:root{
  --navy:#1c2b4a;
  --navy-light:#243759;
  --accent:#e0a458;
  --bg:#f5f6f8;
  --card:#ffffff;
  --border:#e4e7ec;
  --text:#20242c;
  --muted:#6b7280;
  --radius:10px;
  --shadow:0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);}
a{color:inherit;text-decoration:none}
.app-shell{display:flex;min-height:100vh}

.sidebar{width:230px;flex-shrink:0;background:var(--navy);color:#fff;display:flex;flex-direction:column;padding:20px 0;position:sticky;top:0;height:100vh}
.brand{font-size:20px;font-weight:700;padding:0 20px 20px;letter-spacing:.3px}
.brand span{color:var(--accent);font-weight:400}
.sidebar nav{display:flex;flex-direction:column;gap:2px;flex:1}
.sidebar nav a{padding:11px 20px;color:#c7d0e0;font-size:14.5px;border-left:3px solid transparent}
.sidebar nav a small{opacity:.65;font-size:11.5px;display:block}
.sidebar nav a:hover{background:var(--navy-light);color:#fff}
.sidebar nav a.active{background:var(--navy-light);color:#fff;border-left-color:var(--accent);font-weight:600}
.sidebar-footer{padding:16px 20px 0;border-top:1px solid rgba(255,255,255,.12)}
.me{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--accent);color:#20242c;display:flex;align-items:center;justify-content:center;font-weight:700}
.me-name{font-size:14px;font-weight:600}
.me-dept{font-size:11.5px;color:#a9b4c8}
.logout-link{font-size:13px;color:#c7d0e0}
.logout-link:hover{color:#fff}

.main{flex:1;min-width:0}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 28px;background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:5}
.topbar h1{font-size:19px;margin:0}
.content{padding:24px 28px 60px;max-width:1200px}

.notif-wrap{position:relative}
.notif-btn{background:none;border:none;font-size:19px;cursor:pointer;position:relative;padding:6px}
.notif-count{position:absolute;top:0;right:0;background:#c0362c;color:#fff;font-size:10.5px;font-weight:700;border-radius:10px;padding:1px 5px;min-width:16px;text-align:center}
.notif-panel{position:absolute;right:0;top:38px;width:340px;max-height:420px;overflow:auto;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);z-index:20}
.notif-panel-head{padding:12px 14px;font-weight:700;border-bottom:1px solid var(--border);font-size:14px}
.notif-list .notif-item{padding:11px 14px;border-bottom:1px solid #f0f1f3;font-size:13.5px}
.notif-list .notif-item:last-child{border-bottom:none}
.notif-list .notif-time{color:var(--muted);font-size:11.5px;margin-top:2px}
.muted{color:var(--muted)}

.flash{padding:10px 14px;border-radius:var(--radius);margin-bottom:16px;font-size:14px}
.flash-success{background:#e7f6ec;color:#1e6b3b;border:1px solid #bfe7cc}
.flash-error{background:#fbe9e8;color:#9c2b23;border:1px solid #f2c3bf}

.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 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}}
@media (max-width:600px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}.sidebar{width:76px}.sidebar nav a small,.brand span,.me-name,.me-dept,.logout-link,.brand{display:none}.me{justify-content:center}}

.stat{padding:16px 18px}
.stat .num{font-size:26px;font-weight:700}
.stat .label{color:var(--muted);font-size:13px;margin-top:2px}

table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}
th{color:var(--muted);font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.03em}
tr:hover td{background:#fafbfc}

.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:color-mix(in srgb, var(--badge-color) 15%, white);color:var(--badge-color);border:1px solid color-mix(in srgb, var(--badge-color) 35%, white)}

.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:8px;border:1px solid var(--navy);background:var(--navy);color:#fff;font-size:14px;font-weight:600;cursor:pointer}
.btn:hover{background:var(--navy-light)}
.btn.secondary{background:#fff;color:var(--navy);border-color:var(--border)}
.btn.secondary:hover{background:#f2f4f7}
.btn.danger{background:#fff;color:#b3423d;border-color:#f2c3bf}
.btn.danger:hover{background:#fbe9e8}
.btn.small{padding:5px 11px;font-size:12.5px}

.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;flex-wrap:wrap;gap:10px}

.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;align-items:center}
select, input[type=text], input[type=date], input[type=number], input[type=email], input[type=tel], input[type=password], textarea{
  padding:8px 11px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;background:#fff;color:var(--text)
}
textarea{width:100%;resize:vertical}
label{font-size:13px;font-weight:600;color:#3d4453;display:block;margin-bottom:5px}
.field{margin-bottom:14px}
form .row{display:flex;gap:12px;flex-wrap:wrap}
form .row .field{flex:1;min-width:180px}

.modal-backdrop{position:fixed;inset:0;background:rgba(20,24,32,.45);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal{background:#fff;border-radius:12px;padding:24px;max-width:520px;width:100%;max-height:88vh;overflow:auto}
.modal h3{margin-top:0}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}

.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,var(--navy),#0f1830)}
.login-card{background:#fff;border-radius:14px;padding:36px 34px;width:100%;max-width:380px;box-shadow:0 10px 40px rgba(0,0,0,.25)}
.login-card h1{margin:0 0 4px;font-size:22px}
.login-card p{color:var(--muted);margin-top:0;margin-bottom:22px;font-size:14px}
.login-card .btn{width:100%;justify-content:center;margin-top:6px}
.login-error{background:#fbe9e8;color:#9c2b23;border:1px solid #f2c3bf;padding:10px 12px;border-radius:8px;font-size:13.5px;margin-bottom:16px}

.empty{color:var(--muted);text-align:center;padding:30px 10px;font-size:14px}
.kv{display:flex;gap:6px;font-size:13.5px;margin-bottom:6px}
.kv b{min-width:110px;color:var(--muted);font-weight:600}
.text-right{text-align:right}
.mini{font-size:12px;color:var(--muted)}
.link-btn{background:none;border:none;color:var(--navy);font-weight:600;cursor:pointer;font-size:13.5px;padding:0}
.link-btn.danger{color:#b3423d}
.actions-cell{display:flex;gap:10px;align-items:center;flex-wrap:wrap}