/* 95 – Beton · Brutalistische Architektur als Monografie: Sichtbeton, Kragplatten, Koten, Grundriss */
:root {
  --paper: #efeee9;
  --paper-2: #e6e4de;
  --ink: #1c1b19;
  --ink-2: #47453f;
  --line: #8b8780;
  --c1: #d4d1ca;   /* heller Beton */
  --c2: #bab6ae;
  --c3: #8f8b84;
  --c4: #55524d;   /* dunkler Beton */
  --c5: #34322f;
  --o: #f2611d;    /* Bauzaun-Orange */
  --o-ink: #b8460c;
  --tex: url("beton.svg");
  --hole: radial-gradient(circle, rgba(20,19,17,.62) 0 4.5px, rgba(20,19,17,.3) 5.5px, rgba(255,255,255,.32) 7px, rgba(255,255,255,0) 8.5px);
  --shadow: rgba(36, 33, 29, .2);
  --wide: 'Archivo', 'Arial Black', 'Helvetica Neue', Arial, sans-serif;
  --sans: 'Inter Tight', 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --wrap: 1240px;
  --pad: clamp(16px, 4.4vw, 64px);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.6 var(--sans); overflow-x: hidden; font-feature-settings: 'tnum' 0; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-family: var(--wide); font-stretch: 125%; font-weight: 800; letter-spacing: -.012em; line-height: 1.02; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }
figure { margin: 0; }
svg { fill: currentColor; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--o); outline-offset: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 60; background: var(--ink); color: #fff; padding: 10px 16px; font-weight: 600; text-decoration: none; }
.skip:focus { top: 12px; }
.wrap { max-width: calc(var(--wrap) + 2 * var(--pad)); margin-inline: auto; padding-inline: var(--pad); }
.concrete { background: var(--tex), var(--c1); }

/* ---------- Bausteine ---------- */
.label { display: flex; align-items: center; gap: 12px; font: 600 12.5px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--ink-2); }
.bubble { display: inline-grid; place-items: center; width: 30px; height: 30px; flex: none; border: 1.5px solid currentColor; border-radius: 50%; font: 700 12px/1 var(--wide); font-stretch: 100%; letter-spacing: 0; color: var(--ink); }
.bubble--o { background: var(--o); border-color: var(--o); color: var(--ink); }
.sec-head { display: grid; gap: 20px; max-width: 900px; }
.sec-head h2 { font-size: clamp(32px, 4.2vw, 60px); }
.intro { font-size: clamp(17px, 1.35vw, 19px); line-height: 1.6; color: var(--ink-2); max-width: 62ch; }
figcaption, .stair__cap { font: 500 13px/1.4 var(--sans); color: var(--ink-2); display: flex; gap: 12px; align-items: baseline; }
figcaption > span:first-child, .stair__cap > span:first-child { font-weight: 700; color: var(--ink); letter-spacing: .06em; text-transform: uppercase; font-size: 11.5px; }

.btn { display: inline-flex; align-items: center; gap: 12px; min-height: 52px; padding: 14px 22px; font: 700 15px/1.1 var(--sans); letter-spacing: .02em; text-decoration: none; border: 2px solid var(--ink); transition: transform .18s, box-shadow .18s, background .18s; }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn--o { background: var(--o); color: var(--ink); box-shadow: 8px 8px 0 var(--ink); }
.btn--o:hover { transform: translate(-2px, -2px); box-shadow: 10px 10px 0 var(--ink); }
.btn--line { background: transparent; color: var(--ink); }
.btn--line:hover { background: var(--ink); color: var(--paper); }
.btn:active { transform: translate(4px, 4px); box-shadow: 2px 2px 0 var(--ink); }
.ctas { display: flex; flex-wrap: wrap; gap: 16px 18px; }

/* ---------- Kopf ---------- */
.top { position: sticky; top: 0; z-index: 40; background: rgba(239, 238, 233, .94); border-bottom: 1.5px solid var(--ink); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.top__in { display: flex; align-items: center; gap: 28px; min-height: 76px; }
.logo { flex: none; display: block; }
.logo img { width: 66px; height: auto; aspect-ratio: 1510 / 1300; }
.nav { flex: 1; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav__list { display: flex; gap: 6px; margin-left: 12px; }
.nav__list a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; font-weight: 600; font-size: 15px; text-decoration: none; }
.nav__list a .bubble { width: 26px; height: 26px; font-size: 11px; transition: background .15s, color .15s; }
.nav__list a:hover .bubble, .nav__list a:focus-visible .bubble { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.nav__end { display: flex; align-items: center; gap: 14px; }
.tel { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 15px; text-decoration: none; font-variant-numeric: tabular-nums; }
.tel svg { width: 17px; height: 17px; color: var(--o-ink); }
.lang { display: inline-grid; place-items: center; width: 44px; height: 44px; border: 1.5px solid var(--ink); font: 800 13px/1 var(--wide); font-stretch: 112%; text-decoration: none; }
.lang:hover { background: var(--ink); color: var(--paper); }
.menu { display: none; margin-left: auto; align-items: center; gap: 10px; min-height: 44px; padding: 8px 14px; background: transparent; border: 1.5px solid var(--ink); font-weight: 700; cursor: pointer; }
.menu__ico { display: grid; gap: 4px; width: 18px; }
.menu__ico i { display: block; height: 2px; background: currentColor; transition: transform .2s, opacity .2s; }
.top.open .menu__ico i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.top.open .menu__ico i:nth-child(2) { opacity: 0; }
.top.open .menu__ico i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Hero: Wand, Kragplatte, Fensterband ---------- */
.hero { position: relative; overflow: hidden; padding: 0 0 76px; isolation: isolate; }
.hero__sky { position: absolute; inset: 0; z-index: -3; background:
  repeating-linear-gradient(0deg, transparent 0 31px, rgba(0,0,0,.035) 31px 32px),
  repeating-linear-gradient(90deg, transparent 0 31px, rgba(0,0,0,.035) 31px 32px), var(--paper); }
.hero__wall { position: absolute; z-index: -2; left: 0; top: 0; bottom: 52px; width: min(76%, calc(50% + 330px)); background: var(--hole) 64px 58px / 256px 20px repeat-x, var(--hole) 64px calc(100% - 22px) / 256px 20px repeat-x, var(--tex), var(--c1); box-shadow: inset -2px 0 0 rgba(0,0,0,.18); }
.hero__roof { position: absolute; left: 0; top: 0; height: 44px; width: calc(100vw); max-width: none; background: var(--tex), var(--c2); background-position: 0 -40px; box-shadow: inset 0 -10px 0 rgba(0,0,0,.18); }
.hero__roof-shade { position: absolute; left: 0; right: 0; top: 44px; height: 70px; background: linear-gradient(180deg, rgba(30,28,25,.26), rgba(30,28,25,.26) 60%, rgba(30,28,25,0)); clip-path: polygon(0 0, 100% 0, 100% 100%, 0 40%); }
.hero::before { content: ''; position: absolute; z-index: -2; left: 0; right: 0; bottom: 0; height: 52px; background: repeating-linear-gradient(-45deg, var(--c4) 0 1.5px, transparent 1.5px 9px), var(--paper-2); border-top: 2.5px solid var(--ink); }
.hero__grid { position: relative; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 24px; padding-top: clamp(76px, 8.6vh, 100px); min-height: min(calc(100vh - 152px), 760px); align-content: start; }
.rail { position: absolute; left: calc(var(--pad) * -1 + 14px); top: 70px; bottom: 0; width: 1px; background: var(--ink); opacity: .65; display: none; }
.rail__k { position: absolute; left: 6px; top: calc(var(--y) * 31%); display: flex; align-items: center; gap: 6px; font: 600 11px/1 var(--sans); font-variant-numeric: tabular-nums; letter-spacing: .04em; white-space: nowrap; }
.rail__k svg { width: 14px; height: 9px; }
.hero__head { grid-column: 1 / span 9; display: grid; gap: 22px; padding-right: 20px; }
.kicker { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; font: 600 13px/1.3 var(--sans); letter-spacing: .14em; text-transform: uppercase; }
.kicker__tag { padding: 6px 10px; border: 1.5px solid var(--ink); letter-spacing: .1em; font-size: 11.5px; }
.hero h1 { font-size: clamp(36px, 4.35vw, 64px); line-height: .98; letter-spacing: -.02em; text-wrap: balance; max-width: 12.6em; }
.ribbon { grid-column: 1 / span 7; grid-row: 2; margin-top: clamp(28px, 5vh, 52px); align-self: start; display: grid; gap: 10px; }
.ribbon__glass { position: relative; height: clamp(150px, 21vh, 196px); border: 10px solid var(--c4); border-top-color: var(--c5); border-left-color: var(--c5); background: #222; overflow: hidden; box-shadow: 14px 16px 0 var(--shadow); }
.ribbon__glass img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 58%; filter: grayscale(.35) contrast(1.05) brightness(.97); }
.ribbon__glass::before { content: ''; position: absolute; inset: 0; z-index: 1; background: repeating-linear-gradient(90deg, transparent 0 calc(25% - 4px), var(--c5) calc(25% - 4px) 25%); }
.ribbon__glass::after { content: ''; position: absolute; inset: 0; z-index: 2; background: linear-gradient(115deg, rgba(255,255,255,.18), rgba(255,255,255,0) 40%), linear-gradient(180deg, rgba(0,0,0,.35), rgba(0,0,0,0) 30%); }
.cant { grid-column: 8 / span 5; grid-row: 2; margin-top: clamp(28px, 5vh, 52px); margin-right: calc(var(--pad) * -1 + 12px); position: relative; }
.cant__face { position: relative; padding: clamp(24px, 2.6vw, 36px); background: var(--tex), var(--c1); background-position: 0 -120px; border-bottom: 14px solid var(--c3); box-shadow: 0 30px 0 var(--shadow), inset 0 1px 0 rgba(255,255,255,.4); display: grid; gap: 24px; }
.schnitt { position: absolute; right: calc(var(--pad) * -1 + 34px); top: 74px; width: clamp(200px, 17.5vw, 262px); display: grid; gap: 8px; }
.schnitt svg { width: 100%; height: auto; overflow: visible; }
.schnitt .t, .schnitt text { font: 600 10.5px/1 var(--sans); fill: var(--ink); letter-spacing: .03em; }
.lead { font-size: clamp(16px, 1.22vw, 18px); line-height: 1.58; }
.cant__avail { display: flex; align-items: center; gap: 10px; margin-top: 44px; font: 600 13.5px/1.3 var(--sans); }
.dot { width: 10px; height: 10px; background: var(--o); border: 1.5px solid var(--ink); flex: none; }

/* ---------- Geschossdecken als Trenner ---------- */
.decke { position: relative; background: var(--tex), var(--c2); border-top: 2px solid var(--ink); box-shadow: inset 0 -12px 0 rgba(0,0,0,.14); height: 46px; }
.decke::after { content: ''; position: absolute; left: 0; right: 0; top: 100%; height: 22px; background: linear-gradient(180deg, rgba(30,28,25,.18), rgba(30,28,25,0)); pointer-events: none; }
.decke .wrap { height: 100%; display: flex; align-items: center; gap: 18px; font: 700 11.5px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--ink); padding-bottom: 10px; }
.decke__k { display: inline-flex; align-items: center; gap: 8px; font-variant-numeric: tabular-nums; letter-spacing: .04em; font-size: 13px; }
.decke__k svg { width: 16px; height: 10px; }
.decke__axis { margin-left: auto; display: inline-grid; place-items: center; min-width: 26px; height: 26px; padding: 0 6px; border: 1.5px solid var(--ink); border-radius: 13px; letter-spacing: 0; background: var(--paper); }

/* ---------- Schwerpunkt: Grundriss ---------- */
.focus { padding-block: clamp(80px, 9vw, 140px); }
.plan { margin-top: clamp(48px, 5vw, 72px); display: grid; gap: 14px; }
.plan__sheet { position: relative; padding: 36px 36px 64px; background:
  repeating-linear-gradient(0deg, transparent 0 23px, rgba(0,0,0,.045) 23px 24px),
  repeating-linear-gradient(90deg, transparent 0 23px, rgba(0,0,0,.045) 23px 24px), #f6f5f1; border: 1.5px solid var(--ink); }
.plan__grid { --wall: 16px; display: grid; grid-template-columns: 1.25fr 1fr 1fr 1.15fr; grid-template-areas: "a a b c" "d e e f"; gap: var(--wall); padding: var(--wall); background: var(--c5); background-image: repeating-linear-gradient(45deg, rgba(255,255,255,.08) 0 2px, transparent 2px 7px); }
.room { position: relative; background: #f6f5f1; padding: 26px 26px 76px; display: grid; align-content: start; gap: 10px; min-height: 210px; }
.room--1 { grid-area: a; } .room--2 { grid-area: b; } .room--3 { grid-area: c; }
.room--4 { grid-area: d; } .room--5 { grid-area: e; } .room--6 { grid-area: f; }
.room--1, .room--5 { padding-right: 34%; }
.room__no { font: 700 12px/1 var(--sans); letter-spacing: .1em; display: inline-flex; align-items: center; gap: 8px; color: var(--ink-2); }
.room__no::before { content: ''; width: 22px; height: 1.5px; background: currentColor; }
.room h3 { font-size: clamp(19px, 1.6vw, 24px); font-stretch: 118%; line-height: 1.08; hyphens: auto; }
.room p { font-size: 15.5px; line-height: 1.55; color: var(--ink-2); hyphens: auto; }
.door { position: absolute; width: 56px; height: 56px; pointer-events: none; }
.door::before { content: ''; position: absolute; background: #f6f5f1; }
.door::after { content: ''; position: absolute; inset: 0; border: 1px solid var(--ink); border-left: 0; border-bottom: 0; border-top-right-radius: 100%; opacity: .55; }
.door--t { top: 0; right: 30px; }
.room--1 .door--t { right: auto; left: 40%; }
.door--t::before { left: 0; right: 0; top: calc(var(--wall, 16px) * -1); height: 16px; }
.door--t::after { border-top: 0; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); border-radius: 0 0 100% 0; border-top-right-radius: 0; border-bottom-right-radius: 100%; }
.door--l { left: 0; bottom: 10px; }
.door--l::before { top: 0; bottom: 0; left: -16px; width: 16px; }
.door--l::after { border-right: 1px solid var(--ink); border-top: 1px solid var(--ink); border-top-right-radius: 100%; }
.stairs { position: absolute; right: 26px; top: 26px; width: 74px; height: 120px; border: 1px solid var(--ink); opacity: .5; background: repeating-linear-gradient(0deg, transparent 0 10px, var(--ink) 10px 11px); }
.stairs::after { content: ''; position: absolute; left: 50%; top: 8px; bottom: 8px; width: 1px; background: var(--ink); }
.plan__meta { position: absolute; left: 36px; right: 36px; bottom: 18px; display: flex; justify-content: space-between; align-items: center; color: var(--ink); }
.north { display: inline-flex; align-items: center; gap: 8px; font: 800 13px/1 var(--wide); }
.north svg { width: 28px; height: 28px; }
.scale { position: relative; display: grid; grid-template-columns: repeat(4, 34px); height: 8px; border: 1.5px solid var(--ink); }
.scale i:nth-child(odd) { background: var(--ink); }
.scale b { position: absolute; top: 12px; font: 600 10px/1 var(--sans); }
.scale b:nth-of-type(1) { left: -3px; } .scale b:nth-of-type(2) { left: calc(50% - 3px); } .scale b:nth-of-type(3) { right: -6px; }

/* Kennzahlen: in Beton gegossen */
.cast { margin-top: clamp(64px, 7vw, 104px); background: var(--hole) 40px 22px / 240px 20px repeat-x, var(--hole) 40px calc(100% - 20px) / 240px 20px repeat-x, var(--tex), var(--c2); background-position: 0 -64px; border-bottom: 16px solid var(--c4); box-shadow: 18px 24px 0 var(--shadow); }
.cast__list { display: grid; grid-template-columns: 1.1fr .8fr 1.3fr; }
.cast__list li { display: grid; align-content: end; gap: 12px; padding: clamp(28px, 3.4vw, 48px); min-height: 220px; }
.cast__list li + li { box-shadow: inset 2px 0 0 rgba(0,0,0,.16), inset 3px 0 0 rgba(255,255,255,.3); }
.cast b { font: 900 clamp(54px, 7vw, 108px)/.9 var(--wide); font-stretch: 125%; letter-spacing: -.03em; color: #4a4741; text-shadow: -1px -1px 0 rgba(0,0,0,.5), 1px 1px 0 rgba(255,255,255,.6), 2px 2px 0 rgba(255,255,255,.2); white-space: nowrap; }
.cast span { font: 700 13.5px/1.35 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--ink); max-width: 24ch; }

/* Beispielroute: Achsraster */
.axes { margin-top: clamp(64px, 7vw, 104px); padding: clamp(24px, 3vw, 40px); border: 1.5px solid var(--ink); background: #f6f5f1; display: grid; gap: 30px; }
.axes__head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 16px; }
.axes__head b { font: 800 clamp(20px, 2vw, 26px)/1.1 var(--wide); font-stretch: 120%; color: var(--ink); }
.axes__fig { font: 700 11.5px/1 var(--sans) !important; letter-spacing: .08em; text-transform: uppercase; color: var(--ink); }
.axes__m { margin-left: auto; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; }
.axes__row { --b: 58px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)) 0; margin-inline: calc(var(--b) / 2); padding-top: 4px; }
.ax { position: relative; height: 196px; }
.ax::before { content: ''; position: absolute; left: 0; top: var(--b); bottom: 0; width: 0; border-left: 1.2px dashed var(--ink); opacity: .5; } /* Achslinie */
.ax__b { position: absolute; left: 0; top: 0; transform: translateX(-50%); width: var(--b); height: var(--b); display: grid; place-items: center; border: 2px solid var(--ink); border-radius: 50%; background: #f6f5f1; font: 800 14px/1 var(--wide); font-stretch: 110%; z-index: 2; }
.ax--end .ax__b, .ax:first-child .ax__b { background: var(--ink); color: var(--paper); }
.ax__seg { position: absolute; left: 0; right: 0; top: 92px; height: 32px; display: grid; place-items: start center; font: 700 12px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; }
.ax__seg::before { content: ''; position: absolute; left: 0; right: 0; top: 18px; border-top: 1px solid var(--ink); } /* Maßlinie */
.ax__seg::after { content: ''; position: absolute; left: -6px; top: 12px; width: 12px; height: 12px; background: linear-gradient(45deg, transparent 45%, var(--ink) 45% 58%, transparent 58%); }
.ax:not(.ax--end)::after { content: ''; position: absolute; left: 0; right: 0; top: 150px; height: 10px; background: var(--ink); } /* Strecke */
.ax--car::after { background: repeating-linear-gradient(90deg, var(--o) 0 18px, transparent 18px 28px) !important; height: 8px; }
.ax--fly::after { background: var(--ink); }
.axes__row::after { content: ''; }
.axes__txt { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px 40px; align-items: baseline; padding-top: 24px; border-top: 1.5px solid var(--ink); }
.axes__route { font-weight: 600; font-size: 17px; }
.axes__note { color: var(--ink-2); font-size: 15px; }

/* ---------- Leistungen: Kern mit Kragplatten ---------- */
.services { padding-block: clamp(80px, 9vw, 140px); background:
  repeating-linear-gradient(90deg, transparent 0 calc(100% / 12 - 1px), rgba(0,0,0,.05) calc(100% / 12 - 1px) calc(100% / 12)), var(--paper); }
.sec-head--wide { max-width: 980px; }
.tower { position: relative; margin-top: clamp(56px, 6vw, 88px); }
.tower__core { position: absolute; z-index: 5; left: 50%; top: -40px; bottom: -60px; width: 128px; transform: translateX(-50%); background: var(--tex), var(--c3); background-position: -60px 0; box-shadow: inset 6px 0 0 rgba(255,255,255,.14), inset -12px 0 0 rgba(0,0,0,.14); }
.tower__core span { position: absolute; left: 50%; top: 12px; transform: translateX(-50%); font: 700 11px/1 var(--sans); letter-spacing: .2em; text-transform: uppercase; color: var(--paper); }
.slabs { position: relative; display: grid; grid-template-columns: 1fr 128px 1fr; grid-auto-rows: minmax(120px, auto); row-gap: 28px; }
.slab { position: relative; display: grid; align-content: start; gap: 10px; padding: 28px 32px 48px; background: var(--hole) 60px calc(100% - 12px) / 210px 20px repeat-x, var(--tex), var(--c1); border-bottom: 16px solid var(--c3); box-shadow: 0 28px 0 var(--shadow); transition: transform .3s ease, box-shadow .3s ease; }
.slab:nth-child(odd) { grid-column: 1 / 3; margin-right: 0; padding-right: calc(128px + 32px); }
.slab:nth-child(even) { grid-column: 2 / 4; padding-left: calc(128px + 32px); }
.slab:nth-child(1) { grid-row: 1 / 3; } .slab:nth-child(2) { grid-row: 2 / 4; } .slab:nth-child(3) { grid-row: 3 / 5; }
.slab:nth-child(4) { grid-row: 4 / 6; } .slab:nth-child(5) { grid-row: 5 / 7; } .slab:nth-child(6) { grid-row: 6 / 8; }
.slab:nth-child(odd) { margin-left: 4%; }
.slab:nth-child(even) { margin-right: 4%; }
.slab:nth-child(3) { margin-left: 0; } .slab:nth-child(4) { margin-right: 10%; } .slab:nth-child(6) { margin-right: 0; } .slab:nth-child(5) { margin-left: 12%; }
.slab:nth-child(odd) { z-index: 1; } .slab:nth-child(even) { z-index: 2; }
.slab:hover { transform: translateY(-4px); box-shadow: 0 36px 0 var(--shadow); }
.slab__no { font: 900 13px/1 var(--wide); letter-spacing: .06em; color: var(--o-ink); }
.slab h3 { font-size: clamp(22px, 2.1vw, 30px); hyphens: auto; }
.slab p { font-size: 16px; line-height: 1.55; color: #2f2d2a; max-width: 44ch; }

/* ---------- Ablauf: Treppe im Schnitt ---------- */
.process { padding-block: clamp(80px, 9vw, 140px) 0; }
.stair-wrap { margin-top: clamp(48px, 5vw, 72px); }
.stair { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); align-items: end; position: relative; }
.stair::before { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 0; }
.step { --h: 230px; position: relative; min-height: var(--h); padding: 22px 24px 26px; background: var(--tex), var(--c1); border-top: 10px solid var(--c4); box-shadow: inset -2px 0 0 rgba(0,0,0,.14); display: grid; align-content: start; gap: 8px; }
.step:nth-child(1) { --h: 230px; background-position: 0 0; }
.step:nth-child(2) { --h: 300px; background-position: -140px -40px; }
.step:nth-child(3) { --h: 370px; background-position: -280px -80px; }
.step:nth-child(4) { --h: 440px; background-position: -400px -20px; }
.step::after { content: ''; position: absolute; right: -1px; top: -10px; width: 22px; height: 10px; background: var(--c5); } /* Stufenvorderkante */
.step__no { font: 900 clamp(40px, 4vw, 60px)/.9 var(--wide); font-stretch: 125%; color: #6e6a63; text-shadow: -1px -1px 0 rgba(0,0,0,.45), 1px 1px 0 rgba(255,255,255,.55); }
.step h3 { font-size: clamp(20px, 1.8vw, 26px); margin-top: 6px; }
.step p { font-size: 15.5px; line-height: 1.55; color: #2f2d2a; hyphens: auto; }
.stair-wrap { position: relative; }
.stair-wrap::before { content: ''; position: absolute; left: 4%; right: 2%; bottom: calc(440px + 70px); height: 0; }
.stair__cap { margin-top: 14px; padding-bottom: clamp(60px, 6vw, 90px); }
.process + .decke { margin-top: 0; }

/* ---------- Über uns: Fensterlaibung ---------- */
.about { padding-block: clamp(80px, 9vw, 140px); }
.about__grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 24px; align-items: center; }
.reveal { grid-column: 1 / span 5; display: grid; gap: 12px; }
.reveal__hole { position: relative; padding: 28px; background: var(--tex), var(--c2); box-shadow: 20px 26px 0 var(--shadow); }
.reveal__hole::before { content: ''; position: absolute; inset: 28px; z-index: 2; box-shadow: inset 22px 22px 0 rgba(30,28,25,.35); pointer-events: none; }
.reveal__hole img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: 50% 20%; filter: grayscale(.25) contrast(1.03); }
.about__text { grid-column: 7 / span 6; display: grid; gap: 22px; }
.about__text h2 { font-size: clamp(32px, 4vw, 56px); }
.about__body { font-size: clamp(17px, 1.35vw, 19px); line-height: 1.65; color: var(--ink-2); max-width: 54ch; }
.feats { display: grid; grid-template-columns: 1fr 1fr; border-top: 1.5px solid var(--ink); margin-top: 8px; }
.feats li { position: relative; padding: 18px 14px 18px 30px; font-weight: 600; border-bottom: 1.5px solid var(--ink); }
.feats li:nth-child(odd) { border-right: 1.5px solid var(--ink); }
.feats li::before { content: ''; position: absolute; left: 6px; top: 25px; width: 11px; height: 11px; background: var(--ink); }
.feats li:nth-child(4)::before { background: var(--o); outline: 1.5px solid var(--ink); }

/* ---------- Kontakt: Bauschild ---------- */
.contact { position: relative; padding-top: clamp(80px, 9vw, 140px); }
.contact__grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 24px; align-items: start; }
.contact__intro { grid-column: 1 / span 5; display: grid; gap: 22px; align-content: start; }
.contact__intro h2 { font-size: clamp(34px, 4.4vw, 62px); }
.contact__intro .ctas { margin-top: 10px; }
.contact__intro .btn--line { font-size: 14.5px; }
.sign { grid-column: 7 / span 6; position: relative; padding-bottom: 120px; }
.sign__board { position: relative; z-index: 2; background: #fbfbf8; border: 2px solid var(--ink); box-shadow: 16px 18px 0 var(--shadow); }
.sign__band { padding: 18px 24px; background: var(--o); border-bottom: 2px solid var(--ink); font: 700 13px/1.2 var(--sans); letter-spacing: .14em; text-transform: uppercase; }
.sign__band b { display: block; margin-top: 6px; font: 800 clamp(26px, 2.6vw, 38px)/1 var(--wide); font-stretch: 125%; letter-spacing: -.01em; text-transform: none; }
.sign__rows { display: grid; }
.sign__rows > div { display: grid; grid-template-columns: 160px 1fr; gap: 16px; padding: 14px 24px; border-bottom: 1px solid #c9c6bf; }
.sign__rows dt { font: 700 11.5px/1.6 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-2); padding-top: 2px; }
.sign__rows dd { font-weight: 500; font-size: 16.5px; line-height: 1.5; overflow-wrap: anywhere; }
.sign__rows a { text-decoration-thickness: 1.5px; text-underline-offset: 3px; text-decoration-color: var(--o); }
.sign__rows a:hover { color: var(--o-ink); }
.sign__fax { color: var(--ink-2); font-size: 14.5px; }
.sign__foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 24px; font: 700 11.5px/1.3 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-2); }
.sign__foot img { width: 70px; height: auto; aspect-ratio: 1510 / 1300; }
.sign__post { position: absolute; z-index: 1; bottom: 0; top: 40px; width: 18px; background: linear-gradient(90deg, #6b6862, #a29e97 40%, #5a5752); }
.sign__post--l { left: 14%; } .sign__post--r { right: 14%; }
.earth { height: 64px; border-top: 2.5px solid var(--ink); background: repeating-linear-gradient(-45deg, var(--c4) 0 1.5px, transparent 1.5px 9px), var(--paper-2); }

/* ---------- Fuß: Fundament ---------- */
.foot { background: var(--hole) 30px 18px / 220px 20px repeat-x, var(--tex), var(--c5); color: #ecebe6; padding-block: 56px 72px; }
.foot__in { display: grid; grid-template-columns: auto 1fr auto; gap: 28px 48px; align-items: start; }
.foot__k { grid-column: 1 / -1; display: flex; align-items: center; gap: 10px; font: 700 12px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: #cfccc5; padding-bottom: 22px; border-bottom: 1px solid rgba(255,255,255,.25); }
.foot__k svg { width: 16px; height: 10px; }
.foot__logo img { width: 104px; height: auto; aspect-ratio: 1510 / 1300; }
.foot__addr { display: grid; gap: 4px; font-size: 15.5px; color: #dcdad4; }
.foot__brand { font: 800 17px/1.3 var(--wide); font-stretch: 115%; color: #fff; margin-bottom: 4px; }
.foot__geo { margin-top: 8px; font-size: 13px; letter-spacing: .08em; color: #bdb9b2; font-variant-numeric: tabular-nums; }
.foot a { color: #fff; text-decoration-color: var(--o); text-underline-offset: 3px; }
.foot__nav { display: grid; gap: 10px; justify-items: start; font-weight: 600; }
.foot__nav a { text-decoration: none; border-bottom: 2px solid transparent; }
.foot__nav a:hover { border-bottom-color: var(--o); }
.foot__copy { grid-column: 1 / -1; font-size: 13.5px; color: #bdb9b2; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.25); }
.foot :focus-visible { outline-color: #fff; }

/* ---------- Rechtsseiten ---------- */
.legal { padding-block: clamp(56px, 7vw, 110px) clamp(80px, 9vw, 140px); }
.legal__grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 24px; }
.legal__pier { grid-column: 1 / span 3; position: relative; }
.legal__pier-in { position: sticky; top: 110px; display: grid; gap: 18px; }
.legal__col { height: 360px; background: var(--tex), var(--c2); border-bottom: 14px solid var(--c4); box-shadow: 14px 18px 0 var(--shadow); }
.back { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 15px; text-decoration: none; border-bottom: 2px solid var(--o); padding-bottom: 2px; justify-self: start; }
.back:hover { color: var(--o-ink); }
.legal__main { grid-column: 5 / span 8; }
.legal__head { display: grid; gap: 18px; padding-bottom: 32px; margin-bottom: 40px; border-bottom: 2px solid var(--ink); }
.legal__head h1 { font-size: clamp(32px, 4.2vw, 58px); hyphens: auto; overflow-wrap: anywhere; }
.legal-body { max-width: 70ch; font-size: 16.5px; line-height: 1.68; }
.legal-body h2 { font-size: clamp(19px, 1.7vw, 23px); font-stretch: 115%; margin: 48px 0 14px; padding-top: 16px; border-top: 1.5px solid var(--ink); line-height: 1.2; }
.legal-body h2:first-child, .legal-body .legal-note + h2 { margin-top: 0; border-top: 0; padding-top: 0; }
.legal-body p, .legal-body ul { margin: 0 0 14px; }
.legal-body li { position: relative; padding-left: 26px; margin-bottom: 6px; }
.legal-body li::before { content: ''; position: absolute; left: 2px; top: .62em; width: 9px; height: 9px; background: var(--ink); }
.legal-body a { text-decoration-color: var(--o); text-decoration-thickness: 2px; text-underline-offset: 3px; overflow-wrap: anywhere; }
.legal-body a:hover { color: var(--o-ink); }
.legal-body .legal-note { padding: 16px 20px; background: var(--o); border: 2px solid var(--ink); font-weight: 600; box-shadow: 8px 8px 0 var(--ink); margin-bottom: 36px; }
.legal-body .legal-note a { text-decoration-color: var(--ink); }
.legal-body .legal-address { padding: 18px 22px; background: var(--tex), var(--c1); border-left: 10px solid var(--c4); }

/* ---------- Einblenden (nur mit JS und Bewegung) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .js .slab, .js .step, .js .cast, .js .room { transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
  .js .slab:not(.in):nth-child(odd) { opacity: 0; transform: translateX(40px); }
  .js .slab:not(.in):nth-child(even) { opacity: 0; transform: translateX(-40px); }
  .js .step:not(.in) { opacity: 0; transform: translateY(60px); }
  .js .step:nth-child(2) { transition-delay: .08s; } .js .step:nth-child(3) { transition-delay: .16s; } .js .step:nth-child(4) { transition-delay: .24s; }
  .js .ax:not(.ax--end)::after { transform-origin: left; transition: transform .8s ease; }
  .js .axes:not(.in) .ax:not(.ax--end)::after { transform: scaleX(0); }
  .js .ax:nth-child(2)::after { transition-delay: .3s; } .js .ax:nth-child(3)::after { transition-delay: .6s; } .js .ax:nth-child(4)::after { transition-delay: .9s; }
}

/* ---------- Responsiv ---------- */
@media (min-width: 1180px) { .rail { display: block; } }
@media (max-width: 1100px) {
  .schnitt, .stairs { display: none; }
  .hero__wall { background: var(--hole) 64px 58px / 256px 20px repeat-x, var(--tex), var(--c1); }
  .nav__list { margin-left: 0; gap: 0; }
  .nav__list a { padding: 10px 8px; gap: 8px; font-size: 14.5px; }
  .tel span, .tel { font-size: 14px; }
  .hero__head { grid-column: 1 / -1; }
  .hero h1 { max-width: 14em; }
  .ribbon { grid-column: 1 / span 6; }
  .cant { grid-column: 7 / span 6; }
  .hero__wall { width: 82%; }
  .room--1, .room--5 { padding-right: 26px; }
  .plan__grid { grid-template-columns: 1fr 1fr 1fr; grid-template-areas: "a a b" "c d d" "e e f"; }
  .slab:nth-child(n) { margin-left: 0; margin-right: 0; }
}
@media (max-width: 960px) {
  .menu { display: inline-flex; }
  .top__in { min-height: 68px; }
  .logo img { width: 56px; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 0; background: var(--paper); border-bottom: 2px solid var(--ink); box-shadow: 0 18px 0 var(--shadow); padding: 8px var(--pad) 22px; }
  .top.open .nav { display: flex; }
  .nav__list { flex-direction: column; margin: 0; }
  .nav__list li + li { border-top: 1px solid #c9c6bf; }
  .nav__list a { padding: 14px 0; font-size: 18px; }
  .nav__end { justify-content: space-between; padding-top: 16px; border-top: 1.5px solid var(--ink); }
  .tel { font-size: 16px; }
  .hero__grid { min-height: 0; }
  .ribbon, .cant { grid-column: 1 / -1; grid-row: auto; }
  .cant { margin-right: calc(var(--pad) * -1); margin-left: 12%; }
  .hero__wall { width: 100%; }
  .about__grid, .contact__grid { grid-template-columns: 1fr; row-gap: 40px; }
  .reveal, .about__text, .contact__intro, .sign { grid-column: 1 / -1; }
  .reveal { max-width: 520px; margin-top: 0; }
  .feats { grid-template-columns: 1fr; }
  .feats li:nth-child(odd) { border-right: 0; }
  .legal__grid { grid-template-columns: 1fr; }
  .legal__pier, .legal__main { grid-column: 1 / -1; }
  .legal__col { display: none; }
  .legal__pier-in { position: static; margin-bottom: 32px; }
  .stair { grid-template-columns: 1fr 1fr; row-gap: 0; }
  .step:nth-child(1) { --h: 220px; } .step:nth-child(2) { --h: 260px; } .step:nth-child(3) { --h: 220px; } .step:nth-child(4) { --h: 260px; }
}
@media (max-width: 760px) {
  .slabs { grid-template-columns: 56px 1fr; grid-auto-rows: auto; row-gap: 26px; }
  .tower__core { left: 0; transform: none; width: 56px; top: -24px; bottom: -40px; }
  .tower__core span { display: none; }
  .slab:nth-child(n) { grid-column: 1 / 3; grid-row: auto; padding: 22px 20px 26px calc(56px + 20px); margin: 0; }
    .slab:nth-child(n) { margin-right: 0; }
  .slab:nth-child(even) { margin-right: 6%; }
  .cast__list { grid-template-columns: 1fr; }
  .cast__list li { min-height: 0; padding: 26px 24px; }
  .cast__list li + li { box-shadow: inset 0 2px 0 rgba(0,0,0,.16), inset 0 3px 0 rgba(255,255,255,.3); }
  .axes__row { grid-template-columns: 1fr; margin-inline: 0; padding-left: 0; }
  .ax { height: auto; min-height: 76px; padding-left: 74px; }
  .ax::before { left: 29px; top: 58px; bottom: 0; border-left-style: dashed; }
  .ax__b { left: 0; transform: none; }
  .ax__seg { position: relative; inset: auto; height: auto; display: block; padding: 70px 0 18px; font-size: 12px; }
  .ax__seg::before, .ax__seg::after { display: none; }
  .ax:not(.ax--end)::after { left: 25px; right: auto; top: 58px; bottom: 0; width: 9px; height: auto; }
  .ax--car::after { background: repeating-linear-gradient(180deg, var(--o) 0 14px, transparent 14px 22px) !important; width: 8px !important; }
  .ax--end { min-height: 58px; }
  .axes__txt { grid-template-columns: 1fr; }
  .axes__m { margin-left: 0; }
  .plan__sheet { padding: 16px 16px 60px; }
  .plan__grid { --wall: 12px; grid-template-columns: 1fr; grid-template-areas: none; gap: 12px; padding: 12px; }
  .room { grid-area: auto !important; min-height: 0; padding: 22px 20px 26px; }
  .door--t::before { top: -12px; height: 12px; }
  .door--l::before { left: -12px; width: 12px; }
  .stairs, .door--l { display: none; }
  .hero__wall { background: var(--tex), var(--c1); }
  .slab:nth-child(n) { padding-bottom: 44px; background-position: 60px calc(100% - 8px), 0 0, 0 0; }
  .plan__meta { left: 16px; right: 16px; }
  .stair { grid-template-columns: 1fr; }
  .step:nth-child(n) { --h: 0px; min-height: 0; }
  .step:nth-child(2) { margin-left: 18px; } .step:nth-child(3) { margin-left: 36px; } .step:nth-child(4) { margin-left: 54px; }
  .step::after { display: none; }
  .sign__rows > div { grid-template-columns: 1fr; gap: 2px; padding: 12px 18px; }
  .sign__band, .sign__foot { padding-inline: 18px; }
  .sign { padding-bottom: 80px; }
  .foot__in { grid-template-columns: 1fr; }
  .hero { padding-bottom: 64px; }
  .hero__grid { padding-top: 44px; }
  .ribbon__glass { height: 132px; border-width: 7px; }
  .ribbon, .cant { margin-top: 24px; }
  .cant { margin-left: 6%; }
  .decke__axis { display: none; }
}
@media (max-width: 420px) {
  .hero h1 { font-size: 31px; font-stretch: 104%; }
  .kicker { font-size: 12px; letter-spacing: .1em; }
  .btn { padding: 12px 16px; font-size: 14.5px; }
  .sec-head h2, .about__text h2, .contact__intro h2 { font-stretch: 112%; }
}