/* ─── LAYOUT ─────────────────────────────────────────────────────
   Seitengerüst: Header, Content-Wrapper, Abschnitte, Footer.
   ──────────────────────────────────────────────────────────────── */

/* ─── HEADER ─────────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
}

.header-inner {
  max-width: var(--max-w);
  height: 100%;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  width: 28px;
  height: 28px;
  flex: none;
  fill: none;
  stroke: var(--c-accent-hi);
  stroke-width: 14;
  stroke-linecap: round;
}

.brand-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-heading);
  letter-spacing: -.01em;
  white-space: nowrap;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.header-link {
  font-size: 13px;
  color: var(--c-muted);
  text-decoration: none;
  white-space: nowrap;
}

.header-link:hover { color: var(--c-text); }

@media (max-width: 640px) {
  .header-link { display: none; }
}

/* ─── CONTENT ────────────────────────────────────────────────── */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--header-h) 20px 72px;
}

.section { margin-bottom: 56px; }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--c-border);
}

.section-head .num {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--c-faint);
}

.section-head h2 {
  font-size: 19px;
}

.section-intro {
  font-size: 14px;
  color: var(--c-muted);
  margin-bottom: 18px;
  max-width: 68ch;
}

/* ─── FOOTER ─────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--c-border);
  padding: 28px 20px 40px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

/* Footer-Titel über den Links: Bildmarke als SVG, Schrift als echter
   HTML-Text. Text im SVG würde bei dieser Größe auf ~5px skalieren
   und dadurch matschig rendern. */
.footer-brand {
  display: flex;
  align-items: center;
  gap: 11px;
}

.footer-mark {
  display: block;
  flex: none;
  width: 44px;
  height: 44px;
}

.footer-brand-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--c-heading);
}

.footer-brand-text span {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-accent);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 20px;
}

.footer-links a {
  font-size: 13px;
  color: var(--c-muted);
  text-decoration: none;
}

.footer-links a:hover { color: var(--c-accent-hi); }

.footer-legal {
  font-size: 12px;
  color: var(--c-faint);
  line-height: 1.6;
  max-width: 78ch;
  margin: 2px auto 0;
  text-align: center;
}