:root{
  --brand: #0ea14a;
  --brand-2:#0b8740;
  --text:#0f172a;
  --muted:#475569;
  --bg:#f6f8f7;
  --card:#ffffff;
  --danger:#e11d48;
  --ok:#16a34a;
  --border:#e2e8f0;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:"Be Vietnam Pro",system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,"Noto Sans",sans-serif;background:var(--bg);color:var(--text)}
a{text-decoration:none;color:inherit}
.app-header{
  position:sticky;top:0;z-index:10;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 18px;background:linear-gradient(90deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 2px 8px rgba(0,0,0,.1)
}
.brand{display:flex;gap:12px;align-items:center}
.brand .logo{width:36px;height:36px;border-radius:8px;background:#fff;color:var(--brand);display:grid;place-items:center;font-size:18px;font-weight:700}
.brand .titles .name{font-weight:700}
.brand .titles .sub{font-size:12px;opacity:.9}
.header-actions{display:flex;gap:8px;align-items:center}
.btn, .btn-outline, .btn-danger{
  padding:8px 12px;border-radius:8px;font-weight:600;border:2px solid transparent;display:inline-grid;place-items:center
}
.btn{background:#fff;color:var(--brand)}
.btn-outline{color:#fff;border-color:#fff;background:transparent}
.btn-danger{background:var(--danger);color:#fff}

.app-body{display:grid;grid-template-columns:280px 1fr;gap:0;min-height:calc(100vh - 64px)}
.sidebar{background:#ffffff;border-right:1px solid var(--border);padding:16px 12px;display:flex;flex-direction:column;justify-content:space-between}
.sidebar nav{display:flex;flex-direction:column;gap:6px}
.nav-item{display:flex;align-items:center;gap:10px;padding:12px;border-radius:10px;color:#0f172a;border:1px solid transparent}
.nav-item:hover{background:#f1f5f9;border-color:var(--border)}
.sidebar-foot{padding:8px 12px;color:var(--muted);font-size:12px;border-top:1px dashed var(--border)}

.content{padding:18px}
.page-title{font-size:22px;font-weight:800;margin:8px 0 14px 0}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;margin-bottom:14px;box-shadow:0 6px 14px rgba(2,8,20,.04)}
.card h3{margin:0 0 10px 0;font-size:16px}
.grid{display:grid;gap:14px}
.grid.cols-2{grid-template-columns:1fr 1fr}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.table{width:100%;border-collapse:separate;border-spacing:0 8px}
.table th, .table td{padding:10px 12px;background:#fff}
.table th{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.badge{display:inline-block;padding:4px 10px;border-radius:999px;background:#ecfeff;color:#0369a1;font-weight:700;font-size:12px}
.kpi{display:flex;align-items:center;justify-content:space-between}
.kpi .big{font-size:28px;font-weight:800}
.kpi .small{color:var(--muted);font-size:12px}
.input, select, textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:#fff}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-actions{display:flex;gap:8px;justify-content:flex-end}
.btn-primary{background:var(--brand);color:#fff;border:1px solid var(--brand)}
.btn-ghost{background:#f1f5f9;border:1px solid var(--border)}

.app-footer{padding:14px 18px;border-top:1px solid var(--border);background:#fff;display:flex;gap:10px;align-items:center;justify-content:space-between;color:var(--muted);font-size:14px}

/* Mobile */
@media (max-width: 1024px){
  .app-body{grid-template-columns:1fr}
  .sidebar{position:sticky;top:64px;z-index:9;display:block}
  .nav-item{padding:14px}
  .grid.cols-3{grid-template-columns:repeat(2,1fr)}
  .grid.cols-4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 640px){
  .grid.cols-2, .grid.cols-3, .grid.cols-4{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
}