:root{
  --bg:#f4f6fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#d1d5db;
  --primary:#1e3a8a;
  --danger:#ff4d5a;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
}

.header{
  background:var(--primary);
  color:#fff;
  padding:18px 18px;
}
.header h1{margin:0;font-size:34px;letter-spacing:.2px}
.subtitle{margin:6px 0 0;opacity:.9}

.container{
  max-width:1100px;
  margin:18px auto;
  padding:0 14px 30px;
}

.tabs{
  display:flex;
  gap:10px;
  padding:12px 14px;
  background:transparent;
}
.tab{
  border:1px solid var(--border);
  background:#fff;
  padding:10px 14px;
  border-radius:10px;
  cursor:pointer;
}
.tab.active{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
}

.view{display:none}
.view.active{display:block}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  padding:14px;
  box-shadow:0 6px 18px rgba(15,23,42,.06);
}

.card-header{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
.card-header h2{margin:0;font-size:26px}
.tools{display:flex;gap:10px;flex-wrap:wrap}

.input{
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:10px;
  background:#fff;
  min-width:220px;
}
select.input{min-width:160px}

.table-wrap{overflow:auto;margin-top:12px}
.table{
  width:100%;
  border-collapse:collapse;
  min-width:850px;
}
.table th,.table td{
  border:1px solid var(--border);
  padding:10px;
  text-align:center;
}
.table th{background:#f1f5f9}
.right{text-align:right}

.btn{
  border:1px solid var(--border);
  background:#fff;
  padding:8px 12px;
  border-radius:10px;
  cursor:pointer;
  font-weight:600;
}
.btn-primary{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
}
.btn-danger{
  background:var(--danger);
  border-color:var(--danger);
  color:#fff;
}
.btn-ghost{
  background:#fff;
}

.footer-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  margin-top:12px;
}
.paging{display:flex;align-items:center;gap:10px}

.muted{color:var(--muted)}
.error{color:var(--danger);min-height:16px;display:block;margin-top:6px}
.msg{margin-top:10px;color:var(--muted);min-height:18px}

.grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(240px,1fr));
  gap:12px;
  margin-top:12px;
}
.field label{font-weight:700;display:block;margin-bottom:6px}
.actions{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}

.stats-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(240px,1fr));
  gap:12px;
  margin-top:12px;
}
.stat{
  border:1px solid var(--border);
  border-radius:14px;
  padding:14px;
  background:#fff;
}
.stat-label{color:var(--muted);font-weight:700}
.stat-value{font-size:28px;font-weight:900;margin-top:6px}

@media (max-width:720px){
  .grid,.stats-grid{grid-template-columns:1fr}
  .input{min-width:0;width:100%}
}