* { box-sizing: border-box; }
html { scroll-padding-top: 1rem; }
body { margin: 0; font: 1rem/1.6 system-ui, sans-serif; overflow-wrap: break-word; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: .25em; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid currentColor; outline-offset: 5px; }
button, input, textarea, select { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.1; text-wrap: balance; }
p { max-width: 66ch; }
nav { display: flex; flex-wrap: wrap; gap: 1.25rem; }
nav a { display: inline-flex; min-height: 44px; align-items: center; }
.skip { position: absolute; left: 1rem; top: -100px; padding: .75rem; background: white; color: black; z-index: 10; }
.skip:focus { top: 1rem; }
.concept-note { padding: .6rem clamp(1rem, 4vw, 4rem); font-size: .875rem; background: #e9e7e2; color: #292d2b; border-bottom: 1px solid #a4aaa4; }
/* Kopfleiste – Standard 1.34 (kiLeiste in src/core/document.mjs): mittig, am PC eine Zeile, am Handy zwei.
   Größe, Abstände und Ausrichtung gelten hier für alle Seiten (aside.ki-leiste schlägt die .concept-note-Regeln der Seiten);
   Hintergrund, Textfarbe, Linie und Schrift setzt jede Seite selbst über .concept-note. */
aside.ki-leiste { display: flex; flex-wrap: wrap; justify-content: center; align-items: baseline; column-gap: 1.25em; row-gap: .15em; padding: .55rem 1rem; font-size: 13px; line-height: 1.5; text-align: center; }
.ki-leiste p { margin: 0; max-width: none; }
.ki-leiste__label { font-weight: 600; letter-spacing: .1em; text-transform: uppercase; margin-right: .55em; }
.ki-leiste__label a { text-decoration: none; }
.ki-leiste__label a:hover { text-decoration: underline; }
.ki-leiste__label, .ki-leiste__satz, .ki-leiste__links a { white-space: nowrap; }
.ki-leiste__links a { text-underline-offset: .2em; }
.ki-leiste__trenner { margin: 0 .6em; opacity: .6; }
@media (max-width: 760px) {
  aside.ki-leiste { padding: .5rem .75rem; font-size: 12px; row-gap: .1em; }
  .ki-leiste__label { font-size: 11px; letter-spacing: .05em; margin-right: .45em; }
  .ki-leiste__zweck { display: none; }
}
.project-footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; padding: 2rem clamp(1rem, 4vw, 4rem); font-size: .875rem; border-top: 1px solid currentColor; }
.project-footer a { min-height: 44px; display: inline-flex; align-items: center; }
.project-footer .site-version { align-self: center; font-size: max(.75em, 10px); letter-spacing: .08em; opacity: .75; white-space: nowrap; }
details { padding: 1rem 0; border-top: 1px solid currentColor; }
summary { cursor: pointer; min-height: 44px; padding: .5rem 0; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}

/* Weiche Seitenübergänge zwischen Startseite und Unterseiten (ohne JavaScript; Browser ohne Unterstützung wechseln normal). */
@view-transition { navigation: auto; }
@media (prefers-reduced-motion: reduce) { @view-transition { navigation: none; } }