:root{--bg-app:#0b0d13;--bg-sidebar-1:#10131c;--bg-sidebar-2:#141824;--bg-sidebar-3:#181d2c;--bg-editor:#0f121b;--bg-card:#1a2030b3;--bg-card-hover:#232b41e6;--bg-card-active:#2d3754f2;--bg-glass:#121622bf;--bg-input:#151a27;--bg-modal:#131722;--border-subtle:#ffffff12;--border-medium:#ffffff24;--border-focus:#8b5cf6;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--text-white:#fff;--primary:#8b5cf6;--primary-hover:#7c3aed;--primary-light:#8b5cf626;--primary-gradient:linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);--accent-cyan:#06b6d4;--accent-emerald:#10b981;--accent-amber:#f59e0b;--accent-rose:#f43f5e;--shadow-sm:0 2px 8px #00000040;--shadow-md:0 6px 20px #00000059;--shadow-lg:0 12px 36px #00000080;--shadow-glow:0 0 24px #8b5cf659;--font-body:"Plus Jakarta Sans", system-ui, -apple-system, sans-serif;--font-heading:"Outfit", "Plus Jakarta Sans", sans-serif;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:22px;--radius-full:9999px;--transition-fast:.15s ease;--transition-normal:.25s cubic-bezier(.16, 1, .3, 1)}[data-theme=light]{--bg-app:#f4f6fa;--bg-sidebar-1:#eaeef6;--bg-sidebar-2:#f1f4f9;--bg-sidebar-3:#f8fafd;--bg-editor:#fff;--bg-card:#ffffffd9;--bg-card-hover:#fff;--bg-card-active:#e2e8f0;--bg-glass:#ffffffd1;--bg-input:#fff;--bg-modal:#fff;--border-subtle:#00000014;--border-medium:#00000026;--border-focus:#8b5cf6;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--text-white:#fff;--primary-light:#8b5cf61a;--shadow-sm:0 2px 6px #0000000d;--shadow-md:0 8px 18px #00000014;--shadow-lg:0 16px 36px #0000001f;--shadow-glow:0 0 20px #8b5cf633}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;font-family:var(--font-body);background-color:var(--bg-app);color:var(--text-primary);-webkit-font-smoothing:antialiased;overflow:hidden}button,input,select,textarea{color:inherit;font-family:inherit}button{cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;justify-content:center;align-items:center;gap:6px;display:inline-flex}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#94a3b840;border-radius:99px}::-webkit-scrollbar-thumb:hover{background:#94a3b873}.app-container{background-color:var(--bg-app);flex-direction:column;width:100vw;height:100vh;display:flex;overflow:hidden}.app-navbar{background-color:var(--bg-sidebar-1);border-bottom:1px solid var(--border-subtle);-webkit-user-select:none;user-select:none;z-index:40;justify-content:space-between;align-items:center;height:52px;padding:0 16px;display:flex}.brand-section{align-items:center;gap:12px;display:flex}.brand-logo{font-family:var(--font-heading);letter-spacing:-.02em;background:var(--primary-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;align-items:center;gap:8px;font-size:1.15rem;font-weight:700;display:flex}.brand-badge{text-transform:uppercase;border-radius:var(--radius-full);background:var(--primary-light);color:var(--primary);letter-spacing:.05em;border:1px solid #8b5cf64d;padding:2px 7px;font-size:.65rem;font-weight:600}.nav-controls{align-items:center;gap:8px;display:flex}.cloud-sync-badge{border-radius:var(--radius-full);border:1px solid var(--border-subtle);color:var(--text-secondary);background:#ffffff0d;align-items:center;gap:6px;padding:5px 11px;font-size:.78rem;font-weight:500;display:inline-flex}.cloud-sync-badge.synced{color:#10b981;background:#10b9811a;border-color:#10b98140}.cloud-sync-badge.syncing{color:#3b82f6;background:#3b82f61a}.cloud-sync-badge.local{color:#f59e0b;background:#f59e0b1a}.pulse-dot{background-color:currentColor;border-radius:50%;width:7px;height:7px;animation:2s ease-in-out infinite pulseAnimation;box-shadow:0 0 8px}@keyframes pulseAnimation{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.85)}}.icon-btn{border-radius:var(--radius-md);width:34px;height:34px;color:var(--text-secondary);transition:all var(--transition-fast);border:1px solid #0000}.icon-btn:hover{background:var(--bg-card);color:var(--text-primary);border-color:var(--border-subtle)}.btn-primary{background:var(--primary-gradient);color:var(--text-white);border-radius:var(--radius-md);padding:6px 14px;font-size:.85rem;font-weight:600;box-shadow:0 4px 12px #8b5cf64d}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 16px #8b5cf673}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-medium);border-radius:var(--radius-md);padding:6px 14px;font-size:.85rem;font-weight:500}.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--primary)}.btn-danger{color:#f43f5e;border-radius:var(--radius-md);background:#f43f5e26;border:1px solid #f43f5e4d;padding:6px 14px;font-size:.85rem;font-weight:500}.btn-danger:hover{background:#f43f5e40}.workspace{flex:1;display:flex;position:relative;overflow:hidden}.col-notebooks{background-color:var(--bg-sidebar-1);border-right:1px solid var(--border-subtle);width:230px;min-width:230px;transition:all var(--transition-normal);flex-direction:column;display:flex}.col-sections{background-color:var(--bg-sidebar-2);border-right:1px solid var(--border-subtle);width:240px;min-width:240px;transition:all var(--transition-normal);flex-direction:column;display:flex}.col-pages{background-color:var(--bg-sidebar-3);border-right:1px solid var(--border-subtle);width:290px;min-width:290px;transition:all var(--transition-normal);flex-direction:column;display:flex}.col-editor{background-color:var(--bg-editor);flex-direction:column;flex:1;display:flex;position:relative;overflow:hidden}.col-header{border-bottom:1px solid var(--border-subtle);height:48px;font-family:var(--font-heading);color:var(--text-secondary);justify-content:space-between;align-items:center;padding:0 14px;font-size:.88rem;font-weight:600;display:flex}.col-header-title{color:var(--text-primary);align-items:center;gap:8px;display:flex}.col-header .add-btn{border-radius:var(--radius-sm);width:28px;height:28px;color:var(--text-secondary);border:1px solid var(--border-subtle)}.col-header 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#fff3;border-radius:4px}.color-highlighter-pill:hover{transform:scale(1.15)}.editor-scroll-area{flex:1;width:100%;max-width:960px;margin:0 auto;padding:32px 56px 80px;overflow-y:auto}.page-meta-header{flex-direction:column;gap:12px;margin-bottom:24px;display:flex}.page-title-input{width:100%;font-family:var(--font-heading);color:var(--text-primary);letter-spacing:-.02em;background:0 0;border:none;outline:none;padding:0;font-size:2.1rem;font-weight:700}.page-title-input::placeholder{color:var(--text-muted);opacity:.6}.page-meta-row{color:var(--text-secondary);border-bottom:1px solid var(--border-subtle);flex-wrap:wrap;align-items:center;gap:14px;padding-bottom:14px;font-size:.84rem;display:flex}.meta-item{align-items:center;gap:6px;display:flex}.meta-pill-select{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-full);color:var(--text-secondary);cursor:pointer;outline:none;padding:3px 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.todo-item{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:8px;display:flex}.content-editable-area .todo-item input[type=checkbox]{width:16px;height:16px;accent-color:var(--primary);cursor:pointer}.editor-footer-bar{background:var(--bg-sidebar-1);border-top:1px solid var(--border-subtle);height:32px;color:var(--text-muted);justify-content:space-between;align-items:center;padding:0 16px;font-size:.74rem;display:flex}.lock-screen-overlay{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);z-index:1000;background:#0b0d13f0;justify-content:center;align-items:center;animation:.3s fadeIn;display:flex;position:fixed;inset:0}.lock-card{background:var(--bg-modal);border:1px solid var(--border-medium);border-radius:var(--radius-xl);width:380px;box-shadow:var(--shadow-lg), var(--shadow-glow);text-align:center;flex-direction:column;align-items:center;padding:36px 32px;display:flex}.lock-icon-circle{background:var(--primary-light);border:2px solid var(--primary);width:64px;height:64px;color:var(--primary);border-radius:50%;justify-content:center;align-items:center;margin-bottom:20px;display:flex;box-shadow:0 0 20px #8b5cf64d}.lock-title{font-family:var(--font-heading);margin-bottom:6px;font-size:1.45rem;font-weight:700}.lock-subtitle{color:var(--text-secondary);margin-bottom:24px;font-size:.85rem}.lock-input-group{width:100%;margin-bottom:16px;position:relative}.lock-input{background:var(--bg-input);border:1px solid var(--border-medium);border-radius:var(--radius-md);width:100%;color:var(--text-primary);text-align:center;letter-spacing:.2em;transition:border-color var(--transition-fast);outline:none;padding:12px 16px;font-size:1.05rem}.lock-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #8b5cf633}.lock-error-msg{color:#f43f5e;min-height:18px;margin-bottom:14px;font-size:.82rem}.modal-backdrop{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:100;background:#000000b3;justify-content:center;align-items:center;padding:16px;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.modal-window{background:var(--bg-modal);border:1px solid var(--border-medium);border-radius:var(--radius-lg);width:100%;max-width:560px;max-height:90vh;box-shadow:var(--shadow-lg);flex-direction:column;display:flex;overflow:hidden}.modal-header{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:18px 24px;display:flex}.modal-title{font-family:var(--font-heading);align-items:center;gap:10px;font-size:1.15rem;font-weight:700;display:flex}.modal-body{flex-direction:column;gap:20px;padding:24px;display:flex;overflow-y:auto}.modal-footer{border-top:1px solid var(--border-subtle);background:#0000001a;justify-content:flex-end;align-items:center;gap:12px;padding:16px 24px;display:flex}.form-group{flex-direction:column;gap:6px;display:flex}.form-label{color:var(--text-secondary);font-size:.84rem;font-weight:600}.form-input{background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);width:100%;color:var(--text-primary);outline:none;padding:9px 13px;font-size:.9rem}.form-input:focus{border-color:var(--primary)}.info-callout{border-radius:var(--radius-md);gap:12px;padding:12px 16px;font-size:.83rem;line-height:1.5;display:flex}.info-callout.primary{color:var(--text-primary);background:#8b5cf61a;border:1px solid #8b5cf640}.info-callout.warning{color:#f59e0b;background:#f59e0b1a;border:1px solid #f59e0b40}.color-palette-picker{flex-wrap:wrap;gap:8px;display:flex}.color-option{cursor:pointer;width:28px;height:28px;transition:transform var(--transition-fast);border:2px solid #0000;border-radius:50%}.color-option:hover{transform:scale(1.15)}.color-option.selected{border-color:var(--text-white);box-shadow:0 0 10px}.encrypted-lock-placeholder{text-align:center;background:var(--bg-card);border:1px dashed var(--border-medium);border-radius:var(--radius-xl);flex-direction:column;justify-content:center;align-items:center;max-width:480px;margin:40px auto;padding:80px 24px;display:flex}@keyframes fadeIn{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}@media (width<=992px){.col-notebooks{z-index:30;box-shadow:var(--shadow-lg);position:absolute;top:52px;bottom:0;left:0}.col-notebooks.collapsed{transform:translate(-100%)}}@media (width<=768px){.col-sections{z-index:25;box-shadow:var(--shadow-lg);position:absolute;top:52px;bottom:0;left:0}.col-sections.collapsed{transform:translate(-100%)}.editor-scroll-area{padding:20px 20px 60px}.page-title-input{font-size:1.6rem}}