/* Estilos de Accesibilidad Globales */

/* Variables CSS para tamaños de fuente */
:root {
  --base-font-size: 16px;
}

/* Aplicar tamaño de fuente base */
html {
  font-size: var(--base-font-size);
}

body {
  font-size: 1rem;
}

/* Alto Contraste */
.high-contrast {
  --color-background: #ffffff;
  --color-text: #000000;
  --color-primary: #0000ff;
  --color-secondary: #808080;
  --color-accent: #ffff00;
  --color-error: #ff0000;
  --color-success: #008000;
  --color-warning: #ffa500;
  --border: #000000;
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
}

.high-contrast * {
  background-color: var(--color-background) !important;
  color: var(--color-text) !important;
  border-color: var(--border) !important;
}

.high-contrast button,
.high-contrast input,
.high-contrast select,
.high-contrast textarea {
  border: 2px solid var(--border) !important;
  background-color: var(--color-background) !important;
  color: var(--color-text) !important;
}

.high-contrast button:hover,
.high-contrast input:hover,
.high-contrast select:hover,
.high-contrast textarea:hover {
  background-color: var(--color-accent) !important;
  color: var(--color-text) !important;
}

.high-contrast button:focus,
.high-contrast input:focus,
.high-contrast select:focus,
.high-contrast textarea:focus {
  outline: 3px solid var(--color-primary) !important;
  outline-offset: 2px !important;
}

/* Movimiento Reducido */
.reduced-motion * {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
  scroll-behavior: auto !important;
}

.reduced-motion *:before,
.reduced-motion *:after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
}

/* Indicador de Foco Visible */
.focus-visible *:focus {
  outline: 3px solid #3b82f6 !important;
  outline-offset: 2px !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3) !important;
}

.focus-visible button:focus,
.focus-visible input:focus,
.focus-visible select:focus,
.focus-visible textarea:focus,
.focus-visible a:focus {
  outline: 3px solid #3b82f6 !important;
  outline-offset: 2px !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3) !important;
}

/* Navegación por Teclado */
.keyboard-navigation *:focus {
  outline: 3px solid #3b82f6 !important;
  outline-offset: 2px !important;
}

.keyboard-navigation button:focus,
.keyboard-navigation input:focus,
.keyboard-navigation select:focus,
.keyboard-navigation textarea:focus,
.keyboard-navigation a:focus {
  background-color: rgba(59, 130, 246, 0.1) !important;
  border-color: #3b82f6 !important;
}

/* Modo Lector de Pantalla */
.screen-reader-mode {
  /* Ocultar elementos decorativos */
}

.screen-reader-mode .decorative,
.screen-reader-mode .visually-hidden {
  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;
}

.screen-reader-mode img:not([alt]),
.screen-reader-mode img[alt=""] {
  border: 3px solid #ff0000 !important;
}

.screen-reader-mode button:not([aria-label]):not([aria-labelledby]),
.screen-reader-mode input:not([aria-label]):not([aria-labelledby]),
.screen-reader-mode select:not([aria-label]):not([aria-labelledby]),
.screen-reader-mode textarea:not([aria-label]):not([aria-labelledby]) {
  border: 2px solid #ffa500 !important;
}

/* Mejoras adicionales para accesibilidad */
.screen-reader-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;
}

/* Skip links para navegación por teclado */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: #000;
  color: #fff;
  padding: 8px;
  text-decoration: none;
  z-index: 1000;
  border-radius: 4px;
}

.skip-link:focus {
  top: 6px;
}

/* Mejoras para contraste en modo normal */
@media (prefers-contrast: high) {
  :root {
    --color-background: #ffffff;
    --color-text: #000000;
    --color-primary: #0000ff;
    --border: #000000;
  }
}

/* Respeta las preferencias del sistema para movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Mejoras para tamaños de fuente grandes */
@media (min-width: 1200px) {
  .extra-large-font {
    font-size: 1.25rem;
  }
  
  .large-font {
    font-size: 1.125rem;
  }
}

/* Estilos para sidebar fija */
.sidebar-fixed {
  position: fixed !important;
  top: 64px !important; /* Compensar altura del header */
  left: 0 !important;
  height: calc(100vh - 64px) !important; /* Restar altura del header */
  z-index: 1000 !important;
  transform: translateX(0) !important;
  margin: 0 !important;
  border-radius: 0 !important;
  border: none !important;
  border-right: 1px solid var(--border) !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  background-color: var(--color-background) !important;
}

.sidebar-fixed + main {
  margin-left: 280px !important;
}

/* Mejoras visuales para sidebar fija */
.sidebar-fixed .sidebar-header {
  border-radius: 0 !important;
  border-bottom: 1px solid var(--border) !important;
}

.sidebar-fixed .sidebar-content {
  border-radius: 0 !important;
}

/* Responsive para sidebar fija */
@media (max-width: 768px) {
  .sidebar-fixed {
    position: relative !important;
    top: 0 !important;
    height: auto !important;
    margin: 20px !important;
    border-radius: 20px !important;
    border: 1px solid var(--border) !important;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15), 0 0 0 1px var(--border), inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
  }
  
  .sidebar-fixed + main {
    margin-left: 0 !important;
  }
  
  .sidebar-fixed .sidebar-header {
    border-radius: 20px 20px 0 0 !important;
  }
}