@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";:root{--c-bg: #f5f7fa;--c-surface: #ffffff;--c-surface2: #f0f4f8;--c-surface3: #e2e8f0;--c-border: #e2e8f0;--c-border2: #cbd5e1;--c-text: #0f172a;--c-text2: #334155;--c-text3: #64748b;--c-accent: #2563eb;--c-accent-h: #1d4ed8;--c-accent-bg: #2563eb14;--c-success: #16a34a;--c-warning: #d97706;--c-danger: #dc2626;--c-purple: #7c3aed;--r-sm: 6px;--r-md: 10px;--r-lg: 16px;--sidebar-w: 280px;--toolbar-h: 52px;--bottomnav-h: 60px;--t: .2s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;background:var(--c-bg);color:var(--c-text);font-family:Inter,system-ui,sans-serif;font-size:15px;line-height:1.6;overflow:hidden}#root{height:100%;display:flex}button{cursor:pointer;border:none;background:none;font-family:inherit;color:inherit}input,textarea,select{font-family:inherit;color:inherit;background:var(--c-surface2);border:1px solid var(--c-border2);border-radius:var(--r-sm);padding:8px 12px;outline:none;width:100%;transition:border-color var(--t)}input:focus,textarea:focus{border-color:var(--c-accent)}a{color:var(--c-accent);text-decoration:none}a:hover{text-decoration:underline}.app-layout{display:flex;height:100%;width:100%;overflow:hidden}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--c-surface3);border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--c-border2)}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);height:100%;background:var(--c-surface);border-right:1px solid var(--c-border);display:flex;flex-direction:column;overflow:hidden;transition:transform var(--t);z-index:100}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:18px 16px;border-bottom:1px solid var(--c-border)}.sidebar-logo svg{color:var(--c-accent)}.sidebar-logo h1{font-size:17px;font-weight:700;background:linear-gradient(135deg,var(--c-accent),var(--c-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-search{padding:12px;border-bottom:1px solid var(--c-border)}.sidebar-search input{font-size:13px;padding:7px 10px}.sidebar-section{padding:8px 0;flex:1;overflow-y:auto}.sidebar-section-title{font-size:11px;font-weight:600;color:var(--c-text3);text-transform:uppercase;letter-spacing:.06em;padding:6px 16px}.sidebar-btn{display:flex;align-items:center;gap:10px;padding:8px 14px;font-size:14px;color:var(--c-text2);width:100%;text-align:left;border-radius:var(--r-sm);margin:1px 4px;width:calc(100% - 8px);transition:background var(--t),color var(--t);position:relative}.sidebar-btn:hover{background:var(--c-surface2);color:var(--c-text)}.sidebar-btn.active{background:var(--c-accent-bg);color:var(--c-accent)}.sidebar-btn .icon{font-size:16px;min-width:18px}.sidebar-btn .label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-btn .count{font-size:11px;background:var(--c-surface3);color:var(--c-text3);padding:1px 6px;border-radius:99px}.sidebar-project-header{display:flex;align-items:center;justify-content:space-between;padding:4px 12px 4px 14px}.sidebar-project-header button{font-size:18px;color:var(--c-text3);padding:2px 6px;border-radius:var(--r-sm);transition:background var(--t),color var(--t)}.sidebar-project-header button:hover{background:var(--c-surface2);color:var(--c-text)}.sidebar-doc-item{display:flex;align-items:center;gap:8px;padding:6px 14px 6px 30px;font-size:13px;color:var(--c-text3);cursor:pointer;transition:background var(--t),color var(--t);border-radius:var(--r-sm);margin:1px 4px;width:calc(100% - 8px)}.sidebar-doc-item:hover{background:var(--c-surface2);color:var(--c-text2)}.sidebar-doc-item.active{background:var(--c-accent-bg);color:var(--c-accent)}.sidebar-doc-item .doc-icon{font-size:13px;min-width:14px}.sidebar-doc-item .doc-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-footer{border-top:1px solid var(--c-border);padding:12px}.sidebar-footer-btn{display:flex;align-items:center;gap:8px;padding:9px 12px;font-size:13px;color:var(--c-text2);border-radius:var(--r-sm);width:100%;transition:background var(--t),color var(--t)}.sidebar-footer-btn:hover{background:var(--c-surface2);color:var(--c-text)}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden;height:100%;min-width:0}.toolbar{height:var(--toolbar-h);min-height:var(--toolbar-h);display:flex;align-items:center;gap:6px;padding:0 16px;background:var(--c-surface);border-bottom:1px solid var(--c-border);overflow-x:auto}.toolbar-divider{width:1px;height:22px;background:var(--c-border2);margin:0 4px}.toolbar-btn{display:flex;align-items:center;gap:6px;padding:6px 12px;font-size:13px;color:var(--c-text2);border-radius:var(--r-sm);white-space:nowrap;transition:background var(--t),color var(--t)}.toolbar-btn:hover{background:var(--c-surface2);color:var(--c-text)}.toolbar-btn.active{background:var(--c-accent-bg);color:var(--c-accent)}.toolbar-btn.danger:hover{background:#ef44441a;color:var(--c-danger)}.toolbar-spacer{flex:1}.toolbar-doc-title{font-size:14px;font-weight:500;color:var(--c-text);max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.paper-container{flex:1;overflow-y:auto;padding:40px;max-width:800px;margin:0 auto;width:100%}.paper-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--c-text3);gap:16px;text-align:center}.paper-placeholder svg{opacity:.3}.paper-placeholder h3{font-size:18px;color:var(--c-text2)}.paper-placeholder p{font-size:14px;max-width:360px}.md-content h1,.md-content h2,.md-content h3,.md-content h4,.md-content h5,.md-content h6{margin:1.6em 0 .6em;line-height:1.3;color:var(--c-text)}.md-content h1{font-size:2em;border-bottom:1px solid var(--c-border);padding-bottom:.4em}.md-content h2{font-size:1.5em;border-bottom:1px solid var(--c-border);padding-bottom:.3em}.md-content h3{font-size:1.25em}.md-content p{margin:.8em 0;color:var(--c-text2)}.md-content a{color:var(--c-accent)}.md-content code{font-family:JetBrains Mono,monospace;font-size:.85em;background:#e8f0fe;border:1px solid #c7d7f4;color:#1e40af;padding:1px 5px;border-radius:4px}.md-content pre{background:#1e293b;border:1px solid var(--c-border);border-radius:var(--r-md);padding:16px;overflow-x:auto;margin:1em 0}.md-content pre code{background:none;border:none;padding:0;color:#e2e8f0}.md-content blockquote{border-left:3px solid var(--c-accent);padding:4px 0 4px 16px;margin:1em 0;color:var(--c-text3);font-style:italic;background:var(--c-accent-bg);border-radius:0 var(--r-sm) var(--r-sm) 0}.md-content table{width:100%;border-collapse:collapse;margin:1em 0;font-size:14px}.md-content th{background:var(--c-surface2);color:var(--c-text)}.md-content th,.md-content td{padding:8px 12px;border:1px solid var(--c-border2);color:var(--c-text2)}.md-content tr:hover{background:var(--c-surface2)}.md-content ul,.md-content ol{padding-left:24px;margin:.8em 0;color:var(--c-text2)}.md-content li{margin:.3em 0}.md-content img{max-width:100%;border-radius:var(--r-md)}.md-content hr{border:none;border-top:1px solid var(--c-border);margin:2em 0}.file-manager{flex:1;overflow-y:auto;padding:24px}.file-manager-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.file-manager-header h2{font-size:18px;font-weight:600}.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}.file-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);padding:16px;cursor:pointer;transition:border-color var(--t),background var(--t),transform var(--t);position:relative}.file-card:hover{border-color:var(--c-accent);background:var(--c-surface2);transform:translateY(-2px)}.file-card-icon{font-size:32px;margin-bottom:10px}.file-card-name{font-size:13px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--c-text)}.file-card-meta{font-size:12px;color:var(--c-text3);margin-top:4px}.file-card-del{position:absolute;top:8px;right:8px;opacity:0;transition:opacity var(--t);color:var(--c-danger);padding:4px;border-radius:var(--r-sm)}.file-card:hover .file-card-del{opacity:1}.file-card-del:hover{background:#ef44441a}.file-dropper{border:2px dashed var(--c-border2);border-radius:var(--r-lg);padding:40px;text-align:center;color:var(--c-text3);cursor:pointer;transition:border-color var(--t),background var(--t),color var(--t);margin-bottom:24px}.file-dropper:hover,.file-dropper.drag-over{border-color:var(--c-accent);background:var(--c-accent-bg);color:var(--c-accent)}.file-dropper .drop-icon{font-size:36px;margin-bottom:10px}.file-dropper p{font-size:14px}.file-dropper small{font-size:12px;color:var(--c-text3)}.notes-manager{flex:1;overflow-y:auto;padding:24px}.notes-manager h2{font-size:18px;font-weight:600;margin-bottom:20px}.note-card{background:var(--c-surface);border:1px solid var(--c-border);border-left:3px solid var(--c-accent);border-radius:var(--r-md);padding:14px 16px;margin-bottom:10px;cursor:pointer;transition:border-color var(--t),transform var(--t)}.note-card:hover{border-left-color:var(--c-purple);transform:translate(3px)}.note-card-type{font-size:11px;color:var(--c-text3);text-transform:uppercase;margin-bottom:6px}.note-card-text{font-size:14px;color:var(--c-text2)}.note-card-meta{font-size:12px;color:var(--c-text3);margin-top:6px}.note-card-actions{display:flex;gap:8px;margin-top:8px}.note-card-actions button{font-size:12px;color:var(--c-text3);padding:3px 8px;border-radius:4px}.note-card-actions button:hover{background:var(--c-surface2);color:var(--c-text)}.focus-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#060a10;z-index:500;display:flex;flex-direction:column}.focus-toolbar{display:flex;align-items:center;gap:8px;padding:10px 16px;background:#0b0f1a99;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--c-border)}.focus-content{flex:1;overflow-y:auto;padding:48px 32px}.focus-content .paper-container{padding:0;margin:0 auto}.focus-title{font-size:14px;font-weight:500;flex:1;text-align:center}.focus-btn{display:flex;align-items:center;gap:6px;padding:6px 12px;font-size:13px;color:var(--c-text2);border-radius:var(--r-sm);transition:background var(--t),color var(--t)}.focus-btn:hover{background:var(--c-surface2);color:var(--c-text)}.annotation-canvas{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:10}.annotation-canvas.mode-draw{pointer-events:all;cursor:crosshair}.annotation-canvas.mode-highlight{pointer-events:all;cursor:text}.ann-mode-bar{display:flex;align-items:center;gap:4px}.ann-mode-btn{padding:5px 10px;font-size:12px;border-radius:var(--r-sm);color:var(--c-text3);transition:background var(--t),color var(--t)}.ann-mode-btn:hover{background:var(--c-surface2);color:var(--c-text2)}.ann-mode-btn.active{background:var(--c-accent-bg);color:var(--c-accent)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0008;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px;animation:fadeIn .15s ease}.modal{background:var(--c-surface);border:1px solid var(--c-border2);border-radius:var(--r-lg);padding:24px;width:100%;max-width:440px;animation:slideUp .2s ease}.modal h3{font-size:17px;margin-bottom:16px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 18px;font-size:14px;font-weight:500;border-radius:var(--r-sm);transition:background var(--t),transform .1s}.btn:active{transform:scale(.97)}.btn-primary{background:var(--c-accent);color:#fff}.btn-primary:hover{background:var(--c-accent-h)}.btn-ghost{color:var(--c-text2)}.btn-ghost:hover{background:var(--c-surface2);color:var(--c-text)}.btn-danger{color:var(--c-danger)}.btn-danger:hover{background:#ef44441a}.btn-sm{padding:6px 12px;font-size:13px}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:99px;font-size:12px;font-weight:500}.badge-md{background:#3b82f622;color:#60a5fa}.badge-docx{background:#2563eb22;color:#93c5fd}.badge-html{background:#f59e0b22;color:#fbbf24}.toast-container{position:fixed;bottom:80px;right:20px;z-index:2000;display:flex;flex-direction:column;gap:8px}.toast{background:var(--c-surface2);border:1px solid var(--c-border2);border-radius:var(--r-md);padding:12px 16px;font-size:14px;min-width:240px;animation:slideUp .2s ease;display:flex;align-items:center;gap:10px}.toast-success{border-left:3px solid var(--c-success)}.toast-error{border-left:3px solid var(--c-danger)}.toast-info{border-left:3px solid var(--c-accent)}.loading-spinner{width:18px;height:18px;border:2px solid var(--c-border2);border-top-color:var(--c-accent);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;height:var(--bottomnav-h);background:var(--c-surface);border-top:1px solid var(--c-border);z-index:200;padding:0 8px;align-items:center;justify-content:space-around}.bottom-nav-btn{display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 16px;font-size:11px;color:var(--c-text3);border-radius:var(--r-md);transition:color var(--t);flex:1}.bottom-nav-btn .nav-icon{font-size:20px}.bottom-nav-btn.active{color:var(--c-accent)}@media(max-width:768px){.sidebar{display:none}.bottom-nav{display:flex}.main-content{padding-bottom:var(--bottomnav-h)}.toolbar{display:none}.paper-container{padding:20px 16px}.file-manager,.notes-manager{padding:16px}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--c-text3);text-align:center;padding:60px 20px}.empty-state svg{opacity:.2}.empty-state h3{font-size:16px;color:var(--c-text2)}.empty-state p{font-size:14px;max-width:320px}.mermaid-wrapper{background:var(--c-surface2);border:1px solid var(--c-border);border-radius:var(--r-md);padding:20px;margin:16px 0;overflow-x:auto}pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}/*!
  Theme: GitHub
  Description: Light theme as seen on github.com
  Author: github.com
  Maintainer: @Hirse
  Updated: 2021-05-15

  Outdated base version: https://github.com/primer/github-syntax-light
  Current colors taken from GitHub's CSS
*/.hljs{color:#24292e;background:#fff}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#d73a49}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#6f42c1}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#005cc5}.hljs-regexp,.hljs-string,.hljs-meta .hljs-string{color:#032f62}.hljs-built_in,.hljs-symbol{color:#e36209}.hljs-comment,.hljs-code,.hljs-formula{color:#6a737d}.hljs-name,.hljs-quote,.hljs-selector-tag,.hljs-selector-pseudo{color:#22863a}.hljs-subst{color:#24292e}.hljs-section{color:#005cc5;font-weight:700}.hljs-bullet{color:#735c0f}.hljs-emphasis{color:#24292e;font-style:italic}.hljs-strong{color:#24292e;font-weight:700}.hljs-addition{color:#22863a;background-color:#f0fff4}.hljs-deletion{color:#b31d28;background-color:#ffeef0}