*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #2ecc71;--primary-dark: #27ae60;--secondary-color: #3498db;--danger-color: #e74c3c;--text-primary: #2c3e50;--text-secondary: #7f8c8d;--background: #ffffff;--background-secondary: #f8f9fa;--border-color: #e1e8ed;--shadow: 0 2px 8px rgba(0, 0, 0, .1);--shadow-hover: 0 4px 12px rgba(0, 0, 0, .15);--border-radius: 8px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--background-secondary);color:var(--text-primary);line-height:1.6}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.container{max-width:1400px;margin:0 auto;padding:20px}.btn{padding:10px 20px;border:none;border-radius:var(--border-radius);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;gap:8px}.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}.btn:active{transform:translateY(0)}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-dark)}.btn-secondary{background-color:var(--secondary-color);color:#fff}.btn-danger{background-color:var(--danger-color);color:#fff}.btn-outline{background-color:transparent;border:1px solid var(--border-color);color:var(--text-primary)}.btn-outline:hover{background-color:var(--background-secondary)}input,textarea,select{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:14px;font-family:inherit;transition:border-color .2s ease}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary-color)}textarea{resize:vertical;min-height:100px}.card{background:var(--background);border-radius:var(--border-radius);padding:20px;box-shadow:var(--shadow);transition:box-shadow .2s ease}.card:hover{box-shadow:var(--shadow-hover)}.spinner{border:3px solid var(--border-color);border-top:3px solid var(--primary-color);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-container{display:flex;justify-content:center;align-items:center;min-height:200px}.error-message{background-color:#fee;color:var(--danger-color);padding:12px 16px;border-radius:var(--border-radius);border-left:4px solid var(--danger-color);margin-bottom:20px}.success-message{background-color:#e3f2fd;color:var(--secondary-color);padding:12px 16px;border-radius:var(--border-radius);border-left:4px solid var(--secondary-color);margin-bottom:20px}.text-center{text-align:center}.text-muted{color:var(--text-secondary)}.mb-1{margin-bottom:10px}.mb-2{margin-bottom:20px}.mb-3{margin-bottom:30px}.mt-1{margin-top:10px}.mt-2{margin-top:20px}.mt-3{margin-top:30px}.flex{display:flex}.flex-column{flex-direction:column}.align-center{align-items:center}.justify-between{justify-content:space-between}.gap-1{gap:10px}.gap-2{gap:20px}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:20px}.login-card{max-width:400px;width:100%;text-align:center}.login-header h1{font-size:48px;margin-bottom:10px;color:var(--primary-color)}.login-header p{margin-bottom:30px;font-size:16px}.btn-google{width:100%;justify-content:center;padding:12px 24px;font-size:16px;margin-bottom:20px}.login-footer{font-size:13px}.sidebar{width:280px;background:var(--background);border-right:1px solid var(--border-color);display:flex;flex-direction:column;height:100vh;position:sticky;top:0}.sidebar-header{padding:20px;border-bottom:1px solid var(--border-color)}.sidebar-header h2{font-size:24px;color:var(--primary-color);margin:0}.sidebar-content{flex:1;overflow-y:auto;padding:20px 0}.sidebar-section{margin-bottom:30px;padding:0 20px}.sidebar-section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.sidebar-section-header h3{font-size:14px;font-weight:600;text-transform:uppercase;color:var(--text-secondary);margin:0}.btn-icon{background:none;border:none;cursor:pointer;font-size:16px;padding:4px;opacity:.6;transition:opacity .2s}.btn-icon:hover{opacity:1}.sidebar-item{width:100%;padding:10px 12px;background:transparent;border:none;border-radius:var(--border-radius);text-align:left;cursor:pointer;transition:background-color .2s;font-size:14px;color:var(--text-primary);display:block;margin-bottom:4px}.sidebar-item:hover{background-color:var(--background-secondary)}.sidebar-item.active{background-color:var(--primary-color);color:#fff}.notebook-item{display:flex;align-items:center;justify-content:space-between;padding:0}.notebook-item button:first-child{flex:1;padding:10px 12px;background:transparent;border:none;text-align:left;cursor:pointer;color:inherit;font-size:14px}.notebook-item.active button:first-child{color:#fff}.btn-delete{background:none;border:none;cursor:pointer;padding:8px;font-size:14px;opacity:0;transition:opacity .2s}.notebook-item:hover .btn-delete{opacity:.6}.btn-delete:hover{opacity:1!important}.notebook-form{background:var(--background-secondary);padding:12px;border-radius:var(--border-radius);margin-bottom:10px}.notebook-form input{margin-bottom:10px}.form-actions{display:flex;gap:8px}.btn-sm{padding:6px 12px;font-size:13px}.notebooks-list{max-height:400px;overflow-y:auto}.sidebar-footer{padding:20px;border-top:1px solid var(--border-color)}.user-info{display:flex;align-items:center;gap:12px;margin-bottom:12px}.user-avatar{width:40px;height:40px;border-radius:50%;object-fit:cover}.user-details{flex:1;min-width:0}.user-name{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-email{font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-item.drag-over,.notebook-item.drag-over{background-color:var(--primary-color);opacity:.7;border:2px dashed white;transform:scale(1.02);transition:all .2s ease}.notebook-item.drag-over button:first-child{color:#fff}.notes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.note-card{cursor:pointer;transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column;min-height:200px;position:relative;overflow:hidden}.note-card:hover{transform:translateY(-2px)}.note-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px;gap:8px}.drag-handle{background:none;border:none;cursor:grab;font-size:16px;padding:4px;opacity:0;transition:opacity .2s;color:var(--text-secondary);line-height:1}.note-card:hover .drag-handle{opacity:.6}.drag-handle:hover{opacity:1!important}.drag-handle:active{cursor:grabbing}.note-title{font-size:18px;font-weight:600;margin:0;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn-delete-note{background:none;border:none;cursor:pointer;font-size:16px;padding:4px;opacity:0;transition:opacity .2s}.note-card:hover .btn-delete-note{opacity:.6}.btn-delete-note:hover{opacity:1!important}.note-preview{color:var(--text-secondary);font-size:14px;line-height:1.5;margin-bottom:12px;flex:1}.note-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}.note-tags{display:flex;gap:6px;flex-wrap:wrap}.tag{background-color:var(--background-secondary);color:var(--text-secondary);padding:4px 10px;border-radius:12px;font-size:12px;font-weight:500}.note-attachments-count{font-size:13px;color:var(--text-secondary)}.note-footer{display:flex;justify-content:space-between;align-items:center;padding-top:12px;border-top:1px solid var(--border-color)}.note-date{font-size:13px}.notes-empty{text-align:center;padding:60px 20px}.notes-empty p:first-child{font-size:48px;margin-bottom:10px}.notes-empty p:last-child{font-size:16px}.note-card.dragging{opacity:.5;cursor:grabbing}.note-card{touch-action:none}.note-color-indicator{position:absolute;left:0;top:0;bottom:0;width:4px;z-index:1}.notes-list-view{display:flex;flex-direction:column;gap:8px}.note-list-item{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--background);border:1px solid var(--border-color);border-radius:var(--border-radius);cursor:pointer;transition:all .2s;touch-action:none;position:relative;overflow:hidden}.note-list-item:hover{border-color:var(--primary-color);box-shadow:0 2px 8px #0000000d}.note-list-content{flex:1;display:flex;align-items:center;gap:24px;min-width:0}.note-list-title-section{flex:1;min-width:0}.note-list-title{font-size:16px;font-weight:600;margin:0 0 4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.note-list-preview{font-size:13px;color:var(--text-secondary);margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.note-list-meta{display:flex;align-items:center;gap:12px;flex-shrink:0}.note-list-tags{display:flex;gap:4px;align-items:center}.tag-small{background-color:var(--background-secondary);color:var(--text-secondary);padding:3px 8px;border-radius:10px;font-size:11px;font-weight:500;white-space:nowrap}.note-list-attachments{font-size:12px;color:var(--text-secondary);white-space:nowrap}.note-list-date{font-size:13px;white-space:nowrap}.btn-delete-list{background:none;border:none;cursor:pointer;font-size:16px;padding:8px;opacity:0;transition:opacity .2s;flex-shrink:0}.note-list-item:hover .btn-delete-list{opacity:.6}.btn-delete-list:hover{opacity:1!important}.note-list-item.dragging{opacity:.5;cursor:grabbing}@media(max-width:768px){.note-list-content{flex-direction:column;align-items:flex-start;gap:8px}.note-list-meta{flex-wrap:wrap}}.note-list-color-indicator{position:absolute;left:0;top:0;bottom:0;width:4px;z-index:1}.drag-handle-list{background:none;border:none;cursor:grab;font-size:16px;padding:8px;opacity:0;transition:opacity .2s;color:var(--text-secondary);line-height:1;flex-shrink:0}.note-list-item:hover .drag-handle-list{opacity:.6}.drag-handle-list:hover{opacity:1!important}.drag-handle-list:active{cursor:grabbing}.view-controls{display:flex;align-items:center;gap:12px}.view-mode-toggle{display:flex;gap:4px;background-color:var(--background-secondary);border-radius:var(--border-radius);padding:4px}.view-btn{background:transparent;border:none;cursor:pointer;font-size:18px;padding:6px 12px;border-radius:4px;transition:all .2s;color:var(--text-secondary)}.view-btn:hover{background-color:#0000000d}.view-btn.active{background-color:var(--primary-color);color:#fff}.sort-select{padding:8px 12px;border:1px solid var(--border-color);border-radius:var(--border-radius);background-color:var(--background);color:var(--text-primary);font-size:14px;cursor:pointer;outline:none;transition:border-color .2s}.sort-select:hover{border-color:var(--primary-color)}.sort-select:focus{border-color:var(--primary-color)}.version-indicator{position:fixed;top:12px;left:300px;font-size:11px;color:var(--text-secondary);opacity:.6;font-weight:500;z-index:1000;padding:4px 8px;background:var(--background);border-radius:4px;border:1px solid var(--border-color);transition:opacity .2s;cursor:default;-webkit-user-select:none;user-select:none}.version-indicator:hover{opacity:1}@media(max-width:768px){.version-indicator{left:12px}}.dashboard{display:flex;min-height:100vh}.main-content{flex:1;padding:30px;overflow-y:auto}.dashboard-header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:30px}.search-bar{flex:1;max-width:500px}.search-bar input{width:100%;padding:12px 16px;font-size:16px;border-radius:24px}.ql-container{box-sizing:border-box;font-family:Helvetica,Arial,sans-serif;font-size:13px;height:100%;margin:0;position:relative}.ql-container.ql-disabled .ql-tooltip{visibility:hidden}.ql-container.ql-disabled .ql-editor ul[data-checked]>li:before{pointer-events:none}.ql-clipboard{left:-100000px;height:1px;overflow-y:hidden;position:absolute;top:50%}.ql-clipboard p{margin:0;padding:0}.ql-editor{box-sizing:border-box;line-height:1.42;height:100%;outline:none;overflow-y:auto;padding:12px 15px;tab-size:4;-moz-tab-size:4;text-align:left;white-space:pre-wrap;word-wrap:break-word}.ql-editor>*{cursor:text}.ql-editor p,.ql-editor ol,.ql-editor ul,.ql-editor pre,.ql-editor blockquote,.ql-editor h1,.ql-editor h2,.ql-editor h3,.ql-editor h4,.ql-editor h5,.ql-editor h6{margin:0;padding:0;counter-reset:list-1 list-2 list-3 list-4 list-5 list-6 list-7 list-8 list-9}.ql-editor ol,.ql-editor ul{padding-left:1.5em}.ql-editor ol>li,.ql-editor ul>li{list-style-type:none}.ql-editor ul>li:before{content:"•"}.ql-editor ul[data-checked=true],.ql-editor ul[data-checked=false]{pointer-events:none}.ql-editor ul[data-checked=true]>li *,.ql-editor ul[data-checked=false]>li *{pointer-events:all}.ql-editor ul[data-checked=true]>li:before,.ql-editor ul[data-checked=false]>li:before{color:#777;cursor:pointer;pointer-events:all}.ql-editor ul[data-checked=true]>li:before{content:"☑"}.ql-editor ul[data-checked=false]>li:before{content:"☐"}.ql-editor li:before{display:inline-block;white-space:nowrap;width:1.2em}.ql-editor li:not(.ql-direction-rtl):before{margin-left:-1.5em;margin-right:.3em;text-align:right}.ql-editor li.ql-direction-rtl:before{margin-left:.3em;margin-right:-1.5em}.ql-editor ol li:not(.ql-direction-rtl),.ql-editor ul li:not(.ql-direction-rtl){padding-left:1.5em}.ql-editor ol li.ql-direction-rtl,.ql-editor ul li.ql-direction-rtl{padding-right:1.5em}.ql-editor ol li{counter-reset:list-1 list-2 list-3 list-4 list-5 list-6 list-7 list-8 list-9;counter-increment:list-0}.ql-editor ol li:before{content:counter(list-0,decimal) ". "}.ql-editor ol li.ql-indent-1{counter-increment:list-1}.ql-editor ol li.ql-indent-1:before{content:counter(list-1,lower-alpha) ". "}.ql-editor ol li.ql-indent-1{counter-reset:list-2 list-3 list-4 list-5 list-6 list-7 list-8 list-9}.ql-editor ol li.ql-indent-2{counter-increment:list-2}.ql-editor ol li.ql-indent-2:before{content:counter(list-2,lower-roman) ". "}.ql-editor ol li.ql-indent-2{counter-reset:list-3 list-4 list-5 list-6 list-7 list-8 list-9}.ql-editor ol li.ql-indent-3{counter-increment:list-3}.ql-editor ol li.ql-indent-3:before{content:counter(list-3,decimal) ". "}.ql-editor ol li.ql-indent-3{counter-reset:list-4 list-5 list-6 list-7 list-8 list-9}.ql-editor ol li.ql-indent-4{counter-increment:list-4}.ql-editor ol li.ql-indent-4:before{content:counter(list-4,lower-alpha) ". "}.ql-editor ol li.ql-indent-4{counter-reset:list-5 list-6 list-7 list-8 list-9}.ql-editor ol li.ql-indent-5{counter-increment:list-5}.ql-editor ol li.ql-indent-5:before{content:counter(list-5,lower-roman) ". "}.ql-editor ol li.ql-indent-5{counter-reset:list-6 list-7 list-8 list-9}.ql-editor ol li.ql-indent-6{counter-increment:list-6}.ql-editor ol li.ql-indent-6:before{content:counter(list-6,decimal) ". "}.ql-editor ol li.ql-indent-6{counter-reset:list-7 list-8 list-9}.ql-editor ol li.ql-indent-7{counter-increment:list-7}.ql-editor ol li.ql-indent-7:before{content:counter(list-7,lower-alpha) ". "}.ql-editor ol li.ql-indent-7{counter-reset:list-8 list-9}.ql-editor ol li.ql-indent-8{counter-increment:list-8}.ql-editor ol li.ql-indent-8:before{content:counter(list-8,lower-roman) ". "}.ql-editor ol li.ql-indent-8{counter-reset:list-9}.ql-editor ol li.ql-indent-9{counter-increment:list-9}.ql-editor ol li.ql-indent-9:before{content:counter(list-9,decimal) ". "}.ql-editor .ql-indent-1:not(.ql-direction-rtl){padding-left:3em}.ql-editor li.ql-indent-1:not(.ql-direction-rtl){padding-left:4.5em}.ql-editor .ql-indent-1.ql-direction-rtl.ql-align-right{padding-right:3em}.ql-editor li.ql-indent-1.ql-direction-rtl.ql-align-right{padding-right:4.5em}.ql-editor .ql-indent-2:not(.ql-direction-rtl){padding-left:6em}.ql-editor li.ql-indent-2:not(.ql-direction-rtl){padding-left:7.5em}.ql-editor .ql-indent-2.ql-direction-rtl.ql-align-right{padding-right:6em}.ql-editor li.ql-indent-2.ql-direction-rtl.ql-align-right{padding-right:7.5em}.ql-editor .ql-indent-3:not(.ql-direction-rtl){padding-left:9em}.ql-editor li.ql-indent-3:not(.ql-direction-rtl){padding-left:10.5em}.ql-editor .ql-indent-3.ql-direction-rtl.ql-align-right{padding-right:9em}.ql-editor li.ql-indent-3.ql-direction-rtl.ql-align-right{padding-right:10.5em}.ql-editor .ql-indent-4:not(.ql-direction-rtl){padding-left:12em}.ql-editor li.ql-indent-4:not(.ql-direction-rtl){padding-left:13.5em}.ql-editor .ql-indent-4.ql-direction-rtl.ql-align-right{padding-right:12em}.ql-editor li.ql-indent-4.ql-direction-rtl.ql-align-right{padding-right:13.5em}.ql-editor .ql-indent-5:not(.ql-direction-rtl){padding-left:15em}.ql-editor li.ql-indent-5:not(.ql-direction-rtl){padding-left:16.5em}.ql-editor .ql-indent-5.ql-direction-rtl.ql-align-right{padding-right:15em}.ql-editor li.ql-indent-5.ql-direction-rtl.ql-align-right{padding-right:16.5em}.ql-editor .ql-indent-6:not(.ql-direction-rtl){padding-left:18em}.ql-editor li.ql-indent-6:not(.ql-direction-rtl){padding-left:19.5em}.ql-editor .ql-indent-6.ql-direction-rtl.ql-align-right{padding-right:18em}.ql-editor li.ql-indent-6.ql-direction-rtl.ql-align-right{padding-right:19.5em}.ql-editor .ql-indent-7:not(.ql-direction-rtl){padding-left:21em}.ql-editor li.ql-indent-7:not(.ql-direction-rtl){padding-left:22.5em}.ql-editor .ql-indent-7.ql-direction-rtl.ql-align-right{padding-right:21em}.ql-editor li.ql-indent-7.ql-direction-rtl.ql-align-right{padding-right:22.5em}.ql-editor .ql-indent-8:not(.ql-direction-rtl){padding-left:24em}.ql-editor li.ql-indent-8:not(.ql-direction-rtl){padding-left:25.5em}.ql-editor .ql-indent-8.ql-direction-rtl.ql-align-right{padding-right:24em}.ql-editor li.ql-indent-8.ql-direction-rtl.ql-align-right{padding-right:25.5em}.ql-editor .ql-indent-9:not(.ql-direction-rtl){padding-left:27em}.ql-editor li.ql-indent-9:not(.ql-direction-rtl){padding-left:28.5em}.ql-editor .ql-indent-9.ql-direction-rtl.ql-align-right{padding-right:27em}.ql-editor li.ql-indent-9.ql-direction-rtl.ql-align-right{padding-right:28.5em}.ql-editor .ql-video{display:block;max-width:100%}.ql-editor .ql-video.ql-align-center{margin:0 auto}.ql-editor .ql-video.ql-align-right{margin:0 0 0 auto}.ql-editor .ql-bg-black{background-color:#000}.ql-editor .ql-bg-red{background-color:#e60000}.ql-editor .ql-bg-orange{background-color:#f90}.ql-editor .ql-bg-yellow{background-color:#ff0}.ql-editor .ql-bg-green{background-color:#008a00}.ql-editor .ql-bg-blue{background-color:#06c}.ql-editor .ql-bg-purple{background-color:#93f}.ql-editor .ql-color-white{color:#fff}.ql-editor .ql-color-red{color:#e60000}.ql-editor .ql-color-orange{color:#f90}.ql-editor .ql-color-yellow{color:#ff0}.ql-editor .ql-color-green{color:#008a00}.ql-editor .ql-color-blue{color:#06c}.ql-editor .ql-color-purple{color:#93f}.ql-editor .ql-font-serif{font-family:Georgia,Times New Roman,serif}.ql-editor .ql-font-monospace{font-family:Monaco,Courier New,monospace}.ql-editor .ql-size-small{font-size:.75em}.ql-editor .ql-size-large{font-size:1.5em}.ql-editor .ql-size-huge{font-size:2.5em}.ql-editor .ql-direction-rtl{direction:rtl;text-align:inherit}.ql-editor .ql-align-center{text-align:center}.ql-editor .ql-align-justify{text-align:justify}.ql-editor .ql-align-right{text-align:right}.ql-editor.ql-blank:before{color:#0009;content:attr(data-placeholder);font-style:italic;left:15px;pointer-events:none;position:absolute;right:15px}.ql-snow.ql-toolbar:after,.ql-snow .ql-toolbar:after{clear:both;content:"";display:table}.ql-snow.ql-toolbar button,.ql-snow .ql-toolbar button{background:none;border:none;cursor:pointer;display:inline-block;float:left;height:24px;padding:3px 5px;width:28px}.ql-snow.ql-toolbar button svg,.ql-snow .ql-toolbar button svg{float:left;height:100%}.ql-snow.ql-toolbar button:active:hover,.ql-snow .ql-toolbar button:active:hover{outline:none}.ql-snow.ql-toolbar input.ql-image[type=file],.ql-snow .ql-toolbar input.ql-image[type=file]{display:none}.ql-snow.ql-toolbar button:hover,.ql-snow .ql-toolbar button:hover,.ql-snow.ql-toolbar button:focus,.ql-snow .ql-toolbar button:focus,.ql-snow.ql-toolbar button.ql-active,.ql-snow .ql-toolbar button.ql-active,.ql-snow.ql-toolbar .ql-picker-label:hover,.ql-snow .ql-toolbar .ql-picker-label:hover,.ql-snow.ql-toolbar .ql-picker-label.ql-active,.ql-snow .ql-toolbar .ql-picker-label.ql-active,.ql-snow.ql-toolbar .ql-picker-item:hover,.ql-snow .ql-toolbar .ql-picker-item:hover,.ql-snow.ql-toolbar .ql-picker-item.ql-selected,.ql-snow .ql-toolbar .ql-picker-item.ql-selected{color:#06c}.ql-snow.ql-toolbar button:hover .ql-fill,.ql-snow .ql-toolbar button:hover .ql-fill,.ql-snow.ql-toolbar button:focus .ql-fill,.ql-snow .ql-toolbar button:focus .ql-fill,.ql-snow.ql-toolbar button.ql-active .ql-fill,.ql-snow .ql-toolbar button.ql-active .ql-fill,.ql-snow.ql-toolbar .ql-picker-label:hover .ql-fill,.ql-snow .ql-toolbar .ql-picker-label:hover .ql-fill,.ql-snow.ql-toolbar .ql-picker-label.ql-active .ql-fill,.ql-snow .ql-toolbar .ql-picker-label.ql-active .ql-fill,.ql-snow.ql-toolbar .ql-picker-item:hover .ql-fill,.ql-snow .ql-toolbar .ql-picker-item:hover .ql-fill,.ql-snow.ql-toolbar .ql-picker-item.ql-selected .ql-fill,.ql-snow .ql-toolbar .ql-picker-item.ql-selected .ql-fill,.ql-snow.ql-toolbar button:hover .ql-stroke.ql-fill,.ql-snow .ql-toolbar button:hover .ql-stroke.ql-fill,.ql-snow.ql-toolbar button:focus .ql-stroke.ql-fill,.ql-snow .ql-toolbar button:focus .ql-stroke.ql-fill,.ql-snow.ql-toolbar button.ql-active .ql-stroke.ql-fill,.ql-snow .ql-toolbar button.ql-active .ql-stroke.ql-fill,.ql-snow.ql-toolbar .ql-picker-label:hover .ql-stroke.ql-fill,.ql-snow .ql-toolbar .ql-picker-label:hover .ql-stroke.ql-fill,.ql-snow.ql-toolbar .ql-picker-label.ql-active .ql-stroke.ql-fill,.ql-snow .ql-toolbar .ql-picker-label.ql-active .ql-stroke.ql-fill,.ql-snow.ql-toolbar .ql-picker-item:hover .ql-stroke.ql-fill,.ql-snow .ql-toolbar .ql-picker-item:hover .ql-stroke.ql-fill,.ql-snow.ql-toolbar .ql-picker-item.ql-selected .ql-stroke.ql-fill,.ql-snow .ql-toolbar .ql-picker-item.ql-selected .ql-stroke.ql-fill{fill:#06c}.ql-snow.ql-toolbar button:hover .ql-stroke,.ql-snow .ql-toolbar button:hover .ql-stroke,.ql-snow.ql-toolbar button:focus .ql-stroke,.ql-snow .ql-toolbar button:focus .ql-stroke,.ql-snow.ql-toolbar button.ql-active .ql-stroke,.ql-snow .ql-toolbar button.ql-active .ql-stroke,.ql-snow.ql-toolbar .ql-picker-label:hover .ql-stroke,.ql-snow .ql-toolbar .ql-picker-label:hover .ql-stroke,.ql-snow.ql-toolbar .ql-picker-label.ql-active .ql-stroke,.ql-snow .ql-toolbar .ql-picker-label.ql-active .ql-stroke,.ql-snow.ql-toolbar .ql-picker-item:hover .ql-stroke,.ql-snow .ql-toolbar .ql-picker-item:hover .ql-stroke,.ql-snow.ql-toolbar .ql-picker-item.ql-selected .ql-stroke,.ql-snow .ql-toolbar .ql-picker-item.ql-selected .ql-stroke,.ql-snow.ql-toolbar button:hover .ql-stroke-miter,.ql-snow .ql-toolbar button:hover .ql-stroke-miter,.ql-snow.ql-toolbar button:focus .ql-stroke-miter,.ql-snow .ql-toolbar button:focus .ql-stroke-miter,.ql-snow.ql-toolbar button.ql-active .ql-stroke-miter,.ql-snow .ql-toolbar button.ql-active .ql-stroke-miter,.ql-snow.ql-toolbar .ql-picker-label:hover .ql-stroke-miter,.ql-snow .ql-toolbar .ql-picker-label:hover .ql-stroke-miter,.ql-snow.ql-toolbar .ql-picker-label.ql-active .ql-stroke-miter,.ql-snow .ql-toolbar .ql-picker-label.ql-active .ql-stroke-miter,.ql-snow.ql-toolbar .ql-picker-item:hover .ql-stroke-miter,.ql-snow .ql-toolbar .ql-picker-item:hover .ql-stroke-miter,.ql-snow.ql-toolbar .ql-picker-item.ql-selected .ql-stroke-miter,.ql-snow .ql-toolbar .ql-picker-item.ql-selected .ql-stroke-miter{stroke:#06c}@media(pointer:coarse){.ql-snow.ql-toolbar button:hover:not(.ql-active),.ql-snow .ql-toolbar button:hover:not(.ql-active){color:#444}.ql-snow.ql-toolbar button:hover:not(.ql-active) .ql-fill,.ql-snow .ql-toolbar button:hover:not(.ql-active) .ql-fill,.ql-snow.ql-toolbar button:hover:not(.ql-active) .ql-stroke.ql-fill,.ql-snow .ql-toolbar button:hover:not(.ql-active) .ql-stroke.ql-fill{fill:#444}.ql-snow.ql-toolbar button:hover:not(.ql-active) .ql-stroke,.ql-snow .ql-toolbar button:hover:not(.ql-active) .ql-stroke,.ql-snow.ql-toolbar button:hover:not(.ql-active) .ql-stroke-miter,.ql-snow .ql-toolbar button:hover:not(.ql-active) .ql-stroke-miter{stroke:#444}}.ql-snow,.ql-snow *{box-sizing:border-box}.ql-snow .ql-hidden{display:none}.ql-snow .ql-out-bottom,.ql-snow .ql-out-top{visibility:hidden}.ql-snow .ql-tooltip{position:absolute;transform:translateY(10px)}.ql-snow .ql-tooltip a{cursor:pointer;text-decoration:none}.ql-snow .ql-tooltip.ql-flip{transform:translateY(-10px)}.ql-snow .ql-formats{display:inline-block;vertical-align:middle}.ql-snow .ql-formats:after{clear:both;content:"";display:table}.ql-snow .ql-stroke{fill:none;stroke:#444;stroke-linecap:round;stroke-linejoin:round;stroke-width:2}.ql-snow .ql-stroke-miter{fill:none;stroke:#444;stroke-miterlimit:10;stroke-width:2}.ql-snow .ql-fill,.ql-snow .ql-stroke.ql-fill{fill:#444}.ql-snow .ql-empty{fill:none}.ql-snow .ql-even{fill-rule:evenodd}.ql-snow .ql-thin,.ql-snow .ql-stroke.ql-thin{stroke-width:1}.ql-snow .ql-transparent{opacity:.4}.ql-snow .ql-direction svg:last-child{display:none}.ql-snow .ql-direction.ql-active svg:last-child{display:inline}.ql-snow .ql-direction.ql-active svg:first-child{display:none}.ql-snow .ql-editor h1{font-size:2em}.ql-snow .ql-editor h2{font-size:1.5em}.ql-snow .ql-editor h3{font-size:1.17em}.ql-snow .ql-editor h4{font-size:1em}.ql-snow .ql-editor h5{font-size:.83em}.ql-snow .ql-editor h6{font-size:.67em}.ql-snow .ql-editor a{text-decoration:underline}.ql-snow .ql-editor blockquote{border-left:4px solid #ccc;margin-bottom:5px;margin-top:5px;padding-left:16px}.ql-snow .ql-editor code,.ql-snow .ql-editor pre{background-color:#f0f0f0;border-radius:3px}.ql-snow .ql-editor pre{white-space:pre-wrap;margin-bottom:5px;margin-top:5px;padding:5px 10px}.ql-snow .ql-editor code{font-size:85%;padding:2px 4px}.ql-snow .ql-editor pre.ql-syntax{background-color:#23241f;color:#f8f8f2;overflow:visible}.ql-snow .ql-editor img{max-width:100%}.ql-snow .ql-picker{color:#444;display:inline-block;float:left;font-size:14px;font-weight:500;height:24px;position:relative;vertical-align:middle}.ql-snow .ql-picker-label{cursor:pointer;display:inline-block;height:100%;padding-left:8px;padding-right:2px;position:relative;width:100%}.ql-snow .ql-picker-label:before{display:inline-block;line-height:22px}.ql-snow .ql-picker-options{background-color:#fff;display:none;min-width:100%;padding:4px 8px;position:absolute;white-space:nowrap}.ql-snow .ql-picker-options .ql-picker-item{cursor:pointer;display:block;padding-bottom:5px;padding-top:5px}.ql-snow .ql-picker.ql-expanded .ql-picker-label{color:#ccc;z-index:2}.ql-snow .ql-picker.ql-expanded .ql-picker-label .ql-fill{fill:#ccc}.ql-snow .ql-picker.ql-expanded .ql-picker-label .ql-stroke{stroke:#ccc}.ql-snow .ql-picker.ql-expanded .ql-picker-options{display:block;margin-top:-1px;top:100%;z-index:1}.ql-snow .ql-color-picker,.ql-snow .ql-icon-picker{width:28px}.ql-snow .ql-color-picker .ql-picker-label,.ql-snow .ql-icon-picker .ql-picker-label{padding:2px 4px}.ql-snow .ql-color-picker .ql-picker-label svg,.ql-snow .ql-icon-picker .ql-picker-label svg{right:4px}.ql-snow .ql-icon-picker .ql-picker-options{padding:4px 0}.ql-snow .ql-icon-picker .ql-picker-item{height:24px;width:24px;padding:2px 4px}.ql-snow .ql-color-picker .ql-picker-options{padding:3px 5px;width:152px}.ql-snow .ql-color-picker .ql-picker-item{border:1px solid transparent;float:left;height:16px;margin:2px;padding:0;width:16px}.ql-snow .ql-picker:not(.ql-color-picker):not(.ql-icon-picker) svg{position:absolute;margin-top:-9px;right:0;top:50%;width:18px}.ql-snow .ql-picker.ql-header .ql-picker-label[data-label]:not([data-label=""]):before,.ql-snow .ql-picker.ql-font .ql-picker-label[data-label]:not([data-label=""]):before,.ql-snow .ql-picker.ql-size .ql-picker-label[data-label]:not([data-label=""]):before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-label]:not([data-label=""]):before,.ql-snow .ql-picker.ql-font .ql-picker-item[data-label]:not([data-label=""]):before,.ql-snow .ql-picker.ql-size .ql-picker-item[data-label]:not([data-label=""]):before{content:attr(data-label)}.ql-snow .ql-picker.ql-header{width:98px}.ql-snow .ql-picker.ql-header .ql-picker-label:before,.ql-snow .ql-picker.ql-header .ql-picker-item:before{content:"Normal"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]:before{content:"Heading 1"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]:before{content:"Heading 2"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]:before{content:"Heading 3"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]:before{content:"Heading 4"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]:before{content:"Heading 5"}.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]:before,.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]:before{content:"Heading 6"}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]:before{font-size:2em}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]:before{font-size:1.5em}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]:before{font-size:1.17em}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]:before{font-size:1em}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]:before{font-size:.83em}.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]:before{font-size:.67em}.ql-snow .ql-picker.ql-font{width:108px}.ql-snow .ql-picker.ql-font .ql-picker-label:before,.ql-snow .ql-picker.ql-font .ql-picker-item:before{content:"Sans Serif"}.ql-snow .ql-picker.ql-font .ql-picker-label[data-value=serif]:before,.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=serif]:before{content:"Serif"}.ql-snow .ql-picker.ql-font .ql-picker-label[data-value=monospace]:before,.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=monospace]:before{content:"Monospace"}.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=serif]:before{font-family:Georgia,Times New Roman,serif}.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=monospace]:before{font-family:Monaco,Courier New,monospace}.ql-snow .ql-picker.ql-size{width:98px}.ql-snow .ql-picker.ql-size .ql-picker-label:before,.ql-snow .ql-picker.ql-size .ql-picker-item:before{content:"Normal"}.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=small]:before,.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=small]:before{content:"Small"}.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=large]:before,.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=large]:before{content:"Large"}.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=huge]:before,.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=huge]:before{content:"Huge"}.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=small]:before{font-size:10px}.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=large]:before{font-size:18px}.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=huge]:before{font-size:32px}.ql-snow .ql-color-picker.ql-background .ql-picker-item{background-color:#fff}.ql-snow .ql-color-picker.ql-color .ql-picker-item{background-color:#000}.ql-toolbar.ql-snow{border:1px solid #ccc;box-sizing:border-box;font-family:Helvetica Neue,Helvetica,Arial,sans-serif;padding:8px}.ql-toolbar.ql-snow .ql-formats{margin-right:15px}.ql-toolbar.ql-snow .ql-picker-label{border:1px solid transparent}.ql-toolbar.ql-snow .ql-picker-options{border:1px solid transparent;box-shadow:#0003 0 2px 8px}.ql-toolbar.ql-snow .ql-picker.ql-expanded .ql-picker-label,.ql-toolbar.ql-snow .ql-picker.ql-expanded .ql-picker-options{border-color:#ccc}.ql-toolbar.ql-snow .ql-color-picker .ql-picker-item.ql-selected,.ql-toolbar.ql-snow .ql-color-picker .ql-picker-item:hover{border-color:#000}.ql-toolbar.ql-snow+.ql-container.ql-snow{border-top:0px}.ql-snow .ql-tooltip{background-color:#fff;border:1px solid #ccc;box-shadow:0 0 5px #ddd;color:#444;padding:5px 12px;white-space:nowrap}.ql-snow .ql-tooltip:before{content:"Visit URL:";line-height:26px;margin-right:8px}.ql-snow .ql-tooltip input[type=text]{display:none;border:1px solid #ccc;font-size:13px;height:26px;margin:0;padding:3px 5px;width:170px}.ql-snow .ql-tooltip a.ql-preview{display:inline-block;max-width:200px;overflow-x:hidden;text-overflow:ellipsis;vertical-align:top}.ql-snow .ql-tooltip a.ql-action:after{border-right:1px solid #ccc;content:"Edit";margin-left:16px;padding-right:8px}.ql-snow .ql-tooltip a.ql-remove:before{content:"Remove";margin-left:8px}.ql-snow .ql-tooltip a{line-height:26px}.ql-snow .ql-tooltip.ql-editing a.ql-preview,.ql-snow .ql-tooltip.ql-editing a.ql-remove{display:none}.ql-snow .ql-tooltip.ql-editing input[type=text]{display:inline-block}.ql-snow .ql-tooltip.ql-editing a.ql-action:after{border-right:0px;content:"Save";padding-right:0}.ql-snow .ql-tooltip[data-mode=link]:before{content:"Enter link:"}.ql-snow .ql-tooltip[data-mode=formula]:before{content:"Enter formula:"}.ql-snow .ql-tooltip[data-mode=video]:before{content:"Enter video:"}.ql-snow a{color:#06c}.ql-container.ql-snow{border:1px solid #ccc}.color-picker{margin-bottom:20px}.color-picker-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text-primary)}.color-options{display:flex;gap:8px;flex-wrap:wrap}.color-option{width:36px;height:36px;border-radius:50%;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;box-shadow:0 1px 3px #0000001a;position:relative}.color-option:hover{transform:scale(1.1);box-shadow:0 2px 6px #00000026}.color-option.selected{transform:scale(1.15);box-shadow:0 0 0 3px #3b82f64d}.checkmark{color:#fff;font-size:18px;font-weight:700;text-shadow:0 1px 2px rgba(0,0,0,.3)}.color-option[style*="background-color: #ffffff"] .checkmark{color:#333}.note-editor{min-height:100vh;background:var(--background-secondary)}.editor-header{background:var(--background);padding:20px 30px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:10}.editor-actions{display:flex;gap:10px}.editor-content{display:flex;max-width:1400px;margin:0 auto;padding:30px;gap:30px}.editor-main{flex:1;background:var(--background);border-radius:var(--border-radius);padding:30px;box-shadow:var(--shadow)}.note-title-input{border:none;font-size:32px;font-weight:600;margin-bottom:20px;padding:0}.note-title-input:focus{border:none;outline:none}.note-content-editor{min-height:500px}.note-content-editor .ql-container{border:none;font-size:16px;min-height:500px}.note-content-editor .ql-editor{min-height:500px;padding:0}.note-content-editor .ql-toolbar{border:none;border-bottom:1px solid var(--border-color);padding:10px 0;margin-bottom:20px}.editor-sidebar{width:300px;display:flex;flex-direction:column;gap:20px}.editor-section{background:var(--background);border-radius:var(--border-radius);padding:20px;box-shadow:var(--shadow)}.editor-section h3{font-size:14px;font-weight:600;text-transform:uppercase;color:var(--text-secondary);margin-bottom:15px}.tag-input-form{display:flex;gap:8px;margin-bottom:10px}.tag-input-form input{flex:1}.tags-list{display:flex;flex-wrap:wrap;gap:8px}.tags-list .tag{background-color:var(--primary-color);color:#fff;padding:6px 12px;border-radius:16px;font-size:13px;display:inline-flex;align-items:center;gap:6px}.tags-list .tag button{background:none;border:none;color:#fff;cursor:pointer;font-size:18px;padding:0;line-height:1;opacity:.8;transition:opacity .2s}.tags-list .tag button:hover{opacity:1}.file-upload-btn{width:100%;justify-content:center;margin-bottom:10px}.attachments-list{display:flex;flex-direction:column;gap:8px}.attachment-item{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;background:var(--background-secondary);border-radius:var(--border-radius);font-size:14px}.attachment-link{flex:1;color:var(--text-primary);text-decoration:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-link:hover{color:var(--primary-color)}.btn-remove-attachment{background:none;border:none;color:var(--danger-color);cursor:pointer;font-size:20px;padding:0;line-height:1;opacity:.6;transition:opacity .2s}.btn-remove-attachment:hover{opacity:1}@media(max-width:1024px){.editor-content{flex-direction:column}.editor-sidebar{width:100%}}
