/* Phase 9 – Hersteller- und Großhandelsportal */
.sd-nav-item{position:relative}
.sd-nav-item::after{content:"";position:absolute;left:-.75rem;right:-.75rem;top:100%;height:2.1rem;pointer-events:auto}
.sd-nav-item.is-mega-open>.sd-mega{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.sd-nav-item.is-mega-open>.sd-nav-trigger svg{transform:rotate(180deg)}
.sd-nav-item.is-mega-open>.sd-nav-trigger:after{transform:scaleX(1);transform-origin:left}

.sd-b2b-hero{position:relative;isolation:isolate;overflow:hidden;background:linear-gradient(125deg,#021b34 0%,#053675 55%,#0b4f98 100%);color:#fff;padding:clamp(5rem,9vw,8rem) 0}
.sd-b2b-hero:before{content:"";position:absolute;inset:-25%;z-index:-1;background:radial-gradient(circle at 75% 30%,rgba(95,177,255,.27),transparent 28%),linear-gradient(120deg,transparent 42%,rgba(255,255,255,.08) 42.3%,transparent 43%);transform:rotate(-4deg)}
.sd-b2b-hero__grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(20rem,.95fr);align-items:center;gap:clamp(2.5rem,6vw,6rem)}
.sd-b2b-hero h1{color:#fff;max-width:14ch}.sd-b2b-hero p{color:#d8e7f6;max-width:64ch}
.sd-b2b-hero__media{position:relative;min-height:32rem;border-radius:2rem;overflow:hidden;box-shadow:0 35px 90px rgba(0,0,0,.35)}
.sd-b2b-hero__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.sd-b2b-hero__media:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(1,20,39,.65))}
.sd-b2b-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#dbe6f0;border:1px solid #dbe6f0;border-radius:1.35rem;overflow:hidden;box-shadow:0 20px 55px rgba(3,40,79,.1)}
.sd-b2b-fact{background:#fff;padding:1.6rem}.sd-b2b-fact strong{display:block;color:#053675;font:600 clamp(1.4rem,2vw,2rem)/1.1 var(--sdf-font-emotion)}.sd-b2b-fact span{display:block;margin-top:.45rem;color:#65798d;font-size:.88rem}
.sd-chain{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem;counter-reset:chain}.sd-chain article{position:relative;padding:1.6rem;border-radius:1.25rem;background:#fff;border:1px solid #dde8f2;box-shadow:0 14px 40px rgba(3,40,79,.08)}.sd-chain article:before{counter-increment:chain;content:"0" counter(chain);display:grid;place-items:center;width:3rem;height:3rem;border-radius:1rem;background:#053675;color:#fff;font:600 .9rem/1 var(--sdf-font-brand)}.sd-chain article:not(:last-child):after{content:"→";position:absolute;right:-1rem;top:2.25rem;color:#86a7c5;font-size:1.5rem;z-index:2}
.sd-service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}.sd-service-card{display:flex;flex-direction:column;min-height:18rem;padding:1.6rem;border-radius:1.4rem;background:linear-gradient(145deg,#fff,#f3f7fb);border:1px solid #dce7f1;transition:transform .25s ease,box-shadow .25s ease}.sd-service-card:hover{transform:translateY(-5px);box-shadow:0 24px 55px rgba(3,40,79,.13)}.sd-service-card__icon{width:3.2rem;height:3.2rem;border-radius:1rem;background:#e8f1fa;color:#053675;display:grid;place-items:center;font-size:1.35rem}.sd-service-card a{margin-top:auto;color:#053675;font-weight:700;text-decoration:none}
.sd-download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.sd-download-card{display:flex;gap:1rem;align-items:flex-start;padding:1.25rem;border-radius:1rem;background:#fff;border:1px solid #dce7f1}.sd-download-card__type{flex:0 0 auto;padding:.45rem .55rem;border-radius:.55rem;background:#053675;color:#fff;font:700 .7rem/1 var(--sdf-font-brand);letter-spacing:.08em}.sd-download-card small{color:#708397}.sd-download-card a{color:#053675;font-weight:700;text-decoration:none}
.sd-b2b-form{padding:clamp(1.5rem,4vw,2.5rem);border-radius:1.5rem;background:#fff;border:1px solid #dbe6f0;box-shadow:0 25px 65px rgba(3,40,79,.12)}.sd-b2b-form .sdf-field{margin-bottom:1rem}.sd-b2b-form label{display:block;margin-bottom:.45rem;color:#233b53;font-weight:600}.sd-b2b-form input,.sd-b2b-form select,.sd-b2b-form textarea{width:100%;padding:.9rem 1rem;border:1px solid #cad9e6;border-radius:.8rem;background:#fff;color:#102a43;font:400 1rem/1.4 var(--sdf-font-ui)}.sd-b2b-form input:focus,.sd-b2b-form select:focus,.sd-b2b-form textarea:focus{outline:3px solid rgba(5,54,117,.13);border-color:#053675}.sd-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.sd-portal-tabs{display:flex;gap:.65rem;flex-wrap:wrap;margin-bottom:2rem}.sd-portal-tabs a{padding:.75rem 1rem;border-radius:999px;background:#edf3f8;color:#294761;text-decoration:none;font-weight:600}.sd-portal-tabs a:hover,.sd-portal-tabs a.is-active{background:#053675;color:#fff}
@media(max-width:980px){.sd-b2b-hero__grid{grid-template-columns:1fr}.sd-b2b-hero__media{min-height:25rem}.sd-b2b-facts,.sd-chain{grid-template-columns:repeat(2,1fr)}.sd-service-grid,.sd-download-grid{grid-template-columns:repeat(2,1fr)}.sd-chain article:after{display:none}}
@media(max-width:640px){.sd-b2b-facts,.sd-chain,.sd-service-grid,.sd-download-grid,.sd-form-grid{grid-template-columns:1fr}.sd-b2b-hero__media{min-height:20rem}}