:root{--primary: #111827;--bg: #f9fafb;--panel: #ffffff;--border: #e5e7eb;--text: #1f2937;--text-muted: #6b7280;--danger: #ef4444;--radius: 12px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,system-ui,sans-serif;background:var(--bg);color:var(--text)}.view{display:none;height:100vh;flex-direction:column}.view.active{display:flex}.login-card{margin:auto;background:var(--panel);padding:40px;border-radius:var(--radius);box-shadow:0 4px 6px -1px #0000001a;text-align:center}.btn{padding:10px 16px;border-radius:8px;font-weight:500;cursor:pointer;border:1px solid transparent;transition:all .2s}.btn-sm{padding:6px 12px;font-size:13px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{opacity:.9}.btn-cancel{background:#f3f4f6;color:var(--text);border-color:var(--border)}.btn-cancel:hover{background:#e5e7eb}.app-header{height:60px;background:var(--panel);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 20px}.brand{font-weight:700;font-size:18px;display:flex;align-items:center;gap:10px}.dashboard-content{max-width:800px;margin:0 auto;width:100%;padding:40px 20px}.doc-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}.doc-item{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px;display:flex;justify-content:space-between;align-items:center;cursor:pointer}.doc-item:hover{border-color:var(--primary)}.editor-container{flex:1;display:flex;padding:20px;max-width:900px;margin:0 auto;width:100%}textarea#editorTextarea{flex:1;width:100%;border:none;resize:none;outline:none;font-size:16px;line-height:1.6;background:transparent;font-family:inherit}.status-dot{width:10px;height:10px;border-radius:50%;background:#ccc}.status-dot.online{background:#10b981}.status-dot.syncing{background:#f59e0b}.status-dot.offline{background:#ef4444}.loading-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#fffc;display:none;align-items:center;justify-content:center;z-index:1000;font-weight:700}.header-actions{display:flex;gap:8px}.icon-btn{background:transparent;border:none;padding:8px;border-radius:8px;cursor:pointer;color:var(--text);transition:background .2s;display:flex;align-items:center;justify-content:center}.icon-btn:hover{background:#f5f5f5}.icon-btn svg{width:20px;height:20px;stroke-width:2px}.lock-banner{position:absolute;top:60px;left:0;right:0;background:linear-gradient(135deg,#fef3c7,#fde68a);border-bottom:2px solid #f59e0b;padding:14px 20px;display:none;align-items:center;justify-content:center;gap:12px;z-index:99;font-size:15px;font-weight:600;color:#92400e}.lock-banner.show{display:flex}.lock-banner svg{width:20px;height:20px;flex-shrink:0}.lock-banner .lock-icon{animation:shake .5s ease-in-out infinite}@keyframes shake{0%,to{transform:rotate(-5deg)}50%{transform:rotate(5deg)}}.paper{width:100%;max-width:900px;min-height:60vh;position:relative;display:flex;flex-direction:column}textarea#editorTextarea.locked{background:linear-gradient(180deg,#fef9c3,#fef3c7);color:#78716c;cursor:not-allowed;pointer-events:none}.lock-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#fef3c74d;display:none;align-items:center;justify-content:center;z-index:10}.lock-overlay.show{display:flex}.lock-overlay-content{background:#fff;padding:20px 30px;border-radius:16px;box-shadow:0 4px 20px #00000026;text-align:center}.lock-overlay-content svg{width:40px;height:40px;color:#f59e0b;margin-bottom:10px}.lock-overlay-content p{margin:0;font-size:14px;color:#92400e;font-weight:500}.table-editor{width:100%;overflow-x:auto;display:none}.table-editor.active{display:block}.table-editor table{width:100%;border-collapse:collapse;min-width:600px}.table-editor th,.table-editor td{border:1px solid var(--border);padding:0;min-width:100px;height:36px}.table-editor th{background:#f5f5f5;font-weight:600;font-size:13px;color:var(--text-muted)}.table-editor .row-header{width:50px;min-width:50px;background:#f5f5f5;text-align:center;font-size:12px;color:var(--text-muted)}.table-editor input{width:100%;height:100%;border:none;padding:8px;font-size:14px;font-family:inherit;outline:none;background:transparent}.table-editor input:focus{background:#fffef0;box-shadow:inset 0 0 0 2px var(--primary)}.table-editor input.has-formula{color:#3b82f6;font-weight:500}.table-editor input.formula-error{color:var(--danger);background:#fef2f2}.table-editor.locked input{background:#fef9c3;pointer-events:none}.table-toolbar{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap;align-items:center}.table-toolbar button{padding:6px 12px;border:1px solid var(--border);border-radius:6px;background:#fff;font-size:12px;cursor:pointer;display:flex;align-items:center;gap:4px;transition:all .15s}.table-toolbar button:hover{background:#f5f5f5;border-color:var(--primary)}.table-toolbar button svg{width:14px;height:14px}.formula-help{font-size:11px;color:var(--text-muted);margin-left:auto;cursor:pointer;padding:4px 8px;border-radius:4px;transition:background .15s}.formula-help:hover{background:#f0f0f0}.formula-bar{display:flex;align-items:center;gap:8px;padding:8px 12px;background:#f9f9f9;border:1px solid var(--border);border-radius:8px;margin-bottom:12px;font-size:13px}.formula-bar-cell{font-weight:600;color:var(--primary);min-width:40px}.formula-bar-content{flex:1;color:var(--text-muted);font-family:monospace;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.links-editor{display:none}.links-editor.active{display:block}.links-toolbar{display:flex;gap:8px;margin-bottom:16px}.link-list{display:flex;flex-direction:column;gap:8px}.link-item{display:flex;align-items:center;gap:12px;padding:12px 16px;background:#fafafa;border:1px solid var(--border);border-radius:10px}.link-item:hover{background:#f0f0f0;border-color:#ddd}.link-favicon{width:20px;height:20px;border-radius:4px;background:#ddd;flex-shrink:0}.link-info{flex:1;min-width:0}.link-title{font-size:14px;font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.link-url{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.link-actions{display:flex;gap:4px;opacity:0;transition:opacity .15s}.link-item:hover .link-actions{opacity:1}.link-actions button{padding:6px;border:none;background:transparent;border-radius:6px;cursor:pointer;color:var(--text-muted);transition:all .15s}.link-actions button:hover{background:#e5e5e5;color:var(--text)}.link-actions button.delete:hover{background:#fee2e2;color:var(--danger)}.link-actions button svg{width:16px;height:16px}.link-empty{text-align:center;padding:40px 20px;color:var(--text-muted)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;display:none;align-items:center;justify-content:center}.modal-overlay.open{display:flex}.modal-card{background:#fff;width:90%;max-width:500px;border-radius:20px;padding:24px;box-shadow:0 4px 12px #00000014;max-height:85vh;overflow-y:auto}.modal-title{font-size:18px;font-weight:700;margin-bottom:16px}.modal-input{width:100%;padding:12px;border:1px solid var(--border);border-radius:10px;font-size:16px;outline:none}.modal-input:focus{border-color:var(--primary)}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.tab-scroller{height:48px;background:var(--bg);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 16px;overflow-x:auto;white-space:nowrap;gap:8px;-webkit-overflow-scrolling:touch;scrollbar-width:none}.tab-scroller::-webkit-scrollbar{display:none}.tab-item{padding:6px 14px;border-radius:20px;font-size:14px;color:var(--text-muted);background:#f7f7f7;border:1px solid transparent;cursor:pointer;transition:all .2s ease;font-weight:500;display:flex;align-items:center;gap:6px;-webkit-user-select:none;user-select:none;position:relative;flex-shrink:0}.tab-item.active{background:var(--text);color:#fff;box-shadow:0 2px 6px #00000026}.tab-delete{width:16px;height:16px;border-radius:50%;background:#0000001a;display:flex;align-items:center;justify-content:center;margin-left:4px;opacity:0;transition:all .2s;flex-shrink:0}.tab-item:hover .tab-delete,.tab-item.active .tab-delete{opacity:1}.tab-delete:hover{background:var(--danger);color:#fff}.tab-item.active .tab-delete{background:#fff3}.tab-item.active .tab-delete:hover{background:var(--danger)}.tab-delete svg{width:10px;height:10px}