/* base.css — reset léger et éléments HTML nus. */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh;
  font-family: var(--font-sans); font-size: var(--fs-md); line-height: 1.5;
  color: var(--c-text); background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { margin: 0 0 var(--sp-3); font-weight: 600; line-height: 1.25; letter-spacing: -.01em; }
h1 { font-size: var(--fs-2xl); }  h2 { font-size: var(--fs-lg); }  h3 { font-size: var(--fs-md); }
p { margin: 0 0 var(--sp-3); }
a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--font-mono); font-size: .9em; color: var(--c-text); background: var(--c-surface-2); padding: .1em .4em; border-radius: 4px; }
small { font-size: var(--fs-sm); }
img, svg { max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--c-surface); padding: var(--sp-2) var(--sp-3); z-index: 100; }
.skip-link:focus { left: var(--sp-3); }