:root{
  --bg:#f4f6fa; --card:#fff; --ink:#0f172a; --muted:#64748b; --line:#e2e8f0;
  --brand:#1d4ed8; --brand-2:#1e40af;
  --red:#dc2626; --red-bg:#fef2f2; --amber:#b45309; --amber-bg:#fffbeb;
  --green:#15803d; --green-bg:#f0fdf4; --gray-bg:#f1f5f9;
  --radius:12px; --shadow:0 1px 2px rgba(15,23,42,.06),0 4px 14px rgba(15,23,42,.05);
}
*{box-sizing:border-box}
html,body{margin:0}
body{font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--brand);text-decoration:none} a:hover{text-decoration:underline}
h1{font-size:1.5rem;margin:0 0 4px} h2{font-size:1.15rem;margin:0 0 12px} h3{font-size:1rem;margin:0 0 8px}
.muted{color:var(--muted)} small{color:var(--muted)}

/* Barra superior */
.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:16px;padding:10px 20px;background:#0f172a;color:#fff}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:1.05rem}
.brand:hover{text-decoration:none}
.brand small{display:block;font-weight:400;color:#94a3b8;font-size:.72rem;line-height:1}
.logo{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--brand);font-size:.85rem;letter-spacing:.5px}
.topbar nav{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap}
.topbar nav a{color:#cbd5e1;padding:7px 11px;border-radius:8px}
.topbar nav a:hover{background:#1e293b;color:#fff;text-decoration:none}
.topbar nav a.on{background:#1e293b;color:#fff}
.topbar nav a.cta{background:var(--brand);color:#fff}
.topbar nav .user{color:#fff;padding:0 10px;border-left:1px solid #334155;margin-left:6px}
.topbar nav .user small{color:#94a3b8;display:block;font-size:.72rem;line-height:1}
.menu-btn{display:none;margin-left:auto;background:none;border:0;color:#fff;font-size:1.4rem;cursor:pointer}
@media (max-width:860px){
  .menu-btn{display:block}
  .topbar{flex-wrap:wrap}
  .topbar nav{display:none;width:100%;flex-direction:column;align-items:stretch}
  body.nav-open .topbar nav{display:flex}
  .topbar nav .user{border:0;margin:6px 0;padding:6px 11px}
}

.wrap{max-width:1200px;margin:0 auto;padding:24px 16px 40px}
.wrap.narrow{max-width:420px;padding-top:8vh}
.foot{text-align:center;color:var(--muted);font-size:.8rem;padding:20px}

.pagehead{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:18px}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:860px){.g2,.g3{grid-template-columns:1fr}}

/* KPIs */
.kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:18px}
@media (max-width:860px){.kpis{grid-template-columns:repeat(2,minmax(0,1fr))}}
.kpi{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow);color:var(--ink);border-top:4px solid var(--line)}
.kpi:hover{text-decoration:none;transform:translateY(-1px)}
.kpi .n{font-size:2rem;font-weight:700;line-height:1.1}
.kpi .l{color:var(--muted);font-size:.85rem}
.kpi.red{border-top-color:var(--red)} .kpi.red .n{color:var(--red)}
.kpi.amber{border-top-color:#f59e0b} .kpi.amber .n{color:var(--amber)}
.kpi.green{border-top-color:#22c55e} .kpi.green .n{color:var(--green)}
.kpi.blue{border-top-color:var(--brand)}

/* Barra de estado apilada */
.stack{display:flex;height:12px;border-radius:99px;overflow:hidden;background:var(--gray-bg);gap:2px}
.stack span{display:block;height:100%}
.legend{display:flex;gap:16px;flex-wrap:wrap;margin-top:10px;font-size:.85rem;color:var(--muted)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:-1px}

/* Tablas */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:600;background:#f8fafc}
tr:hover td{background:#fafcff}
td .sub{display:block;color:var(--muted);font-size:.82rem}
.num{text-align:right;font-variant-numeric:tabular-nums}

/* Badges */
.badge{display:inline-block;padding:3px 9px;border-radius:99px;font-size:.78rem;font-weight:600;white-space:nowrap}
.b-red{background:var(--red-bg);color:var(--red)}
.b-amber{background:var(--amber-bg);color:var(--amber)}
.b-green{background:var(--green-bg);color:var(--green)}
.b-gray{background:var(--gray-bg);color:var(--muted)}
.b-blue{background:#eff6ff;color:var(--brand)}

/* Alertas del dashboard */
.alert-item{display:flex;gap:14px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.alert-item:last-child{border-bottom:0}
.alert-item .dot{flex:none;width:10px;height:10px;border-radius:50%}
.alert-item .body{flex:1;min-width:0}
.alert-item .t{font-weight:600}
.alert-item .m{color:var(--muted);font-size:.85rem}

/* Formularios */
label{display:block;font-weight:600;font-size:.88rem;margin:0 0 5px}
.field{margin-bottom:14px}
.hint{font-size:.8rem;color:var(--muted);margin-top:4px}
input[type=text],input[type=email],input[type=password],input[type=date],input[type=number],input[type=search],select,textarea{
  width:100%;padding:9px 11px;border:1px solid #cbd5e1;border-radius:8px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid #bfdbfe;border-color:var(--brand)}
textarea{min-height:80px;resize:vertical}
.check{display:flex;gap:8px;align-items:flex-start;font-weight:400;margin-bottom:8px}
.check input{margin-top:4px}
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:8px;border:1px solid transparent;background:var(--brand);color:#fff;font:inherit;font-weight:600;cursor:pointer}
.btn:hover{background:var(--brand-2);text-decoration:none}
.btn.sec{background:#fff;color:var(--ink);border-color:#cbd5e1}
.btn.sec:hover{background:#f8fafc}
.btn.danger{background:#fff;color:var(--red);border-color:#fecaca}
.btn.danger:hover{background:var(--red-bg)}
.btn.sm{padding:5px 10px;font-size:.85rem}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.filters .field{margin:0;min-width:160px;flex:1}

.flash{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-weight:500}
.flash-ok{background:var(--green-bg);color:var(--green);border:1px solid #bbf7d0}
.flash-error{background:var(--red-bg);color:var(--red);border:1px solid #fecaca}

.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:18px;flex-wrap:wrap}
.tabs a{padding:9px 14px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs a.on{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}
.tabs a:hover{text-decoration:none;color:var(--ink)}

dl.kv{display:grid;grid-template-columns:170px 1fr;gap:8px 16px;margin:0}
dl.kv dt{color:var(--muted)} dl.kv dd{margin:0}
@media (max-width:600px){dl.kv{grid-template-columns:1fr}}

.empty{text-align:center;color:var(--muted);padding:30px 10px}
.login-card{text-align:center}
.login-card .logo{width:52px;height:52px;margin:0 auto 12px;font-size:1.1rem;color:#fff}
.login-card form{text-align:left}
.perm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:4px 16px}