@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@300;400;600&display=swap');

:root {
  --sgd-a11y-primary:    #1a4f8a;
  --sgd-a11y-primary-dk: #0e3260;
  --sgd-a11y-white:      #ffffff;
  --sgd-a11y-bg:         #f8f9fb;
  --sgd-a11y-border:     #dde3ec;
  --sgd-a11y-text:       #1a1a2e;
  --sgd-a11y-on:         #2ecc71;
  --sgd-a11y-shadow:     0 4px 24px rgba(0,0,0,0.18);
  --sgd-a11y-radius:     12px;
  --sgd-a11y-width:      290px;
  --sgd-a11y-z:          999999;
}

#sgd-a11y-toolbar {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: var(--sgd-a11y-z);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.4;
}

#sgd-a11y-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--sgd-a11y-primary);
  color: var(--sgd-a11y-white);
  border: none;
  border-radius: 50px;
  padding: 10px 18px 10px 12px;
  cursor: pointer;
  box-shadow: var(--sgd-a11y-shadow);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: background 0.2s ease, transform 0.15s ease;
  outline-offset: 3px;
}

#sgd-a11y-toggle:hover,
#sgd-a11y-toggle:focus-visible {
  background: var(--sgd-a11y-primary-dk);
  transform: translateY(-2px);
}

#sgd-a11y-toggle svg { flex-shrink: 0; }

#sgd-a11y-panel {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 0;
  width: var(--sgd-a11y-width);
  background: var(--sgd-a11y-white);
  border-radius: var(--sgd-a11y-radius);
  box-shadow: var(--sgd-a11y-shadow);
  border: 1px solid var(--sgd-a11y-border);
  overflow: hidden;
  animation: sgdSlideUp 0.22s ease;
}

#sgd-a11y-panel[hidden] { display: none; }

@keyframes sgdSlideUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.sgd-a11y-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--sgd-a11y-primary);
  color: var(--sgd-a11y-white);
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.sgd-a11y-close {
  background: transparent;
  border: none;
  color: var(--sgd-a11y-white);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 0 2px;
  border-radius: 4px;
  transition: opacity 0.15s;
}

.sgd-a11y-close:hover,
.sgd-a11y-close:focus-visible {
  opacity: 0.75;
  outline: 2px solid var(--sgd-a11y-white);
}

.sgd-a11y-panel-body {
  padding: 8px 0;
  max-height: 420px;
  overflow-y: auto;
}

.sgd-a11y-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 16px;
  border-bottom: 1px solid var(--sgd-a11y-border);
}

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

.sgd-a11y-section-label {
  font-size: 13.5px;
  color: var(--sgd-a11y-text);
  font-weight: 500;
  flex: 1;
  padding-right: 10px;
}

.sgd-a11y-btn-group { display: flex; gap: 4px; }

.sgd-a11y-btn {
  background: var(--sgd-a11y-bg);
  border: 1px solid var(--sgd-a11y-border);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  color: var(--sgd-a11y-primary);
  transition: background 0.15s, border-color 0.15s;
  min-width: 34px;
}

.sgd-a11y-btn:hover,
.sgd-a11y-btn:focus-visible {
  background: var(--sgd-a11y-primary);
  color: var(--sgd-a11y-white);
  border-color: var(--sgd-a11y-primary);
  outline: 2px solid var(--sgd-a11y-primary-dk);
  outline-offset: 2px;
}

.sgd-a11y-toggle-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 2px;
  border-radius: 6px;
}

.sgd-a11y-toggle-btn:focus-visible {
  outline: 2px solid var(--sgd-a11y-primary);
  outline-offset: 3px;
}

.sgd-switch-track {
  display: inline-flex;
  align-items: center;
  width: 42px;
  height: 24px;
  background: #ccc;
  border-radius: 50px;
  position: relative;
  transition: background 0.2s ease;
  flex-shrink: 0;
}

.sgd-switch-thumb {
  position: absolute;
  left: 3px;
  width: 18px;
  height: 18px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 4px rgba(0,0,0,0.25);
  transition: left 0.2s ease;
}

.sgd-a11y-toggle-btn[aria-checked="true"] .sgd-switch-track { background: var(--sgd-a11y-on); }
.sgd-a11y-toggle-btn[aria-checked="true"] .sgd-switch-thumb { left: 21px; }

.sgd-switch-status {
  font-size: 12px;
  color: #888;
  font-weight: 500;
  min-width: 22px;
}

.sgd-a11y-toggle-btn[aria-checked="true"] .sgd-switch-status { color: var(--sgd-a11y-on); }

.sgd-a11y-reset-section { justify-content: center; padding: 12px 16px; }

.sgd-a11y-reset-all {
  background: transparent;
  border: 1.5px solid var(--sgd-a11y-primary);
  color: var(--sgd-a11y-primary);
  border-radius: 8px;
  padding: 7px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: background 0.15s, color 0.15s;
}

.sgd-a11y-reset-all:hover,
.sgd-a11y-reset-all:focus-visible {
  background: var(--sgd-a11y-primary);
  color: var(--sgd-a11y-white);
  outline: 2px solid var(--sgd-a11y-primary-dk);
  outline-offset: 2px;
}

#sgd-reading-guide-line {
  position: fixed;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(26, 79, 138, 0.45);
  pointer-events: none;
  z-index: calc(var(--sgd-a11y-z) - 1);
  border-radius: 2px;
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.06);
}

#sgd-reading-guide-line[hidden] { display: none; }

html.sgd-high-contrast,
html.sgd-high-contrast body { background: #000 !important; color: #fff !important; }
html.sgd-high-contrast a,
html.sgd-high-contrast button,
html.sgd-high-contrast input,
html.sgd-high-contrast textarea,
html.sgd-high-contrast select { color: #ffff00 !important; background: #000 !important; border-color: #ffff00 !important; }
html.sgd-high-contrast img { filter: contrast(1.2) brightness(0.9); }
html.sgd-high-contrast #sgd-a11y-toolbar { filter: none !important; }

html.sgd-dyslexia-font,
html.sgd-dyslexia-font body,
html.sgd-dyslexia-font p,
html.sgd-dyslexia-font h1,
html.sgd-dyslexia-font h2,
html.sgd-dyslexia-font h3,
html.sgd-dyslexia-font h4,
html.sgd-dyslexia-font h5,
html.sgd-dyslexia-font h6,
html.sgd-dyslexia-font li,
html.sgd-dyslexia-font td,
html.sgd-dyslexia-font span,
html.sgd-dyslexia-font a,
html.sgd-dyslexia-font label,
html.sgd-dyslexia-font input,
html.sgd-dyslexia-font textarea,
html.sgd-dyslexia-font button { font-family: 'Lexend', sans-serif !important; letter-spacing: 0.05em !important; word-spacing: 0.1em !important; line-height: 1.7 !important; }

html.sgd-highlight-links a { background: #ffff00 !important; color: #000 !important; text-decoration: underline !important; padding: 0 2px !important; border-radius: 2px !important; }

html.sgd-focus-highlight *:focus,
html.sgd-focus-highlight *:focus-visible { outline: 3px solid #e74c3c !important; outline-offset: 3px !important; box-shadow: 0 0 0 5px rgba(231,76,60,0.25) !important; }

html.sgd-reduce-motion *,
html.sgd-reduce-motion *::before,
html.sgd-reduce-motion *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }

html.sgd-grayscale { filter: grayscale(100%); }
html.sgd-grayscale #sgd-a11y-toolbar { filter: none !important; }

@media (max-width: 480px) {
  #sgd-a11y-toolbar { bottom: 16px; left: 12px; }
  #sgd-a11y-panel { width: calc(100vw - 24px); }
  .sgd-a11y-toggle-label { display: none; }
  #sgd-a11y-toggle { padding: 10px 12px; border-radius: 50%; }
}