:root{
  --bg:#EEF1F4; --paper:#FFFFFF; --ink:#16212C; --muted:#5B6773; --line:#D5DBE1;
  --meter:#1B2733; --meter-ink:#F4F6F8; --amber:#F2B705; --ok:#237247; --over:#C8372D;
  --field:#F6F8FA; --focus:#1A5FB4; --deposit:#5C7A99;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#10161C; --paper:#18212A; --ink:#E8EDF2; --muted:#9AA7B4; --line:#2A3642;
    --meter:#0A0F14; --amber:#F5C431; --ok:#4CB37A; --over:#E5574C;
    --field:#1F2A35; --focus:#6FA8F5; --deposit:#7F9BB8;
  }
}
:root[data-theme="dark"]{
  --bg:#10161C; --paper:#18212A; --ink:#E8EDF2; --muted:#9AA7B4; --line:#2A3642;
  --meter:#0A0F14; --amber:#F5C431; --ok:#4CB37A; --over:#E5574C;
  --field:#1F2A35; --focus:#6FA8F5; --deposit:#7F9BB8;
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:17px;line-height:1.55}
h1,h2,h3{font-family:"Bricolage Grotesque","Atkinson Hyperlegible",system-ui,sans-serif;line-height:1.15;margin:0}
a{color:var(--focus)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:4px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

header.top{padding:18px 0;border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.brand{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:20px;text-decoration:none;color:var(--ink);display:flex;align-items:center;gap:10px}
.brand-mark{width:26px;height:26px;border-radius:50%;background:var(--amber);display:grid;place-items:center;color:#1B2733;font-size:15px}
nav.top{display:flex;gap:4px;flex-wrap:wrap}
nav.top a{color:var(--muted);text-decoration:none;font-size:15px;padding:6px 10px;border-radius:8px}
nav.top a:hover{color:var(--ink)}
nav.top a[aria-current="page"]{color:var(--ink);background:var(--paper);border:1px solid var(--line);font-weight:700}

.intro{padding-top:40px;padding-bottom:22px}
.intro h1{font-size:clamp(30px,5vw,50px);font-weight:800;max-width:18ch;letter-spacing:-.01em}
.intro p{color:var(--muted);max-width:60ch;margin:14px 0 0}

.app{display:grid;grid-template-columns:minmax(0,1fr) 370px;gap:28px;align-items:start;padding-bottom:40px}
@media (max-width:900px){.app{grid-template-columns:minmax(0,1fr)}}

.panel{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:20px}
.panel h2{font-size:22px;font-weight:700;margin-bottom:4px}
.panel .hint,.hint{color:var(--muted);font-size:15px;margin:0 0 16px}

.adder{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.adder select{flex:1 1 220px}
select,input{font:inherit;font-size:16px;color:var(--ink);background:var(--field);border:1px solid var(--line);border-radius:8px;padding:9px 10px;min-width:0;width:100%}
.adder select{width:auto}
input[type=number]{font-variant-numeric:tabular-nums}
button{font:inherit;font-size:15px;cursor:pointer;border-radius:8px;border:1px solid var(--line);background:var(--field);color:var(--ink);padding:9px 14px}
button.primary{background:var(--ink);color:var(--paper);border-color:var(--ink);font-weight:700}
button.ghost{background:transparent}

.rows-head,.row{display:grid;grid-template-columns:minmax(0,2.2fr) 0.9fr 0.8fr 0.75fr 0.6fr 0.95fr 36px;gap:8px;align-items:center}
.rows-head{font-size:13px;color:var(--muted);padding:0 0 6px;border-bottom:1px solid var(--line)}
.row{padding:9px 0;border-bottom:1px solid var(--line)}
.row .kwh{text-align:right;font-variant-numeric:tabular-nums;font-weight:700}
.row .kwh small{display:block;font-weight:400;color:var(--muted);font-size:13px}
.row .del{padding:6px 0;width:36px;border:none;background:transparent;color:var(--muted);font-size:20px;line-height:1}
.row .del:hover{color:var(--over)}
.row label{display:none}
@media (max-width:640px){
  .rows-head{display:none}
  .row{grid-template-columns:1fr 1fr 1fr 1fr;row-gap:6px}
  .row .name{grid-column:1 / 4}
  .row .name{grid-row:1}
  .row .del{grid-column:4;grid-row:1;justify-self:end}
  .row label{display:block;font-size:12px;color:var(--muted)}
  .row input{padding:9px 6px}
  .row .f{display:flex;flex-direction:column}
  .row .kwh{grid-column:1 / -1;text-align:left;display:flex;gap:10px;align-items:baseline}
}
.empty{padding:22px 0;color:var(--muted)}

.tariff{margin-top:18px}
.tariff summary{cursor:pointer;font-weight:700}
.tariff-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:12px}
.tariff-grid label{font-size:14px;color:var(--muted);display:flex;flex-direction:column;gap:4px}
@media (max-width:640px){.tariff-grid{grid-template-columns:1fr}}

.side{position:sticky;top:calc(env(safe-area-inset-top,0px) + 16px);display:flex;flex-direction:column;gap:16px}
@media (max-width:900px){.side{position:static}}
.meter{background:var(--meter);color:var(--meter-ink);border-radius:18px;padding:22px 20px 20px;box-shadow:inset 0 0 0 6px rgba(255,255,255,.04)}
.meter-label{font-size:14px;color:#AEB9C4;display:flex;justify-content:space-between}
.counter{display:flex;gap:4px;margin:10px 0 4px}
.digit{flex:1;max-width:46px;background:#F4F6F8;color:#14202B;font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:34px;text-align:center;border-radius:5px;padding:4px 0;font-variant-numeric:tabular-nums;box-shadow:inset 0 -10px 12px -8px rgba(0,0,0,.25)}
.digit.dec{background:#C8372D;color:#fff}
.digit.sep{background:transparent;color:#AEB9C4;flex:0 0 auto;width:10px;padding:4px 0;box-shadow:none}
.unit{font-size:14px;color:#AEB9C4}
.cost{margin-top:18px;padding-top:16px;border-top:1px dashed rgba(255,255,255,.18)}
.cost-big{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:40px;font-variant-numeric:tabular-nums;line-height:1.05;overflow-wrap:anywhere}
.cost-sub{color:#AEB9C4;font-size:15px}
.cost-year{margin-top:8px;font-size:16px}

.limit{margin-top:18px}
.limit-track{position:relative;height:12px;border-radius:6px;background:rgba(255,255,255,.12)}
.limit-ok,.limit-over{position:absolute;top:0;height:100%}
.limit-ok{left:0;background:#237247;border-radius:6px 0 0 6px}
.limit-over{background:#C8372D;border-radius:0 6px 6px 0}
.limit-mark{position:absolute;top:-5px;width:2px;height:22px;background:#F2B705}
.limit-text{font-size:14px;color:#D6DDE3;margin-top:10px}
.limit-text b{color:#F2B705}

.breakdown h3{font-size:18px;margin-bottom:10px}
.bitem{margin:0 0 10px}
.bitem-top{display:flex;justify-content:space-between;gap:10px;font-size:15px}
.bitem-top span:last-child{font-variant-numeric:tabular-nums;color:var(--muted);white-space:nowrap}
.bbar{height:7px;border-radius:4px;background:var(--line);margin-top:4px;overflow:hidden}
.bbar i{display:block;height:100%;background:var(--amber);border-radius:4px}

/* pénzügyi kalkulátor */
.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
@media (max-width:640px){.fields{grid-template-columns:1fr}}
.fields label{display:flex;flex-direction:column;gap:5px;font-size:15px;font-weight:700}
.fields label span.note{font-weight:400;color:var(--muted);font-size:13px}
.fields .full{grid-column:1 / -1}
.stat-list{margin:16px 0 0;padding:14px 0 0;border-top:1px dashed rgba(255,255,255,.18);display:grid;gap:7px}
.stat-list div{display:flex;justify-content:space-between;gap:10px;font-size:15px}
.stat-list dt{color:#AEB9C4}
.stat-list dd{margin:0;font-variant-numeric:tabular-nums;text-align:right}
.chart-panel{margin-top:22px}
.chart-panel h3{font-size:18px;margin-bottom:4px}
.legend{display:flex;gap:16px;font-size:14px;color:var(--muted);margin:6px 0 10px;flex-wrap:wrap}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.chart-wrap{overflow-x:auto}
.chart-wrap svg{display:block;width:100%;min-width:480px;height:auto}
.yt{margin-top:14px}
.yt summary{cursor:pointer;font-weight:700}

article{padding-top:8px;padding-bottom:40px}
article .cols{max-width:760px}
article h2{font-size:28px;font-weight:700;margin:34px 0 10px}
article h2:first-child{margin-top:0}
article h3{font-size:20px;margin:22px 0 8px}
article p,article li{max-width:68ch}
article p{margin:0 0 12px}
.price-table{width:100%;border-collapse:collapse;margin:8px 0 14px;font-size:16px}
.price-table th,.price-table td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line)}
.price-table td:last-child,.price-table th:last-child{text-align:right;font-variant-numeric:tabular-nums}
.table-wrap{overflow-x:auto;max-width:68ch}
.callout{background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:8px;padding:14px 16px;margin:14px 0;max-width:68ch}
details.faq{border-bottom:1px solid var(--line);padding:12px 0;max-width:68ch}
details.faq summary{cursor:pointer;font-weight:700}
details.faq p{margin:8px 0 0}
.legal{max-width:1120px;margin:0 auto;padding:40px 20px 50px}
.legal > *{max-width:720px}
.legal h1{font-size:clamp(28px,4vw,40px);font-weight:800;margin-bottom:12px}
.legal h2{font-size:22px;margin:28px 0 8px}
.legal .fill{background:#FFF3C4;color:#3A2E00;padding:0 4px;border-radius:3px}
footer{border-top:1px solid var(--line);padding:24px 0 34px;color:var(--muted);font-size:14px}
footer .links{margin-top:10px;display:flex;gap:16px;flex-wrap:wrap}
footer a{color:var(--muted)}
@media (prefers-reduced-motion: no-preference){
  .limit-ok,.limit-over,.bbar i{transition:width .35s ease, left .35s ease}
}

/* gázfűtés */
.seg{display:inline-flex;background:var(--field);border:1px solid var(--line);border-radius:10px;padding:3px;gap:3px;margin-top:8px;flex-wrap:wrap}
.seg button{border:none;background:transparent;padding:8px 12px;border-radius:7px;color:var(--muted);font-weight:700}
.seg button[aria-selected="true"]{background:var(--paper);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.save h3{font-size:18px;margin-bottom:10px}
.save-row{display:flex;justify-content:space-between;gap:10px;padding:9px 0;border-bottom:1px solid var(--line)}
.save-row:last-of-type{border-bottom:none}
.save-row span{display:block;font-size:13px;color:var(--muted);font-weight:400}
.save-val{text-align:right;font-weight:700;color:var(--ok);font-variant-numeric:tabular-nums}
[hidden]{display:none!important}

/* klíma vs gáz */
.scen{margin-top:16px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.18);display:grid;gap:4px}
.scen-row{display:flex;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:8px;font-size:15px}
.scen-row span:last-child{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.scen-row small{display:block;color:#AEB9C4;font-size:12px}
.scen-row em{font-style:normal;font-size:11px;background:#237247;color:#fff;border-radius:4px;padding:1px 6px;margin-left:4px;vertical-align:1px}
.scen-row.best{background:rgba(46,139,87,.22);font-weight:700}
.why p{font-size:15px;margin:0 0 8px}
.share-row{display:flex;align-items:center;gap:14px;margin-bottom:6px}
.share-row input[type=range]{flex:1;accent-color:var(--amber);padding:0;border:none;background:transparent}
.share-row output{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:22px;min-width:3.2em;text-align:right;font-variant-numeric:tabular-nums}

/* menü csoportok */
nav.top{align-items:center}
.navgrp{position:relative}
.navgrp summary{list-style:none;cursor:pointer;color:var(--muted);font-size:15px;padding:6px 10px;border-radius:8px;display:flex;align-items:center;gap:5px;user-select:none}
.navgrp summary::-webkit-details-marker{display:none}
.navgrp summary::after{content:"";width:6px;height:6px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .15s}
.navgrp[open] summary::after{transform:rotate(-135deg) translateY(-1px)}
.navgrp summary:hover{color:var(--ink)}
.navgrp.current summary{color:var(--ink);background:var(--paper);border:1px solid var(--line);font-weight:700}
.navmenu{position:absolute;right:0;top:calc(100% + 6px);min-width:250px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:6px;box-shadow:0 10px 30px rgba(0,0,0,.12);z-index:20;display:flex;flex-direction:column}
nav.top .navmenu a{margin:0;padding:9px 12px;border-radius:8px;color:var(--ink);font-size:15px}
nav.top .navmenu a:hover{background:var(--field)}
nav.top .navmenu a[aria-current="page"]{background:var(--field);font-weight:700;border:none}
@media (max-width:520px){header.top .wrap{position:relative}.navgrp{position:static}.navmenu{left:12px;right:12px;min-width:0}}

/* főoldal */
.hub-intro h1{max-width:16ch}
.hub{padding-bottom:20px}
.hub-group{margin-bottom:30px}
.hub-group h2{font-size:22px;margin-bottom:12px}
.hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.hub-card{display:block;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:18px;text-decoration:none;color:var(--ink);transition:border-color .15s, transform .15s}
.hub-card:hover{border-color:var(--amber);transform:translateY(-2px)}
.hub-card h3{font-size:19px;margin:10px 0 6px}
.hub-card p{margin:0;color:var(--muted);font-size:15px}
.hub-ico{display:grid;place-items:center;width:42px;height:42px;border-radius:10px;background:var(--field);font-size:22px}
footer .calc-links{display:flex;gap:6px 16px;flex-wrap:wrap;margin:0 0 14px}
@media (prefers-reduced-motion: reduce){.hub-card{transition:none}.hub-card:hover{transform:none}}
.fields > label{min-width:0}
.seg{max-width:100%}
.seg button{white-space:normal;text-align:center}
@media (max-width:900px){
  .app > div:first-child:not(.panel){display:contents}
  .app > div:first-child:not(.panel) > .panel:first-child{order:1}
  .app > .side{order:2}
  .app .chart-panel{order:3;margin-top:0}
}
.checked{font-size:14px;color:var(--muted);margin-top:10px!important;display:flex;align-items:center;gap:6px}
.checked::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--ok);flex:none}
.calc-tip{margin-top:12px;font-size:15px}
.inflrow{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* mobil: semmi ne lóghasson ki oldalra */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
html,body{overflow-x:clip}
@media (max-width:640px){
  .chart-wrap svg{min-width:0}
  .yt .price-table{font-size:13px}
  .yt .price-table th,.yt .price-table td{padding:7px 5px}
  .yt .price-table td:nth-child(2),.yt .price-table th:nth-child(2){display:none}
}

/* sablonok */
.feats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:10px}
@media (max-width:640px){.feats{grid-template-columns:1fr}}
.feat{background:var(--field);border:1px solid var(--line);border-radius:10px;padding:14px}
.feat h3{font-size:16px;margin-bottom:4px}
.feat p{margin:0;font-size:15px;color:var(--muted)}
.how{margin:10px 0 0;padding-left:22px}
.how li{margin-bottom:8px}
.dl-btn{display:block;text-align:center;margin-top:18px;background:#F2B705;color:#1B2733;font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:20px;padding:14px;border-radius:12px;text-decoration:none}
.dl-btn:hover{background:#FFC928}
.dl-note{font-size:13px;color:#AEB9C4;margin:10px 0 0}
/* kapcsolódó */
.related{padding-top:24px;padding-bottom:40px}
.related h2{font-size:24px;margin-bottom:12px}
.related .hub-card{padding:14px}
.related .hub-card h3{font-size:17px;margin:8px 0 4px}
.related .hub-ico{width:36px;height:36px;font-size:19px}

/* megosztás + nyomtatás */
.kf-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.kf-actions button{flex:1 1 140px;font-weight:700;background:var(--paper)}
.kf-actions button:hover{border-color:var(--amber)}
#kfMsg{flex-basis:100%;font-size:14px;color:var(--ok);min-height:0}
#kfMsg:empty{display:none}
.print-head,.print-foot{display:none}
@media print{
  :root,:root[data-theme="dark"],:root:not([data-theme="light"]){--bg:#fff;--paper:#fff;--ink:#16212C;--muted:#5B6773;--line:#C9D1D8;--field:#fff;--deposit:#5C7A99;--amber:#F2B705;--ok:#237247;--over:#C8372D;padding:0}
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  @page{margin:12mm}
  body{background:#fff;font-size:12px}
  header.top,footer,.related,article,.kf-actions,.checked,.adder,.seg,.del,#reset,button,.navgrp,details.tariff,.intro p{display:none!important}
  .print-head{display:flex;align-items:center;gap:12px;border-bottom:2px solid #1B2733;padding-bottom:8px;margin-bottom:10px}
  .print-head svg{width:40px;height:40px}
  .print-head b{font-family:"Bricolage Grotesque",sans-serif;font-size:20px}
  .print-head span{display:block;font-size:10px;color:#5B6773;word-break:break-all}
  .print-foot{display:block;margin-top:12px;padding-top:6px;border-top:1px solid #C9D1D8;font-size:10px;color:#5B6773}
  .wrap{max-width:none;padding:0}
  .intro{padding:0 0 8px}
  .intro h1{font-size:22px;max-width:none}
  .app{display:grid!important;grid-template-columns:1fr 1fr!important;gap:12px;padding:0}
  .app > div:first-child:not(.panel){display:contents}
  .side{position:static;order:0!important}
  .panel,.meter{break-inside:avoid;border:1px solid #C9D1D8;border-radius:8px;padding:10px;box-shadow:none}
  .chart-panel{grid-column:1/-1;margin-top:0}
  .meter{background:#fff!important;color:#16212C!important;border:2px solid #1B2733}
  .meter .cost-sub,.meter .unit,.meter-label,.stat-list dt,.limit-text,.scen-row small,.dl-note{color:#5B6773!important}
  .limit-text b{color:#16212C!important}
  .cost-big{font-size:26px!important}
  .digit{font-size:22px;border:1px solid #C9D1D8}
  .scen-row.best{background:#E3F1E8}
  input,select{border:1px solid #C9D1D8;padding:4px 6px;font-size:12px;background:#fff}
  .fields{gap:8px}
  .rows-head,.row{gap:4px}
  .chart-wrap svg{min-width:0}
}
.yearend{margin-top:16px;border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:10px;padding:14px;background:var(--field)}
.yearend h3{font-size:17px}
@media print{.yearend{display:none}}
footer .copy{margin-top:12px;font-size:13px}
.nf-code{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:clamp(70px,14vw,140px);line-height:1;color:var(--amber)}
.nf-btn{display:inline-block;background:var(--ink);color:var(--paper);text-decoration:none;font-weight:700;padding:11px 18px;border-radius:10px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ===== nyomtatás: egy A4-es oldal ===== */
@media print{
  @page{size:A4;margin:0}
  html,body{width:210mm}
  body{padding:9mm 11mm;font-size:10.5px;line-height:1.35}
  .print-head{padding-bottom:5px;margin-bottom:6px}
  .print-head svg{width:30px;height:30px}
  .print-head b{font-size:16px}
  .print-head span{font-size:9px}
  .intro{padding:0 0 5px}
  .intro h1{font-size:18px}
  .hint,.note,.legend,.yt,.calc-tip,#kfMsg,.chart-panel .hint,.chart-panel p{display:none!important}
  .app{grid-template-columns:1.45fr 1fr!important;gap:8px!important;align-items:start}
  .panel,.meter{break-inside:auto;padding:7px 9px;border-radius:6px}
  .panel h2{font-size:13px;margin-bottom:4px}
  .panel h3,.chart-panel h3,.breakdown h3,.save h3{font-size:12px;margin-bottom:4px}
  .fields{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:4px 8px!important}
  .fields label{font-size:10px;gap:2px}
  input,select{font-size:10px;padding:2px 4px;border-radius:4px;min-height:0}
  select{-webkit-appearance:none;appearance:none}
  .side{gap:6px}
  .cost-big{font-size:20px!important}
  .cost-sub,.cost-year,.stat-list div,.scen-row,.limit-text,.why p,.bitem-top,.save-row{font-size:10px!important}
  .stat-list{margin-top:6px;padding-top:6px;gap:2px}
  .cost{margin-top:6px;padding-top:6px}
  .scen{margin-top:6px;padding-top:6px}
  .scen-row{padding:3px 6px}
  .counter{margin:4px 0 2px}
  .digit{font-size:15px;max-width:26px;padding:1px 0}
  .limit{margin-top:6px}.limit-track{height:7px}.limit-mark{height:14px;top:-4px}
  .bitem{margin:0 0 4px}.bbar{height:4px;margin-top:2px}
  .chart-panel{grid-column:1/-1}
  .chart-wrap svg{width:100%;height:auto;max-height:58mm}
  /* áram készüléklista */
  .rows-head,.row{grid-template-columns:minmax(0,2.4fr) .8fr .7fr .65fr .55fr 1fr 0!important;gap:3px!important}
  .rows-head{font-size:8.5px;padding-bottom:2px}
  .row{padding:2px 0}
  .row .kwh{font-size:9.5px}.row .kwh small{font-size:8.5px}
  .row label{display:none!important}
  .row .f{display:block}
  .why p{margin:0 0 3px}
  .save-row{padding:3px 0}
  .feats,.how{display:none}
}
@media print{ .app:has(> div:first-child:not(.panel)){grid-template-columns:1fr 1fr!important} }