6 169.4c-12.5-12.5-32.8-12.5-45.3 0s-12.5 32.8 0 45.3l192 192z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            background-size: 12px;
        }

        .loader-style-select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 4px var(--shadow-color);
        }

        input[type="range"] {
            width: 100%;
            max-width: 320px;
            accent-color: var(--primary-color);
            cursor: pointer;
        }

        /* Settings header / description */
        .settings-section-head {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 0;
        }

        /* Başlık ile gövde arası boşluk gövdeden verilir; böylece bilgi paneli
           kapalı ve gövdesiz bölümlerde ölü boşluk kalmaz */
        .settings-section > .settings-grid,
        .settings-section > .loader-preview,
        .settings-section > #fullscreenBgBody {
            margin-top: 16px;
        }

        .settings-section-headtext h3 {
            margin-bottom: 4px;
        }

        .settings-title-row {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 4px;
        }

        .settings-title-row h3 {
            margin-bottom: 0;
        }

        .info-btn {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 11px;
            border: 1.5px solid var(--primary-color);
            background: rgba(6, 182, 212, 0.08);
            color: var(--primary-dark);
            border-radius: 999px;
            font-family: inherit;
            font-size: 11px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.2s ease;
            flex-shrink: 0;
        }

        .info-btn:hover {
            background: var(--primary-color);
            color: white;
        }

        .info-btn.active {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: white;
        }

        /* Tüm ayar bölümlerinde "Bilgi" butonuna basınca açılan tek tip açıklama kutusu */
        .info-panel {
            display: none;
            flex-direction: column;
            gap: 10px;
            margin-top: 12px;
        }

        .info-panel:not([hidden]) {
            display: flex;
        }

        .info-panel-text {
            font-size: 12.5px;
            color: var(--text-light);
            line-height: 1.6;
            padding: 10px 12px;
            background: rgba(6, 182, 212, 0.05);
            border-left: 3px solid var(--primary-color);
            border-radius: 6px;
        }

        .info-panel .toggle-row-sub {
            margin-top: 4px;
        }

        .info-panel .settings-note {
            margin-top: 0;
        }

        .settings-section.emphasis {
            background: linear-gradient(160deg, rgba(6, 182, 212, 0.07), rgba(6, 182, 212, 0.015));
            border: 1px solid rgba(6, 182, 212, 0.35);
        }

        /* Toggle switch */
        .toggle-switch {
            position: relative;
            display: inline-block;
            width: 50px;
            height: 28px;
            flex-shrink: 0;
        }

        .toggle-switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .toggle-slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #cbd5e1;
            transition: 0.25s;
            border-radius: 999px;
        }

        .toggle-slider::before {
            position: absolute;
            content: "";
            height: 20px;
            width: 20px;
            left: 4px;
            bottom: 4px;
            background-color: white;
            transition: 0.25s;
            border-radius: 50%;
            box-shadow: 0 2px 5px rgba(0,0,0,0.25);
        }

        .toggle-switch input:checked + .toggle-slider {
            background: linear-gradient(120deg, var(--primary-color), var(--primary-dark));
        }

        .toggle-switch input:checked + .toggle-slider::before {
            transform: translateX(22px);
        }

        .toggle-switch input:focus-visible + .toggle-slider {
            box-shadow: 0 0 0 4px var(--shadow-color);
        }

        .toggle-row {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .toggle-row-label {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-dark);
        }

        .toggle-row-sub {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 2px;
        }

        .settings-note {
            display: block;
            font-size: 12.5px;
            line-height: 1.7;
            padding: 12px 14px;
            border-radius: var(--radius-sm);
            margin-top: 14px;
        }

        .settings-note.warn {
            background: rgba(245, 158, 11, 0.10);
            border: 1px dashed #f59e0b;
            color: #92400e;
        }

        .settings-note.info {
            background: rgba(6, 182, 212, 0.08);
            border: 1px dashed var(--primary-color);
            color: var(--primary-dark);
        }

        /* Disabled section overlay (used when native download active) */
        .settings-section.is-disabled {
            opacity: 0.45;
            pointer-events: none;
            filter: grayscale(0.4);
            position: relative;
        }

        .settings-section.is-disabled::after {
            content: 'Gelişmiş Mod Loader pasifken bu ayarlar kullanılmaz';
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 10px;
            font-size: 12px;
            font-weight: 700;
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.55);
            border-radius: var(--radius-md);
        }

        /* Tam ekran arkaplan slaytı - görsel slotları */
        .bg-image-slots {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            justify-items: center;
            gap: 14px;
            margin-top: 18px;
        }

        .bg-image-slot {
            position: relative;
            aspect-ratio: 16 / 9;
            max-width: 300px;
            border: 2px dashed var(--border-color);
            border-radius: var(--radius-sm);
            background: white;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .bg-image-slot:hover {
            border-color: var(--primary-color);
            background: rgba(6, 182, 212, 0.06);
            transform: translateY(-2px);
        }

        .bg-image-slot.filled {
            border-style: solid;
            border-color: var(--primary-color);
            cursor: default;
        }

        .bg-image-slot.filled:hover {
            transform: none;
        }

        .bg-image-slot img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Görsel yokken ızgara tamamen gizlenir (altında boşluk kalmaz) */
        .bg-image-slots:empty {
            display: none;
        }

        .bg-image-slot-remove {
            position: absolute;
            top: 6px;
            right: 6px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: none;
            background: rgba(15, 23, 42, 0.65);
            color: white;
            font-size: 14px;
            line-height: 1;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease;
        }

        .bg-image-slot-remove:hover {
            background: var(--danger-color);
        }

        .bg-image-slot-index {
            position: absolute;
            bottom: 6px;
            left: 6px;
            background: rgba(15, 23, 42, 0.65);
            color: white;
            font-size: 10px;
            font-weight: 700;
            padding: 2px 7px;
            border-radius: 999px;
        }

        /* Tam ekran mod loader - opsiyonel arka plan müzikleri (mp3) */
        .bg-audio-label {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-dark);
        }

        .btn-bg-audio-pick,
        .btn-bg-image-pick,
        .btn-bg-audio-remove {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            font-family: inherit;
            font-size: 12.5px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .btn-bg-audio-pick,
        .btn-bg-image-pick {
            border: none;
            background: linear-gradient(120deg, var(--primary-color), var(--primary-dark));
            color: white;
        }

        .btn-bg-audio-pick {
            margin-top: 14px;
        }

        .btn-bg-audio-pick:hover,
        .btn-bg-image-pick:hover {
            filter: brightness(1.08);
        }

        .btn-bg-image-pick {
            margin-top: 14px;
        }

        .btn-bg-audio-pick:disabled,
        .btn-bg-image-pick:disabled {
            opacity: 0.55;
            cursor: not-allowed;
        }

        .btn-bg-audio-remove {
            border: 2px solid var(--border-color);
            background: white;
            color: var(--text-light);
        }

        .btn-bg-audio-remove:hover {
            border-color: var(--danger-color);
            color: var(--danger-color);
            background: rgba(239, 68, 68, 0.06);
        }

        /* Tam ekran gövdesi içindeki alt kartlar (Görseller / Müzikler / MP3 Çalar) */
        .settings-subcard {
            background: var(--surface-white, #fff);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 18px;
        }

        #fullscreenBgBody > .settings-subcard:first-child {
            margin-top: 16px;
        }

        .settings-subcard + .settings-subcard {
            margin-top: 14px;
        }

        .subcard-title {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .subcard-title i {
            color: var(--primary-color);
        }

        .settings-subcard > .settings-grid {
            margin-top: 12px;
        }

        /* Tam ekran mod loader - birden fazla arka plan müziği listesi */
        .bg-audio-block-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 12px;
        }

        .bg-audio-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 12px;
        }

        .bg-audio-empty {
            font-size: 12px;
            color: var(--text-light);
        }

        .bg-audio-track-row {
            display: flex;
            flex-direction: column;
            gap: 6px;
            padding: 8px 10px;
            background: var(--surface-alt);
            border-radius: var(--radius-sm);
        }

        .bg-audio-track-main {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .bg-audio-track-index {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(6, 182, 212, 0.15);
            color: var(--primary-dark);
            font-size: 11px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .bg-audio-track-name-input {
            flex: 1;
            min-width: 0;
            padding: 7px 10px;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 12.5px;
            font-weight: 600;
            font-family: inherit;
            color: var(--primary-dark);
            background: white;
            transition: all 0.25s ease;
        }

        .bg-audio-track-name-input:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 4px var(--shadow-color);
        }

        .bg-audio-track-file {
            margin-left: 32px;
            font-size: 11px;
            color: var(--text-light);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .bg-audio-track-row .btn-bg-audio-remove {
            border: none;
            width: 26px;
            height: 26px;
            padding: 0;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        /* Ayar başlıklarının yanında gösterilen Aktif/Pasif durum rozeti */
        .status-badge {
            display: inline-flex;
            align-items: center;
            padding: 3px 11px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 800;
            letter-spacing: 0.02em;
            flex-shrink: 0;
        }

        .status-badge-on {
            background: rgba(34, 197, 94, 0.14);
            color: #15803d;
        }

        .status-badge-off {
            background: rgba(239, 68, 68, 0.12);
            color: var(--danger-dark);
        }

        /* Loader tasarımı - ek onay kutulu ayarlar (yumuşak animasyon, gölge efekti) */
        .checkbox-option-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
        }

        .checkbox-option-row input[type="checkbox"] {
            width: 17px;
            height: 17px;
            accent-color: var(--primary-color);
            cursor: pointer;
        }

        #fullscreenBgBody.is-off {
            opacity: 0.45;
            pointer-events: none;
            filter: grayscale(0.4);
        }

        .settings-reset-row {
            display: flex;
            justify-content: flex-end;
            margin-top: 6px;
        }

        .btn-reset-settings {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border: 2px solid var(--border-color);
            background: white;
            color: var(--text-light);
            border-radius: 999px;
            font-family: inherit;
            font-size: 12.5px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .btn-reset-settings:hover {
            border-color: var(--danger-color);
            color: var(--danger-color);
            background: rgba(239, 68, 68, 0.06);
        }