:root{
  --ink:#0F1B2D;--muted:#4B5870;--line:#D5DBE6;--line-strong:#AEB8C9;
  --bg:#FFFFFF;--surface:#EEF1F6;--accent:#13294B;--accent-dark:#0B1A33;--cta:#F2B53A;--cta-dark:#E0A426;--serif:'Source Serif 4',Georgia,serif;--danger:#9B2C2C;
  --radius:8px;--radius-lg:12px;
  --font:'Public Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.55}
a{color:var(--accent)}a:hover{color:var(--accent-dark)}
img,svg{max-width:100%}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:16px;background:#fff;padding:8px 12px;z-index:10}

/* header / footer */
.site-header{border-bottom:1px solid var(--line);background:#fff}
.site-header .wrap{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;padding-top:16px;padding-bottom:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;font-size:19px}
.brand:hover{color:var(--ink)}
.nav{display:flex;flex-wrap:wrap;gap:8px 24px;font-size:15px}
.nav a{text-decoration:none;color:var(--muted)}.nav a:hover,.nav a[aria-current=page]{color:var(--ink)}
.site-footer{border-top:1px solid var(--line);margin-top:72px}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;padding-top:28px;padding-bottom:28px;font-size:14px;color:var(--muted)}
.site-footer nav{display:flex;flex-wrap:wrap;gap:8px 20px}

/* type */
h1{font-size:clamp(34px,5vw,52px);line-height:1.08;letter-spacing:-0.02em;margin:0 0 20px}
h2{font-size:clamp(26px,3vw,32px);line-height:1.2;letter-spacing:-0.01em;margin:0 0 12px}
h3{font-size:18px;margin:0 0 6px}
.eyebrow{margin:0 0 16px;font-size:14px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}
.lead{font-size:19px;color:var(--muted);max-width:560px;margin:0 0 32px}
.muted{color:var(--muted)}
.small{font-size:14px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border-radius:var(--radius);font:inherit;font-weight:600;font-size:16px;text-decoration:none;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-dark);color:#fff}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line-strong)}.btn-outline:hover{border-color:var(--ink);color:var(--ink)}
.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:#000;color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border:1px dashed var(--line-strong);min-height:44px;font-weight:500;font-size:15px;padding:0 16px}
.btn-block{width:100%}
.btn:focus-visible,input:focus-visible,select:focus-visible,button:focus-visible{outline:3px solid #8DB8D6;outline-offset:2px}

/* sections */
.hero{background:var(--surface);border-bottom:1px solid var(--line)}
.hero .wrap{display:flex;flex-wrap:wrap;gap:48px;align-items:center;padding-top:64px;padding-bottom:56px}
.hero-copy{flex:1 1 460px;min-width:0}
.hero-doc{flex:1 1 420px;min-width:0}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.trust{margin:24px 0 0;display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.section{padding-top:72px;padding-bottom:0}
.band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:72px}
.band .wrap{padding-top:64px;padding-bottom:64px}

/* sample document */
.doc{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;box-shadow:0 12px 32px rgba(16,36,43,.08)}
.doc-head{display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;align-items:baseline;border-bottom:2px solid var(--ink);padding-bottom:12px;margin-bottom:16px}
.doc-title{font-weight:700;font-size:20px;letter-spacing:.08em}
.doc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;font-size:13px;margin-bottom:18px}
.doc-label{font-weight:600;color:var(--muted);font-size:11px;letter-spacing:.06em;text-transform:uppercase}
.doc table{width:100%;border-collapse:collapse;font-size:13px}
.doc th{text-align:left;color:var(--muted);font-weight:600;padding:8px 6px;border-bottom:1px solid var(--line)}
.doc td{padding:8px 6px;border-bottom:1px solid #EEF2F2}
.doc .num{text-align:right}
.doc-total{display:flex;justify-content:space-between;margin-top:14px;padding-top:12px;border-top:2px solid var(--ink);font-weight:700}
.table-scroll{overflow-x:auto}

/* generator */
.gen{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start}
.gen-form{flex:999 1 560px;min-width:0;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;display:flex;flex-direction:column;gap:28px}
.gen-side{flex:1 1 280px;min-width:0;display:flex;flex-direction:column;gap:16px;position:sticky;top:16px}
fieldset{border:0;padding:0;margin:0;min-width:0}
legend{font-weight:700;font-size:17px;margin-bottom:12px;padding:0}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:500;min-width:0}
.field .hint{font-weight:400;color:var(--muted);font-size:13px;margin-left:4px}
input[type=text],input[type=date],input[type=email],input[type=number],input[type=tel],select,textarea{min-height:44px;padding:0 12px;border:1px solid var(--line-strong);border-radius:var(--radius);font:inherit;font-size:16px;font-weight:400;color:var(--ink);background:#fff;width:100%;min-width:0}
textarea{padding:10px 12px;min-height:88px;resize:vertical}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted)}
.check input{width:18px;height:18px;margin-top:2px;flex:none}
.rows{display:flex;flex-direction:column;gap:12px}
.row{display:grid;grid-template-columns:1.1fr 2fr 1fr .9fr auto;gap:10px;align-items:end;padding:14px;border:1px solid var(--line);border-radius:var(--radius);background:#FBFCFC}
.row-gfe{grid-template-columns:2fr .8fr .9fr .9fr auto}
.icon-btn{min-height:44px;min-width:44px;border:1px solid var(--line-strong);border-radius:var(--radius);background:#fff;cursor:pointer;color:var(--muted);font-size:20px;line-height:1}
.icon-btn:hover{color:var(--danger);border-color:var(--danger)}
.card{border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px;font-size:14px;color:var(--muted)}
.card strong{color:var(--ink)}
.card ul{margin:8px 0 0;padding-left:18px}
.total-line{display:flex;justify-content:space-between;font-weight:700;font-size:18px;color:var(--ink)}
.error{color:var(--danger);font-size:14px;margin:0}

/* pro */
.pro{display:flex;flex-wrap:wrap;gap:32px;align-items:center}
.pro-copy{flex:1 1 420px;min-width:0}
.price-card{flex:1 1 340px;min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px}
.price{font-size:40px;font-weight:700}.price span{font-size:17px;font-weight:500;color:var(--muted)}
.price-card ul{margin:16px 0 24px;padding-left:18px;line-height:1.9}

/* faq / article */
.faq{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 48px}
.faq p{margin:0;color:var(--muted)}
.article{max-width:760px}
.article h2{margin-top:40px}
.article p,.article li{color:#22363C;font-size:17px}
.article ol,.article ul{padding-left:22px}
.article li{margin-bottom:8px}
.callout{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;margin:32px 0}
.callout p{margin:0 0 16px}
.breadcrumbs{font-size:14px;color:var(--muted);padding-top:24px}
.breadcrumbs a{color:var(--muted)}

/* modal */
dialog{border:0;border-radius:var(--radius-lg);padding:28px;max-width:440px;width:calc(100% - 32px);box-shadow:0 24px 64px rgba(16,36,43,.25)}
dialog::backdrop{background:rgba(16,36,43,.45)}
dialog h2{font-size:24px}
dialog form{display:flex;flex-direction:column;gap:14px}

@media (max-width:720px){
  .grid2,.grid3,.doc-grid,.faq{grid-template-columns:minmax(0,1fr)}
  .row,.row-gfe{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .row .field-wide{grid-column:1/-1}
  .gen-side{position:static}
  .hero .wrap{padding-top:40px}
}
@media print{.site-header,.site-footer{display:none}}

/* pro app */
.app-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:12px;margin-bottom:20px}
.banner{background:#FFF7E6;border:1px solid #F0D9A8;border-radius:var(--radius);padding:12px 16px;font-size:14px;margin-bottom:16px}
.tabs{display:flex;gap:4px;overflow-x:auto;border-bottom:1px solid var(--line);margin-bottom:24px;scrollbar-width:thin}
.tabs button{flex:none;border:0;background:none;font:inherit;font-size:15px;font-weight:600;color:var(--muted);padding:12px 14px;border-bottom:3px solid transparent;cursor:pointer;min-height:44px}
.tabs button[aria-selected=true]{color:var(--ink);border-bottom-color:var(--accent)}
.panel{display:flex;flex-direction:column;gap:20px}
.card-form{border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;min-width:0}
.card-form h2{font-size:20px;margin:0 0 16px}
.card-form p{margin:0 0 14px}
table.data{width:100%;border-collapse:collapse;font-size:15px}
table.data th{text-align:left;color:var(--muted);font-weight:600;font-size:13px;padding:10px 8px;border-bottom:1px solid var(--line)}
table.data td{padding:10px 8px;border-bottom:1px solid #EEF2F2;vertical-align:middle}
table.data .num{text-align:right;white-space:nowrap}
table.data .actions{text-align:right;white-space:nowrap}
.link-btn{border:0;background:none;font:inherit;font-size:14px;font-weight:600;color:var(--accent);cursor:pointer;padding:8px 6px;min-height:36px}
.link-btn:hover{text-decoration:underline}
.link-btn.danger{color:var(--danger)}
.tag{display:inline-block;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:#8A5A00;background:#FFF1D6;border-radius:4px;padding:2px 6px;margin-left:4px}
.filter-row{display:flex;gap:16px;align-items:end}
.img-preview{min-height:64px;display:flex;align-items:center;margin:8px 0 14px}
.img-preview img{max-height:80px;max-width:100%;border:1px solid var(--line);border-radius:6px;background:#fff;padding:6px}
#sig-pad{width:100%;max-width:600px;aspect-ratio:600/180;border:1px dashed var(--line-strong);border-radius:var(--radius);background:#fff;touch-action:none;cursor:crosshair;display:block;margin-bottom:12px}
input[type=month]{min-height:44px;padding:0 12px;border:1px solid var(--line-strong);border-radius:var(--radius);font:inherit;font-size:16px;color:var(--ink);background:#fff;width:100%}
@media (max-width:760px){.panel .grid3,.panel .grid2{grid-template-columns:minmax(0,1fr)}}
[hidden]{display:none!important}

/* guides */
.article table{width:100%;border-collapse:collapse;font-size:16px;margin:16px 0 8px}
.article th{text-align:left;color:var(--muted);font-weight:600;font-size:14px;padding:10px 8px;border-bottom:1px solid var(--line)}
.article td{padding:10px 8px;border-bottom:1px solid #EEF2F2;vertical-align:top;color:#22363C}
.article figure{margin:24px 0}
.article figure img{width:100%;height:auto;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 24px rgba(16,36,43,.08)}
.article figcaption{font-size:14px;color:var(--muted);margin-top:10px}
.qa{margin:0 0 20px}.qa h3{font-size:18px;margin:0 0 6px}.qa p{margin:0}
.guide-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:24px 0}
.guide-list a{display:block;border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px;text-decoration:none;color:var(--ink)}
.guide-list a:hover{border-color:var(--accent)}
.guide-list strong{display:block;font-size:17px;margin-bottom:6px}
.guide-list span{color:var(--muted);font-size:15px}
@media (max-width:720px){.guide-list{grid-template-columns:minmax(0,1fr)}}

/* consent banner */
.consent{position:fixed;left:16px;right:16px;bottom:16px;max-width:560px;margin:0 auto;background:#fff;border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:20px;box-shadow:0 16px 48px rgba(16,36,43,.2);z-index:20;font-size:14px}
.consent p{margin:0 0 14px;color:var(--muted)}
.consent .btn{flex:1 1 0}

/* Nebenkosten tool */
.steps{display:flex;flex-direction:column;gap:24px}
.step{border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;min-width:0}
.step-head{display:flex;gap:12px;align-items:baseline;margin-bottom:16px}
.step-no{flex:none;width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;font-size:14px;display:inline-flex;align-items:center;justify-content:center}
.step-head h3{font-size:19px;margin:0}
.step-head p{margin:2px 0 0;color:var(--muted);font-size:14px}
.items{display:flex;flex-direction:column;gap:10px;margin-bottom:12px}
.item{display:grid;gap:10px;align-items:end;padding:12px;border:1px solid var(--line);border-radius:var(--radius);background:#FBFCFD}
.item-unit{grid-template-columns:2fr 1fr 1fr auto}
.item-ten{grid-template-columns:1.3fr 2fr .8fr auto}
.item-cost{grid-template-columns:2fr 1fr 1.7fr auto}
.item .extra{grid-column:1/-1;display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;align-items:end}
.item .extra.x-plain{grid-template-columns:3fr 1.7fr 44px}
.item .extra.x-cons{grid-template-columns:2fr 1fr 1fr 1.3fr}
.item .extra.x-heat{grid-template-columns:1.3fr .9fr .7fr .9fr 1.5fr}
.item .field{font-size:13px}
table.matrix{border-collapse:collapse;font-size:14px;min-width:100%}
table.matrix th,table.matrix td{padding:8px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
table.matrix input{min-width:110px}
.warn{background:#FFF7E6;border:1px solid #F0D9A8;border-radius:var(--radius);padding:12px 16px;font-size:14px;margin:0 0 8px}
.err{background:#FDECEC;border:1px solid #F1B5B5;border-radius:var(--radius);padding:12px 16px;font-size:14px;margin:0 0 8px;color:var(--danger)}
.result-card{border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:12px}
.result-card .total-line{font-size:17px}
.bal-pos{color:var(--danger)}.bal-neg{color:#1D6B3A}
.deadline{font-size:14px;color:var(--muted)}
.pill{display:inline-block;font-size:12px;font-weight:600;border-radius:999px;padding:2px 10px;background:#E7F0F6;color:var(--accent-dark)}
@media (max-width:860px){
  .item-unit,.item-ten,.item-cost{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .item .extra,.item .extra.x-plain,.item .extra.x-cons,.item .extra.x-heat{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .item{position:relative}
  .item>[data-remove]{position:absolute;top:8px;right:8px;min-height:36px;min-width:36px}
  .item>.field:first-child{grid-column:1/-1;padding-right:48px}
  .item .extra>.field:first-child{grid-column:1/-1}
  .item-ten .extra>.field:first-child{grid-column:auto}
  .item .hint{display:none}
  .item-cost{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr)}
  .item-ten{grid-template-columns:minmax(0,1.6fr) minmax(0,.6fr)}
}
h1,h2{hyphens:auto;-webkit-hyphens:auto;overflow-wrap:break-word}
.hero h1{font-size:clamp(32px,4.4vw,48px)}
.gen-side{flex:1 1 320px}

/* Design C "Amtlich": navy header, amber call to action, serif headings, square corners */
h1,h2,h3,.doc-title{font-family:var(--serif);letter-spacing:0}
.site-header{background:var(--accent);border:0}
.site-header .brand,.site-header .brand:hover,.nav a{color:#fff}
.nav a{opacity:.8}.nav a:hover,.nav a[aria-current=page]{color:#fff;opacity:1}
.btn-primary{background:var(--cta);color:var(--accent)}.btn-primary:hover{background:var(--cta-dark);color:var(--accent)}
.btn,.step,.card,.doc,.item,.result-card,.price-card,.callout,.guide-list a,dialog,input,select,textarea{border-radius:3px}
.step-no{border-radius:3px}
.step{border-left:4px solid var(--accent)}
.eyebrow{color:#9A6A00}
.doc{box-shadow:none;border:1px solid var(--line-strong)}
.verdict{border-left:4px solid var(--accent);background:var(--surface);padding:14px 18px;margin:16px 0 20px}
.verdict p{margin:6px 0 0}
.verdict-yes{border-left-color:#2E7D4F}.verdict-part{border-left-color:#C98A12}.verdict-no{border-left-color:#B3261E}
.co2-calc{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;align-items:end;margin:16px 0 8px}
.co2-result{grid-column:1/-1;background:var(--surface);border:1px solid var(--line);padding:16px 18px;display:flex;flex-wrap:wrap;gap:8px 24px}
.co2-result strong{flex-basis:100%}
@media (max-width:720px){.co2-calc{grid-template-columns:minmax(0,1fr)}}

/* Factory fix 2026-10-31: custom chevron for every select (native arrow looked out of place), and label hints
   kept on the label line so inputs in a row stay aligned. */
select{-webkit-appearance:none;-moz-appearance:none;appearance:none;padding-right:40px;cursor:pointer;text-overflow:ellipsis;white-space:nowrap;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%234B5870' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:12px 8px}
select:hover{border-color:var(--ink)}
select::-ms-expand{display:none}
.field>span{display:block}
.field>span .hint{margin-left:6px}