/* Böhler Elektrotechnik — Entwurf HELIO
   Farbe aus dem Betrieb: das Blau der Busse und der Fassade, das Gelb aus „ELEKTROTECHNIK“ im Logo.
   Die fünf Aderfarben (braun, schwarz, grau, blau, grün-gelb) gehören nur der Leitung. */
:root{
  --papier: oklch(0.985 0.004 250);
  --papier-2: oklch(0.955 0.008 250);
  --tinte: oklch(0.2 0.03 255);
  --tinte-2: oklch(0.45 0.025 255);
  --linie: oklch(0.88 0.01 250);
  --blau: oklch(0.45 0.16 255);        /* Bus-Blau */
  --blau-tief: oklch(0.3 0.12 258);
  --gelb: oklch(0.85 0.17 90);         /* Logo-Gelb */
  --kupfer: oklch(0.66 0.13 55);
  --a-l1: oklch(0.42 0.07 50);         /* braun */
  --a-l2: oklch(0.22 0 0);             /* schwarz */
  --a-l3: oklch(0.62 0.01 250);        /* grau */
  --a-n:  oklch(0.55 0.16 250);        /* blau */
  --a-pe-g: oklch(0.6 0.16 145);
  --a-pe-y: oklch(0.86 0.17 95);
  --rad: 18px;
  --bahn: min(1240px, 100% - 2*clamp(20px, 5vw, 64px));
  --sans: "Geist", ui-sans-serif, system-ui, sans-serif;
  --mono: "Geist 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}
:focus-visible{outline:2px solid var(--gelb);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/1.3 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--tinte-2)}
.hell{color:#fff}
.label.hell{color:oklch(1 0 0 / .7)}
.leise{color:var(--tinte-2);font-weight:400}
.klein{font-size:14px}
.titel{font-weight:600;font-size:clamp(40px,6.4vw,92px);line-height:.98;letter-spacing:-.035em;margin:14px 0 22px;text-wrap:balance}
.vorspann{font-size:clamp(18px,1.6vw,22px);line-height:1.45;color:var(--tinte-2);max-width:34ch}
.groß{font-size:clamp(22px,2.4vw,34px);line-height:1.15;font-weight:500;letter-spacing:-.02em}

.knopf{display:inline-flex;align-items:center;gap:10px;background:var(--blau);color:#fff;padding:14px 22px;border-radius:999px;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-hell{background:oklch(1 0 0 / .9);color:var(--tinte);box-shadow:inset 0 0 0 1px var(--linie)}
.knopf-hell:hover{background:#fff}
.knopf-klein{padding:9px 16px;font-size:14px}
.knopf-gross{width:100%;justify-content:center;padding:18px 22px;font-size:17px}

.entwurf{position:fixed;left:50%;bottom:14px;translate:-50% 0;z-index:60;font:500 11px/1 var(--mono);letter-spacing:.06em;background:oklch(0.2 0.03 255 / .82);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:14px clamp(20px,4vw,48px);background:oklch(0.985 0.004 250 / .72);backdrop-filter:saturate(1.6) blur(18px);-webkit-backdrop-filter:saturate(1.6) blur(18px);border-bottom:1px solid oklch(0.88 0.01 250 / .6)}
.marke{display:flex;align-items:baseline;gap:8px}
.marke-name{font-weight:700;font-size:22px;letter-spacing:-.03em;color:var(--blau)}
.marke-zusatz{font:500 10px var(--mono);letter-spacing:.2em;text-transform:uppercase;color:oklch(0.62 0.15 85)}
.nav{display:flex;gap:28px;font-size:15px}
.nav a{color:var(--tinte-2);transition:color .2s}
.nav a:hover{color:var(--tinte)}

/* Die Leitung */
.leitung{position:fixed;left:clamp(8px,1.6vw,22px);top:0;bottom:0;width:30px;z-index:40;pointer-events:none}
.leitung-svg{width:100%;height:100%;overflow:visible}
.ader{fill:none;stroke-width:3.2;stroke-linecap:round;stroke-dasharray:1000;stroke-dashoffset:1000;vector-effect:non-scaling-stroke}
.a-l1{stroke:var(--a-l1)}.a-l2{stroke:var(--a-l2)}.a-l3{stroke:var(--a-l3)}.a-n{stroke:var(--a-n)}
.a-pe-g{stroke:var(--a-pe-g)}.a-pe-y{stroke:var(--a-pe-y);stroke-dasharray:6 6 1000}
.leitung-stand{position:absolute;left:0;bottom:64px;font:500 11px var(--mono);color:var(--tinte-2);white-space:nowrap;writing-mode:vertical-rl;rotate:180deg;letter-spacing:.1em}
.leitung-stand .volt{color:var(--kupfer);font-weight:600}
body.unter-strom .leitung-stand .volt{color:oklch(0.62 0.15 85)}
.ader-punkt{display:inline-block;width:12px;height:12px;border-radius:50%;margin-bottom:14px}
.a-l1-bg{background:var(--a-l1)}.a-l2-bg{background:var(--a-l2)}

/* Klemmen: jede Sektion bekommt beim Erreichen ihre Ader */
[data-klemme]{position:relative}
[data-klemme]::before{content:attr(data-klemme);position:absolute;left:clamp(30px,3.4vw,52px);top:clamp(80px,10vw,140px);font:600 10px var(--mono);letter-spacing:.08em;color:var(--tinte-2);padding:4px 6px;border:1px solid var(--linie);border-radius:6px;background:var(--papier);opacity:0;translate:-6px 0;transition:opacity .5s,translate .5s var(--ease),color .5s,border-color .5s}
[data-klemme].angeklemmt::before{opacity:1;translate:0 0;color:var(--kupfer);border-color:var(--kupfer)}

/* 1 · Kopfbild */
.held{height:340vh;position:relative}
.held-buehne{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;background:var(--blau-tief)}
.held-film{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.held-schleier{position:absolute;inset:0;background:linear-gradient(180deg,oklch(0.2 0.05 255 / .5),oklch(0.2 0.05 255 / 0) 40%,oklch(0.2 0.05 255 / 0) 55%,oklch(0.2 0.05 255 / .7))}
.held-text{position:absolute;left:clamp(48px,7vw,110px);right:20px;top:clamp(96px,16vh,170px);color:#fff}
.held-text .label{color:oklch(1 0 0 / .8)}
.riesig{font-weight:600;font-size:clamp(64px,13vw,220px);line-height:.86;letter-spacing:-.055em;margin-top:14px}
.riesig .z{display:inline-block;will-change:transform,opacity}
.held-ende{position:absolute;left:clamp(48px,7vw,110px);right:20px;bottom:clamp(60px,10vh,110px);color:#fff;opacity:0;translate:0 24px}
.held-ende .reihe{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
.scrollhinweis{position:absolute;right:clamp(20px,4vw,48px);bottom:28px;color:oklch(1 0 0 / .75)}
.scrollhinweis::after{content:"";display:block;width:1px;height:42px;background:currentColor;margin:10px auto 0;animation:tropf 1.8s var(--ease) infinite;transform-origin:top}
@keyframes tropf{0%{scale:1 0}50%{scale:1 1}100%{scale:1 1;opacity:0}}

/* 2 · Stellen */
.stellen{padding:clamp(100px,14vw,180px) 0 clamp(70px,9vw,120px)}
.stellen-film{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:16/8}
.team-video{width:100%;height:100%;object-fit:cover}
.stellen-film-text{position:absolute;left:24px;bottom:20px}
.stellen-raster{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(16px,2vw,28px)}
.stelle{background:#fff;border-radius:var(--rad);padding:clamp(26px,3vw,44px);display:flex;flex-direction:column;gap:26px;box-shadow:0 1px 0 var(--linie),0 30px 60px -40px oklch(0.3 0.08 255 / .35)}
.stelle h3{font-size:clamp(28px,2.8vw,40px);line-height:1.05;letter-spacing:-.03em;font-weight:600;margin-top:8px}
.stelle h3 .leise{display:block;font-size:.6em;letter-spacing:-.015em;margin-top:6px}
.stelle-fakt{margin-top:16px;color:var(--tinte-2)}
.stelle-fakt b{color:var(--tinte)}
.liste{list-style:none;display:grid;gap:12px;flex:1}
.liste li{padding-left:26px;position:relative}
.liste li::before{content:"";position:absolute;left:0;top:.62em;width:14px;height:2px;background:var(--kupfer);border-radius:2px}
.stelle .knopf{align-self:flex-start}

/* 3 · Bewerben */
.bewerben{background:var(--papier-2);padding:clamp(90px,12vw,160px) 0}
.bewerben-raster{display:grid;grid-template-columns:1fr minmax(0,520px);gap:clamp(40px,6vw,100px);align-items:start}
.schritte{list-style:none;display:grid;gap:14px;margin-top:40px}
.schritte li{display:flex;gap:16px;align-items:center;color:var(--tinte)}
.schritte span{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;border:1px solid var(--linie);background:#fff;color:var(--kupfer)}
.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 0.08 255 / .4)}
.wahl{border:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.wahl legend{margin-bottom:10px}
.wahl label{position:relative}
.wahl input{position:absolute;opacity:0}
.wahl span{display:block;text-align:center;padding:12px 6px;border-radius:12px;border:1px solid var(--linie);font-size:15px;cursor:pointer;transition:all .2s}
.wahl input:checked+span{background:var(--tinte);color:#fff;border-color:var(--tinte)}
.wahl input:focus-visible+span{outline:2px solid var(--gelb);outline-offset:2px}
.feld{display:grid;gap:8px}
.feld input{width:100%;padding:14px 16px;border-radius:12px;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:oklch(0.6 0.2 25)}
.hinweis{color:var(--tinte-2);text-align:center}
.hinweis.ok{color:oklch(0.5 0.14 150)}

/* 4 · Leistungen */
.leistungen{padding:clamp(100px,13vw,170px) 0}
.kacheln{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(12px,1.4vw,18px);margin-top:clamp(36px,5vw,64px)}
.kachel{position:relative;border-radius:var(--rad);overflow:hidden;aspect-ratio:4/5;background:var(--papier-2);isolation:isolate}
.kachel.gross{grid-column:span 2;grid-row:span 2;aspect-ratio:auto}
.kachel img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:scale .9s var(--ease)}
.kachel::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,oklch(0.18 0.04 255 / .78));z-index:1}
.kachel:hover img{scale:1.05}
.kachel-text{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;color:#fff;display:grid;gap:4px}
.kachel-text .label{color:oklch(1 0 0 / .7)}
.kachel-text b{font-weight:600;font-size:clamp(17px,1.4vw,21px);line-height:1.15;letter-spacing:-.01em}
.kachel.gross .kachel-text b{font-size:clamp(26px,2.6vw,38px);letter-spacing:-.03em}
.siegel{display:flex;align-items:center;gap:24px;margin-top:clamp(40px,5vw,64px);padding-top:32px;border-top:1px solid var(--linie)}
.siegel img{width:96px;height:auto;flex:none}
.siegel p{max-width:52ch;color:var(--tinte-2)}

/* 5 · 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:600;font-size:clamp(46px,6vw,96px);line-height:.9;letter-spacing:-.05em;font-variant-numeric:tabular-nums}
.zahl-wort{font-size:clamp(34px,4.2vw,64px);color:var(--gelb)}
.zahlen .label{color:oklch(1 0 0 / .72)}
.zahlen[data-klemme]::before{background:var(--blau);border-color:oklch(1 0 0 / .3);color:oklch(1 0 0 / .7)}

/* 6 · Ort */
.ort{padding:clamp(100px,13vw,170px) 0}
.ort-bild{width:calc(100% - 2*clamp(20px,5vw,64px));max-width:1440px;margin:0 auto;border-radius:calc(var(--rad)*1.4);overflow:hidden;aspect-ratio:16/8.4}
.ort-bild img{width:100%;height:115%;object-fit:cover;will-change:transform}
.ort-text{margin-top:clamp(40px,5vw,70px)}
.ort-text .knopf{margin-top:28px}

/* 7 · Kontakt */
.kontakt{background:var(--tinte);padding:clamp(100px,13vw,170px) 0;transition:background 1.2s var(--ease)}
.kontakt .vorspann{color:oklch(1 0 0 / .72)}
.kontakt-raster{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,100px);align-items:end}
.kontakt-wege{display:grid;gap:12px}
.weg{display:grid;gap:4px;padding:22px 24px;border-radius:var(--rad);background:oklch(1 0 0 / .06);color:#fff;transition:background .3s}
.weg:hover{background:oklch(1 0 0 / .12)}
.weg .label{color:oklch(1 0 0 / .6)}
.weg b{font-weight:500;font-size:clamp(20px,2vw,28px);letter-spacing:-.02em;overflow-wrap:anywhere}
body.unter-strom .kontakt .titel{color:var(--gelb);text-shadow:0 0 40px oklch(0.85 0.17 90 / .45)}
.kontakt .titel{transition:color .8s,text-shadow .8s}

.fuss{padding:40px 0 90px;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:900px){
  .nav{display:none}
  .stellen-raster,.bewerben-raster,.kontakt-raster,.fuss-raster{grid-template-columns:1fr}
  .kacheln{grid-template-columns:repeat(2,minmax(0,1fr))}
  .zahlen-raster{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:36px}
  .stellen-film{aspect-ratio:4/5}
  .ort-bild{aspect-ratio:4/3}
  .held-text,.held-ende{left:44px}
  .leitung{width:10px;left:5px}
  :root{--bahn:min(1240px,100% - 56px)}
  .stellen-film,.ort-bild{width:calc(100% - 56px)}
  .leitung-stand{display:none}
  [data-klemme]::before{display:none}
  .mobil-knopf{display:flex;position:fixed;right:14px;bottom:14px;z-index:55;box-shadow:0 10px 30px -10px oklch(0.3 0.12 258 / .6)}
  .entwurf{left:14px;translate:0 0;bottom:22px;font-size:10px}
}
@media (max-width:520px){
  body{font-size:16px}
  .kopf .knopf-klein{display:none}
  .wahl{grid-template-columns:1fr}
  .kachel.gross{grid-column:span 2;grid-row:auto;aspect-ratio:4/3}
  .entwurf{display:none}
}
@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{display:none}