:root{--bg: #11111b;--bg-elevated: #181825;--bg-surface: #1e1e2e;--bg-hover: #313244;--bg-active: #45475a;--text: #cdd6f4;--text-secondary: #a6adc8;--text-muted: #6c7086;--accent: #89b4fa;--accent-hover: #74c7ec;--accent-glow: rgba(137, 180, 250, .35);--border: rgba(137, 180, 250, .1);--border-strong: rgba(137, 180, 250, .2);--green: #a6e3a1;--red: #f38ba8;--yellow: #f9e2af;--orange: #fab387;--sidebar-w: 304px;--font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 16px rgba(0, 0, 0, .3);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .45)}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;font-feature-settings:"cv02","cv03","cv04","cv11";-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{cursor:pointer;border:1px solid transparent;background:var(--bg-surface);color:var(--text);padding:7px 13px;border-radius:8px;font-size:12.5px;font-weight:500;font-family:inherit;transition:all .15s ease;letter-spacing:-.01em}button:hover{background:var(--bg-hover);border-color:var(--border)}button:active{transform:translateY(1px)}button.primary{background:linear-gradient(180deg,#89b4fa,#74c7ec);color:var(--bg);box-shadow:0 1px #ffffff26 inset,var(--shadow-sm);font-weight:600}button.primary:hover{filter:brightness(1.1);box-shadow:0 1px #ffffff26 inset,0 4px 16px var(--accent-glow)}button.danger{background:var(--red);color:var(--bg)}input,textarea{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:8px 12px;font-size:13px;outline:none;font-family:inherit;transition:border-color .15s,box-shadow .15s}input::placeholder{color:var(--text-muted)}input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}textarea{font-family:var(--font-mono);resize:vertical;-moz-tab-size:4;tab-size:4;line-height:1.6}.layout{display:flex;height:100%}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--bg-elevated);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.sidebar-header{padding:16px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}.sidebar-header h1{font-size:15px;font-weight:700;color:var(--accent);letter-spacing:-.02em}.sidebar-search{padding:10px 14px 6px}.sidebar-search input{width:100%;font-size:12.5px;padding:7px 11px}.file-tree{flex:1;overflow-y:auto;padding:6px 0 16px}.tree-folder{display:flex;align-items:center;gap:6px;padding:5px 14px;font-size:12.5px;font-weight:600;color:var(--text);-webkit-user-select:none;user-select:none;letter-spacing:-.005em;position:relative;transition:background .1s}.tree-folder:hover{background:var(--bg-hover)}.tree-folder.folder-active{background:linear-gradient(90deg,var(--accent-glow) 0%,transparent 100%);color:var(--accent)}.tree-folder-toggle{width:16px;height:16px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-muted);flex-shrink:0}.tree-folder-toggle:hover{color:var(--text)}.tree-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tree-count{font-size:11px;color:var(--text-muted);font-weight:400;flex-shrink:0;opacity:.6}.tree-graph-btn{opacity:0;padding:2px 4px;border-radius:4px;background:transparent;color:var(--text-muted);flex-shrink:0;transition:opacity .15s}.tree-folder:hover .tree-graph-btn{opacity:1}.tree-graph-btn:hover{background:var(--bg-hover);color:var(--accent)}.tree-file{display:flex;align-items:center;padding:4px 14px;gap:6px;font-size:12px;color:var(--text-muted);cursor:pointer;transition:all .1s;position:relative}.tree-file:hover{background:var(--bg-hover);color:var(--text)}.tree-file.active{background:linear-gradient(90deg,var(--accent-glow) 0%,transparent 100%);color:var(--accent);font-weight:500}.tree-file.active:before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:2px;border-radius:2px;background:var(--accent)}.tree-file .tree-label{font-weight:400}.file-tree-item{display:flex;align-items:center;padding:5px 16px;cursor:pointer;gap:6px;font-size:13px;color:var(--text-muted);transition:all .1s}.file-tree-item:hover{background:var(--bg-hover);color:var(--text)}.file-tree-item.active{background:var(--bg-hover);color:var(--accent)}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden}.toolbar{display:flex;align-items:center;gap:8px;padding:10px 18px;border-bottom:1px solid var(--border);background:var(--bg-elevated);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.toolbar .path{font-size:12.5px;color:var(--text-secondary);flex:1;font-family:var(--font-mono);letter-spacing:-.01em}.editor-area{flex:1;display:flex;flex-direction:column;padding:24px 32px;overflow-y:auto}.editor-area textarea{flex:1;min-height:300px;font-size:14px;line-height:1.7;border-radius:10px;background:var(--bg-elevated)}.preview-area{flex:1;padding:32px 48px;overflow-y:auto;line-height:1.75;max-width:880px;margin:0 auto;width:100%}.preview-area h1{font-size:28px;margin:20px 0 12px;color:var(--accent);font-weight:700;letter-spacing:-.02em}.preview-area h2{font-size:22px;margin:18px 0 8px;font-weight:600;letter-spacing:-.015em}.preview-area h3{font-size:18px;margin:14px 0 6px;font-weight:600}.preview-area p{margin:8px 0}.preview-area code{background:var(--bg-surface);padding:2px 6px;border-radius:4px;font-family:var(--font-mono);font-size:13px}.preview-area pre{background:var(--bg-surface);padding:16px;border-radius:8px;overflow-x:auto;margin:12px 0}.preview-area pre code{background:none;padding:0}.preview-area ul,.preview-area ol{padding-left:24px;margin:8px 0}.preview-area blockquote{border-left:3px solid var(--accent);padding-left:16px;color:var(--text-muted);margin:12px 0}.preview-area a{color:var(--accent);text-decoration:none}.preview-area a:hover{text-decoration:underline}.login-container{display:flex;align-items:center;justify-content:center;height:100%;background:radial-gradient(ellipse at 30% 20%,rgba(137,180,250,.08) 0%,transparent 50%),radial-gradient(ellipse at 70% 80%,rgba(245,194,231,.06) 0%,transparent 50%),var(--bg)}.login-box{background:var(--bg-surface);border:1px solid var(--border-strong);border-radius:16px;padding:36px 32px;width:360px;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}.login-box:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.4}.login-box h2{text-align:center;margin-bottom:24px;color:var(--accent);font-size:22px;font-weight:700;letter-spacing:-.02em}.login-box input{width:100%;margin-bottom:12px}.login-box button{width:100%;margin-top:4px}.login-error{color:var(--red);font-size:13px;text-align:center;margin-top:8px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-muted);gap:12px}.empty-state svg{opacity:.3}.sidebar-actions{padding:8px 14px 12px;display:flex;gap:6px;border-bottom:1px solid var(--border)}.sidebar-actions button{flex:1;font-size:12px;padding:7px 10px;display:flex;align-items:center;justify-content:center;gap:4px}.search-results{padding:24px 32px;max-width:880px;margin:0 auto;width:100%}.search-results h3{margin-bottom:16px;color:var(--text-muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em;font-weight:600}.search-result-item{padding:12px 16px;border-radius:10px;cursor:pointer;margin-bottom:6px;border:1px solid transparent;transition:all .15s ease}.search-result-item:hover{background:var(--bg-elevated);border-color:var(--border-strong);transform:translateY(-1px)}.search-result-item .name{font-weight:600;margin-bottom:6px;color:var(--text)}.search-result-item .snippet{font-size:12px;color:var(--text-muted);line-height:1.5}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:var(--bg-hover);border-radius:8px;border:2px solid transparent;background-clip:padding-box}::-webkit-scrollbar-thumb:hover{background:var(--bg-active);background-clip:padding-box;border:2px solid transparent}select{font-family:inherit}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}