* { box-sizing: border-box; }
html, body { min-height: 100%; }
html { scroll-padding-top: var(--header-height, 74px); }
@media (prefers-reduced-motion: no-preference) {
  html:focus-within { scroll-behavior: smooth; }
}

:root {
  --background: 36 33% 98%;
  --foreground: 222.2 47.4% 11.2%;
  --card: 0 0% 100%;
  --primary: 191 90% 34%;
  --primary-foreground: 0 0% 100%;
  --secondary: 35 28% 94%;
  --muted-foreground: 220 10% 42%;
  --accent: 30 95% 90%;
  --accent-foreground: 25 55% 18%;
  --border: 34 18% 88%;
  --ring: 191 90% 40%;
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --doc-bg: hsl(var(--background));
  --doc-fg: hsl(var(--foreground));
  --doc-muted: hsl(var(--muted-foreground));
  --doc-border: hsl(var(--border));
  --shadow: 0 14px 32px rgba(2, 8, 23, 0.10);
}

body {
  margin: 0;
  padding-top: var(--header-height, 72px);
  background:
    radial-gradient(900px 520px at 82% 0%, hsl(191 90% 92%) 0%, transparent 56%),
    radial-gradient(780px 460px at 5% 8%, hsl(30 95% 92%) 0%, transparent 50%),
    var(--doc-bg);
  color: var(--doc-fg);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:hover { color: hsl(var(--primary)); }
a:focus-visible, button:focus-visible {
  outline: 2px solid hsl(var(--ring));
  outline-offset: 4px;
  border-radius: 8px;
}

.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 2000;
  padding: 10px 14px;
  border-radius: 12px;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  font-weight: 700;
  font-size: 14px;
}
.skip-link:focus { top: 16px; }

.site-header {
  --header-inline-pad: 24px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(252, 250, 247, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--doc-border);
  box-shadow: 0 8px 24px rgba(2, 8, 23, 0.05);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 10px var(--header-inline-pad);
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
}
.brand-link { display: flex; align-items: center; border-radius: 10px; }
.brand-logo { height: 30px; width: auto; max-width: min(46vw, 220px); }
.nav-links {
  display: flex;
  gap: 22px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.014em;
}
.nav-links a { padding: 6px 0; border-bottom: 2px solid transparent; }
.nav-links a:hover, .nav-links a[aria-current="page"] {
  border-bottom-color: hsl(var(--primary) / 0.45);
}
.nav-actions { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.01em;
  font-family: inherit;
}
.btn.primary {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  box-shadow: 0 10px 22px rgba(2, 132, 199, 0.18);
}
.btn.primary:hover { color: hsl(var(--primary-foreground)); transform: translateY(-1px); }
.btn.secondary {
  background: hsl(var(--card));
  color: hsl(var(--foreground));
  border-color: hsl(var(--border));
}

.chip {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 6px 12px;
  border-radius: 999px;
  background: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
  border: 1px solid hsl(30 40% 80%);
  font-weight: 700;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  margin: 20px 0 16px;
  font-size: clamp(32px, 5.4vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.035em;
  font-weight: 800;
}
h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.018em;
}
.muted { color: var(--doc-muted); }

.page-hero { padding: clamp(48px, 7vw, 80px) 0 8px; }
.answer {
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.55;
  max-width: 42em;
  margin: 0 0 28px;
  color: var(--doc-fg);
  font-weight: 500;
}

.article {
  display: grid;
  gap: 28px;
  padding: 12px 0 72px;
}
.block {
  border: 1px solid var(--doc-border);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
  padding: 28px 28px 24px;
}
.block p:last-child, .block ul:last-child { margin-bottom: 0; }
.block ul { margin: 0; padding-left: 1.15em; color: var(--doc-muted); }
.block li + li { margin-top: 8px; }
.example {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.55;
  background: hsl(var(--secondary));
  border-radius: 16px;
  padding: 16px 18px;
  color: var(--doc-fg);
}
.kurz { display: grid; gap: 8px; padding: 0; margin: 0; list-style: none; }
.kurz li {
  position: relative;
  padding-left: 22px;
  color: var(--doc-muted);
}
.kurz li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: hsl(var(--primary));
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 13px;
  color: var(--doc-muted);
  padding: 4px 0 8px;
}
.meta strong { color: var(--doc-fg); font-weight: 650; }
.crumbs {
  font-size: 13px;
  font-weight: 600;
  color: var(--doc-muted);
  margin-bottom: 10px;
}
.crumbs a { color: var(--doc-muted); }
.cta-row { margin-top: 8px; }

.faq-list { display: grid; gap: 10px; }
.faq-list details {
  border: 1px solid var(--doc-border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.88);
  padding: 4px 18px 8px;
}
.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  padding: 14px 0;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list details p { color: var(--doc-muted); margin: 0 0 14px; }

.footer {
  padding: 32px 0 48px;
  border-top: 1px solid var(--doc-border);
  background: rgba(252, 250, 247, 0.82);
  color: var(--doc-muted);
  font-size: 12px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: hsl(var(--foreground));
  font-weight: 600;
}
.footer-logo { height: 22px; width: auto; }
.footer-cols { display: grid; gap: 6px; }
.footer-cols a { color: var(--doc-muted); font-weight: 600; }
.footer-cols a[aria-current="page"] { color: hsl(var(--primary)); }

@media (min-width: 981px) {
  .site-header { --header-inline-pad: 32px; }
}
@media (max-width: 980px) {
  .nav-links { display: none; }
  .block { padding: 22px 18px 18px; }
}
@media (max-width: 480px) {
  .container, .footer-inner { padding: 0 16px; }
  .nav { padding: 12px 18px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}