/* assets/css/components/accommodations.css */

/* ==========================================================================
   1. Reading Ruler (Guided Focus Line)
   ========================================================================== */
.hl-reading-ruler-wrap {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  display: none;
}

.hl-reading-ruler-wrap.active {
  display: block;
}

.ruler-top-shade,
.ruler-bottom-shade {
  position: absolute;
  left: 0;
  right: 0;
  background-color: rgba(0, 0, 0, var(--ruler-dim-opacity, 0.45));
  backdrop-filter: blur(0.5px);
  pointer-events: none;
  transition: height 0.05s ease-out, top 0.05s ease-out;
}

.ruler-top-shade {
  top: 0;
  height: 0;
}

.ruler-bottom-shade {
  bottom: 0;
  top: 100%;
}

.ruler-guide-bar {
  position: absolute;
  left: 0;
  right: 0;
  pointer-events: none;
  border-top: 2px solid rgba(59, 130, 246, 0.85);
  border-bottom: 2px solid rgba(59, 130, 246, 0.85);
  background-color: rgba(59, 130, 246, 0.04);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.2);
  transition: top 0.05s ease-out, height 0.15s ease;
}

.ruler-center-line {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background-color: rgba(59, 130, 246, 0.3);
  transform: translateY(-50%);
}

/* ==========================================================================
   2. Screen Tint Layer (Irlen Syndrome / Visual Stress)
   ========================================================================== */
.hl-screen-tint-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9997;
  display: none;
  mix-blend-mode: multiply;
  transition: background-color 0.2s ease;
}

.hl-screen-tint-layer.active {
  display: block;
}

.dark .hl-screen-tint-layer,
.midnight .hl-screen-tint-layer {
  mix-blend-mode: color-burn;
}

/* ==========================================================================
   3. Bionic Reading Fixation
   ========================================================================== */
body.bionic-reading-active .bionic-fix {
  font-weight: 800 !important;
  color: var(--color-text-main);
  letter-spacing: -0.01em;
}

/* ==========================================================================
   4. Dyscalculia Math Operator Colorizer (HTML, MathJax SVG, and CHTML)
   ========================================================================== */
.math-op {
  display: inline-block;
  padding: 0 0.15em;
  font-weight: 800;
  border-radius: var(--radius-sm);
}

.math-plus, .math-op-plus { color: #10b981 !important; background: rgba(16, 185, 129, 0.12); }
.math-minus, .math-op-minus { color: #ef4444 !important; background: rgba(239, 68, 68, 0.12); }
.math-mult, .math-op-mult { color: #8b5cf6 !important; background: rgba(139, 92, 246, 0.12); }
.math-div, .math-op-div { color: #f59e0b !important; background: rgba(245, 158, 11, 0.12); }
.math-equals, .math-op-equals { color: #06b6d4 !important; background: rgba(6, 182, 212, 0.12); }

/* MathJax SVG Operator Highlighting */
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-2B"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-2B"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2B"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2B"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="002B"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="002B"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g.math-op-plus,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g.math-op-plus * {
  fill: #10b981 !important;
  color: #10b981 !important;
}

body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-2212"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-2212"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-2D"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-2D"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2212"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2212"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2D"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2D"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g.math-op-minus,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g.math-op-minus * {
  fill: #ef4444 !important;
  color: #ef4444 !important;
}

body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-D7"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-D7"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-22C5"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-22C5"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="D7"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="D7"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="00D7"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="00D7"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="22C5"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="22C5"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g.math-op-mult,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g.math-op-mult * {
  fill: #8b5cf6 !important;
  color: #8b5cf6 !important;
}

body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-F7"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-F7"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-2215"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-2215"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-2F"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-2F"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="F7"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="F7"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="00F7"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="00F7"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2215"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2215"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2F"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2F"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g.math-op-div,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g.math-op-div * {
  fill: #f59e0b !important;
  color: #f59e0b !important;
}

body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-3D"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-3D"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-2260"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-2260"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-3C"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-3C"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-3E"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-3E"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-2264"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-2264"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[href*="-2265"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] use[xlink\:href*="-2265"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="3D"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="3D"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="003D"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="003D"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2260"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2260"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="3C"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="3C"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="3E"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="3E"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2264"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2264"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2265"],
body.dyscalculia-mode-active mjx-container[jax="SVG"] g[data-c="2265"] *,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g.math-op-equals,
body.dyscalculia-mode-active mjx-container[jax="SVG"] g.math-op-equals * {
  fill: #06b6d4 !important;
  color: #06b6d4 !important;
}

/* MathJax CHTML and Standard MathML Operator Highlighting */
body.dyscalculia-mode-active mjx-mo,
body.dyscalculia-mode-active mo {
  font-weight: 800 !important;
}

body.dyscalculia-mode-active mjx-mo:is([data-c="2B"], [data-c="002B"]),
body.dyscalculia-mode-active mjx-c.mjx-c2B {
  color: #10b981 !important;
}

body.dyscalculia-mode-active mjx-mo:is([data-c="2212"], [data-c="2D"]),
body.dyscalculia-mode-active mjx-c.mjx-c2212,
body.dyscalculia-mode-active mjx-c.mjx-c2D {
  color: #ef4444 !important;
}

body.dyscalculia-mode-active mjx-mo:is([data-c="D7"], [data-c="00D7"], [data-c="22C5"]),
body.dyscalculia-mode-active mjx-c.mjx-cD7,
body.dyscalculia-mode-active mjx-c.mjx-c22C5 {
  color: #8b5cf6 !important;
}

body.dyscalculia-mode-active mjx-mo:is([data-c="F7"], [data-c="00F7"], [data-c="2215"], [data-c="2F"]),
body.dyscalculia-mode-active mjx-c.mjx-cF7,
body.dyscalculia-mode-active mjx-c.mjx-c2215 {
  color: #f59e0b !important;
}

body.dyscalculia-mode-active mjx-mo:is([data-c="3D"], [data-c="003D"], [data-c="2260"], [data-c="3C"], [data-c="3E"], [data-c="2264"], [data-c="2265"]),
body.dyscalculia-mode-active mjx-c.mjx-c3D,
body.dyscalculia-mode-active mjx-c.mjx-c2260 {
  color: #06b6d4 !important;
}

/* ==========================================================================
   5. Universal Accommodations & Focus Modal Dialog
   ========================================================================== */
.accommodations-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.accommodations-modal-backdrop.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.accommodations-modal-panel {
  background: var(--color-bg-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  width: 100%;
  max-width: 44rem;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: accModalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes accModalPop {
  from { transform: scale(0.94) translateY(12px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.acc-modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-surface);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.acc-header-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.acc-header-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.acc-header-text h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.acc-header-text p {
  margin: 0.15rem 0 0 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.acc-close-btn {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-base);
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.acc-close-btn:hover {
  background: color-mix(in srgb, var(--color-error) 10%, transparent);
  color: var(--color-error);
  border-color: var(--color-error);
}

.acc-modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Preset Cards */
.acc-presets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.75rem;
}

.acc-preset-card {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-surface);
  color: var(--color-text-main);
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  transition: all 0.2s;
}

.acc-preset-card:hover {
  border-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 8%, transparent);
  transform: translateY(-2px);
}

.acc-preset-card i {
  font-size: 1.25rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.acc-preset-name {
  font-size: 0.875rem;
  font-weight: 800;
}

.acc-preset-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Feature Row Controls */
.acc-feature-group {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.acc-group-title {
  font-size: 0.8125rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.acc-feature-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.acc-feature-info h4 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.acc-feature-info p {
  margin: 0.2rem 0 0 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Custom Switch Toggle */
.acc-switch {
  position: relative;
  display: inline-block;
  width: 3rem;
  height: 1.75rem;
  flex-shrink: 0;
}

.acc-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.acc-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--color-border);
  transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 2rem;
}

.acc-slider:before {
  position: absolute;
  content: "";
  height: 1.25rem;
  width: 1.25rem;
  left: 0.25rem;
  bottom: 0.25rem;
  background-color: white;
  transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.acc-switch input:checked + .acc-slider {
  background-color: var(--color-primary);
}

.acc-switch input:checked + .acc-slider:before {
  transform: translateX(1.25rem);
}

/* Tint Swatches */
.tint-swatches-grid {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.tint-swatch {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s;
}

.tint-swatch:hover {
  transform: scale(1.1);
}

.tint-swatch.selected {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-bg-base);
}

.swatch-peach { background-color: #fed7aa; }
.swatch-aqua { background-color: #a5f3fc; }
.swatch-yellow { background-color: #fef08a; }
.swatch-rose { background-color: #fbcfe8; }
.swatch-mint { background-color: #bbf7d0; }
.swatch-lavender { background-color: #ddd6fe; }

/* Sub-controls slider */
.acc-subcontrol {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  padding-left: 0.25rem;
}

.acc-range-input {
  flex-grow: 1;
  accent-color: var(--color-primary);
}

.acc-select {
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-md);
  background: var(--color-bg-base);
  border: 1px solid var(--color-border);
  color: var(--color-text-main);
  font-weight: 700;
  font-size: 0.875rem;
  outline: none;
}

.acc-select:focus {
  border-color: var(--color-primary);
}

/* Toast */
.hl-acc-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(15, 23, 42, 0.95);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  z-index: 10001;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.hl-acc-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* High Contrast Mode Overrides */
.theme-contrast .accommodations-modal-panel,
.theme-contrast .acc-feature-group,
.theme-contrast .acc-preset-card {
  background: #000000 !important;
  color: #ffff00 !important;
  border: 2px solid #ffff00 !important;
}

.theme-contrast .acc-header-text h2,
.theme-contrast .acc-feature-info h4 {
  color: #ffff00 !important;
}

.theme-contrast .acc-switch input:checked + .acc-slider {
  background-color: #ffff00 !important;
}

.theme-contrast .acc-switch input:checked + .acc-slider:before {
  background-color: #000000 !important;
}