:root{
  --azul:#1E3A8A; --azul-claro:#3B5BB5; --verde:#16A34A; --verde-osc:#128A3E;
  --naranja:#F97316; --naranja-osc:#E05E05; --fondo:#F1F4FA; --blanco:#fff;
  --gris:#64748B; --gris-claro:#E6E9F2; --texto:#1F2A44;
  --rojo:#DC2626; --radius:14px; --sombra:0 4px 18px rgba(30,58,138,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Inter',system-ui,Segoe UI,sans-serif;background:var(--fondo);color:var(--texto);line-height:1.55}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

/* ===== Layout ===== */
.layout{display:flex;min-height:100vh}
.sidebar{width:248px;background:#13265c;color:#cdd7f2;flex:none;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.sidebar-logo{display:flex;align-items:center;gap:10px;padding:22px 22px 18px;border-bottom:1px solid rgba(255,255,255,.1)}
.sidebar-logo img{width:42px;height:42px;border-radius:50%}
.sidebar-logo b{font-family:'Nunito',sans-serif;font-weight:900;font-size:.95rem;line-height:1.1;color:#fff}
.sidebar-logo span{color:#7CF2A4}
.sidebar nav{display:flex;flex-direction:column;padding:14px 12px;gap:3px;flex:1}
.sidebar nav a{display:flex;align-items:center;gap:11px;padding:11px 14px;border-radius:10px;font-weight:700;font-size:.92rem;color:#cdd7f2;transition:.18s}
.sidebar nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.sidebar nav a.activo{background:var(--verde);color:#fff}
.sidebar nav a svg{width:19px;height:19px;flex:none}
.sidebar nav .badge{margin-left:auto;background:var(--naranja);color:#fff;font-size:.7rem;font-weight:800;padding:1px 8px;border-radius:999px}
.sidebar-pie{padding:14px 18px;border-top:1px solid rgba(255,255,255,.1);font-size:.82rem}
.sidebar-pie a{color:#9fb0dd}
.sidebar-pie a:hover{color:#fff}

.contenido{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{background:#fff;box-shadow:0 1px 10px rgba(30,58,138,.06);padding:16px 30px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:10}
.topbar h1{font-family:'Nunito',sans-serif;font-size:1.25rem;font-weight:900}
.topbar .usuario{font-size:.88rem;color:var(--gris)}
.topbar .usuario b{color:var(--texto)}
.wrap{padding:30px;max-width:1000px;width:100%;margin:0 auto}

/* ===== Componentes ===== */
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--sombra);padding:24px 26px;margin-bottom:22px}
.grid-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px}
.stat-box{background:#fff;border-radius:var(--radius);box-shadow:var(--sombra);padding:20px 22px}
.stat-box .n{font-family:'Nunito',sans-serif;font-weight:900;font-size:1.9rem;line-height:1}
.stat-box .t{font-size:.8rem;font-weight:700;color:var(--gris);text-transform:uppercase;letter-spacing:.04em;margin-top:6px}

.btn{display:inline-flex;align-items:center;gap:7px;border:none;cursor:pointer;font-family:'Nunito',sans-serif;font-weight:800;font-size:.9rem;padding:10px 18px;border-radius:10px;transition:.16s;color:#fff;background:var(--azul)}
.btn:hover{filter:brightness(1.07)}
.btn-verde{background:var(--verde)}
.btn-naranja{background:var(--naranja)}
.btn-rojo{background:var(--rojo)}
.btn-gris{background:#fff;color:var(--texto);border:1.5px solid var(--gris-claro)}
.btn-sm{padding:6px 12px;font-size:.82rem}

.tabla{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--sombra)}
.tabla th,.tabla td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--gris-claro);font-size:.9rem;vertical-align:middle}
.tabla th{background:#f7f9fd;font-family:'Nunito',sans-serif;font-weight:800;font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;color:var(--gris)}
.tabla tr:last-child td{border-bottom:none}
.tabla tr.no-leido{background:#FFFBEB}
.tabla .acciones{display:flex;gap:8px;flex-wrap:wrap}
.thumb{width:54px;height:40px;border-radius:8px;object-fit:cover;background:var(--gris-claro)}
.thumb-ph{width:54px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-family:'Nunito';font-weight:900}

.pill{display:inline-block;font-size:.72rem;font-weight:800;padding:3px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.03em}
.pill.verde{background:#E8F8EE;color:var(--verde-osc)}
.pill.azul{background:#E9EEFB;color:var(--azul)}
.pill.naranja{background:#FFF1E3;color:var(--naranja-osc)}
.pill.gris{background:var(--gris-claro);color:var(--gris)}
.pill.estrella{background:#FEF3C7;color:#B45309}

.barra-mini{background:var(--gris-claro);border-radius:999px;height:8px;overflow:hidden;width:120px}
.barra-mini i{display:block;height:100%;background:var(--verde);border-radius:999px}

/* ===== Formularios ===== */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.campo{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.campo.full{grid-column:1 / -1}
.campo label{font-weight:700;font-size:.86rem}
.campo .hint{font-size:.78rem;color:var(--gris)}
.campo input[type=text],.campo input[type=number],.campo input[type=date],
.campo input[type=password],.campo select,.campo textarea{
  border:1.5px solid var(--gris-claro);border-radius:10px;padding:11px 13px;font-size:.95rem;font-family:'Inter',sans-serif;width:100%;background:#fff}
.campo input:focus,.campo select:focus,.campo textarea:focus{outline:none;border-color:var(--verde)}
.campo textarea{resize:vertical;min-height:84px}
.check{display:flex;align-items:center;gap:9px;font-weight:700;font-size:.9rem}
.check input{width:18px;height:18px}
.acciones-form{display:flex;gap:12px;margin-top:8px}
fieldset{border:1.5px solid var(--gris-claro);border-radius:12px;padding:18px 20px 4px;margin-bottom:18px}
fieldset legend{font-family:'Nunito',sans-serif;font-weight:900;font-size:.95rem;padding:0 8px;color:var(--azul)}

.aviso{border-radius:10px;padding:12px 16px;font-size:.9rem;font-weight:600;margin-bottom:18px}
.aviso.ok{background:#E8F8EE;color:var(--verde-osc);border:1px solid #bbe7cc}
.aviso.error{background:#FDECEC;color:#B91C1C;border:1px solid #f3c2c2}
.vacio{text-align:center;color:var(--gris);padding:40px 20px}

/* ===== Login ===== */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;
  background:linear-gradient(135deg,#1E3A8A,#13265c)}
.login-card{background:#fff;border-radius:20px;box-shadow:0 20px 50px rgba(0,0,0,.25);padding:38px 34px;width:min(400px,100%)}
.login-card .marca{display:flex;flex-direction:column;align-items:center;gap:12px;margin-bottom:22px;text-align:center}
.login-card .marca img{width:76px;height:76px;border-radius:50%}
.login-card .marca b{font-family:'Nunito',sans-serif;font-weight:900;font-size:1.05rem}
.login-card .marca small{color:var(--gris)}

@media(max-width:820px){
  .sidebar{width:64px}
  .sidebar-logo b,.sidebar nav a span,.sidebar-pie span{display:none}
  .sidebar nav a{justify-content:center}
  .grid-stats{grid-template-columns:repeat(2,1fr)}
  .form-grid{grid-template-columns:1fr}
  .wrap{padding:18px}
  .tabla{display:block;overflow-x:auto;white-space:nowrap}
}