:root{--bg-primary: #faf8f5;--bg-secondary: #f5f2eb;--bg-tertiary: #ebe7de;--bg-hover: #e5e0d5;--bg-active: #ddd8cc;--text-primary: #1a1814;--text-secondary: #5c5648;--text-muted: #9c9486;--border-color: #e0dcd2;--border-light: #d4cfc4;--accent-primary: #c4a35a;--accent-hover: #b08d4a;--accent-subtle: #f0e8d8;--danger-color: #c75450;--success-color: #5a9c6b;--sidebar-width: 260px;--list-width: 340px;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 10px;--font-serif: "Libre Baskerville", "Georgia", serif;--font-sans: "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--shadow-sm: 0 1px 2px rgba(26, 24, 20, .05);--shadow-md: 0 4px 12px rgba(26, 24, 20, .08);--shadow-lg: 0 8px 24px rgba(26, 24, 20, .12)}[data-theme=dark]{--bg-primary: #1a1814;--bg-secondary: #242119;--bg-tertiary: #2e2921;--bg-hover: #38322a;--bg-active: #443e33;--text-primary: #f5f2eb;--text-secondary: #b8b2a4;--text-muted: #7a7568;--border-color: #38322a;--border-light: #4a433a;--accent-primary: #d4b76a;--accent-hover: #e4c77a;--accent-subtle: #3a3428;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 12px rgba(0, 0, 0, .25);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .3)}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app.loading{display:flex;align-items:center;justify-content:center;height:100vh}.loader{width:36px;height:36px;border:2px solid var(--border-color);border-top-color:var(--accent-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.app{display:flex;height:100%;overflow:hidden}.sidebar{width:var(--sidebar-width);background-color:var(--bg-secondary);border-right:1px solid var(--border-color);display:flex;flex-direction:column;flex-shrink:0}.sidebar-header{padding:24px 20px;border-bottom:1px solid var(--border-color)}.app-logo{display:flex;align-items:center;gap:12px}.app-logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-hover));border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:var(--shadow-sm)}.app-logo-text{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--text-primary);letter-spacing:-.5px}.sidebar-nav{flex:1;overflow-y:auto;padding:20px 12px}.nav-section{margin-bottom:28px}.nav-section-header{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted)}.icon-btn{display:flex;align-items:center;justify-content:center;width:24px;height:24px;background:none;border:none;color:var(--text-muted);cursor:pointer;border-radius:var(--radius-sm);transition:all .15s ease}.icon-btn:hover{background-color:var(--bg-hover);color:var(--text-primary)}.add-input{display:flex;gap:8px;padding:8px 12px}.add-input input{flex:1;padding:8px 12px;background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:13px;font-family:var(--font-sans)}.add-input input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-subtle)}.add-input button{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background-color:var(--accent-primary);border:none;border-radius:var(--radius-md);color:#fff;cursor:pointer;transition:all .15s ease}.add-input button:hover{background-color:var(--accent-hover);transform:scale(1.05)}.nav-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;background:none;border:none;border-radius:var(--radius-md);color:var(--text-secondary);font-size:14px;cursor:pointer;transition:all .15s ease;text-align:left;font-family:var(--font-sans)}.nav-item:hover{background-color:var(--bg-hover);color:var(--text-primary)}.nav-item.active{background-color:var(--accent-subtle);color:var(--text-primary);font-weight:500}.nav-item-count{margin-left:auto;font-size:11px;color:var(--text-muted);background-color:var(--bg-tertiary);padding:2px 8px;border-radius:10px}.tag-list{display:flex;flex-wrap:wrap;gap:8px;padding:8px 12px}.tag-chip{display:flex;align-items:center;gap:6px;padding:5px 12px;background-color:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:20px;font-size:12px;color:var(--text-secondary);cursor:pointer;transition:all .15s ease}.tag-chip:hover{background-color:var(--bg-hover);border-color:var(--border-light)}.tag-dot{width:8px;height:8px;border-radius:50%}.sidebar-footer{padding:16px 20px;border-top:1px solid var(--border-color)}.quota-display{display:flex;align-items:center;justify-content:space-between;padding:12px;background-color:var(--bg-tertiary);border-radius:var(--radius-md);margin-bottom:12px}.quota-info{font-size:12px;color:var(--text-secondary)}.quota-count{font-weight:600;color:var(--text-primary)}.quota-bar{height:4px;background-color:var(--bg-hover);border-radius:2px;overflow:hidden;margin-top:8px}.quota-progress{height:100%;background:linear-gradient(90deg,var(--accent-primary),var(--accent-hover));border-radius:2px;transition:width .3s ease}.upgrade-link{display:block;text-align:center;padding:10px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-hover));border-radius:var(--radius-md);color:#fff;font-size:13px;font-weight:600;text-decoration:none;transition:all .15s ease}.upgrade-link:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}.main-content{flex:1;display:flex;overflow:hidden}.note-list-panel{width:var(--list-width);background-color:var(--bg-secondary);border-right:1px solid var(--border-color);display:flex;flex-direction:column;flex-shrink:0}.search-bar{display:flex;align-items:center;gap:12px;padding:16px;border-bottom:1px solid var(--border-color)}.search-input-wrapper{flex:1;position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:14px;color:var(--text-muted);pointer-events:none}.search-input{width:100%;padding:12px 14px 12px 42px;background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:14px;font-family:var(--font-sans);transition:all .15s ease}.search-input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-subtle)}.search-input::placeholder{color:var(--text-muted)}.create-btn{display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-hover));border:none;border-radius:var(--radius-md);color:#fff;cursor:pointer;transition:all .15s ease;box-shadow:var(--shadow-sm)}.create-btn:hover{transform:scale(1.05);box-shadow:var(--shadow-md)}.note-list{flex:1;overflow-y:auto;padding:8px}.note-list-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-muted);gap:12px;padding:40px;text-align:center}.note-list-empty svg{opacity:.3}.note-item{padding:16px;margin-bottom:8px;background-color:transparent;border-radius:var(--radius-md);cursor:pointer;transition:all .15s ease;border:1px solid transparent}.note-item:hover{background-color:var(--bg-hover)}.note-item.selected{background-color:var(--accent-subtle);border-color:var(--border-light)}.note-item-header{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;margin-bottom:8px}.note-title{font-size:15px;font-weight:600;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.note-delete{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:none;border:none;color:var(--text-muted);cursor:pointer;border-radius:var(--radius-sm);opacity:0;transition:all .15s ease}.note-item:hover .note-delete{opacity:1}.note-delete:hover{background-color:var(--danger-color);color:#fff}.note-preview{font-size:13px;color:var(--text-secondary);line-height:1.5;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.note-meta{display:flex;align-items:center;justify-content:space-between}.note-date{font-size:11px;color:var(--text-muted)}.note-tags{display:flex;gap:4px}.note-tag{padding:2px 8px;background-color:var(--bg-tertiary);border-radius:10px;font-size:10px;color:var(--text-secondary)}.editor-panel{flex:1;display:flex;flex-direction:column;background-color:var(--bg-primary);overflow:hidden}.editor-toolbar{display:flex;align-items:center;gap:8px;padding:12px 24px;border-bottom:1px solid var(--border-color);background-color:var(--bg-secondary)}.toolbar-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:none;border:1px solid transparent;border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;transition:all .15s ease}.toolbar-btn:hover{background-color:var(--bg-hover);color:var(--text-primary)}.toolbar-btn.active{background-color:var(--accent-subtle);border-color:var(--accent-primary);color:var(--accent-primary)}.toolbar-divider{width:1px;height:20px;background-color:var(--border-color);margin:0 4px}.note-editor{flex:1;display:flex;flex-direction:column;overflow:hidden}.editor-header{display:flex;align-items:center;justify-content:space-between;padding:24px 24px 16px;border-bottom:1px solid var(--border-color)}.title-input{flex:1;padding:8px 0;background:none;border:none;color:var(--text-primary);font-family:var(--font-serif);font-size:28px;font-weight:700;letter-spacing:-.5px}.title-input:focus{outline:none}.title-input::placeholder{color:var(--text-muted)}.timestamp{font-size:12px;color:var(--text-muted);white-space:nowrap;margin-left:16px;font-family:var(--font-mono)}.editor-tags{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:16px 24px;position:relative}.tag-badge{display:flex;align-items:center;gap:6px;padding:5px 12px;border:1px solid;border-radius:20px;font-size:12px}.tag-remove{display:flex;align-items:center;justify-content:center;background:none;border:none;color:inherit;cursor:pointer;padding:0;opacity:.6}.tag-remove:hover{opacity:1}.add-tag-btn{display:flex;align-items:center;gap:4px;padding:5px 12px;background:none;border:1px dashed var(--border-light);border-radius:20px;color:var(--text-muted);font-size:12px;cursor:pointer;transition:all .15s ease}.add-tag-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.tag-picker{position:absolute;top:100%;left:24px;padding:8px;background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:100;min-width:180px}.tag-option{display:flex;align-items:center;gap:10px;width:100%;padding:10px 14px;background:none;border:none;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:13px;cursor:pointer;text-align:left;font-family:var(--font-sans);transition:all .1s ease}.tag-option:hover{background-color:var(--bg-hover);color:var(--text-primary)}.tag-option.selected{background-color:var(--accent-subtle);color:var(--text-primary)}.no-tags{padding:12px 14px;font-size:12px;color:var(--text-muted);text-align:center}.editor-content{flex:1;padding:20px 24px;overflow-y:auto}.content-textarea{width:100%;min-height:400px;padding:0;background:none;border:none;color:var(--text-primary);font-size:16px;line-height:1.8;resize:none;font-family:var(--font-sans)}.content-textarea:focus{outline:none}.content-textarea::placeholder{color:var(--text-muted)}.markdown-preview{font-size:16px;line-height:1.8;color:var(--text-primary)}.markdown-preview h1{font-family:var(--font-serif);font-size:32px;font-weight:700;margin:24px 0 16px;letter-spacing:-.5px}.markdown-preview h2{font-family:var(--font-serif);font-size:24px;font-weight:600;margin:20px 0 12px}.markdown-preview h3{font-family:var(--font-serif);font-size:20px;font-weight:600;margin:16px 0 10px}.markdown-preview p{margin:12px 0}.markdown-preview ul,.markdown-preview ol{margin:12px 0;padding-left:24px}.markdown-preview li{margin:6px 0}.markdown-preview code{font-family:var(--font-mono);font-size:14px;background-color:var(--bg-tertiary);padding:2px 6px;border-radius:4px}.markdown-preview pre{background-color:var(--bg-tertiary);padding:16px;border-radius:var(--radius-md);overflow-x:auto;margin:16px 0}.markdown-preview pre code{background:none;padding:0}.markdown-preview blockquote{border-left:3px solid var(--accent-primary);padding-left:16px;margin:16px 0;color:var(--text-secondary);font-style:italic}.markdown-preview a{color:var(--accent-primary);text-decoration:none}.markdown-preview a:hover{text-decoration:underline}.markdown-preview hr{border:none;height:1px;background-color:var(--border-color);margin:24px 0}.markdown-preview table{width:100%;border-collapse:collapse;margin:16px 0}.markdown-preview th,.markdown-preview td{padding:10px 12px;border:1px solid var(--border-color);text-align:left}.markdown-preview th{background-color:var(--bg-tertiary);font-weight:600}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-muted);text-align:center;padding:40px}.empty-icon{margin-bottom:24px;opacity:.2}.empty-icon svg{width:80px;height:80px}.empty-state h2{font-family:var(--font-serif);font-size:22px;font-weight:600;color:var(--text-secondary);margin-bottom:8px}.empty-state p{font-size:14px;margin-bottom:28px}.btn-primary{padding:14px 28px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-hover));border:none;border-radius:var(--radius-md);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:all .15s ease;box-shadow:var(--shadow-sm)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background-color:var(--border-light);border-radius:4px}::-webkit-scrollbar-thumb:hover{background-color:var(--text-muted)}@media(max-width:900px){.sidebar{position:fixed;left:-100%;z-index:1000;transition:left .3s ease;height:100%}.sidebar.open{left:0}.note-list-panel{width:100%;border-right:none}.editor-panel{display:none}.editor-panel.active{display:flex;position:fixed;inset:0;z-index:999}}.pwa-banner{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:16px 20px;display:flex;align-items:center;gap:16px;box-shadow:var(--shadow-lg);z-index:1000}.pwa-banner p{font-size:14px;color:var(--text-secondary)}.pwa-banner button{padding:8px 16px;background-color:var(--accent-primary);border:none;border-radius:var(--radius-sm);color:#fff;font-size:13px;font-weight:600;cursor:pointer}.pwa-banner .close-btn{background:none;color:var(--text-muted);padding:4px}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.note-item{animation:fadeIn .2s ease}@keyframes slideIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}.sidebar-header{animation:slideIn .3s ease}