:root{
  --bg:#f4f7fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e2e8f0;
  --primary:#2563eb;
  --primary2:#1d4ed8;
  --success:#16a34a;
  --danger:#dc2626;
  --warn:#f59e0b;
  --shadow:0 10px 30px rgba(2,6,23,.08);
  --r:16px;
  --r2:22px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji";
  background:var(--bg);
  color:var(--text);
}
a{color:inherit; text-decoration:none}
.container{max-width:1220px; margin:0 auto; padding:16px}
.app{display:grid; grid-template-columns:260px 1fr; gap:14px; align-items:start;}
@media (max-width:980px){ .app{grid-template-columns:1fr} }
.sidebar{
  position:sticky; top:14px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r2);
  box-shadow:var(--shadow);
  padding:14px;
}
@media (max-width:980px){ .sidebar{position:relative} }
.brand{
  display:flex; align-items:center; gap:10px;
  padding:10px 10px;
  border-radius:14px;
  background:linear-gradient(135deg, rgba(37,99,235,.12), rgba(37,99,235,.03));
  border:1px solid rgba(37,99,235,.18);
  margin-bottom:12px;
}
.logo{
  width:42px; height:42px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  background:#1d4ed8; color:#fff; font-weight:800;
}
.brand h1{font-size:14px; margin:0}
.brand p{font-size:12px; margin:0; color:var(--muted)}
.nav{display:flex; flex-direction:column; gap:6px; margin-top:10px;}
.nav a{
  padding:10px 12px;
  border-radius:14px;
  border:1px solid transparent;
  display:flex; align-items:center; gap:10px;
  color:#0f172a;
}
.nav a:hover{ background:#f8fafc; border-color:var(--border); }
.nav a.active{
  background:rgba(37,99,235,.10);
  border-color:rgba(37,99,235,.22);
  color:#0b2a6b;
}
.main{display:flex; flex-direction:column; gap:14px;}
.topbar{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r2);
  box-shadow:var(--shadow);
  padding:12px 14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  flex-wrap:wrap;
}
.pageTitle h2{margin:0; font-size:16px}
.pageTitle p{margin:3px 0 0 0; font-size:12.5px; color:var(--muted)}
.actions{display:flex; gap:8px; flex-wrap:wrap; justify-content:flex-end}
.btn{
  border:1px solid var(--border);
  background:#fff;
  color:#0f172a;
  padding:9px 12px;
  border-radius:14px;
  font-size:13px;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.btn.primary{background:var(--primary); border-color:var(--primary); color:#fff}
.btn.primary:hover{background:var(--primary2)}
.btn.ghost{background:#fff}
.btn.danger{border-color:#fecaca; color:var(--danger)}
.btn.success{border-color:#bbf7d0; color:var(--success)}
.btn.warn{border-color:#fde68a; color:#92400e}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r2);
  box-shadow:var(--shadow);
  padding:14px;
}
.grid{display:grid; grid-template-columns:repeat(12,1fr); gap:12px;}
.col-12{grid-column:span 12}
.col-8{grid-column:span 8}
.col-6{grid-column:span 6}
.col-4{grid-column:span 4}
.col-3{grid-column:span 3}
.col-2{grid-column:span 2}
@media (max-width:860px){ .col-8,.col-6,.col-4,.col-3,.col-2{grid-column:span 12} }
.field{display:flex; flex-direction:column; gap:6px}
label{font-size:12px; color:var(--muted)}
.control{
  width:100%;
  padding:10px 11px;
  border:1px solid var(--border);
  border-radius:14px;
  outline:none;
  font-size:13px;
  background:#fff;
}
.control:focus{ border-color:#93c5fd; box-shadow:0 0 0 4px rgba(59,130,246,.14); }
.help{font-size:12px; color:var(--muted); line-height:1.35}
.hr{height:1px; background:var(--border); margin:12px 0}
.tablewrap{overflow:auto; border:1px solid var(--border); border-radius:18px;}
table{border-collapse:collapse; width:100%; min-width:900px; background:#fff;}
thead th{
  text-align:left;
  font-size:12px;
  color:#334155;
  background:#f8fafc;
  border-bottom:1px solid var(--border);
  padding:10px 12px;
  position:sticky; top:0; z-index:2;
}
tbody td{padding:10px 12px; border-bottom:1px solid var(--border); font-size:13px;}
tbody tr:hover{background:#fbfdff}
.badge{
  display:inline-flex; align-items:center; gap:6px;
  font-size:12px; padding:5px 9px;
  border-radius:999px;
  border:1px solid var(--border);
  background:#fff;
}
.badge.p{border-color:#bbf7d0; background:#f0fdf4; color:var(--success)}
.badge.a{border-color:#fecaca; background:#fef2f2; color:var(--danger)}
.badge.l{border-color:#fde68a; background:#fffbeb; color:#92400e}
.badge.i{border-color:#bfdbfe; background:#eff6ff; color:#1d4ed8}
.badge.active{border-color:#bbf7d0; background:#f0fdf4; color:var(--success)}
.badge.completed{border-color:#bfdbfe; background:#eff6ff; color:#1d4ed8}
.badge.dropout{border-color:#fecaca; background:#fef2f2; color:var(--danger)}
.badge.leave{border-color:#fde68a; background:#fffbeb; color:#92400e}
.kpiRow{display:grid; grid-template-columns:repeat(4,1fr); gap:12px;}
@media (max-width:860px){ .kpiRow{grid-template-columns:repeat(2,1fr)} }
.kpi{border:1px solid var(--border); border-radius:18px; padding:12px; background:#fff;}
.kpi .k{font-size:12px; color:var(--muted)}
.kpi .v{font-size:20px; font-weight:800; margin-top:4px}
.avatar{
  width:44px; height:44px; border-radius:16px;
  background:#eef2ff; color:#3730a3;
  display:flex; align-items:center; justify-content:center;
  font-weight:800;
}
.row{display:flex; gap:12px; flex-wrap:wrap; align-items:center}
.space{justify-content:space-between}
.muted{color:var(--muted)}
.small{font-size:12px}
.mobileShell{max-width:520px; margin:0 auto;}
.adminRemark{
  margin-top:10px;
  padding:9px 10px;
  font-size:12px;
  border-radius:12px;
  background:#f1f5f9;
  border:1px solid #e2e8f0;
  color:#334155;
}
.adminRemark b{color:#0f172a}