/*!
 * Luminstall: Hauptstylesheet
 * Author: Jashari Besart
 *
 * Gestaltungsidee: Das Hero-Bild – eine vereiste Kälteanlage vor einer
 * hell/dunkel geteilten Wand – gibt die Richtung vor. Beton, Graphit,
 * Schnee und Eis; Kupfer als warmer Gegenpol (Kupferleitungen).
 */

/* ---------- Schriften (lokal gehostet) ---------- */
@font-face { font-family: 'Barlow Condensed'; src: url('../fonts/barlow-condensed-600.woff2') format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Barlow Condensed'; src: url('../fonts/barlow-condensed-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Barlow Condensed'; src: url('../fonts/barlow-condensed-800.woff2') format('woff2'); font-weight: 800; font-display: swap; }
@font-face { font-family: 'Barlow'; src: url('../fonts/barlow-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Barlow'; src: url('../fonts/barlow-500.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Barlow'; src: url('../fonts/barlow-600.woff2') format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'IBM Plex Mono'; src: url('../fonts/plex-mono-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'IBM Plex Mono'; src: url('../fonts/plex-mono-500.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'DSEG7'; src: url('../fonts/dseg7-bold.woff2') format('woff2'); font-weight: 700; font-display: block; }

/* ---------- Design-Tokens (Farben aus dem Hero-Bild abgeleitet) ---------- */
:root {
  --snow: #f4f5f5;
  --concrete-100: #e8e9e9;
  --concrete-200: #d8d7d6;
  --concrete-300: #bdbebf;
  --concrete-400: #9c9e9f;
  --steel-500: #6d767c;
  --steel-600: #4c545b;
  --muted-light: #555c63;   /* 6.2:1 auf --snow */
  --muted-dark: #8a939a;    /* 6.1:1 auf --graphite-950 */
  --graphite-700: #2a2f34;
  --graphite-800: #1a1d20;
  --graphite-900: #121518;
  --graphite-950: #0b0e11;

  --ice-600: #1d5975;
  --ice-500: #2f7fae;
  --ice-400: #5aaad8;
  --ice-300: #92cbeb;
  --copper-600: #94491c;
  --copper-500: #b8652f;

  --text: var(--graphite-950);
  --text-muted: var(--steel-600);
  --text-inv: #eef0f1;
  --text-inv-muted: #9aa3a9;
  --line-light: rgba(11, 14, 17, .14);
  --line-dark: rgba(255, 255, 255, .12);

  --f-display: 'Barlow Condensed', 'Arial Narrow', sans-serif;
  --f-body: 'Barlow', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, 'Consolas', monospace;
  --f-seg: 'DSEG7', var(--f-mono);

  --split: 48.2%;           /* Position der Wandteilung im Hero-Bild */
  --tile: clamp(96px, 9.77vw, 176px);
  --tiles: linear-gradient(to right, rgba(128, 132, 136, .16) 1px, transparent 1px) 0 0 / var(--tile) var(--tile),
           linear-gradient(to bottom, rgba(128, 132, 136, .16) 1px, transparent 1px) 0 0 / var(--tile) var(--tile);
  --wall-light: radial-gradient(130% 140% at 0% 0%, #f3f3f2 0%, #d8d8d7 40%, #aeb0b1 100%);
  --wall-dark: radial-gradient(130% 140% at 100% 0%, #22262a 0%, #131619 45%, #0a0d10 100%);
  --pipe: linear-gradient(to bottom, var(--copper-500), #a07a5e 30%, #5f93b3 62%, var(--ice-400));

  --container: 1240px;
  --gutter: clamp(16px, 4vw, 40px);
  --header-h: 76px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ---------- Basis ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 8px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--f-body);
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
  background: var(--snow);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--ice-600); text-decoration: none; transition: color .2s; }
a:hover { color: var(--copper-600); }
h1, h2, h3, h4 { margin: 0; font-weight: 700; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--ice-400); outline-offset: 3px; }
.on-light :focus-visible, .legal :focus-visible, .contact-form :focus-visible { outline-color: var(--ice-600); }
::selection { background: var(--ice-300); color: var(--graphite-950); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.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; }
.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 1000; background: var(--graphite-950); color: #fff; padding: 10px 16px; }
.skip-link:focus { left: 8px; color: #fff; }

/* Flächen */
.on-light { background: var(--snow); color: var(--text); }
.on-dark { background: var(--graphite-950); color: var(--text-inv); }
.with-tiles.on-light { background: var(--tiles), var(--snow); }
.with-tiles.on-dark { background: var(--tiles), var(--graphite-950); }
.section { padding: clamp(80px, 11vw, 160px) 0; position: relative; }

/* Label im Stil einer Rohrleitungs-Kennzeichnung */
.tag {
  display: inline-flex; align-items: stretch; height: 30px;
  font-family: var(--f-mono); font-weight: 500; font-size: 12px; line-height: 1;
  letter-spacing: .14em; text-transform: uppercase;
  border: 1px solid currentColor; margin-bottom: 28px;
}
.tag > * { display: inline-flex; align-items: center; padding: 0 12px; }
.tag b { font-weight: 500; background: currentColor; }
.tag b span { color: var(--snow); padding: 0; }
.on-dark .tag b span { color: var(--graphite-950); }
.tag svg { width: 22px; height: 10px; padding: 0; margin-right: 12px; flex: none; }
.on-light .tag { color: var(--graphite-950); }
.on-dark .tag { color: var(--concrete-300); }

/* Überschriften */
.display { font-family: var(--f-display); font-weight: 800; text-transform: uppercase; line-height: .92; letter-spacing: -.005em; }
.h2 { font-size: clamp(42px, 5.6vw, 84px); max-width: 16ch; }
.h2 .muted { color: var(--steel-500); }
.lead { font-size: clamp(18px, 1.6vw, 21px); color: var(--text-muted); max-width: 52ch; margin-top: 28px; }
.on-dark .lead { color: var(--text-inv-muted); }
.on-dark .lead a, .faq-a a { color: var(--ice-300); text-decoration: underline; text-underline-offset: 3px; }
.on-dark .lead a:hover, .faq-a a:hover { color: #fff; }
.section-head { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 32px; margin-bottom: clamp(56px, 7vw, 96px); }
.section-head .lead { margin-bottom: 0; }
.on-dark .section-index { color: var(--muted-dark); }
.section-index { font-family: var(--f-mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted-light); text-align: right; line-height: 1.8; }

/* Buttons */
.btn {
  --bg: var(--graphite-950); --fg: #fff; --bd: var(--graphite-950);
  position: relative; display: inline-flex; align-items: center; justify-content: space-between; gap: 18px;
  height: 54px; padding: 0 20px 0 22px; min-width: 210px;
  font-family: var(--f-display); font-weight: 700; font-size: 18px; letter-spacing: .06em; text-transform: uppercase;
  color: var(--fg); background: var(--bg); border: 1px solid var(--bd); border-radius: 2px;
  cursor: pointer; overflow: hidden; isolation: isolate; line-height: 1; white-space: nowrap;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.btn::before {
  content: ''; position: absolute; inset: 0; z-index: -1; background: var(--hover-bg, var(--ice-400));
  transform: scaleX(0); transform-origin: left; transition: transform .45s var(--ease);
}
.btn:hover { color: var(--hover-fg, var(--graphite-950)); border-color: var(--hover-bg, var(--ice-400)); }
.btn:hover::before { transform: scaleX(1); }
.btn svg { width: 20px; height: 20px; flex: none; transition: transform .3s var(--ease); }
.btn:hover svg.arrow { transform: translateX(4px); }
.btn-ice { --bg: var(--ice-400); --fg: var(--graphite-950); --bd: var(--ice-400); --hover-bg: #fff; }
.btn-light { --bg: #fff; --fg: var(--graphite-950); --bd: #fff; --hover-bg: var(--ice-400); }
.btn-line { --bg: transparent; --fg: currentColor; --bd: currentColor; --hover-bg: #fff; --hover-fg: var(--graphite-950); }
.btn-dark { --hover-bg: var(--copper-500); --hover-fg: #fff; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--header-h);
  display: flex; align-items: center;
  transition: background .35s, border-color .35s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled, .site-header.solid {
  background: rgba(11, 14, 17, .94);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom-color: var(--line-dark);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; width: 100%; padding: 0 clamp(16px, 3.6vw, 56px); }
.brand { display: inline-flex; align-items: center; background: #fff; padding: 5px 8px; box-shadow: 0 6px 18px -8px rgba(0, 0, 0, .45); flex: none; }
.brand img { height: 34px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a:not(.btn) {
  position: relative; display: block; color: rgba(255, 255, 255, .86);
  font-family: var(--f-display); font-weight: 600; font-size: 17px; letter-spacing: .08em; text-transform: uppercase;
  padding: 10px 14px;
}
.nav-links a:not(.btn)::after {
  content: ''; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px; background: var(--ice-400);
  transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease);
}
.nav-links a:not(.btn):hover { color: #fff; }
.nav-links a:not(.btn):hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-links .btn { height: 44px; min-width: 0; margin-left: 14px; font-size: 16px; gap: 12px; padding: 0 16px; }
.nav-links .btn svg { width: 17px; height: 17px; }
.nav-toggle {
  display: none; width: 48px; height: 48px; border: 1px solid rgba(255, 255, 255, .3); border-radius: 2px;
  background: transparent; cursor: pointer; position: relative; z-index: 2; padding: 0;
}
.nav-toggle span { position: absolute; left: 13px; right: 13px; height: 2px; background: #fff; transition: transform .3s var(--ease), opacity .2s, top .3s var(--ease), background .3s; }
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 22px; right: 19px; }
.nav-toggle span:nth-child(3) { top: 28px; }
.nav-open .nav-toggle span:nth-child(1) { top: 22px; transform: rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { top: 22px; transform: rotate(-45deg); }

/* ---------- Hero: das Bild als Plakat, unbeschnitten ---------- */
.hero {
  position: relative; container-type: inline-size;
  aspect-ratio: 1792 / 1024; width: 100%; overflow: hidden;
  background: var(--graphite-950); color: var(--text);
}
.hero-media, .hero-media img { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-media img { object-fit: cover; object-position: center; }
/* Kältenebel über dem Boden */
.hero-mist {
  position: absolute; left: -10%; right: -10%; bottom: 5%; height: 24%; pointer-events: none;
  background:
    radial-gradient(40% 60% at 30% 60%, rgba(236, 244, 250, .22), transparent 70%),
    radial-gradient(35% 55% at 70% 55%, rgba(146, 203, 235, .16), transparent 70%);
  filter: blur(18px); animation: mist 26s ease-in-out infinite alternate;
}
@keyframes mist { from { transform: translateX(-4%); opacity: .65; } to { transform: translateX(4%); opacity: 1; } }
.hero::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 14%; pointer-events: none;
  background: linear-gradient(to bottom, rgba(11, 14, 17, 0), var(--graphite-950));
}

.hero-side { position: absolute; top: 12.2cqw; z-index: 2; }
.hero-side--light { left: 3.6cqw; color: var(--graphite-950); }
.hero-side--dark { right: 3.6cqw; color: #fff; text-align: right; display: flex; flex-direction: column; align-items: flex-end; }
.hero-word {
  font-family: var(--f-display); font-weight: 800; text-transform: uppercase;
  font-size: 5.6cqw; line-height: .9; letter-spacing: -.01em; margin: 0;
}
.hero-side--dark .hero-word { text-shadow: 0 2px 30px rgba(0, 0, 0, .5); }
.hero-kicker {
  font-family: var(--f-mono); font-weight: 500; font-size: max(11px, .8cqw); letter-spacing: .16em; text-transform: uppercase;
  margin: 0 0 1.3cqw; display: flex; align-items: center; gap: 10px;
}
.hero-side--light .hero-kicker { color: var(--graphite-800); }
.hero-side--dark .hero-kicker { color: var(--concrete-300); justify-content: flex-end; }
.hero-kicker::before { content: ''; width: 2.2cqw; height: 1px; background: currentColor; }
.hero-side--dark .hero-kicker::before { order: 2; }
.hero-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 12px; margin-top: 2.8cqw; }
.hero-actions .btn { min-width: 15.5cqw; }
.hero-actions .btn-line { color: #fff; }

/* Scroll-Hinweis exakt auf der Teilungslinie */
.hero-scroll {
  position: absolute; left: var(--split); bottom: 2.2cqw; z-index: 3; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .24em; text-transform: uppercase; color: #fff;
  mix-blend-mode: difference;
}
.hero-scroll i { display: block; width: 1px; height: 46px; background: rgba(255, 255, 255, .35); position: relative; overflow: hidden; }
.hero-scroll i::after { content: ''; position: absolute; left: 0; top: -40%; width: 1px; height: 40%; background: #fff; animation: drip 2.2s var(--ease) infinite; }
@keyframes drip { to { top: 100%; } }

/* ---------- Kühlstellenregler (Anzeige) ---------- */
.ctrl {
  --seg: var(--ice-400);
  display: inline-grid; grid-template-columns: auto auto; gap: 0 14px; align-items: start;
  background: linear-gradient(180deg, #181b1e, #0b0d0f); color: var(--seg);
  border: 1px solid #2d3237; border-radius: 3px; padding: 12px 14px 10px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .08) inset, 0 18px 40px -18px rgba(0, 0, 0, .8);
  font-family: var(--f-mono);
}
.ctrl-screen { position: relative; font-family: var(--f-seg); font-weight: 700; line-height: 1; font-size: 34px; text-align: right; white-space: nowrap; }
.ctrl-ghost { opacity: .09; }
.ctrl-value { position: absolute; right: 0; top: 0; text-shadow: 0 0 12px rgba(90, 170, 216, .55); }
.ctrl-unit { font-size: 13px; line-height: 1; }
.ctrl-bar { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 10px; padding-top: 8px; border-top: 1px solid #262b30; }
.ctrl-label { font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: #7d868d; white-space: nowrap; }
.ctrl-leds { display: flex; gap: 8px; }
.ctrl-leds svg { width: 12px; height: 12px; color: #2b3136; }
.ctrl-leds .on { color: var(--seg); filter: drop-shadow(0 0 4px rgba(90, 170, 216, .8)); }
.ctrl-leds .blink { animation: blink 1.6s steps(1) infinite; }
@keyframes blink { 50% { opacity: .25; } }
/* Variante im Hero: skaliert mit dem Bild */
.hero .ctrl { margin-top: 2.6cqw; padding: .85cqw 1cqw .7cqw; gap: 0 .9cqw; }
.hero .ctrl-screen { font-size: 2.5cqw; }
.hero .ctrl-unit { font-size: max(10px, .9cqw); }
.hero .ctrl-bar { margin-top: .7cqw; padding-top: .55cqw; gap: 1cqw; }
.hero .ctrl-label { font-size: max(9px, .66cqw); }
.hero .ctrl-leds { gap: .55cqw; }
.hero .ctrl-leds svg { width: max(9px, .8cqw); height: max(9px, .8cqw); }

/* ---------- Intro ---------- */
.intro { padding: clamp(48px, 7vw, 110px) 0 clamp(80px, 10vw, 140px); }
.intro-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.6fr); gap: 48px; }
.intro-statement {
  font-weight: 500; font-size: clamp(26px, 3.3vw, 48px); line-height: 1.16; letter-spacing: -.01em;
  color: var(--concrete-200); max-width: 28ch; margin: 0;
}
.intro-statement em { font-style: normal; color: var(--ice-400); }
.intro-facts { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: clamp(56px, 7vw, 96px); border-top: 1px solid var(--line-dark); }
.intro-facts li { padding: 28px 28px 0 0; }
.intro-facts li + li { padding-left: 28px; border-left: 1px solid var(--line-dark); }
.intro-facts span { font-family: var(--f-mono); font-size: 12px; letter-spacing: .14em; color: var(--muted-dark); }
.intro-facts b { display: block; font-family: var(--f-display); font-weight: 700; font-size: 28px; letter-spacing: .02em; text-transform: uppercase; color: #fff; margin: 12px 0 6px; line-height: 1; }
.intro-facts p { color: var(--text-inv-muted); font-size: 16px; margin: 0; }

/* ---------- Leistungen: der Kreislauf ---------- */
.cycle { position: relative; --p: 0; }
.cycle-pipe {
  position: absolute; top: 16px; bottom: 20px; left: 50%; width: 10px; transform: translateX(-50%);
  background: var(--concrete-100); border: 1px solid var(--concrete-300); border-radius: 6px;
}
.cycle-pipe i {
  position: absolute; inset: -1px; border-radius: 6px;
  background: repeating-linear-gradient(to bottom, rgba(255, 255, 255, .5) 0 5px, transparent 5px 26px) 0 0 / 100% 26px, var(--pipe);
  clip-path: inset(0 0 calc(100% - var(--p) * 100%) 0);
  animation: flow 1.1s linear infinite;
}
@keyframes flow { to { background-position: 0 26px, 0 0; } }
.cycle-cap { position: relative; z-index: 2; display: flex; justify-content: center; }
.cycle-cap span {
  font-family: var(--f-mono); font-weight: 500; font-size: 12px; letter-spacing: .16em; text-transform: uppercase;
  padding: 9px 14px; border: 1px solid var(--graphite-950); background: var(--snow); color: var(--graphite-950);
}
.cycle-cap--end span { background: var(--graphite-950); color: var(--ice-300); }
.cycle-steps { padding: clamp(56px, 7vw, 96px) 0; }
.cycle-step {
  position: relative; display: grid; grid-template-columns: minmax(0, 1fr) 140px minmax(0, 1fr); grid-template-areas: 'media node text';
  align-items: center;
}
.cycle-step:nth-child(even) { grid-template-areas: 'text node media'; }
.cycle-step + .cycle-step { margin-top: clamp(72px, 9vw, 130px); }
.cycle-media { grid-area: media; margin: 0; position: relative; }
.cycle-media::before { content: ''; position: absolute; inset: 14px 14px -14px -14px; border: 1px solid var(--concrete-300); }
.cycle-step:nth-child(even) .cycle-media::before { inset: 14px -14px -14px 14px; }
.cycle-media .frame { position: relative; overflow: hidden; background: var(--concrete-200); aspect-ratio: 4 / 3; }
.cycle-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease), filter .6s; filter: saturate(.85); }
.cycle-step:hover .cycle-media img { transform: scale(1.04); filter: saturate(1); }
.cycle-media figcaption {
  position: absolute; left: 0; bottom: 0; background: var(--graphite-950); color: var(--concrete-300);
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; padding: 8px 12px;
}
.cycle-node { grid-area: node; justify-self: center; position: relative; z-index: 2; }
.gauge { width: 76px; height: 76px; display: block; filter: drop-shadow(0 10px 16px rgba(11, 14, 17, .25)); }
.gauge .face { fill: #fff; stroke: var(--graphite-950); stroke-width: 2.5; }
.gauge .ticks { stroke: var(--graphite-950); stroke-width: 1.4; fill: none; }
.gauge .zone-cold { stroke: var(--ice-400); stroke-width: 2.5; fill: none; }
.gauge .zone-warm { stroke: var(--copper-500); stroke-width: 2.5; fill: none; }
.gauge .needle { stroke: var(--needle, var(--copper-500)); stroke-width: 2.2; stroke-linecap: round; transform-box: view-box; transform-origin: 32px 32px; transform: rotate(-135deg); transition: transform 1.5s cubic-bezier(.3, 1.5, .5, 1); }
.gauge .hub { fill: var(--graphite-950); }
.cycle-step.on .gauge .needle { transform: rotate(var(--angle, 0deg)); }
.cycle-text { grid-area: text; max-width: 470px; }
.cycle-step:nth-child(even) .cycle-text { justify-self: end; }
.cycle-meta { display: flex; align-items: center; gap: 12px; font-family: var(--f-mono); font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted-light); margin-bottom: 18px; }
.cycle-meta b { font-weight: 500; color: var(--graphite-950); }
.cycle-meta::after { content: ''; width: 64px; height: 1px; background: var(--concrete-300); }
.cycle-text h3 { font-family: var(--f-display); font-weight: 800; text-transform: uppercase; font-size: clamp(34px, 3.4vw, 50px); line-height: .95; margin-bottom: 18px; }
.cycle-text p { color: var(--text-muted); margin: 0; }

/* ---------- Projekte ---------- */
.gallery { display: grid; grid-template-columns: repeat(5, 1fr); gap: clamp(12px, 1.6vw, 24px); align-items: start; }
.gallery li:nth-child(even) { margin-top: clamp(40px, 6vw, 96px); }
.shot { display: block; width: 100%; padding: 0; border: 0; background: none; cursor: zoom-in; text-align: left; color: inherit; }
.shot .frame { position: relative; display: block; overflow: hidden; aspect-ratio: 3 / 4; background: var(--graphite-800); }
.shot img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease), filter .6s; }
.shot .frame::after { content: ''; position: absolute; inset: 0; border: 1px solid rgba(255, 255, 255, .12); pointer-events: none; }
.shot .zoom {
  position: absolute; right: 10px; top: 10px; width: 36px; height: 36px; display: grid; place-items: center;
  background: rgba(11, 14, 17, .75); color: #fff; opacity: 0; transform: translateY(-6px); transition: opacity .3s, transform .3s var(--ease);
}
.shot .zoom svg { width: 18px; height: 18px; }
.shot:hover .zoom, .shot:focus-visible .zoom { opacity: 1; transform: none; }
@media (hover: hover) {
  .shot img { filter: grayscale(.6) contrast(1.05) brightness(.9); }
  .shot:hover img, .shot:focus-visible img { filter: none; transform: scale(1.05); }
}
.shot-cap { display: block; padding-top: 14px; }
.shot-cap small { display: block; font-family: var(--f-mono); font-size: 11px; letter-spacing: .16em; color: var(--muted-dark); margin-bottom: 6px; }
.shot-cap span { display: block; font-family: var(--f-display); font-weight: 600; font-size: 20px; letter-spacing: .03em; text-transform: uppercase; color: #fff; line-height: 1.1; }

/* Lightbox */
.lightbox {
  width: 100vw; height: 100vh; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0;
  background: rgba(8, 10, 12, .97); color: #fff;
}
.lightbox::backdrop { background: rgba(8, 10, 12, .8); }
.lightbox[open] { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; } }
.lb-top { display: flex; align-items: center; justify-content: space-between; padding: 16px clamp(16px, 3vw, 32px); font-family: var(--f-mono); font-size: 12px; letter-spacing: .16em; color: var(--concrete-300); }
.lb-stage { position: relative; display: grid; place-items: center; min-height: 0; padding: 0 clamp(8px, 8vw, 110px); }
.lb-stage img { max-width: 100%; max-height: calc(100vh - 170px); max-height: calc(100dvh - 170px); width: auto; height: auto; object-fit: contain; }
.lb-cap { padding: 16px clamp(16px, 3vw, 32px) 24px; text-align: center; font-family: var(--f-display); font-weight: 600; font-size: 22px; letter-spacing: .04em; text-transform: uppercase; }
.lb-btn { width: 48px; height: 48px; display: grid; place-items: center; padding: 0; background: transparent; border: 1px solid rgba(255, 255, 255, .3); color: #fff; cursor: pointer; border-radius: 2px; transition: background .2s, color .2s; }
.lb-btn:hover { background: #fff; color: var(--graphite-950); }
.lb-btn svg { width: 20px; height: 20px; }
.lb-prev, .lb-next { position: absolute; top: 50%; transform: translateY(-50%); }
.lb-prev { left: clamp(8px, 2vw, 32px); }
.lb-next { right: clamp(8px, 2vw, 32px); }

/* ---------- Erfahrung ---------- */
.experience-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
.experience-aside { position: sticky; top: calc(var(--header-h) + 40px); }
.panel {
  position: relative; margin-top: 48px; padding: 30px 26px 24px;
  background: linear-gradient(180deg, #2a2f34, #1c2024); border: 1px solid #0b0e11; border-radius: 3px;
  box-shadow: 0 30px 60px -30px rgba(11, 14, 17, .6), 0 1px 0 rgba(255, 255, 255, .08) inset;
}
.panel-screws i { position: absolute; width: 10px; height: 10px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #8b9197, #3b4146); }
.panel-screws i::after { content: ''; position: absolute; left: 2px; right: 2px; top: 4.5px; height: 1px; background: #1b1f22; transform: rotate(35deg); }
.panel-screws i:nth-child(1) { left: 9px; top: 9px; }
.panel-screws i:nth-child(2) { right: 9px; top: 9px; }
.panel-screws i:nth-child(3) { left: 9px; bottom: 9px; }
.panel-screws i:nth-child(4) { right: 9px; bottom: 9px; }
.panel-title { font-family: var(--f-mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: #8d969d; margin-bottom: 16px; display: flex; justify-content: space-between; gap: 12px; }
.panel-title .led { display: inline-flex; align-items: center; gap: 8px; }
.panel-title .led::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: #5ad88a; box-shadow: 0 0 8px #5ad88a; }
.panel-displays { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.panel .ctrl { display: grid; grid-template-columns: 1fr auto; gap: 0 6px; padding: 12px 12px 10px; }
.panel .ctrl-screen { font-size: clamp(24px, 2.4vw, 34px); }
.panel .ctrl-unit { font-size: 11px; }
.specs { border-top: 1px solid var(--line-light); }
.specs li { display: grid; grid-template-columns: 72px 1fr; gap: 8px; padding: 32px 0; border-bottom: 1px solid var(--line-light); }
.specs .no { font-family: var(--f-mono); font-size: 13px; letter-spacing: .12em; color: var(--copper-600); padding-top: 6px; transition: color .3s; }
.specs h3 { font-family: var(--f-display); font-weight: 700; font-size: clamp(26px, 2.4vw, 34px); text-transform: uppercase; line-height: 1; margin-bottom: 12px; }
.specs p { color: var(--text-muted); margin: 0; font-size: 17px; }
.specs li:hover .no { color: var(--ice-500); }

/* ---------- Häufige Fragen ---------- */
.faq-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
.faq-head { position: sticky; top: calc(var(--header-h) + 40px); }
.faq-list { border-top: 1px solid var(--line-dark); }
.faq-item { border-bottom: 1px solid var(--line-dark); }
.faq-item summary {
  display: grid; grid-template-columns: 56px minmax(0, 1fr) 28px; align-items: baseline; gap: 8px;
  padding: 26px 0; cursor: pointer; list-style: none; color: #fff;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary h3 { font-family: var(--f-display); font-weight: 700; font-size: clamp(22px, 2.2vw, 30px); line-height: 1.05; text-transform: uppercase; letter-spacing: .01em; transition: color .2s; }
.faq-item summary:hover h3 { color: var(--ice-300); }
.faq-item .no { font-family: var(--f-mono); font-size: 13px; letter-spacing: .12em; color: var(--ice-400); }
.faq-icon { position: relative; width: 18px; height: 18px; justify-self: end; align-self: center; }
.faq-icon::before, .faq-icon::after { content: ''; position: absolute; left: 0; right: 0; top: 50%; height: 2px; margin-top: -1px; background: var(--ice-400); transition: transform .35s var(--ease); }
.faq-icon::after { transform: rotate(90deg); }
.faq-item[open] .faq-icon::after { transform: rotate(0deg); }
.faq-a { padding: 0 36px 28px 64px; }
.faq-a p { color: var(--text-inv-muted); margin: 0; max-width: 62ch; }
.faq-item[open] .faq-a { animation: rise .45s var(--ease); }

/* ---------- Kontakt: wieder die geteilte Wand ---------- */
.contact {
  position: relative; color: var(--text);
  background: var(--tiles), var(--wall-light) left / var(--split) 100% no-repeat, var(--wall-dark) right / calc(100% - var(--split)) 100% no-repeat;
  padding: clamp(96px, 12vw, 170px) 0 clamp(80px, 10vw, 140px);
}
.contact-head { text-align: center; margin-bottom: clamp(56px, 7vw, 100px); }
.contact-head .tag { color: #fff; background: var(--graphite-950); border-color: var(--graphite-950); }
.contact-head .tag b { background: var(--ice-400); }
.contact-head .tag b span { color: var(--graphite-950); }
.contact-title {
  font-family: var(--f-display); font-weight: 800; text-transform: uppercase; line-height: .9;
  font-size: clamp(44px, 8.2vw, 148px); letter-spacing: -.01em;
  color: #fff; mix-blend-mode: difference; margin: 0 auto; max-width: 14ch;
}
.contact-grid { display: grid; grid-template-columns: var(--split) 1fr; margin: 0 calc(-1 * var(--gutter)); }
.contact-grid > * { min-width: 0; }
.contact-form { padding: 0 clamp(24px, 5vw, 80px) 0 var(--gutter); }
.contact-direct { padding: 0 var(--gutter) 0 clamp(24px, 5vw, 80px); color: var(--text-inv); }
.contact h3 { font-family: var(--f-mono); font-weight: 500; font-size: 12px; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 24px; }
.contact-form h3 { color: var(--graphite-800); }
.contact-direct h3 { color: var(--concrete-300); }

.field { margin-bottom: 18px; }
.field label, .field legend { display: block; font-family: var(--f-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--graphite-800); margin-bottom: 8px; padding: 0; }
.field input, .field textarea {
  width: 100%; font: inherit; font-size: 17px; color: var(--graphite-950);
  background: rgba(255, 255, 255, .72); border: 1px solid rgba(11, 14, 17, .28); border-radius: 2px; padding: 14px 16px;
  transition: border-color .2s, background .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--graphite-950); background: #fff; box-shadow: 0 0 0 3px rgba(90, 170, 216, .45); }
.field textarea { min-height: 130px; resize: vertical; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
fieldset.field { border: 0; margin: 0 0 18px; padding: 0; min-width: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips input { position: absolute; opacity: 0; pointer-events: none; }
.chips label {
  margin: 0; cursor: pointer; font-family: var(--f-display); font-weight: 600; font-size: 16px; letter-spacing: .06em; text-transform: none;
  color: var(--graphite-950); border: 1px solid rgba(11, 14, 17, .3); padding: 9px 14px; border-radius: 2px; background: rgba(255, 255, 255, .5);
  transition: background .2s, color .2s, border-color .2s;
}
.chips label:hover { border-color: var(--graphite-950); }
.chips input:checked + label { background: var(--graphite-950); color: #fff; border-color: var(--graphite-950); }
.chips input:focus-visible + label { outline: 2px solid var(--ice-500); outline-offset: 2px; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 8px; }
.form-note { font-size: 14px; color: var(--graphite-800); margin: 14px 0 0; max-width: 46ch; }

.direct-list { border-top: 1px solid var(--line-dark); }
.direct-item { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 26px 0; border-bottom: 1px solid var(--line-dark); color: #fff; }
.direct-item small { display: block; font-family: var(--f-mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--text-inv-muted); margin-bottom: 8px; }
.direct-item strong { display: block; font-family: var(--f-display); font-weight: 700; font-size: clamp(28px, 3.2vw, 46px); line-height: 1; letter-spacing: .01em; overflow-wrap: anywhere; }
.direct-item svg { width: 28px; height: 28px; flex: none; color: var(--ice-400); transition: transform .3s var(--ease); }
.direct-item:hover { color: var(--ice-300); }
.direct-item:hover svg { transform: translate(4px, -4px); }
.person { display: flex; align-items: center; gap: 16px; margin-top: 36px; }
.person-mark {
  width: 56px; height: 56px; display: grid; place-items: center; flex: none;
  border: 1px solid var(--ice-400); color: var(--ice-300); font-family: var(--f-display); font-weight: 800; font-size: 22px; letter-spacing: .04em;
}
.person strong { display: block; font-family: var(--f-display); font-weight: 700; font-size: 22px; letter-spacing: .03em; text-transform: uppercase; color: #fff; line-height: 1.1; }
.person span { color: var(--text-inv-muted); font-size: 15px; }
.direct-note { margin-top: 32px; padding: 16px 18px; border-left: 2px solid var(--copper-500); background: rgba(255, 255, 255, .04); color: var(--text-inv-muted); font-size: 15px; }
.direct-note b { color: #fff; font-weight: 600; }

/* ---------- Footer ---------- */
.site-footer { background: var(--tiles), var(--graphite-950); color: var(--text-inv-muted); padding: clamp(64px, 8vw, 110px) 0 28px; font-size: 16px; border-top: 1px solid var(--line-dark); }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 56px; }
.footer-brand .brand { margin-bottom: 22px; }
.footer-brand p { max-width: 34ch; }
.site-footer .footer-title { font-family: var(--f-mono); font-weight: 500; font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--muted-dark); margin-bottom: 18px; }
.site-footer li { margin-bottom: 10px; }
.site-footer a, .link-button { color: var(--concrete-200); }
.site-footer a:hover, .link-button:hover { color: var(--ice-300); }
.link-button { background: none; border: 0; padding: 0; font: inherit; cursor: pointer; text-align: left; }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 24px; border-top: 1px solid var(--line-dark);
  font-family: var(--f-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
}
.footer-bottom .ok { display: inline-flex; align-items: center; gap: 8px; }
.footer-bottom .ok::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--ice-400); }

/* ---------- Cookie-Hinweis ---------- */
.cookie-notice {
  position: fixed; z-index: 200; left: 16px; bottom: 16px; max-width: 420px; width: calc(100% - 32px);
  background: var(--graphite-950); color: var(--text-inv); border: 1px solid #2d3237; border-radius: 3px;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .6);
  padding: 20px 22px; display: none; animation: rise .5s var(--ease);
}
.cookie-notice.show { display: block; }
.nav-open .cookie-notice { display: none; }
.cookie-notice .cookie-title { font-family: var(--f-mono); font-weight: 500; font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--ice-300); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.cookie-notice .cookie-title::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--ice-400); box-shadow: 0 0 8px var(--ice-400); }
.cookie-notice p { font-size: 15px; color: var(--text-inv-muted); margin-bottom: 16px; }
.cookie-notice a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.cookie-notice .btn { height: 44px; min-width: 0; font-size: 16px; }
@keyframes rise { from { transform: translateY(24px); opacity: 0; } }

/* ---------- Rechtstexte ---------- */
.legal-hero {
  position: relative; padding: calc(var(--header-h) + clamp(64px, 9vw, 130px)) var(--gutter) clamp(64px, 8vw, 110px);
  background: var(--tiles), var(--wall-light) left / var(--split) 100% no-repeat, var(--wall-dark) right / calc(100% - var(--split)) 100% no-repeat;
  text-align: center; overflow: hidden;
}
.legal-hero h1 {
  font-family: var(--f-display); font-weight: 800; text-transform: uppercase; line-height: .88;
  font-size: clamp(52px, 11vw, 190px); letter-spacing: -.01em; color: #fff; mix-blend-mode: difference; overflow-wrap: anywhere;
}
.legal-hero p { font-family: var(--f-mono); font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: #fff; mix-blend-mode: difference; margin: 24px 0 0; }
.legal { padding: clamp(56px, 7vw, 96px) 0 clamp(40px, 6vw, 80px); }
.legal-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.legal-toc { position: sticky; top: calc(var(--header-h) + 32px); font-size: 15px; }
.legal-toc h2 { font-family: var(--f-mono); font-weight: 500; font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--muted-light); margin-bottom: 14px; }
.legal-toc li { border-top: 1px solid var(--line-light); }
.legal-toc a { display: block; padding: 9px 0; color: var(--graphite-800); }
.legal-toc a:hover { color: var(--copper-600); }
.legal-body { max-width: 760px; }
.legal-body section { padding: 0 0 40px; margin-bottom: 40px; border-bottom: 1px solid var(--line-light); }
.legal-body section:last-of-type { border-bottom: 0; margin-bottom: 0; }
.legal-body h2 { font-family: var(--f-display); font-weight: 800; text-transform: uppercase; font-size: clamp(28px, 3vw, 40px); line-height: 1; margin-bottom: 20px; display: flex; gap: 16px; align-items: baseline; }
.legal-body h2 span { font-family: var(--f-mono); font-weight: 500; font-size: 13px; letter-spacing: .12em; color: var(--copper-600); }
.legal-body p, .legal-body li { color: #2f363c; }
.legal-body ul { margin-bottom: 1em; }
.legal-body ul li { position: relative; padding-left: 22px; margin-bottom: .4em; }
.legal-body ul li::before { content: ''; position: absolute; left: 0; top: .8em; width: 10px; height: 1px; background: var(--copper-500); }
.legal-body address { font-style: normal; margin-bottom: 1em; }
.legal-body a { text-decoration: underline; text-underline-offset: 3px; }
.legal-body code { font-family: var(--f-mono); font-size: .85em; background: var(--concrete-100); padding: 1px 6px; }
.legal-card { background: #fff; border: 1px solid var(--line-light); padding: 24px 26px; margin-bottom: 1em; }
.legal-card address, .legal-card p:last-child { margin-bottom: 0; }
.placeholder { background: #fff1c2; color: #6b4e00; padding: 1px 6px; font-size: .92em; }
.legal-note { font-family: var(--f-mono); font-size: 12px; letter-spacing: .06em; color: var(--muted-light); }

/* ---------- 404 ---------- */
.notfound {
  min-height: 100vh; min-height: 100svh; display: grid; place-items: center; text-align: center; padding: calc(var(--header-h) + 40px) var(--gutter) 60px;
  background: var(--tiles), var(--wall-light) left / var(--split) 100% no-repeat, var(--wall-dark) right / calc(100% - var(--split)) 100% no-repeat;
}
.notfound .code { font-family: var(--f-seg); font-weight: 700; font-size: clamp(90px, 20vw, 260px); line-height: 1; color: #fff; mix-blend-mode: difference; }
.notfound h1 { font-family: var(--f-display); font-weight: 800; text-transform: uppercase; font-size: clamp(32px, 5vw, 64px); line-height: .95; color: #fff; mix-blend-mode: difference; margin: 32px 0 14px; }
.notfound p { color: #fff; mix-blend-mode: difference; margin-bottom: 32px; }
.notfound .btn { margin-top: 8px; }

/* ---------- Einblend-Animation ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }
.d1 { transition-delay: .08s; }
.d2 { transition-delay: .16s; }
.d3 { transition-delay: .24s; }
.d4 { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (forced-colors: active) {
  .btn, .tag, .ctrl, .faq-item, .chips label { border: 1px solid CanvasText; }
  .hero-word, .contact-title, .legal-hero h1, .notfound .code, .notfound h1 { mix-blend-mode: normal; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1360px) {
  .nav-links .nav-phone { display: none; }
}

@media (max-width: 1180px) {
  .footer-top { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .gallery li:nth-child(even) { margin-top: 0; }
  .gallery li:nth-child(3n+2) { margin-top: clamp(40px, 6vw, 80px); }
  .intro-facts { grid-template-columns: repeat(2, 1fr); }
  .intro-facts li:nth-child(3) { padding-left: 0; border-left: 0; }
  .intro-facts li:nth-child(n+3) { border-top: 1px solid var(--line-dark); margin-top: 28px; }
}

@media (max-width: 1100px) {
  .hero-actions { gap: 8px; }
  .hero-actions .btn { height: 44px; font-size: 15px; min-width: 0; gap: 12px; padding: 0 14px; }
  .hero-actions .btn svg { width: 16px; height: 16px; }
}

@media (max-width: 960px) {
  :root { --header-h: 68px; }
  body { font-size: 17px; }
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; inset: 0; z-index: 1; flex-direction: column; align-items: stretch; justify-content: center; gap: 0;
    background: var(--tiles), var(--graphite-950); padding: 96px var(--gutter) 32px;
    opacity: 0; visibility: hidden; transition: opacity .35s var(--ease), visibility .35s;
  }
  .nav-open .nav-links { opacity: 1; visibility: visible; }
  .nav-links li { border-bottom: 1px solid var(--line-dark); }
  .nav-links li.nav-cta { border: 0; }
  .nav-links a:not(.btn) { font-weight: 800; font-size: clamp(40px, 11vw, 64px); letter-spacing: 0; padding: 8px 0; color: #fff; }
  .nav-links a:not(.btn)::after { display: none; }
  .nav-links .btn, .nav-links .nav-phone { display: flex; margin: 24px 0 0; height: 54px; font-size: 18px; width: 100%; }
  .nav-links li.nav-cta + li.nav-cta .btn { margin-top: 10px; }
  .nav-open .nav-links li { animation: rise .5s var(--ease) both; }
  .nav-open .nav-links li:nth-child(2) { animation-delay: .04s; }
  .nav-open .nav-links li:nth-child(3) { animation-delay: .08s; }
  .nav-open .nav-links li:nth-child(4) { animation-delay: .12s; }
  .nav-open .nav-links li:nth-child(5) { animation-delay: .16s; }
  .nav-open .nav-links li:nth-child(6) { animation-delay: .2s; }
  body.nav-open { overflow: hidden; }
  .nav-open .site-header { background: transparent; border-color: transparent; -webkit-backdrop-filter: none; backdrop-filter: none; }
  .brand { position: relative; z-index: 2; }
  .brand img { height: 30px; }
  .site-header:not(.scrolled):not(.solid) .nav-toggle { border-color: rgba(11, 14, 17, .35); }
  .site-header:not(.scrolled):not(.solid) .nav-toggle span { background: var(--graphite-950); }
  .nav-open .site-header .nav-toggle { border-color: rgba(255, 255, 255, .3) !important; }
  .nav-open .site-header .nav-toggle span { background: #fff !important; }

  /* Hero wird gestapelt: helle Wand – Anlage – dunkle Wand */
  .hero { aspect-ratio: auto; container-type: normal; display: flex; flex-direction: column; }
  .hero::after { display: none; }
  .hero-side { position: static; }
  .hero-side--light {
    order: 1; padding: calc(var(--header-h) + 40px) var(--gutter) 28px;
    background: var(--tiles), var(--wall-light);
    display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 20px 16px;
  }
  .hero-media { order: 2; position: relative; height: min(100vw, 560px); background: linear-gradient(to bottom, #aeb0b1 0 50%, var(--graphite-950) 50%); }
  .hero-media img { object-position: 50% 58%; -webkit-mask-image: linear-gradient(to bottom, transparent, #000 16%, #000 80%, transparent); mask-image: linear-gradient(to bottom, transparent, #000 16%, #000 80%, transparent); }
  .hero-mist { display: none; }
  .hero-side--dark { order: 3; padding: 0 var(--gutter) 64px; align-items: stretch; }
  .hero-word { font-size: clamp(58px, 17.5vw, 128px); }
  .hero-kicker { font-size: 11px; margin-bottom: 14px; width: 100%; }
  .hero-kicker::before { width: 24px; }
  .hero-side--dark .hero-kicker { justify-content: flex-end; }
  .hero-actions { flex-direction: column; align-items: stretch; margin-top: 32px; }
  .hero-actions .btn { height: 54px; font-size: 18px; padding: 0 20px 0 22px; }
  .hero .ctrl { margin-top: 0; padding: 10px 12px 8px; gap: 0 8px; }
  .hero .ctrl-screen { font-size: clamp(24px, 7vw, 34px); }
  .hero .ctrl-unit { font-size: 12px; }
  .hero .ctrl-bar { margin-top: 8px; padding-top: 6px; gap: 10px; }
  .hero .ctrl-label { font-size: 9px; }
  .hero .ctrl-leds { gap: 6px; }
  .hero .ctrl-leds svg { width: 10px; height: 10px; }
  .hero-scroll { display: none; }

  .intro-grid { grid-template-columns: 1fr; gap: 8px; }
  .section-head { grid-template-columns: 1fr; }
  .section-index { text-align: left; }

  /* Kreislauf: Leitung links */
  .cycle-pipe { left: 28px; }
  .cycle-cap { justify-content: flex-start; }
  .cycle-step, .cycle-step:nth-child(even) {
    grid-template-columns: 56px minmax(0, 1fr); grid-template-areas: 'node media' 'node text'; column-gap: 22px; align-items: start;
  }
  .cycle-node { align-self: start; margin-top: -4px; }
  .gauge { width: 56px; height: 56px; }
  .cycle-media::before, .cycle-step:nth-child(even) .cycle-media::before { inset: 10px -10px -10px 10px; }
  .cycle-text, .cycle-step:nth-child(even) .cycle-text { justify-self: start; margin-top: 36px; max-width: none; }

  .experience-grid { grid-template-columns: 1fr; }
  .experience-aside { position: static; }
  .faq-grid { grid-template-columns: 1fr; }
  .faq-head { position: static; }

  .contact { background: var(--graphite-950); padding: 0 0 72px; }
  .contact-head, .contact-form { background: var(--tiles), #d5d6d6; }
  .contact-head { margin: 0 calc(-1 * var(--gutter)); padding: 96px var(--gutter) 48px; }
  .contact-title { color: var(--graphite-950); mix-blend-mode: normal; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 0 var(--gutter) 64px; }
  .contact-direct { padding: 64px var(--gutter) 0; }

  .legal-layout { grid-template-columns: 1fr; }
  .legal-toc { position: static; }
}

@media (max-width: 640px) {
  .gallery { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 14px; margin: 0 calc(-1 * var(--gutter)); padding: 0 var(--gutter) 8px; scrollbar-width: none; }
  .gallery::-webkit-scrollbar { display: none; }
  .gallery li { flex: 0 0 74%; scroll-snap-align: start; margin-top: 0 !important; }
  .intro-facts { grid-template-columns: 1fr; }
  .intro-facts li, .intro-facts li + li { padding: 24px 0 0; border-left: 0; margin-top: 0; }
  .intro-facts li + li { border-top: 1px solid var(--line-dark); margin-top: 24px; }
  .panel { padding: 26px 14px 16px; }
  .panel-displays { gap: 6px; }
  .panel .ctrl { padding: 10px 8px 8px; }
  .panel .ctrl-screen { font-size: 22px; }
  .panel .ctrl-leds { display: none; }
  .panel .ctrl-label { font-size: 9px; letter-spacing: .1em; }
  .specs li { grid-template-columns: 44px 1fr; padding: 26px 0; }
  .faq-item summary { grid-template-columns: 40px minmax(0, 1fr) 22px; }
  .faq-a { padding: 0 0 24px 48px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .btn { min-width: 0; }
  .lb-stage { padding: 0 8px 76px; }
  .lb-prev, .lb-next { top: auto; bottom: 12px; transform: none; }
  .lb-prev { left: calc(50% - 56px); }
  .lb-next { right: calc(50% - 56px); }
}