/*
 * GMS — German Manual of Style | Public homepage V2
 * Source reference: editorial scientific platform mockup approved 23 Oct 2026.
 * Bootstrap 5.3.6 provides the underlying responsive layout and navigation.
 * Font files are intentionally not embedded. Fonts load from Google Fonts when online.
 */
:root {
  --gms-canvas: #fafaf6;
  --gms-paper: #f2f3ed;
  --gms-paper-strong: #edf4db;
  --gms-ink: #191a19;
  --gms-body: #5b605d;
  --gms-muted: #7f8580;
  --gms-line: #dce0d8;
  --gms-accent: #dcf4a6;
  --gms-accent-deep: #a8d460;
  --gms-accent-dark: #50771f;
  --gms-font-head: "IBM Plex Mono", "DejaVu Sans Mono", "Liberation Mono", monospace;
  --gms-font-body: "IBM Plex Sans", "Inter", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --gms-container: 1380px;
  --gms-transition: 260ms cubic-bezier(.2,.65,.22,1);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 108px; }
body { margin: 0; background: var(--gms-canvas); color: var(--gms-ink); font-family: var(--gms-font-body); font-size: 18px; line-height: 1.62; -webkit-font-smoothing: antialiased; }
body, .site-header { color-scheme: light; }
::selection { background: var(--gms-accent); color: var(--gms-ink); }
a { color: inherit; text-decoration: none; transition: color var(--gms-transition); }
a:hover { color: var(--gms-accent-dark); }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible { outline: 3px solid #7cae3b; outline-offset: 5px; }
img { max-width: 100%; display: block; }
p { margin: 0 0 1.15rem; }
h1, h2, h3, h4 { color: var(--gms-ink); }
section[id] { scroll-margin-top: 112px; }
.gms-container { width: calc(100% - 64px); max-width: var(--gms-container); }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 2000; background: #141414; color: white; padding: 11px 18px; border-radius: 6px; }
.skip-link:focus { top: 15px; color: white; }
/* header / sticky on scroll */
.site-header { position: sticky; top: 0; width: 100%; z-index: 1050; background: rgba(250,250,246,.97); border-bottom: 1px solid transparent; transition: background var(--gms-transition), box-shadow var(--gms-transition), border-color var(--gms-transition); }
.site-header.is-scrolled { background: rgba(250,250,246,.92); backdrop-filter: blur(16px) saturate(1.3); -webkit-backdrop-filter: blur(16px) saturate(1.3); border-color: rgba(60,60,40,.12); box-shadow: 0 7px 34px rgba(30,40,20,.045); }
.main-nav { min-height: 93px; padding: 12px 0; transition: min-height var(--gms-transition); }
.is-scrolled .main-nav { min-height: 72px; }
.brand { gap: 11px; margin: 0; padding: 0; color: var(--gms-ink); white-space: normal; font-family: var(--gms-font-body); font-size: clamp(18px, 1.65vw, 22px); font-weight: 700; line-height: 1.15; letter-spacing: -.035em; }
.brand:hover { color: var(--gms-ink); }
.brand-mark { object-fit: contain; width: 43px; height: 43px; }
.nav-links { gap: clamp(17px, 2.4vw, 37px); }
.nav-links .nav-link { position: relative; padding: 10px 0 !important; font-size: 14px; font-family: var(--gms-font-head); font-weight: 500; color: #292c29; letter-spacing: -.045em; }
.nav-links .nav-link::after { content: ""; position: absolute; bottom: 5px; left: 0; width: 0; height: 2px; background: var(--gms-accent-deep); transition: width var(--gms-transition); }
.nav-links .nav-link:hover, .nav-links .nav-link.is-active { color: var(--gms-accent-dark); }
.nav-links .nav-link:hover::after, .nav-links .nav-link.is-active::after { width: 100%; }
.menu-toggle { border: 1px solid var(--gms-line); border-radius: 999px; display: inline-flex; align-items: center; gap: 13px; padding: 9px 16px; font: 600 14px var(--gms-font-head); color: var(--gms-ink); }
.menu-toggle:hover { background: var(--gms-accent); border-color: var(--gms-accent); }
.menu-chev { font-size: 25px; transform: translateY(-3px); transition: transform var(--gms-transition); }
.menu-toggle[aria-expanded="true"] .menu-chev { transform: rotate(180deg) translateY(2px); }
/* shared labels / buttons */
.section-index { display: block; text-transform: uppercase; letter-spacing: .105em; font: 500 12px/1.5 var(--gms-font-head); color: #757975; }
.section-rule { height: 2px; width: 100%; background: var(--gms-accent); }
.btn-accent { display: inline-flex; align-items: center; justify-content: center; gap: 20px; padding: 16px 25px; min-height: 58px; border-radius: 999px; border: 1px solid transparent; background: var(--gms-accent); color: #1a1b18; font: 500 15px/1.4 var(--gms-font-head); letter-spacing: -.045em; transition: background var(--gms-transition), transform var(--gms-transition), box-shadow var(--gms-transition); }
.btn-accent:hover { background: #c5ef81; color: #181818; transform: translateY(-3px); box-shadow: 0 13px 28px rgba(105,135,59,.18); }
.btn-accent:active { transform: translateY(0); box-shadow: none; }
.link-arrow { display: inline-block; font-size: 22px; line-height: .75; font-family: var(--gms-font-body); font-weight: 400; transition: transform var(--gms-transition); }
a:hover .link-arrow { transform: translateX(7px); }
.text-link { display: inline-flex; align-items: center; gap: 15px; padding: 9px 0 5px; border-bottom: 1px solid currentColor; font: 500 14px/1.5 var(--gms-font-head); letter-spacing: -.035em; transition: color var(--gms-transition), border-color var(--gms-transition); }
.text-link:hover { color: var(--gms-accent-dark); border-color: var(--gms-accent-deep); }
/* hero */
.hero-section { padding-top: clamp(78px, 7.3vw, 125px); padding-bottom: clamp(55px, 6.2vw, 108px); }
.hero-grid { min-height: 500px; }
.hero-content { padding-right: 15px; position: relative; z-index: 2; }
.hero-section h1 { max-width: 900px; font: 500 clamp(42px, 3.55vw, 65px)/1.18 var(--gms-font-head); letter-spacing: -.085em; margin: 0 0 34px; overflow-wrap: normal; }
.hero-lead { font-size: clamp(17px, 1.38vw, 21px); color: var(--gms-body); line-height: 1.5; letter-spacing: -.018em; margin: 0 0 33px; }
.hero-art { position: relative; min-height: 460px; display: flex; align-items: center; justify-content: center; }
.hero-ribbon { width: 122%; max-width: none; height: auto; max-height: 580px; object-fit: contain; mix-blend-mode: multiply; transform: translate(0, -2%); filter: contrast(1.07); user-select: none; }
/* three traits */
.pillars-section { padding-bottom: 45px; }
.pillars-grid { padding: 42px 0 35px; }
.pillar-block { height: 100%; min-height: 250px; padding: 24px 37px 26px; transition: background var(--gms-transition), transform var(--gms-transition); border-radius: 3px; }
.pillars-grid > div:first-child .pillar-block { padding-left: 4px; padding-right: 42px; }
.pillars-grid > div:not(:first-child) .pillar-block { border-left: 1px solid var(--gms-line); }
.pillar-block:hover { background: var(--gms-paper-strong); transform: translateY(-3px); }
.pillar-block h3 { margin: 16px 0 17px; font: 500 clamp(21px, 1.55vw, 25px)/1.37 var(--gms-font-head); letter-spacing: -.065em; }
.pillar-block p { font-size: 17px; color: var(--gms-body); line-height: 1.58; max-width: 330px; margin: 0 0 18px; }
.decorative-dash { display: block; width: 28px; height: 2px; background: #898f86; transition: background var(--gms-transition), width var(--gms-transition); }
.pillar-block:hover .decorative-dash { width: 55px; background: var(--gms-accent-dark); }
/* large alternating content rows */
.feature-section { padding: 16px 0; }
.feature-row { position: relative; padding: clamp(70px, 8.2vw, 122px) 24px; border-top: 1px solid var(--gms-line); margin-inline: 0; border-radius: 4px; transition: background var(--gms-transition); }
.feature-row:hover { background: rgba(220,244,166,.24); }
.feature-visual { aspect-ratio: 1.73; position: relative; overflow: hidden; background: #ededeb; }
.feature-visual img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.04); transition: transform 650ms cubic-bezier(.18,.65,.2,1), filter 500ms ease; }
.feature-row:hover .feature-visual img { transform: scale(1.045); filter: grayscale(1) contrast(1.13); }
.visual-index { position: absolute; left: 17px; bottom: 14px; padding: 5px 10px; color: #252925; font: 500 10px var(--gms-font-head); background: rgba(250,250,246,.86); letter-spacing: .065em; }
.feature-copy { max-width: 580px; padding: 20px 16px 22px 36px; }
.feature-copy-left { padding: 20px 42px 20px 4px; }
.feature-copy h2 { font: 500 clamp(33px, 3vw, 47px)/1.19 var(--gms-font-head); letter-spacing: -.077em; margin: 13px 0 25px; }
.feature-copy p { color: var(--gms-body); font-size: 18px; line-height: 1.67; margin-bottom: 15px; }
.feature-copy .text-link { margin-top: 19px; }
/* timeline / intentionally horizontal */
.timeline-section { padding: 88px 0 85px; }
.section-heading-line { padding: 34px 0 55px; }
.section-heading-line h2 { font: 500 clamp(30px, 2.6vw, 40px)/1.2 var(--gms-font-head); letter-spacing: -.065em; margin: 13px 0 0; }
.compact-link { font-size: 13px; flex-shrink: 0; }
.timeline-scroll { overflow-x: auto; overflow-y: hidden; padding-top: 16px; margin-top: -16px; padding-bottom: 24px; scrollbar-width: thin; scrollbar-color: #b7c58b transparent; }
.milestone-track { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); list-style: none; margin: 0; padding: 0; min-width: 1080px; }
.milestone { border-top: 1px solid #aeb5ae; position: relative; padding: 34px 24px 16px 4px; min-height: 270px; transition: background var(--gms-transition); }
.milestone:hover { background: var(--gms-paper-strong); }
.milestone-marker { position: absolute; top: -7px; left: 0; display: block; width: 13px; height: 13px; background: var(--gms-canvas); border-radius: 50%; border: 1.5px solid #737a74; transition: background var(--gms-transition), box-shadow var(--gms-transition), transform var(--gms-transition); }
.milestone.is-done .milestone-marker { background: #1a1d1a; border-color: #1a1d1a; }
.milestone.is-current .milestone-marker { background: var(--gms-accent); border: 2px solid #689333; box-shadow: 0 0 0 5px rgba(220,244,166,.5); }
.milestone:hover .milestone-marker { transform: scale(1.35); background: var(--gms-accent-deep); border-color: #567831; }
.milestone-date { display: block; font: 500 12px/1.5 var(--gms-font-head); color: var(--gms-muted); text-transform: uppercase; letter-spacing: .06em; }
.milestone h3 { margin: 12px 0 11px; font: 500 17px/1.42 var(--gms-font-head); letter-spacing: -.065em; }
.milestone p { font-size: 15px; line-height: 1.58; color: var(--gms-body); margin: 0 0 10px; }
.milestone-state { display: inline-block; font: 500 11px var(--gms-font-head); color: #737875; text-transform: uppercase; letter-spacing: .045em; }
.is-current .milestone-state { color: #4e7c1f; }
.mobile-swipe-hint { display: none; font: 12px var(--gms-font-head); color: var(--gms-muted); }
/* founder / no fictional portrait */
.initiator-section { padding: 18px 0 105px; }
.initiator-section .row { padding-top: 53px; }
.initiator-art { position: relative; min-height: 310px; max-width: 320px; padding: 21px 24px; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; background: linear-gradient(145deg,#f0f1eb 0%,#e4eccf 100%); border: 1px solid #e6e9df; transition: background var(--gms-transition), transform var(--gms-transition); }
.initiator-art::after { content: ""; position: absolute; width: 75%; height: 90%; right: -19%; top: 10%; border: 1px solid rgba(66,75,55,.17); border-radius: 50%; transform: rotate(32deg); box-shadow: -14px 16px 0 -13px rgba(66,75,55,.2), -30px 31px 0 -29px rgba(66,75,55,.2), -48px 49px 0 -47px rgba(66,75,55,.2); }
.initiator-art:hover { transform: translateY(-3px); background: var(--gms-accent); }
.init-art-kicker, .init-art-footnote { font: 500 11px/1.45 var(--gms-font-head); color: #4d5a45; letter-spacing: .05em; z-index: 1; }
.init-art-monogram { align-self: center; font: 500 clamp(67px, 8vw, 108px)/1 var(--gms-font-head); letter-spacing: -.11em; color: #242824; z-index: 1; }
.init-art-monogram span { color: #79a344; }
.initiator-copy { max-width: 760px; }
.initiator-copy h2 { margin: 12px 0 7px; font: 500 clamp(37px, 3.4vw, 50px)/1.18 var(--gms-font-head); letter-spacing: -.08em; }
.initiator-role { font-size: 18px; font-weight: 500; color: #424642; margin-bottom: 20px; }
.initiator-copy > p:not(.initiator-role) { font-size: 18px; line-height: 1.7; color: var(--gms-body); }
.initiator-copy .text-link { margin-top: 15px; }
/* footer */
.site-footer { padding: 8px 0 0; }
.site-footer .row { padding: 54px 0 68px; }
.footer-brand { font-family: var(--gms-font-body); font-size: 17px; font-weight: 700; letter-spacing: -.04em; }
.footer-brand:hover { color: var(--gms-ink); }
.footer-description { margin: 20px 0 11px; font-size: 15px; line-height: 1.57; color: var(--gms-body); max-width: 295px; }
.footer-domain { font: 500 13px var(--gms-font-head); color: #5e6754; }
.footer-heading { font: 500 12px var(--gms-font-head); letter-spacing: .08em; text-transform: uppercase; margin: 7px 0 21px; }
.footer-list { list-style: none; padding: 0; margin: 0; }
.footer-list li { margin: 0 0 9px; }
.footer-list a, .footer-text { font-size: 15px; line-height: 1.5; color: var(--gms-body); }
.footer-list a:hover { color: var(--gms-accent-dark); }
.footer-text { max-width: 195px; }
.footer-bottom { border-top: 1px solid var(--gms-line); padding: 21px 0 30px; color: var(--gms-muted); font: 12px/1.5 var(--gms-font-head); }
.footer-bottom a { display: inline-flex; align-items: center; gap: 9px; color: var(--gms-body); }
.footer-bottom a:hover { color: var(--gms-accent-dark); }
.footer-bottom .link-arrow { font-size: 18px; }
/* tablet */
@media (max-width: 1199.98px) {
  .hero-section h1 { font-size: clamp(36px,3.5vw,50px); }
  .hero-art { min-height: 380px; }
  .hero-ribbon { width: min(133%, calc(100% + 64px)); }
  .pillar-block { padding-inline: 23px; }
  .pillars-grid > div:first-child .pillar-block { padding-right: 24px; }
  .pillar-block h3 { font-size: 21px; }
  .feature-row { padding-inline: 10px; }
  .feature-copy { padding-left: 12px; }
  .feature-copy-left { padding-right: 20px; }
}
/* mobile navigation + stacked layout */
@media (max-width: 991.98px) {
  .main-nav { min-height: 78px; }
  .is-scrolled .main-nav { min-height: 68px; }
  .site-header .navbar-collapse { border-top: 1px solid var(--gms-line); margin-top: 15px; padding-top: 12px; padding-bottom: 18px; }
  .nav-links { gap: 0; align-items: stretch !important; }
  .nav-links .nav-link { display: block; padding: 13px 3px !important; font-size: 16px; }
  .nav-links .nav-link::after { bottom: 8px; }
  .hero-section { padding-top: 45px; padding-bottom: 70px; }
  .hero-grid { min-height: unset; }
  .desktop-only { display: none; }
  .hero-content { padding-right: 0; }
  .hero-section h1 { max-width: 760px; font-size: clamp(38px,5.6vw,61px); }
  .hero-art { max-height: 420px; min-height: 310px; margin-top: 8px; }
  .hero-ribbon { width: 95%; max-height: 390px; transform: translateY(-3%); }
  .feature-copy, .feature-copy-left { max-width: 100%; padding: 13px 3px 8px; }
  .feature-row { padding: 75px 8px; }
  .feature-visual { aspect-ratio: 2.0; }
  .timeline-section { padding: 60px 0; }
  .initiator-section { padding-bottom: 85px; }
  .initiator-art { min-height: 285px; }
}
@media (max-width: 767.98px) {
  .gms-container { width: calc(100% - 40px); }
  body { font-size: 17px; }
  .hero-section h1 { font-size: clamp(35px,7.2vw,54px); margin-bottom: 24px; }
  .hero-lead { font-size: 17px; }
  .lead-break { display: none; }
  .hero-art { min-height: 280px; }
  .hero-ribbon { width: 100%; }
  .pillars-grid { padding-top: 22px; padding-bottom: 15px; }
  .pillar-block, .pillars-grid > div:first-child .pillar-block { min-height: unset; padding: 26px 5px 28px; }
  .pillars-grid > div:not(:first-child) .pillar-block { border-left: 0; border-top: 1px solid var(--gms-line); }
  .pillar-block h3 { margin: 12px 0; font-size: 23px; }
  .pillar-block p { max-width: 100%; font-size: 17px; }
  .feature-section { padding: 5px 0; }
  .feature-row { padding: 59px 0; }
  .feature-visual { aspect-ratio: 1.75; }
  .feature-copy h2 { font-size: clamp(29px, 6vw, 42px); }
  .feature-copy p { font-size: 17px; }
  .section-heading-line { align-items: start !important; flex-direction: column; gap: 17px !important; padding-bottom: 45px; }
  .milestone-track { min-width: 1050px; }
  .milestone { min-height: 255px; }
  .mobile-swipe-hint { display: block; margin: 6px 0 0; }
  .initiator-art { max-width: 100%; min-height: 280px; }
  .site-footer .row { padding-bottom: 39px; }
}
@media (max-width: 420px) {
  .gms-container { width: calc(100% - 32px); }
  .brand { font-size: 16px; }
  .brand-mark { width: 34px; height: 37px; }
  .menu-toggle { padding: 8px 12px; gap: 7px; font-size: 12px; }
  .hero-section h1 { font-size: clamp(31px, 8.2vw, 39px); line-height: 1.25; }
  .hero-art { min-height: 220px; }
  .btn-accent { padding: 15px 18px; gap: 10px; font-size: 13px; }
  .feature-row { padding-block: 55px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* GMS V2.1 — header-only additions: Community + EN/DE dropdown */
.brand-logo { width: clamp(190px, 24vw, 300px); height: auto; object-fit: contain; }
.footer-logo { width: min(100%, 250px); height: auto; object-fit: contain; }
.nav-links .nav-link.is-placeholder { cursor: default; }
.nav-links .nav-link.is-placeholder:hover { color: #292c29; }
.nav-links .nav-link.is-placeholder::after { display: none; }
.nav-language { border-left: 1px solid var(--gms-line); margin-left: clamp(15px, 2.15vw, 31px); padding-left: clamp(14px, 2vw, 29px); }
.language-trigger { display: inline-flex; align-items: center; gap: 11px; background: transparent; border: 0; padding: 10px 0; color: #292c29; font: 500 14px/1.4 var(--gms-font-head); letter-spacing: -.045em; transition: color var(--gms-transition); }
.language-trigger:hover, .language-trigger[aria-expanded="true"] { color: var(--gms-accent-dark); }
.language-chevron { display: inline-block; width: 8px; height: 8px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translate(-2px, -2px); transition: transform var(--gms-transition); }
.language-trigger[aria-expanded="true"] .language-chevron { transform: rotate(225deg) translate(-1px, -1px); }
.language-menu { min-width: 170px; border: 1px solid var(--gms-line); border-radius: 4px; padding: 7px; background: var(--gms-canvas); box-shadow: 0 14px 30px rgba(20,30,14,.09); }
.language-menu .dropdown-item { border-radius: 3px; padding: 10px 12px; color: var(--gms-ink); font: 500 14px/1.4 var(--gms-font-head); letter-spacing: -.03em; }
.language-menu .dropdown-item:hover, .language-menu .dropdown-item:focus { background: var(--gms-accent); color: var(--gms-ink); }
.language-menu .dropdown-item.is-current::after { content: "✓"; float: right; color: var(--gms-accent-dark); }
/* At intermediate widths the header collapses while existing page sections retain their breakpoints. */
@media (min-width: 992px) and (max-width: 1199.98px) {
  .site-header .navbar-collapse { border-top: 1px solid var(--gms-line); margin-top: 15px; padding-top: 12px; padding-bottom: 18px; }
  .nav-links { gap: 0; align-items: stretch !important; }
  .nav-links .nav-link { display: block; padding: 13px 3px !important; font-size: 16px; }
  .nav-links .nav-link::after { bottom: 8px; }
}
@media (max-width: 1199.98px) {
  .nav-language { margin: 12px 0 0; padding: 10px 3px 2px; border-left: 0; border-top: 1px solid var(--gms-line); }
  .language-trigger { width: 100%; justify-content: flex-start; font-size: 16px; min-height: 43px; }
  .language-menu { position: static !important; transform: none !important; width: 100%; margin: 5px 0 0 !important; box-shadow: none; }
}