:root{--bg: #1e1e1e;--bg-alt: #252526;--bg-elev: #2d2d30;--border: #3c3c3c;--text: #d4d4d4;--muted: #858585;--accent: #0e639c;--accent-hover: #1177bb;--active: #094771;--danger: #a1260d;font-family:-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text)}.mono{font-family:Cascadia Code,Fira Code,Consolas,Courier New,monospace}.center{height:100%;display:flex;align-items:center;justify-content:center}.muted{color:var(--muted)}.pad{padding:16px}.login-card{display:flex;flex-direction:column;gap:12px;width:300px;padding:32px;background:var(--bg-alt);border:1px solid var(--border);border-radius:8px}.login-card h1{margin:0 0 8px;font-size:20px;text-align:center}.error{color:#f48771;font-size:13px}.app{height:100%;display:flex;flex-direction:column}.topbar{display:flex;justify-content:space-between;align-items:center;background:var(--bg-elev);border-bottom:1px solid var(--border);padding:0 12px;height:44px;flex:0 0 auto}.tabs{display:flex;gap:4px}.tab{background:transparent;border:none;color:var(--muted);padding:8px 16px;cursor:pointer;border-radius:6px;font-size:14px}.tab.active{background:var(--active);color:#fff}.content{flex:1 1 auto;min-height:0}.split{display:flex;height:100%}.notes .note-list{width:280px;border-right:1px solid var(--border);overflow-y:auto;padding:8px;flex:0 0 auto}.sidebar{width:240px;border-right:1px solid var(--border);overflow-y:auto;padding:8px;flex:0 0 auto;display:flex;flex-direction:column;gap:8px}.editor-pane{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}.btn{background:var(--bg-elev);border:1px solid var(--border);color:var(--text);padding:6px 12px;border-radius:6px;cursor:pointer;font-size:13px}.btn:hover{background:var(--border)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent-hover)}.btn.active{background:var(--active);border-color:var(--accent);color:#fff}.btn.ghost{background:transparent}.btn.full{width:100%;margin-bottom:8px}.icon-btn{background:transparent;border:none;color:var(--muted);cursor:pointer;font-size:12px;padding:2px 4px;border-radius:4px}.icon-btn:hover{color:#fff;background:var(--danger)}input,select,textarea{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:7px 10px;border-radius:6px;font-size:13px;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--accent)}.search{width:100%}.side-section{display:flex;flex-direction:column;gap:4px}.side-head{display:flex;justify-content:space-between;align-items:center;font-size:11px;text-transform:uppercase;color:var(--muted);letter-spacing:.5px;padding:4px 2px}.chip{display:flex;justify-content:space-between;align-items:center;padding:6px 10px;border-radius:6px;cursor:pointer;font-size:13px}.chip:hover{background:var(--bg-elev)}.chip.active{background:var(--active);color:#fff}.tag-wrap{display:flex;flex-wrap:wrap;gap:6px}.tag{display:inline-flex;align-items:center;gap:4px;border:1px solid var(--border);border-radius:12px;padding:3px 10px;font-size:12px;cursor:pointer}.tag.active{background:var(--active);color:#fff}.note-card{padding:10px;border-radius:6px;cursor:pointer;border:1px solid transparent;margin-bottom:4px}.note-card:hover{background:var(--bg-alt)}.note-card.active{background:var(--bg-alt);border-color:var(--accent)}.note-card-title{font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.note-card-preview{font-size:12px;color:var(--muted);margin:4px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.note-card-tags,.mini-tag{display:flex;gap:4px;flex-wrap:wrap}.mini-tag{display:inline-block;font-size:10px;color:#fff;padding:1px 6px;border-radius:8px}.editor-toolbar{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid var(--border);flex-wrap:wrap}.title-input{flex:1 1 160px;font-size:15px;font-weight:500}.save-state{font-size:12px;color:var(--muted);min-width:66px;text-align:right}.note-tag-row{display:flex;gap:6px;flex-wrap:wrap;padding:8px 12px;border-bottom:1px solid var(--border)}.note-editor{flex:1 1 auto;resize:none;border:none;border-radius:0;padding:16px;font-family:Cascadia Code,Fira Code,Consolas,monospace;font-size:14px;line-height:1.6}.md-preview{flex:1 1 auto;overflow-y:auto;padding:16px 24px;line-height:1.6}.md-preview pre{background:var(--bg-alt);padding:12px;border-radius:6px;overflow-x:auto}.md-preview code{font-family:Cascadia Code,Consolas,monospace}.md-preview a{color:#4daafc}.list{display:flex;flex-direction:column;gap:2px}.list-item{display:flex;flex-direction:column;padding:8px 10px;border-radius:6px;cursor:pointer;position:relative}.list-item:hover{background:var(--bg-alt)}.list-item.active{background:var(--active);color:#fff}.list-item-title{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding-right:18px}.lang-badge{font-size:10px;color:var(--muted);text-transform:uppercase}.list-item .icon-btn{position:absolute;right:6px;top:6px}.wrap-toggle{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--muted)}.wrap-toggle input{width:auto}.cm-host{flex:1 1 auto;min-height:0;overflow:hidden}.cm-host .cm-editor{height:100%}.cm-host .cm-scroller{overflow:auto}