:root{--bg: #f5f6fb;--surface: #ffffff;--surface-2: #f1f3fa;--border: #e3e6ef;--text: #171a23;--text-dim: #6b7280;--accent: #4f7cff;--purple: #8b5cf6;--teal: #06b6d4;--pink: #ec4899;--green: #16a34a;--red: #dc2626;--amber: #d97706;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.app-shell{display:flex;min-height:100vh}.sidebar{width:232px;background:var(--surface);border-right:1px solid var(--border);padding:0 12px 20px;flex-shrink:0;box-shadow:1px 0 #171a2305}.sidebar-top-bar{height:4px;margin:0 -12px 18px;background:linear-gradient(90deg,#4f7cff,#8b5cf6 45%,#06b6d4)}.sidebar-logo{display:block;padding:4px 10px 20px}.sidebar a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:var(--text-dim);text-decoration:none;font-size:14px;font-weight:500;margin-bottom:2px}.sidebar a .nav-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}.sidebar a.active,.sidebar a:hover{background:var(--surface-2);color:var(--text)}.sidebar a.active{font-weight:700}.main{flex:1;padding:28px 32px;max-width:1200px}.main h2{margin-top:0}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:28px}.stat-card{background:var(--surface);border:1px solid var(--border);border-top:3px solid var(--accent);border-radius:12px;padding:18px;box-shadow:0 1px 2px #171a230a}.stat-card .value{font-size:26px;font-weight:700;margin-top:6px}.stat-card .label{color:var(--text-dim);font-size:13px}table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:10px;overflow:hidden}th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--border);font-size:14px}th{color:var(--text-dim);font-weight:600;background:var(--surface-2)}tr:last-child td{border-bottom:none}.badge{padding:3px 9px;border-radius:999px;font-size:12px;font-weight:600}.badge.green{background:#16a34a1f;color:var(--green)}.badge.red{background:#dc26261f;color:var(--red)}.badge.amber{background:#d977061f;color:var(--amber)}.badge.grey{background:#6b72801f;color:var(--text-dim)}button{cursor:pointer;border:none;border-radius:8px;padding:8px 14px;font-size:13px;font-weight:600;background:var(--accent);color:#fff}button.secondary{background:var(--surface-2);color:var(--text);border:1px solid var(--border)}button.danger{background:var(--red)}button:disabled{opacity:.5;cursor:not-allowed}input,select{background:var(--surface);border:1px solid var(--border);color:var(--text);padding:8px 10px;border-radius:8px;font-size:14px}input:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #4f7cff1f}.toolbar{display:flex;gap:10px;margin-bottom:16px;align-items:center}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:radial-gradient(circle at 15% 20%,rgba(79,124,255,.1),transparent 40%),radial-gradient(circle at 85% 80%,rgba(6,182,212,.1),transparent 40%),var(--bg)}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px;width:340px;box-shadow:0 8px 30px #171a2314}.login-card .sidebar-logo{padding:0 0 24px;text-align:center}.login-card h2{margin-top:0}.login-card label{display:block;font-size:13px;color:var(--text-dim);margin:12px 0 6px}.login-card input{width:100%}.login-card button{width:100%;margin-top:20px;padding:10px}.error-text{color:var(--red);font-size:13px;margin-top:8px}