/* Shared base for every variant: reset and accessibility only.
   No colours, fonts or layout here — each variant owns its look. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { margin: 0; min-height: 100vh; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
html, body { overflow-x: clip; }
h1, h2, h3, h4, p, figure, blockquote, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
svg { display: block; }
canvas { display: block; }

:focus { outline: none; }
:focus-visible { outline: 2px solid currentColor; outline-offset: 4px; border-radius: 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: fixed; left: 16px; top: -60px; z-index: 1000; padding: 10px 16px;
  background: #000; color: #fff; transition: top .2s;
}
.skip-link:focus-visible { top: 16px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important; animation-iteration-count: 1 !important;
    transition-duration: .01ms !important; scroll-behavior: auto !important;
  }
}