* { box-sizing: border-box; }
        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            background: linear-gradient(135deg, #0f172a 0%, #334155 100%);
            min-height: 100vh;
            color: #f8fafc;
            direction: rtl;
        }
        body.lang-en { direction: ltr; }
        .lang-btn {
            padding: 6px 12px;
            border-radius: 8px;
            text-decoration: none;
            color: rgba(148, 163, 184, 0.9);
            border: 1px solid rgba(148, 163, 184, 0.3);
            font-size: 13px;
            transition: all 0.2s;
        }
        .lang-btn:hover { color: #f8fafc; border-color: rgba(96, 165, 250, 0.5); background: rgba(59, 130, 246, 0.2); }
        .lang-btn.active { color: #60a5fa; border-color: rgba(96, 165, 250, 0.6); background: rgba(59, 130, 246, 0.15); }
        .customer-header .lang-switcher {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin-top: 16px;
            flex-wrap: wrap;
        }
        .customer-header .lang-switcher .lang-btn {
            padding: 8px 16px;
            font-size: 13px;
            text-align: center;
            white-space: nowrap;
            -webkit-tap-highlight-color: transparent;
        }
        @media (max-width: 480px) {
            .customer-header .lang-switcher {
                margin-top: 14px;
                gap: 10px;
                max-width: 100%;
                padding-inline: max(12px, env(safe-area-inset-left, 0px)) max(12px, env(safe-area-inset-right, 0px));
            }
            .customer-header .lang-switcher .lang-btn {
                flex: 1;
                min-width: 0;
                min-height: 44px;
                padding: 10px 14px;
                font-size: 14px;
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }
        .bg-blur {
            position: fixed;
            inset: 0;
            background: radial-gradient(circle at 20% 20%, rgba(59,130,246,0.4), transparent 50%),
                        radial-gradient(circle at 80% 0%, rgba(14,165,233,0.4), transparent 50%),
                        radial-gradient(circle at 50% 80%, rgba(139,92,246,0.35), transparent 50%);
            filter: blur(40px);
            z-index: -1;
        }
        .container {
            max-width: 1200px;
            margin: 32px auto;
            padding: 24px;
        }
        .card {
            position: relative;
            background: rgba(15, 23, 42, 0.72);
            border: 1px solid rgba(96, 165, 250, 0.12);
            border-radius: 20px;
            padding: 24px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.02) inset;
            backdrop-filter: blur(14px);
        }
        .card .card {
            background: rgba(2, 6, 23, 0.5);
            border: 1px solid rgba(148, 163, 184, 0.2);
            border-radius: 18px;
            padding: 18px;
            box-shadow: none;
        }
        h1, h2, h3 { margin: 0 0 16px; font-weight: 600; }
        .customer-header {
            width: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0;
        }
        .customer-header .brand-logo { margin-bottom: 0; }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 28px;
            user-select: none;
            direction: ltr;
            background: rgba(2, 6, 23, 0.5);
            border: 1px solid rgba(96, 165, 250, 0.25);
            border-radius: 14px;
            padding: 12px 28px;
            gap: 16px;
        }
        .brand-logo .logo-word {
            font-family: 'Orbitron', sans-serif;
            font-weight: 900;
            font-size: 32px;
            letter-spacing: 4px;
            text-transform: uppercase;
            line-height: 1;
            color: #60a5fa;
            text-shadow: 0 0 24px rgba(96, 165, 250, 0.3);
        }
        @media (max-width: 480px) {
            .brand-logo .logo-word { font-size: 20px; letter-spacing: 2px; }
            .brand-logo { padding: 9px 16px; gap: 10px; }
        }
        .grid {
            display: grid;
            gap: 20px;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        }
        .customer-page-wrap {
            max-width: 520px;
            margin: 0 auto;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .customer-card {
            width: 100%;
            max-width: 520px;
            margin: 16px auto 0;
            text-align: center;
        }
        .customer-card .copy-row {
            justify-content: center;
        }
        .customer-card .copy-row > div {
            text-align: center;
        }
        .customer-card h3 {
            font-size: 20px;
            margin-bottom: 10px;
            color: #e2e8f0;
            text-align: center;
            width: 100%;
        }
        .customer-card .info-grid {
            display: grid;
            gap: 12px;
            margin-top: 16px;
        }
        .customer-card .info-row {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 14px 18px;
            border-radius: 12px;
            background: rgba(2, 6, 23, 0.45);
            border: 1px solid rgba(148, 163, 184, 0.2);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
            transition: transform 0.15s ease, border-color 0.15s ease;
            min-height: 54px;
            gap: 4px;
        }
        .customer-card .info-row:hover {
            transform: translateY(-1px);
            border-color: rgba(96, 165, 250, 0.3);
        }
        .customer-card .info-label {
            color: rgba(248, 250, 252, 0.65);
            font-size: 14px;
            text-align: center;
        }
        .customer-card .info-value {
            font-weight: 600;
            font-size: 15px;
            word-break: break-word;
            text-align: center;
        }
        .customer-card .info-actions {
            justify-self: center;
        }
        .customer-card .copy-btn {
            padding: 6px 12px;
            font-size: 12px;
            border-radius: 8px;
            background: rgba(59, 130, 246, 0.2);
            border: 1px solid rgba(96, 165, 250, 0.3);
            color: #60a5fa;
            cursor: pointer;
            transition: background 0.2s ease;
        }
        .customer-card .copy-btn:hover {
            background: rgba(59, 130, 246, 0.35);
        }
        .customer-card .btn.ghost {
            border-color: rgba(96, 165, 250, 0.4);
        }
        .customer-card .btn.secondary {
            border-color: rgba(96, 165, 250, 0.45);
        }
        .btn-protection {
            background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
            border: none !important;
            color: #fff !important;
            font-size: 14px;
            padding: 12px 20px;
        }
        .btn-protection:hover {
            box-shadow: 0 10px 24px rgba(16, 185, 129, 0.4) !important;
        }
        .btn-protection-outline {
            background: transparent !important;
            border: 1px solid rgba(239, 68, 68, 0.5) !important;
            color: #fca5a5 !important;
            font-size: 14px;
            padding: 12px 20px;
        }
        .btn-protection-outline:hover {
            background: rgba(239, 68, 68, 0.15) !important;
            border-color: rgba(239, 68, 68, 0.7) !important;
            color: #fecaca !important;
        }
        @media (max-width: 600px) {
            .customer-card .info-row {
                padding: 10px 12px;
                min-height: 44px;
            }
            .customer-card .info-label { font-size: 12px; }
            .customer-card .info-value { font-size: 13px; }
            .customer-card .copy-btn { padding: 4px 8px; font-size: 11px; }
        }
        .input, select {
            width: 100%;
            padding: 12px 14px;
            border-radius: 12px;
            border: 1px solid rgba(148, 163, 184, 0.3);
            background: rgba(15, 23, 42, 0.6);
            color: #f8fafc;
            outline: none;
        }
        .input.input-compact {
            padding: 8px 10px;
            border-radius: 10px;
            font-size: 13px;
        }
        .input::placeholder { color: rgba(248, 250, 252, 0.6); }
        .btn {
            padding: 12px 18px;
            border: none;
            border-radius: 12px;
            cursor: pointer;
            background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
            color: #fff;
            font-weight: 600;
            transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
        }
        .btn:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(59,130,246,0.4); }
        .btn.secondary {
            background: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.95) 100%);
            border: 1px solid rgba(96, 165, 250, 0.35);
            color: #e2e8f0;
        }
        .btn.secondary:hover { background: rgba(51, 65, 85, 0.95); border-color: rgba(96, 165, 250, 0.5); }
        .btn.ghost {
            background: rgba(148, 163, 184, 0.08);
            border: 1px solid rgba(148, 163, 184, 0.35);
            color: #cbd5e1;
        }
        .btn.ghost:hover { background: rgba(148, 163, 184, 0.18); border-color: rgba(96, 165, 250, 0.4); color: #f1f5f9; }
        .btn.btn-sm {
            padding: 4px 8px;
            font-size: 11px;
            border-radius: 8px;
            min-height: 26px;
        }
        .taskbar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 16px 0;
        }
        .taskbar .task-btn {
            padding: 10px 14px;
            border-radius: 12px;
            border: 1px solid rgba(148, 163, 184, 0.3);
            background: rgba(15, 23, 42, 0.8);
            color: #f8fafc;
            cursor: pointer;
            font-weight: 600;
            transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
        }
        .taskbar .task-btn.active {
            background: rgba(59, 130, 246, 0.85);
            border-color: rgba(59, 130, 246, 0.9);
            box-shadow: 0 10px 20px rgba(59,130,246,0.3);
        }
        .taskbar a.task-btn {
            text-decoration: none;
            display: inline-flex;
            align-items: center;
        }
        .taskbar a.task-btn:hover,
        .taskbar .task-btn.task-btn-download:hover {
            background: rgba(34, 197, 94, 0.3);
            border-color: rgba(34, 197, 94, 0.5);
        }
        .taskbar .task-btn.task-btn-download {
            background: rgba(34, 197, 94, 0.25);
            border-color: rgba(34, 197, 94, 0.5);
        }
        #googlePlayTabs {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 10px;
        }
        #googlePlayTabs .task-btn {
            min-height: 44px;
            padding: 10px 14px;
            border-radius: 12px;
            border: 1px solid rgba(148, 163, 184, 0.35);
            background: rgba(15, 23, 42, 0.78);
            color: #f8fafc;
            cursor: pointer;
            font-weight: 700;
            font-size: 14px;
            line-height: 1.35;
            text-align: center;
            white-space: normal;
            transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
        }
        #googlePlayTabs .task-btn:hover {
            transform: translateY(-1px);
            border-color: rgba(96, 165, 250, 0.55);
            box-shadow: 0 8px 18px rgba(59,130,246,0.22);
        }
        #googlePlayTabs .task-btn.active {
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.92) 0%, rgba(37, 99, 235, 0.94) 100%);
            border-color: rgba(96, 165, 250, 0.95);
            box-shadow: 0 10px 24px rgba(59,130,246,0.3);
        }
        .tags { display: flex; gap: 10px; flex-wrap: wrap; }
        .tag {
            padding: 10px 14px;
            border-radius: 12px;
            background: rgba(148, 163, 184, 0.2);
            cursor: pointer;
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }
        .tag input { display: none; }
        .tag.active { background: rgba(59, 130, 246, 0.6); border-color: rgba(59,130,246,0.9); }
        .alert { padding: 12px 16px; border-radius: 12px; margin-bottom: 12px; }
        .alert.error { background: rgba(239, 68, 68, 0.2); border: 1px solid rgba(239, 68, 68, 0.5); }
        .alert.success { background: rgba(34, 197, 94, 0.2); border: 1px solid rgba(34, 197, 94, 0.5); }
        .table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 16px;
            font-size: 14px;
        }
        .table th, .table td {
            padding: 10px;
            border-bottom: 1px solid rgba(148, 163, 184, 0.2);
            text-align: right;
            vertical-align: top;
        }
        .copy-row { display: flex; gap: 10px; align-items: center; }
        .copy-row .input {
            flex: 1;
            min-width: 0;
        }
        .copy-btn {
            padding: 4px 8px;
            border-radius: 8px;
            border: 1px solid rgba(148, 163, 184, 0.4);
            background: rgba(15, 23, 42, 0.8);
            color: #f8fafc;
            cursor: pointer;
            font-size: 11px;
            min-height: 26px;
        }
        .account-process-wrap {
            margin-top: 16px;
        }
        .account-process-wrap > h3 {
            margin: 0 0 6px;
            font-size: 20px;
            color: #f1f5f9;
        }
        .account-process-sub {
            margin: 0 0 14px;
            color: #94a3b8;
            font-size: 13px;
            line-height: 1.6;
        }
        .account-process-status {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            padding: 10px 14px;
            margin-bottom: 14px;
            border-radius: 14px;
            border: 1px solid rgba(148, 163, 184, 0.25);
            background: rgba(2, 6, 23, 0.35);
        }
        .account-process-status-label {
            color: #e2e8f0;
            font-size: 14px;
            font-weight: 600;
        }
        .account-process-card {
            padding: 18px;
        }
        .account-process-card-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .account-process-record-no {
            color: #f8fafc;
            font-size: 15px;
            font-weight: 600;
        }
        .account-process-expiry-badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 9999px;
            border: 1px solid rgba(234, 179, 8, 0.65);
            color: #fde68a;
            font-size: 12px;
            font-weight: 600;
            direction: ltr;
        }
        .account-process-rows {
            display: grid;
            gap: 10px;
        }
        .account-process-row {
            display: grid;
            grid-template-columns: 120px minmax(0, 1fr) auto;
            gap: 10px;
            align-items: center;
        }
        .account-process-label {
            color: #f8fafc;
            font-size: 14px;
            font-weight: 600;
            text-align: right;
            white-space: nowrap;
        }
        .account-process-value {
            width: 100%;
            padding: 10px 14px;
            border-radius: 12px;
            border: 1px solid rgba(148, 163, 184, 0.28);
            background: rgba(2, 6, 23, 0.55);
            color: #f8fafc;
            font-size: 13px;
            text-align: right;
            outline: none;
        }
        .account-process-value[readonly] {
            cursor: default;
        }
        .account-process-row.is-editing .account-process-value {
            border-color: rgba(96, 165, 250, 0.55);
            background: rgba(15, 23, 42, 0.9);
            cursor: text;
        }
        .account-process-actions {
            display: flex;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .account-process-footer {
            margin-top: 16px;
            display: flex;
            justify-content: flex-end;
        }
        @media (max-width: 720px) {
            .account-process-row {
                grid-template-columns: 1fr;
            }
            .account-process-label {
                text-align: right;
            }
            .account-process-actions {
                justify-content: flex-start;
            }
        }
        .table {
            font-size: 12px;
        }
        .table th, .table td {
            padding: 8px;
        }
        .badge { display: inline-block; padding: 4px 10px; border-radius: 9999px; background: rgba(59, 130, 246, 0.4); font-size: 13px; font-weight: 600; }
        .section-hidden { display: none; }
        .video-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.95);
            display: none;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 16px;
            z-index: 10;
        }
        .video-overlay.active { display: flex; }
        .video-overlay video {
            width: min(900px, 92vw);
            max-height: 70vh;
            height: auto;
            border-radius: 16px;
            object-fit: contain;
            background: #0f172a;
        }
        .video-overlay iframe {
            width: min(900px, 92vw);
            height: min(506px, 52vw);
            border-radius: 16px;
            background: #000;
            border: none;
        }
        .face-overlay {
            position: fixed;
            inset: 0;
            background: rgba(2, 6, 23, 0.96);
            display: none;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 14px;
            z-index: 11;
            text-align: center;
            padding: 24px;
        }
        .face-overlay.active { display: flex; }
        .face-modal-bg { position: fixed; inset: 0; background: rgba(0,0,0,0.7); display: none; align-items: center; justify-content: center; z-index: 12; padding: 24px; }
        .face-modal-bg.active { display: flex; }
        .face-modal { background: #1e293b; border: 1px solid rgba(148,163,184,0.3); border-radius: 16px; padding: 24px; max-width: 360px; width: 100%; }
        .pin-input-wrap { position: relative; display: inline-flex; align-items: center; width: 100%; max-width: 260px; margin: 0 auto; }
        .pin-input-wrap .input { padding-right: 40px; flex: 1; }
        .face-auth-options { display: flex; flex-direction: column; align-items: center; gap: 12px; width: 100%; max-width: 300px; }
        .customer-card .small { color: rgba(203, 213, 225, 0.85); margin-top: 8px; }
        .face-phone-form { display: flex; flex-direction: column; gap: 8px; width: 100%; }
        .face-divider { color: rgba(248,250,252,0.5); font-size: 13px; }
        .face-divider span { background: rgba(2,6,23,0.96); padding: 0 10px; }
        .small { font-size: 13px; color: rgba(203, 213, 225, 0.9); line-height: 1.5; }
        a { color: #93c5fd; text-decoration: none; }
        .folder-modal-bg {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.7);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 50;
        }
        .folder-modal-bg.active { display: flex; }
        .folder-modal {
            background: #1e293b;
            border: 1px solid rgba(148,163,184,0.3);
            border-radius: 16px;
            width: min(520px, 94vw);
            max-height: 70vh;
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }
        .folder-modal-header {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(148,163,184,0.2);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }
        .folder-modal-header h3 { margin: 0; font-size: 16px; }
        .folder-modal-path {
            padding: 10px 20px;
            font-size: 12px;
            color: #60a5fa;
            background: rgba(2,6,23,0.5);
            border-bottom: 1px solid rgba(148,163,184,0.15);
            word-break: break-all;
            direction: ltr;
            text-align: left;
        }
        .folder-modal-list {
            flex: 1;
            overflow-y: auto;
            padding: 8px 0;
        }
        .folder-modal-item {
            padding: 10px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #f8fafc;
            transition: background 0.15s;
            direction: ltr;
            text-align: left;
        }
        .folder-modal-item:hover {
            background: rgba(59,130,246,0.15);
        }
        .folder-modal-item .folder-icon {
            color: #fbbf24;
            font-size: 18px;
            flex-shrink: 0;
        }
        .folder-modal-footer {
            padding: 14px 20px;
            border-top: 1px solid rgba(148,163,184,0.2);
            display: flex;
            gap: 10px;
            justify-content: space-between;
        }
        .exports-modal-bg {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.7);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 51;
        }
        .exports-modal-bg.active { display: flex; }
        .exports-modal {
            background: #1e293b;
            border: 1px solid rgba(148,163,184,0.3);
            border-radius: 16px;
            width: min(480px, 94vw);
            max-height: 70vh;
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }
        .exports-modal-header {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(148,163,184,0.2);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }
        .exports-modal-header h3 { margin: 0; font-size: 16px; }
        .exports-modal-list {
            padding: 12px 20px;
            overflow-y: auto;
            max-height: 400px;
        }
        .exports-empty {
            padding: 24px;
            text-align: center;
            color: rgba(148,163,184,0.9);
        }
        .exports-modal-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 12px 14px;
            border-radius: 10px;
            background: rgba(15,23,42,0.5);
            border: 1px solid rgba(148,163,184,0.15);
            margin-bottom: 8px;
        }
        .exports-modal-item:last-child { margin-bottom: 0; }
        .exports-item-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
            min-width: 0;
        }
        .exports-item-name {
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .exports-item-date {
            font-size: 12px;
            color: rgba(148,163,184,0.8);
        }
        .exports-item-actions {
            display: flex;
            gap: 8px;
            flex-shrink: 0;
        }
        .exports-delete-form { margin: 0; display: inline; }
        @media (max-width: 768px) {
            .container {
                margin: 16px auto;
                padding: 14px;
            }
            .card {
                padding: 16px;
                border-radius: 16px;
            }
            .grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .copy-row {
                flex-direction: row;
                align-items: center;
                flex-wrap: wrap;
            }
            .table {
                font-size: 12px;
                display: block;
                overflow-x: auto;
            }
            .btn {
                width: 100%;
            }
            .taskbar {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 6px;
            }
            .taskbar .task-btn {
                white-space: nowrap;
            }
            #googlePlayTabs .task-btn { white-space: normal; }
            .customer-card .info-row {
                grid-template-columns: 1fr;
                text-align: center;
                padding: 6px;
            }
            .customer-card .info-actions {
                justify-self: center;
            }
            .customer-card .info-value {
                font-size: 12px;
            }
        }
        @media (max-width: 768px) {
            .customer-view {
                background: #07142b !important;
                color: #eef5ff !important;
            }
            .customer-view .bg-blur {
                display: none !important;
            }
            .customer-view .card {
                background: #0b1e3d !important;
                border: 1px solid #2b4f85 !important;
                backdrop-filter: none !important;
                -webkit-backdrop-filter: none !important;
                box-shadow: 0 12px 28px rgba(0, 0, 0, 0.52) !important;
            }
            .customer-view .brand-logo {
                background: #0a1b38 !important;
                border: 1px solid #3a6ab0 !important;
            }
            .customer-view .customer-card .info-row {
                background: #06152f !important;
                border: 1px solid #2f5a96 !important;
                box-shadow: none !important;
            }
            .customer-view .customer-card .info-label {
                color: #9cc4ff !important;
            }
            .customer-view .customer-card .info-value {
                color: #ffffff !important;
                font-weight: 700 !important;
            }
            .customer-view .customer-card .copy-btn {
                background: #11428a !important;
                border: 1px solid #5da0ff !important;
                color: #edf5ff !important;
            }
            .customer-view .customer-header .lang-switcher .lang-btn {
                background: #102a57 !important;
                border: 1px solid #4b79bf !important;
                color: #deecff !important;
            }
            .customer-view .customer-header .lang-switcher .lang-btn.active {
                background: #1a4f9f !important;
                border: 1px solid #79b1ff !important;
                color: #ffffff !important;
            }
            .customer-view .btn.secondary,
            .customer-view .btn.ghost {
                background: #113f87 !important;
                border: 1px solid #70abff !important;
                color: #eef6ff !important;
            }
            .customer-view .small {
                color: #c3dcff !important;
            }
        }

/* Settings Page Navigation & Visual Polish */
.settings-subnav {
    display: flex;
    gap: 10px;
    margin: 20px 0 24px 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.15);
    padding-bottom: 12px;
    flex-wrap: wrap;
}
.settings-subtab-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.2);
    color: #94a3b8;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    user-select: none;
}
.settings-subtab-btn:hover {
    color: #f8fafc;
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(96, 165, 250, 0.4);
}
.settings-subtab-btn.active {
    color: #38bdf8;
    background: rgba(14, 165, 233, 0.15);
    border-color: #38bdf8;
    box-shadow: 0 4px 14px rgba(14, 165, 233, 0.2);
}
.settings-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}
.settings-card-header h3 {
    margin: 0;
    font-size: 17px;
    font-weight: 600;
}
.settings-card-header .icon-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: rgba(56, 189, 248, 0.12);
    color: #38bdf8;
    font-size: 18px;
    flex-shrink: 0;
}
.danger-card {
    border-color: rgba(239, 68, 68, 0.3) !important;
    background: rgba(239, 68, 68, 0.04) !important;
}
.danger-card .settings-card-header .icon-badge {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}
.settings-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 20px;
}
.settings-group.hidden {
    display: none !important;
}