/*
 * weichenantriebe.de – Design „Hebelbank“: Weichenhebel-Blau als große Fläche, Weiß, Signalgelb für den
 * gestellten Fahrweg. Schrift: Inter (SIL Open Font License, lokal eingebunden – kein Aufruf externer Server).
 */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/inter-latin-wght-normal.woff2") format("woff2");
}

:root {
  --blau: #1d4f9c;
  --blau-dunkel: #163d7a;
  --blau-tief: #0f2a55;
  --blau-zart: #eaf0f9;
  --gelb: #ffc21a;
  --ink: #131820;
  --text: #2c333d;
  --leise: #5c6673;
  --linie: #dde2e8;
  --grund: #f4f6f9;
  --weiss: #fff;

  --radius: 12px;
  --radius-klein: 8px;
  --schatten: 0 1px 2px rgba(19, 24, 32, 0.06), 0 8px 24px -12px rgba(19, 24, 32, 0.18);
  --stellzeit: 1.8s;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5.5rem; -webkit-text-size-adjust: 100%; }

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  background: var(--weiss);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
}

main { flex: 1 0 auto; }

h1, h2, h3 { margin: 0; color: var(--ink); line-height: 1.15; text-wrap: balance; }
h1 { font-size: clamp(2.3rem, 6.2vw, 4.25rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.02; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.15rem); font-weight: 750; letter-spacing: -0.025em; }
h3 { font-size: 1.125rem; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0 0 1rem; }
ul, ol { margin: 0 0 1rem; padding-left: 1.25rem; }
a { color: var(--blau); text-underline-offset: 3px; }
a:hover { color: var(--blau-tief); }
img, svg { max-width: 100%; }
address { font-style: normal; margin: 0 0 1rem; }

:focus-visible { outline: 3px solid var(--gelb); outline-offset: 2px; border-radius: 4px; }

.container { width: min(100% - 2.5rem, 1140px); margin-inline: auto; }
.container--narrow { max-width: 780px; }
.muted { color: var(--leise); }

.icon {
  flex: none;
  width: 1.1em;
  height: 1.1em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 100;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-klein);
  background: var(--ink);
  color: var(--weiss);
  font-weight: 700;
  text-decoration: none;
}
.skip-link:focus { top: 0.75rem; color: var(--weiss); }

/* Kopf */
.header { position: sticky; top: 0; z-index: 50; background: var(--weiss); border-bottom: 1px solid var(--linie); }
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4rem; }
.logo { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--ink); font-size: 1.15rem; font-weight: 750; letter-spacing: -0.02em; text-decoration: none; }
.logo:hover { color: var(--ink); }
.logo__zeichen { width: 30px; height: 30px; }
.logo__zeichen rect { fill: var(--blau); }
.logo__zeichen path { fill: none; stroke: var(--weiss); stroke-width: 2.8; stroke-linecap: round; }
.logo__tld { color: var(--leise); font-weight: 500; }

.nav { display: flex; gap: 0.25rem; }
.nav a {
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius-klein);
  color: var(--text);
  font-size: 0.9375rem;
  font-weight: 550;
  text-decoration: none;
}
.nav a:hover { background: var(--grund); color: var(--ink); }
.nav a[aria-current="page"] { background: var(--blau-zart); color: var(--blau-dunkel); }
.nav-toggle {
  display: none;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--linie);
  border-radius: var(--radius-klein);
  background: var(--weiss);
  color: var(--ink);
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
}

/* Knöpfe */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.3rem;
  border: 2px solid var(--ink);
  border-radius: var(--radius-klein);
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn:hover { background: var(--ink); color: var(--weiss); }
.btn--primary { border-color: var(--blau); background: var(--blau); color: var(--weiss); }
.btn--primary:hover { border-color: var(--blau-tief); background: var(--blau-tief); color: var(--weiss); }
.btn--hell { border-color: var(--weiss); background: var(--weiss); color: var(--blau-tief); }
.btn--hell:hover { border-color: var(--gelb); background: var(--gelb); color: var(--ink); }
.btn--umriss { border-color: rgba(255, 255, 255, 0.7); color: var(--weiss); }
.btn--umriss:hover { border-color: var(--weiss); background: rgba(255, 255, 255, 0.14); color: var(--weiss); }

.eyebrow { margin-bottom: 1rem; font-size: 0.8125rem; font-weight: 650; letter-spacing: 0.09em; text-transform: uppercase; }
.lead { max-width: 40rem; font-size: clamp(1.1rem, 1.8vw, 1.25rem); line-height: 1.6; }

/* Bühne der Startseite */
.hero { padding-block: clamp(3rem, 7vw, 5.5rem); background: var(--blau); color: rgba(255, 255, 255, 0.92); }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.hero h1 { color: var(--weiss); }
.hero .eyebrow { color: var(--gelb); }
.hero .lead { margin-top: 1.5rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }

/* Umschaltbare Weiche */
.demo { margin: 0; border: 1px solid rgba(255, 255, 255, 0.22); border-radius: var(--radius); background: var(--blau-dunkel); overflow: hidden; }
.demo svg { display: block; width: 100%; height: auto; }
.demo__leiste { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.75rem 1rem; border-top: 1px solid rgba(255, 255, 255, 0.18); font-size: 0.875rem; }
.demo__schalter { display: inline-flex; padding: 3px; border-radius: 10px; background: rgba(255, 255, 255, 0.14); }
.demo__schalter button {
  padding: 0.4rem 0.95rem;
  border: 0;
  border-radius: 7px;
  background: none;
  color: var(--weiss);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 650;
  cursor: pointer;
}
.demo__schalter button[aria-pressed="true"] { background: var(--weiss); color: var(--blau-tief); }
.demo__schalter button:disabled { cursor: default; }
.demo__status { font-variant-numeric: tabular-nums; }

/* Weichengrafik – Grundfarben für hellen Grund */
.w-schwellen line { stroke: var(--linie); stroke-width: 8; stroke-linecap: round; }
.w-schienen path, .w-zungen path, .w-lenker path { fill: none; stroke: #7d8794; stroke-width: 2.6; stroke-linecap: round; }
.w-zungen path { stroke: var(--blau); stroke-width: 3.4; }
.w-lenker path { stroke: var(--ink); stroke-width: 3; }
.w-stange path { fill: none; stroke: var(--ink); stroke-width: 2.6; stroke-linecap: round; }
.w-stange circle { fill: var(--ink); }
.w-herz { fill: none; stroke: var(--ink); stroke-width: 2.4; }
.w-zeiger { stroke: var(--ink); stroke-width: 1.2; }
.w-marke circle { fill: var(--ink); }
.w-marke text { fill: var(--weiss); font-family: inherit; font-size: 13px; font-weight: 700; }

/* … und auf dem blauen Grund der Bühne */
.demo .w-schwellen line { stroke: rgba(255, 255, 255, 0.16); }
.demo .w-schienen path { stroke: rgba(255, 255, 255, 0.7); }
.demo .w-zungen path { stroke: var(--weiss); transition: transform var(--stellzeit) ease-in-out; }
.demo .w-zunge-a { transform-origin: 300px 140px; }
.demo .w-zunge-b { transform-origin: 300px 160.8px; transform: rotate(2.9deg); }
.demo[data-lage="abzweig"] .w-zunge-a { transform: rotate(-2.9deg); }
.demo[data-lage="abzweig"] .w-zunge-b { transform: rotate(0deg); }
.demo .w-stange { transition: transform var(--stellzeit) ease-in-out; }
.demo .w-stange path { stroke: var(--gelb); }
.demo .w-stange circle { fill: var(--gelb); }
.demo[data-lage="abzweig"] .w-stange { transform: translateY(6px); }
.w-antrieb rect { fill: var(--gelb); }
.w-antrieb text { fill: var(--ink); font-family: inherit; font-size: 13px; font-weight: 700; }
.w-fahrweg { fill: none; stroke: var(--gelb); stroke-width: 9; stroke-linecap: round; opacity: 0; transition: opacity 0.3s; }
.demo[data-lage="gerade"]:not(.is-laufend) .w-fahrweg--gerade,
.demo[data-lage="abzweig"]:not(.is-laufend) .w-fahrweg--abzweig { opacity: 0.55; }

/* Seitenkopf der Unterseiten */
.pagehead { padding-block: clamp(2.5rem, 6vw, 4.5rem); background: var(--blau); color: rgba(255, 255, 255, 0.92); }
.pagehead h1 { max-width: 18ch; color: var(--weiss); font-size: clamp(2rem, 5vw, 3.4rem); }
.pagehead .eyebrow { color: var(--gelb); }
.pagehead .eyebrow a { color: inherit; }
.pagehead .lead { margin: 1.25rem 0 0; }

/* Abschnitte */
.section { padding-block: clamp(3rem, 7vw, 5rem); }
.section--grau { background: var(--grund); }
.section h2 { margin-bottom: 1rem; }
.section__intro { max-width: 46rem; margin-bottom: 1.75rem; color: var(--leise); }
.zwischentitel { margin: 2rem 0 1rem; }
.zwei { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); align-items: start; }

.prose h2 { margin-top: 2.75rem; }
.prose > h2:first-child, .prose > h1:first-child { margin-top: 0; }
.prose h1 { margin-bottom: 1.5rem; font-size: clamp(2rem, 5vw, 3rem); }
.prose h3 { margin: 1.75rem 0 0.5rem; }
.prose li { margin-bottom: 0.5rem; }

.hinweis { margin: 1.5rem 0; padding: 1rem 1.25rem; border-left: 4px solid var(--blau); border-radius: 0 var(--radius-klein) var(--radius-klein) 0; background: var(--blau-zart); color: var(--ink); }
.hinweis p { margin: 0; }
.section--grau .hinweis { background: var(--weiss); }

/* Wegweiser */
.wegweiser { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1rem; margin-top: 1.5rem; }
.wegweiser__karte {
  display: flex;
  flex-direction: column;
  padding: 1.4rem;
  border: 1px solid var(--linie);
  border-radius: var(--radius);
  background: var(--weiss);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.wegweiser__karte:hover { transform: translateY(-2px); border-color: var(--blau); box-shadow: var(--schatten); color: var(--text); }
.wegweiser__karte h3 { margin-bottom: 0.4rem; font-size: 1.25rem; }
.wegweiser__karte p { font-size: 0.9688rem; }
.wegweiser__mehr { display: inline-flex; align-items: center; gap: 0.4rem; margin-top: auto; color: var(--blau); font-size: 0.9375rem; font-weight: 650; }

/* Tabellen */
.tabelle-rahmen { overflow-x: auto; border: 1px solid var(--linie); border-radius: var(--radius); background: var(--weiss); }
.tabelle { width: 100%; min-width: 36rem; border-collapse: collapse; font-size: 0.9688rem; }
.tabelle th, .tabelle td { padding: 0.85rem 1rem; border-bottom: 1px solid var(--linie); text-align: left; vertical-align: top; }
.tabelle tbody tr:last-child th, .tabelle tbody tr:last-child td { border-bottom: 0; }
.tabelle thead th { background: var(--blau-tief); color: var(--weiss); font-weight: 650; }
.tabelle tbody th { width: 11rem; color: var(--ink); font-weight: 650; }

/* Katalogeinträge */
.produkte { display: grid; grid-template-columns: repeat(auto-fill, minmax(19rem, 1fr)); gap: 1rem; }
.produkt { display: grid; grid-template-columns: 5.5rem minmax(0, 1fr); gap: 1rem; padding: 1rem; border: 1px solid var(--linie); border-radius: var(--radius); background: var(--weiss); }
.produkt[hidden] { display: none; }
.produkt__bild { display: grid; place-items: center; width: 5.5rem; height: 5.5rem; border: 1px solid var(--linie); border-radius: var(--radius-klein); background: var(--weiss); overflow: hidden; }
.produkt__bild img { display: block; width: auto; height: auto; max-width: 100%; max-height: 100%; }
.produkt__bild--leer { background: var(--grund); color: #a4adb8; font-size: 1.75rem; }
.produkt__text { display: flex; flex-direction: column; align-items: flex-start; min-width: 0; }
.produkt__kopf { margin: 0 0 0.15rem; color: var(--leise); font-size: 0.8125rem; font-weight: 650; letter-spacing: 0.02em; }
.produkt h3 { margin-bottom: 0.5rem; font-size: 1rem; line-height: 1.3; overflow-wrap: anywhere; }
.produkt__link { display: inline-flex; align-items: center; gap: 0.35rem; margin-top: auto; font-size: 0.9063rem; font-weight: 650; text-decoration: none; }
.produkt__link:hover { text-decoration: underline; }

.chips { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0 0 0.6rem; padding: 0; list-style: none; }
.chips li { padding: 0.1rem 0.55rem; border-radius: 999px; background: var(--blau-zart); color: var(--blau-dunkel); font-size: 0.7813rem; font-weight: 600; }

.spurwahl { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.25rem; }
.spurwahl button { padding: 0.5rem 1rem; border: 1px solid #b8c0ca; border-radius: 999px; background: var(--weiss); color: var(--ink); font: inherit; font-size: 0.9375rem; font-weight: 650; cursor: pointer; }
.spurwahl button:hover { border-color: var(--blau); color: var(--blau); }
.spurwahl button[aria-pressed="true"] { border-color: var(--blau); background: var(--blau); color: var(--weiss); }

.filter { display: grid; gap: 0.35rem; max-width: 30rem; margin-bottom: 1.5rem; }
.filter label { color: var(--ink); font-size: 0.875rem; font-weight: 650; }
.filter input { width: 100%; padding: 0.7rem 0.9rem; border: 1px solid #b8c0ca; border-radius: var(--radius-klein); background: var(--weiss); color: var(--ink); font: inherit; }
.filter input:focus { outline: none; border-color: var(--blau); box-shadow: 0 0 0 3px rgba(29, 79, 156, 0.2); }
.filter__treffer { min-height: 1.4em; margin: 0; color: var(--leise); font-size: 0.875rem; }

.katalog-gruppe { margin-top: 3rem; }
.katalog-gruppe[hidden] { display: none; }
.anzahl { display: inline-block; margin-left: 0.35rem; padding: 0.1rem 0.6rem; border-radius: 999px; background: var(--blau-zart); color: var(--blau-dunkel); font-size: 0.9375rem; font-weight: 650; letter-spacing: 0; vertical-align: middle; }

/* Häufige Fragen */
.faq { display: grid; gap: 0.6rem; margin-top: 1.5rem; }
.faq details { border: 1px solid var(--linie); border-radius: var(--radius); background: var(--weiss); }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 1.25rem; color: var(--ink); font-weight: 650; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex: none; color: var(--blau); font-size: 1.4rem; font-weight: 400; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0; padding: 0 1.25rem 1.1rem; }

/* Seite „Weichen“ */
.legende { margin: 1.5rem 0 0; padding: 0; list-style: none; counter-reset: teil; }
.legende li { position: relative; margin-bottom: 0.9rem; padding-left: 2.6rem; counter-increment: teil; }
.legende li::before {
  content: counter(teil);
  position: absolute;
  left: 0;
  top: 0.1rem;
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--ink);
  color: var(--weiss);
  font-size: 0.875rem;
  font-weight: 700;
}
.legende strong { display: block; color: var(--ink); }

.grafik { position: sticky; top: 5.5rem; margin: 0; padding: 1rem; border: 1px solid var(--linie); border-radius: var(--radius); background: var(--weiss); box-shadow: var(--schatten); }
.grafik svg { display: block; width: 100%; height: auto; }
.grafik figcaption { margin-top: 0.5rem; color: var(--leise); font-size: 0.875rem; }

.bauformen { display: grid; grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); gap: 1rem; }
.bauform-karte { padding: 1.4rem; border: 1px solid var(--linie); border-radius: var(--radius); background: var(--weiss); }
.bauform { display: block; width: 7.5rem; height: 3.5rem; margin-bottom: 0.9rem; }
.bauform path { fill: none; stroke: var(--blau); stroke-width: 4; stroke-linecap: round; }
.bauform-karte h3 { margin-bottom: 0.4rem; font-size: 1.25rem; }
.bauform-karte p { font-size: 0.9688rem; }
.bauform-karte summary { color: var(--blau); font-size: 0.9375rem; font-weight: 650; cursor: pointer; }
.beispiele { margin: 0.75rem 0 0; padding: 0; list-style: none; font-size: 0.9063rem; }
.beispiele li { padding: 0.4rem 0; border-top: 1px solid var(--linie); }
.beispiele a { color: var(--text); text-decoration: none; }
.beispiele a:hover { color: var(--blau); }
.beispiele strong { color: var(--ink); }

.linkkacheln { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 0.75rem; margin: 0; padding: 0; list-style: none; }
.linkkacheln a { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; padding: 1rem 1.25rem; border: 1px solid var(--linie); border-radius: var(--radius); background: var(--weiss); color: var(--ink); font-weight: 650; text-decoration: none; transition: border-color 0.15s, color 0.15s; }
.linkkacheln a:hover { border-color: var(--blau); color: var(--blau); }

/* Seite „Antriebsarten“ */
.arten { display: grid; grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); gap: 1.25rem; }
.art { padding: 1.6rem; border: 1px solid var(--linie); border-top: 5px solid var(--blau); border-radius: var(--radius); background: var(--weiss); }
.art h2 { margin-bottom: 0.25rem; font-size: 1.5rem; }
.art__auch { color: var(--leise); font-size: 0.9063rem; }
.art h3 { margin: 1.25rem 0 0.5rem; font-size: 0.8125rem; letter-spacing: 0.08em; text-transform: uppercase; }
.art ul { margin: 0; font-size: 0.9688rem; }
.art li { margin-bottom: 0.4rem; }

/* Seite „Einbau“ */
.einbauarten { display: grid; grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); gap: 1.25rem; }
.einbauart { padding: 1.6rem; border: 1px solid var(--linie); border-radius: var(--radius); background: var(--weiss); }
.einbauart h2 { margin: 1rem 0 0.5rem; font-size: 1.5rem; }
.einbauart ul { margin: 0; font-size: 0.9688rem; }
.einbauart li { margin-bottom: 0.4rem; }
.einbau { display: block; width: 100%; height: auto; border-radius: var(--radius-klein); background: var(--grund); }
.e-platte { fill: #c9b79a; }
.e-schwelle { fill: #6b5a48; }
.e-schiene { fill: #7d8794; }
.e-antrieb { fill: var(--blau); }
.e-draht { fill: none; stroke: var(--ink); stroke-width: 2.5; stroke-linecap: round; }

.schritte { margin: 0; padding: 0; list-style: none; counter-reset: schritt; }
.schritte li { position: relative; padding: 0 0 1.5rem 3.5rem; counter-increment: schritt; }
.schritte li::before {
  content: counter(schritt);
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--blau);
  color: var(--weiss);
  font-weight: 750;
}
.schritte li::after { content: ""; position: absolute; left: 1.0625rem; top: 2.5rem; bottom: 0.25rem; width: 2px; background: var(--linie); }
.schritte li:last-child { padding-bottom: 0; }
.schritte li:last-child::after { display: none; }
.schritte h3 { margin-bottom: 0.25rem; padding-top: 0.35rem; }
.schritte p { margin: 0; }

/* Spurweiten */
.kennwerte { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); gap: 1rem; margin: 0 0 2rem; }
.kennwerte div { padding: 1rem 1.25rem; border: 1px solid var(--linie); border-radius: var(--radius); background: var(--weiss); }
.kennwerte dt { color: var(--leise); font-size: 0.8125rem; font-weight: 650; letter-spacing: 0.06em; text-transform: uppercase; }
.kennwerte dd { margin: 0.2rem 0 0; color: var(--ink); font-size: 1.375rem; font-weight: 750; letter-spacing: -0.02em; }
.kennwerte dd a { font-size: 1.0625rem; }
.spurkacheln { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 1rem; margin: 0; padding: 0; list-style: none; }
.spurkachel { display: flex; flex-direction: column; height: 100%; padding: 1.4rem; border: 1px solid var(--linie); border-top: 5px solid var(--blau); border-radius: var(--radius); background: var(--weiss); color: var(--text); text-decoration: none; transition: box-shadow 0.15s, transform 0.15s; }
.spurkachel:hover { transform: translateY(-2px); box-shadow: var(--schatten); color: var(--text); }
.spurkachel strong { color: var(--ink); font-size: 2.25rem; font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
.spurkachel span { margin-top: 0.5rem; font-size: 0.9688rem; }
.spurkachel .wegweiser__mehr { margin-top: 1rem; }
.bauform-karte .beispiele { margin-top: 0.5rem; }

/* Glossar */
.glossar { margin: 1rem 0 3rem; border-top: 1px solid var(--linie); }
.glossar div { display: grid; grid-template-columns: 14rem minmax(0, 1fr); gap: 0.25rem 1.5rem; padding: 0.9rem 0; border-bottom: 1px solid var(--linie); }
.glossar dt { color: var(--ink); font-weight: 700; }
.glossar dd { margin: 0; }
.glossar div:target { background: var(--blau-zart); box-shadow: -0.75rem 0 0 var(--blau-zart), 0.75rem 0 0 var(--blau-zart); }

/* Fuß */
.footer { background: var(--blau-tief); color: rgba(255, 255, 255, 0.78); font-size: 0.9375rem; }
.footer a { color: rgba(255, 255, 255, 0.78); text-decoration: none; }
.footer a:hover { color: var(--weiss); text-decoration: underline; }
.footer__grid { display: grid; grid-template-columns: 1.5fr 1.3fr 1.1fr 1fr 0.7fr; gap: 2rem; padding-block: 3.5rem 2.5rem; }
.footer__brand { margin-bottom: 0.6rem; color: var(--weiss); font-size: 1.2rem; font-weight: 750; letter-spacing: -0.02em; }
.footer__brand span { color: rgba(255, 255, 255, 0.6); font-weight: 500; }
.footer__title { margin-bottom: 0.6rem; color: var(--weiss); font-size: 0.8125rem; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; }
.footer ul { margin: 0; padding: 0; list-style: none; }
.footer li { padding: 0.2rem 0; }
.footer__legal { padding-block: 1.25rem; border-top: 1px solid rgba(255, 255, 255, 0.16); font-size: 0.8438rem; }
.footer__legal p { margin: 0; }

@media (max-width: 1120px) {
  .nav-toggle { display: inline-block; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; gap: 0; padding: 0.5rem 1.25rem 1rem; border-bottom: 1px solid var(--linie); background: var(--weiss); box-shadow: var(--schatten); }
  .nav.is-open { display: flex; }
  .nav a { padding: 0.7rem 0.5rem; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .hero__grid, .zwei { grid-template-columns: minmax(0, 1fr); }
  .grafik { position: static; }
}
@media (max-width: 560px) {
  .glossar div { grid-template-columns: minmax(0, 1fr); }
  .footer__grid { grid-template-columns: minmax(0, 1fr); gap: 1.75rem; }
  .produkte, .bauformen, .arten, .einbauarten, .wegweiser { grid-template-columns: minmax(0, 1fr); }
  .demo__status { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  :root { --stellzeit: 0s; }
  .wegweiser__karte:hover { transform: none; }
}