    <style>
        @import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

        * { margin: 0; padding: 0; box-sizing: border-box; }

        :root,
        [data-theme="dark"] {
            --bg: #0a0a0b;
            --surface: #121214;
            --card: #18181b;
            --card-hover: #1f1f23;
            --border: #232325;
            --border-hover: #333336;
            --text: #e8e8ea;
            --text-secondary: #8a8a92;
            --text-muted: #5c5c64;
            --accent: #a78bfa;
            --accent-hover: #8b6fe0;
            --green: #36d399;
            --red: #f87272;
            --radius: 12px;
        }

        [data-theme="light"] {
            --bg: #f5f5f7;
            --surface: #ffffff;
            --card: #ffffff;
            --card-hover: #f0f0f2;
            --border: #e2e2e6;
            --border-hover: #d0d0d6;
            --text: #1d1d1f;
            --text-secondary: #6b6b74;
            --text-muted: #a0a0aa;
            --accent: #7c5cfc;
            --accent-hover: #6248e0;
            --green: #22a67e;
            --red: #e05a5a;
            --radius: 12px;
        }

        body {
            font-family: 'Inter', -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
        }

        /* Header */
        header {
            padding: 24px 24px 12px;
            text-align: center;
            border-bottom: 1px solid var(--border);
            background: var(--surface);
        }

        /* Space switcher */
        .space-switcher {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            flex-wrap: wrap;
            padding: 10px 0 6px;
        }

        .space-tab {
            padding: 6px 16px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.15s ease;
            font-family: inherit;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            user-select: none;
        }

        .space-tab:hover {
            border-color: var(--accent);
            color: var(--text);
            background: var(--card-hover);
        }

        .space-tab.active {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }

        .space-tab .space-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .space-tab-add {
            padding: 6px 10px;
            border-radius: 8px;
            border: 1px dashed var(--border);
            background: transparent;
            color: var(--text-muted);
            font-size: 13px;
            cursor: pointer;
            transition: all 0.15s ease;
            font-family: inherit;
            line-height: 1;
        }

        .space-tab-add:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .space-info {
            padding: 0 24px 8px;
            text-align: center;
        }

        .space-description {
            color: var(--text-secondary);
            font-size: 12px;
            margin-top: 2px;
        }

        header h1 {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        .editable-title {
            cursor: pointer;
            transition: opacity 0.15s ease;
        }

        .editable-title:hover {
            opacity: 0.7;
        }

        .editable-title::after {
            content: '✎';
            font-size: 14px;
            margin-left: 8px;
            opacity: 0;
            transition: opacity 0.15s ease;
            color: var(--text-muted);
            font-weight: 400;
            cursor: pointer;
        }

        .editable-title:hover::after {
            opacity: 1;
        }

        header .sub {
            color: var(--text-secondary);
            font-size: 14px;
            margin-top: 6px;
        }

        /* ======== FAB (плавающая панель) ======== */
        .fab-wrapper {
            position: fixed;
            bottom: 28px;
            right: 28px;
            z-index: 90;
            display: flex;
            flex-direction: column-reverse;
            align-items: flex-end;
            gap: 10px;
        }

        .fab-toggle {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--accent);
            border: none;
            color: #fff;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(167, 139, 250, 0.3);
            transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            user-select: none;
        }

        .fab-toggle svg {
            width: 22px;
            height: 22px;
            transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        .fab-toggle:hover {
            transform: scale(1.08);
            box-shadow: 0 6px 24px rgba(167, 139, 250, 0.45);
        }

        .fab-toggle.open svg {
            transform: rotate(45deg);
        }

        .fab-toggle.open {
            background: var(--red);
            box-shadow: 0 4px 16px rgba(248, 114, 114, 0.3);
        }

        .fab-menu {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 8px;
            opacity: 0;
            transform: translateY(12px) scale(0.95);
            pointer-events: none;
            transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
            transform-origin: bottom right;
        }

        .fab-menu.open {
            opacity: 1;
            transform: translateY(0) scale(1);
            pointer-events: auto;
        }

        .fab-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 16px 8px 12px;
            border-radius: 10px;
            background: var(--card);
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: all 0.15s ease;
            user-select: none;
            white-space: nowrap;
            font-family: inherit;
        }

        .fab-item:hover {
            border-color: var(--accent);
            background: var(--card-hover);
            transform: translateX(-4px);
        }

        .fab-item:active {
            transform: translateX(-2px) scale(0.97);
        }

        .fab-item svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--accent);
        }

        .fab-item .label {
            line-height: 1;
        }

        /* ======== BUTTONS (модалки) ======== */
        .btn {
            padding: 8px 18px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--card);
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.15s ease;
            font-family: inherit;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            user-select: none;
            line-height: 1;
        }

        .btn:hover {
            border-color: var(--border-hover);
            background: var(--card-hover);
            color: var(--text);
        }

        .btn:active {
            transform: scale(0.97);
        }

        .btn-primary {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
        }

        .btn-cancel {
            background: transparent;
            border-color: transparent;
        }

        .btn-cancel:hover {
            background: rgba(255, 255, 255, 0.04);
            border-color: transparent;
            color: var(--text);
        }

        .btn-danger {
            background: transparent;
            border-color: transparent;
            color: var(--red);
        }

        .btn-danger:hover {
            background: rgba(248, 114, 114, 0.08);
            border-color: rgba(248, 114, 114, 0.15);
            color: var(--red);
        }

        .btn-sm {
            padding: 4px 10px;
            font-size: 11px;
            border-radius: 8px;
        }

        .modal .modal-actions {
            display: flex;
            gap: 6px;
            justify-content: flex-end;
            margin-top: 20px;
        }

        /* Container */
        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 32px 20px;
        }
        .container.flexible {
            max-width: 100%;
            padding: 32px 40px;
        }

        /* Grid of categories */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(var(--columns, 3), 1fr);
            gap: 20px;
        }

        .categories-grid.flexible {
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        }

        /* Category card base */
        .category {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            cursor: default;
        }

        .category:hover {
            border-color: var(--border-hover);
        }

        /* ======== SORTABLE GHOST ======== */
        .category.dragging {
            opacity: 0.3;
        }

        .sortable-ghost {
            opacity: 0.4;
            background: rgba(167, 139, 250, 0.08) !important;
            border: 2px dashed var(--accent) !important;
            box-shadow: 0 0 20px rgba(167, 139, 250, 0.15);
        }

        .sortable-ghost * {
            opacity: 0.6;
        }

        .sortable-chosen {
            border-color: var(--accent) !important;
        }

        /* Links list needs min height for empty drop zone */
        .links-list {
            min-height: 32px;
        }

        /* Drag handle for category header */
        .drag-handle-cat {
            cursor: grab;
            color: var(--text-muted);
            font-size: 18px;
            line-height: 1;
            padding: 0 4px;
            transition: color 0.15s ease;
            user-select: none;
            letter-spacing: -2px;
        }

        .drag-handle-cat:active {
            cursor: grabbing;
        }

        .category:hover .drag-handle-cat {
            color: var(--text-secondary);
        }

        .category-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 14px;
        }

        .category-header-left {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            min-width: 0;
        }

        .category-title {
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            color: var(--accent);
        }

        .category-actions {
            display: flex;
            gap: 4px;
            opacity: 0;
            transition: opacity 0.15s ease;
        }

        .category:hover .category-actions {
            opacity: 1;
        }

        .category-actions .btn {
            padding: 3px 8px;
            font-size: 11px;
            background: transparent;
        }

        /* Favicon */
        .link-item .favicon {
            width: 16px;
            height: 16px;
            border-radius: 3px;
            flex-shrink: 0;
            margin-right: 8px;
        }

        .link-item .favicon-fallback {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            margin-right: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            background: var(--card);
            border-radius: 3px;
            color: var(--text-muted);
        }
        
        .link-item {
            user-select: none;
        }
        .link-item .link-content {
            display: flex;
            align-items: center;
            flex: 1;
            min-width: 0;
            padding: 6px 8px;
            gap: 8px;
            color: var(--text);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.15s ease;
            cursor: pointer;
            user-select: none;
        }

        .link-item .link-content:hover {
            color: var(--accent);
        }

        /* Link items */
        .link-item {
            display: flex;
            justify-content: space-between;
            align-items: stretch;
            border-radius: 8px;
            transition: background 0.1s ease;
        }

        .link-item:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .link-item .favicon {
            width: 16px;
            height: 16px;
            border-radius: 3px;
            flex-shrink: 0;
        }

        .link-item .favicon-fallback {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            font-weight: 700;
            background: rgba(167, 139, 250, 0.15);
            border-radius: 3px;
            color: var(--accent);
        }

        .link-item .link-actions {
            display: flex;
            gap: 2px;
            opacity: 0;
            transition: opacity 0.15s ease;
            padding: 6px 8px 6px 0;
            align-items: center;
        }

        .link-item:hover .link-actions {
            opacity: 1;
        }

        .link-item .link-actions .btn {
            padding: 2px 6px;
            font-size: 10px;
            background: transparent;
            border: none;
            color: var(--text-muted);
        }

        .link-item .link-actions .btn:hover {
            color: var(--red);
        }

        .link-item .link-actions .btn-edit-link:hover {
            color: var(--accent);
        }

        .empty-state {
            color: var(--text-muted);
            font-size: 13px;
            padding: 20px;
            text-align: center;
            border: 1px dashed var(--border);
            border-radius: 8px;
        }

        .empty-state-all {
            grid-column: 1 / -1;
            text-align: center;
            padding: 100px 20px 80px;
            color: var(--text-muted);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }

        .empty-state-all .empty-icon {
            width: 80px;
            height: 80px;
            color: var(--text-muted);
            opacity: 0.4;
            margin-bottom: 4px;
        }

        .empty-state-all h2 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-secondary);
            margin: 0;
        }

        .empty-state-all p {
            font-size: 14px;
            margin: 0;
            color: var(--text-muted);
        }

        .empty-state-all .btn-empty-add {
            margin-top: 8px;
            padding: 14px 36px;
            border-radius: 12px;
            border: none;
            background: var(--accent);
            color: #fff;
            font-family: inherit;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 20px rgba(167, 139, 250, 0.25);
        }

        .empty-state-all .btn-empty-add:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 28px rgba(167, 139, 250, 0.35);
        }

        .empty-state-all .btn-empty-add:active {
            transform: translateY(0) scale(0.98);
        }

        .empty-state-all .btn-empty-add svg {
            width: 20px;
            height: 20px;
        }

        /* Modal */
        .modal-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(4px);
            z-index: 100;
            justify-content: center;
            align-items: center;
        }

        .modal-overlay.active {
            display: flex;
        }

        .modal {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 28px;
            width: 90%;
            max-width: 440px;
            max-height: 90vh;
            overflow-y: auto;
        }

        .modal h2 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .modal .form-group {
            margin-bottom: 16px;
        }

        .modal .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }

        .modal .form-group input,
        .modal .form-group select {
            width: 100%;
            padding: 10px 14px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text);
            font-size: 14px;
            font-family: inherit;
            outline: none;
            transition: border-color 0.15s ease;
        }

        .modal .form-group select {
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a8a92' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
        }

        .modal .form-group input:focus,
        .modal .form-group select:focus {
            border-color: var(--accent);
        }

        /* URL input wrap with fetch button */
        .url-input-wrap {
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .url-input-wrap input {
            flex: 1;
            min-width: 0;
        }

        .btn-url-fetch {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.15s ease;
            padding: 0;
        }

        .btn-url-fetch:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--card-hover);
        }

        .btn-url-fetch:active {
            transform: scale(0.95);
        }

        .url-fetch-spinner {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
        }

        /* Color presets */
        .color-presets {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .color-preset {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            transition: all 0.15s ease;
            padding: 0;
            outline: none;
        }

        .color-preset:hover {
            transform: scale(1.15);
        }

        .color-preset.selected {
            box-shadow: 0 0 0 2px var(--accent), 0 0 12px rgba(167, 139, 250, 0.4);
            transform: scale(1.1);
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        .spin {
            animation: spin 1s linear infinite;
        }

        /* Toast */
        .toast {
            position: fixed;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%) translateY(80px);
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 12px 24px;
            font-size: 14px;
            color: var(--text);
            opacity: 0;
            transition: all 0.3s ease;
            z-index: 200;
            pointer-events: none;
        }

        .toast.show {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }

        /* Empty category placeholder */
        .add-first-link {
            display: block;
            width: 100%;
            padding: 12px;
            text-align: center;
            border: 1px dashed var(--border);
            border-radius: 8px;
            color: var(--text-muted);
            font-size: 13px;
            cursor: pointer;
            background: transparent;
            font-family: inherit;
            transition: all 0.15s ease;
        }

        .add-first-link:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        /* Footer */
        footer {
            text-align: center;
            padding: 24px;
            color: var(--text-muted);
            font-size: 13px;
            border-top: 1px solid var(--border);
            margin-top: 40px;
        }

        footer a {
            color: var(--accent);
            text-decoration: none;
        }

        footer a:hover {
            text-decoration: underline;
        }

        footer .heart {
            display: inline-block;
            vertical-align: middle;
            margin: 0 2px;
            color: var(--red);
            fill: transparent;
            transition: transform 0.15s ease, fill 0.3s ease;
        }

        footer:hover .heart {
            animation: heartBeat 0.6s ease-in-out infinite;
            fill: var(--red);
        }

        @keyframes heartBeat {
            0%, 100% { transform: scale(1); }
            15% { transform: scale(1.35); }
            30% { transform: scale(1); }
            45% { transform: scale(1.25); }
            60% { transform: scale(1); }
        }

        /* Responsive */
        @media (max-width: 600px) {
            header { padding: 24px 16px 20px; }
            header h1 { font-size: 22px; }
            .categories-grid { grid-template-columns: 1fr; }
            .categories-grid.flexible { grid-template-columns: 1fr; }
            .modal { padding: 20px; }
        }

        /* Touch devices — кнопки всегда видны и крупнее */
        @media (hover: none) {
            .category-actions,
            .link-item .link-actions {
                opacity: 1;
            }
            .link-item .link-actions .btn,
            .category-actions .btn {
                padding: 8px 12px;
            }
            .link-item .link-actions .btn svg,
            .category-actions .btn svg {
                width: 16px;
                height: 16px;
            }
        }

        /* ===== CONFLICT MODAL ===== */
        .conflict-message {
            color: var(--text-secondary);
            margin-bottom: 16px;
            font-size: 14px;
        }
        .conflict-timestamps {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-bottom: 16px;
        }
        .ts-block {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 12px;
        }
        .ts-block.ts-server {
            border-color: var(--accent);
        }
        .ts-label {
            font-size: 12px;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 4px;
        }
        .ts-value {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .ts-stat {
            font-size: 12px;
            color: var(--green);
        }
        .conflict-diff-wrap {
            max-height: 280px;
            overflow-y: auto;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 12px;
            margin-bottom: 16px;
        }
        .conflict-empty {
            color: var(--text-muted);
            text-align: center;
            padding: 24px;
            font-size: 13px;
        }
        .conflict-diff { font-size: 13px; }
        .diff-space { margin-bottom: 12px; }
        .diff-space-name {
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .diff-status {
            font-size: 10px;
            text-transform: uppercase;
            padding: 2px 6px;
            border-radius: 4px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .diff-only_local { background: rgba(167, 139, 250, 0.15); color: var(--accent); }
        .diff-only_server { background: rgba(54, 211, 153, 0.15); color: var(--green); }
        .diff-both, .diff-modified { background: rgba(248, 114, 114, 0.15); color: var(--red); }
        .diff-cat { margin-left: 12px; margin-bottom: 8px; }
        .diff-cat-name {
            color: var(--text-secondary);
            font-weight: 500;
            margin-bottom: 4px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .diff-side {
            margin: 4px 0 4px 12px;
            padding: 6px 8px;
            border-radius: 4px;
            font-size: 12px;
        }
        .diff-local {
            background: rgba(167, 139, 250, 0.08);
            border-left: 2px solid var(--accent);
        }
        .diff-remote {
            background: rgba(54, 211, 153, 0.08);
            border-left: 2px solid var(--green);
        }
        .diff-label {
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
            font-size: 11px;
        }
        .diff-url {
            color: var(--text-secondary);
            font-family: monospace;
            font-size: 11px;
            word-break: break-all;
        }
        .conflict-actions {
            display: flex;
            gap: 8px;
            justify-content: flex-end;
            flex-wrap: wrap;
        }
        .conflict-actions .btn { flex: 1; min-width: 140px; }
        .conflict-loading {
            text-align: center;
            padding: 32px;
            color: var(--text-secondary);
        }
        .conflict-error {
            color: var(--red);
            padding: 16px;
            text-align: center;
        }
    </style>
