/* Grundlagen. Nutzt ausschließlich Tokens aus tokens.css. */

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--ink-700);
  background: var(--surface-1);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--ink-900);
  line-height: var(--leading-tight);
  font-weight: var(--weight-semibold);
}
h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-xl); }
h3 { font-size: var(--text-lg); }
h4 { font-size: var(--text-md); }

p { margin: 0 0 var(--space-3); }
a { color: var(--brand-500); text-decoration: none; }
a:hover { text-decoration: underline; }

img, video, canvas { max-width: 100%; display: block; }

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

:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--radius-sm);
}

[hidden] { display: none !important; }

.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(--ink-500); }
.small { font-size: var(--text-sm); }
.mono  { font-family: var(--font-mono); }
.row   { display: flex; align-items: center; gap: var(--space-2); }
.row--between { justify-content: space-between; }
.row--wrap { flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: var(--space-3); }
.grow  { flex: 1 1 auto; min-width: 0; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }