/* Summer Installationstechnik — Entwurf HELIO
   Farbe aus dem Betrieb: das Logo-Blau #223881 (gemessen) und das Rot ihrer Kessel,
   Kugelhähne und Manometer-Zeiger (#e30613). Das gekippte Quadrat aus dem Logo ist das Aufzählungszeichen.
   Schrift: Fira Sans — humanistisch wie ihre Frutiger, Logo-Schnitt fett + leicht. */
:root{
  --papier: oklch(0.985 0.003 265);
  --papier-2: oklch(0.955 0.008 265);
  --tinte: oklch(0.22 0.04 268);
  --tinte-2: oklch(0.46 0.03 268);
  --linie: oklch(0.89 0.01 265);
  --blau: oklch(0.36 0.13 268);          /* #223881 */
  --blau-tief: oklch(0.26 0.1 268);
  --blau-hell: oklch(0.93 0.025 268);
  --rot: oklch(0.58 0.235 28);           /* #e30613 */
  --rot-tief: oklch(0.5 0.21 28);
  --gruen: oklch(0.6 0.15 150);          /* grüner Bereich am Manometer */
  --rad: 16px;
  --bahn: min(1240px, 100% - 2*clamp(20px, 5vw, 64px));
  --sans: "Fira Sans", ui-sans-serif, system-ui, sans-serif;
  --mono: "Fira Mono", ui-monospace, monospace;
  --ease: cubic-bezier(.2,.7,.1,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--papier);color:var(--tinte);font:400 17px/1.55 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:clip}
img,video,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
em{font-style:italic;font-weight:300}
:focus-visible{outline:2px solid var(--rot);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--tinte);color:#fff;padding:10px 14px;border-radius:10px}
.skip:focus{left:8px}

.bahn{width:var(--bahn);margin-inline:auto}
.label{font:500 12px/1.35 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--tinte-2)}
.hell{color:#fff}
.label.hell{color:oklch(1 0 0 / .74)}
.leise{color:var(--tinte-2);font-weight:300}
.klein{font-size:14px;line-height:1.5}
.titel{font-weight:700;font-size:clamp(40px,6.2vw,90px);line-height:.98;letter-spacing:-.03em;margin:14px 0 0;text-wrap:balance}
.titel em{color:var(--rot)}
.vorspann{font-size:clamp(18px,1.55vw,21px);line-height:1.5;color:var(--tinte-2);max-width:40ch;font-weight:300}
.gross{font-size:clamp(26px,3vw,44px);line-height:1.08;font-weight:700;letter-spacing:-.025em}
.gross em{font-weight:300}

.knopf{display:inline-flex;align-items:center;gap:10px;background:var(--blau);color:#fff;padding:14px 22px;border-radius:10px;font-weight:500;font-size:16px;transition:background .25s,transform .25s var(--ease);border:0;cursor:pointer}
.knopf:hover{background:var(--blau-tief)}
.knopf:active{transform:scale(.97)}
.knopf-rot{background:var(--rot)}
.knopf-rot:hover{background:var(--rot-tief)}
.knopf-hell{background:#fff;color:var(--tinte);box-shadow:inset 0 0 0 1px var(--linie)}
.knopf-hell:hover{background:var(--blau-hell)}
.knopf-weiss{background:#fff;color:var(--blau)}
.knopf-weiss:hover{background:var(--blau-hell)}
.knopf-glas{background:oklch(1 0 0 / .14);color:#fff;box-shadow:inset 0 0 0 1px oklch(1 0 0 / .35);backdrop-filter:blur(10px)}
.knopf-glas:hover{background:oklch(1 0 0 / .24)}
.knopf-klein{padding:9px 15px;font-size:14px}
.knopf-gross{width:100%;justify-content:center;padding:18px 22px;font-size:17px}
.reihe{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}

.entwurf{position:fixed;left:50%;bottom:14px;translate:-50% 0;z-index:60;font:500 11px/1 var(--mono);letter-spacing:.05em;background:oklch(0.22 0.04 268 / .84);color:#fff;padding:8px 12px;border-radius:999px;backdrop-filter:blur(8px);white-space:nowrap}

/* Kopfleiste */
.kopf{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px clamp(20px,4vw,48px);background:oklch(0.985 0.003 265 / .76);backdrop-filter:saturate(1.6) blur(18px);-webkit-backdrop-filter:saturate(1.6) blur(18px);border-bottom:1px solid oklch(0.89 0.01 265 / .6)}
.marke{display:flex;align-items:center;gap:10px}
.marke img{width:40px;height:40px}
.marke-text{display:grid;line-height:1.05}
.marke-text b{font-weight:700;font-size:19px;color:var(--blau);letter-spacing:-.01em}
.marke-text span{font-weight:300;font-size:13px;color:var(--blau)}
.nav{display:flex;gap:30px;font-size:15px}
.nav a{color:var(--tinte-2);transition:color .2s}
.nav a:hover{color:var(--blau)}

/* Das Manometer */
.mano{position:fixed;left:clamp(14px,2vw,28px);bottom:clamp(14px,3vh,28px);z-index:45;display:grid;justify-items:center;gap:6px;pointer-events:none;transition:opacity .4s}
.mano-svg{width:clamp(78px,7.4vw,108px);height:auto;filter:drop-shadow(0 14px 22px oklch(0.2 0.05 268 / .28))}
.mano-ring{fill:oklch(0.2 0.01 268)}
.mano-blatt{fill:#fff}
.mano-gruen{fill:none;stroke:var(--gruen);stroke-width:7}
.mano-skala line{stroke:var(--tinte);stroke-width:1.2}
.mano-skala line.lang{stroke-width:2}
.mano-skala text{font:600 10px var(--sans);fill:var(--tinte)}
.mano-bar{font:500 8px var(--sans);fill:var(--tinte-2)}
.mano-zeiger{transform-origin:60px 60px;transform:rotate(-135deg)}
.mano-zeiger path{fill:var(--rot)}
.mano-nabe{fill:var(--rot)}
.mano-stand{font:500 11px var(--mono);letter-spacing:.04em;color:var(--tinte-2);background:oklch(1 0 0 / .86);padding:4px 8px;border-radius:999px;backdrop-filter:blur(6px);white-space:nowrap}
.mano-wert{color:var(--tinte);font-weight:600}
body.dicht .mano-stand{background:var(--gruen);color:#fff}
body.dicht .mano-wert{color:#fff}
body.im-held .mano{opacity:0}

/* Abschnitte bekommen beim Erreichen ihren Druck als kleine Marke */
[data-druck]{position:relative}

/* 1 · Kopf */
.held{height:340vh;position:relative}
.held-buehne{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;background:oklch(0.3 0.02 60)}
.held-film{position:absolute;inset:0;width:100%;height:100%}
.held-schleier{position:absolute;inset:0;background:linear-gradient(180deg,oklch(0.18 0.04 268 / .25),transparent 22%,transparent 42%,oklch(0.2 0.05 268 / .78))}
.held-text{position:absolute;left:clamp(24px,7vw,110px);right:20px;bottom:clamp(70px,12vh,130px)}
.riesig{font-weight:800;font-size:clamp(68px,14vw,230px);line-height:.84;letter-spacing:-.05em;color:#fff;margin-top:16px}
.riesig .z{display:inline-block;will-change:transform,opacity}
.held-unter{margin-top:22px;font-size:clamp(18px,1.7vw,24px);font-weight:300;max-width:30ch}
.held-ende{position:absolute;left:clamp(24px,7vw,110px);right:20px;bottom:clamp(64px,11vh,120px);opacity:0;translate:0 24px}
.scrollhinweis{position:absolute;right:clamp(20px,4vw,48px);bottom:28px;text-align:center}
.scrollhinweis::after{content:"";display:block;width:6px;height:9px;margin:12px auto 0;background:currentColor;border-radius:50% 50% 50% 50% / 60% 60% 40% 40%;animation:tropfen 1.6s cubic-bezier(.5,0,.9,.4) infinite}
@keyframes tropfen{0%{translate:0 -6px;opacity:0}20%{opacity:1}100%{translate:0 34px;opacity:0}}

/* Kopfzeile je Abschnitt: Titel links, Vorspann rechts */
.kopfzeile{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:clamp(24px,5vw,80px);align-items:end}

/* 2 · Stellen */
.stellen{padding:clamp(100px,14vw,180px) 0 clamp(70px,9vw,120px)}
.team-bild{position:relative;width:calc(100% - 2*clamp(20px,5vw,64px));max-width:1440px;margin:clamp(40px,6vw,80px) auto;border-radius:calc(var(--rad)*1.4);overflow:hidden;aspect-ratio:3/2;background:var(--papier-2)}
.team-bild img{width:100%;height:100%;object-fit:cover;object-position:50% 50%}
.team-bild figcaption{position:absolute;left:22px;bottom:18px}
.team-bild::after{content:"";position:absolute;inset:auto 0 0 0;height:40%;background:linear-gradient(transparent,oklch(0.18 0.04 268 / .55))}
.team-bild figcaption{z-index:1}
.stellen-raster{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(12px,1.4vw,20px)}
.stelle{background:#fff;border-radius:var(--rad);padding:clamp(22px,2.2vw,32px);display:flex;flex-direction:column;gap:18px;box-shadow:0 1px 0 var(--linie),0 30px 60px -44px oklch(0.3 0.1 268 / .4)}
.stelle h3{font-size:clamp(22px,1.9vw,28px);line-height:1.08;letter-spacing:-.02em;font-weight:700}
.stelle h3 .leise{display:block;font-size:.62em;margin-top:6px;letter-spacing:0}
.stelle-blau{background:var(--blau);box-shadow:none}
.stelle-blau .klein{flex:1;color:oklch(1 0 0 / .78)}
.punkt{display:inline-block;width:9px;height:9px;background:var(--blau);rotate:-14deg;margin-right:10px;vertical-align:1px}
.liste{list-style:none;display:grid;gap:10px;flex:1;font-size:15.5px;line-height:1.45}
.liste li{padding-left:20px;position:relative}
.liste li::before{content:"";position:absolute;left:0;top:.5em;width:8px;height:8px;background:var(--rot);rotate:-14deg}
.stelle .knopf{align-self:flex-start}
.vorteile{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:clamp(36px,4vw,56px);padding-top:28px;border-top:1px solid var(--linie)}
.vorteile p{display:grid;gap:4px}
.vorteile b{font-weight:600;line-height:1.25}
.vorteile span{color:var(--tinte-2);font-size:14.5px;font-weight:300}

/* 3 · Bewerben */
.bewerben{background:var(--blau-hell);padding:clamp(90px,12vw,160px) 0}
.bewerben-raster{display:grid;grid-template-columns:1fr minmax(0,540px);gap:clamp(40px,6vw,100px);align-items:start}
.bewerben .vorspann{margin-top:22px}
.schritte{list-style:none;display:grid;gap:14px;margin-top:40px}
.schritte li{display:flex;gap:16px;align-items:center}
.schritte span{display:inline-grid;place-items:center;width:36px;height:36px;background:#fff;color:var(--blau);font:600 12px var(--mono);rotate:-14deg}
.formular{background:#fff;border-radius:calc(var(--rad)*1.3);padding:clamp(22px,3vw,36px);display:grid;gap:18px;box-shadow:0 40px 80px -50px oklch(0.3 0.1 268 / .45)}
.wahl{border:0;display:flex;flex-wrap:wrap;gap:8px}
.wahl legend{margin-bottom:10px;width:100%}
.wahl label{position:relative;flex:1 1 auto}
.wahl input{position:absolute;opacity:0}
.wahl span{display:block;text-align:center;padding:11px 14px;border-radius:10px;border:1px solid var(--linie);font-size:15px;cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.wahl input:checked+span{background:var(--blau);color:#fff;border-color:var(--blau)}
.wahl input:focus-visible+span{outline:2px solid var(--rot);outline-offset:2px}
.feld{display:grid;gap:8px}
.feld input{width:100%;padding:14px 16px;border-radius:10px;border:1px solid var(--linie);background:var(--papier);font-size:17px;transition:border-color .2s,background .2s}
.feld input:focus{outline:0;border-color:var(--blau);background:#fff}
.feld input[type=file]{padding:11px 12px;font-size:14px}
.feld.fehler input{border-color:var(--rot)}
.hinweis{color:var(--tinte-2);text-align:center}
.hinweis.ok{color:oklch(0.48 0.13 150)}

/* 4 · Lehre */
.lehre{display:grid;grid-template-columns:1fr 1fr;min-height:100vh;background:#fff}
.lehre-bild{position:relative;overflow:hidden;min-height:420px}
.lehre-bild img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transform-origin:50% 60%;will-change:transform}
.lehre-text{padding:clamp(70px,9vw,140px) clamp(24px,6vw,100px);display:flex;flex-direction:column;justify-content:center}
.lehre-text .vorspann{margin-top:22px}
.fakten{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:36px 0 18px}
.fakten div{border-top:2px solid var(--blau);padding-top:12px}
.fakten dt{font-weight:800;font-size:clamp(40px,4vw,60px);line-height:1;letter-spacing:-.04em;color:var(--blau)}
.fakten dd{font-size:14px;color:var(--tinte-2);margin-top:6px}
.lehre-text>.klein{color:var(--tinte-2)}

/* 5 · Leistungen */
.leistungen{padding:clamp(100px,13vw,170px) 0}
.bereiche{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-rows:clamp(220px,22vw,320px);gap:clamp(10px,1.2vw,16px);margin-top:clamp(36px,5vw,64px)}
.bereich{position:relative;border-radius:var(--rad);overflow:hidden;background:var(--papier-2);isolation:isolate}
.bereich-gross{grid-column:span 2;grid-row:span 2}
.bereich img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:scale .9s var(--ease)}
.bereich::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,oklch(0.16 0.04 268 / .82));z-index:1}
.bereich:hover img{scale:1.05}
.bereich-text{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;color:#fff;display:grid;gap:6px}
.bereich-text b{font-weight:700;font-size:clamp(19px,1.6vw,24px);line-height:1.12;letter-spacing:-.015em}
.bereich-gross .bereich-text{left:clamp(20px,2.4vw,34px);bottom:clamp(18px,2.4vw,30px)}
.bereich-gross .bereich-text b{font-size:clamp(28px,3vw,46px);letter-spacing:-.03em;max-width:16ch}
.bereich-text .klein{color:oklch(1 0 0 / .8)}

/* 6 · Leute */
.leute{padding:0 0 clamp(100px,13vw,170px)}
.leute-reihe{display:flex;gap:clamp(10px,1.2vw,16px);overflow-x:auto;scroll-snap-type:x mandatory;padding:clamp(36px,5vw,64px) clamp(20px,5vw,64px) 10px;scrollbar-width:thin}
.leute-reihe img{flex:0 0 clamp(170px,17vw,240px);aspect-ratio:2/3;object-fit:cover;border-radius:var(--rad);scroll-snap-align:start;background:var(--papier-2)}

/* 7 · Zahlen */
.zahlen{background:var(--blau);color:#fff;padding:clamp(70px,9vw,120px) 0}
.zahlen-raster{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.zahlen-raster>div{display:grid;gap:10px;border-top:1px solid oklch(1 0 0 / .25);padding-top:20px}
.zahl{font-weight:800;font-size:clamp(46px,6vw,96px);line-height:.9;letter-spacing:-.05em;font-variant-numeric:tabular-nums}
.zahl-wort{color:oklch(0.82 0.1 25)}
.zahlen .label{color:oklch(1 0 0 / .74)}

/* 8 · Ort */
.ort{position:relative;min-height:100vh;display:flex;align-items:flex-end;overflow:hidden;background:var(--blau-tief)}
.ort-bild{position:absolute;inset:0}
.ort-bild img{width:100%;height:118%;object-fit:cover;will-change:transform}
.ort::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,oklch(0.16 0.04 268 / .1),oklch(0.16 0.04 268 / .75))}
.ort-text{position:relative;z-index:1;padding:clamp(90px,12vw,160px) 0 clamp(60px,8vw,110px)}
.ort-text .vorspann{color:oklch(1 0 0 / .82);margin-top:22px}

/* 9 · Kontakt */
.kontakt{background:var(--tinte);padding:clamp(100px,13vw,170px) 0}
.kontakt .vorspann{color:oklch(1 0 0 / .74);margin-top:22px}
.kontakt .titel em{color:oklch(0.78 0.14 150);transition:color .8s}
.kontakt-raster{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,100px);align-items:end}
.kontakt-wege{display:grid;gap:10px}
.weg{display:grid;gap:4px;padding:20px 24px;border-radius:var(--rad);background:oklch(1 0 0 / .07);color:#fff;transition:background .3s}
.weg:hover{background:oklch(1 0 0 / .13)}
.weg .label{color:oklch(1 0 0 / .62)}
.weg b{font-weight:500;font-size:clamp(20px,2vw,28px);letter-spacing:-.015em;overflow-wrap:anywhere}
.weg-rot{background:var(--rot)}
.weg-rot:hover{background:var(--rot-tief)}
.weg-rot .label{color:oklch(1 0 0 / .85)}

.fuss{padding:40px 0 100px;font-size:14px;color:var(--tinte-2)}
.fuss-raster{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.fuss b{color:var(--tinte)}

.mobil-knopf{display:none}

/* Einblenden */
.auf{opacity:0;translate:0 28px;transition:opacity .9s var(--ease),translate .9s var(--ease)}
.auf.da{opacity:1;translate:0 0}

@media (max-width:1100px){
  .stellen-raster{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .nav{display:none}
  .kopfzeile,.bewerben-raster,.kontakt-raster,.fuss-raster,.lehre{grid-template-columns:1fr}
  .vorteile{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bereiche{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:220px}
  .zahlen-raster{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:36px}
  .team-bild{aspect-ratio:4/3}
  .lehre{min-height:0}
  .lehre-bild{aspect-ratio:4/3;min-height:0}
  .mano{left:12px;bottom:76px}
  .mano-svg{width:52px}
  .mano-stand{font-size:10px}
  .mobil-knopf{display:flex;position:fixed;right:14px;bottom:14px;z-index:55;box-shadow:0 10px 30px -10px oklch(0.4 0.2 28 / .6)}
  .entwurf{left:14px;translate:0 0;bottom:22px;font-size:10px}
}
@media (max-width:560px){
  body{font-size:16px}
  .kopf .knopf-klein{display:none}
  .stellen-raster,.vorteile{grid-template-columns:1fr}
  .bereich-gross{grid-row:span 1}
  .fakten{gap:10px}
  .entwurf{display:none}
  .mano{bottom:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .auf{opacity:1;translate:0 0}
  .held{height:100vh}
  .held-ende{opacity:1;translate:0 0}
}

.mailbild .entwurf,.mailbild .scrollhinweis,.mailbild .mano{display:none}