:root{
  --bg:#f4f6f9; --card:#ffffff; --ink:#1f2937; --muted:#6b7280;
  --border:#e5e7eb; --primary:#2563eb; --primary-dark:#1d4ed8;
  --green:#16a34a; --red:#dc2626; --amber:#d97706; --sidebar:#111827;
  --sidebar-ink:#d1d5db; --sidebar-active:#2563eb;
}
*{box-sizing:border-box;}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);}
a{color:var(--primary);text-decoration:none;}
a:hover{text-decoration:underline;}

.app{display:flex;min-height:100vh;}
.sidebar{width:230px;background:var(--sidebar);color:var(--sidebar-ink);flex-shrink:0;display:flex;flex-direction:column;}
.sidebar .brand{padding:20px 18px;font-size:18px;font-weight:700;color:#fff;border-bottom:1px solid #1f2937;}
.sidebar .brand small{display:block;font-weight:400;font-size:12px;color:var(--sidebar-ink);}
.sidebar nav{flex:1;padding:10px 0;overflow-y:auto;}
.sidebar nav a{display:block;padding:10px 18px;color:var(--sidebar-ink);font-size:14px;border-left:3px solid transparent;}
.sidebar nav a:hover{background:#1f2937;text-decoration:none;color:#fff;}
.sidebar nav a.active{background:#1f2937;border-left-color:var(--sidebar-active);color:#fff;font-weight:600;}
.sidebar .user-box{padding:14px 18px;border-top:1px solid #1f2937;font-size:13px;}
.sidebar .user-box .role{color:var(--muted);text-transform:capitalize;}
.sidebar .user-box form{margin-top:8px;}
.sidebar .user-box button{background:none;border:1px solid #374151;color:var(--sidebar-ink);padding:5px 10px;border-radius:6px;cursor:pointer;font-size:12px;}
.sidebar .user-box button:hover{background:#1f2937;}

.main{flex:1;min-width:0;display:flex;flex-direction:column;}
.topbar{background:var(--card);border-bottom:1px solid var(--border);padding:14px 24px;display:flex;justify-content:space-between;align-items:center;}
.topbar h1{font-size:20px;margin:0;}
.content{padding:24px;flex:1;}

.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:20px;}
.card h2,.card h3{margin-top:0;}
.grid{display:grid;gap:16px;}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
@media(max-width:900px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr 1fr;}}

.stat{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px;}
.stat .num{font-size:28px;font-weight:700;}
.stat .label{color:var(--muted);font-size:13px;margin-top:4px;}

table{width:100%;border-collapse:collapse;font-size:14px;}
table th,table td{padding:9px 10px;border-bottom:1px solid var(--border);text-align:left;}
table th{background:#f9fafb;font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.03em;}
table tr:hover td{background:#f9fafb;}

.btn{display:inline-block;padding:8px 14px;border-radius:7px;border:1px solid var(--primary);background:var(--primary);color:#fff;cursor:pointer;font-size:14px;font-weight:500;}
.btn:hover{background:var(--primary-dark);text-decoration:none;}
.btn-outline{background:transparent;color:var(--primary);}
.btn-outline:hover{background:#eff6ff;}
.btn-danger{background:var(--red);border-color:var(--red);}
.btn-danger:hover{background:#b91c1c;}
.btn-sm{padding:4px 10px;font-size:12px;}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}

form .field{margin-bottom:14px;}
form label{display:block;font-size:13px;font-weight:600;margin-bottom:5px;color:#374151;}
input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:7px;font-size:14px;font-family:inherit;background:#fff;color:var(--ink);}
input:focus,select:focus,textarea:focus{outline:2px solid #bfdbfe;border-color:var(--primary);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px;}
@media(max-width:700px){.form-grid{grid-template-columns:1fr;}}

.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:600;}
.badge-green{background:#dcfce7;color:#166534;}
.badge-red{background:#fee2e2;color:#991b1b;}
.badge-amber{background:#fef3c7;color:#92400e;}
.badge-gray{background:#f3f4f6;color:#374151;}
.badge-blue{background:#dbeafe;color:#1e40af;}

.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:14px;}
.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca;}
.alert-success{background:#dcfce7;color:#166534;border:1px solid #bbf7d0;}

.tabs{display:flex;gap:6px;border-bottom:1px solid var(--border);margin-bottom:18px;}
.tabs a{padding:9px 14px;font-size:14px;color:var(--muted);border-bottom:2px solid transparent;}
.tabs a.active{color:var(--primary);border-color:var(--primary);font-weight:600;}

.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1e3a8a,#1e293b);}
.login-card{background:#fff;padding:36px 34px;border-radius:12px;width:360px;box-shadow:0 20px 40px rgba(0,0,0,.25);}
.login-card h1{font-size:22px;margin:0 0 4px;}
.login-card p{color:var(--muted);font-size:13px;margin:0 0 22px;}

.muted{color:var(--muted);}
.text-right{text-align:right;}
.mt0{margin-top:0;}
.empty{color:var(--muted);font-style:italic;padding:20px 0;text-align:center;}

.print-sheet{max-width:720px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:10px;padding:32px;}
.print-sheet h2{margin-top:0;}
.print-only{display:none;}
@media print{
  .sidebar,.topbar,.no-print{display:none !important;}
  .content{padding:0;}
  body{background:#fff;}
  .print-sheet{border:none;padding:0;}
  .print-only{display:block;}
}