:root {
  --azul: #1e3a5f;
  --azul-claro: #2f5d8a;
  --dorado: #c9a227;
  --verde: #1e8a5f;
  --rojo: #c0392b;
  --gris: #f2f5f9;
  --borde: #e3e8ef;
  --texto: #17202a;
  --texto-suave: #64748b;
  --sombra: 0 6px 24px rgba(15, 23, 42, .06);
}

* { box-sizing: border-box; }

body {
  font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: var(--gris);
  color: var(--texto);
  margin: 0;
  display: flex;
  min-height: 100vh;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
h1, h2, h3, h4 { margin: 0 0 12px; color: var(--azul); }
h2 { font-size: 1.45rem; }
h3 { font-size: 1.12rem; }

/* ---------- Sidebar ---------- */
.barra-lateral {
  width: 250px;
  background: linear-gradient(180deg, #16283f 0%, #1e3a5f 100%);
  color: #fff;
  padding: 22px 16px;
  flex-shrink: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.barra-lateral .logo-marca {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 6px 18px;
  margin-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
}
.barra-lateral .logo-marca img {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .35);
}
.barra-lateral .logo-marca .marca-nombre {
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: .3px;
  line-height: 1.1;
}
.barra-lateral .logo-marca .marca-nombre small {
  display: block;
  color: var(--dorado);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.barra-lateral nav { flex: 1; }
.barra-lateral nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border-radius: 10px;
  margin-bottom: 3px;
  font-size: .92rem;
  color: #d7e3f0;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.barra-lateral nav a:hover { background: rgba(255, 255, 255, .12); color: #fff; transform: translateX(2px); }
.barra-lateral nav a.activo { background: linear-gradient(90deg, var(--azul-claro), #3a6fa5); color: #fff; box-shadow: 0 3px 10px rgba(0, 0, 0, .25); }
.barra-lateral .usuario-actual {
  margin-top: 24px;
  font-size: .8rem;
  color: #b9cbdc;
  border-top: 1px solid rgba(255, 255, 255, .14);
  padding-top: 14px;
}
.barra-lateral .usuario-actual strong { color: #fff; font-weight: 600; }
.barra-lateral button.salir {
  margin-top: 10px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .3);
  color: #fff;
  padding: 8px 10px;
  border-radius: 8px;
  width: 100%;
  cursor: pointer;
  transition: background .15s;
}
.barra-lateral button.salir:hover { background: rgba(255, 255, 255, .18); }

.contenido { flex: 1; padding: 30px 34px; max-width: 1280px; }

/* ---------- Componentes ---------- */
.tarjeta {
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: 14px;
  padding: 20px 22px;
  box-shadow: var(--sombra);
  margin-bottom: 18px;
  transition: box-shadow .2s ease;
}

.grid-metricas { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; margin-bottom: 22px; }
.metrica { position: relative; overflow: hidden; }
.metrica::after {
  content: '';
  position: absolute;
  right: -30px;
  top: -30px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(30, 58, 95, .06);
}
.metrica .valor { font-size: 1.55rem; font-weight: 800; color: var(--azul); }
.metrica .etiqueta { font-size: .8rem; color: var(--texto-suave); font-weight: 600; text-transform: uppercase; letter-spacing: .4px; }

.acciones-rapidas { display: flex; flex-wrap: wrap; gap: 10px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }

label { display: block; font-size: .82rem; font-weight: 600; margin-bottom: 5px; color: #334155; letter-spacing: .2px; }
input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--borde);
  border-radius: 10px;
  font-size: .9rem;
  font-family: inherit;
  background: #fff;
  color: var(--texto);
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--azul-claro);
  box-shadow: 0 0 0 3px rgba(47, 93, 138, .15);
}
textarea { resize: vertical; }

button, .boton {
  cursor: pointer;
  border: none;
  border-radius: 10px;
  padding: 11px 18px;
  font-weight: 700;
  font-size: .88rem;
  display: inline-block;
  transition: background .15s, transform .1s, box-shadow .15s;
  font-family: inherit;
}
button:active, .boton:active { transform: translateY(1px); }
.btn-primario { background: linear-gradient(135deg, var(--azul), var(--azul-claro)); color: #fff; box-shadow: 0 4px 12px rgba(30, 58, 95, .3); }
.btn-primario:hover { box-shadow: 0 6px 16px rgba(30, 58, 95, .4); filter: brightness(1.05); }
.btn-secundario { background: #fff; border: 1px solid var(--azul); color: var(--azul); }
.btn-secundario:hover { background: #f0f5fb; }
.btn-peligro { background: linear-gradient(135deg, #d64545, var(--rojo)); color: #fff; box-shadow: 0 4px 10px rgba(192, 57, 43, .25); }
.btn-dorado { background: linear-gradient(135deg, #d8b13b, var(--dorado)); color: #1c2b16; font-weight: 800; }

table { width: 100%; border-collapse: collapse; margin-top: 10px; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--borde); font-size: .88rem; }
th { color: var(--texto-suave); font-weight: 700; background: #f8fafc; }
tbody tr:hover { background: #f9fbfd; }

.badge { display: inline-block; padding: 4px 10px; border-radius: 20px; font-size: .74rem; font-weight: 700; text-transform: capitalize; }
.badge-verde { background: #e4f7ee; color: var(--verde); }
.badge-rojo { background: #fdeceb; color: var(--rojo); }
.badge-azul { background: #e8f0fa; color: var(--azul); }
.badge-dorado { background: #faf3dd; color: #8a6d1a; }

.oculto { display: none !important; }

.modal-fondo {
  position: fixed;
  inset: 0;
  background: rgba(10, 18, 32, .55);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 18px;
}
.modal {
  background: #fff;
  border-radius: 16px;
  padding: 24px;
  width: 100%;
  max-width: 540px;
  max-height: 92vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .35);
}

.chat-burbuja { max-width: 78%; padding: 12px 15px; border-radius: 14px; margin-bottom: 9px; font-size: .9rem; white-space: pre-wrap; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.chat-usuario { background: linear-gradient(135deg, var(--azul), var(--azul-claro)); color: #fff; margin-left: auto; border-bottom-right-radius: 4px; }
.chat-asistente { background: #eef2f7; color: var(--texto); border-bottom-left-radius: 4px; }