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

html { font-size: 16px; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--text-base);
  line-height: var(--line-height-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  letter-spacing: -0.01em;
}
h1 { font-size: var(--text-xl); }
h2 { font-size: var(--text-lg); }
h3 { font-size: var(--text-md); }
h4 { font-size: var(--text-base); }

p { margin: 0; }

a {
  color: var(--color-brand);
  text-decoration: none;
  transition: color var(--transition-base);
}
a:hover { color: var(--color-brand-hover); text-decoration: underline; }

code, pre, kbd, samp {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

code {
  background: var(--color-surface-raised);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

pre {
  background: var(--color-surface-raised);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  overflow-x: auto;
  border: 1px solid var(--color-border);
}
pre code { background: transparent; padding: 0; }

button { font-family: inherit; cursor: pointer; }

input, select, textarea { font-family: inherit; font-size: inherit; }

:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.tabular { font-variant-numeric: tabular-nums; font-family: var(--font-mono); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }