:root{
  --primary:#2563eb; --primary-dark:#1d4ed8; --bg:#f4f6fb; --card:#ffffff;
  --border:#e2e6ee; --text:#1f2937; --muted:#6b7280; --green:#16a34a;
  --red:#dc2626; --amber:#d97706;
}
*{box-sizing:border-box;}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);margin:0;padding:0;}
header{background:var(--card);border-bottom:1px solid var(--border);padding:16px 24px;display:flex;justify-content:space-between;align-items:center;}
header h1{font-size:18px;margin:0;}
nav{display:flex;gap:4px;padding:0 24px;background:var(--card);border-bottom:1px solid var(--border);flex-wrap:wrap;}
nav a{padding:12px 16px;text-decoration:none;font-size:14px;color:var(--muted);border-bottom:2px solid transparent;}
nav a.active,nav a:hover{color:var(--primary);border-bottom-color:var(--primary);}
main{padding:24px;max-width:1100px;margin:0 auto;}
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:20px;}
.card h2{margin-top:0;font-size:16px;}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:end;}
.field{display:flex;flex-direction:column;gap:4px;font-size:13px;margin-bottom:10px;}
.field label{color:var(--muted);}
input,select{padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;min-width:140px;}
.btn{background:var(--primary);color:#fff;border:none;padding:9px 16px;border-radius:6px;cursor:pointer;font-size:14px;font-weight:500;text-decoration:none;display:inline-block;}
.btn:hover{background:var(--primary-dark);}
.btn.secondary{background:#fff;color:var(--primary);border:1px solid var(--primary);}
.btn.danger{background:#fff;color:var(--red);border:1px solid var(--red);}
.btn.small{padding:5px 10px;font-size:12px;}
table{width:100%;border-collapse:collapse;font-size:13px;}
th,td{padding:9px 10px;border-bottom:1px solid var(--border);text-align:left;}
th{color:var(--muted);font-weight:600;background:#fafbfd;}
.pill{padding:2px 8px;border-radius:10px;font-size:11px;font-weight:600;}
.pill.green{background:#dcfce7;color:var(--green);}
.pill.red{background:#fee2e2;color:var(--red);}
.pill.amber{background:#fef3c7;color:var(--amber);}
.pill.gray{background:#f3f4f6;color:var(--muted);}
.muted{color:var(--muted);}
.alert{padding:10px 14px;border-radius:8px;font-size:14px;margin-bottom:16px;}
.alert.error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca;}
.alert.success{background:#dcfce7;color:#166534;border:1px solid #bbf7d0;}
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;}
.login-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:32px;width:360px;max-width:90vw;}
.login-card h1{font-size:18px;margin:0 0 20px;text-align:center;}
.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;flex-wrap:wrap;gap:10px;}