* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: #0f172a;
  background: #f8fafc;
}

a { color: #2563eb; text-decoration: none; }
a:hover { text-decoration: underline; }

.hero {
  background: radial-gradient(circle at top left, #e0f2fe, #f8fafc 60%);
  border-bottom: 1px solid #e2e8f0;
}
.hero-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: #111827;
}
.logo img { width: 40px; height: 40px; border-radius: 10px; }
.hero-nav { display: flex; gap: 16px; font-size: 14px; }
.hero-nav a { color: #0f172a; padding: 6px 8px; border-radius: 8px; }
.hero-nav a:hover, .hero-nav a:focus-visible { background: rgba(37,99,235,0.06); outline: none; }

/* Accessibility: skip link shown on keyboard focus */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
  width: auto;
  height: auto;
  padding: 8px 12px;
  background: #111827;
  color: #fff;
  border-radius: 6px;
  z-index: 1000;
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 24px 40px;
}

.intro h1 { font-size: 34px; margin: 0 0 12px; }
.intro p { font-size: 16px; line-height: 1.7; color: #334155; }

.grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.grid article {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
}
.impressum-section { margin: 18px 0; }
.impressum-section address { font-style: normal; color: #334155; line-height: 1.6; }
.impressum-section a { color: #2563eb; }
.grid h2 { margin: 0 0 8px; font-size: 18px; }
.grid p { margin: 0; color: #475569; line-height: 1.6; font-size: 14px; }

.details { margin-top: 32px; }
.details h2 { margin: 18px 0 8px; font-size: 20px; }
.details ul { padding-left: 18px; color: #475569; }
.details li { margin: 8px 0; }
.details p { color: #475569; line-height: 1.6; }

/* Footer nav accessibility */
.footer nav a { color: #64748b; padding: 4px 6px; }
.footer nav a:focus-visible { outline: 3px solid rgba(37,99,235,0.15); border-radius: 6px; }

.footer {
  max-width: 980px;
  margin: 0 auto;
  border-top: 1px solid #e2e8f0;
  padding: 18px 24px 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  justify-content: space-between;
  font-size: 13px;
  color: #64748b;
  background: #f8fafc;
}
.footer a { color: #64748b; text-decoration: none; }
.footer a:hover { color: #2563eb; text-decoration: underline; }
.footer strong { color: #334155; }

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .hero-inner { flex-direction: column; align-items: flex-start; }
  .hero-nav { width: 100%; justify-content: flex-start; flex-wrap: wrap; }
  .intro h1 { font-size: 26px; }
  .wrap { padding: 24px 16px 32px; }
  .footer { flex-direction: column; align-items: flex-start; }
}