/* ==========================================================================
   HSK-Vorlage – Stylesheet
   Gestaltung: Wärmebild-Ästhetik · warm (Vorlauf) trifft kalt (Rücklauf)
   ========================================================================== */

/* ---------- Schriften (lokal gehostet, OFL) ---------- */
@font-face {
  font-family: "Instrument Sans";
  src: url("../fonts/instrument-sans-var.woff2") format("woff2");
  font-weight: 400 700;
  font-stretch: 75% 100%;
  font-style: normal;
  font-display: swap;
}

/* ---------- Design-Tokens ---------- */
:root {
  --ink: #0B151E;
  --ink-2: #0F1D29;
  --ink-3: #162839;
  --paper: #F3EFE8;
  --paper-2: #EAE4DA;
  --sand: #E7DFD2;
  --white: #FFFDF9;

  --text: #0B151E;
  --text-2: #4D5963;
  --text-dark: #F3EFE8;
  --text-dark-2: rgba(243, 239, 232, .68);

  --warm: #FF6A2B;
  --warm-ink: #C2410C;
  --amber: #FFB547;
  --magenta: #C2456B;
  --cool: #2E9BEF;
  --cool-ink: #1565A8;
  --air: #3CCFC0;
  --eco: #46C27E;
  --steel: #8FB3D9;

  --line: rgba(11, 21, 30, .1);
  --line-2: rgba(11, 21, 30, .2);
  --line-dark: rgba(243, 239, 232, .12);

  --grad-thermal: linear-gradient(90deg, #2E9BEF 0%, #C2456B 55%, #FF6A2B 100%);

  --radius-xl: 40px;
  --radius-lg: 28px;
  --radius: 18px;

  --container: 1360px;
  --gutter: clamp(20px, 4.2vw, 64px);
  --section: clamp(80px, 8vw, 128px);
  --nav-h: 84px;

  --ease: cubic-bezier(.16, 1, .3, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);

  --font-sans: "Instrument Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

/* ---------- Basis ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  overflow-x: hidden; overflow-x: clip;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  background: var(--ink);
}
html.menu-open { overflow: hidden; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: clamp(16px, .55vw + 10px, 18px);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3, p { overflow-wrap: break-word; }
address { font-style: normal; }

:focus-visible { outline: 2px solid var(--focus, var(--warm-ink)); outline-offset: 3px; border-radius: 6px; }
.sheet--dark, .hero, .menu, .svc__inner, .hours, .page-hero, .e404, .nav:not(.is-scrolled) { --focus: var(--warm); }
::selection { background: var(--warm); color: var(--ink); }

.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.icon {
  width: 1.15em; height: 1.15em; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round;
}

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 1000;
  padding: 10px 18px; border-radius: 999px;
  background: var(--paper); color: var(--ink); font-weight: 600;
  transform: translateY(-160%); transition: transform .3s var(--ease);
}
.skip-link:focus { transform: none; }

/* ---------- Typografie ---------- */
.h1 {
  margin: 0;
  font-size: clamp(36px, 5.6vw, 88px);
  line-height: .98;
  letter-spacing: -.04em;
  font-weight: 600;
  font-stretch: 86%;
  text-wrap: balance;
}

.lead {
  margin: 0;
  max-width: 48ch;
  font-size: clamp(18px, 1.3vw, 21px);
  line-height: 1.55;
  color: var(--text-2);
  text-wrap: pretty;
}
.sheet--dark .lead { color: var(--text-dark-2); }

.label {
  margin: 0 0 18px;
  font-size: 15px; font-weight: 600;
  color: var(--warm-ink);
}
.sheet--dark .label { color: var(--amber); }
.sheet--sand .label { color: #9A3412; }

/* ---------- Buttons & Links ---------- */
.btn {
  --btn-bg: var(--ink); --btn-fg: var(--paper); --btn-hover: #1E3346;
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  height: 54px; padding: 0 24px;
  border-radius: 999px; border: 1px solid transparent;
  background: var(--btn-bg); color: var(--btn-fg);
  font-size: 16px; font-weight: 600; letter-spacing: -.005em; white-space: nowrap;
  transition: background-color .25s, border-color .25s, color .25s;
  -webkit-tap-highlight-color: transparent;
}
.btn:hover { background: var(--btn-hover); }
.btn:has(.btn__icon) { padding-right: 7px; }
.btn__icon {
  display: grid; place-items: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--warm); color: var(--ink);
}
.btn__icon .icon { width: 18px; height: 18px; transition: transform .3s var(--ease); }
.btn:hover .btn__icon .icon { transform: translateX(2px); }

.btn--light { --btn-bg: var(--paper); --btn-fg: var(--ink); --btn-hover: #FFFFFF; }
.btn--dark { --btn-bg: var(--ink); --btn-fg: var(--paper); }
.btn--warm { --btn-bg: var(--warm); --btn-fg: var(--ink); --btn-hover: #FF8250; }
.btn--ghost {
  --btn-bg: transparent; --btn-fg: var(--ink); --btn-hover: rgba(11, 21, 30, .06);
  border-color: var(--line-2);
}
.btn--ghost .icon { width: 18px; height: 18px; }
.btn--ghost-light { --btn-fg: var(--paper); --btn-hover: rgba(243, 239, 232, .1); border-color: rgba(243, 239, 232, .32); }
.btn--sm { height: 44px; padding: 0 20px; font-size: 15px; }

.link-arrow {
  position: relative; display: inline-flex; align-items: center; gap: 10px;
  padding-bottom: 5px; font-weight: 600;
}
.link-arrow::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1.5px;
  background: currentColor; opacity: .3;
}
.link-arrow::before {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1.5px;
  background: currentColor; transform: scaleX(0); transform-origin: right;
  transition: transform .7s var(--ease);
}
.link-arrow:hover::before { transform: scaleX(1); transform-origin: left; }
.link-arrow .icon { width: 18px; height: 18px; transition: transform .6s var(--ease); }
.link-arrow:hover .icon { transform: translateX(5px); }

/* ---------- Status (Öffnungszeiten live) ---------- */
.status {
  display: inline-flex; align-items: center; gap: 10px;
  margin: 0; padding: 8px 15px 8px 13px;
  border-radius: 999px; background: rgba(11, 21, 30, .06);
  font-size: 14px; font-weight: 500; line-height: 1.3;
}
.status--dark, .hours .status { background: rgba(243, 239, 232, .09); color: var(--paper); }
.status__dot { position: relative; flex: none; width: 8px; height: 8px; border-radius: 50%; background: #9AA5AE; }
.status.is-open .status__dot { background: #3DDC84; }
.status.is-break .status__dot { background: var(--amber); }
.status.is-closed .status__dot { background: #FF6B6B; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  padding: 12px var(--gutter) 0;
  pointer-events: none;
  transition: transform .7s var(--ease);
}
.nav.is-hidden { transform: translateY(-160%); }
.nav.is-hidden .nav__bar { box-shadow: none; }
.nav__bar {
  pointer-events: auto;
  max-width: calc(var(--container) + 32px); margin-inline: auto;
  height: 64px; padding: 0 8px 0 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  border-radius: 999px; border: 1px solid transparent;
  color: var(--paper);
  transition: background-color .5s var(--ease), border-color .5s, color .5s, box-shadow .5s;
}
.nav.is-scrolled .nav__bar {
  background: rgba(246, 243, 237, .96);
  color: var(--ink);
  border-color: rgba(11, 21, 30, .08);
  box-shadow: 0 12px 40px -16px rgba(11, 21, 30, .28);
  -webkit-backdrop-filter: blur(18px) saturate(1.5);
  backdrop-filter: blur(18px) saturate(1.5);
}
html.menu-open .nav { background: var(--ink); }
.menu-open .nav.is-scrolled .nav__bar,
.menu-open .nav__bar {
  background: transparent; color: var(--paper); border-color: transparent; box-shadow: none;
  -webkit-backdrop-filter: none; backdrop-filter: none;
}

.logo { display: inline-flex; align-items: center; gap: 11px; }
.logo__mark { width: 34px; height: 34px; }
.logo__text { display: flex; flex-direction: column; line-height: 1; }
.logo__word { font-size: 19px; font-weight: 700; font-stretch: 90%; letter-spacing: .02em; text-transform: uppercase; }
.logo__sub { margin-top: 4px; font-size: 10.5px; font-weight: 500; letter-spacing: .26em; text-transform: uppercase; opacity: .62; }

.nav__links { display: flex; gap: 2px; }
.nav__links a {
  position: relative; padding: 9px 14px; border-radius: 999px;
  font-size: 15px; font-weight: 500;
  transition: background-color .3s;
}
.nav__links a:hover { background: rgba(243, 239, 232, .1); }
.nav.is-scrolled .nav__links a:hover { background: rgba(11, 21, 30, .06); }
.nav__links a.is-active::after {
  content: ""; position: absolute; left: 50%; bottom: 2px;
  width: 5px; height: 5px; margin-left: -2.5px; border-radius: 50%; background: var(--warm);
}
.nav__actions { display: flex; align-items: center; gap: 8px; }
.nav__phone {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 12px;
  font-size: 15px; font-weight: 600; font-variant-numeric: tabular-nums;
}
.nav__phone .icon { width: 17px; height: 17px; }
.nav__toggle {
  display: none; place-items: center;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--paper); color: var(--ink);
}
.nav.is-scrolled .nav__toggle { background: var(--ink); color: var(--paper); }
.menu-open .nav__toggle,
.menu-open .nav.is-scrolled .nav__toggle { background: var(--paper); color: var(--ink); }
.nav__toggle-lines { position: relative; display: block; width: 18px; height: 10px; }
.nav__toggle-lines i {
  position: absolute; left: 0; right: 0; height: 2px; border-radius: 2px; background: currentColor;
  transition: transform .5s var(--ease), top .5s var(--ease);
}
.nav__toggle-lines i:first-child { top: 0; }
.nav__toggle-lines i:last-child { top: 8px; }
.nav__toggle[aria-expanded="true"] .nav__toggle-lines i:first-child { top: 4px; transform: rotate(45deg); }
.nav__toggle[aria-expanded="true"] .nav__toggle-lines i:last-child { top: 4px; transform: rotate(-45deg); }

/* Mobiles Menü */
.menu {
  position: fixed; inset: 0; z-index: 90;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: calc(var(--nav-h) + 28px) var(--gutter) max(28px, env(safe-area-inset-bottom));
  overflow-x: hidden; overflow-y: auto; overscroll-behavior: contain;
  background: var(--ink); color: var(--paper);
  opacity: 0; visibility: hidden;
  transition: opacity .3s, visibility 0s linear .3s;
}
.menu.is-open {
  opacity: 1; visibility: visible;
  transition: opacity .3s, visibility 0s;
}
.menu__links { position: relative; display: flex; flex-direction: column; }
.menu__links a {
  padding: 8px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: clamp(28px, 7vw, 48px); font-weight: 600; font-stretch: 88%;
  letter-spacing: -.03em; line-height: 1.15;
}
.menu__foot { position: relative; display: grid; justify-items: start; gap: 14px; margin-top: 40px; font-size: 17px; }
.menu__foot a { display: inline-flex; align-items: center; gap: 10px; }

/* ---------- Sheets (abgerundete Sektionen) ---------- */
.sheet {
  position: relative; z-index: 2;
  margin-top: calc(var(--radius-xl) * -1);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  background: var(--paper);
}
.sheet--dark { background: var(--ink); color: var(--paper); }
.sheet--sand { background: var(--sand); }

.section-head { max-width: 980px; margin-bottom: clamp(48px, 6vw, 92px); }
.section-head .h1 { margin-bottom: 28px; }
.section-head--split {
  display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 64px); align-items: end; max-width: none;
}
.section-head--split .h1 { margin-bottom: 0; }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center .lead { margin-inline: auto; text-wrap: balance; }

/* ==========================================================================
   HERO – Wärmebild
   ========================================================================== */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: calc(var(--nav-h) + 48px) 0 calc(clamp(36px, 4vw, 60px) + var(--radius-xl));
  color: var(--paper);
  background:
    radial-gradient(42% 52% at 78% 28%, rgba(255, 106, 43, .55), rgba(138, 35, 80, .35) 45%, transparent 72%),
    radial-gradient(40% 50% at 18% 85%, rgba(46, 155, 239, .22), transparent 70%),
    radial-gradient(60% 60% at 50% 50%, #142C4A, #07111A 75%);
}
.hero__canvas { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; }
.hero__shade {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(5, 11, 18, .62) 0%, rgba(5, 11, 18, .28) 42%, rgba(5, 11, 18, 0) 68%),
    linear-gradient(0deg, rgba(5, 11, 18, .7) 0%, rgba(5, 11, 18, 0) 38%);
}

.hero__inner {
  position: relative;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 400px);
  gap: 24px clamp(24px, 4vw, 64px); align-items: end;
}

.hero__title {
  margin: 0;
  font-size: clamp(64px, 12.4vw, 204px);
  line-height: .84;
  font-weight: 600;
  font-stretch: 78%;
  letter-spacing: -.052em;
}
.hero__line { display: block; overflow: hidden; padding: .03em 0 .07em; margin-bottom: -.06em; }
.hero__word { display: inline-flex; align-items: baseline; }
.hero__dot {
  display: inline-block; flex: none;
  width: .15em; height: .15em; margin-left: .045em;
  border-radius: 50%;
}
.hero__dot--warm { background: var(--warm); }
.hero__dot--cool { background: var(--cool); }
.hero__dot--air { background: var(--air); }

.hero__aside { padding-bottom: .4em; }
.hero__lead { margin: 0 0 26px; font-size: clamp(18px, 1.35vw, 21px); line-height: 1.5; color: rgba(243, 239, 232, .92); text-shadow: 0 1px 2px rgba(5, 11, 18, .35), 0 2px 22px rgba(5, 11, 18, .55); }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 10px; }

.hero__bottom {
  position: relative;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  margin-top: clamp(36px, 6vh, 64px); padding-top: 20px;
  border-top: 1px solid rgba(243, 239, 232, .14);
}
.hero__place { margin: 0; font-size: 14px; color: rgba(243, 239, 232, .7); }

/* Dezenter Einstieg (nur mit JS) */
.js .hero__word { animation: hero-word 1.1s var(--ease) both; }
.js .hero__line:nth-child(3) .hero__word { animation-delay: .08s; }
.js .hero__line:nth-child(4) .hero__word { animation-delay: .16s; }
.js [data-hero-fade] { animation: fade-up 1s var(--ease) .3s both; }

/* ==========================================================================
   LEISTUNGEN – gestapelte Karten
   ========================================================================== */
.services { padding: var(--section) 0 calc(var(--section) * .55 + var(--radius-xl)); }
.stack { position: relative; display: grid; gap: 28px; }
.svc { position: relative; }
.svc--eco { --c: var(--eco); }
.svc--warm { --c: var(--warm); }
.svc--cool { --c: var(--cool); }
.svc--air { --c: var(--air); }
.svc--steel { --c: var(--steel); }

.svc__inner {
  --shade: 0;
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(20px, 3vw, 44px);
  min-height: min(620px, calc(100vh - var(--nav-h) - 72px));
  padding: clamp(18px, 2.4vw, 36px);
  border-radius: var(--radius-xl);
  background: var(--ink-2);
  color: var(--paper);
  border: 1px solid rgba(255, 255, 255, .06);
  box-shadow: 0 40px 90px -50px rgba(11, 21, 30, .7);
  transform-origin: 50% 0;
}
.svc__inner::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: #05090D; opacity: var(--shade); pointer-events: none;
}
.svc__body { display: flex; flex-direction: column; justify-content: center; padding: clamp(6px, 1.4vw, 18px); }
.svc__title {
  display: flex; align-items: center; gap: .32em;
  margin: 0 0 16px;
  font-size: clamp(30px, 3.3vw, 52px); line-height: 1.0;
  letter-spacing: -.04em; font-weight: 600; font-stretch: 86%;
  text-wrap: balance;
}
.svc__title .icon { width: .62em; height: .62em; stroke-width: 2; color: var(--c); }
.svc__text { margin: 0 0 24px; max-width: 44ch; color: var(--text-dark-2); }
.svc__list {
  list-style: none; margin: 0 0 30px; padding: 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 11px 22px;
  font-size: 15.5px; line-height: 1.4;
}
.svc__list li { display: flex; align-items: flex-start; gap: 10px; }
.svc__list .icon { width: 17px; height: 17px; margin-top: .1em; color: var(--c); stroke-width: 2.2; }
.svc__foot {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px;
  padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .1);
}
.svc__phone {
  display: inline-flex; align-items: center; gap: 8px; min-height: 44px;
  font-size: 15px; font-weight: 600; font-variant-numeric: tabular-nums;
  color: color-mix(in srgb, var(--c) 55%, #fff);
}
.svc__phone .icon { width: 16px; height: 16px; }

/* Karussell-Steuerung (nur mobil sichtbar) */
.stack-nav { display: none; }

.svc__art {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: 300px;
  border-radius: calc(var(--radius-xl) - 12px);
  background:
    radial-gradient(110% 90% at 70% 15%, color-mix(in srgb, var(--c) 20%, transparent), transparent 62%),
    #08121A;
  border: 1px solid rgba(255, 255, 255, .05);
}
.art { position: absolute; inset: 0; width: 100%; height: 100%; padding: 4%; }

/* Farbklassen der Leitungen (Energie-Haus) */
.c-warm { stroke: var(--warm); }
.c-cool { stroke: var(--cool); }
.c-air { stroke: var(--air); }
.c-amber { stroke: var(--amber); }
.c-amber-dim { stroke: #C98A2E; }
.c-hot { stroke: #FF4D3D; }
.c-exhaust { stroke: #B48CDE; }
.c-air-dim { stroke: #2B9E93; }
.c-exhaust-dim { stroke: #8A6AAE; }

/* ==========================================================================
   ENERGIE-HAUS
   ========================================================================== */
.house { padding: var(--section) 0 calc(var(--section) + var(--radius-xl)); }
.house .h1 { color: var(--paper); }
.house__grid {
  display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(300px, 1fr);
  gap: clamp(24px, 3vw, 48px); align-items: center;
}
.house__stage { position: relative; aspect-ratio: 900 / 640; }
.house__svg { width: 100%; height: 100%; overflow: visible; }

.h-cellar { fill: var(--ink); }
.h-ground { fill: none; stroke: rgba(255, 255, 255, .32); stroke-width: 1.5; }
.h-roof { fill: none; stroke: rgba(255, 255, 255, .62); stroke-width: 4; stroke-linejoin: round; stroke-linecap: round; }
.h-wall { fill: none; stroke: rgba(255, 255, 255, .5); stroke-width: 4; }
.h-wall--in { stroke-width: 2.5; stroke: rgba(255, 255, 255, .28); }
.h-slab { fill: none; stroke: rgba(255, 255, 255, .3); stroke-width: 8; }
.h-thin { fill: none; stroke: rgba(255, 255, 255, .16); stroke-width: 1.5; }
.h-furn { fill: none; stroke: rgba(255, 255, 255, .22); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.h-labels text { font-size: 13px; fill: rgba(255, 255, 255, .4); }

.h-unit { fill: #13222F; stroke: rgba(255, 255, 255, .78); stroke-width: 2; }
.h-unit-line { fill: none; stroke: rgba(255, 255, 255, .55); stroke-width: 1.5; stroke-linecap: round; }
.h-fan path { fill: rgba(255, 255, 255, .78); }
.h-airwaves path { fill: none; stroke: var(--eco); stroke-width: 2; stroke-linecap: round; stroke-dasharray: 3 9; --dash: -12; }
.h-pipe { fill: none; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; opacity: .6; }
.h-flow { fill: none; stroke: rgba(255, 255, 255, .92) !important; stroke-width: 1.8; stroke-linecap: round; stroke-dasharray: 3 12; --dash: -15; }
.h-panel { fill: url(#g-panel); stroke: rgba(255, 255, 255, .85); stroke-width: 1.5; stroke-linejoin: round; }
.h-panel-line { fill: none; stroke: rgba(255, 255, 255, .4); stroke-width: 1; }
.h-ray { fill: none; stroke: #FFD27A; stroke-width: 2.5; stroke-linecap: round; }
.h-sun-core { fill: #FFC15E; }
.h-tank { fill: url(#g-tank); stroke: rgba(255, 255, 255, .8); stroke-width: 2; }
.h-tank-glow { fill: none; stroke: rgba(255, 255, 255, .22); stroke-width: 1.2; }
.h-loops path { fill: none; stroke: var(--warm); stroke-width: 6; stroke-linecap: round; }
.h-meter { fill: #13222F; stroke: rgba(255, 255, 255, .7); stroke-width: 1.5; }
.h-fixture { fill: none; stroke: rgba(255, 255, 255, .62); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.h-drops path { fill: none; stroke: #8ED9FA; stroke-width: 2; stroke-linecap: round; }
.h-duct { fill: none; stroke-width: 9; stroke-linecap: round; stroke-linejoin: round; opacity: .32; }
.h-duct-flow { fill: none; stroke-width: 2.2; stroke-linecap: round; stroke-dasharray: 6 10; --dash: -16; }
.h-vent { fill: none; stroke: rgba(255, 255, 255, .72); stroke-width: 3; stroke-linecap: round; }

/* Nur der ausgewählte Kreislauf fließt – und nur, solange das Haus sichtbar ist */
.house__grid.is-inview .sys.is-on .h-flow,
.house__grid.is-inview .sys.is-on .h-duct-flow,
.house__grid.is-inview .sys.is-on .h-airwaves path { animation: dash 2.2s linear infinite; }
.sys { transition: opacity .7s var(--ease); }
.js .house__grid .sys { opacity: .26; }
.js .house__grid .sys.is-on { opacity: 1; }
.house__grid .sys.is-on .h-pipe { opacity: .95; }

.hotspot {
  position: absolute; left: var(--x); top: var(--y); z-index: 2;
  width: 34px; height: 34px; margin: -17px 0 0 -17px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(11, 21, 30, .6);
  border: 1.5px solid rgba(255, 255, 255, .8);
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  transition: transform .45s var(--ease), background-color .35s, border-color .35s;
}
.hotspot::before {
  content: ""; width: 12px; height: 12px;
  background:
    linear-gradient(#fff, #fff) center / 100% 2px no-repeat,
    linear-gradient(#fff, #fff) center / 2px 100% no-repeat;
  transition: transform .5s var(--ease);
}
.hotspot:hover { transform: scale(1.12); }
.hotspot.is-active { background: var(--warm); border-color: var(--warm); }
.hotspot.is-active::before {
  transform: rotate(45deg);
  background:
    linear-gradient(var(--ink), var(--ink)) center / 100% 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) center / 2px 100% no-repeat;
}
.hotspot__label {
  position: absolute; left: calc(100% + 10px); top: 50%;
  padding: 6px 12px; border-radius: 999px;
  background: var(--paper); color: var(--ink);
  font-size: 13px; font-weight: 600; white-space: nowrap;
  opacity: 0; transform: translate(-6px, -50%); pointer-events: none;
  transition: opacity .3s, transform .45s var(--ease);
}
.hotspot[data-part="wp"] .hotspot__label { left: auto; right: calc(100% + 10px); transform: translate(6px, -50%); }
.hotspot:hover .hotspot__label,
.hotspot:focus-visible .hotspot__label,
.hotspot.is-active .hotspot__label { opacity: 1; transform: translate(0, -50%); }

.house__panel {
  position: relative; overflow: hidden;
  padding: clamp(20px, 2.2vw, 30px);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .035);
  border: 1px solid rgba(255, 255, 255, .08);
}
.house__tabs { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 26px; }
.house__tabs button {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 13px; border-radius: 14px;
  background: rgba(255, 255, 255, .035); border: 1px solid rgba(255, 255, 255, .07);
  color: var(--text-dark-2); font-size: 14px; font-weight: 500; text-align: left; line-height: 1.25;
  transition: background-color .35s, color .35s, border-color .35s;
}
.house__tabs button:hover { color: var(--paper); border-color: rgba(255, 255, 255, .2); }
.house__tabs button[aria-selected="true"] { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.house__tabs .icon { width: 18px; height: 18px; }
.part[hidden], .js .part:not(.is-active) { display: none; }
.no-js .nav__toggle, .no-js .house__tabs { display: none; }
.no-js .part + .part { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line-dark); }
.part.is-active { animation: part-in .7s var(--ease) both; }
.part__title { margin: 0 0 12px; font-size: clamp(28px, 2.5vw, 40px); line-height: 1.05; letter-spacing: -.035em; font-weight: 600; font-stretch: 88%; }
.part p { margin: 0 0 18px; color: var(--text-dark-2); }
.part__points { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 15.5px; }
.part__points li { display: flex; align-items: flex-start; gap: 12px; }
.part__points li::before { content: ""; flex: none; width: 6px; height: 6px; margin-top: .62em; border-radius: 50%; background: var(--warm); }

/* ==========================================================================
   HEIZUNGS-FINDER
   ========================================================================== */
.finder { padding: var(--section) 0 calc(var(--section) + var(--radius-xl)); }
.finder__grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.25fr); gap: clamp(32px, 5vw, 88px); align-items: start; }
.finder__head { position: sticky; top: calc(var(--nav-h) + 48px); margin-bottom: 0; }
.finder__app {
  position: relative;
  display: flex; flex-direction: column;
  min-height: 540px;
  padding: clamp(22px, 3vw, 44px);
  border-radius: var(--radius-xl);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 50px 90px -60px rgba(11, 21, 30, .45);
}
.finder__top { display: flex; align-items: center; gap: 18px; margin-bottom: 30px; }
.finder__count { font-size: 14px; font-weight: 600; color: var(--text-2); white-space: nowrap; }
.finder__progress { flex: 1; height: 4px; border-radius: 4px; background: var(--paper-2); overflow: hidden; }
.finder__progress i { display: block; width: 100%; height: 100%; background: var(--warm); transform: scaleX(.25); transform-origin: left; transition: transform .9s var(--ease); }
.finder__form { position: relative; }
.finder__step { min-width: 0; margin: 0; padding: 0; border: 0; }
.js .finder__step.is-active, .js .finder__result.is-active { animation: part-in .45s var(--ease) both; }
.finder__q {
  margin: 0 0 26px; padding: 0;
  font-size: clamp(26px, 2.3vw, 38px); line-height: 1.1; letter-spacing: -.032em; font-weight: 600; font-stretch: 90%;
  text-wrap: balance;
}
.finder__opts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.finder__opts--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.opt { position: relative; display: block; cursor: pointer; }
.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt__box {
  display: flex; flex-direction: column; gap: 6px; height: 100%;
  padding: 22px 20px;
  border-radius: 20px; border: 1.5px solid var(--line);
  background: var(--paper);
  transition: border-color .3s, background-color .3s, box-shadow .35s, transform .5s var(--ease);
}
.opt__box .icon { width: 34px; height: 34px; margin-bottom: 14px; stroke-width: 1.4; }
.opt__box strong { font-size: 17px; font-weight: 600; line-height: 1.25; }
.opt__box small { font-size: 14px; line-height: 1.4; color: var(--text-2); }
.opt:hover .opt__box { border-color: var(--ink); transform: translateY(-3px); }
.opt input:focus-visible + .opt__box { outline: 2px solid var(--focus, var(--warm-ink)); outline-offset: 3px; }
.opt input:checked + .opt__box { border-color: var(--warm); background: #FFF3EA; box-shadow: 0 0 0 4px rgba(255, 106, 43, .14); }
.opt input:checked + .opt__box .icon { color: var(--warm-ink); }
.finder__nav { margin-top: auto; padding-top: 28px; }
.finder__back { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; font-size: 15px; font-weight: 500; color: var(--text-2); transition: color .3s; }
.finder__back:hover { color: var(--ink); }
.finder__back:disabled { opacity: .3; cursor: default; }
.finder__back .icon { width: 18px; height: 18px; }
.finder__app.is-done .finder__nav { display: none; }

.finder__result:focus { outline: none; }
.finder__result-kicker { margin: 0 0 6px; font-size: 15px; font-weight: 600; color: var(--warm-ink); }
.finder__result-title { margin: 0 0 14px; font-size: clamp(32px, 3.2vw, 50px); line-height: 1; letter-spacing: -.04em; font-weight: 600; font-stretch: 86%; }
.finder__result-text { margin: 0; color: var(--text-2); max-width: 56ch; }
.finder__bars { list-style: none; margin: 16px 0 0; padding: 0; color: var(--text-2); }
.finder__bars:empty { display: none; }
.finder__addons { list-style: none; margin: 22px 0 28px; padding: 0; display: grid; gap: 8px; font-size: 15px; font-weight: 500; }
.finder__addons li { display: flex; align-items: center; gap: 10px; }
.finder__addons .icon { width: 18px; height: 18px; color: var(--warm-ink); }
.finder__actions { display: flex; flex-wrap: wrap; gap: 12px; }
.finder__disclaimer { margin: 20px 0 0; font-size: 13px; color: var(--text-2); }

/* ==========================================================================
   ÜBER UNS
   ========================================================================== */
.about { padding: var(--section) 0 calc(var(--section) + var(--radius-xl)); }
.history { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-2); }
.history li {
  display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 24px; align-items: baseline;
  padding: 18px 0; border-bottom: 1px solid var(--line);
}
.history__year { font-size: 15px; font-weight: 600; font-variant-numeric: tabular-nums; color: #9A3412; }
.history p { margin: 0; font-size: clamp(17px, 1.3vw, 20px); line-height: 1.4; }

/* ==========================================================================
   KARRIERE
   ========================================================================== */
.career { overflow: hidden; padding: var(--section) 0 calc(var(--section) + var(--radius-xl)); }
.career__grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.career .h1 { margin-bottom: 24px; }
.jobs { display: grid; gap: 14px; }
.job {
  padding: clamp(22px, 2.6vw, 32px);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .1);
  transition: border-color .3s;
}
.job:hover { border-color: rgba(255, 255, 255, .22); }
.job__tag { display: flex; align-items: center; gap: 10px; margin: 0 0 14px; font-size: 14px; font-weight: 500; color: var(--amber); }
.job__tag .icon { width: 18px; height: 18px; }
.job__title { margin: 0 0 10px; font-size: clamp(21px, 1.8vw, 27px); line-height: 1.15; letter-spacing: -.025em; font-weight: 600; font-stretch: 92%; }
.job p { margin: 0 0 18px; color: var(--text-dark-2); }

/* ==========================================================================
   KONTAKT
   ========================================================================== */
.contact { padding: var(--section) 0 calc(var(--section) + var(--radius-xl)); }
.contact__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.contact .h1 { margin-bottom: 28px; }
.cards { list-style: none; margin: 32px 0 14px; padding: 0; display: grid; gap: 10px; }
.ccard {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 18px 14px 14px; border-radius: 20px;
  background: var(--white); border: 1px solid var(--line);
  transition: transform .6s var(--ease), border-color .3s, box-shadow .4s;
}
a.ccard:hover { border-color: var(--line-2); box-shadow: 0 24px 50px -36px rgba(11, 21, 30, .45); }
.ccard__icon { flex: none; display: grid; place-items: center; width: 46px; height: 46px; border-radius: 14px; background: var(--paper-2); }
.ccard__icon .icon { width: 20px; height: 20px; }
.ccard__body { display: flex; flex-direction: column; min-width: 0; line-height: 1.3; }
.ccard__body small { font-size: 13px; color: var(--text-2); }
.ccard__body strong { font-size: 17px; font-weight: 600; overflow-wrap: anywhere; }
.ccard__go { width: 18px; height: 18px; margin-left: auto; opacity: .4; transition: transform .5s var(--ease), opacity .3s; }
a.ccard:hover .ccard__go { opacity: 1; transform: translate(2px, -2px); }

.hours { padding: 22px; border-radius: 22px; background: var(--ink); color: var(--paper); }
.hours__head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 12px; }
.hours__title { display: inline-flex; align-items: center; gap: 10px; margin: 0; font-size: 18px; font-weight: 600; }
.hours__list { margin: 0; }
.hours__list div {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 11px 0; border-top: 1px solid rgba(243, 239, 232, .1);
  font-size: 15px;
}
.hours__list dt { color: var(--text-dark-2); white-space: nowrap; }
.hours__list dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.hours__list dd span { color: var(--text-dark-2); }
.hours__list .is-today dt, .hours__list .is-today dd { color: var(--paper); font-weight: 600; }
.hours__list .is-today dt::after {
  content: "Heute"; margin-left: 10px; padding: 2px 8px; border-radius: 999px;
  background: var(--warm); color: var(--ink); font-size: 11px; font-weight: 600; vertical-align: 1px;
}

.form {
  padding: clamp(22px, 3.2vw, 46px);
  border-radius: var(--radius-xl);
  background: var(--white); border: 1px solid var(--line);
  box-shadow: 0 50px 90px -60px rgba(11, 21, 30, .45);
}
.form__topics { margin: 0 0 28px; padding: 0; border: 0; min-width: 0; }
.form__legend { margin-bottom: 14px; padding: 0; font-size: 15px; font-weight: 600; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span {
  display: inline-flex; padding: 9px 16px; border-radius: 999px;
  border: 1px solid var(--line-2); font-size: 14px; font-weight: 500;
  cursor: pointer; transition: background-color .3s, color .3s, border-color .3s;
}
.chip:hover span { border-color: var(--ink); }
.chip input:checked + span { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.chip input:focus-visible + span { outline: 2px solid var(--focus, var(--warm-ink)); outline-offset: 2px; }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 18px; }
.field { position: relative; margin-bottom: 20px; }
.field label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 600; }
.field label small { font-size: 13px; font-weight: 400; color: var(--text-2); }
.field input, .field textarea {
  width: 100%; padding: 14px 16px;
  font: inherit; font-size: 17px; color: var(--ink);
  background: var(--paper); border: 1.5px solid transparent; border-radius: 14px;
  transition: border-color .3s, background-color .3s, box-shadow .3s;
}
.field textarea { min-height: 140px; resize: vertical; line-height: 1.5; }
.field input:hover, .field textarea:hover { border-color: var(--line-2); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--ink); background: #fff; box-shadow: 0 0 0 4px rgba(255, 106, 43, .16); }
.field__error { display: none; margin: 8px 0 0; font-size: 13px; color: #B42318; }
.field.is-invalid input, .field.is-invalid textarea { border-color: #D93C3C; background: #FFF6F5; }
.field.is-invalid .field__error { display: block; }
.field--hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field--check { margin-top: 6px; }
.check, .field .check { display: flex; align-items: flex-start; gap: 12px; margin: 0; cursor: pointer; font-size: 14px; font-weight: 400; line-height: 1.5; color: var(--text-2); }
.check input { position: absolute; opacity: 0; pointer-events: none; }
.check__box {
  flex: none; display: grid; place-items: center;
  width: 24px; height: 24px; margin-top: 1px;
  border-radius: 7px; border: 1.5px solid var(--line-2); background: var(--paper);
  transition: background-color .25s, border-color .25s;
}
.check__box .icon { width: 15px; height: 15px; stroke-width: 2.6; color: var(--paper); opacity: 0; transform: scale(.4); transition: opacity .25s, transform .4s var(--ease); }
.check input:checked + .check__box { background: var(--ink); border-color: var(--ink); }
.check input:checked + .check__box .icon { opacity: 1; transform: none; }
.check input:focus-visible + .check__box { outline: 2px solid var(--focus, var(--warm-ink)); outline-offset: 2px; }
.check a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.field--check.is-invalid .check__box { border-color: #D93C3C; }
.form__submit { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 10px; }
.form__hint { margin: 0; font-size: 13px; color: var(--text-2); }
.form__status:empty { display: none; }
.form__status { margin-top: 18px; padding: 15px 18px; border-radius: 14px; font-size: 15px; line-height: 1.5; }
.form__status.is-success { background: #E6F6EC; color: #14532D; }
.form__status.is-info { background: #FFF2E8; color: #7C2D12; }
.form__status.is-error { background: #FDECEC; color: #7F1D1D; }
.form.is-busy button[type="submit"] { opacity: .6; pointer-events: none; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer { overflow: hidden; padding: clamp(56px, 7vw, 96px) 0 26px; }
.footer__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; padding: 0 0 clamp(32px, 4vw, 48px); }
.footer__h { margin: 0 0 14px; font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--text-dark-2); }
.footer__col p, .footer__col address { margin: 0; line-height: 1.75; }
.footer__col ul { list-style: none; margin: 0; padding: 0; line-height: 1.9; }
.footer a { transition: color .3s; }
.footer__col a:hover, .footer__bottom a:hover { color: var(--amber); }
.footer__bottom {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px 24px;
  padding-top: 24px; border-top: 1px solid var(--line-dark);
  font-size: 14px; color: var(--text-dark-2);
}
.footer__bottom p { margin: 0; }
.footer__bottom ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer__top { display: inline-flex; align-items: center; gap: 6px; }
.footer__top .icon { width: 16px; height: 16px; }

/* ==========================================================================
   Unterseiten (Impressum / Datenschutz / 404)
   ========================================================================== */
.page-hero {
  position: relative; overflow: hidden; isolation: isolate;
  padding: calc(var(--nav-h) + clamp(64px, 9vw, 120px)) 0 calc(clamp(64px, 7vw, 96px) + var(--radius-xl));
  background: var(--ink); color: var(--paper);
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(40% 70% at 85% 20%, rgba(255, 106, 43, .45), rgba(138, 35, 80, .2) 50%, transparent 75%),
    radial-gradient(35% 60% at 10% 100%, rgba(46, 155, 239, .25), transparent 70%);
}
.page-hero .h1 { max-width: 14ch; }
.page-hero .label { color: var(--text-dark-2); }
.page-hero .label a { text-decoration: underline; text-underline-offset: 3px; }
.legal { padding: clamp(64px, 8vw, 112px) 0 calc(var(--section) + var(--radius-xl)); }
.legal__grid { display: grid; grid-template-columns: minmax(0, 240px) minmax(0, 760px); gap: clamp(32px, 6vw, 96px); }
.legal__toc { position: sticky; top: calc(var(--nav-h) + 32px); align-self: start; display: grid; gap: 4px; font-size: 14px; }
.legal__toc a { padding: 6px 0; color: var(--text-2); transition: color .3s; }
.legal__toc a:hover { color: var(--ink); }
.legal__body h2 { margin: 56px 0 16px; font-size: clamp(24px, 2.2vw, 32px); line-height: 1.15; letter-spacing: -.025em; font-weight: 600; scroll-margin-top: calc(var(--nav-h) + 24px); }
.legal__body h2:first-child { margin-top: 0; }
.legal__body h3 { margin: 30px 0 10px; font-size: 19px; font-weight: 600; }
.legal__body p, .legal__body li { color: #2B3640; }
.legal__body ul { padding-left: 1.2em; }
.legal__body a { text-decoration: underline; text-underline-offset: 3px; }
.legal__card { padding: 24px 26px; border-radius: 22px; background: var(--white); border: 1px solid var(--line); }
.legal__card p { margin: 0 0 6px; }
.legal__card p:last-child { margin-bottom: 0; }

.nav--solid .nav__bar { opacity: 1; }

/* ==========================================================================
   Einblenden beim Scrollen (nur mit JS, dezent)
   ========================================================================== */
.js [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .9s var(--ease); }
.js [data-reveal].is-in { opacity: 1; transform: none; }

/* ==========================================================================
   Keyframes
   ========================================================================== */
@keyframes dash { to { stroke-dashoffset: var(--dash, -14); } }
@keyframes part-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes hero-word { from { transform: translateY(105%); } to { transform: none; } }
@keyframes fade-up { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (min-width: 900px) and (min-height: 660px) {
  .svc { position: sticky; top: calc(var(--nav-h) + 12px + var(--i) * 14px); }
  .stack { gap: 14vh; }
  .svc:focus-within { z-index: 1; }
  .svc:focus-within .svc__inner { transform: none !important; --shade: 0 !important; }
}

@media (max-width: 1180px) {
  .nav__links { display: none; }
  .nav__toggle { display: grid; }
  .finder__grid { display: block; }
  .finder__head { position: static; margin-bottom: clamp(48px, 6vw, 92px); }
  .finder__app { min-height: 0; }
}

@media (max-width: 1100px) {
  .house__grid { grid-template-columns: minmax(0, 1fr); }
  .house__tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* Laptop/Tablet: Haus so groß, dass die Erklärung darunter noch sichtbar bleibt */
@media (min-width: 641px) and (max-width: 1100px) {
  .house__stage { width: min(100%, max(440px, calc((100svh - 360px) * 900 / 640))); margin-inline: auto; }
}

/* Schmale Desktop-Karten: Liste einspaltig, damit lange Wörter nicht umbrechen */
@media (min-width: 900px) and (max-width: 1365.98px) {
  .svc__list { grid-template-columns: minmax(0, 1fr); gap: 8px; }
}
@media (min-width: 900px) and (max-width: 1100px) {
  .svc__inner { min-height: 440px; align-items: center; }
  .svc__art { min-height: 0; aspect-ratio: 6 / 5; }
}

@media (max-width: 900px) {
  :root { --nav-h: 76px; --radius-xl: 28px; --section: 80px; }
  .nav__bar { height: 58px; }
  .hero__inner { grid-template-columns: minmax(0, 1fr); }
  .section-head { margin-bottom: 36px; }
  .section-head--split { grid-template-columns: minmax(0, 1fr); align-items: start; gap: 18px; }
  .section-head--split .h1 { margin-bottom: 0; }
  .section-head .h1 { margin-bottom: 18px; }
  .career__grid { grid-template-columns: minmax(0, 1fr); row-gap: 28px; }
  .career .h1 { margin-bottom: 0; }
  .contact__grid { grid-template-columns: minmax(0, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .legal__grid { grid-template-columns: minmax(0, 1fr); }
  .legal__toc { position: static; display: none; }
}

/* Leistungen auf Tablet & Handy: wischbare Kärtchen statt hoher Stapel */
@media (max-width: 899.98px) {
  .stack {
    display: flex; gap: 12px;
    margin-inline: calc(var(--gutter) * -1);
    padding: 2px var(--gutter) 4px;
    overflow-x: auto; overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory; scroll-padding-inline: var(--gutter);
    scrollbar-width: none;
  }
  .stack::-webkit-scrollbar { display: none; }
  .svc { display: flex; flex: 0 0 min(84%, 420px); scroll-snap-align: start; }
  .svc__inner {
    display: flex; flex-direction: column; gap: 0; width: 100%; min-height: 0;
    padding: 10px; border-radius: 26px; box-shadow: none;
  }
  .svc__art { order: -1; flex: none; min-height: 0; aspect-ratio: 16 / 10; border-radius: 18px; }
  .h-labels { display: none; }
  .svc__body { flex: 1; justify-content: flex-start; padding: 16px 10px 8px; }
  .svc__title { margin: 4px 0 12px; font-size: clamp(24px, 6.6vw, 30px); line-height: 1.05; }
  .svc__text { margin-bottom: 16px; font-size: 15px; line-height: 1.5; }
  .svc__list { grid-template-columns: minmax(0, 1fr); gap: 6px; margin-bottom: 16px; font-size: 14.5px; }
  .svc__foot { margin-top: auto; padding-top: 14px; }

  .stack-nav { display: flex; align-items: center; justify-content: flex-end; gap: 10px; margin-top: 16px; }
  .stack-nav[hidden] { display: none; }
  .stack-nav__count { order: -1; margin: 0 auto 0 0; font-size: 15px; font-weight: 600; font-variant-numeric: tabular-nums; color: var(--text-2); }
  .stack-nav__btn {
    display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%;
    border: 1px solid var(--line-2); transition: background-color .2s, opacity .2s;
  }
  .stack-nav__btn .icon { width: 18px; height: 18px; }
  .stack-nav__btn:hover { background: rgba(11, 21, 30, .06); }
  .stack-nav__btn:disabled { opacity: .3; cursor: default; }
}

@media (min-width: 720px) and (max-width: 899.98px) and (min-height: 521px) {
  .svc { flex-basis: calc((100% - 12px) / 2 - 24px); }
}

@media (max-width: 899.98px) and (max-height: 520px) {
  .svc { flex-basis: min(88%, 620px); }
  .svc__inner { flex-direction: row; }
  .svc__art { width: 38%; aspect-ratio: auto; }
  .svc__text { display: none; }
  .svc__body { padding: 8px 10px 4px 18px; }
  .svc__title { margin: 8px 0 8px; }
}

@media (max-width: 640px) {
  :root { --section: 64px; --radius-xl: 24px; --radius-lg: 22px; }
  .nav__phone span { display: none; }
  .nav__phone { width: 44px; height: 44px; justify-content: center; padding: 0; border-radius: 50%; border: 1px solid rgba(243, 239, 232, .28); }
  .nav.is-scrolled .nav__phone { border-color: var(--line-2); }
  .nav .btn--sm { display: none; }
  .logo__mark { width: 30px; height: 30px; }
  .logo__word { font-size: 17px; }
  .menu__foot { margin-top: 28px; }

  .hero { padding-top: calc(var(--nav-h) + 24px); padding-bottom: calc(28px + var(--radius-xl)); }
  .hero__title { font-size: clamp(64px, 21vw, 96px); }
  .hero__lead { margin-bottom: 22px; font-size: 18px; }
  .hero__ctas .btn { flex: 1 1 auto; }
  .hero__bottom { flex-wrap: wrap; gap: 10px 16px; margin-top: 28px; padding-top: 16px; }

  .h1 { font-size: clamp(32px, 9vw, 40px); }
  .svc__text { display: none; }
  .label { margin-bottom: 10px; font-size: 14px; }
  .lead { font-size: 17px; }
  .section-head { margin-bottom: 28px; }

  .house__panel { padding: 18px; }
  .house__tabs {
    display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none;
    margin: 0 -18px 18px; padding: 0 18px;
  }
  .house__tabs::-webkit-scrollbar { display: none; }
  .house__tabs button { flex: none; white-space: nowrap; padding: 9px 14px; border-radius: 999px; }
  .house__tabs button { min-height: 44px; }
  .house__stage { margin-inline: calc(var(--gutter) * -1 + 4px); }
  .hotspot { display: none; }
  .part__title { font-size: 26px; margin-bottom: 8px; }
  .part p { margin-bottom: 12px; }

  .finder__app { padding: 20px 18px; }
  .finder__top { margin-bottom: 20px; }
  .finder__q { margin-bottom: 18px; font-size: 24px; }
  .finder__opts, .finder__opts--2 { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .opt__box { flex-direction: row; flex-wrap: wrap; align-items: center; column-gap: 14px; padding: 14px 16px; border-radius: 16px; }
  .opt__box .icon { margin: 0; width: 26px; height: 26px; }
  .opt__box strong { flex: 1 1 0; min-width: 0; }
  .opt__box small { flex-basis: 100%; padding-left: 40px; margin-top: -4px; }
  .finder__nav { padding-top: 20px; }

  .history li { grid-template-columns: 64px minmax(0, 1fr); gap: 12px; padding: 14px 0; }
  .history__year { font-size: 14px; }
  .history p { font-size: 16px; }

  .ccard { padding: 12px 16px 12px 12px; border-radius: 18px; }
  .ccard__icon { width: 42px; height: 42px; border-radius: 12px; }
  .ccard__body strong { font-size: 16px; }
  .hours { padding: 18px; }
  .hours .status { border-radius: 14px; align-items: flex-start; }
  .hours .status__dot { margin-top: 5px; }
  .hours__list div { font-size: 14.5px; }
  .form { padding: 20px 18px; }
  .form__row { grid-template-columns: minmax(0, 1fr); }

  .footer { padding-top: 56px; }
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 18px; font-size: 15px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 359px) {
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
}

/* Querformat am Handy / kleine Tablets: wenig Höhe */
@media (max-width: 1100px) and (max-height: 520px) {
  .hotspot { display: none; }
  .hero { padding-top: calc(var(--nav-h) + 8px); }
  .hero__title { font-size: clamp(44px, 15vh, 72px); }
  .hero__inner { grid-template-columns: minmax(0, 1fr) minmax(260px, 340px); }
}
@media (max-height: 520px) {
  .menu { padding-top: calc(var(--nav-h) + 8px); }
  .menu__links a { font-size: 26px; padding: 6px 0; }
  .menu__foot { margin-top: 20px; }
}

/* ---------- Reduzierte Bewegung ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
}

/* Finder: Navigation (Zurück / Weiter) */
.finder__nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.finder__next {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px;
  background: var(--ink); color: var(--paper);
  font-size: 15px; font-weight: 600;
  transition: opacity .3s, transform .5s var(--ease);
}
.finder__next .icon { width: 17px; height: 17px; }
.finder__next:disabled { opacity: .18; cursor: default; }
.finder__next:not(:disabled):hover { transform: translateX(3px); }