/* ==========================================================================
   NOVA TRADING INSTITUTE - ACCESSIBILITY STYLESHEET (accessibility.css)
   Cumplimiento WCAG 2.1 AA: Foco teclado, lectores de pantalla, accesibilidad visual
   ========================================================================== */

/* Utility para lectores de pantalla */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Foco Teclado Visible de Alta Visibilidad */
:focus-visible {
  outline: 3px solid var(--border-focus) !important;
  outline-offset: 3px !important;
  border-radius: 4px;
}

/* Contraste mejorado para textos pequeños */
p, span, li, label, th, td {
  text-rendering: optimizeLegibility;
}

/* Soporte para usuarios que prefieren reducir movimiento */
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Alto contraste táctil para botones touch en dispositivos móviles */
button, a, select, input {
  min-height: 44px;
  min-width: 44px;
}