/* ==========================================================================
   Skip link
   ========================================================================== */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  z-index: 10000;
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-white);
  background: var(--color-text);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-sm);
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
}

/* ==========================================================================
   Floating accessibility widget
   ========================================================================== */

.a11y-widget {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 99990;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0;
  font-family: var(--font-body);
  pointer-events: none;
}

.a11y-widget__trigger {
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  width: 56px;
  min-height: 56px;
  padding: 0.5rem 0.35rem;
  background: var(--color-gold-dark, #967832);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  box-shadow: -4px 4px 24px rgba(0, 0, 0, 0.22);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.a11y-widget__trigger:hover,
.a11y-widget__trigger:focus-visible {
  background: var(--color-gold, #b8943f);
  transform: translateX(-2px);
  outline: none;
  box-shadow: -6px 6px 24px rgba(0, 0, 0, 0.28), 0 0 0 3px var(--color-gold-light);
}

.a11y-widget__trigger svg {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

.a11y-widget__label {
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.1;
  max-width: 44px;
  text-align: center;
}

.a11y-widget__panel {
  pointer-events: auto;
  position: absolute;
  right: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%);
  width: min(280px, calc(100vw - 80px));
  max-height: min(80vh, 520px);
  overflow-y: auto;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-md);
}

.a11y-widget__panel[hidden] {
  display: none !important;
}

.a11y-widget__title {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--color-text);
}

.a11y-widget__note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.45;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border-light);
}

.a11y-widget__options {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.a11y-widget__option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
  width: 100%;
  min-height: 44px;
  padding: 0.625rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-cream);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.a11y-widget__option:hover,
.a11y-widget__option:focus-visible {
  border-color: var(--color-gold);
  background: var(--color-white);
  outline: none;
}

.a11y-widget__option[aria-pressed='true'] {
  background: var(--color-gold-light);
  border-color: var(--color-gold);
  font-weight: 600;
}

.a11y-widget__option--reset {
  margin-top: var(--space-xs);
  background: var(--color-white);
  color: var(--color-gold-dark);
  font-weight: 600;
}

/* Applied accessibility settings on <html> */
html.a11y-text-sm {
  font-size: 93.75%;
}

html.a11y-text-xs {
  font-size: 87.5%;
}

html.a11y-text-lg {
  font-size: 112.5%;
}

html.a11y-text-xl {
  font-size: 125%;
}

html.a11y-grayscale {
  filter: grayscale(100%);
}

html.a11y-high-contrast {
  filter: contrast(1.35);
}

html.a11y-high-contrast body {
  background: #fff;
  color: #000;
}

html.a11y-underline-links a:not(.btn):not(.a11y-widget__option):not(.a11y-widget__trigger) {
  text-decoration: underline !important;
  text-underline-offset: 3px;
}

html.a11y-readable-font body,
html.a11y-readable-font button,
html.a11y-readable-font input,
html.a11y-readable-font select,
html.a11y-readable-font textarea {
  font-family: Arial, Helvetica, sans-serif !important;
}

html.a11y-readable-font h1,
html.a11y-readable-font h2,
html.a11y-readable-font h3,
html.a11y-readable-font h4 {
  font-family: Arial, Helvetica, sans-serif !important;
}

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;
}

@media (max-width: 767px) {
  .a11y-widget {
    top: auto;
    bottom: calc(5.5rem + env(safe-area-inset-bottom, 0px));
    transform: none;
  }

  .a11y-widget__panel {
    top: auto;
    bottom: 0;
    transform: none;
    right: calc(100% + 8px);
  }
}

@media (min-width: 768px) {
  .fab-book {
    /* FAB hidden on desktop — no overlap concern */
  }
}
