:root {
  --acc-btn-bg: #046eb4;
  --acc-btn-color: #fff;
  --acc-menu-bg: #fff;
  --acc-menu-text: #333;
}

/* Floating Button */
.acc-fab {
  position: fixed;
  right: 20px;
  bottom: 100px; /* Above where VLibras usually sits */
  width: 50px;
  height: 50px;
  background-color: var(--acc-btn-bg);
  color: var(--acc-btn-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  cursor: pointer;
  z-index: 9999;
  transition: transform 0.3s ease;
  border: none;
}

.acc-fab:hover {
  transform: scale(1.1);
}

.acc-fab:focus {
  outline: 3px solid #ffcc00;
}

/* Accessibility Menu */
.acc-menu {
  position: fixed;
  right: 80px;
  bottom: 100px;
  background-color: var(--acc-menu-bg);
  border-radius: 8px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transform: translateX(20px);
  transition: all 0.3s ease;
  width: 200px;
}

.acc-menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.acc-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 4px;
  color: var(--acc-menu-text);
  font-weight: 500;
  transition: background 0.2s;
  text-align: left;
  font-family: "Outfit", sans-serif; /* Setup font matching site */
  font-size: 1rem;
}

.acc-item:hover {
  background-color: #f0f0f0;
}

.acc-item i {
  width: 20px;
  text-align: center;
  color: var(--acc-btn-bg);
}

/* High Contrast Mode Override */
body.high-contrast {
  background-color: #000 !important;
  color: #fff !important;
}

body.high-contrast * {
  background-color: #000 !important;
  color: #fff !important;
  border-color: #fff !important;
  box-shadow: none !important;
}

body.high-contrast img,
body.high-contrast .hero-bg-overlay,
body.high-contrast .about-bg-decoration,
body.high-contrast .service-card::after {
  display: none !important;
}

body.high-contrast a {
  color: #ffff00 !important;
  text-decoration: underline !important;
}

body.high-contrast button,
body.high-contrast input {
  background-color: #333 !important;
  color: #fff !important;
  border: 1px solid #fff !important;
}

body.high-contrast .acc-fab,
body.high-contrast .acc-menu {
  border: 2px solid #fff !important;
}

/* Font resize helpers handled by JS changing 'html' font-size percentage, 
   using REM units in main CSS ensures scaling. 
*/

/* Dyslexia Friendly Mode */
body.dyslexia-mode {
    font-family: 'Comic Sans MS', 'Verdana', sans-serif !important;
    line-height: 1.6 !important;
    letter-spacing: 0.1em !important;
    word-spacing: 0.2em !important;
}

body.dyslexia-mode h1,
body.dyslexia-mode h2,
body.dyslexia-mode h3,
body.dyslexia-mode h4,
body.dyslexia-mode h5,
body.dyslexia-mode h6 {
    font-family: 'Comic Sans MS', 'Verdana', sans-serif !important;
    letter-spacing: 0.15em !important;
    margin-bottom: 2em !important; /* Mais espaço entre títulos */
}

body.dyslexia-mode p, 
body.dyslexia-mode li,
body.dyslexia-mode a {
    margin-bottom: 1.5em !important;
}

/* Reading Status Highlight */
.reading-highlight {
    background-color: #ffeb3b !important;
    color: #000 !important;
    outline: 2px solid #f9a825 !important;
    box-shadow: 0 0 10px rgba(0,0,0,0.2) !important;
}

/* Reading active indicator */
.reading-status-popup {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 10000;
    font-weight: 600;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.reading-status-popup.active {
    opacity: 1;
    visibility: visible;
    bottom: 40px;
}

.reading-equalizer {
    display: flex;
    gap: 3px;
    height: 15px;
    align-items: flex-end;
}

.reading-equalizer span {
    width: 3px;
    background-color: white;
    animation: equalize 1s infinite;
}

.reading-equalizer span:nth-child(1) { animation-delay: 0.1s; height: 6px; }
.reading-equalizer span:nth-child(2) { animation-delay: 0.2s; height: 12px; }
.reading-equalizer span:nth-child(3) { animation-delay: 0.3s; height: 8px; }
.reading-equalizer span:nth-child(4) { animation-delay: 0.4s; height: 14px; }

@keyframes equalize {
    0%, 100% { height: 4px; }
    50% { height: 100%; }
}