* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: Arial, Helvetica, sans-serif;
}

body {
  margin: 0;
  padding: 2rem 1rem 4rem;
  font-family: inherit;
  background: #f4f7fb;
  color: #0f172a;
  line-height: 1.5;
}

a {
  text-decoration: none;
}

.demo-layout {
  display: grid;
  gap: 1rem;
}

.demo-header,
.demo-section {
  width: min(74rem, calc(100% - 2rem));
  margin: 0 auto;
}

.demo-header h1 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.2;
}

.demo-header p {
  padding: 1.5rem 0 0.8rem 0;
  color: #66696e;
  max-width: 50%;
  display: flex;
  column-gap: 0.3rem;
}

.demo-header p::before {
  content: 'i';
  width: 1.1rem;
  height: 1.1rem;
  border: 1px solid #66696e;
  border-radius: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.demo-section {
  background: #ffffff;
  border: 0.0625rem solid #dbe3ef;
  border-radius: 1rem;
  padding: 1.25rem;
  box-shadow: 0 0.25rem 1rem rgba(15, 23, 42, 0.07);
}

.demo-section h2 {
  margin: 0 0 0.75rem;
  font-size: 1.4rem;
}

.demo-section h3 {
  margin: 1rem 0 0.5rem;
  font-size: 1rem;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.5rem 0;
}

.controls button {
  border: 0.0625rem solid #94a3b8;
  border-radius: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: #ffffff;
  color: #0f172a;
  font: 600 0.92rem/1.1 Arial, Helvetica, sans-serif;
  cursor: pointer;
}

.controls button:hover {
  background: #f1f5f9;
}

.controls button:focus-visible {
  outline: 0.1875rem solid #1d4ed8;
  outline-offset: 0.125rem;
}

.hint {
  margin-top: 0.75rem;
  background: #ecfdf5;
  border: 0.0625rem solid #86efac;
  border-radius: 0.75rem;
  padding: 0.75rem;
  color: #14532d;
  font-size: 0.92rem;
}

.hint p {
  margin: 0;
  display: grid;
  gap: 0.35rem;
}

.hint-text p {
  text-align: center;
  font-family: inherit;
}

.forexample {
  border: 0.0625rem solid #cbd5e1;
  background: #f8fafc;
  border-radius: 0.75rem;
  padding: 0.75rem;
  margin: 0.75rem 0;
}

.forexample-demo+.forexample-demo {
  margin-top: 0.6rem;
}

.motion-demo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.motion-demo__dot {
  width: 0.875rem;
  height: 0.875rem;
  border-radius: 999rem;
  background: #2563eb;
  animation: pulse-dot 1.1s infinite ease-in-out;
}

@keyframes pulse-dot {

  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.5);
    opacity: 0.45;
  }
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 0.9rem;
  margin-top: 0.75rem;
}

.card {
  border: 0.0625rem solid #dbe3ef;
  border-radius: 0.75rem;
  padding: 0.75rem;
  background: #fff;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}

.card img,
.slider img {
  width: 100%;
  height: 10rem;
  object-fit: cover;
  border-radius: 0.625rem;
}

.slider {
  display: grid;
  grid-template-columns: repeat(3, minmax(9rem, 1fr));
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.demo-hide-flag {
  margin-top: 0.75rem;
  display: inline-block;
  border: 0.0625rem dashed #64748b;
  border-radius: 999rem;
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
  color: #334155;
}

.a11y-slot {
  margin-top: 0.75rem;
  border: 0.125rem dashed #94a3b8;
  border-radius: 0.75rem;
  padding: 0.75rem;
  min-height: 3.25rem;
  display: flex;
  align-items: center;
  position: relative;
  gap: 0.5rem;
  color: #475569;
  background: #f8fafc;
}

#state {
  margin: 0;
  background: #0f172a;
  color: #dbeafe;
  border-radius: 0.75rem;
  padding: 0.75rem;
  min-height: 7rem;
  font: 500 0.82rem/1.45 Consolas, 'Courier New', monospace;
  white-space: pre-wrap;
}

html.a11y-mode[data-a11y-contrast='high'] body {
  background: #000 !important;
  color: #fff !important;
}

html.a11y-mode[data-a11y-contrast='high'] .demo-section,
html.a11y-mode[data-a11y-contrast='high'] .card,
html.a11y-mode[data-a11y-contrast='high'] .hint,
html.a11y-mode[data-a11y-contrast='high'] .forexample,
html.a11y-mode[data-a11y-contrast='high'] #state {
  background: #101010 !important;
  color: #fff !important;
  border-color: #fff !important;
}

html.a11y-mode[data-a11y-contrast='high'] a {
  color: #ff0 !important;
}

html.a11y-mode[data-a11y-color-scheme='light'] body {
  background: #f9fbff;
  color: #0f172a;
}

html.a11y-mode[data-a11y-color-scheme='dark'] body {
  background: #0b1220;
  color: #f1f5f9;
}

html.a11y-mode[data-a11y-color-scheme='dark'] .demo-section,
html.a11y-mode[data-a11y-color-scheme='dark'] .card,
html.a11y-mode[data-a11y-color-scheme='dark'] .forexample,
html.a11y-mode[data-a11y-color-scheme='dark'] .hint {
  background: #111b30;
  color: #e2e8f0;
  border-color: #334155;
}

html.a11y-mode[data-a11y-color-scheme='sepia'] body {
  background: #f3ead8;
  color: #433422;
}

html.a11y-mode[data-a11y-color-scheme='sepia'] .demo-section,
html.a11y-mode[data-a11y-color-scheme='sepia'] .card,
html.a11y-mode[data-a11y-color-scheme='sepia'] .forexample,
html.a11y-mode[data-a11y-color-scheme='sepia'] .hint {
  background: #fbf3e2;
  color: #433422;
  border-color: #d6c2a2;
}

.demo-images-hide img {
  opacity: 0.3;
  filter: grayscale(1);
}

.a11y-toggle:has(img) {
  display: flex;
  align-items: center;
  column-gap: 0.5rem;
}

#a11y-slot .my-a11y-panel {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 0.5rem;
}

@media (max-width: 52rem) {
  body {
    padding: 1rem 0.5rem 2rem;
  }

  .demo-header p {
    max-width: 100%;
    padding-top: 2rem;
  }

  .demo-header,
  .demo-section {
    width: calc(100% - 1rem);
  }

  .demo-header h1 {
    font-size: 1.55rem;
    max-width: 65%;
  }

  .slider {
    grid-template-columns: 1fr;
  }
}