:root{--primary:#1a73e8;--bg:#f0f2f5;--card:#fff;--sidebar:#1e293b;--text:#1f2937;--muted:#64748b}*{box-sizing:border-box;margin:0;padding:0;font-family:system-ui,-apple-system,sans-serif}body{background:var(--bg);color:var(--text)}.layout{min-height:100vh;display:flex}.sidebar{background:var(--sidebar);color:#fff;width:240px;height:100vh;padding:20px 0;position:fixed}.sidebar h2{text-align:center;border-bottom:1px solid #334155;margin-bottom:10px;padding:15px;font-size:18px}.sidebar a{color:#cbd5e1;padding:12px 20px;text-decoration:none;transition:all .2s;display:block}.sidebar a:hover,.sidebar a.active{color:#fff;border-left:3px solid var(--primary);background:#334155}.content{flex:1;margin-left:240px;padding:24px}.topbar{background:var(--card);border-radius:12px;justify-content:space-between;align-items:center;margin-bottom:24px;padding:16px 24px;display:flex;box-shadow:0 1px 3px #00000014}.topbar h1{font-size:20px}.stats{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px;display:grid}.stat-card{background:var(--card);border-radius:12px;padding:20px;box-shadow:0 1px 3px #00000014}.stat-card h3{color:var(--muted);margin-bottom:8px;font-size:14px}.stat-card p{font-size:28px;font-weight:700}.card{background:var(--card);border-radius:12px;margin-bottom:16px;padding:20px;box-shadow:0 1px 3px #00000014}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid #e5e7eb;padding:10px 12px;font-size:14px}th{color:var(--muted);text-transform:uppercase;font-size:13px;font-weight:600}.btn{cursor:pointer;border:none;border-radius:8px;align-items:center;gap:6px;padding:8px 16px;font-size:14px;display:inline-flex}.btn-primary{background:var(--primary);color:#fff}.btn-green{color:#fff;background:#10b981}.btn-red{color:#fff;background:#ef4444}.btn-sm{padding:4px 10px;font-size:12px}.flex{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.mb-4{margin-bottom:16px}input,select{border:1px solid #d1d5db;border-radius:8px;outline:none;padding:8px 12px;font-size:14px}input:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #1a73e826}.badge{border-radius:999px;padding:2px 8px;font-size:12px;font-weight:600}.badge-green{color:#065f46;background:#d1fae5}.badge-red{color:#991b1b;background:#fee2e2}.badge-yellow{color:#92400e;background:#fef3c7}.tabs{gap:2px;margin-bottom:16px;display:flex}.tab{cursor:pointer;color:var(--muted);background:0 0;border:none;border-bottom:2px solid #0000;padding:10px 20px;font-size:14px}.tab.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}