/*
 * EMRA Accessibility — Panel UI
 * emra-a11y-panel.css  |  v1.0.0
 *
 * Scoped to .emra-a11y-* classes throughout.
 * Uses tokens from emra-a11y-tokens.css.
 * No CSS nesting, no modern syntax — widest possible browser support.
 */

/* ── Pause-animations data attribute ────────────────────────────────────────
 * Separate from reduce-motion: pauses CSS animation-play-state without
 * removing transitions. RevSlider is handled via JS in emra-a11y-panel.js.
 */

[data-emra-a11y-pause-animations="true"] *,
[data-emra-a11y-pause-animations="true"] *::before,
[data-emra-a11y-pause-animations="true"] *::after {
  animation-play-state: paused !important;
}

/* ============================================
   Accessibility trigger button — v1.0.1
   Visible, recognizable, professional
   ============================================ */
.emra-a11y-trigger {
  position: fixed;
  bottom: 20px;
  left: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: #0066CC;
  border: 3px solid #ffffff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: 0;
  z-index: 99998;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.2s ease, box-shadow 0.2s ease;
  pointer-events: none;
  -webkit-appearance: none;
  appearance: none;
}

.emra-a11y-trigger.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.emra-a11y-trigger:hover {
  background-color: #0052a3;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}

.emra-a11y-trigger:focus-visible {
  outline: none;
  background-color: #0052a3;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35), 0 0 0 4px rgba(0, 102, 204, 0.4);
}

.emra-a11y-trigger:active {
  transform: translateY(0) scale(0.96);
}

.emra-a11y-trigger svg {
  width: 32px;
  height: 32px;
  fill: #ffffff;
  pointer-events: none;
  display: block;
}

/* Admin setting: bottom-right position override */
.emra-a11y-trigger.position-bottom-right {
  left: auto;
  right: 20px;
}

/* Mobile sizing */
@media (max-width: 600px) {
  .emra-a11y-trigger {
    width: 48px;
    height: 48px;
    bottom: 16px;
    left: 16px;
  }
  .emra-a11y-trigger svg {
    width: 28px;
    height: 28px;
  }
  .emra-a11y-trigger.position-bottom-right {
    right: 16px;
    left: auto;
  }
}

/* Reduced motion: no fade or transform animation */
@media (prefers-reduced-motion: reduce) {
  .emra-a11y-trigger {
    transition: background-color 0.01s, box-shadow 0.01s;
    transform: none;
  }
  .emra-a11y-trigger.is-visible {
    transform: none;
  }
}

[data-emra-a11y-reduce-motion="true"] .emra-a11y-trigger {
  transition: background-color 0.01s, box-shadow 0.01s;
  transform: none;
}

[data-emra-a11y-reduce-motion="true"] .emra-a11y-trigger.is-visible {
  transform: none;
}

/* ── Panel ───────────────────────────────────────────────────────────────── */

.emra-a11y-panel {
  position: fixed;
  bottom: 88px; /* above the trigger: 20px gap + 56px button + 12px margin */
  left: 16px;
  z-index: 999999; /* one above trigger */
  width: 300px;
  max-width: calc(100vw - 32px);
  max-height: calc(100vh - 100px);
  overflow-y: auto;

  background-color: var(--emra-a11y-bg);
  border: 1px solid var(--emra-a11y-border);
  border-radius: 8px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);

  /* Theme reset — force our own typography so themes can't bleed in. */
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--emra-a11y-text);
  box-sizing: border-box;

  /* Slide-in animation — suppressed by reduce-motion data attribute. */
  transform-origin: bottom left;
  animation: emra-panel-in 0.18s ease;
}

.emra-a11y-panel--right {
  left: auto;
  right: 16px;
  transform-origin: bottom right;
}

/* Hidden state — use [hidden] attribute so JS-free environments work too. */
.emra-a11y-panel[hidden] {
  display: none;
}

@keyframes emra-panel-in {
  from { opacity: 0; transform: scale(0.95) translateY(8px); }
  to   { opacity: 1; transform: scale(1)    translateY(0);   }
}

/* Respect both the OS preference and the panel's own reduce-motion toggle. */
[data-emra-a11y-reduce-motion="true"] .emra-a11y-panel,
[data-emra-a11y-pause-animations="true"] .emra-a11y-panel {
  animation: none;
}

@media (prefers-reduced-motion: reduce) {
  .emra-a11y-panel {
    animation: none;
  }
}

/* ── Panel header ────────────────────────────────────────────────────────── */

.emra-a11y-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--emra-a11y-border);
}

.emra-a11y-panel__title {
  margin: 0;
  padding: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--emra-a11y-text);
  line-height: 1.3;
  /* Override any theme heading styles. */
  font-family: inherit;
  letter-spacing: var(--emra-a11y-letter-spacing);
  text-transform: none;
  border: none;
  background: none;
}

.emra-a11y-panel__close {
  width: 28px;
  height: 28px;
  padding: 0;
  flex-shrink: 0;
  border: 1px solid var(--emra-a11y-border);
  border-radius: 4px;
  background: transparent;
  color: var(--emra-a11y-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
  transition: background-color var(--emra-a11y-transition);
}

.emra-a11y-panel__close:hover {
  background-color: var(--emra-a11y-bg-muted);
}

.emra-a11y-panel__close:focus-visible {
  outline: var(--emra-a11y-focus-ring-width) solid var(--emra-a11y-focus-ring);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ── Panel body ──────────────────────────────────────────────────────────── */

.emra-a11y-panel__body {
  padding: 12px 16px 16px;
}

/* ── Text size fieldset ──────────────────────────────────────────────────── */

.emra-a11y-panel__fieldset {
  margin: 0 0 14px;
  padding: 0;
  border: none;
}

.emra-a11y-panel__legend {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--emra-a11y-text-secondary);
  margin-bottom: 8px;
  padding: 0;
  float: none;
  width: auto;
}

.emra-a11y-panel__radios {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.emra-a11y-panel__radio-label {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border: 1px solid var(--emra-a11y-border);
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  color: var(--emra-a11y-text);
  background: transparent;
  transition: background-color var(--emra-a11y-transition),
              border-color var(--emra-a11y-transition);
  /* Reset theme label styles. */
  font-family: inherit;
  font-weight: normal;
  line-height: 1.4;
  margin: 0;
}

.emra-a11y-panel__radio-label:hover {
  background-color: var(--emra-a11y-bg-muted);
  border-color: var(--emra-a11y-link);
}

.emra-a11y-panel__radio-label input[type="radio"] {
  /* Visually hidden but still focusable — we style the label instead. */
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  margin: 0;
}

.emra-a11y-panel__radio-label input[type="radio"]:checked + span,
.emra-a11y-panel__radio-label:has(input[type="radio"]:checked) {
  background-color: var(--emra-a11y-link);
  border-color: var(--emra-a11y-link);
  color: var(--emra-a11y-text-inverse);
}

/* :has() fallback — JS also adds .is-checked class to the label. */
.emra-a11y-panel__radio-label.is-checked {
  background-color: var(--emra-a11y-link);
  border-color: var(--emra-a11y-link);
  color: var(--emra-a11y-text-inverse);
}

.emra-a11y-panel__radio-label input[type="radio"]:focus-visible ~ span {
  outline: var(--emra-a11y-focus-ring-width) solid var(--emra-a11y-focus-ring);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Focus on the label itself (for browsers that put focus on label). */
.emra-a11y-panel__radio-label:focus-within {
  outline: var(--emra-a11y-focus-ring-width) solid var(--emra-a11y-focus-ring);
  outline-offset: 2px;
}

/* ── Toggle rows ─────────────────────────────────────────────────────────── */

.emra-a11y-panel__toggles {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 14px;
}

.emra-a11y-panel__toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--emra-a11y-bg-muted);
}

.emra-a11y-panel__toggle-row:last-child {
  border-bottom: none;
}

.emra-a11y-panel__toggle-label {
  font-size: 13px;
  color: var(--emra-a11y-text);
  line-height: 1.4;
  flex: 1;
}

/* The toggle button itself. aria-pressed communicates state to AT. */
.emra-a11y-panel__toggle {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 2px 4px 2px 2px;
  border: 1px solid var(--emra-a11y-border);
  border-radius: 20px;
  background: transparent;
  cursor: pointer;
  font-size: 11px;
  font-family: inherit;
  color: var(--emra-a11y-text-secondary);
  line-height: 1;
  transition: background-color var(--emra-a11y-transition),
              border-color var(--emra-a11y-transition);
  min-width: 56px;
}

.emra-a11y-panel__toggle:hover {
  border-color: var(--emra-a11y-link);
}

.emra-a11y-panel__toggle:focus-visible {
  outline: var(--emra-a11y-focus-ring-width) solid var(--emra-a11y-focus-ring);
  outline-offset: 2px;
  border-radius: 20px;
}

/* Track + thumb */
.emra-a11y-panel__toggle-track {
  width: 28px;
  height: 16px;
  border-radius: 8px;
  background-color: var(--emra-a11y-border);
  position: relative;
  flex-shrink: 0;
  transition: background-color var(--emra-a11y-transition);
}

.emra-a11y-panel__toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: #ffffff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform var(--emra-a11y-transition);
}

/* Pressed (on) state */
.emra-a11y-panel__toggle[aria-pressed="true"] {
  background-color: var(--emra-a11y-link);
  border-color: var(--emra-a11y-link);
  color: var(--emra-a11y-text-inverse);
}

.emra-a11y-panel__toggle[aria-pressed="true"] .emra-a11y-panel__toggle-track {
  background-color: rgba(255, 255, 255, 0.35);
}

.emra-a11y-panel__toggle[aria-pressed="true"] .emra-a11y-panel__toggle-thumb {
  transform: translateX(12px);
}

/* State label text — hidden from AT (aria-pressed communicates state). */
.emra-a11y-panel__toggle-state {
  font-size: 11px;
  font-weight: 600;
  min-width: 16px;
  text-align: right;
}

/* ── Statement link ──────────────────────────────────────────────────────── */

.emra-a11y-panel__statement {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--emra-a11y-link);
  text-decoration: none;
  margin-top: 4px;
}

.emra-a11y-panel__statement:hover {
  text-decoration: underline;
  color: var(--emra-a11y-link-hover);
}

.emra-a11y-panel__statement:focus-visible {
  outline: var(--emra-a11y-focus-ring-width) solid var(--emra-a11y-focus-ring);
  outline-offset: 2px;
  border-radius: 2px;
}