@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");:root{--background:#ffffff;--foreground:#0f172a;--card:#ffffff;--card-foreground:#0f172a;--muted:#f1f5f9;--muted-foreground:#64748b;--border:#e2e8f0;--border-subtle:#f1f5f9;--primary:#6366f1;--primary-hover:#4f46e5;--primary-foreground:#ffffff;--primary-bg:#eef2ff;--success:#10b981;--success-bg:#ecfdf5;--warning:#f59e0b;--warning-bg:#fffbeb;--danger:#ef4444;--danger-bg:#fef2f2;--info:#3b82f6;--info-bg:#eff6ff;--sidebar-bg:#0f172a;--sidebar-text:#94a3b8;--sidebar-text-active:#ffffff;--sidebar-hover:#1e293b;--sidebar-active:#6366f1;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.07),0 2px 4px -1px rgba(0,0,0,0.04);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.08),0 4px 6px -2px rgba(0,0,0,0.04);--radius:10px;--radius-sm:6px;--radius-lg:14px;--transition:180ms ease;--sidebar-width:240px;--sidebar-collapsed:64px}@media (prefers-color-scheme:dark){:root{--background:#0c0f1a;--foreground:#e2e8f0;--card:#141825;--card-foreground:#e2e8f0;--muted:#1e293b;--muted-foreground:#94a3b8;--border:#334155;--border-subtle:#1e293b;--primary:#818cf8;--primary-hover:#6366f1;--primary-bg:rgba(99,102,241,0.15);--success:#34d399;--success-bg:rgba(16,185,129,0.12);--warning:#fbbf24;--warning-bg:rgba(245,158,11,0.12);--danger:#f87171;--danger-bg:rgba(239,68,68,0.12);--info:#60a5fa;--info-bg:rgba(59,130,246,0.12);--sidebar-bg:#0a0d16;--sidebar-hover:#141825;--shadow-sm:0 1px 2px rgba(0,0,0,0.3);--shadow-md:0 4px 6px rgba(0,0,0,0.3);--shadow-lg:0 10px 15px rgba(0,0,0,0.35)}}*{margin:0;padding:0;box-sizing:border-box}body,html{height:100%;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--background);color:var(--foreground);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}.app-layout{height:100vh}.app-layout,.sidebar{display:flex;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);flex-direction:column;transition:width var(--transition);flex-shrink:0;z-index:100}.sidebar.collapsed{width:var(--sidebar-collapsed)}.sidebar-brand{padding:20px 16px 16px;display:flex;align-items:center;gap:10px;border-bottom:1px solid rgba(255,255,255,.06);min-height:64px}.sidebar-brand-icon{width:32px;height:32px;background:var(--primary);border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-brand-text{color:#fff;font-weight:700;font-size:15px;white-space:nowrap;overflow:hidden}.sidebar.collapsed .sidebar-brand-text,.sidebar.collapsed .sidebar-footer-text,.sidebar.collapsed .sidebar-nav-label,.sidebar.collapsed .sidebar-section-label{display:none}.sidebar-nav{flex:1 1;padding:12px 8px;overflow-y:auto}.sidebar-section-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:rgba(148,163,184,.5);padding:16px 10px 6px;white-space:nowrap}.sidebar-nav-item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;color:var(--sidebar-text);text-decoration:none;font-size:13.5px;font-weight:500;transition:all var(--transition);white-space:nowrap;cursor:pointer;border:none;background:none;width:100%;text-align:left;position:relative}.sidebar-nav-item:hover{background:var(--sidebar-hover);color:var(--sidebar-text-active)}.sidebar-nav-item.active{background:var(--sidebar-active);color:#fff}.sidebar-nav-item .nav-icon{width:20px;height:20px;flex-shrink:0;display:flex;align-items:center;justify-content:center}.sidebar-nav-item .nav-badge{margin-left:auto;background:var(--danger);color:#fff;font-size:10px;font-weight:700;padding:1px 6px;border-radius:99px;min-width:18px;text-align:center}.sidebar-footer{padding:12px;border-top:1px solid rgba(255,255,255,.06)}.sidebar-toggle{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:8px;border:none;border-radius:8px;background:var(--sidebar-hover);color:var(--sidebar-text);cursor:pointer;font-size:12px;transition:all var(--transition)}.sidebar-toggle:hover{color:var(--sidebar-text-active)}.main-content{flex:1 1;overflow-y:auto;overflow-x:hidden;background:var(--background)}.page-container{max-width:1280px;margin:0 auto;padding:24px 24px 40px}.page-header{margin-bottom:24px}.page-header h1{font-size:24px;font-weight:700;letter-spacing:-.02em}.page-header p{color:var(--muted-foreground);font-size:14px;margin-top:4px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition)}.card:hover{box-shadow:var(--shadow-md)}.card-body{padding:16px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));grid-gap:12px;gap:12px;margin-bottom:20px}.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;transition:all var(--transition)}.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.stat-card .stat-label{font-size:12px;font-weight:500;color:var(--muted-foreground);text-transform:uppercase;letter-spacing:.04em}.stat-card .stat-value{font-size:26px;font-weight:800;margin-top:4px;letter-spacing:-.02em}.stat-card .stat-meta{font-size:12px;color:var(--muted-foreground);margin-top:4px}.stat-card .stat-trend-up{color:var(--success)}.stat-card .stat-trend-down{color:var(--danger)}.badge{display:inline-flex;align-items:center;font-size:11px;font-weight:600;padding:2px 8px;border-radius:999px;white-space:nowrap;gap:4px}.badge-primary{background:var(--primary-bg);color:var(--primary)}.badge-success{background:var(--success-bg);color:var(--success)}.badge-warning{background:var(--warning-bg);color:var(--warning)}.badge-danger{background:var(--danger-bg);color:var(--danger)}.badge-info{background:var(--info-bg);color:var(--info)}.badge-muted{background:var(--muted);color:var(--muted-foreground)}.badge-solid-green{background:#166534;color:#fff}.badge-solid-blue{background:#1d4ed8;color:#fff}.badge-solid-amber{background:#b45309;color:#fff}.badge-solid-red{background:#991b1b;color:#fff}.badge-solid-purple{background:#5b21b6;color:#fff}.badge-solid-teal{background:#0f766e;color:#fff}.badge-solid-slate{background:#475569;color:#fff}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:all var(--transition);white-space:nowrap}.btn-primary{background:var(--primary);color:var(--primary-foreground);border-color:var(--primary)}.btn-primary:hover{background:var(--primary-hover)}.btn-outline{background:transparent;color:var(--foreground);border-color:var(--border)}.btn-outline:hover{background:var(--muted)}.btn-ghost{background:transparent;color:var(--muted-foreground);border:none;padding:6px 10px}.btn-ghost:hover{color:var(--foreground);background:var(--muted)}.btn-sm{padding:5px 10px;font-size:12px}.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}.btn-success{background:var(--success);color:#fff;border-color:var(--success)}.btn:disabled{opacity:.5;cursor:not-allowed}.input{width:100%;padding:9px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--background);color:var(--foreground);font-size:13px;transition:border-color var(--transition),box-shadow var(--transition)}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-bg)}.select{padding:9px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--background);color:var(--foreground);font-size:13px;cursor:pointer}.data-table{width:100%;border-collapse:separate;border-spacing:0;font-size:13px}.data-table th{text-align:left;padding:10px 14px;font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted-foreground);border-bottom:1px solid var(--border);background:var(--muted);position:-webkit-sticky;position:sticky;top:0;z-index:1}.data-table td{padding:10px 14px;border-bottom:1px solid var(--border-subtle)}.data-table tr:hover td{background:var(--muted)}.data-table th:first-child{border-top-left-radius:var(--radius-sm)}.data-table th:last-child{border-top-right-radius:var(--radius-sm)}.tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:20px}.tab-btn{padding:10px 18px;background:transparent;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;color:var(--muted-foreground);font-size:13px;font-weight:600;cursor:pointer;transition:all var(--transition);display:flex;align-items:center;gap:6px}.tab-btn:hover{color:var(--foreground)}.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}.filter-bar{gap:8px;flex-wrap:wrap;padding:12px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px}.filter-bar,.pagination{display:flex;align-items:center}.pagination{justify-content:space-between;margin-top:12px;font-size:13px}.empty-state,.pagination{color:var(--muted-foreground)}.empty-state{text-align:center;padding:48px 24px}.empty-state .empty-icon{width:48px;height:48px;margin:0 auto 12px;opacity:.4}.skeleton{background:linear-gradient(90deg,var(--muted) 25%,var(--border-subtle) 50%,var(--muted) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-sm)}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.chart-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}.chart-card h3{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--foreground)}.grid-2{grid-template-columns:repeat(2,1fr);grid-gap:16px}.grid-2,.grid-3{display:grid;gap:16px}.grid-3{grid-template-columns:repeat(3,1fr);grid-gap:16px}@media (max-width:768px){.grid-2,.grid-3{grid-template-columns:1fr}}.conversation-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;grid-gap:12px;gap:12px}@media (max-width:980px){.conversation-layout{grid-template-columns:1fr}}.conv-row{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-bottom:1px solid var(--border-subtle);text-decoration:none;color:inherit;transition:background var(--transition)}.conv-row:hover{background:var(--muted)}.conv-row.unread{background:var(--primary-bg)}.progress-bar{height:6px;background:var(--muted);border-radius:99px;overflow:hidden;position:relative}.progress-bar-fill{height:100%;border-radius:99px;background:var(--primary);transition:width .3s ease}.toast-container{position:fixed;bottom:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px}.toast{padding:10px 16px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;box-shadow:var(--shadow-lg);animation:slideIn .2s ease;max-width:360px}.toast-success{background:var(--success);color:#fff}.toast-error{background:var(--danger);color:#fff}.toast-info{background:var(--info);color:#fff}@keyframes slideIn{0%{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}@media (max-width:768px){.sidebar{position:fixed;left:-240px;height:100vh}.sidebar.open{left:0}.page-container{padding:16px}}