:root{--bg: #0f172a;--bg-card: #1e293b;--bg-card-hover: #334155;--bg-input: #0f172a;--text: #f1f5f9;--text-muted: #94a3b8;--text-dim: #64748b;--accent: #6366f1;--accent-light: #818cf8;--green: #22c55e;--green-bg: rgba(34, 197, 94, .12);--yellow: #eab308;--yellow-bg: rgba(234, 179, 8, .12);--red: #ef4444;--red-bg: rgba(239, 68, 68, .12);--border: #334155;--radius: 12px;--radius-sm: 8px;--sidebar-width: 240px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh}input,button,select,textarea{font-family:inherit;font-size:inherit}a{color:var(--accent-light);text-decoration:none}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--bg-card);border-right:1px solid var(--border);padding:24px 0;position:fixed;top:0;left:0;bottom:0;overflow-y:auto;display:flex;flex-direction:column}.sidebar-brand{padding:0 20px 24px;border-bottom:1px solid var(--border);margin-bottom:8px}.sidebar-brand h1{font-size:18px;font-weight:700}.sidebar-brand p{font-size:12px;color:var(--text-dim);margin-top:2px}.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:2px;padding:0 8px}.sidebar-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;border:none;background:none;width:100%;text-align:left;font-size:14px;transition:background .15s,color .15s}.sidebar-item:hover{background:var(--bg-card-hover);color:var(--text)}.sidebar-item.active{background:var(--accent);color:#fff}.sidebar-item svg{width:18px;height:18px;flex-shrink:0}.sidebar-section{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-dim);padding:16px 12px 6px}.sidebar-footer{padding:16px 20px;border-top:1px solid var(--border);margin-top:auto}.main-content{flex:1;margin-left:var(--sidebar-width);padding:32px 40px;max-width:1200px}.page-header{margin-bottom:28px}.page-title{font-size:24px;font-weight:700;margin-bottom:4px}.page-subtitle{font-size:14px;color:var(--text-muted)}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.card-title{font-weight:600;font-size:15px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.stat-value{font-size:32px;font-weight:700;line-height:1.1}.stat-value.green{color:var(--green)}.stat-value.yellow{color:var(--yellow)}.stat-value.red{color:var(--red)}.stat-label{font-size:13px;color:var(--text-muted);margin-top:4px}.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:20px;font-size:12px;font-weight:600}.badge-green{background:var(--green-bg);color:var(--green)}.badge-yellow{background:var(--yellow-bg);color:var(--yellow)}.badge-red{background:var(--red-bg);color:var(--red)}.badge-muted{background:#64748b26;color:var(--text-dim)}.dot{width:6px;height:6px;border-radius:50%;background:currentColor}.data-table{width:100%;border-collapse:collapse;font-size:14px}.data-table th{text-align:left;font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-dim);padding:10px 12px;border-bottom:1px solid var(--border);cursor:pointer;-webkit-user-select:none;user-select:none}.data-table th:hover{color:var(--text-muted)}.data-table td{padding:12px;border-bottom:1px solid var(--border);color:var(--text-muted)}.data-table tr:hover td{background:#ffffff05}.data-table .mono{font-family:SF Mono,Fira 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20px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;border:none;transition:background .15s,opacity .15s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-light)}.btn-ghost{background:transparent;color:var(--text-muted);border:1px solid var(--border)}.btn-ghost:hover:not(:disabled){background:var(--bg-card-hover);color:var(--text)}.btn-danger{background:var(--red-bg);color:var(--red)}.btn-danger:hover:not(:disabled){background:#ef444433}.btn-sm{padding:6px 12px;font-size:13px}.btn-row{display:flex;gap:8px;margin-top:16px}.alert{padding:12px 16px;border-radius:var(--radius-sm);font-size:14px;margin-bottom:16px}.alert-error{background:var(--red-bg);color:var(--red)}.alert-success{background:var(--green-bg);color:var(--green)}.alert-info{background:#6366f11f;color:var(--accent-light)}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px}.login-card{width:100%;max-width:400px}.login-card h1{font-size:24px;font-weight:700;margin-bottom:4px;text-align:center}.login-card .subtitle{text-align:center;color:var(--text-muted);font-size:14px;margin-bottom:32px}.empty-state{text-align:center;padding:48px 24px;color:var(--text-dim)}.empty-state p{font-size:14px;margin-top:8px}.loading{display:flex;align-items:center;justify-content:center;padding:48px;color:var(--text-dim)}.tree-item{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid var(--border);font-size:14px}.tree-item:hover{background:#ffffff05}.tree-indent{width:24px;display:inline-block}.code-block{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 16px;font-family:SF Mono,Fira Code,monospace;font-size:13px;color:var(--accent-light);overflow-x:auto;margin:8px 0}@media(max-width:768px){.sidebar{display:none}.main-content{margin-left:0;padding:16px}.stat-grid{grid-template-columns:1fr 1fr}.chat-panel{left:8px;right:8px;bottom:8px;width:auto;height:70vh}}.chat-fab{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:var(--accent);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px #6366f166;transition:transform .15s,box-shadow .15s;z-index:1000}.chat-fab:hover{transform:scale(1.08);box-shadow:0 6px 24px #6366f180}.chat-fab svg{width:24px;height:24px}.chat-panel{position:fixed;bottom:24px;right:24px;width:400px;height:560px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);display:flex;flex-direction:column;box-shadow:0 8px 40px #00000080;z-index:1000;overflow:hidden}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-card-hover);border-bottom:1px solid var(--border);flex-shrink:0}.chat-header-title{display:flex;align-items:center;gap:8px;font-weight:600;font-size:14px;color:var(--text)}.chat-header-title svg{color:var(--accent-light)}.chat-close{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;justify-content:center}.chat-close:hover{color:var(--text);background:var(--bg-input)}.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.chat-welcome{color:var(--text-muted);font-size:13px;line-height:1.6;padding:8px 0}.chat-welcome p{margin-bottom:8px}.chat-welcome strong{color:var(--accent-light)}.chat-welcome ul{list-style:none;padding:0}.chat-welcome li{padding:6px 10px;background:var(--bg-input);border-radius:var(--radius-sm);margin-bottom:4px;font-size:12px;color:var(--text-dim)}.chat-message{max-width:85%;padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;line-height:1.5;word-wrap:break-word}.chat-message code{background:#0000004d;padding:1px 5px;border-radius:3px;font-size:12px}.chat-message ul{margin:4px 0;padding-left:16px}.chat-message li{margin-bottom:2px}.chat-message-user{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:2px}.chat-message-assistant{align-self:flex-start;background:var(--bg-card-hover);color:var(--text);border-bottom-left-radius:2px}.chat-message-error{background:var(--red-bg);color:var(--red)}.chat-input-area{display:flex;align-items:center;gap:8px;padding:12px 16px;border-top:1px solid var(--border);background:var(--bg-card);flex-shrink:0}.chat-input{flex:1;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);padding:8px 12px;font-size:13px;outline:none;font-family:inherit}.chat-input:focus{border-color:var(--accent)}.chat-input::placeholder{color:var(--text-dim)}.chat-input:disabled{opacity:.5}.chat-send{background:var(--accent);border:none;color:#fff;width:36px;height:36px;border-radius:var(--radius-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:opacity .15s}.chat-send:hover{opacity:.85}.chat-send:disabled{opacity:.3;cursor:not-allowed}.chat-typing{display:flex;gap:4px;align-items:center;padding:4px 0}.chat-typing span{width:6px;height:6px;border-radius:50%;background:var(--text-muted);animation:chat-bounce 1.4s infinite ease-in-out both}.chat-typing span:nth-child(1){animation-delay:0s}.chat-typing span:nth-child(2){animation-delay:.16s}.chat-typing span:nth-child(3){animation-delay:.32s}@keyframes chat-bounce{0%,80%,to{transform:scale(.6);opacity:.4}40%{transform:scale(1);opacity:1}}