:root{
    --azul:#0b1f3a;--azul2:#102b52;--dorado:#c9a227;--gris:#f4f6f9;--linea:#e5e7eb;--texto:#1f2937;--muted:#6b7280;--ok:#198754;--danger:#dc3545;--warn:#b7791f;
}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--gris);color:var(--texto)}a{color:inherit}.admin-shell{display:flex;min-height:100vh}.sidebar{width:310px;background:linear-gradient(180deg,var(--azul),#07182e);color:#fff;padding:18px 14px;position:fixed;left:0;top:0;bottom:0;overflow:auto}.brand{display:flex;gap:12px;align-items:center;padding:10px 8px 20px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:14px}.brand-logo{width:46px;height:46px;border-radius:14px;background:var(--dorado);color:#111827;display:flex;align-items:center;justify-content:center;font-weight:bold}.brand span{display:block;font-size:12px;color:#cbd5e1;margin-top:3px}.sidebar nav a{display:flex;gap:10px;align-items:center;text-decoration:none;color:#e5e7eb;padding:9px 12px;border-radius:10px;margin:2px 0;font-size:14px}.sidebar nav a:hover,.sidebar nav a.active{background:rgba(201,162,39,.18);color:#fff}.main{margin-left:310px;flex:1;padding:24px 32px;min-width:0}.topbar{background:#fff;border-radius:16px;padding:18px 22px;box-shadow:0 8px 30px rgba(0,0,0,.06);display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:18px}.topbar h1{margin:0;color:var(--azul);font-size:26px}.topbar small{color:var(--muted)}.userbox{text-align:right;font-size:13px}.userbox strong,.userbox span{display:block}.userbox span{color:var(--muted);margin-bottom:5px}.userbox a{display:inline-block;margin-left:8px;color:var(--azul);font-weight:bold}.card{background:#fff;border-radius:16px;padding:20px;box-shadow:0 8px 30px rgba(0,0,0,.06);margin-bottom:18px}.grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.stat{background:#fff;border-radius:16px;padding:18px;box-shadow:0 8px 30px rgba(0,0,0,.06);border-left:5px solid var(--dorado)}.stat strong{font-size:30px;color:var(--azul);display:block}.stat span{color:var(--muted)}table{width:100%;border-collapse:collapse}th,td{border-bottom:1px solid var(--linea);padding:10px;text-align:left;vertical-align:top;font-size:14px}th{color:var(--azul);background:#f9fafb}input,select,textarea{width:100%;padding:10px;border:1px solid #d1d5db;border-radius:10px;font-size:14px;background:#fff}textarea{min-height:90px;resize:vertical}label{font-weight:bold;margin-bottom:6px;display:block;color:#374151}.form-row{margin-bottom:12px}.btn{border:0;border-radius:10px;padding:10px 14px;font-weight:bold;cursor:pointer;text-decoration:none;display:inline-block}.btn.primary{background:var(--azul);color:#fff}.btn.gold{background:var(--dorado);color:#111827}.btn.light{background:#eef2f7;color:#111827}.btn.danger{background:var(--danger);color:#fff}.alert{padding:13px 15px;border-radius:12px;margin-bottom:14px;font-weight:bold}.alert.ok{background:#e8f7ee;color:#0f5132}.alert.err{background:#fdeaea;color:#842029}.alert.warn{background:#fff7e6;color:#7c4a03}.badge{display:inline-block;border-radius:999px;padding:4px 9px;font-size:12px;background:#e5e7eb;color:#374151}.badge.ok{background:#e8f7ee;color:#0f5132}.badge.warn{background:#fff7e6;color:#7c4a03}.badge.danger{background:#fdeaea;color:#842029}.actions{display:flex;gap:8px;flex-wrap:wrap}.note{color:var(--muted);font-size:13px}hr{border:0;border-top:1px solid var(--linea);margin:18px 0}
@media(max-width:1300px){.grid{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-2{grid-template-columns:1fr}}
@media(max-width:1050px){.grid{grid-template-columns:repeat(2,1fr)}.sidebar{position:static;width:100%;height:auto}.admin-shell{display:block}.main{margin-left:0;padding:18px}}
@media(max-width:700px){.grid,.grid-2{grid-template-columns:1fr}.topbar{display:block}.userbox{text-align:left;margin-top:12px}}