/* Consistent shared masthead: brand and utilities first, section links underneath. */
:root{--header:7.8rem}
.site-header{position:sticky;top:0;z-index:1000;background:color-mix(in srgb,var(--color-bg) 97%,transparent);backdrop-filter:blur(.75rem);border-bottom:1px solid var(--color-border)}
.site-nav{width:calc(100% - clamp(2rem,6vw,8rem));max-width:112rem;margin:auto}
.nav-top{min-height:4.6rem;display:flex;align-items:center;justify-content:space-between;gap:2rem}
.brand{display:flex;align-items:center;gap:.8rem;flex:0 0 auto;color:var(--color-text-primary);text-decoration:none}
.brand img{display:block;width:3.35rem;height:3.35rem;object-fit:contain;flex:0 0 3.35rem}
.brand-name{display:flex;flex-direction:column;justify-content:center;max-width:19rem;color:inherit;font:clamp(1rem,1.15vw,1.2rem)/1.12 Georgia,serif;white-space:nowrap;opacity:1!important;transition:none!important}
.nav-tools{display:flex;align-items:center;justify-content:flex-end;gap:clamp(.85rem,1.8vw,2rem);font:600 .9rem 'Open Sans',Arial,sans-serif;letter-spacing:.015em}
.nav-tools a{color:var(--color-text-secondary);text-decoration:none;white-space:nowrap}
.nav-tools a:hover{text-decoration:underline;text-underline-offset:.25em}
.languages{display:flex;align-items:center;gap:clamp(.7rem,1.1vw,1.15rem)}
.language-short{display:none}
.privacy-link{padding-inline:.1rem}
.access-link{display:grid;place-items:center;width:2.8rem;height:2.8rem;border:1px solid var(--color-border);border-radius:50%;flex:0 0 auto}
.access-link img{width:1.35rem;height:1.35rem;object-fit:contain}
.nav-categories{display:flex;align-items:center;gap:clamp(1.25rem,3vw,3.2rem);min-height:3.1rem;border-top:1px solid var(--color-border);font:600 clamp(.88rem,.95vw,1rem) 'Open Sans',Arial,sans-serif}
/* The underline grows from the left on hover; it is drawn over the transparent bottom border, so the link keeps its height */
.nav-categories>a:not(.nav-cta){padding:.55rem 0;border-bottom:2px solid transparent;background:linear-gradient(var(--color-accent-primary),var(--color-accent-primary)) left bottom/0 2px no-repeat border-box;text-decoration:none;white-space:nowrap;transition:background-size .3s ease}
.nav-categories>a:not(.nav-cta):hover{background-size:100% 2px}
.nav-cta{margin-left:auto;flex:0 0 auto;min-height:2.7rem;padding:.35rem .45rem .35rem 1rem;border:1px solid #111;border-radius:.65rem;background:#111;color:#fff;font:500 .86rem 'Open Sans',Arial,sans-serif;white-space:nowrap;overflow:hidden}
.nav-cta span{display:inline-grid;place-items:center;min-width:2.2rem;align-self:stretch;margin-left:.65rem;border-left:1px solid rgba(255,255,255,.25);font-size:1rem}
.nav-cta:hover{background:#444;border-color:#444;color:#fff}
.nav-tools .languages a[lang=de]{font-weight:700;color:var(--color-text-primary)}
@media(max-width:1000px){
 :root{--header:9.5rem}
 .site-nav{width:calc(100% - 3rem)}
 .nav-top{min-height:0;flex-wrap:wrap;row-gap:.1rem;padding:.45rem 0 .55rem}
 .brand{min-width:0}.brand img{width:3rem;height:3rem;flex-basis:3rem}
 .brand-name{font-size:1rem;max-width:calc(100vw - 8rem);white-space:normal}
 .nav-tools{width:100%;justify-content:flex-end;gap:1rem;padding:.25rem 0 .1rem;font-size:.82rem}
 .nav-categories{gap:clamp(.8rem,2vw,1.5rem);flex-wrap:wrap;padding:.35rem 0}
}
@media(max-width:640px){
 :root{--header:14.5rem}
 .site-nav{width:calc(100% - 2rem)}
 .nav-top{align-items:center;gap:.35rem;padding:.4rem 0 .45rem}
 .brand{width:100%;gap:.65rem}
 .brand img{width:2.7rem;height:2.7rem;flex-basis:2.7rem}
 .brand-name{font-size:1rem;max-width:calc(100vw - 6rem)}
 .nav-tools{justify-content:space-between;flex-wrap:nowrap;gap:.55rem;padding:.2rem 0 .35rem;font-size:.72rem}
 .nav-tools .languages{gap:.65rem}
 .language-long{display:none}.language-short{display:inline}
 .access-link{width:2rem;height:2rem}
 .access-link img{width:1.1rem;height:1.1rem}
 .nav-categories{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.1rem 1rem;padding:.4rem 0 .6rem;font-size:.82rem}
 .nav-categories>a:not(.nav-cta){white-space:normal;line-height:1.2;padding:.4rem 0}
 .nav-cta{grid-column:1/-1;justify-self:start;margin:.2rem 0 0;min-height:2.45rem}
}
@media(prefers-reduced-motion:reduce){.site-header{backdrop-filter:none}}

/* Let the divider between masthead rows span the viewport, not only the content column. */
.nav-categories{position:relative;border-top:0}.nav-categories:before{position:absolute;content:'';height:1px;background:var(--color-border);top:0;left:50%;width:100vw;transform:translateX(-50%)}.nav-categories>a:not(.nav-cta){margin-top:1px}.nav-cta{font-size:.92rem;padding:.5rem .55rem .5rem 1.2rem;min-height:2.9rem}
@media(max-width:640px){.nav-categories:before{top:0}.nav-cta{font-size:.86rem}}

.languages a[hidden]{display:none}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}

/* Keep the complete category tab group centered as one unit. */
.nav-categories{justify-content:center;gap:clamp(1.25rem,2.6vw,3rem)}.nav-cta{margin-left:0}
@media(max-width:1000px){.nav-categories{justify-content:center}}
@media(max-width:640px){.nav-categories{justify-items:center}.nav-categories>a:not(.nav-cta){justify-self:center}.nav-cta{justify-self:center}}

/* Match the reference's compact utility links and keep the split CTA intact. */
.nav-tools .languages .language-long,.nav-tools .contact-link,.nav-tools .privacy-link{text-transform:uppercase;letter-spacing:.035em}
.nav-tools .contact-link,.nav-tools .privacy-link{font-size:.78rem}
.nav-cta{display:inline-flex;align-items:center;justify-content:space-between;gap:0;min-width:12rem;height:3rem;min-height:3rem;padding:0 0 0 1.15rem;line-height:1;flex-shrink:0}
.nav-cta span{display:inline-flex;align-items:center;justify-content:center;width:2.7rem;height:100%;min-width:2.7rem;flex:0 0 2.7rem;margin:0 0 0 .85rem;border-left:1px solid rgba(255,255,255,.28);font-size:1rem}
@media(max-width:640px){.nav-tools .contact-link,.nav-tools .privacy-link{font-size:.66rem;letter-spacing:0}.nav-cta{min-width:11rem;height:2.8rem;min-height:2.8rem}}

/* Use one consistent type scale and gap for language and utility labels. */
.nav-tools{font:600 .78rem/1.2 'Open Sans',Arial,sans-serif;letter-spacing:.035em;gap:clamp(.75rem,1.2vw,1.2rem)}
.nav-tools .languages{gap:clamp(.75rem,1.2vw,1.2rem)}
.nav-tools .contact-link,.nav-tools .privacy-link{font:inherit;letter-spacing:inherit}
.nav-tools .language-long,.nav-tools .contact-link,.nav-tools .privacy-link{text-transform:uppercase}
/* Fit the split simulation CTA into the centered tab group without squeezing its label. */
.nav-cta{min-width:10.75rem;padding-left:.85rem;font-size:.84rem}
.nav-cta span{width:2.15rem;min-width:2.15rem;flex-basis:2.15rem;margin-left:.5rem}
@media(max-width:1000px){.nav-tools{font-size:.74rem;gap:.75rem}.nav-tools .languages{gap:.75rem}.nav-categories{gap:clamp(.65rem,1.4vw,1.2rem)}}
@media(max-width:640px){.nav-tools{font-size:.65rem;letter-spacing:.02em;gap:.55rem}.nav-tools .languages{gap:.55rem}.nav-cta{min-width:10.25rem;font-size:.78rem}}

/* Mobile masthead: compact utilities and four balanced navigation cells. */
@media(max-width:640px){
 :root{--header:11rem}
 .site-nav{width:calc(100% - 1.5rem);min-width:0}
 .nav-top{gap:.3rem;padding:.35rem 0 .4rem}
 .brand{width:100%;gap:.55rem}
 .brand img{width:2.45rem;height:2.45rem;flex-basis:2.45rem}
 .brand-name{font-size:.92rem;line-height:1.1;max-width:calc(100vw - 5rem)}
 .nav-tools{display:grid;width:100%;min-width:0;grid-template-columns:auto auto auto auto auto;align-items:center;justify-content:space-between;gap:.3rem;padding:.15rem 0 .35rem;font-size:.62rem;letter-spacing:.015em}
 .nav-tools .languages{min-width:0;gap:.35rem}
 .nav-tools .contact-link,.nav-tools .privacy-link{font-size:.58rem;letter-spacing:0}
 .nav-tools .privacy-link{max-width:5.7rem;overflow-wrap:anywhere;line-height:1.05;text-align:center}
 .access-link{width:1.8rem;height:1.8rem}
 .access-link img{width:1rem;height:1rem}
 .nav-categories{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch;justify-content:stretch;justify-items:stretch;gap:.25rem .35rem;padding:.4rem 0 .5rem;font-size:.78rem}
 .nav-categories>a:not(.nav-cta){display:flex;align-items:center;justify-content:center;min-width:0;min-height:2.5rem;margin:0;padding:.35rem .25rem;border:1px solid transparent;border-radius:.45rem;line-height:1.15;text-align:center;white-space:normal}
 .nav-cta{grid-column:auto;justify-self:stretch;width:100%;min-width:0;height:2.5rem;min-height:2.5rem;margin:0;padding:0 .35rem 0 .55rem;border-radius:.5rem;font-size:.65rem;line-height:1;white-space:nowrap}
 .nav-cta span{width:1.7rem;height:100%;min-width:1.7rem;flex-basis:1.7rem;margin-left:.3rem;font-size:.85rem}
}

/* Keep the dark simulation tab typographically aligned with its sibling links. */
.nav-categories .nav-cta{font:inherit;color:#fff;min-height:3.25rem;height:auto;padding:.65rem .35rem .65rem .85rem;line-height:1.2}
@media(max-width:640px){.nav-categories .nav-cta{min-height:2.8rem;padding:.45rem .3rem .45rem .55rem;line-height:1.15}}

/* Keep the CTA self-sized, with an inset divider and a vertically centered arrow. */
.nav-categories .nav-cta{align-self:center;display:inline-flex;align-items:center;justify-content:center;width:max-content;min-width:10.75rem;height:3rem;min-height:3rem;padding:.35rem .45rem .35rem .85rem;border-radius:.65rem;line-height:1.2}
.nav-categories .nav-cta span{display:inline-flex;align-items:center;justify-content:center;align-self:center;height:1.35rem;width:2.15rem;min-width:2.15rem;flex:0 0 2.15rem;margin:0 0 0 .5rem;padding:0;border-left:1px solid rgba(255,255,255,.28);line-height:1;font-size:1rem}
@media(max-width:640px){.nav-categories .nav-cta{grid-column:1/-1;justify-self:center;width:max-content;min-width:10.25rem;height:2.8rem;min-height:2.8rem;padding:.3rem .35rem .3rem .65rem}.nav-categories .nav-cta span{height:1.25rem;width:1.7rem;min-width:1.7rem;flex-basis:1.7rem;margin-left:.35rem;font-size:.85rem}}

/* Give the CTA clear breathing room between the two masthead rules. */
.nav-categories{min-height:4.1rem;padding-block:.5rem}
.nav-categories .nav-cta{margin-block:.1rem}
@media(max-width:640px){.nav-categories{min-height:0;padding-block:.55rem .75rem;row-gap:.35rem}.nav-categories .nav-cta{margin-block:.25rem .15rem}}
/* Mobile navigation overlay: dim the masthead beneath a light gradient, keeping the close button above it. */
.site-header .menu-toggle{display:none}
@media(max-width:720px){
 :root{--header:6.8rem}
 .site-header .site-nav{width:calc(100% - 1.25rem);max-width:none}
 .site-header .nav-top{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:.35rem .5rem;min-height:0;padding:.45rem 0 0}
 .site-header .brand{width:auto;min-width:0;gap:.55rem}
 .site-header .brand img{width:2.65rem;height:2.65rem;flex-basis:2.65rem}
 .site-header .brand-name{max-width:calc(100vw - 7rem);font-size:.94rem;line-height:1.1;white-space:normal}
 .site-header .menu-toggle{appearance:none;position:relative;z-index:1004;display:inline-flex;align-items:center;justify-content:center;width:2.75rem;min-width:2.75rem;height:2.75rem;padding:0;border:1px solid var(--color-border);border-radius:.65rem;background:rgba(255,249,244,.78);color:var(--color-text-primary);cursor:pointer;transition:background .18s,border-color .18s}
 .site-header .menu-toggle:hover{background:var(--color-paper);border-color:var(--color-input-border)}
 .site-header .menu-toggle:focus-visible{outline:2px solid var(--color-accent-primary);outline-offset:3px}
 .site-header .menu-icon{display:flex;flex-direction:column;gap:4px;width:1.05rem}
 .site-header .menu-icon span{display:block;width:100%;height:2px;border-radius:2px;background:currentColor;transition:transform .18s ease,opacity .18s ease}
 .site-header.is-open .menu-icon span:first-child{transform:translateY(6px) rotate(45deg)}
 .site-header.is-open .menu-icon span:nth-child(2){opacity:0}
 .site-header.is-open .menu-icon span:last-child{transform:translateY(-6px) rotate(-45deg)}
 .site-header .nav-top .nav-tools{display:flex;grid-column:1/-1;align-items:center;justify-content:flex-start;flex-wrap:wrap;gap:.55rem .8rem;width:100%;min-width:0;margin:.35rem 0 0;padding:.65rem .15rem .7rem;border-top:1px solid var(--color-border);font:600 .7rem/1.2 'Open Sans',Arial,sans-serif;letter-spacing:.015em}
 .site-header .nav-tools .languages{display:flex;gap:.65rem;min-width:0}
 .site-header .nav-tools .language-long{display:none}
 .site-header .nav-tools .language-short{display:inline}
 .site-header .nav-tools .contact-link,.site-header .nav-tools .privacy-link{max-width:none;margin:0;overflow:visible;font:inherit;letter-spacing:inherit;text-align:left;overflow-wrap:normal}
 .site-header .nav-tools .access-link{width:2rem;height:2rem;margin-left:auto}
 .site-header .nav-tools .access-link+.access-link{margin-left:0}
 .site-header .nav-tools .access-link img{width:1.05rem;height:1.05rem}
 .site-header .nav-categories{display:none}
 .site-header.is-open .nav-categories{position:fixed;z-index:1002;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:flex-end;justify-content:flex-start;gap:.2rem;width:100%;height:100vh;height:100dvh;min-height:100vh;margin:0;padding:calc(7.5rem + env(safe-area-inset-top)) max(1.1rem,env(safe-area-inset-right)) calc(1.5rem + env(safe-area-inset-bottom)) max(1.1rem,env(safe-area-inset-left));overflow-y:auto;overscroll-behavior:contain;border:0;background:linear-gradient(180deg,rgba(255,249,244,.96) 0%,rgba(255,249,244,.88) 28%,rgba(255,249,244,.5) 60%,rgba(255,249,244,.04) 100%);backdrop-filter:blur(2px);text-align:right}
 .site-header.is-open .nav-categories:before{display:none}
 .site-header.is-open .nav-categories>a:not(.nav-cta){display:block;align-self:flex-end;width:max-content;max-width:100%;min-width:0;min-height:2.65rem;margin:0;padding:.62rem .25rem;border:0;border-bottom:1px solid rgba(26,26,26,.2);border-radius:0;line-height:1.2;text-align:right;white-space:normal}
 .site-header.is-open .nav-categories>a:not(.nav-cta){min-height:3.25rem;padding:.78rem .3rem;font-size:1.02rem;line-height:1.25}
 .site-header.is-open .nav-categories>a:not(.nav-cta):hover{background:transparent;border-bottom-color:rgba(26,26,26,.55)}
 .site-header.is-open .nav-categories .nav-cta{display:inline-flex;align-self:flex-end;align-items:center;justify-content:space-between;width:max-content;min-width:10.25rem;max-width:100%;height:2.8rem;min-height:2.8rem;margin:.6rem 0 .15rem;padding:.45rem .55rem .45rem .85rem;border-radius:.55rem;font:700 .82rem/1.2 'Open Sans',Arial,sans-serif}
 .site-header.is-open .nav-categories .nav-cta span{width:2rem;height:1.25rem;min-width:2rem;flex:0 0 2rem;margin-left:.7rem}
 body.mobile-menu-open{overflow:hidden}
}
/* Mobile overlay motion and horizontal fade refinement. */
@media(max-width:720px){
 .site-header .nav-categories{position:fixed;z-index:1002;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:flex-end;justify-content:flex-start;gap:.2rem;width:100%;height:100vh;height:100dvh;min-height:100vh;margin:0;padding:calc(6.4rem + env(safe-area-inset-top)) max(1.1rem,env(safe-area-inset-right)) calc(1.5rem + env(safe-area-inset-bottom)) max(1.1rem,env(safe-area-inset-left));overflow-y:auto;overscroll-behavior:contain;border:0;background:linear-gradient(270deg,rgba(255,249,244,.97) 0%,rgba(255,249,244,.88) 32%,rgba(255,249,244,.5) 68%,rgba(255,249,244,.04) 100%);backdrop-filter:blur(2px);text-align:right;visibility:hidden;opacity:0;pointer-events:none;transform:translateX(1.25rem);transition:opacity .38s ease-in-out,transform .38s ease-in-out,visibility 0s linear .38s}
 .site-header.is-open .nav-categories{visibility:visible;opacity:1;pointer-events:auto;transform:translateX(0);transition-delay:0s;padding:calc(6.4rem + env(safe-area-inset-top)) max(1.1rem,env(safe-area-inset-right)) calc(1.5rem + env(safe-area-inset-bottom)) max(1.1rem,env(safe-area-inset-left));background:linear-gradient(270deg,rgba(255,249,244,.97) 0%,rgba(255,249,244,.88) 32%,rgba(255,249,244,.5) 68%,rgba(255,249,244,.04) 100%)}
}
@media(prefers-reduced-motion:reduce){.site-header .nav-categories{transition:none!important;transform:none!important}}

/* Raised graphite CTA on the desktop header; keep burger-menu styling untouched. */
.site-header:not(.is-open) .nav-categories .nav-cta{border-color:#494949;background:linear-gradient(180deg,#454545 0%,#303030 50%,#222 100%);box-shadow:inset 0 1px 0 rgba(255,255,255,.16),inset 0 -2px 0 rgba(0,0,0,.24),0 3px 0 rgba(0,0,0,.12),0 6px 14px rgba(0,0,0,.14);transition:background .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease}
.site-header:not(.is-open) .nav-categories .nav-cta:hover,.site-header:not(.is-open) .nav-categories .nav-cta:focus-visible{border-color:#626262;background:linear-gradient(180deg,#555 0%,#3a3a3a 52%,#292929 100%);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.2),inset 0 -2px 0 rgba(0,0,0,.2),0 4px 0 rgba(0,0,0,.13),0 10px 18px rgba(0,0,0,.2);transform:translateY(-1px)}
.site-header:not(.is-open) .nav-categories .nav-cta:active{box-shadow:inset 0 2px 4px rgba(0,0,0,.2),0 1px 2px rgba(0,0,0,.12);transform:translateY(1px)}
@media(prefers-reduced-motion:reduce){.site-header:not(.is-open) .nav-categories .nav-cta{transition:none}}

/* Keep the same unfiltered brand mark and wordmark on every page. */
.site-header .brand img{filter:none!important;opacity:1!important;mix-blend-mode:normal!important}
.site-header .brand-name,.site-header .brand-name>span{filter:none!important;opacity:1!important;color:var(--color-text-primary)!important}
.site-header .brand{gap:.8rem!important}
.site-header .brand img{width:3.35rem!important;height:3.35rem!important;flex-basis:3.35rem!important}
@media(max-width:720px){.site-header .brand img{width:2.65rem!important;height:2.65rem!important;flex-basis:2.65rem!important}}

/* Keep the mobile CTA anchored to the same sidebar edge as the other menu links. */
@media (max-width: 720px) {
  .site-header .nav-categories .nav-cta {
    align-self: flex-end;
    margin-right: 0;
  }
}
/* Show mobile menu links and dividers immediately when the menu opens. */
@media (max-width: 720px) {
  .site-header .nav-categories,
  .site-header.is-open .nav-categories {
    transition: none !important;
    transform: none !important;
  }

  .site-header.is-open .nav-categories > a:not(.nav-cta) {
    border-bottom: 1px solid rgba(26, 26, 26, 0.2);
    font-weight: 700;
  }
}
/* Top-row tools tightened by main.js so they start to the right of the Simulation button. */
.nav-tools.is-fitted,.nav-tools.is-fitted .languages{gap:var(--tools-gap)}
.nav-tools.is-fitted{font-size:calc(.78rem * var(--tools-scale))}
.nav-tools.is-short .language-long{display:none}
.nav-tools.is-short .language-short{display:inline}