.loading-state,.error-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;height:100%;padding:2rem;display:flex}.loading-spinner{border:4px solid #d1d1d6;border-top-color:#007aff;border-radius:50%;width:40px;height:40px;margin-bottom:1rem;animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-state p{color:#ff3b30;margin-bottom:1rem}.error-state button{color:#fff;cursor:pointer;background:#007aff;border:none;border-radius:6px;padding:.5rem 1rem;font-size:14px}.error-state button:hover{background:#0056cc}@media (prefers-color-scheme:dark){.loading-spinner{border:4px solid #38383a;border-top-color:#007aff}.error-state p{color:#ff453a}}.notes-container{background:#f2f2f7;border-radius:8px;height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;display:flex;overflow:hidden}@media (prefers-color-scheme:dark){.notes-container{background:#000}}.unified-sidebar{background:#fff;border-right:1px solid #d1d1d6;flex-direction:column;width:320px;min-width:320px;display:flex;overflow:hidden}@media (prefers-color-scheme:dark){.unified-sidebar{background:#1c1c1e;border-right:1px solid #38383a}}.sidebar-header{background:#f9f9f9;border-bottom:1px solid #d1d1d6;justify-content:space-between;align-items:center;padding:16px 20px;display:flex}@media (prefers-color-scheme:dark){.sidebar-header{background:#2c2c2e;border-bottom:1px solid #38383a}}.sidebar-title{align-items:center;gap:8px;display:flex}.sidebar-title h2{color:#000;margin:0;font-size:22px;font-weight:700}@media (prefers-color-scheme:dark){.sidebar-title h2{color:#fff}}.header-actions{gap:8px;display:flex}.new-folder-btn{color:#fff;cursor:pointer;background:#34c759;border:none;border-radius:16px;justify-content:center;align-items:center;width:32px;height:32px;font-size:14px;transition:background-color .2s;display:flex}.new-folder-btn:hover{background:#28a745}@media (prefers-color-scheme:dark){.search-container{background:#2c2c2e;border-bottom:1px solid #38383a}}@media (prefers-color-scheme:dark){.search-input{color:#fff;background:#1c1c1e}}.items-list{flex:1;overflow-y:auto}.folder-item{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;padding:12px 20px;transition:background-color .2s,transform .2s;display:flex;position:relative}.folder-item:hover{background:#f9f9f9}.folder-item.dragging{opacity:.5;transform:scale(.95)}.folder-item.drag-over{background:#e3f2fd;border-left:4px solid #007aff}@media (prefers-color-scheme:dark){.folder-item:hover{background:#2c2c2e}.folder-item.drag-over{background:#1e3a5f;border-left:4px solid #64b5f6}}.folder-toggle{color:#8e8e93;cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;width:20px;height:20px;margin-right:8px;transition:transform .2s;display:flex}.chevron{transition:transform .2s}.chevron.expanded{transform:rotate(90deg)}.folder-icon{color:#fff;cursor:pointer;border-radius:4px;justify-content:center;align-items:center;width:24px;height:24px;margin-right:12px;transition:transform .2s;display:flex}.folder-icon:hover{transform:scale(1.05)}.folder-icon.editable{cursor:pointer}.folder-item.nested{border-left:2px solid var(--border);margin-left:24px;padding-left:12px}.folder-contents{margin-left:0}.folder-contents.nested,.note-item.nested{border-left:2px solid var(--border);margin-left:24px;padding-left:12px}.note-item.nested-deep{border-left:2px solid var(--border);opacity:.9;margin-left:48px;padding-left:12px}@keyframes pulse{0%{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(.8)}to{opacity:1;transform:scale(1)}}.folder-edit-container{flex:1;align-items:center;gap:8px;display:flex}.folder-color-picker{cursor:pointer;border:none;border-radius:4px;width:24px;height:24px;padding:0}.folder-color-picker::-webkit-color-swatch-wrapper{padding:0}.folder-color-picker::-webkit-color-swatch{border:none;border-radius:4px}.drop-zone-between{opacity:.3;background:var(--border);border-radius:1px;height:2px;margin:2px 20px;transition:all .2s}.drop-zone-between.drag-over{opacity:1;background:#007aff;height:4px;box-shadow:0 0 8px #007aff4d}@media (prefers-color-scheme:dark){.drop-zone-between.drag-over{background:#64b5f6;box-shadow:0 0 8px #64b5f64d}}.folder-content{flex:1;min-width:0}.folder-name{text-overflow:ellipsis;white-space:nowrap;color:#000;font-size:16px;font-weight:600;overflow:hidden}@media (prefers-color-scheme:dark){.folder-name{color:#fff}}.folder-name-input{width:100%;color:inherit;background:0 0;border:1px solid #007aff;border-radius:4px;outline:none;padding:2px 4px;font-size:16px;font-weight:600}.folder-count{color:#8e8e93;margin-top:2px;font-size:12px}.folder-actions{opacity:0;gap:4px;transition:opacity .2s;display:flex;position:relative}.folder-item:hover .folder-actions{opacity:1}.color-folder-btn,.edit-folder-btn,.delete-folder-btn{color:#8e8e93;cursor:pointer;background:0 0;border:none;border-radius:10px;justify-content:center;align-items:center;width:20px;height:20px;transition:all .2s;display:flex}.color-folder-btn:hover{color:#fff;background:#34c759}.edit-folder-btn:hover{color:#fff;background:#007aff}.delete-folder-btn:hover{color:#fff;background:#ff3b30}.color-picker-dropdown{z-index:1000;background:#fff;border:1px solid #d1d1d6;border-radius:8px;margin-top:4px;padding:8px;position:absolute;top:100%;right:0;box-shadow:0 4px 12px #00000026}@media (prefers-color-scheme:dark){.color-picker-dropdown{background:#2c2c2e;border:1px solid #38383a;box-shadow:0 4px 12px #0000004d}}.color-picker-grid{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.color-option{cursor:pointer;border:2px solid #0000;border-radius:12px;width:24px;height:24px;transition:all .2s}.color-option:hover{transform:scale(1.1)}.color-option.selected{border-color:#000}@media (prefers-color-scheme:dark){.color-option.selected{border-color:#fff}}.note-item.nested{border-bottom:1px solid #f2f2f2;padding-left:60px}@media (prefers-color-scheme:dark){.note-item{border-bottom:1px solid #2c2c2e}.note-item:hover{background:#2c2c2e}.note-item.selected{background:#007aff}.note-item.dragging{background:#3a3a3c}.note-item.nested{border-bottom:1px solid #2c2c2e}}.folder-notes{background:#f9f9f9}@media (prefers-color-scheme:dark){.folder-notes{background:#2c2c2e}.notes-container{background:#000}}.notes-sidebar{background:#fff;border-right:1px solid #d1d1d6;flex-direction:column;width:280px;min-width:280px;display:flex;overflow:hidden}@media (prefers-color-scheme:dark){.notes-sidebar{background:#1c1c1e;border-right:1px solid #38383a}}.notes-header{background:#f9f9f9;border-bottom:1px solid #d1d1d6;justify-content:space-between;align-items:center;padding:16px 20px;display:flex}@media (prefers-color-scheme:dark){.notes-header{background:#2c2c2e;border-bottom:1px solid #38383a}}.notes-title{align-items:center;gap:8px;display:flex}.notes-title h2{color:#000;margin:0;font-size:22px;font-weight:700}@media (prefers-color-scheme:dark){.notes-title h2{color:#fff}}.notes-count{color:#fff;text-align:center;background:#8e8e93;border-radius:12px;min-width:20px;padding:2px 8px;font-size:12px;font-weight:600}.new-note-btn{color:#fff;cursor:pointer;background:#007aff;border:none;border-radius:18px;justify-content:center;align-items:center;width:36px;height:36px;transition:background-color .2s;display:flex}.new-note-btn:hover{background:#0056cc}.new-note-btn:active{transform:scale(.95)}.search-container{background:#f9f9f9;border-bottom:1px solid #d1d1d6;padding:12px 20px;position:relative}@media (prefers-color-scheme:dark){.search-container{background:#2c2c2e;border-bottom:1px solid #38383a}}.search-icon{color:#8e8e93;pointer-events:none;position:absolute;top:50%;left:32px;transform:translateY(-50%)}.search-input{color:#000;box-sizing:border-box;background:#fff;border:none;border-radius:10px;outline:none;width:100%;padding:10px 12px 10px 36px;font-size:16px}.search-input::placeholder{color:#8e8e93}@media (prefers-color-scheme:dark){.search-input{color:#fff;background:#1c1c1e}}.notes-list{flex:1;overflow-y:auto}.empty-state{text-align:center;color:#8e8e93;padding:40px 20px;font-size:16px}.note-item{cursor:pointer;-webkit-user-select:none;user-select:none;border-bottom:1px solid #f2f2f2;align-items:center;padding:16px 20px;transition:background-color .2s,transform .2s;display:flex;position:relative}.note-item:hover{background:#f9f9f9}.note-item.selected{color:#fff;background:#007aff}.note-item.dragging{opacity:.5;background:#f0f0f0;border-radius:8px;margin:2px 8px;transform:scale(.95)}.note-item.drag-over{background:#e3f2fd;border-top:2px solid #007aff}.note-item.selected.drag-over{background:#1976d2;border-top:2px solid #fff}@media (prefers-color-scheme:dark){.note-item{border-bottom:1px solid #2c2c2e}.note-item:hover{background:#2c2c2e}.note-item.selected{background:#007aff}.note-item.dragging{background:#3a3a3c}.note-item.drag-over{background:#1e3a5f;border-top:2px solid #64b5f6}.note-item.selected.drag-over{background:#1976d2;border-top:2px solid #fff}}.drop-zone{text-align:center;color:#8e8e93;border:2px dashed #0000;border-radius:8px;margin:8px 16px;padding:20px;font-size:14px;transition:all .2s}.drop-zone.drag-over{color:#007aff;background:#e3f2fd;border-color:#007aff}@media (prefers-color-scheme:dark){.drop-zone.drag-over{color:#64b5f6;background:#1e3a5f}}.note-content{flex:1;min-width:0}.note-title{color:inherit;text-overflow:ellipsis;white-space:nowrap;margin-bottom:4px;font-size:16px;font-weight:600;overflow:hidden}.note-preview{color:#8e8e93;text-overflow:ellipsis;white-space:nowrap;min-height:18px;margin-bottom:4px;font-size:14px;overflow:hidden}.note-item.selected .note-preview{color:#fffc}.note-date{color:#8e8e93;font-size:12px}.note-item.selected .note-date{color:#fff9}.delete-note-btn{color:#8e8e93;cursor:pointer;opacity:0;background:0 0;border:none;border-radius:14px;justify-content:center;align-items:center;width:28px;height:28px;margin-left:12px;transition:all .2s;display:flex}.note-item:hover .delete-note-btn{opacity:1}.delete-note-btn:hover{color:#fff;background:#ff3b30}.notes-editor{background:#fff;flex-direction:column;flex:1;display:flex}@media (prefers-color-scheme:dark){.notes-editor{background:#1c1c1e}}.editor-header{background:#f9f9f9;border-bottom:1px solid #d1d1d6;justify-content:space-between;align-items:center;padding:16px 24px;display:flex}@media (prefers-color-scheme:dark){.editor-header{background:#2c2c2e;border-bottom:1px solid #38383a}}.editor-status{align-items:center;gap:8px;margin-left:16px;display:flex}.realtime-indicator{color:#fff;text-transform:uppercase;letter-spacing:.5px;background:#34c759;border-radius:12px;align-items:center;gap:6px;padding:4px 8px;font-size:11px;font-weight:600;display:flex}.realtime-dot{background:#fff;border-radius:50%;width:6px;height:6px;animation:2s infinite pulse}.note-title-input{color:#000;background:0 0;border:none;outline:none;flex:1;margin:0;padding:0;font-size:24px;font-weight:700}.note-title-input::placeholder{color:#8e8e93}@media (prefers-color-scheme:dark){.note-title-input{color:#fff}}.editor-content{flex:1;padding:24px;overflow-y:auto}.empty-editor{color:#8e8e93;text-align:center;flex-direction:column;justify-content:center;align-items:center;height:100%;display:flex}.empty-editor svg{opacity:.5;margin-bottom:16px}.empty-editor h3{margin:0 0 8px;font-size:20px;font-weight:600}.empty-editor p{margin:0;font-size:16px}@media (max-width:768px){.notes-container{position:relative}.sidebar-overlay{z-index:998;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#00000080;position:fixed;inset:0}.sidebar-container{z-index:999;width:85%;max-width:320px;height:100vh;transition:left .3s ease-in-out;position:fixed;top:0;left:-100%;box-shadow:2px 0 10px #0000001a}.sidebar-container.open{left:0}.mobile-header{background:#f9f9f9;border-bottom:1px solid #d1d1d6;justify-content:space-between;align-items:center;padding:12px 16px;display:flex}@media (prefers-color-scheme:dark){.mobile-header{background:#2c2c2e;border-bottom:1px solid #38383a}}.mobile-menu-btn,.mobile-new-note-btn{color:#007aff;cursor:pointer;background:0 0;border:none;border-radius:20px;justify-content:center;align-items:center;width:40px;height:40px;transition:background-color .2s;display:flex}.mobile-menu-btn:hover,.mobile-new-note-btn:hover{background:#007aff1a}.mobile-menu-btn:active,.mobile-new-note-btn:active{transform:scale(.95)}.mobile-header-title{color:#000;margin:0;font-size:18px;font-weight:600}@media (prefers-color-scheme:dark){.mobile-header-title{color:#fff}}.unified-sidebar{width:100%;min-width:unset;height:100vh}.notes-editor{flex-direction:column;width:100%;height:100vh;display:flex}.editor-header{padding:12px 16px}.note-title-input{font-size:20px}.editor-content{padding:16px}.milkdown{min-height:200px!important;font-size:16px!important}.milkdown .ProseMirror{touch-action:manipulation;-webkit-user-select:text;user-select:text;min-height:200px!important;padding:12px!important;font-size:16px!important;line-height:1.6!important}.milkdown .milkdown-toolbar .toolbar-item{width:44px!important;min-width:44px!important;height:44px!important;min-height:44px!important}.milkdown .ProseMirror img{border-radius:8px!important;max-width:100%!important;height:auto!important;margin:8px auto!important;display:block!important}.milkdown .milkdown-image-inline,.milkdown [data-node-type=image]{max-width:100%!important;overflow:hidden!important}.milkdown .milkdown-image-inline .empty-image-inline,.milkdown .milkdown-image-inline .link-importer{touch-action:manipulation!important;min-height:44px!important}}@media (min-width:769px){.mobile-header{display:none}.sidebar-container{width:320px;min-width:320px;height:100%;position:relative}.sidebar-overlay{display:none}}