:root {
  --azul: #1b3a5c;
  --azul-claro: #2f6690;
  --acento: #0f8b8d;
  --fondo: #f4f6f9;
  --panel: #ffffff;
  --borde: #dfe4ea;
  --texto: #1f2933;
  --texto-suave: #62707f;
  --n0: #c94f4f;
  --n1: #e08a3c;
  --n2: #e3c04a;
  --n3: #5aa469;
  --n4: #2f7d4f;
  --sombra: 0 1px 3px rgba(20, 40, 60, .08), 0 4px 14px rgba(20, 40, 60, .05);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--fondo);
  color: var(--texto);
  font-size: 14px;
  line-height: 1.5;
}

button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--azul-claro); }

/* ---------------------------------------------------------------- Estructura */
.cabecera {
  background: var(--azul);
  color: #fff;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 58px;
  flex-wrap: wrap;
}
.cabecera h1 { font-size: 16px; margin: 0; font-weight: 600; letter-spacing: .2px; }
.cabecera nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.cabecera nav button {
  background: transparent; border: 0; color: #cfe0ee; padding: 8px 14px;
  border-radius: 6px; cursor: pointer;
}
.cabecera nav button:hover { background: rgba(255,255,255,.1); color: #fff; }
.cabecera nav button.activo { background: rgba(255,255,255,.18); color: #fff; font-weight: 600; }
.cabecera .sesion { display: flex; align-items: center; gap: 12px; font-size: 13px; color: #cfe0ee; }

main { padding: 24px; max-width: 1500px; margin: 0 auto; }

.panel {
  background: var(--panel); border: 1px solid var(--borde); border-radius: 10px;
  padding: 20px; margin-bottom: 20px; box-shadow: var(--sombra);
}
.panel > h2 { margin: 0 0 4px; font-size: 16px; }
.panel > p.ayuda { margin: 0 0 16px; color: var(--texto-suave); }

.fila { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.fila-entre { display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.crece { flex: 1; min-width: 180px; }

/* -------------------------------------------------------------- Formularios */
label.campo { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--texto-suave); font-weight: 600; }
input[type=text], input[type=password], input[type=email], input[type=date], select, textarea {
  padding: 8px 10px; border: 1px solid var(--borde); border-radius: 6px; background: #fff;
  min-width: 0;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--azul-claro); outline-offset: -1px; }
textarea { resize: vertical; min-height: 64px; }

.boton {
  background: var(--azul); color: #fff; border: 0; padding: 9px 16px; border-radius: 6px;
  cursor: pointer; font-weight: 600;
}
.boton:hover { background: var(--azul-claro); }
.boton:disabled { background: #9aa8b6; cursor: not-allowed; }
.boton.secundario { background: #fff; color: var(--azul); border: 1px solid var(--borde); }
.boton.secundario:hover { background: #eef3f8; }
.boton.peligro { background: #b3453f; }
.boton.pequeno { padding: 5px 10px; font-size: 12px; }

/* -------------------------------------------------------------------- Tablas */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--borde); vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--texto-suave); font-weight: 700; }
tbody tr:hover { background: #f8fafc; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.tabla-scroll { overflow-x: auto; }

/* --------------------------------------------------------------- Indicadores */
.tarjetas { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 20px; }
.tarjeta { background: var(--panel); border: 1px solid var(--borde); border-radius: 10px; padding: 14px 16px; box-shadow: var(--sombra); }
.tarjeta .valor { font-size: 26px; font-weight: 700; color: var(--azul); line-height: 1.2; }
.tarjeta .rotulo { font-size: 12px; color: var(--texto-suave); text-transform: uppercase; letter-spacing: .4px; }

.barra { background: #e8edf2; border-radius: 4px; height: 8px; overflow: hidden; min-width: 70px; }
.barra > span { display: block; height: 100%; border-radius: 4px; }

.etiqueta { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 700; }
.etiqueta.gris { background: #eceff3; color: var(--texto-suave); }
.etiqueta.verde { background: #e2f1e6; color: #2f7d4f; }
.etiqueta.ambar { background: #fdf1dd; color: #a1651c; }
.etiqueta.rojo { background: #fbe6e5; color: #a03a35; }
.etiqueta.azul { background: #e4eef6; color: var(--azul); }

/* ------------------------------------------------------- Selector de niveles */
.niveles { display: inline-flex; border: 1px solid var(--borde); border-radius: 6px; overflow: hidden; }
.niveles button {
  border: 0; background: #fff; padding: 5px 0; width: 34px; cursor: pointer;
  border-right: 1px solid var(--borde); font-weight: 700; color: var(--texto-suave);
}
.niveles button:last-child { border-right: 0; }
.niveles button:hover { background: #eef3f8; }
.niveles button[aria-pressed="true"] { color: #fff; }
.niveles button[aria-pressed="true"][data-nivel="0"] { background: var(--n0); }
.niveles button[aria-pressed="true"][data-nivel="1"] { background: var(--n1); }
.niveles button[aria-pressed="true"][data-nivel="2"] { background: var(--n2); color: #4a3c00; }
.niveles button[aria-pressed="true"][data-nivel="3"] { background: var(--n3); }
.niveles button[aria-pressed="true"][data-nivel="4"] { background: var(--n4); }

.leyenda { display: flex; gap: 14px; flex-wrap: wrap; margin: 0 0 16px; padding: 12px 14px; background: #f8fafc; border: 1px solid var(--borde); border-radius: 8px; }
.leyenda div { font-size: 12px; color: var(--texto-suave); max-width: 210px; }
.leyenda strong { display: block; color: var(--texto); }
.punto { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; }

/* ----------------------------------------------------------- Lista de módulos */
.modulos-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px; }
.modulo-chip {
  display: flex; align-items: flex-start; gap: 10px; padding: 10px 12px;
  border: 1px solid var(--borde); border-radius: 8px; background: #fff; cursor: pointer;
}
.modulo-chip:hover { border-color: var(--azul-claro); }
.modulo-chip input { margin-top: 3px; }
.modulo-chip .nombre { font-weight: 600; }
.modulo-chip .meta { font-size: 12px; color: var(--texto-suave); }

.modulo-card {
  display: flex; align-items: center; gap: 14px; padding: 12px 14px; border: 1px solid var(--borde);
  border-radius: 8px; background: #fff; margin-bottom: 8px; cursor: pointer; text-align: left; width: 100%;
}
.modulo-card:hover { border-color: var(--azul-claro); background: #f8fafc; }
.modulo-card .nombre { font-weight: 600; flex: 1; }

/* -------------------------------------------------------------------- Login */
.login-envoltura { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: linear-gradient(140deg, #1b3a5c, #0f8b8d); }
.login-caja { background: #fff; border-radius: 12px; padding: 32px; width: 100%; max-width: 380px; box-shadow: 0 18px 50px rgba(0,0,0,.25); }
.login-caja h1 { margin: 0 0 4px; font-size: 20px; color: var(--azul); }
.login-caja p { margin: 0 0 20px; color: var(--texto-suave); }
.login-caja label.campo { margin-bottom: 14px; }
.login-caja .boton { width: 100%; }

/* -------------------------------------------------------------------- Avisos */
.aviso { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; border: 1px solid; }
.aviso.error { background: #fbe6e5; border-color: #f0c2c0; color: #8f2f2a; }
.aviso.ok { background: #e2f1e6; border-color: #bfdec8; color: #256b43; }
.aviso.info { background: #e4eef6; border-color: #c3dbec; color: #1b3a5c; }

.vacio { padding: 40px 20px; text-align: center; color: var(--texto-suave); }

/* -------------------------------------------------------------- Barra fija */
.barra-guardar {
  position: sticky; bottom: 0; background: #fff; border-top: 2px solid var(--azul);
  padding: 12px 16px; display: flex; gap: 12px; align-items: center; justify-content: space-between;
  box-shadow: 0 -4px 14px rgba(20,40,60,.08); border-radius: 0 0 10px 10px; flex-wrap: wrap;
}

.oculto { display: none; }
.mini { font-size: 12px; color: var(--texto-suave); }