/* ══════════════════════════════════════════════════════════════════════════
   HOJA DE ESTILOS DE ACCESIBILIDAD UNIVERSAL — ReaderPDF
   ══════════════════════════════════════════════════════════════════════════ */

@import url('https://cdn.jsdelivr.net/npm/opendyslexic@1.0.3/dist/opendyslexic.css');

:root {
  --accessibility-font-scale: 1.0;
}

/* ── 1. MODO DISLEXIA ── */
body.accessibility-dyslexia,
body.accessibility-dyslexia p,
body.accessibility-dyslexia span,
body.accessibility-dyslexia div,
body.accessibility-dyslexia input,
body.accessibility-dyslexia textarea,
body.accessibility-dyslexia button,
body.accessibility-dyslexia a,
body.accessibility-dyslexia select,
body.accessibility-dyslexia .text-box,
body.accessibility-dyslexia #editorArea,
body.accessibility-dyslexia .editor-area,
body.accessibility-dyslexia .lang-content {
  font-family: 'OpenDyslexic', 'Comic Sans MS', 'Century Gothic', sans-serif !important;
  letter-spacing: 0.15em !important;
  word-spacing: 0.3em !important;
  line-height: 2.0 !important;
}

/* ── 2. ESCALA DE TEXTO ── */
body.accessibility-scaled .text-box,
body.accessibility-scaled #textBox,
body.accessibility-scaled #editorArea,
body.accessibility-scaled .editor-area,
body.accessibility-scaled .lang-content,
body.accessibility-scaled p,
body.accessibility-scaled li,
body.accessibility-scaled span:not(.btn-text):not(.btn-spinner),
body.accessibility-scaled div:not(.acc-panel):not(.acc-header) {
  font-size: calc(14px * var(--accessibility-font-scale)) !important;
}

/* ── 3. GUÍA Y MÁSCARA DE LECTURA ── */
#accessibilityReadingGuide {
  position: fixed;
  left: 0;
  width: 100vw;
  height: 6px;
  background: #10b981; /* Emerald high-contrast green */
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.8);
  pointer-events: none;
  z-index: 999999;
  display: none;
  transition: top 0.05s ease-out;
}

.accessibility-reading-mask {
  position: fixed;
  left: 0;
  width: 100vw;
  background: rgba(11, 15, 25, 0.65);
  pointer-events: none;
  z-index: 999998;
  display: none;
}
#accessibilityMaskTop {
  top: 0;
}
#accessibilityMaskBottom {
  bottom: 0;
}

/* ── 4. TEMAS DE CONTRASTE ── */
/* MODO SEPIA */
body.accessibility-sepia {
  background: #f4ecd8 !important;
  background-image: none !important;
}
body.accessibility-sepia * {
  color: #433422 !important;
  border-color: rgba(67, 52, 34, 0.15) !important;
}
body.accessibility-sepia header,
body.accessibility-sepia .card,
body.accessibility-sepia .editor-panel-card,
body.accessibility-sepia .lexicon-card,
body.accessibility-sepia .fav-panel,
body.accessibility-sepia .search-widget-card,
body.accessibility-sepia .lang-card,
body.accessibility-sepia .acc-panel {
  background: #fcf6e8 !important;
  box-shadow: 0 4px 20px rgba(67, 52, 34, 0.06) !important;
  border: 1px solid rgba(67, 52, 34, 0.15) !important;
}
body.accessibility-sepia a,
body.accessibility-sepia button,
body.accessibility-sepia select,
body.accessibility-sepia input,
body.accessibility-sepia textarea {
  background: #efe4cb !important;
  color: #433422 !important;
}
body.accessibility-sepia button:hover,
body.accessibility-sepia a:hover {
  background: #e2d5b6 !important;
}

/* ALTO CONTRASTE (Amarillo sobre Negro) */
body.accessibility-highcontrast {
  background: #000000 !important;
  background-image: none !important;
  color: #ffff00 !important;
}
body.accessibility-highcontrast * {
  background-color: #000000 !important;
  color: #ffff00 !important;
  border-color: #ffff00 !important;
  box-shadow: none !important;
  text-shadow: none !important;
  background-image: none !important;
}
body.accessibility-highcontrast a,
body.accessibility-highcontrast button,
body.accessibility-highcontrast select,
body.accessibility-highcontrast input,
body.accessibility-highcontrast textarea {
  border: 2px solid #ffff00 !important;
  background-color: #000000 !important;
  color: #ffff00 !important;
  border-radius: 4px !important;
  font-weight: bold !important;
}
body.accessibility-highcontrast a:hover,
body.accessibility-highcontrast button:hover {
  background-color: #ffff00 !important;
  color: #000000 !important;
}

/* MODO NOCHE FORZADO */
body.accessibility-night {
  background: #090d16 !important;
  background-image: none !important;
}
body.accessibility-night * {
  color: #f1f5f9 !important;
  border-color: rgba(255, 255, 255, 0.1) !important;
}
body.accessibility-night header,
body.accessibility-night .card,
body.accessibility-night .editor-panel-card,
body.accessibility-night .lexicon-card,
body.accessibility-night .fav-panel,
body.accessibility-night .search-widget-card,
body.accessibility-night .lang-card,
body.accessibility-night .acc-panel {
  background: #111827 !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4) !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
}
body.accessibility-night a,
body.accessibility-night button,
body.accessibility-night select,
body.accessibility-night input,
body.accessibility-night textarea {
  background: #1f2937 !important;
  color: #f1f5f9 !important;
}
body.accessibility-night button:hover,
body.accessibility-night a:hover {
  background: #374151 !important;
}


/* ── 5. EL WIDGET FLOTANTE PREMIUM ── */
.acc-widget-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, #195B8B, #0B3660);
  color: #ffffff;
  border: 2px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 8px 32px rgba(11, 54, 96, 0.35);
  cursor: pointer;
  z-index: 9999999;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
}
.acc-widget-btn:hover {
  transform: scale(1.08) rotate(8deg);
  box-shadow: 0 12px 40px rgba(11, 54, 96, 0.45);
}
.acc-widget-btn:focus-visible {
  border-color: #10b981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.4);
}

.acc-panel {
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 320px;
  max-width: calc(100vw - 48px);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.18);
  border-radius: 20px;
  padding: 20px;
  z-index: 9999999;
  display: flex;
  flex-direction: column;
  gap: 16px;
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
  transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}
.acc-panel.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.acc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  padding-bottom: 10px;
}
.acc-title {
  font-size: 15px;
  font-weight: 700;
  color: #0f172a;
  display: flex;
  align-items: center;
  gap: 8px;
}
.acc-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  color: #64748b;
  transition: color 0.2s;
  padding: 4px;
}
.acc-close:hover {
  color: #ef4444;
}

.acc-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.acc-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #64748b;
}

.acc-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 500;
  color: #334155;
}

/* Custom switch button */
.acc-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}
.acc-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.acc-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: #cbd5e1;
  transition: .3s;
  border-radius: 24px;
}
.acc-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
input:checked + .acc-slider {
  background-color: #10b981;
}
input:checked + .acc-slider:before {
  transform: translateX(20px);
}
input:focus-visible + .acc-slider {
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.4);
}

/* Font scale controls */
.acc-scale-btns {
  display: flex;
  align-items: center;
  gap: 10px;
}
.acc-scale-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #ffffff;
  color: #0f172a;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.acc-scale-btn:hover {
  background: rgba(15, 23, 42, 0.05);
  border-color: #195B8B;
}
.acc-scale-val {
  font-size: 13px;
  font-weight: 600;
  min-width: 40px;
  text-align: center;
}

/* Contrast selections grid */
.acc-theme-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.acc-theme-btn {
  height: 36px;
  border-radius: 8px;
  border: 1.5px solid rgba(15, 23, 42, 0.1);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}
.acc-theme-btn.active {
  border-color: #195B8B;
  box-shadow: 0 0 0 2px rgba(25, 91, 139, 0.18);
}
.acc-theme-normal { background: #ffffff; color: #0f172a; }
.acc-theme-sepia { background: #fcf6e8; color: #433422; border-color: rgba(67, 52, 34, 0.15); }
.acc-theme-high { background: #000000; color: #ffff00; border-color: #ffff00; }
.acc-theme-night { background: #090d16; color: #f1f5f9; border-color: rgba(255, 255, 255, 0.15); }

/* Shortcut details text */
.acc-shortcuts {
  font-size: 11px;
  line-height: 1.45;
  color: #64748b;
  background: rgba(15, 23, 42, 0.04);
  border-radius: 10px;
  padding: 8px 12px;
  margin-top: 4px;
}
.acc-shortcuts-title {
  font-weight: 700;
  margin-bottom: 4px;
  color: #334155;
  display: flex;
  align-items: center;
  gap: 4px;
}