* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: #f5f5f7;
  margin: 0;
  color: #1f2430;
}

a { color: #1a56db; }

.tarjeta-centrada {
  max-width: 380px;
  margin: 8vh auto;
  background: #fff;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, .08);
}

.contenedor {
  max-width: 960px;
  margin: 2rem auto;
  background: #fff;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, .08);
}

h1 { font-size: 1.4rem; margin-top: 0; }

label {
  display: block;
  margin-bottom: 1rem;
  font-size: .9rem;
  color: #444;
}

input, select {
  width: 100%;
  padding: .55rem .6rem;
  margin-top: .3rem;
  border: 1px solid #d0d3d9;
  border-radius: 6px;
  font-size: 1rem;
}

button {
  background: #1a56db;
  color: #fff;
  border: none;
  padding: .6rem 1.1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: .95rem;
}

button:hover { background: #1544ab; }

.tabla { width: 100%; border-collapse: collapse; margin-top: 1rem; }
.tabla th, .tabla td { text-align: left; padding: .55rem; border-bottom: 1px solid #eee; font-size: .9rem; }

.mensaje-error { color: #b91c1c; background: #fef2f2; padding: .6rem .8rem; border-radius: 6px; }
.mensaje-info { color: #1a56db; background: #eef2ff; padding: .6rem .8rem; border-radius: 6px; }
.mensaje-aviso { color: #92400e; background: #fffbeb; padding: .6rem .8rem; border-radius: 6px; border: 1px solid #fde68a; }

.barra-acciones { margin: 1rem 0; font-size: .9rem; }

.pie-version {
  max-width: 960px;
  margin: 1.5rem auto .75rem;
  padding: 0 2rem;
  text-align: right;
  font-size: .75rem;
  color: #9aa0ab;
}