:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;--sidebar-w: 280px;--toolbar-h: 48px;--accent: #6c63ff;--accent-hover: #7b73ff;--bg: #0f0f0f;--bg-surface: #161616;--bg-surface-hover: #1e1e1e;--bg-editor: #111111;--border: rgba(255, 255, 255, .08);--text: #e8e8e8;--text-secondary: rgba(255, 255, 255, .5);--text-tertiary: rgba(255, 255, 255, .3);--danger: #e74c3c;--danger-hover: #c0392b}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;background:var(--bg);color:var(--text)}.app{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--bg-surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.sidebar-header{padding:16px;border-bottom:1px solid var(--border)}.sidebar-header h1{font-size:1.1rem;font-weight:700;letter-spacing:-.02em;margin-bottom:12px;display:flex;align-items:center;gap:8px}.sidebar-header h1 svg{width:20px;height:20px;color:var(--accent)}.search-box{width:100%;padding:8px 12px;background:#ffffff0a;border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:.85rem;outline:none;transition:border-color .15s}.search-box:focus{border-color:var(--accent)}.search-box::placeholder{color:var(--text-tertiary)}.note-list{flex:1;overflow-y:auto;padding:8px}.note-list::-webkit-scrollbar{width:4px}.note-list::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:2px}.note-item{padding:12px;border-radius:6px;cursor:pointer;transition:background .12s;margin-bottom:2px;position:relative}.note-item:hover{background:var(--bg-surface-hover)}.note-item.active{background:#6c63ff1f;border:1px solid rgba(108,99,255,.25)}.note-item-title{font-size:.88rem;font-weight:600;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text)}.note-item-preview{font-size:.78rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.note-item-date{font-size:.7rem;color:var(--text-tertiary);margin-top:4px}.sidebar-footer{padding:12px;border-top:1px solid var(--border)}.btn-new-note{width:100%;padding:10px;background:var(--accent);color:#fff;border:none;border-radius:6px;font-size:.85rem;font-weight:600;cursor:pointer;transition:background .15s;display:flex;align-items:center;justify-content:center;gap:6px}.btn-new-note:hover{background:var(--accent-hover)}.editor-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.editor-toolbar{height:var(--toolbar-h);padding:0 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:4px;flex-shrink:0}.toolbar-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:none;border:none;color:var(--text-secondary);border-radius:4px;cursor:pointer;transition:all .12s;font-size:.85rem;font-weight:700}.toolbar-btn:hover{background:#ffffff0f;color:var(--text)}.toolbar-btn.active{background:#6c63ff26;color:var(--accent)}.toolbar-separator{width:1px;height:20px;background:var(--border);margin:0 4px}.toolbar-right{margin-left:auto;display:flex;align-items:center;gap:4px}.toolbar-btn.danger:hover{background:#e74c3c26;color:var(--danger)}.title-input{padding:16px 24px 8px;font-size:1.5rem;font-weight:700;background:none;border:none;color:var(--text);outline:none;width:100%;letter-spacing:-.02em}.title-input::placeholder{color:var(--text-tertiary)}.editor-content{flex:1;padding:8px 24px 24px;overflow-y:auto;font-size:.95rem;line-height:1.7;color:#ffffffd9}.editor-content::-webkit-scrollbar{width:6px}.editor-content::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}.editor-content:focus{outline:none}.editor-content:empty:before{content:attr(data-placeholder);color:var(--text-tertiary);pointer-events:none}.editor-content p{margin-bottom:.5em}.editor-content h1{font-size:1.6rem;font-weight:700;margin:.8em 0 .4em}.editor-content h2{font-size:1.3rem;font-weight:600;margin:.8em 0 .4em}.editor-content ul,.editor-content ol{margin-left:1.5em;margin-bottom:.5em}.editor-content blockquote{border-left:3px solid var(--accent);padding-left:12px;margin:.5em 0;color:var(--text-secondary)}.editor-content code{background:#ffffff0f;padding:2px 6px;border-radius:3px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88em}.editor-content pre{background:#ffffff0a;padding:12px 16px;border-radius:6px;overflow-x:auto;margin:.5em 0}.editor-content pre code{background:none;padding:0}.editor-content a{color:var(--accent);text-decoration:none}.editor-content a:hover{text-decoration:underline}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-tertiary);gap:12px}.empty-state svg{width:48px;height:48px;opacity:.3}.empty-state p{font-size:.9rem}.word-count{font-size:.72rem;color:var(--text-tertiary);padding:6px 16px;border-top:1px solid var(--border);text-align:right}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:var(--bg-surface);border:1px solid var(--border);border-radius:10px;padding:24px;max-width:360px;width:90%}.modal h3{font-size:1rem;margin-bottom:8px}.modal p{font-size:.88rem;color:var(--text-secondary);margin-bottom:20px}.modal-actions{display:flex;gap:8px;justify-content:flex-end}.modal-actions button{padding:8px 16px;border-radius:6px;border:none;font-size:.85rem;font-weight:600;cursor:pointer;transition:background .12s}.btn-cancel{background:#ffffff0f;color:var(--text)}.btn-cancel:hover{background:#ffffff1a}.btn-delete{background:var(--danger);color:#fff}.btn-delete:hover{background:var(--danger-hover)}@media(max-width:640px){.sidebar{width:100%;position:absolute;z-index:10;height:100%}.sidebar.hidden{display:none}.mobile-toggle{display:flex}}@media(min-width:641px){.mobile-toggle{display:none}}