/* ATT-MO-FIELD-REF-002-B1 — Navegación móvil industrial, aislada a FIELD.
   Propósito: pictogramas vectoriales estables, rótulos completos y mejor área táctil.
   No altera rutas, estados, MachineOpsService, marcas oficiales ni semántica SAM. */
body.field-shell.field-e4 .field-bottom-nav {
  gap: 4px;
  padding: 9px 6px calc(10px + env(safe-area-inset-bottom));
  align-items: stretch;
}
body.field-shell.field-e4 .field-bottom-nav button {
  min-width: 0;
  min-height: 66px;
  padding: 8px 2px 7px;
  gap: 3px;
  font-family: inherit;
  font-weight: 780;
  font-size: 11px;
  line-height: 1.15;
  letter-spacing: 0;
  overflow-wrap: normal;
  border-radius: 12px 12px 5px 5px;
}
body.field-shell.field-e4 .field-bottom-nav button .field-nav-symbol {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  line-height: 0;
}
body.field-shell.field-e4 .field-bottom-nav button .field-nav-symbol svg {
  display: block;
  width: 25px;
  height: 25px;
  overflow: visible;
  vector-effect: non-scaling-stroke;
}
body.field-shell.field-e4 .field-bottom-nav button .field-nav-label {
  display: block;
  height: auto;
  min-height: 13px;
  font-size: inherit;
  font-weight: inherit;
  line-height: 1.15;
  text-align: center;
  white-space: nowrap;
  letter-spacing: 0;
}
/* SAM conserva su carácter mecánico independiente del SOS humano y de error. */
body.field-shell.field-e4 .field-bottom-nav .sam-nav-trigger {
  min-height: 72px;
  padding: 7px 2px 6px;
  border-radius: 17px 17px 9px 9px;
  transform: translateY(-7px);
  font-weight: 850;
}
body.field-shell.field-e4 .field-bottom-nav .sam-nav-trigger .field-nav-symbol {
  height: 32px;
  width: 32px;
}
body.field-shell.field-e4 .field-bottom-nav .sam-nav-trigger .field-nav-symbol svg {
  height: 28px;
  width: 28px;
}
body.field-shell.field-e4 .field-bottom-nav button:focus-visible {
  outline: 3px solid var(--attent-focus, #1966a3);
  outline-offset: -3px;
}
body.field-shell.field-e4 .field-bottom-nav .sam-nav-trigger:focus-visible {
  outline: 3px solid var(--field-sam-focus, #ffd166);
  outline-offset: 3px;
}
@media (max-width: 365px) {
  body.field-shell.field-e4 .field-bottom-nav {
    gap: 2px;
    padding-left: 2px;
    padding-right: 2px;
  }
  body.field-shell.field-e4 .field-bottom-nav button {
    font-size: 10px;
  }
  body.field-shell.field-e4 .field-bottom-nav button .field-nav-symbol {
    width: 27px;
    height: 28px;
  }
  body.field-shell.field-e4 .field-bottom-nav button .field-nav-symbol svg {
    width: 23px;
    height: 23px;
  }
}
@media (min-width: 540px) {
  body.field-shell.field-e4 .field-bottom-nav button {
    font-size: 12px;
  }
}
@media (prefers-reduced-motion: reduce) {
  body.field-shell.field-e4 .field-bottom-nav button {
    transition: none !important;
  }
}