:root {
            --bg-dark: #0a0a0f;
            --bg-card: #12121a;
            --bg-input: #1a1a2e;
            --border-color: #2a2a3e;
            --text-primary: #e8e8f0;
            --text-secondary: #8888aa;
            --accent-orange: #ff6b35;
            --accent-gold: #ffd700;
            --accent-purple: #a855f7;
            --accent-blue: #3b82f6;
            --accent-green: #22c55e;
            --accent-red: #ef4444;
            --nano-color: #209CE9;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'IBM Plex Sans', sans-serif; background: var(--bg-dark); color: var(--text-primary); min-height: 100vh; }
        .login-container { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
        .login-box { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 40px; width: 400px; max-width: 90vw; }
        .login-box h1 { font-size: 1.5rem; margin-bottom: 8px; }
        .login-box p { color: var(--text-secondary); margin-bottom: 24px; }
        input, select, textarea { width: 100%; padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: 8px; color: var(--text-primary); font-size: 0.95rem; font-family: inherit; margin-bottom: 12px; }
        input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent-blue); }
        .btn { padding: 10px 20px; border: none; border-radius: 8px; cursor: pointer; font-family: inherit; font-weight: 600; font-size: 0.9rem; transition: all 0.2s; }
        .btn-primary { background: var(--accent-blue); color: white; }
        .btn-primary:hover { opacity: 0.9; }
        .btn-danger { background: var(--accent-red); color: white; }
        .btn-success { background: var(--accent-green); color: white; }
        .btn-sm { padding: 6px 12px; font-size: 0.8rem; }
        .btn-outline { background: transparent; border: 1px solid var(--border-color); color: var(--text-primary); }
        .btn-outline:hover { border-color: var(--text-secondary); }

        .admin-container { display: none; }
        .admin-header { background: var(--bg-card); border-bottom: 1px solid var(--border-color); padding: 12px 24px; display: flex; justify-content: space-between; align-items: center; }
        .admin-header h1 { font-size: 1.2rem; }
        .admin-header .admin-user { color: var(--accent-green); font-size: 0.85rem; margin-right: 12px; }
        .admin-tabs { display: flex; gap: 4px; background: var(--bg-card); border-bottom: 1px solid var(--border-color); padding: 0 24px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
        .admin-tab { padding: 12px 20px; cursor: pointer; color: var(--text-secondary); border-bottom: 2px solid transparent; font-weight: 500; white-space: nowrap; transition: all 0.2s; min-height: 44px; display: flex; align-items: center; }
        .admin-tab:hover { color: var(--text-primary); }
        .admin-tab.active { color: var(--accent-blue); border-bottom-color: var(--accent-blue); }
        .admin-content { padding: 24px; max-width: 1400px; margin: 0 auto; }
        .tab-panel { display: none; }
        .tab-panel.active { display: block; }

        .stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
        .stat-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 20px; }
        .stat-card .label { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 4px; }
        .stat-card .value { font-size: 1.8rem; font-weight: 700; }
        .stat-card .value.gold { color: var(--accent-gold); }
        .stat-card .value.blue { color: var(--accent-blue); }
        .stat-card .value.green { color: var(--accent-green); }
        .stat-card .value.purple { color: var(--accent-purple); }
        .stat-card .value.nano { color: var(--nano-color); }

        /* Table — zebra, hover, sticky, sortable */
        .table-container { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 12px; }
        .data-table { width: 100%; border-collapse: collapse; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; overflow: hidden; }
        .data-table th, .data-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border-color); white-space: nowrap; }
        .data-table th { background: var(--bg-input); color: var(--text-secondary); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; position: sticky; top: 0; z-index: 10; cursor: pointer; user-select: none; }
        .data-table th:hover { color: var(--text-primary); }
        .data-table th .sort-arrow { margin-left: 4px; font-size: 0.7rem; opacity: 0.5; }
        .data-table th.sorted .sort-arrow { opacity: 1; color: var(--accent-blue); }
        .data-table tbody tr:nth-child(even) { background: rgba(26, 26, 46, 0.4); }
        .data-table tbody tr:hover { background: rgba(59, 130, 246, 0.08); }
        .data-table tr:last-child td { border-bottom: none; }
        .data-table input[type="checkbox"] { width: auto; margin: 0; cursor: pointer; }

        /* Modal */
        .modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 2000; align-items: center; justify-content: center; }
        .modal-overlay.show { display: flex; }
        .modal { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 24px; width: 700px; max-width: 95vw; max-height: 90vh; overflow-y: auto; }
        .modal h2 { margin-bottom: 16px; }
        .modal-close { float: right; background: none; border: none; color: var(--text-secondary); font-size: 1.5rem; cursor: pointer; min-width: 44px; min-height: 44px; }

        .search-bar { display: flex; gap: 8px; margin-bottom: 16px; align-items: center; flex-wrap: wrap; }
        .search-bar input { flex: 1; min-width: 200px; }
        .pagination { display: flex; gap: 8px; justify-content: center; margin-top: 16px; flex-wrap: wrap; }
        .action-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 8px; }

        .online-list { display: flex; flex-wrap: wrap; gap: 8px; }
        .online-badge { background: var(--bg-input); border: 1px solid var(--border-color); border-radius: 20px; padding: 4px 12px; font-size: 0.85rem; }
        .online-badge::before { content: '●'; color: var(--accent-green); margin-right: 6px; }

        .broadcast-area textarea { width: 100%; min-height: 100px; padding: 12px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: 8px; color: var(--text-primary); font-family: inherit; resize: vertical; }

        .error-msg { color: var(--accent-red); font-size: 0.85rem; margin-top: 4px; }
        .success-msg { color: var(--accent-green); font-size: 0.85rem; margin-top: 4px; }
        .badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 0.75rem; font-weight: 600; }
        .badge-red { background: rgba(239,68,68,0.2); color: var(--accent-red); }
        .badge-green { background: rgba(34,197,94,0.2); color: var(--accent-green); }
        .badge-blue { background: rgba(59,130,246,0.2); color: var(--accent-blue); }
        .badge-purple { background: rgba(168,85,247,0.2); color: var(--accent-purple); }
        .badge-orange { background: rgba(255,107,53,0.2); color: var(--accent-orange); }

        /* Replay viewer */
        .replay-viewer { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 24px; }
        .replay-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 8px; }
        .replay-timeline { width: 100%; margin: 16px 0; }
        .replay-timeline input[type=range] { width: 100%; min-height: 44px; }
        .replay-controls { display: flex; gap: 8px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
        .replay-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
        .replay-stat-col { background: var(--bg-input); border-radius: 8px; padding: 12px; }
        .replay-stat-col h4 { margin-bottom: 8px; }
        .replay-events { max-height: 400px; overflow-y: auto; background: var(--bg-input); border-radius: 8px; padding: 12px; font-family: 'IBM Plex Mono', monospace; font-size: 0.8rem; line-height: 1.6; }
        .replay-event { padding: 2px 0; border-bottom: 1px solid var(--border-color); }
        .replay-event .time { color: var(--accent-blue); }
        .tower-hp-bar { height: 8px; background: var(--bg-dark); border-radius: 4px; overflow: hidden; margin: 4px 0; }
        .tower-hp-fill { height: 100%; background: var(--accent-green); transition: width 0.3s; border-radius: 4px; }
        .tower-hp-fill.enemy { background: var(--accent-red); }
        .game-card { background: var(--bg-input); border: 1px solid var(--border-color); border-radius: 8px; padding: 12px; margin-bottom: 8px; }

        /* Toast notifications */
        .toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column-reverse; gap: 8px; }
        .toast { padding: 12px 20px; border-radius: 8px; font-size: 0.9rem; font-weight: 500; color: white; animation: toastIn 0.3s ease, toastOut 0.3s ease 3.7s forwards; max-width: 400px; box-shadow: 0 4px 12px rgba(0,0,0,0.4); }
        .toast-success { background: var(--accent-green); }
        .toast-error { background: var(--accent-red); }
        .toast-info { background: var(--accent-blue); }
        @keyframes toastIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
        @keyframes toastOut { from { opacity: 1; } to { opacity: 0; } }

        /* Confirm dialog */
        .confirm-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 5000; align-items: center; justify-content: center; }
        .confirm-overlay.show { display: flex; }
        .confirm-box { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 24px; width: 400px; max-width: 90vw; text-align: center; }
        .confirm-box h3 { margin-bottom: 12px; }
        .confirm-box p { color: var(--text-secondary); margin-bottom: 20px; }
        .confirm-box .confirm-actions { display: flex; gap: 12px; justify-content: center; }

        /* Reauth modal */
        .reauth-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 6000; align-items: center; justify-content: center; }
        .reauth-overlay.show { display: flex; }

        /* Tab toolbar */
        .tab-toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
        .tab-toolbar .auto-refresh-toggle { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: var(--text-secondary); }
        .tab-toolbar .auto-refresh-toggle input { width: auto; margin: 0; }

        /* Bulk action bar */
        .bulk-bar { display: none; background: var(--bg-input); border: 1px solid var(--accent-blue); border-radius: 8px; padding: 10px 16px; margin-bottom: 12px; align-items: center; gap: 12px; }
        .bulk-bar.show { display: flex; }
        .bulk-bar .bulk-count { color: var(--accent-blue); font-weight: 600; }

        /* Shared utility classes for migrated inline styles */
        .text-center { text-align: center; }
        .w-full { width: 100%; }
        .w-120 { width: 120px; }
        .w-150 { width: 150px; }
        .w-80 { width: 80px; }
        .max-w-100vw { max-width: 100vw; }
        .max-h-600 { max-height: 600px; overflow-y: auto; }
        .display-none { display: none; }
        .mt-8 { margin-top: 8px; }
        .mt-12 { margin-top: 12px; }
        .mt-16 { margin-top: 16px; }
        .mt-20 { margin-top: 20px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mb-8 { margin-bottom: 8px; }
        .mb-12 { margin-bottom: 12px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .h3-section { margin: 20px 0 8px; }
        .h3-subsection { margin: 16px 0 8px; }
        .h3-block { margin: 24px 0 12px; }
        .text-muted-sm { font-size: 0.85rem; color: var(--text-secondary); }
        .flex-row-wrap { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
        .flex-row-wrap.mb-12 { margin-bottom: 12px; }
        .flex-wrap-only { display: flex; gap: 8px; flex-wrap: wrap; }
        .chart-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 20px; overflow-x: auto; }
        .chart-bars-hour { display: flex; align-items: flex-end; gap: 2px; height: 120px; min-width: 500px; }
        .chart-bars-dau { display: flex; align-items: flex-end; gap: 8px; height: 150px; min-width: 300px; }
        .chart-bars-nano { display: flex; align-items: flex-end; gap: 4px; height: 200px; min-width: 600px; }
        .mono-log-box { background: var(--bg-input); border: 1px solid var(--border-color); border-radius: 8px; font-family: 'IBM Plex Mono', monospace; font-size: 0.8rem; line-height: 1.6; overflow-y: auto; }
        .server-logs-box { padding: 12px; max-height: 400px; }
        .config-viewer-box { padding: 16px; max-height: 500px; }
        .broadcast-target-msg { flex: 1; min-width: 200px; min-height: 60px; }
        .grow-min-200 { flex: 1; min-width: 200px; }
        .grid-two { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 16px; }
        .grid-span-all { grid-column: 1 / -1; }
        .label-inline { display: flex; align-items: center; gap: 6px; color: var(--text-secondary); }
        .replay-modal-wide { width: 900px; max-width: 100vw; }
        .cs-compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
        .cs-tier-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
        .chart-col { display: flex; flex-direction: column; align-items: center; flex: 1; min-width: 16px; }
        .chart-col-wide { display: flex; flex-direction: column; align-items: center; flex: 1; min-width: 30px; }
        .chart-val-xs { font-size: 0.65rem; color: var(--text-secondary); margin-bottom: 2px; }
        .chart-val-sm { font-size: 0.75rem; color: var(--text-secondary); margin-bottom: 4px; }
        .chart-label-xs { font-size: 0.6rem; color: var(--text-secondary); margin-top: 2px; }
        .chart-label-sm { font-size: 0.65rem; color: var(--text-secondary); margin-top: 4px; }
        .chart-bar-blue-20 { width: 100%; max-width: 20px; background: var(--accent-blue); border-radius: 2px 2px 0 0; opacity: 0.8; }
        .chart-bar-blue-40 { width: 100%; max-width: 40px; background: var(--accent-blue); border-radius: 3px 3px 0 0; opacity: 0.8; }
        .chart-bar-nano-24 { width: 100%; max-width: 24px; background: var(--nano-color); border-radius: 3px 3px 0 0; opacity: 0.8; }
        .empty-muted { color: var(--text-secondary); }
        .empty-muted-pad8 { color: var(--text-secondary); padding: 8px; }
        .empty-muted-pad20 { color: var(--text-secondary); padding: 20px; }
        .empty-muted-pad40 { color: var(--text-secondary); padding: 40px; }
        .endpoints-muted { font-size: 0.8rem; color: var(--text-secondary); }
        .mono-cell { font-family: monospace; }
        .txhash-cell { font-size: 0.75rem; max-width: 200px; overflow: hidden; text-overflow: ellipsis; }
        .date-cell { font-size: 0.8rem; }
        .rv-meta { color: var(--text-secondary); margin-bottom: 12px; }
        .rv-canvas-wrap { display: flex; justify-content: center; margin-bottom: 16px; }
        .rv-canvas { border-radius: 8px; max-width: 100%; cursor: crosshair; }
        .rv-speed { width: 80px; margin: 0; }
        .rv-time { font-family: 'IBM Plex Mono', monospace; }
        .rv-maxtime { color: var(--text-secondary); }
        .rv-p1h { color: var(--accent-blue); }
        .rv-p2h { color: var(--accent-red); }
        .rv-deck { font-size: 0.85rem; color: var(--text-secondary); }
        .event-log-title { margin: 16px 0 8px; }
        .nano-date-label { font-size: 0.55rem; color: var(--text-secondary); margin-top: 2px; transform: rotate(-45deg); white-space: nowrap; }
        .gc-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 20px; margin-bottom: 16px; }
        .gc-title { color: var(--accent-gold); margin: 0 0 16px; font-size: 1.1rem; }
        .gc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-items: center; }
        .gc-label { color: var(--text-secondary); font-size: 0.9rem; }
        .gc-field-wrap { display: flex; gap: 6px; }
        .gc-input { flex: 1; padding: 6px 10px; background: var(--bg-input); border: 1px solid var(--border-color); border-radius: 8px; color: var(--text-primary); }
        .toggle-switch { display: inline-flex; align-items: center; cursor: pointer; }
        .toggle-switch input { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
        .toggle-pill {
            display: inline-flex;
            width: 40px;
            height: 22px;
            border-radius: 11px;
            background: var(--bg-input);
            border: 1px solid var(--border-color);
            transition: background-color 0.25s, border-color 0.25s;
            align-items: center;
            padding: 1px;
        }
        .toggle-thumb {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: #fff;
            transform: translateX(0);
            transition: transform 0.25s;
        }
        .toggle-switch input:checked + .toggle-pill {
            background: var(--accent-gold);
            border-color: rgba(255, 215, 0, 0.65);
        }
        .toggle-switch input:checked + .toggle-pill .toggle-thumb {
            transform: translateX(18px);
        }

        @media (max-width: 768px) {
            .admin-tabs { gap: 0; padding: 0 8px; }
            .admin-tab { padding: 10px 14px; font-size: 0.85rem; }
            .admin-content { padding: 12px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
            .stat-card { padding: 12px; }
            .stat-card .value { font-size: 1.3rem; }
            .data-table { font-size: 0.8rem; }
            .data-table th, .data-table td { padding: 8px 10px; }
            .search-bar { flex-direction: column; }
            .search-bar input { width: 100%; }
            .modal { max-width: 100vw; width: 100%; max-height: 100vh; border-radius: 0; position: fixed; inset: 0; }
            .modal-overlay.show { padding: 0; }
            .action-row { flex-direction: column; }
            .action-row input, .action-row select { width: 100% !important; }
            input, select, .btn { min-height: 44px; font-size: 16px; }
            .replay-stats { grid-template-columns: 1fr; }
            .replay-viewer { padding: 12px; }
            .admin-header { padding: 12px; flex-wrap: wrap; gap: 8px; }
            body { padding-bottom: env(safe-area-inset-bottom); }
            .toast-container { bottom: 12px; right: 12px; left: 12px; }
            .toast { max-width: 100%; }
        }
        @media (max-width: 480px) {
            .stats-grid { grid-template-columns: 1fr; }
            .admin-header h1 { font-size: 1rem; }
        }