/* ==========================================================================
   Accessibility & Reading Preferences Panel
   ========================================================================== */

/* Trigger Button */
.accessibility-trigger {
  position: fixed;
  left: max(1rem, env(safe-area-inset-left));
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: 1000; /* Stays above general content but below cookie banner (1000/2000) and chatbot */
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary, #01696F);
  color: #ffffff;
  border: 2px solid transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: transform 0.2s ease, background-color 0.2s ease, bottom 0.3s ease;
}

.accessibility-trigger:hover,
.accessibility-trigger:focus-visible {
  transform: scale(1.05);
  background-color: var(--color-primary-hover, #015358);
}

.accessibility-trigger svg {
  width: 24px;
  height: 24px;
}

/* Elevate if cookie banner is visible */
body:has(.cookie-banner:not(.cookie-banner--hidden)) .accessibility-trigger {
  bottom: calc(max(1rem, env(safe-area-inset-bottom)) + 120px);
}

/* Dialog Overlay */
.accessibility-dialog {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.5);
  padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
}

.accessibility-dialog[hidden] {
  display: none;
}

/* Dialog Container */
.accessibility-dialog__content {
  background: var(--color-surface, #ffffff);
  color: var(--color-text, #1a2e2f);
  border-radius: var(--radius-xl, 1rem);
  width: 100%;
  max-width: 400px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.5rem;
  box-shadow: var(--shadow-xl, 0 24px 60px rgba(0,0,0,0.12));
  position: relative;
}

[data-theme="dark"] .accessibility-dialog__content {
  background: var(--color-surface, #142223);
  color: var(--color-text, #d4e4e5);
  border: 1px solid var(--color-border, #2a4243);
}

.accessibility-dialog__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.accessibility-dialog__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
}

.accessibility-dialog__close {
  background: transparent;
  border: none;
  color: var(--color-text-muted, #5a7172);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
}

.accessibility-dialog__close:hover,
.accessibility-dialog__close:focus-visible {
  background: var(--color-surface-alt, #eef3f3);
  color: var(--color-text, #1a2e2f);
}

.accessibility-dialog__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted, #5a7172);
  margin-bottom: 1.5rem;
}

/* Dialog Controls */
.a11y-fieldset {
  border: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
}

.a11y-legend {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.a11y-radio-group {
  display: flex;
  gap: 0.5rem;
}

.a11y-radio-label {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  padding: 0.5rem;
  border: 1px solid var(--color-border, #d0dada);
  border-radius: var(--radius-md, 0.5rem);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  text-align: center;
}

.a11y-radio-input {
  position: absolute;
  opacity: 0;
}

.a11y-radio-input:checked + .a11y-radio-label {
  background-color: var(--color-primary-light, #e0f0f1);
  border-color: var(--color-primary, #01696F);
  color: var(--color-primary, #01696F);
}

.a11y-radio-input:focus-visible + .a11y-radio-label {
  outline: 2px solid var(--color-primary, #01696F);
  outline-offset: 2px;
}

.a11y-checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.a11y-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  font-size: 0.95rem;
}

.a11y-checkbox-input {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--color-primary, #01696F);
  cursor: pointer;
}

.a11y-reset-btn {
  width: 100%;
  padding: 0.75rem;
  background-color: var(--color-surface-alt, #eef3f3);
  color: var(--color-text, #1a2e2f);
  border: 1px solid var(--color-border, #d0dada);
  border-radius: var(--radius-md, 0.5rem);
  font-weight: 600;
  cursor: pointer;
  margin-top: 1rem;
}

.a11y-reset-btn:hover,
.a11y-reset-btn:focus-visible {
  background-color: var(--color-border, #d0dada);
}

[data-theme="dark"] .a11y-reset-btn {
  background-color: var(--color-surface-alt, #1a2c2d);
  color: var(--color-text, #d4e4e5);
  border-color: var(--color-border, #2a4243);
}


/* ==========================================================================
   Modifiers
   ========================================================================== */

/* Text Size */
html.a11y-text-default {
  font-size: 100%;
}

html.a11y-text-large {
  font-size: 112.5%; /* ~18px base */
}

html.a11y-text-largest {
  font-size: 125%; /* ~20px base */
}

/* Reduce Motion */
html.a11y-reduce-motion *,
html.a11y-reduce-motion *::before,
html.a11y-reduce-motion *::after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
  scroll-behavior: auto !important;
}

/* Underline Links */
/* Target content links but exclude buttons, nav items, icons, and structural links */
html.a11y-underlines a:not(.btn):not(.mobile-sticky-action):not(.accessibility-trigger):not(.header__logo):not(.footer__social-link) {
  text-decoration: underline !important;
  text-underline-offset: 0.15em !important;
  text-decoration-thickness: 0.12em !important;
}

/* Readability Spacing */
html.a11y-readable-spacing p,
html.a11y-readable-spacing li,
html.a11y-readable-spacing td,
html.a11y-readable-spacing th {
  line-height: 1.8 !important;
}

html.a11y-readable-spacing p + p,
html.a11y-readable-spacing li {
  margin-bottom: 1em !important;
}

html.a11y-readable-spacing p,
html.a11y-readable-spacing li,
html.a11y-readable-spacing h1,
html.a11y-readable-spacing h2,
html.a11y-readable-spacing h3,
html.a11y-readable-spacing h4,
html.a11y-readable-spacing h5,
html.a11y-readable-spacing h6 {
  letter-spacing: 0.015em !important;
  word-spacing: 0.06em !important;
}

/* Stronger Focus Outline */
html.a11y-strong-focus *:focus-visible {
  outline: 3px solid #f4b400 !important; /* High contrast amber/gold */
  outline-offset: 4px !important;
  box-shadow: 0 0 0 6px rgba(244, 180, 0, 0.35) !important;
}

/* High Contrast Mode */
/* Forces backgrounds to pure black/white and text to high contrast equivalents */
html.a11y-high-contrast {
  --color-text: #000000 !important;
  --color-text-muted: #111111 !important;
  --color-text-faint: #222222 !important;
  --color-bg: #ffffff !important;
  --color-surface: #ffffff !important;
  --color-surface-alt: #f0f0f0 !important;
  --color-border: #000000 !important;
  --color-primary: #0000ee !important; /* Standard high contrast link color */
  --color-primary-hover: #0000aa !important;
  --color-primary-light: #e0e0ff !important;

  background-color: #ffffff !important;
  color: #000000 !important;
}

/* High contrast overrides for specific elements to ensure legibility */
html.a11y-high-contrast .btn--primary {
  background-color: #000000 !important;
  color: #ffffff !important;
  border: 2px solid #000000 !important;
}

html.a11y-high-contrast .btn--outline {
  border: 2px solid #000000 !important;
  color: #000000 !important;
}

html.a11y-high-contrast .card,
html.a11y-high-contrast .footer {
  border: 1px solid #000000 !important;
  background-color: #ffffff !important;
}

/* Dark theme specific high contrast overrides */
html.a11y-high-contrast[data-theme="dark"] {
  --color-text: #ffffff !important;
  --color-text-muted: #eeeeee !important;
  --color-text-faint: #dddddd !important;
  --color-bg: #000000 !important;
  --color-surface: #000000 !important;
  --color-surface-alt: #111111 !important;
  --color-border: #ffffff !important;
  --color-primary: #ffff00 !important; /* Yellow is common for dark high contrast links */
  --color-primary-hover: #cccc00 !important;
  --color-primary-light: #333300 !important;

  background-color: #000000 !important;
  color: #ffffff !important;
}

html.a11y-high-contrast[data-theme="dark"] .btn--primary {
  background-color: #ffffff !important;
  color: #000000 !important;
  border: 2px solid #ffffff !important;
}

html.a11y-high-contrast[data-theme="dark"] .btn--outline {
  border: 2px solid #ffffff !important;
  color: #ffffff !important;
}

html.a11y-high-contrast[data-theme="dark"] .card,
html.a11y-high-contrast[data-theme="dark"] .footer {
  border: 1px solid #ffffff !important;
  background-color: #000000 !important;
}