/* i4u Startseite (DE) – editoriales Layout. Nur für /de/ (später /). */
@font-face{font-family:Inter;src:url(/guide/assets/fonts/inter-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:Inter;src:url(/guide/assets/fonts/inter-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:Inter;src:url(/guide/assets/fonts/inter-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:Fraunces;src:url(/guide/assets/fonts/fraunces-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:Fraunces;src:url(/guide/assets/fonts/fraunces-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:Fraunces;src:url(/guide/assets/fonts/fraunces-latin-500-italic.woff2) format("woff2");font-weight:500;font-style:italic;font-display:swap}

:root{
  --teal:#203C3B;--teal-2:#2F5654;--teal-ink:#162B2A;
  --paper:#F7F3EC;--paper-2:#EFE9DE;--white:#FFFDF9;
  --amber:#C9812A;--amber-l:#E9B977;
  --ink:#1C2423;--mute:#5B6866;--rule:#D9D1C2;
  --serif:Fraunces,Georgia,"Times New Roman",serif;
  --sans:Inter,-apple-system,"Segoe UI",Roboto,sans-serif;
  --w:1240px;--g:clamp(20px,4vw,48px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--sans);font-feature-settings:"ss01","cv11";-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
::selection{background:var(--amber-l);color:var(--teal-ink)}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:16px;z-index:10;background:var(--white);padding:8px 12px}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}

.wrap{max-width:var(--w);margin:0 auto;padding:0 var(--g)}
.kicker{font:500 12px/1 var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--mute);display:flex;gap:14px;align-items:center}
.kicker::before{content:"";width:28px;height:1px;background:currentColor;opacity:.6}
.num{font:500 13px/1 var(--sans);letter-spacing:.14em;color:var(--amber)}
h1,h2,h3{font-family:var(--serif);font-weight:500;color:var(--teal);margin:0;letter-spacing:-.015em}
h1 em,h2 em,h3 em{font-style:italic;color:var(--amber)}

/* Header */
.mast{position:sticky;top:0;z-index:20;background:rgba(247,243,236,.92);backdrop-filter:saturate(1.2) blur(8px);-webkit-backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid transparent;transition:border-color .2s}
.mast .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:flex-end;gap:8px;text-decoration:none;color:var(--teal)}
.logo img{width:74px;height:auto}
.logo small{font:600 9px/1 var(--sans);letter-spacing:.22em;padding-bottom:4px}
.nav{display:flex;align-items:center;gap:28px;font-size:14px}
.nav a{text-decoration:none;color:var(--teal);position:relative}
.nav a.link::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;background:var(--teal);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav a.link:hover::after{transform:scaleX(1)}
.nav .lang{font-size:12px;letter-spacing:.14em;color:var(--mute)}
.pill{display:inline-flex;align-items:center;gap:10px;background:var(--teal);color:var(--paper)!important;text-decoration:none;font:500 14px/1 var(--sans);padding:13px 20px;border-radius:999px;transition:background .2s}
.pill:hover{background:var(--teal-ink)}
.pill svg{width:14px;height:14px}
@media(max-width:899px){.nav .link{display:none}.nav{gap:16px}.pill.small{padding:11px 16px;font-size:13px}}

/* Hero */
.hero{padding:clamp(40px,7vw,96px) 0 clamp(48px,7vw,88px)}
.hero .grid{display:grid;gap:40px}
.hero h1{font-size:clamp(44px,7.4vw,104px);line-height:.98;margin:26px 0 30px}
.hero h1 em{display:block}
.lede{font-size:clamp(18px,1.9vw,21px);line-height:1.55;color:var(--teal-2);max-width:31em;margin:0 0 34px}
.actions{display:flex;flex-wrap:wrap;gap:14px 26px;align-items:center}
.text-link{font:500 15px/1 var(--sans);color:var(--teal);text-decoration:none;border-bottom:1px solid var(--rule);padding-bottom:6px;transition:border-color .2s}
.text-link:hover{border-color:var(--teal)}
.portrait{position:relative;margin:0}
.portrait .frame{background:var(--paper-2);border-radius:2px;overflow:hidden;aspect-ratio:4/5}
.portrait img{width:100%;height:100%;object-fit:cover;object-position:50% 20%;filter:saturate(.92) contrast(1.02)}
.portrait figcaption{display:flex;justify-content:space-between;gap:12px;margin-top:12px;font-size:13px;color:var(--mute)}
.portrait figcaption b{font-weight:500;color:var(--teal)}
@media(min-width:900px){
  .hero .grid{grid-template-columns:7fr 4fr;gap:clamp(40px,6vw,96px);align-items:end}
}

/* Trust line */
.proof{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.proof ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr}
.proof li{padding:22px 18px 22px 0;font-size:14px;line-height:1.4;color:var(--mute)}
.proof li b{display:block;font:500 22px/1.15 var(--serif);color:var(--teal);margin-bottom:4px}
@media(min-width:900px){.proof ul{grid-template-columns:repeat(4,1fr)}.proof li{padding:28px 24px;border-left:1px solid var(--rule)}.proof li:first-child{border-left:0;padding-left:0}}

/* Sections */
.sec{padding:clamp(72px,10vw,140px) 0}
.sec-head{display:grid;gap:22px;margin-bottom:clamp(36px,5vw,64px)}
.sec-head h2{font-size:clamp(34px,5vw,64px);line-height:1.02}
.sec-head p{margin:0;color:var(--teal-2);font-size:18px;max-width:30em}
@media(min-width:900px){.sec-head{grid-template-columns:5fr 6fr;align-items:end;gap:clamp(40px,6vw,96px)}.sec-head .label-col{grid-column:1}}

/* Tool list */
.tools{list-style:none;margin:0;padding:0;border-top:1px solid var(--teal)}
.tool a{display:grid;grid-template-columns:44px 1fr auto;gap:8px 18px;padding:28px 0;border-bottom:1px solid var(--rule);text-decoration:none;color:inherit;transition:background .25s}
.tool .n{font:500 14px/1.6 var(--sans);color:var(--amber);padding-top:6px}
.tool h3{font-size:clamp(28px,3.4vw,40px);line-height:1.05}
.tool .cat{display:block;font:500 12px/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--mute);margin-top:10px}
.tool .desc{grid-column:2/4;margin:4px 0 0;color:var(--ink);max-width:34em}
.tool dl{grid-column:2/4;display:flex;flex-wrap:wrap;gap:6px 28px;margin:8px 0 0;font-size:14px}
.tool dl div{display:flex;gap:8px}
.tool dt{color:var(--mute)}
.tool dd{margin:0;color:var(--teal);font-weight:500}
.tool .go{grid-column:3;grid-row:1;align-self:start;width:46px;height:46px;border:1px solid var(--rule);border-radius:50%;display:grid;place-items:center;color:var(--teal);transition:all .25s}
.tool .go svg{width:16px;height:16px}
.tool a:hover .go{background:var(--teal);border-color:var(--teal);color:var(--paper);transform:rotate(-45deg)}
.tool a:hover h3{color:var(--teal-ink)}
@media(min-width:900px){
  .tool a{grid-template-columns:64px 4fr 5fr 3fr 52px;align-items:start;gap:0 28px;padding:36px 0}
  .tool .desc{grid-column:3;margin:6px 0 0}
  .tool dl{grid-column:4;flex-direction:column;gap:6px;margin:8px 0 0}
  .tool .go{grid-column:5}
}
.after-list{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-top:22px;font-size:14px;color:var(--mute)}

/* Method */
.method{background:var(--white);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.criteria{list-style:none;margin:0;padding:0;display:grid;gap:0;counter-reset:c}
.criteria li{padding:26px 0;border-top:1px solid var(--rule);display:grid;gap:8px}
.criteria li:last-child{border-bottom:1px solid var(--rule)}
.criteria h3{font-size:26px}
.criteria p{margin:0;color:var(--teal-2);max-width:30em}
@media(min-width:900px){.criteria{grid-template-columns:1fr 1fr;column-gap:clamp(40px,6vw,96px)}.criteria li{grid-template-columns:56px 1fr}.criteria li .num{padding-top:8px}.criteria li:nth-last-child(2){border-bottom:1px solid var(--rule)}}

/* Guide */
.guide{background:var(--teal);color:var(--paper)}
.guide .grid{display:grid;gap:44px;align-items:center}
.guide h2{color:var(--paper);font-size:clamp(36px,5vw,64px);line-height:1.02;margin:22px 0 22px}
.guide h2 em{color:var(--amber-l)}
.guide .kicker{color:#A9BDB8}
.guide p{color:#DCE5E2;font-size:18px;max-width:30em}
.guide ul{list-style:none;margin:26px 0 34px;padding:0;border-top:1px solid rgba(247,243,236,.18)}
.guide li{padding:14px 0;border-bottom:1px solid rgba(247,243,236,.18);display:flex;gap:18px;color:var(--paper)}
.guide li span{color:var(--amber-l);font:500 13px/1.8 var(--sans);letter-spacing:.1em}
.guide .pill{background:var(--amber);color:var(--teal-ink)!important}
.guide .pill:hover{background:var(--amber-l)}
.guide .fine{font-size:13px;color:#A9BDB8;margin-top:16px}
.cover{justify-self:center;max-width:300px;transform:rotate(-2.5deg);box-shadow:0 40px 60px -30px rgba(0,0,0,.6)}
@media(min-width:900px){.guide .grid{grid-template-columns:7fr 4fr;gap:clamp(40px,6vw,96px)}}

/* About */
.about .grid{display:grid;gap:44px}
.quote{font:500 italic clamp(28px,3.6vw,44px)/1.2 var(--serif);color:var(--teal);margin:0 0 30px;max-width:20em}
.quote::before{content:"„";color:var(--amber)}
.quote::after{content:"“";color:var(--amber)}
.about p{max-width:34em}
.figures{display:grid;grid-template-columns:1fr 1fr;gap:0;margin:34px 0 0;border-top:1px solid var(--rule)}
.figures div{padding:22px 16px 22px 0;border-bottom:1px solid var(--rule)}
.figures b{display:block;font:500 clamp(30px,3.4vw,44px)/1 var(--serif);color:var(--teal);margin-bottom:8px}
.figures span{font-size:14px;color:var(--mute);line-height:1.4;display:block}
.small-portrait{max-width:360px}
.small-portrait img{aspect-ratio:4/5;object-fit:cover;object-position:50% 15%;background:var(--paper-2)}
.small-portrait figcaption{font-size:13px;color:var(--mute);margin-top:10px}
@media(min-width:900px){.about .grid{grid-template-columns:4fr 7fr;gap:clamp(40px,6vw,96px)}.figures{grid-template-columns:repeat(3,1fr)}}

/* Business + contact */
.business{border-top:1px solid var(--rule)}
.business .grid{display:grid;gap:44px}
.business h2{font-size:clamp(32px,4.2vw,52px);line-height:1.05;margin:22px 0 22px}
.business p{color:var(--teal-2);max-width:30em}
.services{list-style:none;margin:24px 0 0;padding:0;border-top:1px solid var(--rule)}
.services li{padding:14px 0;border-bottom:1px solid var(--rule);display:flex;justify-content:space-between;gap:16px}
.services li span{color:var(--mute);font-size:14px}
.contact-form{background:var(--white);border:1px solid var(--rule);padding:clamp(22px,3vw,36px)}
.contact-form label{display:block;font-size:13px;font-weight:500;color:var(--teal);margin:0 0 6px;letter-spacing:.02em}
.contact-form input,.contact-form textarea{width:100%;font:inherit;font-size:16px;color:var(--ink);background:transparent;border:0;border-bottom:1px solid var(--rule);padding:8px 0 10px;margin:0 0 22px;border-radius:0;transition:border-color .2s}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-bottom-color:var(--teal)}
.contact-form textarea{resize:vertical;min-height:120px}
.form-row{display:grid;gap:0 24px}
@media(min-width:620px){.form-row{grid-template-columns:1fr 1fr}}
.form-trap{position:absolute;left:-9999px}
.contact-form .small{font-size:13px;color:var(--mute);margin:0 0 18px}
.contact-form button{border:0;cursor:pointer}
.contact-form button[disabled]{opacity:.6;cursor:wait}
.form-status{font-size:14px;color:var(--mute);margin:14px 0 0}
@media(min-width:900px){.business .grid{grid-template-columns:5fr 6fr;gap:clamp(40px,6vw,96px)}}

/* Footer */
.foot{background:var(--teal-ink);color:#A9BDB8;padding:56px 0 40px;font-size:14px}
.foot .grid{display:grid;gap:28px}
.foot .big{font:500 clamp(26px,3vw,36px)/1.15 var(--serif);color:var(--paper);max-width:18em;margin:0}
.foot nav{display:flex;flex-wrap:wrap;gap:10px 24px}
.foot a{color:#DCE5E2;text-decoration:none}
.foot a:hover{color:var(--paper);text-decoration:underline}
.foot .linklike{background:none;border:0;color:#DCE5E2;font:inherit;padding:0;cursor:pointer}
.foot .bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;border-top:1px solid rgba(247,243,236,.14);padding-top:22px;margin-top:20px}
@media(min-width:900px){.foot .grid{grid-template-columns:1fr auto;align-items:end}}

/* Ruhige Einblendung (nur wenn Bewegung erlaubt) */
@media (prefers-reduced-motion:no-preference){
  .hero .kicker,.hero h1,.hero .lede,.hero .actions,.portrait{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
  .hero h1{animation-delay:.08s}.hero .lede{animation-delay:.16s}.hero .actions{animation-delay:.24s}.portrait{animation-delay:.12s}
  @keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
.about h2{font-size:clamp(36px,4.6vw,60px);line-height:1.02;margin:22px 0 26px}
.about p{color:var(--teal-2);font-size:18px}
/* Foto mit weißem Hintergrund in den Papierton einfärben */
.portrait img,.small-portrait img{mix-blend-mode:multiply}
.small-portrait{background:var(--paper-2)}
.portrait figcaption{flex-direction:column;gap:2px}
.small-portrait{background:none;align-self:start;margin:0}
.small-portrait img{background:var(--paper-2)}
.figures b{white-space:nowrap;font-size:clamp(26px,3vw,40px)}
/* Proportionen große Bildschirme */
.hero h1{font-size:clamp(44px,6.2vw,88px)}
.sec-head h2{font-size:clamp(34px,4.4vw,58px)}
@media(min-width:900px){
  .hero .grid{grid-template-columns:8fr 4fr}
  .sec-head{grid-template-columns:7fr 5fr}
}

/* ---- Optimierung 16.10. ---- */
:root{--amber:#A8661B;--amber-t:#8F5413;--amber-l:#E9B977}
.num,.tool .n,.guide li span{color:var(--amber-t)}
.guide li span{color:var(--amber-l)}
h1,h2{letter-spacing:-.022em}
.hero h1{letter-spacing:-.028em}
/* Papierstruktur */
body{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .12 0 0 0 0 .18 0 0 0 0 .17 0 0 0 .05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.mast.scrolled{border-bottom-color:var(--rule)}
/* Aktualität */
.fresh{margin:30px 0 0;font-size:13px;color:var(--mute);display:flex;flex-wrap:wrap;align-items:center;gap:4px 6px}
.fresh a{color:var(--teal);text-decoration:none;border-bottom:1px solid var(--rule)}
.fresh a:hover{border-color:var(--teal)}
.fresh .dot{width:7px;height:7px;border-radius:50%;background:#3E8B66;margin-right:6px;box-shadow:0 0 0 3px rgba(62,139,102,.15)}
/* Kennzahlen */
.proof li b{font:500 clamp(40px,4.6vw,60px)/1 var(--serif);letter-spacing:-.03em;margin-bottom:10px}
/* Pull-Quote statt zweitem Foto */
.pull{margin:0;padding:28px 0 0;border-top:2px solid var(--teal);align-self:start}
.pull p{font:500 italic clamp(28px,3.2vw,40px)/1.18 var(--serif);color:var(--teal);margin:0 0 18px;letter-spacing:-.015em}
.pull p::before{content:"„";color:var(--amber)}
.pull p::after{content:"“";color:var(--amber)}
.pull cite{font:500 12px/1 var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--mute);font-style:normal}
/* Einblenden */
.reveal-on [data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal-on [data-reveal].in{opacity:1;transform:none}
.tool a{transition:background .3s,padding .3s}
@media(min-width:900px){.tool a:hover{background:linear-gradient(90deg,rgba(32,60,59,.035),rgba(32,60,59,0))}}

/* ---- Überarbeitung nach Design-Kritik 16.10. ---- */
/* Leitfaden-Button: Kontrast AA (dunkle Schrift auf hellem Amber statt 3,2:1) */
.guide .pill{background:var(--amber-l);color:var(--teal-ink)!important}
.guide .pill:hover{background:#F2CD96}
/* Mobil: Porträt kompakter, damit Kennzahlen und Tools schneller kommen */
@media(max-width:899px){
  .portrait{max-width:420px}
  .portrait .frame{aspect-ratio:5/4}
  .portrait img{object-position:50% 12%}
  .portrait figcaption{flex-direction:row;flex-wrap:wrap;gap:4px 10px}
}
/* Kennzahlen: Text lesbar halten, wenn er länger ist */
.proof li{max-width:22em}

/* EN: AI-That-Works-Heft statt Leitfaden-Cover (rein typografisch) */
.guide-book{justify-self:center;width:min(300px,100%);aspect-ratio:636/900;background:var(--paper);color:var(--teal);padding:26px 24px;display:flex;flex-direction:column;justify-content:space-between;transform:rotate(-2.5deg);box-shadow:0 40px 60px -30px rgba(0,0,0,.6)}
.gb-top,.gb-foot{font:600 10px/1.4 var(--sans);letter-spacing:.18em;text-transform:uppercase;display:flex;justify-content:space-between;gap:10px}
.gb-top i{font-style:normal;color:var(--mute)}
.gb-title{font:500 clamp(30px,3vw,38px)/1.05 var(--serif);letter-spacing:-.02em}
.gb-title em{color:var(--amber)}
.gb-foot{border-top:1px solid var(--rule);padding-top:12px;color:var(--mute)}
.guide .fine a{color:var(--paper)}
.guide li span{white-space:nowrap;flex:0 0 5.2em}

/* Häufige Fragen (sichtbar = FAQPage-JSON-LD) */
.faq{border-top:1px solid var(--rule)}
.faq .grid{display:grid;gap:36px}
.faq h2{font-size:clamp(34px,4.4vw,58px);line-height:1.02;margin:22px 0 0}
.faq-list{border-top:1px solid var(--teal)}
.faq details{border-bottom:1px solid var(--rule)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;padding:22px 0;font:500 clamp(19px,1.8vw,22px)/1.3 var(--serif);color:var(--teal)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:400 24px/1 var(--sans);color:var(--amber-t);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:0 0 24px;color:var(--teal-2);max-width:40em}
@media(min-width:900px){.faq .grid{grid-template-columns:4fr 7fr;gap:clamp(40px,6vw,96px)}}