/* GTN Gruppe – Website gtn-gruppe.de
   Corporate Design (Vorschlag 17.10.2026): Schwarz als Bühne, Weiß als Arbeitsfläche (Impressum, Datenschutz).
   Nur Schwarz/Weiß, Grau ausschließlich als Deckkraft. Farbe nur in den Venture-Logos. Montserrat selbst gehostet (SIL OFL). */

@font-face{font-family:'Montserrat';font-style:normal;font-weight:300;font-display:swap;src:url('assets/fonts/Montserrat-Light.ttf') format('truetype')}
@font-face{font-family:'Montserrat';font-style:normal;font-weight:400;font-display:swap;src:url('assets/fonts/Montserrat-Regular.ttf') format('truetype')}
@font-face{font-family:'Montserrat';font-style:normal;font-weight:500;font-display:swap;src:url('assets/fonts/Montserrat-Medium.ttf') format('truetype')}
@font-face{font-family:'Montserrat';font-style:normal;font-weight:700;font-display:swap;src:url('assets/fonts/Montserrat-Bold.ttf') format('truetype')}

:root{
  --l:100;
  --bg:hsl(0 0% calc(var(--l) * 1%));
  --fg:#000000;
  --fg70:rgba(0,0,0,.72); --fg45:rgba(0,0,0,.5); --fg20:rgba(0,0,0,.2); --fg08:rgba(0,0,0,.06);
  --inv:0; --body-weight:300; color-scheme:light;
  --e1:#36a9e1; --e2:#69c0ac; --f3:#f2c12e;
  --font:'Montserrat',-apple-system,BlinkMacSystemFont,'Helvetica Neue',Arial,sans-serif;
}
/* Schrift wird hell, sobald der Hintergrund dunkler als 46 % ist (theme.js setzt data-fg) */
:root[data-fg="light"]{
  --fg:#ffffff;
  --fg70:rgba(255,255,255,.75); --fg45:rgba(255,255,255,.52); --fg20:rgba(255,255,255,.22); --fg08:rgba(255,255,255,.08);
  --inv:1; --body-weight:400; color-scheme:dark;
}
.inv{filter:invert(var(--inv))}
:root:not([data-fg="light"]) .only-dark{display:none}
:root[data-fg="light"] .only-light{display:none}

/* Graustufen-Steuerung (Knopf + Regler) */
.tone{display:flex;align-items:center;gap:10px}
.tone-btn{width:34px;height:34px;border-radius:50%;border:1px solid var(--fg20);background:transparent;color:var(--fg);display:grid;place-items:center;cursor:pointer;padding:0}
.tone-btn:hover{border-color:var(--fg)}
.tone-btn svg{width:20px;height:20px;display:block}
.tone-lbl{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.tone-range{-webkit-appearance:none;appearance:none;width:128px;height:6px;margin:0;border-radius:3px;background:linear-gradient(90deg,#000 0%,#808080 50%,#fff 100%);box-shadow:0 0 0 1px var(--fg20);cursor:pointer}
.tone-range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--bg);border:2px solid var(--fg)}
.tone-range::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--bg);border:2px solid var(--fg)}
.tone-range:focus-visible,.tone-btn:focus-visible{outline:2px solid var(--fg);outline-offset:3px}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;font-family:var(--font);font-weight:var(--body-weight);font-size:17px;line-height:1.65;background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
a:focus-visible,button:focus-visible{outline:2px solid var(--fg);outline-offset:3px}
.wrap{max-width:1120px;margin:0 auto;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-weight:300;letter-spacing:-.02em;line-height:1.08;margin:0;text-wrap:balance}
h1{font-size:clamp(2.6rem,7vw,5.2rem);line-height:1.02}
h2{font-size:clamp(1.9rem,3.8vw,2.8rem);margin:12px 0 28px}
h3{font-size:1.5rem}
p{margin:0 0 16px;max-width:62ch}
strong{font-weight:500}
.eyebrow,.k{font-size:.74rem;letter-spacing:.22em;text-transform:uppercase;font-weight:500;color:var(--fg45);margin:0 0 6px}
.muted{color:var(--fg70)}
.dot{display:inline-block;width:.38em;height:.38em;border-radius:50%;background:currentColor;vertical-align:middle;margin:0 .55em .1em}
.eyebrow .dot,.k .dot{opacity:.8}

/* Header */
.site-header{position:sticky;top:0;z-index:10;background:var(--bg);border-bottom:1px solid var(--fg20)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:18px;flex-wrap:wrap}
.nav .logo img{height:40px;width:auto}
.nav nav{display:flex;gap:28px;flex-wrap:wrap}
.nav nav a{font-size:.76rem;letter-spacing:.18em;text-transform:uppercase;font-weight:500;color:var(--fg70);text-decoration:none;padding:6px 0}
.nav nav a:hover{color:var(--fg)}

/* Hero */
.hero{padding-block:120px 104px}
.hero .lead{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--fg70);max-width:58ch;margin:28px 0 40px}
.actions{display:flex;gap:28px;align-items:center;flex-wrap:wrap}
.btn{display:inline-block;border:1px solid var(--fg);border-radius:999px;padding:13px 26px;font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;font-weight:500;text-decoration:none;color:var(--fg)}
.btn:hover{background:var(--fg);color:var(--bg)}
.link{font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;font-weight:500;text-decoration:none;color:var(--fg70);border-bottom:1px solid var(--fg45);padding-bottom:4px}
.link:hover{color:var(--fg)}

/* Sections */
.sec{border-top:1px solid var(--fg20);padding-block:96px}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.tile{border:1px solid var(--fg20);border-radius:6px;padding:36px 32px 32px;display:flex;flex-direction:column;gap:20px;min-width:0}
.tile .bar{display:block;height:4px;border-radius:2px;width:72px}
.bar.e{background:linear-gradient(90deg,var(--e1),var(--e2))}
.bar.f{background:linear-gradient(90deg,var(--e1),var(--e2),var(--f3))}
.bar.g{background:var(--fg);width:4px;border-radius:50%}
.tile img{height:64px;width:auto;align-self:flex-start}
.tile p{color:var(--fg70);margin:0}
.tile .more{margin-top:auto;align-self:flex-start;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;font-weight:500;color:var(--fg);text-decoration:none;border-bottom:1px solid var(--fg45);padding-bottom:4px}
.tile .more:hover{border-color:var(--fg)}
.tile.next{border-style:dashed}
.tile.next h3{font-size:1.6rem}
.dotbig{display:block;width:18px;height:18px;border-radius:50%;background:var(--fg);margin:18px 0 6px}

.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:48px 40px}
.cols>*{min-width:0}
.col h3{margin:0 0 12px}
.col p{color:var(--fg70)}
.quote{font-weight:300;font-size:clamp(1.6rem,3.4vw,2.4rem);line-height:1.2;letter-spacing:-.015em;max-width:22ch;margin:72px 0 0}

.person{display:grid;grid-template-columns:minmax(220px,380px) 1fr;gap:48px;align-items:center}
.person img{width:100%;border-radius:6px}
.person h3{font-size:2rem;margin:0 0 8px}
.person .role{margin-bottom:22px}
.person p{color:var(--fg70)}
@media (max-width:720px){.person{grid-template-columns:1fr}.person img{max-width:380px}}

#kontakt p a{text-decoration:none;border-bottom:1px solid var(--fg45)}
#kontakt p a:hover{border-color:var(--fg)}
#kontakt .k{margin-top:26px}
#kontakt .k:first-child{margin-top:0}

/* Footer */
.site-footer{border-top:1px solid var(--fg20);padding-block:44px 48px;font-size:.84rem;color:var(--fg45)}
.frow{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.fbrand{display:flex;align-items:center;gap:14px;color:var(--fg70)}
.fbrand img{height:22px;width:auto}
.flinks{display:flex;gap:24px;flex-wrap:wrap}
.flinks a{text-decoration:none;color:var(--fg45)}
.flinks a:hover{color:var(--fg)}
.copy{margin:22px 0 0;color:var(--fg45);font-size:.78rem}

/* Rechtliches (Weiß = Arbeitsfläche) */
.legal .wrap{max-width:780px}
.legal main{padding-block:72px 96px}
.legal h1{font-size:clamp(2rem,5vw,3rem);margin:8px 0 36px}
.legal h2{font-size:1.05rem;font-weight:500;letter-spacing:0;margin:40px 0 12px}
.legal p,.legal li{color:var(--fg70)}
.legal .block{border:1px solid var(--fg20);border-radius:6px;padding:20px 24px;margin:0 0 18px}
.legal .block p:last-child{margin-bottom:0}
.legal a{text-decoration:none;border-bottom:1px solid var(--fg45)}
.legal .nav .logo img{height:40px}
.legal .back{font-size:.76rem;letter-spacing:.18em;text-transform:uppercase;font-weight:500;color:var(--fg70);text-decoration:none}
.legal ul{padding-left:1.1em}
.legal .stand{font-size:.8rem;color:var(--fg45)}

/* v2: Fundament, Entscheiden, Regeln, Haltung-Seite */
.values{display:grid;grid-template-columns:minmax(220px,360px) 1fr;gap:56px;align-items:center}
.values>*{min-width:0}
.ring{width:100%;max-width:360px;height:auto;display:block;font-family:var(--font)}
.ring text{font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;font-weight:500;fill:var(--fg70)}
.vlist{display:grid;gap:28px}
.vlist h3{font-size:1.25rem;margin:0 0 6px}
.vlist p{color:var(--fg70);margin:0}
.closing{font-weight:300;font-size:clamp(1.4rem,2.8vw,2rem);line-height:1.25;letter-spacing:-.015em;max-width:26ch;margin:64px 0 0}
@media (max-width:720px){.values{grid-template-columns:1fr}.ring{max-width:280px}}
.intro{font-size:1.1rem;color:var(--fg70);max-width:60ch;margin:-8px 0 40px}
.qlist{list-style:none;padding:0;margin:0;display:grid;gap:0;border-top:1px solid var(--fg20);counter-reset:q}
.qlist li{display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:baseline;padding:26px 0;border-bottom:1px solid var(--fg20)}
.qlist li::before{counter-increment:q;content:counter(q);font-weight:300;font-size:1.6rem;line-height:1;color:var(--fg45);min-width:1.2em}
.qlist .q{font-weight:300;font-size:clamp(1.3rem,2.6vw,1.8rem);letter-spacing:-.01em;line-height:1.2}
.qlist .v{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;font-weight:500;color:var(--fg45);white-space:nowrap}
@media (max-width:640px){.qlist li{grid-template-columns:auto 1fr}.qlist .v{grid-column:2}}
.rules{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:36px 32px}
.rules>*{min-width:0}
.rules h3{font-size:1.2rem;margin:0 0 8px}
.rules p{color:var(--fg70);margin:0}
.sec .link{display:inline-block;margin-top:44px}
.stand{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;font-weight:500;color:var(--fg45)}
.site-footer .stand{margin:18px 0 0;letter-spacing:.1em;text-transform:none;font-weight:400}
/* Haltung (Lesetext, Weiß) */
.reading main{padding-block:72px 96px}
.reading .wrap{max-width:780px}
.reading h1{font-size:clamp(2.2rem,5vw,3.4rem);margin:8px 0 18px}
.reading h2{font-size:clamp(1.4rem,2.8vw,1.9rem);margin:56px 0 16px}
.reading h3{font-size:1.05rem;font-weight:500;letter-spacing:0;margin:26px 0 8px}
.reading p,.reading li{color:var(--fg70)}
.reading p{max-width:66ch}
.reading ul,.reading ol{padding-left:1.2em}
.reading li{margin-bottom:8px}
.reading .lead{color:var(--fg);font-size:1.15rem;max-width:60ch;margin:0 0 40px}
.reading .tbl{overflow-x:auto;margin:16px 0 0}
.reading table{border-collapse:collapse;width:100%;min-width:640px;font-size:.92rem}
.reading th,.reading td{text-align:left;vertical-align:top;padding:12px 14px 12px 0;border-bottom:1px solid var(--fg20);color:var(--fg70)}
.reading th{font-weight:500;color:var(--fg);font-size:.74rem;letter-spacing:.18em;text-transform:uppercase}
.reading .back{font-size:.76rem;letter-spacing:.18em;text-transform:uppercase;font-weight:500;color:var(--fg70);text-decoration:none}
.reading .nav .logo img{height:40px}
.reading a{text-decoration:none;border-bottom:1px solid var(--fg45)}
.reading .versions{border:1px solid var(--fg20);border-radius:6px;padding:18px 22px;margin-top:12px}
.reading .versions p{margin:0}

.intro.after{margin:32px 0 0}

/* v2.1: Ring mit HTML-Labels (nichts wird abgeschnitten); Weiß-Fassung /weiss */
.values{grid-template-columns:minmax(300px,480px) 1fr}
.ringbox{position:relative;width:100%;max-width:480px;padding:34px 140px;color:var(--fg)}
.ring{width:100%;height:auto;display:block;overflow:visible;max-width:none}
.rl{position:absolute;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;font-weight:500;color:var(--fg70);white-space:nowrap}
.rl.top{top:0;left:50%;transform:translateX(-50%)}
.rl.bottom{bottom:0;left:50%;transform:translateX(-50%)}
.rl.left{left:0;top:50%;transform:translateY(-50%)}
.rl.right{right:0;top:50%;transform:translateY(-50%)}
@media (max-width:900px){.values{grid-template-columns:1fr}.ringbox{max-width:300px;padding:0}.rl{display:none}}

/* v3: Wissensseite */
.wissen .wrap{max-width:960px}
.wissen section{padding-top:24px}
.wissen h2{margin-top:64px}
.small{font-size:.86rem;color:var(--fg70)}
.toc{display:flex;flex-wrap:wrap;gap:10px 22px;margin:8px 0 0;padding:16px 0;border-top:1px solid var(--fg20);border-bottom:1px solid var(--fg20)}
.reading .toc a{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;font-weight:500;color:var(--fg70);border:0}
.reading .toc a:hover{color:var(--fg)}
.chain{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin:18px 0 18px}
.chain.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.chain div{border:1px solid var(--fg);border-radius:6px;padding:14px;display:flex;flex-direction:column;gap:6px}
.chain div.ext{border-style:dashed;border-color:var(--fg45)}
.chain b{font-weight:500;font-size:.95rem}
.chain span{font-size:.8rem;color:var(--fg70);line-height:1.45}
@media (max-width:760px){.chain,.chain.three{grid-template-columns:1fr}}
.pill{display:inline-block;font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;font-weight:500;border:1px solid var(--fg45);border-radius:999px;padding:2px 9px;color:var(--fg70);vertical-align:middle;white-space:nowrap;line-height:1.6}
.pill.solid{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.card{border:1px solid var(--fg20);border-radius:6px;padding:22px 24px;margin:0 0 14px}
.card.ext{border-style:dashed;border-color:var(--fg45)}
.reading .card h3{margin:0 0 10px;font-size:1.15rem;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.card p:last-child{margin-bottom:0}
.note{font-size:.86rem;color:var(--fg70);margin-top:12px}
.kv{display:grid;grid-template-columns:150px 1fr;gap:8px 18px;font-size:.92rem;margin:10px 0 0}
.kv dt{font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;font-weight:500;color:var(--fg45);padding-top:4px}
.kv dd{margin:0;color:var(--fg70);min-width:0}
@media (max-width:640px){.kv{grid-template-columns:1fr;gap:2px}.kv dd{margin-bottom:8px}}
.plist{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}
.pr{border:1px solid var(--fg20);border-radius:6px;padding:18px 20px;min-width:0}
.reading .pr h3{margin:4px 0 8px;font-size:1.05rem;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.pr p:last-child{margin:0;font-size:.92rem}
.formal{display:block;border-left:2px solid var(--fg);padding:10px 14px;margin:6px 0 12px;background:var(--fg08);font-family:var(--font);font-size:.88rem;color:var(--fg);overflow-x:auto;white-space:pre-wrap;word-break:break-word}
.reading table.narrow{min-width:0}
.search{width:100%;max-width:420px;font:inherit;font-size:.95rem;padding:10px 16px;border:1px solid var(--fg45);border-radius:999px;background:var(--bg);color:var(--fg);margin:6px 0 10px}
.search:focus-visible{outline:2px solid var(--fg);outline-offset:2px}
.gl-group h3{margin-top:34px}
details.term{border-bottom:1px solid var(--fg20)}
details.term:first-of-type{border-top:1px solid var(--fg20)}
details.term summary{cursor:pointer;list-style:none;padding:13px 0;display:flex;gap:6px 14px;align-items:baseline;flex-wrap:wrap}
details.term summary::-webkit-details-marker{display:none}
details.term summary::before{content:"+";width:1em;color:var(--fg45);font-weight:300}
details.term[open] summary::before{content:"–"}
details.term summary:focus-visible{outline:2px solid var(--fg);outline-offset:2px}
details.term .t{font-weight:500;color:var(--fg)}
details.term .vals{font-size:.74rem;color:var(--fg45);letter-spacing:.04em}
details.term .body{padding:0 0 18px 1.6em}
ul.qa{list-style:none;padding:0;display:grid;gap:14px}
ul.qa li{border-top:1px solid var(--fg20);padding-top:12px;margin:0}
.reading .versions + .versions{margin-top:10px}

/* Porträt freigestellt: kein Rahmen, läuft unten weich aus, wirkt auf jeder Graustufe */
.person img.cutout{border-radius:0;background:none}

/* GTN KI */
.chain.eight{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:760px){.chain.eight{grid-template-columns:repeat(2,minmax(0,1fr))}}
.reading ol.never{list-style:none;padding:0;counter-reset:n;display:grid;gap:14px;margin:16px 0 24px}
.reading ol.never li{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:baseline;border-top:1px solid var(--fg20);padding-top:14px;margin:0}
.reading ol.never li::before{counter-increment:n;content:counter(n);font-weight:300;font-size:1.5rem;line-height:1;color:var(--fg45);min-width:1em}

/* Sprachwahl */
.lang-select{font:inherit;font-size:.72rem;letter-spacing:.14em;font-weight:500;color:var(--fg);background:transparent;border:1px solid var(--fg20);border-radius:999px;padding:7px 26px 7px 12px;cursor:pointer;-webkit-appearance:none;appearance:none;background-image:linear-gradient(45deg,transparent 50%,currentColor 50%),linear-gradient(135deg,currentColor 50%,transparent 50%);background-position:calc(100% - 13px) 50%,calc(100% - 9px) 50%;background-size:4px 4px,4px 4px;background-repeat:no-repeat}
.lang-select:hover{border-color:var(--fg)}
.lang-select:focus-visible{outline:2px solid var(--fg);outline-offset:3px}
.lang-select option{color:#000;background:#fff}
.legal-note{font-size:.84rem;color:var(--fg70);border:1px solid var(--fg20);border-radius:6px;padding:12px 16px;margin:0 0 28px}

/* Zwei-Spalten-Tabellen (Mensch | KI) gleich breit, damit sie bündig untereinander stehen */
.reading table.pair{table-layout:fixed}
.reading table.pair th,.reading table.pair td{width:50%}