*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scrollbar-gutter: stable;
}

body {
  min-height: 100dvh;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-main);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

img,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.25;
  font-weight: 700;
  overflow-wrap: break-word;
}

h1 {
  font-size: clamp(1.375rem, 1rem + 1.5vw, 1.75rem);
}

h2 {
  font-size: clamp(1.125rem, 0.95rem + 0.75vw, 1.375rem);
}

h3 {
  font-size: 1.125rem;
}

p {
  overflow-wrap: break-word;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

a:active {
  color: var(--accent-active);
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

::selection {
  background: var(--accent-soft);
  color: var(--text-main);
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
}

code,
pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

pre {
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  overflow-x: auto;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

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