/* ===== ACCESSIBILITY PANEL ===== */
.a11y-toggle {
  position: fixed;
  top: calc(var(--header-height) + 16px);
  right: 16px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
  z-index: var(--z-accessibility);
  transition: all var(--transition-fast);
}

.a11y-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.a11y-toggle svg {
  width: 22px;
  height: 22px;
}

.a11y-panel {
  position: fixed;
  top: calc(var(--header-height) + 70px);
  right: 16px;
  width: 240px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-accessibility);
  padding: var(--space-5);
  transform: translateY(-10px) scale(0.95);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.a11y-panel.open {
  transform: translateY(0) scale(1);
  opacity: 1;
  visibility: visible;
}

.a11y-panel h4 {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.a11y-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.a11y-option:last-child {
  border-bottom: none;
}

.a11y-label {
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.a11y-controls {
  display: flex;
  gap: var(--space-1);
}

.a11y-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text);
  background: var(--color-bg);
  transition: all var(--transition-fast);
}

.a11y-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.a11y-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary-dark);
}

.a11y-reset {
  display: block;
  width: 100%;
  padding: var(--space-2);
  margin-top: var(--space-3);
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.a11y-reset:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ===== HIGH CONTRAST MODE ===== */
body.high-contrast {
  --color-bg: #000000;
  --color-bg-alt: #1a1a1a;
  --color-text: #FFFFFF;
  --color-text-light: #CCCCCC;
  --color-border: #555555;
  --color-border-light: #333333;
  --color-primary: #FFFFFF;
  --color-primary-light: #AACCFF;
  --color-primary-dark: #000000;
  --color-accent: #FFD700;
  --color-accent-hover: #FFC000;
  --color-accent-light: #332d00;
}

body.high-contrast .site-header {
  background: #000;
  border-bottom-color: #555;
}

body.high-contrast .card,
body.high-contrast .testimonial-card,
body.high-contrast .faculty-card,
body.high-contrast .program-sidebar-card,
body.high-contrast .contact-info-card {
  background: #1a1a1a;
  border-color: #555;
}

body.high-contrast .form-input,
body.high-contrast .form-select,
body.high-contrast .form-textarea,
body.high-contrast .agent-input {
  background: #1a1a1a;
  color: #fff;
  border-color: #555;
}

body.high-contrast .a11y-panel,
body.high-contrast .a11y-toggle {
  background: #1a1a1a;
  border-color: #555;
}

body.high-contrast .modal {
  background: #1a1a1a;
}

body.high-contrast .agent-speech {
  background: #0a0a0a;
}

body.high-contrast .agent-speech-body {
  color: #fff;
}

body.high-contrast .agent-history {
  background: #0a0a0a;
}

body.high-contrast .agent-history-msg.bot .agent-bubble {
  background: #2a2a2a;
  color: #fff;
}

body.high-contrast .info-item {
  background: #1a1a1a;
}

body.high-contrast .site-footer {
  background: #000;
}