:root{--primary: #1a73e8;--primary-rgb: 26, 115, 232;--primary-hover: #1557b0;--bg: #f5f5f5;--surface: #ffffff;--surface-secondary: #f8f9fa;--text: #202124;--text-secondary: #5f6368;--border: #dadce0;--tab-bg: #eceef1;--shadow-sm: 0 1px 2px 0 rgba(60,64,67,.3);--shadow-md: 0 4px 12px rgba(0,0,0,.08);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 24px;--font-sans: "Inter", system-ui, -apple-system, sans-serif}[data-theme=dark]{--bg: #141414;--surface: #1e1e1e;--surface-secondary: #2d2d2d;--text: #e8eaed;--text-secondary: #9aa0a6;--border: #3c4043;--tab-bg: #2d2d2d;--primary: #8ab4f8;--primary-rgb: 138, 180, 248}[data-theme=sepia]{--bg: #f4ecd8;--surface: #fdf6e3;--surface-secondary: #eee8d5;--text: #5b4636;--text-secondary: #839496;--border: #d5beab;--tab-bg: #eee8d5;--primary: #b58900}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg);color:var(--text);height:100vh;display:flex;flex-direction:column;overflow:hidden;transition:background .3s,color .3s}header{height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;background-color:var(--surface);border-bottom:1px solid var(--border);z-index:100}.logo-section{display:flex;align-items:center;gap:10px}.logo-text{font-size:18px;font-weight:600;letter-spacing:-.02em}.logo-icon{width:20px;height:20px;color:var(--primary)}.user-section{display:flex;align-items:center;gap:8px}.header-center{flex:1;display:flex;justify-content:center;min-width:0}.toolbar{display:flex;align-items:center;background-color:var(--surface-secondary);padding:4px;border-radius:var(--radius-md);gap:2px}.toolbar-btn.small-icon{padding:4px}.btn.small{padding:6px 10px;font-size:13px;white-space:nowrap}#auth-buttons{display:flex;align-items:center}#user-info{display:flex;align-items:center;gap:8px}.toolbar-btn{background:none;border:none;padding:6px;border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.toolbar-btn:hover{background-color:var(--border);color:var(--text)}.toolbar-btn i{width:18px;height:18px}.toolbar-sep{width:1px;height:20px;background-color:var(--border);margin:0 4px}.app-sub-header{height:48px;display:flex;align-items:center;padding:0 20px;background-color:var(--surface);border-bottom:1px solid var(--border);gap:12px;flex-shrink:0}.sub-header-actions{display:flex;align-items:center;gap:8px}.flex-spacer{flex:1}.tabs-container{display:flex;background-color:var(--surface-secondary);padding:8px 8px 0;gap:4px;overflow-x:auto;scrollbar-width:none}.tabs-container::-webkit-scrollbar{display:none}.tab{display:flex;align-items:center;padding:8px 16px;height:40px;background-color:var(--tab-bg);border-radius:var(--radius-sm) var(--radius-sm) 0 0;cursor:pointer;min-width:140px;max-width:220px;font-size:13px;color:var(--text-secondary);transition:all .2s;border:1px solid transparent;border-bottom:none}.tab.active{background-color:var(--surface);color:var(--text);font-weight:500;border-color:var(--border);box-shadow:0 -2px 8px #00000008}.tab-title{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tab-close{opacity:.3;margin-left:8px;padding:2px;border-radius:50%;display:flex}.tab:hover .tab-close{opacity:.8}.tab-close:hover{background:#0000001a}.tab-unsaved{width:6px;height:6px;background-color:var(--primary);border-radius:50%;margin-right:8px;display:none}.unsaved .tab-unsaved{display:block}main{flex:1;background-color:var(--bg);position:relative;display:flex;flex-direction:column;overflow:hidden}#editor-wrapper{flex:1;background:var(--bg);padding:0;display:flex;flex-direction:column;overflow-y:auto;height:100%}#editor-container{width:100%;background:transparent;min-height:100%;display:flex!important;flex-direction:column!important;position:relative}.ql-toolbar.ql-snow{border:none!important;border-bottom:1px solid var(--border)!important;position:sticky;top:0;z-index:50;background:inherit;flex-shrink:0;width:100%!important;display:block!important}.ql-container.ql-snow{border:none!important;font-size:110%;flex:1 0 auto!important;display:flex!important;flex-direction:column!important;width:100%!important;background:transparent}.ql-editor{padding:60px 15%!important;line-height:1.8;flex:1!important;overflow-y:visible!important;height:auto!important;min-height:100%}.btn{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;cursor:pointer;border:1px solid transparent;transition:all .2s}.btn.small{padding:4px 10px;font-size:12px}.btn.compact{padding:4px 8px;font-size:12px}.btn-primary{background:var(--primary);color:#fff;border-radius:var(--radius-sm);border:none}.btn-primary:hover{opacity:.9}.btn-outline{background:none;border-color:var(--border);color:var(--text);border-radius:var(--radius-sm)}.btn-outline:hover{background:var(--surface-secondary)}.user-section button{flex-shrink:0}.user-avatar{width:30px;height:30px;border-radius:50%;border:1px solid var(--border)}#save-status-container{font-size:13px;font-weight:500;color:var(--text-secondary);transition:color .3s}.status-icon{margin-right:4px}.btn-ghost{background:none;color:var(--text-secondary)}.btn-ghost:hover{color:var(--text);background:var(--surface-secondary)}.modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:none;align-items:center;justify-content:center;z-index:1000}.modal.visible{display:flex}.modal-content{background-color:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);width:90%;max-width:450px;padding:24px;box-shadow:0 20px 50px #0000004d}.modal-content.wide{max-width:650px}.modal-body{max-height:50vh;overflow-y:auto;margin:10px 0;padding-right:5px}.dropdown{position:relative}.dropdown-menu{position:absolute;top:100%;right:0;margin-top:8px;background-color:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-md);display:none;flex-direction:column;min-width:160px;z-index:1000;padding:4px}.dropdown-menu.visible{display:flex!important}.dropdown-header{padding:8px 12px;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);border-bottom:1px solid var(--border);margin-bottom:4px}.document-item{width:100%;padding:8px 12px;text-align:left;background:none;border:none;border-radius:4px;color:var(--text);font-size:13px;cursor:pointer;display:flex;align-items:center;gap:8px}.document-item:hover{background-color:var(--surface-secondary)}.version-item{padding:10px 12px;border-bottom:1px solid var(--border);cursor:pointer;transition:background .2s}.version-item:hover{background-color:var(--surface-secondary)}.version-item:last-child{border-bottom:none}.version-time{font-size:12px;font-weight:600;color:var(--text)}.version-meta{font-size:11px;color:var(--text-secondary)}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;font-size:18px;font-weight:600}.close-btn{background:none;border:none;cursor:pointer;color:var(--text-secondary)}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.settings-section h3{font-size:14px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);margin-bottom:16px;border-bottom:1px solid var(--border);padding-bottom:4px}.setting-item{margin-bottom:20px}.setting-item label{display:block;font-size:13px;margin-bottom:8px}.theme-bubbles{display:flex;gap:10px}.theme-bubble{width:32px;height:32px;border-radius:50%;cursor:pointer;border:2px solid transparent}.theme-bubble.active{border-color:var(--primary)}.theme-bubble.light{background:#fff;border:1px solid #ddd}.theme-bubble.dark{background:#141414}.theme-bubble.sepia{background:#fdf6e3;border:1px solid #d5beab}.modal-footer{margin-top:20px;display:flex;justify-content:flex-end;gap:12px;padding-top:16px;border-top:1px solid var(--border)}.search-panel{position:absolute;top:20px;right:20px;width:300px;padding:16px;border-radius:var(--radius-md);z-index:200;display:none;flex-direction:column;gap:12px}.search-panel.visible{display:flex}.search-header{display:flex;justify-content:space-between;font-size:14px;font-weight:600}.search-input-group input{width:100%;padding:8px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text)}.search-actions{display:grid;grid-template-columns:1fr 1fr 2fr 2fr;gap:4px}footer{height:28px;background:var(--surface);border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 20px;font-size:11px}.status-indicator{display:flex;align-items:center;gap:6px}.status-icon{width:14px;height:14px;color:var(--primary)}.status-icon.spin{animation:spin 2s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media(max-width:768px){.header-center{display:none}.settings-grid{grid-template-columns:1fr}.ql-editor{padding:30px 20px!important}.logo-text{display:none}}[data-theme=dark] .ql-snow .ql-stroke{stroke:#e8eaed}[data-theme=dark] .ql-snow .ql-fill{fill:#e8eaed}[data-theme=dark] .ql-snow .ql-picker{color:#e8eaed}[data-theme=dark] .ql-snow .ql-picker-options{background:#2d2d2d;border-color:#3c4043}[data-theme=sepia] .ql-snow .ql-stroke{stroke:#5b4636}[data-theme=sepia] .ql-snow .ql-fill{fill:#5b4636}[data-theme=sepia] .ql-snow .ql-picker{color:#5b4636}[data-theme=sepia] .ql-snow .ql-picker-options{background:#eee8d5;border-color:#d5beab}