/* Gemeinsamer Website-Header (Logo, Menü, Button „Erstgespräch anfragen“).
   Eine Datei für ALLE Seiten mit Menü: Startseite und Unterseiten sehen damit exakt gleich aus.
   Regel Alexander 27.09.2026: Jeder Header ist derselbe wie auf der Startseite.
   Werte übernommen aus dem Startseiten-Header (Stand 27.09.2026, ausgemessen per Computed Style).
   Änderungen am Header NUR hier, nie in startseite-v2-design-2.css, website-entwuerfe.css oder in einer Seite.
   Markup (identisch auf jeder Seite, nur Link-Ziele unterscheiden sich): <header class="site-header"><div class="wrap">Logo · nav · a.header-cta</div><button class="menu-toggle">…</button></header>
   Menü-Skript: website-entwuerfe.js (Abschnitt „Header-Menü“). */

.site-header{position:sticky;top:0;z-index:20;box-sizing:border-box;width:100%;margin:0;padding:18px 28px;background:#ffffffed;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:0;border-bottom:1px solid #e9edf1;box-shadow:none;color:#16283f;font-family:Inter,system-ui,sans-serif;font-size:16px;font-weight:400;line-height:1.65;text-align:left}
.site-header *,.site-header *::before,.site-header *::after{box-sizing:border-box}
.site-header .wrap{max-width:1240px;width:auto;height:auto;margin:0 auto;padding:0;display:flex;align-items:center;justify-content:space-between;gap:16px}
.site-header .wrap>a:first-child{display:block;margin:0;padding:0;color:inherit;text-decoration:none;line-height:inherit}
.site-header .logo{display:block;width:170px;height:auto;max-width:100%;margin:0}
.site-header nav{display:flex;align-items:center;gap:21px;margin:0;padding:0;font-size:13px;font-weight:500;color:#516072}
.site-header nav a,.site-header nav summary{margin:0;padding:0;font-family:'Plus Jakarta Sans',sans-serif;font-size:14.5px;line-height:20.8px;font-weight:500;letter-spacing:0;text-decoration:none;text-transform:none;white-space:normal;color:#1d2b3f;background:transparent;border:0;border-radius:0;cursor:pointer;transition:color .18s ease,background-color .18s ease}
.site-header nav a:hover,.site-header nav a:focus-visible,.site-header nav summary:hover,.site-header nav summary:focus-visible{color:#245eea}
.site-header .content-menu{position:relative;margin:0;padding:0;background:transparent;border:0;border-radius:0}
.site-header .content-menu summary{position:static;display:flex;align-items:center;gap:8px;list-style:none}
.site-header .content-menu summary::-webkit-details-marker{display:none}
.site-header .content-menu summary>span{display:block;width:6px;height:6px;margin:0;padding:0;border:0;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-2px) rotate(45deg);font-size:0;transition:transform .18s}
.site-header .content-menu[open] summary>span{transform:translateY(1px) rotate(225deg)}
.site-header .content-links{position:absolute;top:34px;left:-18px;right:auto;display:flex;flex-direction:column;gap:3px;width:310px;min-width:0;margin:0;padding:10px;background:#fff;border:1px solid #e2e7ed;border-radius:12px;box-shadow:0 18px 35px #20334e17}
.site-header .content-links a{padding:11px 10px;font-size:13px}
.site-header .content-links a:hover{background:#eef3f9;border-radius:6px}
.site-header .header-cta{position:relative;display:flex;align-items:center;min-height:48px;margin:0;padding:13px 20px;font-family:'Plus Jakarta Sans',sans-serif;font-size:14px;font-weight:700;line-height:1.65;letter-spacing:0;text-decoration:none;text-shadow:none;text-transform:none;white-space:normal;color:#fff;background:linear-gradient(115deg,#f77b20,#e85e08);border:0;border-radius:12px;box-shadow:0 6px 18px #d75a151c;overflow:hidden;outline-offset:5px;transition:box-shadow .2s}
.site-header .header-cta:hover{color:#fff;background:linear-gradient(115deg,#ff872d,#f36a10);box-shadow:0 9px 24px #d75a152c;transform:translateY(-1px)}
.site-header .header-cta:active{transform:translateY(1px)}
.site-header .header-cta::before{content:'';position:static;display:inline-block;width:20px;height:20px;margin-right:.55em;flex-shrink:0;vertical-align:-3px;transform:none;inset:auto;background:currentColor;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 3l2.5 6.5L18 12l-6.5 2.5L9 21l-2.5-6.5L0 12l6.5-2.5ZM19 0l1.35 3.65L24 5l-3.65 1.35L19 10l-1.35-3.65L14 5l3.65-1.35Z'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 3l2.5 6.5L18 12l-6.5 2.5L9 21l-2.5-6.5L0 12l6.5-2.5ZM19 0l1.35 3.65L24 5l-3.65 1.35L19 10l-1.35-3.65L14 5l3.65-1.35Z'/%3E%3C/svg%3E") center/contain no-repeat}
.site-header .header-cta::after{display:none}
.site-header .menu-toggle{display:none}

@media(max-width:1150px){.site-header .logo{width:142px}.site-header nav{gap:14px}.site-header nav a,.site-header nav summary{font-size:12px}}
@media(max-width:1000px){.site-header nav{font-size:12px}}
@media(max-width:960px){.site-header{padding-right:67px}.site-header .wrap{gap:12px}
.site-header nav{display:none;position:absolute;left:14px;right:14px;top:calc(100% + 6px);background:#fff;box-shadow:0 20px 45px #243b5322;border:1px solid #e0e7ef;border-radius:15px;padding:14px;max-height:calc(100dvh - 170px);overflow:auto;align-items:stretch}
.site-header nav.open{display:flex;flex-direction:column;gap:0}
.site-header nav>a,.site-header nav summary{font-size:15px;padding:13px;line-height:1.5}
.site-header .content-links{position:static;width:100%;box-shadow:none;border:0;padding:0 10px 10px 22px}
.site-header .content-links a{font-size:13px}
.site-header .menu-toggle{display:flex;font:inherit;position:absolute;right:18px;top:50%;transform:translateY(-50%);width:36px;height:36px;margin:0;padding:0;border:1px solid #dce5ef;border-radius:8px;background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer}
.site-header .menu-toggle span{display:block;width:15px;height:1.5px;margin:0;padding:0;border:0;border-radius:0;background:#435b75;opacity:1}
.site-header .menu-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.site-header .menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}
.site-header .menu-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}}
@media(max-width:860px){.site-header{padding:14px 67px 14px 20px}
.site-header .content-menu .content-links{margin:14px 0 2px 8px;padding:3px 0 3px 17px;border:0;border-radius:0;gap:15px;background:transparent}
.site-header .content-menu .content-links a{font-size:13px;line-height:1.6;white-space:normal}}
@media(max-width:760px){.site-header .header-cta{font-size:12px;min-height:44px;padding:12px}}
@media(max-width:540px){.site-header{padding:13px 62px 13px 16px}.site-header .logo{width:115px}.site-header .menu-toggle{right:16px;width:32px;height:32px}}
/* Header-Button am Handy immer einzeilig (brach auf iPhone 12 Pro, 390 px, in zwei Zeilen um; Alexander 27.09.) */
@media(max-width:430px){.site-header .header-cta{white-space:nowrap}}
@media(max-width:380px){.site-header .header-cta{font-size:9px;padding:12px 8px}.site-header .header-cta::before{width:14px;height:14px;margin-right:5px}}
@media(max-width:360px){.site-header .logo{width:101px}}
@media(prefers-reduced-motion:reduce){.site-header .header-cta{transition:none}.site-header .header-cta:hover,.site-header .header-cta:active{transform:none}}

/* Freigegebenes gemeinsames Menü, 03.10.2026. */
@media(min-width:961px){
.site-header.site-header{padding:19px 32px;background:rgba(255,255,255,.97);border-bottom-color:#e9edf3}
.site-header.site-header .wrap{max-width:1320px;gap:30px}
.site-header.site-header .logo{width:174px}
.site-header.site-header nav{gap:27px;margin-left:auto;margin-right:14px}
.site-header.site-header nav>a,.site-header.site-header summary{font-family:Inter,system-ui,sans-serif;font-size:15px;font-weight:500;line-height:24px;letter-spacing:-.2px;white-space:nowrap;padding:10px 0;position:relative}
.site-header.site-header nav>a::after,.site-header.site-header summary::after{content:"";position:absolute;bottom:3px;left:0;right:0;height:2px;background:#315edc;border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.site-header.site-header nav>a:hover::after,.site-header.site-header nav>a:focus-visible::after,.site-header.site-header summary:hover::after,.site-header.site-header .content-menu[open] summary::after{transform:scaleX(1)}
.site-header.site-header .content-menu[open] summary{color:#315edc}
.site-header.site-header .header-cta{flex-shrink:0;min-height:48px;padding:13px 19px}
.site-header.site-header .content-links{top:calc(100% + 16px);left:-22px;width:420px;padding:12px;gap:3px;border:1px solid #e4e9f2;border-radius:18px;box-shadow:0 20px 50px -12px #152a4a2b,0 3px 8px #152a4a05}
.site-header.site-header .content-links::before{content:"";position:absolute;left:0;right:0;top:-18px;height:18px}
}
.site-header.site-header .content-links a.resource-link{display:flex;align-items:center;gap:14px;padding:13px 12px;border-radius:10px;text-decoration:none;transition:background-color .18s,color .18s}
.site-header.site-header .resource-icon{display:grid;place-items:center;flex:0 0 40px;width:40px;height:40px;border:1px solid #e4eafa;border-radius:11px;background:#f2f5fc;color:#315edc;transition:background-color .18s}
.site-header.site-header .resource-icon svg{width:22px;height:22px}
.site-header.site-header .resource-copy{display:flex;flex-direction:column;gap:4px;min-width:0}
.site-header.site-header .resource-title{font-family:Inter,system-ui,sans-serif;font-size:14.5px;font-weight:550;line-height:1.35;color:#17283e}
.site-header.site-header .resource-description{font-family:Inter,system-ui,sans-serif;font-size:12px;font-weight:400;line-height:1.4;color:#6c7787}
.site-header.site-header .resource-arrow{margin-left:auto;color:#91a0b4;opacity:0;transform:translateX(-4px);transition:opacity .18s,transform .18s}
.site-header.site-header .resource-link:hover,.site-header.site-header .resource-link:focus-visible{background:#f4f7fc}
.site-header.site-header .resource-link:hover .resource-title{color:#315edc}
.site-header.site-header .resource-link:hover .resource-arrow,.site-header.site-header .resource-link:focus-visible .resource-arrow{opacity:1;transform:none}
.site-header.site-header .content-links .resource-all{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #e7edf5;border-radius:0;margin:8px 10px 0;padding:16px 2px 6px;font-family:Inter,system-ui,sans-serif;font-size:13px;font-weight:500;color:#315edc}
.site-header.site-header .content-links .resource-all:hover{background:transparent;color:#153fae}
.site-header.site-header nav a:focus-visible,.site-header.site-header nav summary:focus-visible{outline:2px solid #315edc;outline-offset:4px;border-radius:4px}
@media(min-width:961px) and (max-width:1180px){
.site-header.site-header{padding:17px 24px}
.site-header.site-header .wrap{gap:22px}
.site-header.site-header .logo{width:145px}
.site-header.site-header nav{gap:18px;margin-right:0}
.site-header.site-header nav>a,.site-header.site-header summary{font-size:13.5px}
.site-header.site-header .header-cta{font-size:12px;padding:12px 14px}
.site-header.site-header .content-links{left:auto;right:-75px}
}
@media(max-width:960px){
.site-header.site-header .content-menu .content-links{width:auto;margin:5px 9px 12px 18px;padding:0 0 0 10px;gap:3px;border:0}
.site-header.site-header .content-links a.resource-link{padding:11px 6px;gap:10px}
.site-header.site-header .resource-icon{flex-basis:32px;width:32px;height:32px;border-radius:8px}
.site-header.site-header .resource-icon svg{width:18px;height:18px}
.site-header.site-header .resource-title{font-size:13px}
.site-header.site-header .resource-description{font-size:11px}
.site-header.site-header .resource-arrow{display:none}
.site-header.site-header .content-links .resource-all{font-size:12px;margin-left:6px;margin-right:6px;line-height:1.5}
}
@media(prefers-reduced-motion:reduce){.site-header.site-header *,.site-header.site-header *::after{transition:none!important}}

/* Karriere: Stellenangebote statt Vertriebs-Erstgespräch. */
.site-header.career-header-preview .header-cta{background:linear-gradient(115deg,#285afa,#1943c7);box-shadow:0 6px 18px #2454d61a}
.site-header.career-header-preview .header-cta:hover{background:linear-gradient(115deg,#3868ff,#204ddc);box-shadow:0 9px 24px #2454d628}
.site-header.career-header-preview .header-cta::before{display:none}
.site-header.career-header-preview .header-cta::after{content:'→';position:static;display:inline-block;margin-left:10px;background:none;mask:none;-webkit-mask:none;transform:none;animation:none;width:auto;height:auto;opacity:1;font-size:18px;line-height:1}
@media(max-width:380px){.site-header.career-header-preview .header-cta::after{font-size:15px;margin-left:6px}}

/* 06.10.2026 (Alexander): Der Hover-Strich unter „Kostenfreier Content“ sprang in manchen Browsern nach oben, weil ein absolut
   positioniertes ::after in einem <summary> nicht überall am Element hängt. Dort jetzt als Hintergrund-Strich, gleiche Lage wie bei den Links. */
.site-header.site-header summary::after{display:none}
.site-header.site-header summary{background-image:linear-gradient(#315edc,#315edc);background-repeat:no-repeat;background-position:left bottom 3px;background-size:0 2px;transition:background-size .18s ease,color .18s ease}
.site-header.site-header summary:hover,.site-header.site-header summary:focus-visible,.site-header.site-header .content-menu[open] summary{background-size:100% 2px}
/* Karriere mit kleinem Personen-Icon (Alexander 06.10.2026) */
.site-header.site-header nav>a[href="/karriere"]::before{content:"";display:inline-block;width:15px;height:15px;margin-right:6px;vertical-align:-2px;background:currentColor;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='8' r='4'/%3E%3Cpath d='M4 21a8 8 0 0 1 16 0'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='8' r='4'/%3E%3Cpath d='M4 21a8 8 0 0 1 16 0'/%3E%3C/svg%3E") center/contain no-repeat}

/* Aufklapp-Menü: kein grauer Strich links (Handy) und kein blauer Strich unter „Kostenlose KI-Automationen“, solange es aufgeklappt ist (Alexander 08.10.2026) */
.site-header.site-header .content-menu[open] summary{background-size:0 2px}