:root{--color-bg: #f6f7fb;--color-surface: #ffffff;--color-surface-2: #f9fafb;--color-border: #e5e7eb;--color-border-strong: #d1d5db;--color-text: #0f172a;--color-text-muted: #64748b;--color-text-subtle: #94a3b8;--color-text-inverse: #f8fafc;--color-primary: #4f46e5;--color-primary-hover: #4338ca;--color-primary-soft: #eef2ff;--color-primary-text: #ffffff;--color-success: #16a34a;--color-success-soft: #dcfce7;--color-warning: #d97706;--color-warning-soft: #fef3c7;--color-danger: #dc2626;--color-danger-hover: #b91c1c;--color-danger-soft: #fee2e2;--color-info: #0284c7;--color-info-soft: #e0f2fe;--sidebar-bg: #0f172a;--sidebar-bg-hover: #1e293b;--sidebar-active: #4f46e5;--sidebar-text: #cbd5e1;--sidebar-text-active: #ffffff;--sidebar-border: #1e293b;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, system-ui;--font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;--fs-xs: .75rem;--fs-sm: .875rem;--fs-base: .9375rem;--fs-lg: 1.0625rem;--fs-xl: 1.25rem;--fs-2xl: 1.5rem;--fs-3xl: 1.875rem;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-xl: 18px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .04);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .06), 0 2px 4px -2px rgb(0 0 0 / .04);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .08), 0 4px 6px -4px rgb(0 0 0 / .04);--shadow-glow: 0 0 0 4px rgb(79 70 229 / .12);--transition-fast: .12s ease;--transition-base: .18s ease;--sidebar-w: 240px;--topbar-h: 64px;color-scheme:light;font-family:var(--font-sans);font-size:var(--fs-base);line-height:1.5;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--color-bg)}#root{min-height:100vh}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{margin:0;font-weight:700;color:var(--color-text);letter-spacing:-.01em}h1{font-size:var(--fs-3xl)}h2{font-size:var(--fs-2xl)}h3{font-size:var(--fs-xl)}h4{font-size:var(--fs-lg)}p{margin:0}.shell{display:grid;grid-template-columns:var(--sidebar-w) 1fr;min-height:100vh}.sidebar{background:var(--sidebar-bg);color:var(--sidebar-text);display:flex;flex-direction:column;border-right:1px solid var(--sidebar-border);position:sticky;top:0;height:100vh}.sidebar-brand{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-5) var(--space-5);color:var(--sidebar-text-active);font-weight:700;font-size:var(--fs-lg);border-bottom:1px solid var(--sidebar-border)}.sidebar-brand:hover{text-decoration:none}.sidebar-brand-mark{width:36px;height:36px;border-radius:var(--radius-md);background:#fff;display:grid;place-items:center;overflow:hidden;box-shadow:0 0 0 1px #ffffff14}.sidebar-brand-mark img{width:28px;height:28px;object-fit:contain;display:block}.sidebar-nav{display:flex;flex-direction:column;padding:var(--space-4);gap:var(--space-1);flex:1}.sidebar-link{display:flex;align-items:center;gap:var(--space-3);padding:10px 12px;border-radius:var(--radius-md);color:var(--sidebar-text);font-size:var(--fs-sm);font-weight:500;transition:background var(--transition-fast),color var(--transition-fast)}.sidebar-link:hover{background:var(--sidebar-bg-hover);color:var(--sidebar-text-active);text-decoration:none}.sidebar-link.active{background:var(--sidebar-active);color:var(--sidebar-text-active);box-shadow:0 4px 12px #4f46e559}.sidebar-link svg{flex-shrink:0;width:18px;height:18px}.sidebar-footer{padding:var(--space-4);border-top:1px solid var(--sidebar-border);font-size:var(--fs-xs);color:var(--color-text-subtle)}.main{display:flex;flex-direction:column;min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-6);height:var(--topbar-h);background:var(--color-surface);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:10;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffffeb}.topbar-title{font-size:var(--fs-lg);font-weight:600;color:var(--color-text)}.topbar-actions{display:flex;align-items:center;gap:var(--space-3)}.user-chip{display:flex;align-items:center;gap:var(--space-2);padding:6px 12px;border-radius:var(--radius-full);background:var(--color-surface-2);border:1px solid var(--color-border);font-size:var(--fs-sm);color:var(--color-text)}.user-avatar{width:28px;height:28px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-primary),#8b5cf6);color:#fff;display:grid;place-items:center;font-weight:600;font-size:12px}.content{flex:1;padding:var(--space-6);max-width:1400px;width:100%;margin:0 auto}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-5);gap:var(--space-4);flex-wrap:wrap}.page-header h2{font-size:var(--fs-2xl)}.page-header .subtitle{color:var(--color-text-muted);font-size:var(--fs-sm);margin-top:2px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);height:38px;padding:0 var(--space-4);border-radius:var(--radius-md);font-size:var(--fs-sm);font-weight:500;border:1px solid transparent;cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast);white-space:nowrap;-webkit-user-select:none;user-select:none}.btn:focus-visible{outline:none;box-shadow:var(--shadow-glow)}.btn:disabled{cursor:not-allowed;opacity:.6}.btn svg{width:16px;height:16px}.btn-primary{background:var(--color-primary);color:var(--color-primary-text);border-color:var(--color-primary)}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover);border-color:var(--color-primary-hover)}.btn-secondary{background:var(--color-surface);color:var(--color-text);border-color:var(--color-border-strong)}.btn-secondary:hover:not(:disabled){background:var(--color-surface-2);border-color:var(--color-text-subtle)}.btn-ghost{background:transparent;color:var(--color-text-muted);border-color:transparent}.btn-ghost:hover:not(:disabled){background:var(--color-surface-2);color:var(--color-text)}.btn-success{background:var(--color-success);color:#fff;border-color:var(--color-success)}.btn-success:hover:not(:disabled){background:#15803d;border-color:#15803d}.btn-danger{background:var(--color-surface);color:var(--color-danger);border-color:var(--color-danger-soft)}.btn-danger:hover:not(:disabled){background:var(--color-danger-soft);border-color:var(--color-danger)}.btn-sm{height:30px;padding:0 var(--space-3);font-size:var(--fs-xs)}.btn-icon{width:38px;padding:0}.btn-icon.btn-sm{width:30px}.form{display:grid;gap:var(--space-4)}.form-field{display:grid;gap:var(--space-2)}.form-label{font-size:var(--fs-sm);font-weight:500;color:var(--color-text)}.input,.select{width:100%;height:40px;padding:0 var(--space-3);border-radius:var(--radius-md);border:1px solid var(--color-border-strong);background:var(--color-surface);color:var(--color-text);font-size:var(--fs-sm);font-family:inherit;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input:focus,.select:focus{outline:none;border-color:var(--color-primary);box-shadow:var(--shadow-glow)}.select{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}textarea.input{height:auto;min-height:100px;padding:var(--space-3);resize:vertical;line-height:1.5}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-5)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-4);gap:var(--space-3)}.tabs{display:inline-flex;padding:4px;background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-md);margin-bottom:var(--space-4)}.tab{appearance:none;background:transparent;border:0;height:32px;padding:0 var(--space-3);font-size:var(--fs-sm);font-weight:500;color:var(--color-text-muted);cursor:pointer;border-radius:var(--radius-sm);display:inline-flex;align-items:center;gap:var(--space-2);transition:background var(--transition-fast),color var(--transition-fast)}.tab:hover{color:var(--color-text)}.tab.active{background:var(--color-surface);color:var(--color-text);box-shadow:var(--shadow-sm)}.tab-count{display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:18px;padding:0 6px;border-radius:var(--radius-full);background:var(--color-primary-soft);color:var(--color-primary);font-size:11px;font-weight:600}.tab.active .tab-count{background:var(--color-primary);color:#fff}.table-wrap{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}.table{width:100%;border-collapse:collapse;font-size:var(--fs-sm)}.table thead th{text-align:left;font-weight:600;font-size:var(--fs-xs);text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-muted);background:var(--color-surface-2);border-bottom:1px solid var(--color-border);padding:var(--space-3) var(--space-4)}.table tbody td{padding:var(--space-4);border-bottom:1px solid var(--color-border);color:var(--color-text);vertical-align:middle}.table tbody tr:last-child td{border-bottom:0}.table tbody tr:hover{background:var(--color-surface-2)}.cell-strong{font-weight:600}.cell-truncate{max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cell-actions{text-align:right;white-space:nowrap}.cell-actions>*+*{margin-left:var(--space-2)}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:var(--radius-full);font-size:var(--fs-xs);font-weight:600;background:var(--color-surface-2);color:var(--color-text-muted);border:1px solid var(--color-border);line-height:1.6}.badge-primary{background:var(--color-primary-soft);color:var(--color-primary);border-color:transparent}.badge-success{background:var(--color-success-soft);color:#166534;border-color:transparent}.badge-warning{background:var(--color-warning-soft);color:#92400e;border-color:transparent}.badge-danger{background:var(--color-danger-soft);color:#991b1b;border-color:transparent}.badge-info{background:var(--color-info-soft);color:#075985;border-color:transparent}.badge-dot:before{content:"";width:6px;height:6px;border-radius:var(--radius-full);background:currentColor;display:inline-block}.alert{display:flex;align-items:flex-start;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:var(--fs-sm);border:1px solid transparent;margin-bottom:var(--space-4)}.alert-danger{background:var(--color-danger-soft);border-color:#fecaca;color:#7f1d1d}.alert-info{background:var(--color-info-soft);border-color:#bae6fd;color:#075985}.empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);padding:var(--space-12) var(--space-6);color:var(--color-text-muted);text-align:center}.empty svg{width:48px;height:48px;color:var(--color-text-subtle)}.empty h3{color:var(--color-text)}.empty p{color:var(--color-text-muted);font-size:var(--fs-sm)}.spinner{width:18px;height:18px;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .72s linear infinite;display:inline-block}.spinner-lg{width:32px;height:32px;border-width:3px}.loader-row{display:flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-10) var(--space-4);color:var(--color-text-muted);font-size:var(--fs-sm)}@keyframes spin{to{transform:rotate(360deg)}}.modal-backdrop{position:fixed;inset:0;background:#0f172a80;display:grid;place-items:center;z-index:100;padding:var(--space-4);animation:fadeIn .16s ease}.modal{background:var(--color-surface);border-radius:var(--radius-xl);width:100%;max-width:480px;box-shadow:var(--shadow-lg);overflow:hidden;animation:popIn .18s ease}.modal-header{padding:var(--space-5) var(--space-5) 0}.modal-body{padding:var(--space-4) var(--space-5);color:var(--color-text-muted);font-size:var(--fs-sm)}.modal-body .input,.modal-body .form-label{color:var(--color-text)}.modal-footer{padding:var(--space-4) var(--space-5);display:flex;justify-content:flex-end;gap:var(--space-2);border-top:1px solid var(--color-border);background:var(--color-surface-2)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes popIn{0%{opacity:0;transform:scale(.96) translateY(4px)}to{opacity:1;transform:scale(1) translateY(0)}}.toast-stack{position:fixed;bottom:var(--space-5);right:var(--space-5);display:flex;flex-direction:column;gap:var(--space-2);z-index:200;pointer-events:none}.toast{pointer-events:auto;background:var(--color-surface);border:1px solid var(--color-border);border-left:4px solid var(--color-primary);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:var(--space-3) var(--space-4);display:flex;align-items:center;gap:var(--space-3);min-width:260px;max-width:380px;font-size:var(--fs-sm);animation:toastIn .22s ease}.toast-success{border-left-color:var(--color-success)}.toast-error{border-left-color:var(--color-danger)}.toast-info{border-left-color:var(--color-info)}.toast-icon{flex-shrink:0;width:18px;height:18px}.toast-text{flex:1}@keyframes toastIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.chat-meta{display:flex;flex-wrap:wrap;gap:var(--space-3);align-items:center;margin-bottom:var(--space-4);font-size:var(--fs-sm);color:var(--color-text-muted)}.chat-messages{display:flex;flex-direction:column;gap:var(--space-3)}.chat-bubble{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-3) var(--space-4);max-width:720px;position:relative}.chat-bubble-meta{display:flex;align-items:center;justify-content:space-between;font-size:var(--fs-xs);color:var(--color-text-muted);margin-bottom:4px;gap:var(--space-3)}.chat-bubble-author{color:var(--color-text);font-weight:600;font-size:var(--fs-sm)}.chat-bubble-content{white-space:pre-wrap;word-break:break-word;font-size:var(--fs-sm);line-height:1.6}.login-page{min-height:100vh;display:grid;place-items:center;padding:var(--space-6);background:radial-gradient(circle at 20% 0%,#eef2ff 0%,transparent 50%),radial-gradient(circle at 80% 100%,#ede9fe 0%,transparent 45%),var(--color-bg)}.login-card{width:100%;max-width:420px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-8);box-shadow:var(--shadow-lg);display:grid;gap:var(--space-5)}.login-brand{display:flex;flex-direction:column;align-items:center;gap:var(--space-3);text-align:center}.login-mark{width:200px;max-width:100%;height:auto;display:block}.login-mark.is-square{width:72px;height:72px;border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:0 10px 25px -10px #6366f159;padding:6px;object-fit:contain}.login-title{font-size:var(--fs-xl)}.login-subtitle{color:var(--color-text-muted);font-size:var(--fs-sm)}.muted{color:var(--color-text-muted)}.subtle{color:var(--color-text-subtle)}.hstack{display:flex;align-items:center;gap:var(--space-3)}.vstack{display:flex;flex-direction:column;gap:var(--space-2)}.spacer{flex:1}@media(max-width:900px){:root{--sidebar-w: 64px}.sidebar-brand span,.sidebar-link span,.sidebar-footer{display:none}.sidebar-brand{justify-content:center;padding:var(--space-4)}.sidebar-link{justify-content:center;padding:12px}.content{padding:var(--space-4)}}@media(max-width:600px){.table thead{display:none}.table tbody td{display:block;padding:var(--space-2) var(--space-4);border:0}.table tbody tr{display:block;padding:var(--space-3) 0;border-bottom:1px solid var(--color-border)}.cell-actions{text-align:left}}