:root {
  --grund: #e4e3df;
  --schiefer: #26292d;
  --text: rgb(31 33 36 / .92);
  --text-2: rgb(31 33 36 / .68);
  --text-3: rgb(31 33 36 / .48);
  --hell: rgb(236 234 229 / .92);
  --hell-2: rgb(236 234 229 / .68);
  --hell-3: rgb(236 234 229 / .48);
  --fuge: rgb(31 33 36 / .12);
  --gold: #f0b347;
  --rand: 20px;
  --breite: 1200px;
  --luft: 72px;
  --expo: cubic-bezier(0.19, 1, 0.22, 1);
  --anzeige: "Barlow Semi Condensed", "Arial Narrow", sans-serif;
  --text-schrift: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}
@media (min-width: 900px) {
  :root { --rand: 40px; --luft: 120px; }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--grund);
  color: var(--text);
  font: 400 17px/1.5 var(--text-schrift);
  letter-spacing: -0.006em;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
.mono { font-family: var(--mono); font-size: 0.88em; letter-spacing: 0; }

/* Fugen: das Raster der ganzen Seite (Vorbild Pearl) */
.fugen {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  max-width: calc(var(--breite) + 2 * var(--rand)); margin: 0 auto;
  padding: 0 var(--rand);
  display: grid; grid-template-columns: 1fr;
}
.fugen i { border-left: 1px solid var(--fuge); border-right: 1px solid var(--fuge); }
.fugen i:nth-child(n+2) { display: none; }
@media (min-width: 900px) {
  .fugen { grid-template-columns: 1fr 1fr; }
  .fugen i:nth-child(2) { display: block; border-left: 0; }
}

main, .kopf, .fuss { position: relative; z-index: 1; }

/* Knöpfe */
.knopf {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 24px;
  background: var(--gold); color: #24221d;
  font: 500 16px/1 var(--text-schrift);
  text-decoration: none; border: 0; border-radius: 999px; cursor: pointer;
  transition: background-color 150ms ease-out, transform 150ms ease-out;
}
.knopf:hover { background: #f4c164; }
.knopf:active { transform: scale(0.98); }
.knopf:focus-visible, a:focus-visible, input:focus-visible + span, textarea:focus-visible, input:focus-visible {
  outline: 2px solid var(--gold); outline-offset: 3px;
}
.knopf--klein { min-height: 40px; padding: 0 16px; font-size: 15px; }
.knopf--voll { width: 100%; }

/* Kopf */
.kopf {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 24px;
  height: 72px; padding: 0 var(--rand);
  max-width: calc(var(--breite) + 2 * var(--rand)); margin: 0 auto;
}
.kopf::before {
  content: ""; position: absolute; inset: 0 calc(50% - 50vw); z-index: -1;
  background: rgb(228 227 223 / .88); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--fuge);
  opacity: 0; transition: opacity 250ms ease-out;
}
.kopf.ist-unten::before { opacity: 1; }
.marke {
  margin-right: auto; text-decoration: none; text-align: center;
  display: inline-grid; gap: 2px; padding: 6px 12px;
  border: 2px solid var(--gold); border-radius: 8px;
}
.marke__name { font: 500 19px/1 var(--anzeige); letter-spacing: -0.005em; }
.marke__person { font: 500 11px/1 var(--anzeige); letter-spacing: 0.02em; color: var(--text-2); }
.nav { display: none; gap: 24px; font-size: 15px; }
.nav a { text-decoration: none; color: var(--text-2); transition: color 150ms ease-out; }
.nav a:hover { color: var(--text); }
.kopf .knopf { opacity: 0; pointer-events: none; transition: opacity 250ms ease-out, background-color 150ms ease-out; }
.kopf.zeig-knopf .knopf { opacity: 1; pointer-events: auto; }
@media (min-width: 900px) { .nav { display: flex; } }

/* Einstieg */
.einstieg {
  max-width: calc(var(--breite) + 2 * var(--rand)); margin: 0 auto;
  padding: 24px var(--rand) var(--luft);
  display: grid; gap: 40px;
}
.titel {
  font: 500 46px/0.98 var(--anzeige); letter-spacing: -0.025em;
  color: rgb(31 33 36 / .95);
}
.zeile { display: block; overflow: hidden; padding-bottom: 0.06em; }
.zeile > span { display: block; }
.einstieg__zeile { margin-top: 24px; color: var(--text-2); max-width: 40ch; }
.einstieg__text .knopf { margin-top: 24px; }

.wand {
  display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: auto; gap: 5px;
  background: #cdcac3; padding: 5px; border-radius: 4px;
}
.platte { aspect-ratio: 1; overflow: hidden; border-radius: 2px; background: #d8d6d0; }
.platte--gross { grid-column: 1 / 3; grid-row: 1 / 3; }
.platte--breit { grid-column: 1 / 4; aspect-ratio: 3 / 1; }
.platte img { width: 100%; height: 100%; object-fit: cover; }

@media (min-width: 900px) {
  .einstieg {
    grid-template-columns: repeat(4, 1fr); align-items: end;
    min-height: calc(100svh - 72px); padding-top: 40px; gap: 0;
  }
  .einstieg__text { grid-column: 1 / 3; padding-right: 40px; padding-bottom: 8px; }
  .titel { font-size: clamp(72px, 6.3vw, 92px); letter-spacing: -0.03em; }
  .wand { grid-column: 3 / 5; }
}

/* Abschnitte */
.abschnitt {
  max-width: calc(var(--breite) + 2 * var(--rand)); margin: 0 auto;
  padding: var(--luft) var(--rand);
}
.h2 {
  font: 500 40px/1 var(--anzeige); letter-spacing: -0.02em;
  margin-bottom: 40px;
}
@media (min-width: 900px) { .h2 { font-size: 64px; margin-bottom: 64px; } }

/* Leistungen: ruhige Liste, Bild folgt der Maus */
.liste { border-top: 1px solid var(--fuge); }
.liste__punkt {
  display: grid; grid-template-columns: 72px 1fr; gap: 8px 16px;
  padding: 24px 0; border-bottom: 1px solid var(--fuge);
}
.liste__bild { grid-row: 1 / 3; width: 72px; height: 72px; object-fit: cover; border-radius: 2px; }
.liste__punkt h3 { font: 500 26px/1.05 var(--anzeige); letter-spacing: -0.01em; }
.liste__punkt p { color: var(--text-2); font-size: 16px; max-width: 52ch; }
.nebenbei { margin-top: 40px; color: var(--text-3); max-width: 60ch; font-size: 16px; }

.folger {
  position: fixed; top: 0; left: 0; z-index: 5; pointer-events: none;
  width: 280px; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 4px;
  opacity: 0; transform: translate3d(0,0,0) scale(0.9);
  transition: opacity 200ms ease-out, scale 300ms var(--expo);
}
.folger.ist-an { opacity: 1; scale: 1; }

@media (min-width: 900px) {
  .liste__punkt {
    grid-template-columns: repeat(4, 1fr); gap: 0; padding: 40px 0;
    transition: padding-left 300ms var(--expo);
  }
  .liste__bild { display: none; }
  .liste__punkt h3 { grid-column: 1 / 3; font-size: 40px; }
  .liste__punkt p { grid-column: 3 / 5; padding-top: 8px; }
  .liste__punkt:hover { padding-left: 16px; }
  .nebenbei { margin-left: 50%; }
}

/* Arbeiten: ein ruhiges Raster aus gleichen Platten */
.galerie { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 5px; }
.bild { position: relative; overflow: hidden; }
.bild img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 2px; background: #d8d6d0; }
.bild figcaption { padding-top: 8px; font-size: 14px; line-height: 1.35; color: var(--text-2); }
@media (min-width: 900px) {
  .galerie { grid-template-columns: repeat(4, 1fr); gap: 40px 5px; }
}
.platzhalter {
  margin-top: 40px; font-family: var(--mono); font-size: 14px; color: var(--text-3);
  border: 1px dashed var(--fuge); padding: 8px 16px; display: inline-block; border-radius: 2px;
}
.platzhalter--hell { color: var(--hell-3); border-color: rgb(236 234 229 / .2); }

/* Bild öffnet sich von unten */
.js .bild img { clip-path: inset(100% 0 0 0); scale: 1.15; transition: clip-path 900ms var(--expo), scale 1200ms var(--expo); }
.js .bild.ist-da img { clip-path: inset(0 0 0 0); scale: 1; }

/* Silikonfugen */
.fuge__satz {
  font: 400 26px/1.2 var(--anzeige); letter-spacing: -0.01em; max-width: 24ch;
}
.fuge__bild { margin: 64px 0 40px; }
.fuge__platte {
  height: 160px; border-radius: 2px;
  background: #d8d6d0 url(img/klinkerwand-anthrazit.jpg) center 30% / cover no-repeat;
}
.fuge__platte--unten { background-image: url(img/dusche-mosaikstreifen.jpg); background-position: center 85%; }
.fuge__linie { display: block; width: 100%; height: 20px; overflow: visible; }
.fuge__alt { fill: none; stroke: #b9b3a2; stroke-width: 7; stroke-linecap: round; vector-effect: non-scaling-stroke; }
.fuge__neu {
  fill: none; stroke: var(--gold); stroke-width: 7; stroke-linecap: round; vector-effect: non-scaling-stroke;
  stroke-dasharray: 1; stroke-dashoffset: var(--neu, 1);
}
.fuge__schritte { display: grid; gap: 16px; max-width: 60ch; }
.fuge__schritte li { padding-left: 24px; position: relative; color: var(--text-2); }
.fuge__schritte li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 12px; height: 1px; background: var(--text-3); }
@media (min-width: 900px) {
  .fuge { display: grid; grid-template-columns: repeat(4, 1fr); }
  .fuge .h2 { grid-column: 1 / 3; }
  .fuge__satz { grid-column: 3 / 5; font-size: 34px; padding-top: 8px; }
  .fuge__bild { grid-column: 1 / 5; }
  .fuge__platte { height: 240px; }
  .fuge__schritte { grid-column: 3 / 5; }
}

/* Kontakt: Mittelpunkt */
.kontakt { background: var(--schiefer); color: var(--hell); }
.kontakt__innen {
  max-width: calc(var(--breite) + 2 * var(--rand)); margin: 0 auto;
  padding: var(--luft) var(--rand); display: grid; gap: 40px;
}
.kontakt__kopf { display: grid; gap: 24px; }
.kontakt__titel { font: 500 64px/0.95 var(--anzeige); letter-spacing: -0.03em; }
.kontakt__gruss { font: 400 30px/1.15 var(--anzeige); color: var(--hell); letter-spacing: -0.01em; }
.kontakt__person { color: var(--hell-2); max-width: 52ch; }
.formular { display: grid; gap: 24px; }
.themen { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.themen legend, .feld > span { font-size: 14px; color: var(--hell-3); margin-bottom: 8px; padding: 0; }
.themen legend { width: 100%; }
.themen label { position: relative; }
.themen input { position: absolute; opacity: 0; }
.themen span {
  display: inline-block; padding: 8px 16px; border-radius: 999px; font-size: 15px;
  border: 1px solid rgb(236 234 229 / .24); cursor: pointer;
  transition: background-color 150ms ease-out, color 150ms ease-out, border-color 150ms ease-out;
}
.themen input:checked + span { background: var(--hell); color: var(--schiefer); border-color: var(--hell); }
.feld { display: grid; }
.feld input, .feld textarea {
  font: inherit; color: var(--hell); background: transparent;
  border: 0; border-bottom: 1px solid rgb(236 234 229 / .3); border-radius: 0;
  padding: 8px 0; resize: vertical;
}
.feld textarea::placeholder { color: var(--hell-3); }
.formular__hinweis { font-size: 14px; color: var(--hell-3); }
.adresse { display: grid; gap: 24px; align-content: start; color: var(--hell-2); }
.adresse .mono { color: var(--hell); line-height: 1.6; }
.adresse a { color: var(--hell); text-underline-offset: 4px; text-decoration-color: rgb(236 234 229 / .4); }
@media (min-width: 900px) {
  .kontakt__innen { grid-template-columns: repeat(4, 1fr); gap: 64px 0; }
  .kontakt__kopf { grid-column: 1 / 5; grid-template-columns: repeat(4, 1fr); align-items: end; gap: 24px 0; }
  .kontakt__titel { grid-column: 1 / 3; font-size: 128px; }
  .kontakt__gruss { grid-column: 3 / 5; font-size: 44px; }
  .kontakt__person { grid-column: 3 / 5; }
  .formular { grid-column: 1 / 3; padding-right: 64px; }
  .adresse { grid-column: 3 / 5; }
}

/* Fuss */
.fuss {
  background: var(--schiefer); color: var(--hell-3); font-size: 14px;
  padding: 24px var(--rand) 40px; display: grid; gap: 8px;
  border-top: 1px solid rgb(236 234 229 / .12);
}
.fuss a { color: var(--hell-2); }
@media (min-width: 900px) {
  .fuss { grid-template-columns: 1fr auto; padding: 24px max(var(--rand), calc((100vw - var(--breite)) / 2)) 40px; }
}

/* Beim Laden: Titelzeilen steigen, Platten werden verlegt */
.js .zeile > span { transform: translateY(105%); }
.js .platte { opacity: 0; transform: translateY(-16px) scale(1.04); }
.ist-geladen .zeile > span { transform: none; transition: transform 1000ms var(--expo); }
.ist-geladen .zeile:nth-child(2) > span { transition-delay: 90ms; }
.ist-geladen .zeile:nth-child(3) > span { transition-delay: 180ms; }
.ist-geladen .platte { opacity: 1; transform: none; transition: opacity 400ms ease-out, transform 800ms var(--expo); }
.ist-geladen .platte:nth-child(1) { transition-delay: 300ms; }
.ist-geladen .platte:nth-child(2) { transition-delay: 420ms; }
.ist-geladen .platte:nth-child(3) { transition-delay: 540ms; }
.ist-geladen .platte:nth-child(4) { transition-delay: 660ms; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .zeile > span, .js .platte { transform: none; opacity: 1; }
  .js .bild img { clip-path: none; scale: 1; transition: none; }
  .fuge__neu { stroke-dashoffset: 0; }
  .fuge__alt { opacity: 0; }
  .folger { display: none; }
}

/* Kreuzchen an den Ecken der Wand (Vorbild Tekt) */
.wand { position: relative; }
.wand::before, .wand::after {
  content: ""; position: absolute; width: 15px; height: 15px; pointer-events: none;
  background: linear-gradient(var(--text-3), var(--text-3)) center / 1px 100% no-repeat,
              linear-gradient(var(--text-3), var(--text-3)) center / 100% 1px no-repeat;
}
.wand::before { top: -8px; left: -8px; }
.wand::after { bottom: -8px; right: -8px; }

.adresse a, .fuss a { display: inline-block; padding: 8px 0; }