:root {
  --gdg2-bg: #f5f5f2;
  --gdg2-surface: #ffffff;
  --gdg2-ink: #161a22;
  --gdg2-muted: #626771;
  --gdg2-line: rgba(17, 18, 15, 0.14);
  --gdg2-accent: #5874e8;
  --gdg2-accent-soft: #e8edff;
  --gdg2-accent-ink: #ffffff;
  --gdg2-dark: #171d2a;
  --gdg2-radius-sm: 0.75rem;
  --gdg2-radius-lg: clamp(1.25rem, 3vw, 2.75rem);
  --gdg2-content: 72rem;
  --gdg2-reading: 46rem;
  --gdg2-gutter: clamp(1rem, 4vw, 4.5rem);
  --gdg2-shadow: 0 1.25rem 4rem rgba(19, 20, 16, 0.1);
}

.gdg2-front,
.gdg2-content {
  overflow-x: clip;
  background: var(--gdg2-bg);
  color: var(--gdg2-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
  text-rendering: optimizeLegibility;
}

.gdg2-front *,
.gdg2-front *::before,
.gdg2-front *::after,
.gdg2-content *,
.gdg2-content *::before,
.gdg2-content *::after {
  box-sizing: border-box;
}

.gdg2-front img,
.gdg2-content img {
  display: block;
  max-width: 100%;
  height: auto;
}

.gdg2-front a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.gdg2-front :focus-visible,
.gdg2-content :focus-visible {
  outline: 3px solid #1675ff;
  outline-offset: 4px;
}

.gdg2-front h1,
.gdg2-front h2,
.gdg2-front h3,
.gdg2-front p {
  margin-top: 0;
}

.gdg2-front h1,
.gdg2-front h2,
.gdg2-front h3 {
  color: var(--gdg2-ink);
  font-weight: 760;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.gdg2-front p {
  line-height: 1.8;
}

@media (prefers-reduced-motion: reduce) {
  .gdg2-front *,
  .gdg2-front *::before,
  .gdg2-front *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .gdg2-js .gdg2-reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}