:root{
  --paper:#F1F1EC; --card:#FBFBF8; --ink:#15130F; --ink-soft:#56534C;
  --line:#DDDDD4; --cyan:#0098D4; --cyan-deep:#006C9A; --magenta:#E5007E;
  --green:#2E8B57; --amber:#C77700; --red:#CC3A2C; --indigo:#4b3b8f;
}
*{box-sizing:border-box; margin:0; padding:0}
body{
  background:var(--paper); color:var(--ink);
  font-family:"Hanken Grotesk",system-ui,sans-serif; line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
.site-header{background:var(--card); border-bottom:1px solid var(--line)}
.site-header-inner{
  max-width:980px; margin:0 auto; padding:0 24px;
  display:flex; align-items:center; justify-content:space-between; height:56px;
}
.logo{display:flex; align-items:center; gap:10px; text-decoration:none; color:inherit}
.logo-mark{display:block}
.site-nav{display:flex; gap:20px; align-items:center}
.site-nav a{font-size:13px; color:var(--ink-soft); text-decoration:none}
.site-nav a:hover{color:var(--ink)}
.hero{max-width:980px; margin:0 auto; padding:40px 24px 0}
h1{font-family:"Archivo",sans-serif; font-weight:800; font-size:clamp(26px,4vw,40px); line-height:1.07; letter-spacing:-.02em; margin-bottom:10px}
.lede{color:var(--ink-soft); max-width:58ch; font-size:15px; line-height:1.6; margin-bottom:14px}
.badges{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:24px}
.badge{
  font-family:"JetBrains Mono",monospace; font-size:10px; font-weight:700;
  letter-spacing:.08em; text-transform:uppercase; color:var(--indigo);
  border:1px solid var(--line); background:var(--card); border-radius:99px; padding:4px 11px;
}
.wrap{max-width:980px; margin:0 auto; padding:0 24px 80px}
.card{background:var(--card); border:1px solid var(--line); border-radius:14px; padding:22px; margin-top:20px}
.card h2{font-family:"Archivo",sans-serif; font-weight:700; font-size:16px; margin:0 0 14px; letter-spacing:-.01em}
.step{font-family:"JetBrains Mono",monospace; font-size:11px; font-weight:700; color:var(--indigo); letter-spacing:.1em; margin-bottom:4px}
.dropzone{
  border:2px dashed var(--line); border-radius:12px; padding:36px 20px;
  text-align:center; cursor:pointer; transition:border-color .15s,background .15s; background:var(--paper);
}
.dropzone:hover,.dropzone.drag{border-color:var(--indigo); background:#fff}
.dropzone svg{display:block; margin:0 auto 12px; color:var(--indigo)}
.dropzone .main{font-family:"Archivo",sans-serif; font-weight:600; font-size:15px}
.dropzone .sub{font-size:13px; color:var(--ink-soft); margin-top:4px}
input[type=file]{display:none}
.filenote{font-size:13px; color:var(--ink-soft); margin-top:12px; min-height:1.2em}
.filenote b{color:var(--ink); font-weight:600}
.imgshare{font-size:12px; color:var(--ink-soft); margin-top:4px; min-height:1.2em}
.preset-tabs{display:flex; border:1px solid var(--line); border-radius:10px; overflow:hidden; width:fit-content; margin-bottom:6px}
.preset-tabs input[type=radio]{display:none}
.preset-tabs label{
  padding:9px 18px; font-size:13px; font-weight:600; cursor:pointer;
  background:var(--paper); color:var(--ink-soft); transition:background .12s,color .12s;
  font-family:"Archivo",sans-serif; border-right:1px solid var(--line);
}
.preset-tabs label:last-of-type{border-right:none}
.preset-tabs input[type=radio]:checked+label{background:var(--indigo); color:#fff}
.preset-desc{font-size:12px; color:var(--ink-soft); margin-bottom:18px; min-height:1.2em}
.fld-lab{font-family:"JetBrains Mono",monospace; font-size:10px; letter-spacing:.07em; text-transform:uppercase; color:var(--ink-soft); display:block; margin-bottom:6px}
select{
  font-family:"Hanken Grotesk",sans-serif; font-size:13px; padding:9px 12px;
  border:1px solid var(--line); border-radius:8px; background:#fff;
  color:var(--ink); cursor:pointer; min-width:230px;
}
select:focus{outline:2px solid var(--cyan); outline-offset:1px}
.target-custom-wrap{display:flex; align-items:center; gap:8px; margin-top:8px}
.target-custom-wrap.hidden{display:none}
input[type=number]{
  font-family:"JetBrains Mono",monospace; font-size:13px; padding:9px 12px;
  border:1px solid var(--line); border-radius:8px; background:#fff;
  color:var(--ink); width:110px;
}
input[type=number]:focus{outline:2px solid var(--cyan); outline-offset:1px}
.target-custom-unit{font-family:"JetBrains Mono",monospace; font-size:12px; color:var(--ink-soft)}
.hint{font-size:12px; color:var(--ink-soft); margin-top:8px; line-height:1.6}
.advanced{margin-top:16px; padding-top:14px; border-top:1px solid var(--line)}
.advanced summary{
  cursor:pointer; list-style:none; font-family:"Archivo",sans-serif; font-weight:600;
  font-size:13px; color:var(--indigo); user-select:none;
}
.advanced summary::-webkit-details-marker{display:none}
.advanced summary::before{content:"▸"; display:inline-block; margin-right:6px; transition:transform .15s}
.advanced[open] summary::before{transform:rotate(90deg)}
.advanced .preset-tabs{margin-top:14px}
.notice{
  margin-top:16px; padding:11px 14px; border-left:3px solid var(--indigo);
  background:rgba(0,152,212,.06); border-radius:0 8px 8px 0;
  font-size:12px; color:var(--ink-soft); line-height:1.6;
}
.faq-item{border-top:1px solid var(--line); padding:14px 0}
.faq-item:first-child{border-top:none; padding-top:4px}
.faq-item summary{
  cursor:pointer; list-style:none; font-family:"Archivo",sans-serif; font-weight:600;
  font-size:15px; color:var(--ink); user-select:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"▸"; display:inline-block; margin-right:8px; transition:transform .15s; color:var(--indigo)}
.faq-item[open] summary::before{transform:rotate(90deg)}
.faq-item p{margin:10px 0 0 20px; font-size:14px; color:var(--ink-soft); line-height:1.6}
button{
  font-family:"Archivo",sans-serif; font-weight:600; font-size:14px;
  border:none; border-radius:10px; padding:10px 20px; cursor:pointer;
  background:var(--indigo); color:#fff; transition:filter .15s;
}
button:hover{filter:brightness(1.08)}
button:disabled{opacity:.4; cursor:not-allowed; filter:none}
.hidden{display:none}
body.lb-lock{overflow:hidden}
.spin{font-family:"JetBrains Mono",monospace; font-size:13px; color:var(--indigo); margin-top:12px}
.progress-wrap{margin-top:10px; background:var(--line); border-radius:99px; height:6px; overflow:hidden}
.progress-bar{height:100%; background:var(--indigo); transition:width .2s; width:0}
.result-stats{display:flex; gap:0; align-items:stretch; flex-wrap:wrap; border:1px solid var(--line); border-radius:12px; overflow:hidden; background:var(--paper); width:fit-content}
.stat{padding:14px 22px; border-right:1px solid var(--line); min-width:130px}
.stat:last-child{border-right:none}
.stat .lab{font-family:"JetBrains Mono",monospace; font-size:10px; letter-spacing:.07em; text-transform:uppercase; color:var(--ink-soft)}
.stat .val{font-family:"Archivo",sans-serif; font-weight:800; font-size:22px; letter-spacing:-.02em; margin-top:2px}
.stat .val.mag{color:var(--magenta)}
.stat .val.green{color:var(--green)}
.result-note{font-size:13px; margin-top:14px; color:var(--ink-soft)}
.result-note.warn{color:var(--amber)}
.result-note.ok{color:var(--green)}
.preview-pair{display:flex; gap:18px; margin-top:18px; flex-wrap:wrap}
.preview-box{flex:1; min-width:200px; max-width:300px}
.preview-box .lab{font-family:"JetBrains Mono",monospace; font-size:10px; letter-spacing:.07em; text-transform:uppercase; color:var(--ink-soft); margin-bottom:6px}
.preview-box .frame{
  border:1.5px solid var(--line); border-radius:6px; overflow:hidden; background:#fff;
  position:relative; cursor:pointer;
}
.preview-box .frame:focus-visible{outline:2px solid var(--cyan); outline-offset:2px}
.preview-box img{width:100%; display:block}
.zoom-badge{
  position:absolute; bottom:6px; right:6px; width:26px; height:26px; border-radius:50%;
  background:rgba(21,19,15,.65); color:#fff; display:flex; align-items:center; justify-content:center;
  pointer-events:none;
}
.lightbox{
  position:fixed; inset:0; background:rgba(21,19,15,.92); z-index:1000;
  display:flex; align-items:center; justify-content:center; padding:24px;
}
.lightbox.hidden{display:none}
.lightbox img{max-width:100%; max-height:100%; object-fit:contain; border-radius:6px; display:block}
.lightbox-close{
  position:absolute; top:16px; right:16px; width:44px; height:44px; border-radius:50%;
  background:var(--card); color:var(--ink); border:none; font-size:26px; line-height:1;
  cursor:pointer; display:flex; align-items:center; justify-content:center; padding:0;
}
.export-wrap{margin-top:20px; display:flex; gap:12px; align-items:center; flex-wrap:wrap}
.export-btn{background:var(--magenta); font-size:15px; padding:12px 28px; display:flex; align-items:center; gap:8px}
.export-btn:hover{filter:brightness(1.1)}
.export-btn svg{flex-shrink:0}
.share-btn{background:var(--card); color:var(--ink); border:1.5px solid var(--line); font-size:15px; padding:12px 22px; display:flex; align-items:center; gap:8px}
.share-btn:hover{border-color:var(--indigo); color:var(--indigo); filter:none}
.export-note{font-size:12px; color:var(--ink-soft)}
.site-footer{border-top:1px solid var(--line); padding:20px 0; background:var(--card); margin-top:60px}
.site-footer-inner{max-width:980px; margin:0 auto; padding:0 24px; display:flex; gap:20px; align-items:center; justify-content:space-between; flex-wrap:wrap}
.footer-copy{font-size:12px; color:var(--ink-soft)}
.footer-nav{display:flex; gap:16px}
.footer-nav a{font-size:12px; color:var(--ink-soft); text-decoration:none}
.footer-nav a:hover{color:var(--ink)}
.footer-tools{max-width:980px; margin:10px auto 0; padding:0 24px; font-size:12px; color:var(--ink-soft)}
.footer-tools a{color:var(--ink-soft)}
.crosspromo-label{margin:0 0 8px; font-size:12px; color:var(--ink-soft)}
.crosspromo-cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:12px; margin-bottom:12px}
.crosspromo-card{display:flex; flex-direction:column; align-items:flex-start; gap:6px; background:var(--card); border:1px solid var(--line); border-radius:12px; padding:14px 16px; text-decoration:none; color:inherit}
.crosspromo-card svg{height:18px; width:auto; display:block}
.crosspromo-card p{margin:0; font-size:12px; color:var(--ink-soft)}
.crosspromo-links{display:flex; flex-wrap:wrap; gap:16px; font-size:12px; color:var(--ink-soft)}
.crosspromo-links a{color:var(--ink-soft)}

/* ── Anwendungsfall-Seiten (z. B. /fuer-elster/) und Block "Häufige Anwendungsfälle" ── */
.prose{font-size:15px; line-height:1.65}
.prose h2{font-size:18px; margin-bottom:12px}
.prose p{margin:0 0 12px}
.prose p:last-child,.prose ol:last-child{margin-bottom:0}
.prose ol{margin:0 0 12px 22px; display:grid; gap:8px}
.prose strong{font-weight:600}
.prose a{color:var(--indigo)}
.usecase-list{list-style:none; display:grid; gap:12px}
.usecase-list li{display:flex; flex-direction:column; gap:2px}
.usecase-list a{font-family:"Archivo",sans-serif; font-weight:600; font-size:15px; color:var(--indigo); text-decoration:none}
.usecase-list a:hover{text-decoration:underline}
.usecase-list span{font-size:13px; color:var(--ink-soft)}
.table-wrap{overflow-x:auto; margin:0 0 12px}
.prose table{border-collapse:collapse; width:100%; font-size:14px}
.prose th,.prose td{text-align:left; padding:8px 12px; border-bottom:1px solid var(--line); vertical-align:top}
.prose th{font-family:"JetBrains Mono",monospace; font-size:10px; letter-spacing:.07em; text-transform:uppercase; color:var(--ink-soft); font-weight:600}