:root {
  font-family: system-ui, sans-serif;
  background: var(--tg-theme-bg-color, Canvas);
  color: var(--tg-theme-text-color, CanvasText);
}

body { margin: 0; }
main { max-width: 640px; margin: auto; padding: 24px 20px 40px; }
h1 { font-size: clamp(1.85rem, 6vw, 2.6rem); margin: 0 0 12px; }
h2 { font-size: 1.1rem; margin-top: 32px; }
p { line-height: 1.55; }
a { color: var(--tg-theme-link-color, LinkText); }
.back { display: inline-block; margin-bottom: 20px; }
ul { list-style: none; padding: 0; display: grid; gap: 10px; }
li a { display: block; padding: 16px; border: 1px solid var(--tg-theme-hint-color, GrayText); border-radius: 14px; background: var(--tg-theme-bg-color, Canvas); font-weight: 600; text-decoration: none; }
li a:hover { text-decoration: underline; }
#tools {
  margin: 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px 8px;
}

#tools li a {
  display: grid;
  justify-items: center;
  gap: 10px;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: center;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.tool-icon {
  display: grid;
  place-items: center;
  width: min(100%, 82px);
  aspect-ratio: 1;
  border-radius: 30%;
  background: var(--tg-theme-secondary-bg-color, color-mix(in srgb, CanvasText 7%, Canvas));
  font-size: 1.65rem;
}

.tool-icon img { width: 68%; height: auto; }