/* base.css — 리셋·서체·링크·포커스 */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
h1, h2, h3, h4 { margin: 0; line-height: var(--leading-tight); font-weight: 700; }
h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-lg); }
h3 { font-size: var(--text-md); }
p { margin: 0; }
a { color: var(--color-primary-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { display: block; max-width: 100%; }
button, input, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; border-radius: var(--r-sm); }
code, .mono { font-family: var(--font-mono); font-size: var(--text-sm); }
.num { font-variant-numeric: tabular-nums; }
.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; }
.muted { color: var(--color-text-3); }
.text-sm { font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.nowrap { white-space: nowrap; }
:root { color-scheme: light dark; }
html { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
.skip-link { position: absolute; left: var(--space-3); top: -60px; z-index: 100; padding: var(--space-2) var(--space-3); border-radius: var(--r); background: var(--color-primary); color: #fff; }
.skip-link:focus { top: var(--space-2); }
h1, h2 { text-wrap: balance; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition-duration: 0s !important; animation-duration: 0s !important; } }