@import url('https://fonts.googleapis.com/css2?family=Special+Elite&family=Work+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Space+Mono:wght@400;700&display=swap');

:root {
  --beton: #24231f;
  --beton-soft: #55503f;
  --aktenpapier: #ede7d8;
  --aktenpapier-deep: #ddd4b9;
  --kontrollrot: #9c2b26;
  --signalgruen: #33612f;
  --betongrau: #8c8879;
  --white: #ffffff;
  --font-display: "Special Elite", "Courier New", monospace;
  --font-body: "Work Sans", "Segoe UI", sans-serif;
  --font-data: "Space Mono", ui-monospace, monospace;
  --content-max: 76rem;
  --reading-max: 42rem;
  --step-0: clamp(.82rem, .78rem + .2vw, .92rem);
  --step-1: clamp(1.02rem, .97rem + .2vw, 1.13rem);
  --step-2: clamp(1.3rem, 1.1rem + .8vw, 1.85rem);
  --step-3: clamp(1.7rem, 1.3rem + 1.7vw, 2.6rem);
  --step-4: clamp(2.1rem, 1.5rem + 2.6vw, 3.6rem);
  --space-xs: clamp(.55rem, .48rem + .35vw, .85rem);
  --space-s: clamp(1rem, .8rem + .9vw, 1.6rem);
  --space-m: clamp(1.7rem, 1.25rem + 2vw, 2.9rem);
  --space-l: clamp(2.8rem, 2rem + 3.6vw, 5.2rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--beton);
  background: var(--aktenpapier);
  font-family: var(--font-body);
  font-size: var(--step-1);
  line-height: 1.6;
}
img { display: block; max-width: 100%; }
a { color: var(--kontrollrot); }
a:hover { color: var(--beton); }
:focus-visible { outline: .18rem solid var(--kontrollrot); outline-offset: .18rem; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 400; line-height: 1.12; color: var(--beton); text-wrap: balance; }
h1 { margin: 0; font-size: var(--step-4); letter-spacing: -.005em; }
h2 { margin: 0 0 .9rem; font-size: var(--step-3); }
h3 { margin: 0 0 .55rem; font-size: var(--step-2); }
p { max-width: 66ch; }
.skip-link { position: absolute; left: -9999px; top: 0; z-index: 300; padding: .8rem 1.1rem; background: var(--kontrollrot); color: var(--white); }
.skip-link:focus { left: 1rem; top: 1rem; }
.rahmen { width: min(calc(100% - 2rem), var(--content-max)); margin-inline: auto; }
.stempel { display: inline-flex; align-items: center; gap: .4rem; margin-bottom: .8rem; padding: .25rem .55rem; border: 1.5px solid currentColor; font-family: var(--font-data); font-size: .68rem; letter-spacing: .07em; text-transform: uppercase; color: var(--kontrollrot); }

/* header: official-document control bar, red top rule, monospace file-reference brand */
.kontrolle { position: sticky; top: 0; z-index: 100; background: var(--beton); border-top: .3rem solid var(--kontrollrot); box-shadow: 0 .2rem .6rem rgba(0,0,0,.18); }
.kontrolle-leiste { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .6rem 1.3rem; min-height: 4.2rem; padding-block: .6rem; }
.aktenzeichen { display: inline-flex; flex-direction: column; text-decoration: none; color: var(--white); font-family: var(--font-display); font-size: 1.15rem; line-height: 1.1; }
.aktenzeichen span { font-family: var(--font-data); font-size: .6rem; letter-spacing: .08em; color: rgba(237,231,216,.62); text-transform: uppercase; margin-top: .25rem; }
.durchgang { display: flex; flex-wrap: wrap; align-items: center; gap: 0; }
.durchgang a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: .5rem .8rem;
  border-left: 1px solid rgba(237,231,216,.18);
  color: rgba(237,231,216,.8);
  font-family: var(--font-data);
  font-size: .74rem;
  letter-spacing: .02em;
  text-decoration: none;
  text-transform: uppercase;
}
.durchgang a:last-child { border-right: 0; }
.durchgang a:hover { color: var(--white); }
.durchgang a[aria-current="page"] { color: var(--white); background: rgba(156,43,38,.35); }

/* hero: "die Grenzstreifen-Akte" — full-bleed photo, torn-paper dossier panel overlaid low-left, corner file tab, no eyebrow+H1+3-card default */
.grenzstreifen { position: relative; min-height: 32rem; display: flex; align-items: flex-end; background: var(--beton); overflow: hidden; }
.grenzstreifen-bild { position: absolute; inset: 0; }
.grenzstreifen-bild img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.86) contrast(1.05); }
.grenzstreifen-bild::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(20,19,16,.94) 0%, rgba(20,19,16,.6) 40%, rgba(20,19,16,.14) 72%); }
.grenzstreifen-akte {
  position: relative;
  z-index: 2;
  margin: 0 0 var(--space-m) 0;
  padding: var(--space-s) var(--space-s) var(--space-s) calc(var(--space-s) + .3rem);
  max-width: 42rem;
  background: var(--aktenpapier);
  border-left: .4rem solid var(--kontrollrot);
  box-shadow: .5rem .5rem 0 rgba(0,0,0,.28);
}
.grenzstreifen-akte h1 { font-size: clamp(1.7rem, 1.3rem + 2.2vw, 2.7rem); }
.grenzstreifen-akte .einleitung { font-size: clamp(1rem, .95rem + .3vw, 1.12rem); color: var(--beton-soft); }
.grenzstreifen-fakten { display: flex; flex-wrap: wrap; gap: 0; margin: var(--space-s) 0 0; padding-top: .6rem; border-top: 1px solid var(--aktenpapier-deep); list-style: none; }
.grenzstreifen-fakten li { flex: 1 1 auto; padding-right: 1.1rem; margin-right: 1.1rem; border-right: 1px solid var(--aktenpapier-deep); font-family: var(--font-data); font-size: .72rem; color: var(--beton-soft); }
.grenzstreifen-fakten li:last-child { border-right: 0; margin-right: 0; }
.grenzstreifen-fakten strong { display: block; font-family: var(--font-display); font-size: 1.15rem; color: var(--beton); }
.grenzstreifen-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: var(--space-s); }

.aktion { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: .65rem 1.3rem; font-family: var(--font-data); font-weight: 700; font-size: .82rem; letter-spacing: .03em; text-transform: uppercase; text-decoration: none; border: 1.5px solid var(--beton); }
.aktion-primaer { background: var(--kontrollrot); border-color: var(--kontrollrot); color: var(--white); }
.aktion-primaer:hover { background: var(--beton); border-color: var(--beton); color: var(--white); }
.aktion-outline { background: transparent; color: var(--beton); }
.aktion-outline:hover { background: var(--beton); color: var(--white); }

/* photo fields with placeholder support */
.bildfeld { position: relative; overflow: hidden; background: var(--aktenpapier-deep); min-height: 11rem; }
.bildfeld img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bildfeld:not(:has(img)) { display: flex; align-items: center; justify-content: center; border: 1.5px dashed var(--betongrau); }
.bildfeld:not(:has(img))::after { content: attr(data-label); padding: .8rem 1rem; max-width: 85%; text-align: center; font-family: var(--font-data); font-size: .64rem; line-height: 1.5; color: var(--betongrau); }
.bildfeld--breit { aspect-ratio: 16/10; }
.bildfeld--hoch { aspect-ratio: 4/5; }
.bildfeld figcaption { position: absolute; inset: auto 0 0; margin: 0; padding: .5rem .7rem; background: linear-gradient(0deg, rgba(20,19,16,.85), transparent); color: var(--white); font-family: var(--font-data); font-size: .64rem; line-height: 1.4; }

/* case section: a sticky file-tab heading pinned to the margin beside its own content, not a full-width heading stacked above full-width content */
.beweislage { padding-block: var(--space-l); }
.beweislage--papier { background: var(--white); }
.beweislage-kopf { display: grid; gap: .6rem; margin-bottom: var(--space-m); max-width: var(--reading-max); padding-left: .9rem; border-left: .25rem solid var(--kontrollrot); }
.beweislage-kopf p { margin: 0; color: var(--beton-soft); }

/* dossier cards: the recurring content unit, folded-corner look */
.dossier-raster { display: grid; gap: var(--space-s); }
.dossier {
  position: relative;
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-s);
  background: var(--white);
  border: 1px solid var(--aktenpapier-deep);
  border-top: .3rem solid var(--kontrollrot);
  text-decoration: none;
  color: inherit;
  clip-path: polygon(0 0, calc(100% - 1.3rem) 0, 100% 1.3rem, 100% 100%, 0 100%);
  transition: box-shadow .18s ease, transform .18s ease;
}
.dossier:hover { box-shadow: .4rem .4rem 0 rgba(36,35,31,.16); transform: translate(-.1rem, -.1rem); }
.dossier-kennzahl { font-family: var(--font-data); font-size: .68rem; text-transform: uppercase; letter-spacing: .04em; color: var(--kontrollrot); }
.dossier h3 { margin: .1rem 0 0; }
.dossier .dossier-fakten-mini { display: flex; flex-wrap: wrap; gap: .35rem 1rem; margin: .4rem 0 0; padding: 0; list-style: none; font-family: var(--font-data); font-size: .68rem; color: var(--beton-soft); }

/* generic cards */
.karten-raster { display: grid; gap: var(--space-s); }
.karte { padding: var(--space-s); background: var(--white); border-left: .3rem solid var(--signalgruen); }
.karte h3 { margin-bottom: .45rem; }

/* fact strip */
.fakten-leiste { display: grid; gap: 1px; margin: var(--space-s) 0; background: var(--aktenpapier-deep); }
.fakten-leiste div { padding: 1rem 1.2rem; background: var(--white); }
.fakten-leiste dt { font-family: var(--font-data); font-size: .66rem; text-transform: uppercase; letter-spacing: .04em; color: var(--beton-soft); }
.fakten-leiste dd { margin: .3rem 0 0; font-family: var(--font-display); font-size: 1rem; }

/* callout */
.hinweis { display: grid; gap: .6rem; margin: var(--space-s) 0; padding: var(--space-s); background: var(--aktenpapier-deep); border-left: .3rem solid var(--signalgruen); }
.hinweis h3 { margin: 0; font-size: 1.05rem; }
.hinweis p { margin: 0; max-width: none; }

/* signature tool: der Zeitstrahl — an era-toggle timeline. Real dates, real sites, switches each site card between "1961-89" and "Today" framing without navigation */
.zeitstrahl { padding: var(--space-s); background: var(--beton); color: var(--aktenpapier); }
.zeitstrahl h2, .zeitstrahl h3 { color: var(--white); }
.zeitstrahl-lede { color: rgba(237,231,216,.78); max-width: var(--reading-max); }
.zeitstrahl-schalter { display: inline-flex; margin: var(--space-s) 0 0; border: 1.5px solid rgba(237,231,216,.4); }
.zeitstrahl-schalter button {
  min-height: 44px;
  padding: .6rem 1.1rem;
  background: transparent;
  border: 0;
  color: rgba(237,231,216,.75);
  font-family: var(--font-data);
  font-size: .8rem;
  letter-spacing: .03em;
  text-transform: uppercase;
  cursor: pointer;
}
.zeitstrahl-schalter button + button { border-left: 1.5px solid rgba(237,231,216,.4); }
.zeitstrahl-schalter button[aria-pressed="true"] { background: var(--kontrollrot); color: var(--white); }
.zeitstrahl-raster { display: grid; gap: 1px; margin-top: var(--space-s); background: rgba(237,231,216,.16); }
.zeitstrahl-karte { padding: var(--space-s); background: rgba(237,231,216,.05); }
.zeitstrahl-karte h4 { margin: 0 0 .3rem; font-family: var(--font-display); font-size: 1.05rem; color: var(--white); }
.zeitstrahl-jahr { font-family: var(--font-data); font-size: .7rem; color: var(--signalgruen); text-transform: uppercase; }
[data-era-text] { display: none; margin: 0; font-size: .9rem; color: rgba(237,231,216,.82); max-width: none; }
[data-era-text].ist-aktiv { display: block; }

/* practical/checklist index */
.praxis-liste { display: grid; gap: 0; margin: var(--space-s) 0 0; padding: 0; list-style: none; border-top: 1px solid var(--aktenpapier-deep); }
.praxis-liste li { display: grid; grid-template-columns: 2.4rem 1fr; gap: 1rem; padding: var(--space-s) 0; border-bottom: 1px solid var(--aktenpapier-deep); }
.praxis-liste .praxis-nr { font-family: var(--font-display); font-size: 1.05rem; color: var(--kontrollrot); }
.praxis-liste h3 { margin: 0 0 .3rem; font-size: 1.15rem; }
.praxis-liste p { margin: 0 0 .4rem; }

/* site detail page template */
.akte-kopf { padding-block: var(--space-l) var(--space-m); background: var(--white); }
.akte-kopf-raster { display: grid; gap: var(--space-m); }
.akte-kopf .stempel { color: var(--signalgruen); }
.akte-fakten { display: grid; gap: 0; padding: 0; list-style: none; align-self: start; border: 1px solid var(--aktenpapier-deep); }
.akte-fakten li { display: grid; gap: .15rem; padding: .75rem 1rem; border-bottom: 1px solid var(--aktenpapier-deep); }
.akte-fakten li:last-child { border-bottom: 0; }
.akte-fakten dt { font-family: var(--font-data); font-size: .64rem; text-transform: uppercase; letter-spacing: .04em; color: var(--beton-soft); }
.akte-fakten dd { margin: 0; font-family: var(--font-display); font-size: .98rem; }
.akte-inhalt { display: grid; gap: var(--space-l); padding-block: var(--space-m); }
.akte-beweislage { display: grid; gap: var(--space-s); }
.akte-beweislage > .beweislage-kopf { margin-bottom: 0; max-width: none; }
.akte-pager { display: flex; justify-content: space-between; gap: 1rem; padding: var(--space-s) 0; border-top: 1px solid var(--aktenpapier-deep); margin-top: var(--space-m); font-family: var(--font-data); font-size: .76rem; }
.akte-pager a { text-decoration: none; }

/* checklist */
.pruefliste { display: grid; gap: .55rem; margin: var(--space-s) 0; padding: 0; list-style: none; }
.pruefliste li { display: flex; gap: .7rem; align-items: flex-start; padding: .75rem .9rem; background: var(--white); border-left: .28rem solid var(--signalgruen); }

/* table */
.daten-tabelle { width: 100%; border-collapse: collapse; font-size: .9rem; }
.daten-tabelle th, .daten-tabelle td { padding: .6rem .8rem; border-bottom: 1px solid var(--aktenpapier-deep); text-align: left; vertical-align: top; }
.daten-tabelle th { font-family: var(--font-data); font-size: .68rem; text-transform: uppercase; letter-spacing: .03em; color: var(--beton-soft); }

/* legal */
.rechts-inhalt { display: grid; gap: var(--space-m); }
.rechts-inhalt h2 { font-size: var(--step-2); margin-top: var(--space-m); }
.rechts-inhalt h2:first-child { margin-top: 0; }
.rechts-zurueck { display: inline-block; margin-top: var(--space-m); }

/* footer: dark "filing cabinet" — deliberately different from site 7's light 3-col footer */
.aktenschrank { background: var(--beton); color: rgba(237,231,216,.72); padding-block: var(--space-l); }
.aktenschrank-raster { display: grid; gap: var(--space-m); }
.aktenschrank-marke { display: inline-flex; flex-direction: column; color: var(--white); font-family: var(--font-display); font-size: 1.1rem; text-decoration: none; }
.aktenschrank nav { display: flex; flex-wrap: wrap; gap: .4rem 1.1rem; margin-top: var(--space-s); padding: 0; list-style: none; font-family: var(--font-data); font-size: .76rem; }
.aktenschrank nav a { text-decoration: none; color: rgba(237,231,216,.68); }
.aktenschrank nav a:hover { color: var(--white); }
.aktenschrank small { display: block; margin-top: var(--space-s); max-width: 62ch; font-size: .74rem; color: rgba(237,231,216,.55); }
.fakten-box { padding: var(--space-s); background: rgba(237,231,216,.06); border: 1px solid rgba(237,231,216,.16); }
.fakten-box h4 { margin: 0 0 .6rem; font-family: var(--font-data); font-size: .68rem; text-transform: uppercase; letter-spacing: .04em; color: rgba(237,231,216,.6); }
.fakten-box dl { margin: 0; display: grid; gap: .5rem; }
.fakten-box dt { font-family: var(--font-data); font-size: .76rem; color: rgba(237,231,216,.6); }
.fakten-box dd { margin: .1rem 0 0; font-family: var(--font-display); font-size: .92rem; color: var(--white); }

@media (min-width: 40rem) {
  .dossier-raster { grid-template-columns: repeat(2, 1fr); }
  .karten-raster { grid-template-columns: repeat(2, 1fr); }
  .fakten-leiste { grid-template-columns: repeat(3, 1fr); }
  .zeitstrahl-raster { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 60rem) {
  .grenzstreifen-akte { max-width: 46rem; }
  .akte-kopf-raster { grid-template-columns: 1fr 17rem; }
  .dossier-raster { grid-template-columns: repeat(3, 1fr); }
  .zeitstrahl-raster { grid-template-columns: repeat(3, 1fr); }
  .aktenschrank-raster { grid-template-columns: 1.1fr .9fr .9fr; }
  .durchgang a { font-size: .7rem; }
  .beweislage > .rahmen { display: grid; grid-template-columns: 15rem 1fr; align-items: start; gap: var(--space-l); }
  .beweislage-kopf { position: sticky; top: 5.5rem; margin-bottom: 0; max-width: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}