:root{
  --white:#ffffff;--paper:#f6f7f7;--ink:#152E42;--ink-deep:#0f2231;
  --green:#40EC9E;--green-hover:#30D68C;
  --txt:#1c2b36;--txt-muted-light:rgba(21,46,66,.62);--txt-muted-dark:rgba(255,255,255,.66);
  --line-light:rgba(21,46,66,.12);--line-dark:rgba(255,255,255,.16);
  --ease:cubic-bezier(.4,0,.2,1);--ease-out:cubic-bezier(.16,1,.3,1);
  --maxw:1200px;--readw:720px;--pad:clamp(22px,5vw,56px);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:90px}
body{font-family:'Hanken Grotesk',system-ui,-apple-system,sans-serif;background:var(--white);color:var(--txt);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;line-height:1.65;font-weight:400}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:var(--ink);color:#fff}
h1,h2,h3{font-weight:600;letter-spacing:-.02em;line-height:1.12;color:var(--ink)}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.label{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#0a7f4f}

/* buttons */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.55em;font-family:inherit;font-weight:600;font-size:1rem;letter-spacing:-.01em;
  padding:1.02em 1.85em;border-radius:100px;cursor:pointer;border:1.5px solid transparent;
  transition:transform .4s var(--ease),background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),box-shadow .4s var(--ease);white-space:nowrap}
.btn svg{width:16px;height:16px;transition:transform .4s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{background:var(--green);color:var(--ink)}
.btn-primary:hover{background:var(--green-hover);transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(64,236,158,.55)}
.btn-outline-light{background:transparent;color:#fff;border-color:var(--line-dark)}
.btn-outline-light:hover{border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.06)}

/* nav (same system as the rest of the site) */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:18px 0;transition:background .45s var(--ease),border-color .45s var(--ease),padding .45s var(--ease),box-shadow .45s var(--ease)}
.nav.scrolled{background:rgba(255,255,255,.88);backdrop-filter:blur(16px) saturate(150%);-webkit-backdrop-filter:blur(16px) saturate(150%);border-bottom:1px solid var(--line-light);padding:11px 0;box-shadow:0 1px 30px -20px rgba(21,46,66,.5)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
.nav-logo{display:block;height:48px}.nav-logo img{height:48px;width:auto}
.nav-menu{display:flex;align-items:center;gap:34px}
.nav-links{display:flex;gap:30px;list-style:none}
.nav-links a{position:relative;color:var(--ink);font-size:.82rem;font-weight:600;text-transform:uppercase;letter-spacing:.09em;transition:color .3s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-4px;height:1.5px;width:0;background:currentColor;transition:width .35s var(--ease)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-right{display:flex;align-items:center;gap:20px}
.lang{display:flex;gap:3px;font-size:.8rem;font-weight:600}
.lang a{color:var(--txt-muted-light);padding:3px 7px;border-radius:7px;border:1px solid transparent;transition:.3s}
.lang a.active{color:var(--ink);background:rgba(21,46,66,.06);border-color:rgba(21,46,66,.18)}
.nav .btn{padding:.5em 1.1em;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;z-index:120}
.nav-burger span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.4s var(--ease)}

/* article shell */
.article{padding:clamp(104px,13vw,150px) 0 clamp(56px,8vw,96px)}
.breadcrumb{font-size:.82rem;color:var(--txt-muted-light);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:22px}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{opacity:.5}
.art-head{max-width:var(--readw);margin:0 auto}
.art-cat{margin-bottom:14px}
.art-title{font-size:clamp(2.1rem,4.4vw,3.2rem);letter-spacing:-.028em;line-height:1.06}
.art-lead{font-size:clamp(1.12rem,1.5vw,1.32rem);color:var(--txt-muted-light);margin-top:18px;line-height:1.5}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-top:26px;font-size:.9rem;color:var(--txt-muted-light)}
.art-meta .byline{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--ink)}
.art-meta .byline img{width:34px;height:34px;border-radius:50%;object-fit:cover;object-position:top center;border:1px solid var(--line-light)}
.art-meta .dot{width:3px;height:3px;border-radius:50%;background:currentColor;opacity:.5}
.art-figure{max-width:var(--maxw);margin:clamp(32px,4vw,52px) auto 0}
.art-figure img{width:100%;aspect-ratio:16/8;object-fit:cover;border-radius:20px;background:var(--paper)}
.art-figure figcaption{font-size:.82rem;color:var(--txt-muted-light);margin-top:10px;text-align:center}

/* body layout: prose column + optional TOC rail */
.art-body{max-width:var(--readw);margin:clamp(36px,5vw,60px) auto 0}

/* TL;DR key takeaways (AEO/GEO: direct answer up top) */
.tldr{background:var(--paper);border:1px solid var(--line-light);border-radius:18px;padding:clamp(22px,3vw,32px);margin:0 auto clamp(32px,4vw,48px)}
.tldr h2{font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:#0a7f4f;margin-bottom:14px}
.tldr ul{list-style:none;display:grid;gap:12px}
.tldr li{position:relative;padding-left:30px;font-size:1.02rem;color:var(--ink)}
.tldr li::before{content:"";position:absolute;left:0;top:.5em;width:16px;height:2px;background:var(--green);border-radius:2px}

/* table of contents */
.toc{border:1px solid var(--line-light);border-radius:16px;padding:20px 24px;margin-bottom:clamp(30px,4vw,44px)}
.toc h2{font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--txt-muted-light);margin-bottom:12px}
.toc ol{list-style:none;counter-reset:toc;display:grid;gap:9px}
.toc li{counter-increment:toc}
.toc a{font-size:.98rem;color:var(--txt-muted-light);transition:color .25s;display:inline-flex;gap:10px}
.toc a::before{content:counter(toc,decimal-leading-zero);font-weight:700;color:var(--green-hover);font-size:.82rem}
.toc a:hover,.toc a.active{color:var(--ink)}

/* prose */
.prose{font-size:1.075rem;line-height:1.72;color:var(--txt)}
.prose>h2{font-size:clamp(1.5rem,2.4vw,1.95rem);margin:2.2em 0 .6em;letter-spacing:-.02em}
.prose>h3{font-size:1.25rem;margin:1.7em 0 .4em}
.prose p{margin:0 0 1.2em}
.prose>p:first-of-type{font-size:1.14rem;color:var(--ink)}
.prose a{color:var(--ink);border-bottom:1.5px solid var(--green);padding-bottom:1px;transition:border-color .25s,background .25s}
.prose a:hover{background:rgba(64,236,158,.14)}
.prose ul,.prose ol{margin:0 0 1.3em;padding-left:1.3em;display:grid;gap:.5em}
.prose li{padding-left:.2em}
.prose strong{font-weight:600;color:var(--ink)}
.prose blockquote{margin:1.6em 0;padding:.2em 0 .2em 24px;border-left:3px solid var(--green);font-size:1.16rem;line-height:1.5;color:var(--ink);font-weight:500}
.prose figure{margin:1.8em 0}
.prose figure img{border-radius:14px;border:1px solid var(--line-light)}
.prose figcaption{font-size:.82rem;color:var(--txt-muted-light);margin-top:8px}

/* comparison table (SERP-snippet friendly) */
.table-wrap{overflow-x:auto;margin:1.6em 0;border:1px solid var(--line-light);border-radius:16px}
table{width:100%;border-collapse:collapse;font-size:.98rem;min-width:520px}
thead th{background:var(--ink);color:#fff;text-align:left;padding:14px 18px;font-weight:600;font-size:.9rem;letter-spacing:-.01em}
tbody td{padding:13px 18px;border-top:1px solid var(--line-light);vertical-align:top}
tbody tr:nth-child(even){background:var(--paper)}
tbody td:first-child{font-weight:600;color:var(--ink)}

/* callout */
.callout{background:var(--ink);color:#fff;border-radius:18px;padding:clamp(22px,3vw,30px);margin:1.8em 0}
.callout .label{color:var(--green)}
.callout p{color:rgba(255,255,255,.82);margin:.6em 0 0}
.callout strong{color:#fff}

/* FAQ */
.faq-sec{max-width:var(--readw);margin:clamp(48px,6vw,72px) auto 0}
.faq-sec>h2{font-size:clamp(1.6rem,2.6vw,2.1rem);margin-bottom:8px}
.faq-item{border-bottom:1px solid var(--line-light)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:18px;align-items:center;padding:20px 0;font-weight:600;font-size:1.08rem;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{flex:none;width:22px;height:22px;position:relative;transition:transform .35s var(--ease)}
.faq-item summary .plus::before,.faq-item summary .plus::after{content:"";position:absolute;inset:0;margin:auto;background:var(--ink)}
.faq-item summary .plus::before{width:14px;height:2px}.faq-item summary .plus::after{width:2px;height:14px;transition:transform .35s var(--ease)}
.faq-item[open] summary .plus::after{transform:scaleY(0)}
.faq-a{padding:0 0 22px;color:var(--txt-muted-light);font-size:1.02rem;line-height:1.6;max-width:60ch}

/* author box (E-E-A-T) */
.author-box{max-width:var(--readw);margin:clamp(48px,6vw,68px) auto 0;display:flex;gap:22px;align-items:flex-start;
  background:var(--paper);border:1px solid var(--line-light);border-radius:20px;padding:clamp(24px,3vw,32px)}
.author-box img{flex:none;width:76px;height:76px;border-radius:50%;object-fit:cover;object-position:top center;border:1px solid var(--line-light)}
.author-box .k{font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#0a7f4f;margin-bottom:5px}
.author-box h3{font-size:1.2rem;margin-bottom:8px}
.author-box p{font-size:.98rem;color:var(--txt-muted-light);line-height:1.6;margin-bottom:12px}
.author-box a{font-weight:600;color:var(--ink);border-bottom:1.5px solid var(--green);padding-bottom:1px}

/* inline CTA */
.cta-band{position:relative;background:var(--ink);color:#fff;border-radius:24px;overflow:hidden;text-align:center;
  max-width:var(--readw);margin:clamp(48px,6vw,68px) auto 0;padding:clamp(38px,5vw,56px) clamp(24px,4vw,48px)}
.cta-band .glow{position:absolute;inset:0;pointer-events:none;background:radial-gradient(52% 70% at 50% 0%,rgba(64,236,158,.18),transparent 60%)}
.cta-band h2{color:#fff;font-size:clamp(1.6rem,3vw,2.3rem);position:relative}
.cta-band p{color:rgba(255,255,255,.76);margin:14px auto 26px;max-width:460px;position:relative}
.cta-band .btn{position:relative}

/* related */
.related{max-width:var(--maxw);margin:clamp(56px,7vw,88px) auto 0;padding-top:clamp(40px,5vw,60px);border-top:1px solid var(--line-light)}
.related>h2{font-size:clamp(1.4rem,2.2vw,1.8rem);margin-bottom:28px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,2.4vw,28px)}
.rel-card{display:flex;flex-direction:column;border:1px solid var(--line-light);border-radius:18px;overflow:hidden;transition:transform .5s var(--ease-out),box-shadow .5s var(--ease)}
.rel-card:hover{transform:translateY(-5px);box-shadow:0 40px 80px -46px rgba(21,46,66,.4)}
.rel-card .media{aspect-ratio:16/10;background:linear-gradient(135deg,#eef0f1,#e2e6e9)}
.rel-card .body{padding:20px;display:flex;flex-direction:column;gap:9px;flex:1}
.rel-card .cat{font-size:.68rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:#0a7f4f}
.rel-card h3{font-size:1.08rem;line-height:1.25}
.rel-card h3 a:hover{color:var(--green-hover)}
.rel-card .meta{font-size:.8rem;color:var(--txt-muted-light);margin-top:auto}

/* footer */
.footer{background:#fff;color:var(--ink);padding:clamp(56px,7vw,88px) 0 30px;border-top:1px solid var(--line-light)}
.footer-top{display:grid;grid-template-columns:1.8fr 1fr 1fr;gap:44px;padding-bottom:clamp(40px,5vw,60px)}
.footer-brand img{height:38px;margin-bottom:20px}
.footer-brand p{color:var(--txt-muted-light);font-size:.96rem;max-width:300px;line-height:1.6}
.footer-col h4{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--txt-muted-light);margin-bottom:16px;font-weight:700}
.footer-col ul{list-style:none;display:grid;gap:11px}
.footer-col a{color:var(--ink);font-size:.97rem;font-weight:500;transition:opacity .3s}
.footer-col a:hover{opacity:.62}
.footer-bottom{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid var(--line-light);color:var(--txt-muted-light);font-size:.86rem}
.footer-legal{display:flex;gap:22px;flex-wrap:wrap}
.footer-legal a:hover{color:var(--ink)}

/* reveal */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .9s var(--ease-out),transform .9s var(--ease-out);transition-delay:var(--d,0ms)}
[data-reveal].in{opacity:1;transform:none}

@media(max-width:820px){
  .rel-grid{grid-template-columns:1fr;max-width:420px;margin-left:auto;margin-right:auto}
  .footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
  .author-box{flex-direction:column}
}
@media(max-width:720px){
  .nav-menu{position:fixed;inset:0 0 0 auto;width:min(86vw,360px);flex-direction:column;justify-content:center;align-items:flex-start;gap:30px;
    background:var(--ink);padding:88px 42px;transform:translateX(100%);transition:transform .5s var(--ease)}
  .nav-menu.open{transform:translateX(0)}
  .nav-links{flex-direction:column;gap:22px}.nav-links a{font-size:1.3rem;color:#fff}
  .nav-right{flex-direction:column;align-items:flex-start;gap:22px}
  .nav.menu-open .nav-burger span{background:#fff}
  .nav.menu-open .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav.menu-open .nav-burger span:nth-child(2){opacity:0}
  .nav.menu-open .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-burger{display:flex}
  .footer-top{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none}
}

/* ===== ARTIKEL-TEMPLATE.md structure additions ===== */
/* TL;DR as one self-contained paragraph (GEO/AEO cite unit) */
.tldr-k,.fazit-k{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#0a7f4f;margin-bottom:12px}
.tldr p:not(.tldr-k){font-size:1.08rem;line-height:1.6;color:var(--ink)}
/* intro (2-3 paragraphs after TL;DR) */
.art-intro{max-width:var(--readw);margin:0 auto clamp(30px,4vw,44px);font-size:1.1rem;line-height:1.7;color:var(--txt)}
.art-intro p{margin:0 0 1em}.art-intro p:last-child{margin-bottom:0}
/* TOC label (non-heading, keeps H2 outline clean for content questions) */
.toc-k{display:block;font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--txt-muted-light);margin-bottom:12px}
/* inline citation source (Abschnitt 4b) */
.prose blockquote cite{display:block;margin-top:12px;font-size:.82rem;font-weight:600;font-style:normal;color:var(--txt-muted-light);letter-spacing:0}
.prose blockquote cite a{border-bottom:1px solid var(--line-light)}
/* FAQ question as H3 inside the accordion */
.faq-item summary h3{font-size:1.08rem;font-weight:600;margin:0;line-height:1.3;color:var(--ink)}
.faq-list{margin-top:10px}
/* Fazit (short conclusion before the single CTA) */
.fazit{max-width:var(--readw);margin:clamp(40px,5vw,60px) auto 0;padding:clamp(22px,3vw,30px) clamp(24px,3vw,32px);border:1px solid var(--line-light);border-left:3px solid var(--green);border-radius:14px;background:var(--paper)}
.fazit p:not(.fazit-k){font-size:1.06rem;line-height:1.62;color:var(--ink);margin:0}
/* author role line */
.author-box .author-role{font-size:.9rem;font-weight:600;color:var(--ink);margin-bottom:12px}