/* Budgetrechner */
section.section{padding:56px 0 96px}
.rechner-intro{max-width:780px;font-size:18px;line-height:1.75;color:var(--ink-soft);margin:0 0 44px}

/* ---- Tabs ---- */
.tabs{display:flex;gap:10px;flex-wrap:wrap;border-bottom:2px solid var(--line);margin-bottom:44px}
.tab{background:none;border:none;border-bottom:3px solid transparent;margin-bottom:-2px;padding:16px 26px;font-size:17px;font-weight:600;font-family:var(--font-sans);color:var(--ink-soft);cursor:pointer;transition:color .2s,border-color .2s,background .2s;border-radius:4px 4px 0 0}
.tab:hover{color:var(--brand-dark);background:rgba(0,82,159,.05)}
.tab.active{color:var(--brand-dark);border-bottom-color:var(--brand)}
.panel{display:none}
.panel.active{display:block;animation:panel-in .35s ease}
@keyframes panel-in{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.panel-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start}

/* ---- Formularkarte ---- */
.calc-form{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:40px 42px 36px;box-shadow:0 4px 20px rgba(11,30,51,.05)}
.calc-form h2{font-size:32px;line-height:1.2;margin-bottom:8px}
.calc-sub{font-size:16px;line-height:1.6;color:var(--ink-soft);margin:0 0 32px}
.field{margin-bottom:30px}
.field:last-child{margin-bottom:0}
.field>label,.field-label{display:block;font-size:15px;font-weight:600;color:var(--ink);margin-bottom:12px;letter-spacing:0;text-transform:none}
.field select{width:100%;min-width:0;max-width:100%;border:1px solid var(--line);background:var(--surface);border-radius:4px;padding:14px 16px;font-size:16px;font-family:var(--font-sans);color:var(--ink)}
.field select:focus{outline:2px solid var(--brand);outline-offset:1px}
.field-hint{font-size:14px;line-height:1.6;color:var(--ink-soft);margin-top:10px}

/* ---- Auswahlkarten (Radio & Checkbox) ---- */
.opt-grid{display:grid;gap:12px}
.opt-grid.cols-2{grid-template-columns:1fr 1fr}
.opt-grid.pills{display:flex;flex-wrap:wrap;gap:10px}
.opt-grid.pills .opt{flex:1 1 130px;min-width:0}
.opt{position:relative;display:flex;align-items:flex-start;gap:12px;padding:15px 16px;border:1.5px solid var(--line);border-radius:6px;background:var(--surface);cursor:pointer;transition:border-color .18s,background .18s,box-shadow .18s,transform .12s;min-height:100%}
.opt:hover{border-color:var(--brand-bright);background:#F7FBFE}
.opt:active{transform:scale(.99)}
.opt input{flex:0 0 auto;width:20px;height:20px;margin:1px 0 0;accent-color:var(--brand);cursor:pointer}
.opt:focus-within{outline:2px solid var(--brand);outline-offset:2px}
.opt.is-on{border-color:var(--brand);background:#EFF6FC;box-shadow:0 0 0 1px var(--brand) inset}
/* min-width:0, damit lange Wörter wie "Grundriss-/Wandänderungen" umbrechen
   statt die Karte auf schmalen Displays aufzuweiten. */
.opt-text{display:flex;flex-direction:column;gap:3px;line-height:1.35;min-width:0}
.opt-title{font-size:15.5px;font-weight:600;color:var(--ink)}
.opt-sub{font-size:13.5px;color:var(--ink-soft)}
.opt.pill{align-items:center;justify-content:center;text-align:center;padding:13px 12px}
.opt.pill input{position:absolute;opacity:0;width:1px;height:1px}
.opt.pill .opt-title{font-size:15px}

/* ---- Segmentierter Umschalter ---- */
.seg{display:inline-flex;padding:4px;background:#EDF3F9;border:1px solid var(--line);border-radius:8px;gap:4px;flex-wrap:wrap}
.seg-item{position:relative;cursor:pointer}
.seg-item input{position:absolute;opacity:0;width:1px;height:1px}
.seg-item span{display:block;padding:11px 20px;border-radius:6px;font-size:15px;font-weight:600;color:var(--ink-soft);transition:background .18s,color .18s,box-shadow .18s}
.seg-item:hover span{color:var(--brand-dark)}
.seg-item.is-on span{background:var(--surface);color:var(--brand-dark);box-shadow:0 2px 8px rgba(11,30,51,.12)}
.seg-item:focus-within span{outline:2px solid var(--brand);outline-offset:2px}

/* ---- Schieberegler ---- */
.field.range>label{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:14px}
.range-out{font-size:20px;font-weight:700;color:var(--brand-dark);text-align:right;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.field.range input[type=range]{--fill:50%;-webkit-appearance:none;appearance:none;width:100%;height:32px;margin:0;padding:0;background:transparent;cursor:pointer;display:block}
.field.range input[type=range]:focus{outline:none}
.field.range input[type=range]:focus-visible{outline:2px solid var(--brand);outline-offset:6px;border-radius:6px}
.field.range input[type=range]::-webkit-slider-runnable-track{height:10px;border-radius:100px;background:linear-gradient(to right,var(--brand) 0,var(--brand) var(--fill),#E3EBF3 var(--fill),#E3EBF3 100%)}
.field.range input[type=range]::-moz-range-track{height:10px;border-radius:100px;background:#E3EBF3}
.field.range input[type=range]::-moz-range-progress{height:10px;border-radius:100px;background:var(--brand)}
.field.range input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:28px;height:28px;margin-top:-9px;border-radius:50%;background:var(--surface);border:4px solid var(--brand);box-shadow:0 3px 10px rgba(11,30,51,.25);transition:transform .12s ease,box-shadow .2s ease}
.field.range input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--surface);border:4px solid var(--brand);box-shadow:0 3px 10px rgba(11,30,51,.25)}
.field.range input[type=range]:hover::-webkit-slider-thumb{transform:scale(1.06)}
.field.range input[type=range]:active::-webkit-slider-thumb{transform:scale(1.12);box-shadow:0 4px 16px rgba(0,82,159,.4)}
.range-scale{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-soft);margin-top:4px}

/* Stufenregler: klickbare Beschriftungen unter der Schiene */
.range-ticks{display:flex;justify-content:space-between;gap:6px;margin-top:6px}
.range-ticks button{flex:1;background:none;border:none;padding:6px 2px;font-family:var(--font-sans);font-size:13.5px;font-weight:600;color:var(--ink-soft);cursor:pointer;border-radius:4px;transition:color .18s,background .18s}
.range-ticks button:hover{color:var(--brand-dark);background:rgba(0,82,159,.06)}
.range-ticks button.on{color:var(--brand-dark)}
.range-ticks button:first-child{text-align:left}
.range-ticks button:last-child{text-align:right}
.range-ticks.five button{font-size:12.5px}

/* ---- Ergebniskarte ---- */
.calc-result{background:linear-gradient(155deg,#143453 0%,#0B1E33 62%);color:var(--on-dark);border-radius:10px;padding:36px 38px;position:sticky;top:110px;box-shadow:0 20px 48px rgba(11,30,51,.22)}
.result-label{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:#9CC4E8;margin-bottom:10px}
.result-value{font-size:clamp(30px,3.4vw,42px);font-weight:700;color:#fff;font-family:var(--font-sans);line-height:1.12;margin-bottom:20px;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.result-extra{font-size:15.5px;line-height:1.65;color:#DCE9F5;margin-bottom:16px}
.result-extra strong{color:#fff}
.result-cta{display:inline-flex;align-items:center;gap:9px;background:var(--brand);color:#fff;font-size:15.5px;font-weight:600;padding:14px 24px;border-radius:3px;margin:6px 0 4px;transition:background .2s,transform .2s,box-shadow .2s}
.result-cta:hover{background:var(--brand-bright);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,82,159,.35)}
.result-note{font-size:13px;line-height:1.65;color:#93AAC2;margin:20px 0 0;border-top:1px solid rgba(255,255,255,.14);padding-top:16px}
.result-note a{color:#9CC4E8;text-decoration:underline}
.result-note a:hover{color:#fff}

/* Farbskala Heizkosten-Check */
.hk-scale{display:flex;border-radius:6px;overflow:hidden;margin:4px 0 18px}
.hk-seg{flex:1;text-align:center;font-size:12.5px;font-weight:600;padding:11px 4px;color:#fff;opacity:.32;transition:opacity .3s}
.hk-seg.niedrig{background:#2E9E4F}
.hk-seg.mittel{background:#D9A400}
.hk-seg.erhoeht{background:#E07B00}
.hk-seg.zuhoch{background:var(--accent)}
.hk-scale.mark-niedrig .hk-seg.niedrig,.hk-scale.mark-mittel .hk-seg.mittel,.hk-scale.mark-erhoeht .hk-seg.erhoeht,.hk-scale.mark-zuhoch .hk-seg.zuhoch{opacity:1;outline:2px solid #fff;outline-offset:-2px}

/* ---- Abschluss, SEO-Text, FAQ ---- */
.rechner-abschluss{margin-top:80px;text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:56px 40px}
.rechner-abschluss h2{font-size:30px;margin-bottom:12px}
.rechner-abschluss p{color:var(--ink-soft);font-size:17px;margin:0 0 26px}
.rechner-seo{max-width:820px;margin:80px auto 0}
.rechner-seo h2{font-size:32px;margin-bottom:18px}
.rechner-seo p{font-size:17px;line-height:1.8;color:var(--ink-soft);margin:0 0 16px}
.rechner-seo .chips{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.rechner-seo .chip{display:inline-flex;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:100px;padding:10px 20px;font-size:14.5px;font-weight:600;color:var(--brand-dark);transition:background .2s,color .2s,border-color .2s}
.rechner-seo .chip:hover{background:var(--brand);color:var(--surface);border-color:var(--brand)}
.rechner-faq{max-width:820px;margin:68px auto 0}
.rechner-faq h2{font-size:32px;margin-bottom:26px;text-align:center}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:6px;margin-bottom:12px;padding:0 26px}
.faq-item summary{cursor:pointer;font-size:17.5px;font-weight:600;color:var(--ink);padding:21px 0;list-style:none;position:relative;padding-right:34px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);font-size:26px;color:var(--brand);font-weight:400;transition:transform .2s}
.faq-item[open] summary::after{content:"–"}
.faq-item p{font-size:16px;line-height:1.75;color:var(--ink-soft);margin:0;padding:0 0 24px}

@media(prefers-reduced-motion:reduce){.field.range input[type=range]::-webkit-slider-thumb{transition:none}.panel.active{animation:none}}
@media(max-width:1000px){.panel-grid{grid-template-columns:1fr;gap:32px}.calc-result{position:static}}
@media(max-width:600px){
  .calc-form{padding:28px 22px 26px}
  .calc-form h2{font-size:26px}
  .calc-sub{font-size:15px;margin-bottom:26px}
  .opt-grid.cols-2{grid-template-columns:1fr}
  .field.range>label{flex-direction:column;gap:4px;align-items:flex-start}
  .range-out{text-align:left;font-size:22px}
  .calc-result{padding:28px 24px}
  .tab{padding:13px 16px;font-size:15.5px;flex:1;text-align:center}
  .range-ticks button{font-size:12px;padding:6px 0}
  .range-ticks.five button{font-size:11px}
  .seg{width:100%}
  .seg-item{flex:1}
  .seg-item span{text-align:center;padding:11px 10px;font-size:14px}
  section.section{padding:40px 0 64px}
  .rechner-intro{font-size:16.5px;margin-bottom:32px}
  .tabs{margin-bottom:32px;gap:6px}
  .opt-grid.pills .opt{flex:1 1 100px}
  .hk-seg{font-size:11.5px;padding:9px 2px}
  .rechner-abschluss{margin-top:56px;padding:34px 20px}
  .rechner-abschluss h2{font-size:24px}
  .rechner-abschluss p{font-size:16px}
  .rechner-seo{margin-top:56px}
  .rechner-seo h2,.rechner-faq h2{font-size:25px}
  .rechner-seo p{font-size:16px}
  .rechner-faq{margin-top:48px}
  .faq-item{padding:0 18px}
  .faq-item summary{font-size:16px;padding:18px 0;padding-right:28px}
  .faq-item p{font-size:15px;padding-bottom:20px}
  .result-note{font-size:12.5px}
}
@media(max-width:400px){
  section.section{padding:30px 0 48px}
  .rechner-intro{font-size:15.5px;margin-bottom:26px}
  .tab{padding:11px 8px;font-size:14px}
  .calc-form{padding:20px 14px 20px}
  .calc-form h2{font-size:22px}
  .calc-sub{font-size:14.5px;margin-bottom:22px}
  .field{margin-bottom:24px}
  .field>label,.field-label{font-size:14px;margin-bottom:9px}
  .field select{padding:12px 10px;font-size:15px}
  .field-hint{font-size:13px}
  .opt{padding:12px 11px;gap:9px}
  .opt-title{font-size:14.5px}
  .opt-sub{font-size:12.5px}
  .opt-grid.pills .opt{flex:1 1 80px}
  .opt.pill{padding:11px 8px}
  .opt.pill .opt-title{font-size:14px}
  .seg-item span{padding:10px 6px;font-size:13px}
  .range-out{font-size:19px}
  .range-scale{font-size:12px}
  .range-ticks button{font-size:11px}
  .range-ticks.five button{font-size:10px}
  .calc-result{padding:22px 16px}
  .result-value{font-size:26px}
  .result-extra{font-size:14.5px}
  .result-cta{padding:12px 16px;font-size:14.5px}
  .hk-seg{font-size:10px;padding:8px 1px}
  .rechner-abschluss{padding:26px 14px}
  .rechner-abschluss h2{font-size:21px}
  .rechner-abschluss p{font-size:15px}
  .rechner-seo h2,.rechner-faq h2{font-size:22px}
  .rechner-seo p{font-size:15.5px}
  .rechner-seo .chip{padding:8px 14px;font-size:13.5px}
  .faq-item{padding:0 13px}
  .faq-item summary{font-size:15px;padding-right:24px}
  .faq-item summary::after{font-size:22px}
  .faq-item p{font-size:14.5px}
}