/* ==========================================================================
   VOLTO — wspólny system wizualny (kierunek 1a „Szyna", rozwinięcie v5)
   Papier · tusz · volt. Czerń tylko w małych blokach. Zero zaokrągleń.
   Kroje: Archivo (oś szerokości) + IBM Plex Mono do danych.
   ========================================================================== */

:root{
  --paper:#F4F2ED; --paper-2:#FFFFFF; --paper-3:#ECE9E1;
  --ink:#141414; --ink-2:#2A2A28;
  --txt:#141414; --txt-dim:#45443F; --txt-faint:#6B6963;
  --volt:#E4580B; --volt-ink:#B8420A; --volt-soft:#FBE9DE;
  --line:#DCD8CF; --line-strong:#141414;
  --ok:#1F7A3E;
  --radius:0px; --w:1200px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --font:'Archivo',system-ui,sans-serif;
  --mono:'Archivo',system-ui,sans-serif; --code:'IBM Plex Mono',ui-monospace,Menlo,monospace;
  color-scheme:light;
}

*{margin:0;padding:0;box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--txt);background:var(--paper);line-height:1.6;font-size:17px;
  font-variation-settings:'wdth' 100;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit}
b,strong{font-weight:700}
h1,h2,h3,h4{font-weight:900;line-height:1.02;letter-spacing:-.035em;font-variation-settings:'wdth' 108;text-wrap:balance}
h1{font-size:clamp(36px,5.2vw,62px);letter-spacing:-.035em;line-height:.98;font-variation-settings:'wdth' 103}
h2{font-size:clamp(28px,3.8vw,46px)}
h3{font-size:21px;letter-spacing:-.025em;font-variation-settings:'wdth' 104}
h4{font-size:17px;font-variation-settings:'wdth' 100}
p{max-width:68ch;text-wrap:pretty}
table{font-variant-numeric:tabular-nums}
.mono,[class*=mono]{font-variant-numeric:tabular-nums}
.wrap{max-width:var(--w);margin:0 auto;padding:0 28px}
section{padding:112px 0;border-top:1px solid var(--line)}
section.tight{padding-top:64px}
section.flush{border-top:0;padding-top:0}
.mono{font-family:var(--font);font-size:1em;letter-spacing:0;font-weight:500}
.code,.price-table td.mono,.orders td.mono{font-family:var(--code);font-size:.95em;font-weight:500;letter-spacing:0}
.dim{color:var(--txt-dim)}
.volt{color:var(--volt-ink)}
.nowrap{white-space:nowrap}

/* etykiety */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:13px;font-weight:600;
  letter-spacing:.03em;text-transform:uppercase;color:var(--volt-ink);margin-bottom:22px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--volt)}
.tag{display:inline-block;font-family:var(--mono);font-size:12.5px;letter-spacing:.05em;text-transform:uppercase;
  color:var(--txt-dim);border:1px solid var(--line-strong);padding:3px 8px;line-height:1.4}
.tag.ink{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.tag.volt{background:var(--volt);color:var(--ink);border-color:var(--volt)}
.tag.ok{color:var(--ok);border-color:var(--ok)}

/* przyciski */
.btn{display:inline-flex;align-items:center;gap:12px;background:var(--volt);color:var(--ink);font-weight:800;font-size:16.5px;
  letter-spacing:-.01em;padding:17px 30px;border:0;cursor:pointer;text-decoration:none;line-height:1.2;
  transition:background .18s var(--ease),transform .18s var(--ease),color .18s var(--ease);font-variation-settings:'wdth' 104}
.btn::after{content:"→";font-weight:700;transition:transform .18s var(--ease)}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn:hover::after{transform:none}
.btn:active{transform:translateY(1px)}
.btn.plain::after{content:none}
.btn-ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 2px var(--ink);padding:15px 28px}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-ink{background:var(--ink);color:var(--paper)}
.btn-ink:hover{background:var(--volt);color:var(--ink)}
.btn-sm{padding:11px 18px;font-size:14.5px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.micro{font-family:var(--mono);font-size:13.5px;color:var(--txt-dim);margin-top:14px;letter-spacing:.01em}
.link{color:var(--ink);font-weight:600;text-decoration:none;border-bottom:2px solid var(--volt);padding-bottom:1px;transition:color .15s,border-color .15s}
.link:hover{color:var(--volt-ink);border-color:var(--ink)}

/* nawigacja */
.nav{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:18px 0;border-bottom:2px solid var(--ink);position:relative}
.logo{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.logo .mark{width:28px;height:28px;flex:none}
.logo .mark polygon:first-child{fill:var(--ink)}
.logo span{font-weight:900;font-size:26px;letter-spacing:-.05em;line-height:1;font-variation-settings:'wdth' 110}
.nav ul{display:flex;gap:30px;list-style:none;margin:0 auto 0 48px}
.nav ul li.cta{display:none}
.nav ul a{text-decoration:none;font-size:15px;font-weight:600;color:var(--txt-dim);letter-spacing:-.005em;padding:6px 0;
  border-bottom:2px solid transparent;transition:color .15s,border-color .15s}
.nav ul a:hover,.nav ul a[aria-current]{color:var(--ink);border-color:var(--volt)}
.nav .btn{padding:12px 20px;font-size:14.5px;background:var(--ink);color:var(--paper)}
.nav .btn:hover{background:var(--volt);color:var(--ink)}
.nav-toggle{display:none;background:none;border:2px solid var(--ink);width:44px;height:44px;cursor:pointer;font-family:var(--mono);font-size:12px;font-weight:500}
.nav-note{display:flex;justify-content:space-between;font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;text-transform:uppercase;color:var(--txt-dim);padding:9px 0}
.nav-note b{color:var(--txt-dim);font-weight:500}

/* hero */
.hero{padding:0 0 88px;border-top:0}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:end;padding-top:72px}
.hero .sub{font-size:clamp(17.5px,1.8vw,21px);color:var(--txt-dim);margin:30px 0 38px;max-width:600px;line-height:1.55}
.hero .sub b{color:var(--ink)}
.hero h1 em{font-style:normal;color:var(--volt)}
.hero-single{padding-top:80px;max-width:900px}
.hero-single .sub{max-width:660px}

/* slot na film 3:4 */
.video-slot{position:relative;aspect-ratio:3/4;max-height:560px;width:100%;background:var(--paper-3);border:2px solid var(--ink);overflow:hidden;
  display:grid;grid-template-rows:1fr auto;cursor:pointer}
.video-slot svg.poster{width:100%;height:100%;padding:8%;justify-self:center}
.video-slot img.poster{width:100%;height:100%;object-fit:cover;filter:saturate(.85)}
.video-slot .play{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);width:76px;height:76px;background:var(--volt);
  display:grid;place-items:center;transition:transform .2s var(--ease),background .2s}
.video-slot .play::before{content:"";border-left:22px solid var(--ink);border-top:13px solid transparent;border-bottom:13px solid transparent;margin-left:5px}
.video-slot:hover .play{transform:translate(-50%,-50%) scale(1.06);background:var(--ink)}
.video-slot:hover .play::before{border-left-color:var(--paper)}
.video-slot .cap{background:var(--ink);color:var(--paper);font-family:var(--mono);font-size:12px;letter-spacing:.03em;padding:12px 16px;display:flex;justify-content:space-between;gap:12px}
.video-slot .cap b{color:var(--volt);font-weight:500}

/* pasek dowodów */
.proofbar{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:64px;border-top:2px solid var(--ink);border-bottom:1px solid var(--line)}
.proofbar div{padding:22px 24px 22px 0;border-right:1px solid var(--line);font-family:var(--mono);font-size:13.5px;color:var(--txt-dim);letter-spacing:.02em;text-transform:uppercase}
.proofbar div+div{padding-left:24px}
.proofbar div:last-child{border-right:0}
.proofbar b{display:block;font-family:var(--font);font-weight:900;font-size:36px;color:var(--ink);letter-spacing:-.04em;line-height:1;margin-bottom:8px;text-transform:none;font-variation-settings:'wdth' 108}
.proofbar b small{font-size:19px;font-weight:700;letter-spacing:-.01em;margin-left:4px;color:var(--txt-dim)}

/* nagłówki sekcji */
.sec-head{max-width:720px;margin-bottom:56px}
.sec-head h2{margin-bottom:18px}
.sec-head p{color:var(--txt-dim);font-size:18.5px;line-height:1.55}
.sec-split{display:grid;grid-template-columns:.42fr .58fr;gap:64px;align-items:start}
.sec-split .sticky{position:sticky;top:32px}
.sec-split .sticky h2{margin-bottom:18px}
.sec-split .sticky p{color:var(--txt-dim)}

/* cytat problemu */
.quote{display:grid;grid-template-columns:auto 1fr;gap:28px;max-width:900px}
.quote .bar{width:6px;background:var(--volt);margin-top:8px}
.quote p{font-size:clamp(19px,2.2vw,25px);line-height:1.4;letter-spacing:-.015em;font-weight:500;max-width:none}
.quote p+p{margin-top:18px}
.quote .punch{font-weight:900;letter-spacing:-.03em;font-size:clamp(22px,2.6vw,30px);margin-top:34px;font-variation-settings:'wdth' 108}

/* rachunek (ledger) */
.ledger{border:2px solid var(--ink);background:var(--paper-2)}
.ledger table{width:100%;border-collapse:collapse;font-size:16.5px}
.ledger th,.ledger td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.ledger thead th{font-family:var(--mono);font-size:13px;letter-spacing:.05em;text-transform:uppercase;color:var(--txt-dim);font-weight:600;border-bottom:2px solid var(--ink);background:var(--paper)}
.ledger th.col-b,.ledger td.col-b{background:var(--volt-soft)}
.ledger tbody th{font-weight:600;color:var(--txt);width:34%}
.ledger td{font-family:var(--font);font-size:16px;font-weight:500;color:var(--txt)}
.ledger td small{display:block;font-family:var(--font);font-size:13.5px;color:var(--txt-dim);margin-top:4px}
.ledger tbody th small{display:block;font-weight:400;font-size:13.5px;color:var(--txt-dim);margin-top:3px}
.ledger tfoot td,.ledger tfoot th{border-top:2px solid var(--ink);border-bottom:0;font-weight:900;font-size:20px;letter-spacing:-.03em;font-family:var(--font);font-variation-settings:'wdth' 106}
.ledger tfoot td{font-family:var(--font)}
.ledger tfoot td.col-b{color:var(--volt-ink)}
.notes{font-size:14.5px;color:var(--txt-dim);margin-top:18px;max-width:none;line-height:1.55}
.notes ol{padding-left:18px}
.notes li{margin:4px 0}

/* oś kroków */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:2px solid var(--ink)}
.timeline .step{padding:34px 32px 8px 0;border-right:1px solid var(--line);position:relative}
.timeline .step+.step{padding-left:32px}
.timeline .step:last-child{border-right:0}
.timeline .num{font-family:var(--font);font-weight:900;font-size:64px;letter-spacing:-.06em;line-height:1;color:var(--ink);font-variation-settings:'wdth' 112;margin-bottom:6px}
.timeline .num sup{font-family:var(--mono);font-size:13px;letter-spacing:.05em;text-transform:uppercase;color:var(--volt-ink);vertical-align:top;margin-left:10px;font-weight:600;position:relative;top:12px}
.timeline .when{font-family:var(--mono);font-size:13px;letter-spacing:.05em;text-transform:uppercase;color:var(--volt-ink);margin-bottom:18px}
.timeline h3{margin-bottom:12px}
.timeline p{font-size:16px;color:var(--txt-dim)}

/* macierz odpowiedzialności */
.matrix{border:2px solid var(--ink);background:var(--paper-2);overflow:hidden}
.matrix table{width:100%;border-collapse:collapse}
.matrix th,.matrix td{padding:15px 20px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle;font-size:15.5px}
.matrix thead th{font-family:var(--mono);font-size:13px;letter-spacing:.05em;text-transform:uppercase;font-weight:600;color:var(--txt-dim);border-bottom:2px solid var(--ink);background:var(--paper)}
.matrix thead th.we{color:var(--ink);background:var(--volt);}
.matrix tbody th{font-weight:600;width:30%}
.matrix td{text-align:center;font-family:var(--font);font-size:14.5px;color:var(--txt-dim)}
.matrix td .dot{display:inline-block;width:14px;height:14px;background:var(--ink)}
.matrix td .dot.v{background:var(--volt)}
.matrix td .dot.o{background:transparent;box-shadow:inset 0 0 0 2px var(--line-strong)}
.matrix td .lbl{display:block;font-size:12px;margin-top:6px}
.matrix tr:last-child td,.matrix tr:last-child th{border-bottom:0}
.legend{display:flex;gap:26px;flex-wrap:wrap;margin-top:16px;font-family:var(--mono);font-size:13.5px;color:var(--txt-dim)}
.legend span{display:inline-flex;align-items:center;gap:8px}
.legend i{width:12px;height:12px;background:var(--ink);display:inline-block}
.legend i.v{background:var(--volt)}
.legend i.o{background:transparent;box-shadow:inset 0 0 0 2px var(--ink)}

/* stack */
.stack{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:2px solid var(--ink)}
.stack .cell{background:var(--paper-2);padding:34px 30px 36px;position:relative;transition:background .2s}
.stack .cell:hover{background:var(--paper)}
.stack .idx{font-family:var(--mono);font-size:13px;letter-spacing:.05em;color:var(--volt-ink);margin-bottom:22px;display:flex;justify-content:space-between}
.stack .idx s{text-decoration:none;color:var(--txt-dim)}
.stack h3{margin-bottom:10px}
.stack p{font-size:16px;color:var(--txt-dim)}
.stack .val{margin-top:20px;padding-top:14px;border-top:1px solid var(--line);font-family:var(--font);font-size:14px;color:var(--txt-dim);display:flex;justify-content:space-between}
.stack .val b{color:var(--ink);font-weight:700}

/* kotwica wartości */
.anchor{display:grid;grid-template-columns:1fr auto;gap:56px;align-items:end;border-top:2px solid var(--ink);padding-top:40px}
.anchor ul{list-style:none}
.anchor li{display:flex;justify-content:space-between;gap:24px;padding:14px 0;border-bottom:1px solid var(--line);font-size:17px}
.anchor li span:last-child{font-family:var(--font);font-weight:700;color:var(--txt);white-space:nowrap}
.anchor .total{text-align:right}
.anchor .total .was{font-family:var(--mono);font-size:15px;color:var(--txt-dim);text-decoration:line-through}
.anchor .total .now{font-weight:900;font-size:clamp(56px,7vw,96px);letter-spacing:-.06em;line-height:.95;color:var(--volt);font-variation-settings:'wdth' 112}
.anchor .total .cond{font-size:14px;color:var(--txt-dim);margin-top:10px;max-width:280px;margin-left:auto}

/* gwarancje jako dokumenty */
.guar{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.guar .g{background:var(--paper-2);border:1px solid var(--ink);padding:36px 32px 32px;position:relative;overflow:hidden}
.guar .g::before{content:"";position:absolute;left:0;top:0;right:0;height:6px;background:var(--volt)}
.guar .g .no{font-family:var(--mono);font-size:13px;letter-spacing:.03em;text-transform:uppercase;color:var(--txt-dim);margin-bottom:26px;display:flex;justify-content:space-between}
.guar h3{font-size:24px;margin-bottom:14px}
.guar p{font-size:16px;color:var(--txt-dim)}
.guar p b{color:var(--ink)}
.stamp{display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.07em;text-transform:uppercase;color:var(--volt-ink);
  border:1.5px solid var(--volt-ink);padding:5px 9px;margin-top:24px}

/* ludzie */
.who{display:grid;grid-template-columns:.42fr .58fr;gap:56px;align-items:start}
.person-card{border:2px solid var(--ink);background:var(--paper-2)}
.person-card .mono-tile{aspect-ratio:1;background:var(--ink);color:var(--paper);display:grid;place-items:center;position:relative;overflow:hidden}
.person-card .mono-tile b{font-size:clamp(90px,12vw,150px);font-weight:900;letter-spacing:-.08em;line-height:1;font-variation-settings:'wdth' 112}
.person-card .mono-tile i{position:absolute;right:18px;bottom:16px;font-family:var(--mono);font-style:normal;font-size:12px;letter-spacing:.03em;color:var(--volt);text-transform:uppercase}
.person-card .meta{padding:20px 22px}
.person-card .meta > b{display:block;font-size:19px;letter-spacing:-.02em}
.person-card .meta > span{display:block;font-size:14.5px;color:var(--txt-dim);margin-top:4px}
.person-card .meta .tel{font-family:var(--mono);font-size:15px;color:var(--ink);margin-top:12px}
.who .text p{color:var(--txt-dim);font-size:17.5px}
.who .text p b{color:var(--ink)}
.who .text p+p{margin-top:16px}
.who .said{border-left:4px solid var(--volt);padding:6px 0 6px 22px;margin:28px 0;font-size:20px;font-weight:500;letter-spacing:-.01em;line-height:1.45;color:var(--ink)}
.who .said small{display:block;font-family:var(--mono);font-size:13.5px;color:var(--txt-dim);margin-top:10px;font-weight:400;letter-spacing:.02em}
.people{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}
.people .p{border-top:2px solid var(--ink);padding-top:14px;font-size:15px;color:var(--txt-dim)}
.people .p b{display:block;color:var(--ink);font-size:16px}
.people .p .tel{font-family:var(--mono);color:var(--ink);display:block;margin-top:6px}

/* karta realizacji */
.sheet{border:2px solid var(--ink);background:var(--paper-2);display:grid;grid-template-columns:1.05fr .95fr}
.sheet .head{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 26px;border-bottom:2px solid var(--ink);background:var(--paper);font-family:var(--mono);font-size:13px;letter-spacing:.02em;text-transform:uppercase;color:var(--txt-dim)}
.sheet .head b{color:var(--ink);font-weight:500}
.sheet .body{padding:34px 30px}
.sheet .body h3{font-size:26px;margin-bottom:10px}
.sheet .body .problem{color:var(--txt-dim);font-size:16px;margin-bottom:22px}
.sheet dl{display:grid;grid-template-columns:auto 1fr;gap:0 22px;font-size:15.5px}
.sheet dt{font-family:var(--mono);font-size:13px;letter-spacing:.03em;text-transform:uppercase;color:var(--txt-dim);padding:11px 0;border-bottom:1px solid var(--line);white-space:nowrap}
.sheet dd{padding:11px 0;border-bottom:1px solid var(--line);font-weight:500}
.sheet dd .mono{color:var(--txt-dim)}
.sheet .fig{border-left:1px solid var(--line);padding:30px;display:grid;grid-template-rows:1fr auto;gap:18px;background:var(--paper)}
.sheet .fig svg{width:100%;height:auto}
.sheet .fig .capt{font-family:var(--mono);font-size:13px;color:var(--txt-dim);letter-spacing:.02em}
.sheet .quote-line{grid-column:1/-1;border-top:2px solid var(--ink);padding:22px 30px;font-size:17px;font-style:italic;color:var(--ink);display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.sheet .quote-line small{font-style:normal;font-family:var(--mono);font-size:13.5px;color:var(--txt-dim)}

/* kryteria + pojemność */
.criteria ul{list-style:none;margin:26px 0;border-top:2px solid var(--ink)}
.criteria li{padding:16px 0 16px 40px;position:relative;font-size:17px;border-bottom:1px solid var(--line)}
.criteria li::before{content:"";position:absolute;left:4px;top:24px;width:14px;height:14px;background:var(--volt)}
.criteria .must{font-weight:900;letter-spacing:-.03em;font-size:22px;margin-top:26px;font-variation-settings:'wdth' 106}
.capacity{border:2px solid var(--ink);background:var(--paper-2);padding:24px 26px}
.capacity .row{display:flex;justify-content:space-between;align-items:baseline;font-family:var(--mono);font-size:13px;letter-spacing:.02em;text-transform:uppercase;color:var(--txt-dim);margin-bottom:14px}
.capacity .row b{font-family:var(--font);font-size:34px;font-weight:900;letter-spacing:-.04em;color:var(--ink);text-transform:none;letter-spacing:-.04em}
.capacity .bars{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
.capacity .bars i{height:14px;background:var(--line)}
.capacity .bars i.on{background:var(--volt)}
.capacity .foot{font-size:14.5px;color:var(--txt-dim);margin-top:14px;line-height:1.5}

/* FAQ */
.faq{border-top:2px solid var(--ink)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{font-weight:700;letter-spacing:-.015em;font-size:18.5px;padding:22px 0;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:24px;align-items:center;transition:color .15s}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--volt-ink)}
.faq summary::after{content:"+";font-family:var(--mono);font-weight:400;color:var(--volt-ink);font-size:26px;line-height:1;transition:transform .2s var(--ease);flex:none}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 24px;color:var(--txt-dim);max-width:720px;font-size:16.5px}
.faq details p+p{margin-top:-10px}

/* formularz */
.form-card{background:var(--paper-2);border:2px solid var(--ink);padding:40px;position:relative}
.form-card .form-head{display:flex;justify-content:space-between;align-items:center;font-family:var(--mono);font-size:13px;letter-spacing:.05em;text-transform:uppercase;color:var(--txt-dim);margin-bottom:26px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:7px;position:relative;min-width:0}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--txt-dim);letter-spacing:.02em}
.field input,.field select,.field textarea{min-width:0;width:100%;background:var(--paper);border:0;border-bottom:2px solid var(--ink);padding:13px 12px;font-size:16px;color:var(--txt);font-family:inherit;transition:border-color .15s,background .15s;appearance:none;-webkit-appearance:none}
.field select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23141414' stroke-width='2'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:34px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--volt);background:var(--paper-2)}
.field input:not(:placeholder-shown):valid{border-color:var(--ok)}
.field input:not(:placeholder-shown):valid+.ok{opacity:1}
.field .ok{position:absolute;right:10px;bottom:14px;width:14px;height:14px;opacity:0;transition:opacity .2s;color:var(--ok)}
.field input:not(:placeholder-shown):invalid{border-color:var(--volt-ink)}
.form-card .btn{width:100%;justify-content:space-between;margin-top:26px;font-size:17px;padding:19px 26px}
.thanks{display:none}
.thanks.on{display:block;animation:rise .45s var(--ease)}
.thanks .check{width:56px;height:56px;background:var(--ok);color:#fff;display:grid;place-items:center;font-size:26px;margin-bottom:22px}
.thanks h3{font-size:26px;margin-bottom:12px}
.thanks p{color:var(--txt-dim)}
.thanks p+p{margin-top:12px}
.thanks .next{margin-top:22px;border-top:2px solid var(--ink);padding-top:16px;font-family:var(--mono);font-size:14px;color:var(--txt-dim)}
.thanks .next b{color:var(--ink);font-weight:600;display:block;margin-bottom:6px;letter-spacing:.03em;text-transform:uppercase;font-size:12.5px}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* CTA band (papier, ciężka kreska) */
.band{border-top:2px solid var(--ink);border-bottom:2px solid var(--ink);padding:56px 0;background:var(--paper-2)}
.band .wrap{display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.band h2{font-size:clamp(26px,3.2vw,38px);max-width:640px}
.band p{color:var(--txt-dim);margin-top:8px}

/* stopka */
footer{background:var(--ink);color:#B9B5AB;padding:56px 0 36px;font-size:14px}
footer .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:36px;padding-bottom:36px;border-bottom:1px solid rgba(244,242,237,.15)}
footer .logo{color:var(--paper)}
footer .logo .mark polygon:first-child{fill:var(--paper)}
footer h4{color:var(--paper);font-family:var(--mono);font-size:12.5px;letter-spacing:.03em;text-transform:uppercase;font-weight:600;margin-bottom:14px}
footer ul{list-style:none}
footer li{margin:7px 0}
footer a{color:#B9B5AB;text-decoration:none;transition:color .15s}
footer a:hover{color:var(--volt)}
footer .legal{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-top:22px;font-family:var(--mono);font-size:13px;color:#A9A59B}
footer .legal b{color:var(--paper);font-weight:500}
footer p{color:#B9B5AB;margin-top:16px;max-width:38ch;font-size:14px}

/* katalog */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 40px}
.chip{font-family:var(--mono);font-size:14px;letter-spacing:.02em;padding:9px 14px;border:1.5px solid var(--ink);background:transparent;cursor:pointer;transition:background .15s,color .15s}
.chip:hover{background:var(--paper-3)}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.cat-head{display:flex;justify-content:space-between;align-items:end;gap:20px;border-top:2px solid var(--ink);padding-top:22px;margin:56px 0 28px}
.cat-head:first-of-type{margin-top:0}
.cat-head h2{font-size:clamp(24px,3vw,34px)}
.cat-head h2 .fx{white-space:nowrap}
.cat-head .cnt{font-family:var(--mono);font-size:13px;color:var(--txt-dim);letter-spacing:.02em;text-transform:uppercase}
.products{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.product{border:2px solid var(--ink);background:var(--paper-2);display:grid;grid-template-columns:.42fr .58fr;transition:border-color .2s var(--ease)}
.product:hover{border-color:var(--volt)}
.product .fig{background:var(--paper);border-right:1px solid var(--line);display:grid;place-items:center;padding:52px 20px 24px;position:relative;min-height:300px}
.product .fig svg{width:100%;max-height:320px;height:auto}
.product .fig .avail{position:absolute;left:14px;top:14px}
.product .info{padding:24px 24px 22px;display:flex;flex-direction:column}
.product .code{font-family:var(--code);font-size:13.5px;letter-spacing:.03em;color:var(--volt-ink);text-transform:uppercase;margin-bottom:8px;font-weight:600}
.product h3{font-size:22px;margin-bottom:6px}
.product .use{font-size:15px;color:var(--txt-dim);margin-bottom:16px}
.spec{width:100%;border-collapse:collapse;font-size:14.5px;margin-top:auto}
.spec th,.spec td{padding:8px 0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.spec th{font-family:var(--mono);font-weight:400;color:var(--txt-dim);font-size:13.5px;letter-spacing:.02em;width:40%}
.spec td{font-family:var(--font);font-weight:500;color:var(--ink)}
.product .foot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:16px;padding-top:14px;border-top:2px solid var(--ink);flex-wrap:wrap}
.product .price{font-family:var(--mono);font-size:13.5px;color:var(--txt-dim);line-height:1.4}
.product .price b{display:block;color:var(--ink);font-weight:500;font-size:14.5px;white-space:nowrap}
.product .foot a{font-family:var(--mono);font-size:14px;color:var(--ink);text-decoration:none;border-bottom:2px solid var(--volt);white-space:nowrap}
.product .foot a:hover{color:var(--volt-ink)}
.product.hide{display:none}
.access-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.access-list .a{border-top:2px solid var(--ink);padding-top:16px;font-size:15px;color:var(--txt-dim)}
.access-list .a b{display:block;color:var(--ink);font-size:17px;margin-bottom:6px}
.access-list .a .mono{font-size:13.5px;color:var(--txt-dim);display:block;margin-top:8px}

/* panel */
.login{min-height:calc(100vh - 0px);display:grid;grid-template-columns:.9fr 1.1fr}
.login .side{background:var(--ink);color:var(--paper);padding:40px 48px;display:flex;flex-direction:column;justify-content:space-between}
.login .side .logo{color:var(--paper)}
.login .side .logo .mark polygon:first-child{fill:var(--paper)}
.login .side h1{font-size:clamp(34px,4vw,54px);margin:28px 0 20px}
.login .side p{color:#B9B5AB;font-size:16.5px}
.login .side ul{list-style:none;margin-top:28px;border-top:1px solid rgba(244,242,237,.2)}
.login .side li{padding:12px 0;border-bottom:1px solid rgba(244,242,237,.12);font-family:var(--mono);font-size:14.5px;color:#DDD9CF;display:flex;gap:14px}
.login .side li::before{content:"■";color:var(--volt);font-size:10px;line-height:2.2}
.login .side .foot{font-family:var(--mono);font-size:12px;color:#8B8983;margin-top:40px}
.login .form{display:grid;place-items:center;padding:48px 28px}
.login .form-card{width:100%;max-width:440px}
.login .form-card .btn{margin-top:18px}
.login .hint{font-family:var(--mono);font-size:13.5px;color:var(--txt-dim);margin-top:18px;border-top:1px solid var(--line);padding-top:14px}
.login .hint b{color:var(--volt-ink);font-weight:500}
.login .err{color:var(--volt-ink);font-family:var(--mono);font-size:13px;margin-top:10px;display:none}
.login .err.on{display:block}

.dash{display:none}
.dash.on{display:block}
.dash-nav{background:var(--ink);color:var(--paper)}
.dash-nav .wrap{display:flex;align-items:center;gap:28px;padding-top:14px;padding-bottom:14px}
.dash-nav .logo{color:var(--paper)}
.dash-nav .logo .mark polygon:first-child{fill:var(--paper)}
.dash-nav ul{display:flex;gap:24px;list-style:none;margin-left:24px}
.dash-nav ul a{color:#B9B5AB;text-decoration:none;font-size:14.5px;font-weight:600;transition:color .15s}
.dash-nav ul a:hover{color:var(--volt)}
.dash-nav .user{margin-left:auto;font-family:var(--mono);font-size:13.5px;color:#B9B5AB;display:flex;gap:16px;align-items:center}
.dash-nav .user b{color:var(--paper);font-weight:500}
.dash-nav .user button{background:transparent;border:1px solid #5B5A56;color:var(--paper);font-family:var(--mono);font-size:12px;padding:6px 10px;cursor:pointer}
.dash-nav .user button:hover{border-color:var(--volt);color:var(--volt)}
.dash-head{padding:44px 0 28px;display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;border-bottom:2px solid var(--ink)}
.dash-head h1{font-size:clamp(30px,3.6vw,44px)}
.dash-head .status{font-family:var(--mono);font-size:13px;color:var(--txt-dim);letter-spacing:.03em;text-transform:uppercase;text-align:right;line-height:1.7}
.dash-head .status b{color:var(--ink);font-weight:500}
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:32px 0}
.tile{border:2px solid var(--ink);background:var(--paper-2);padding:22px;text-decoration:none;color:inherit;transition:border-color .2s var(--ease),background .2s var(--ease)}
.tile:hover{border-color:var(--volt);background:var(--paper)}
.tile .k{font-family:var(--mono);font-size:12.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--volt-ink);margin-bottom:12px}
.tile b{display:block;font-size:19px;letter-spacing:-.02em;margin-bottom:6px}
.tile span{font-size:14px;color:var(--txt-dim)}
.dash section{padding:56px 0}
.dash h2{font-size:clamp(24px,3vw,34px);margin-bottom:22px}
.price-table{width:100%;border-collapse:collapse;border:2px solid var(--ink);background:var(--paper-2);font-size:15px}
.price-table th,.price-table td{padding:14px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.price-table thead th{font-family:var(--mono);font-size:13px;letter-spacing:.05em;text-transform:uppercase;font-weight:600;color:var(--txt-dim);background:var(--paper);border-bottom:2px solid var(--ink)}
.price-table td.num,.price-table th.num{text-align:right;font-family:var(--mono)}
.price-table td.num b{font-weight:500;color:var(--ink)}
.price-table td .mono{color:var(--txt-dim);font-size:13.5px}
.price-table tr:hover td{background:var(--paper)}
.files{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.file{border:1px solid var(--ink);background:var(--paper-2);padding:20px 22px;display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;text-decoration:none;color:inherit;transition:background .15s}
.file:hover{background:var(--paper)}
.file .ext{font-family:var(--mono);font-size:12px;letter-spacing:.02em;background:var(--ink);color:var(--paper);padding:6px 8px}
.file b{display:block;font-size:15.5px;letter-spacing:-.01em}
.file span{font-size:13.5px;color:var(--txt-dim);font-family:var(--mono)}
.file .dl{font-family:var(--mono);font-size:13px;color:var(--volt-ink)}

/* podgląd raportu (C&I) */
.report{border:2px solid var(--ink);background:var(--paper-2)}
.report .rh{display:flex;justify-content:space-between;align-items:center;padding:16px 26px;border-bottom:2px solid var(--ink);background:var(--paper);font-family:var(--mono);font-size:13px;letter-spacing:.02em;text-transform:uppercase;color:var(--txt-dim)}
.report .rh b{color:var(--ink);font-weight:500}
.report table{width:100%;border-collapse:collapse}
.report th,.report td{padding:16px 26px;border-bottom:1px solid var(--line);text-align:left;font-size:15.5px;vertical-align:top}
.report tbody th{font-weight:600;width:40%}
.report tbody th small{display:block;font-weight:400;color:var(--txt-dim);font-size:13px;margin-top:3px}
.report td{font-family:var(--font);font-weight:500;color:var(--txt-dim)}
.report td.now{color:var(--volt-ink)}
.report td.after{color:var(--ink)}
.report thead th{font-family:var(--mono);font-size:13px;letter-spacing:.05em;text-transform:uppercase;font-weight:600;color:var(--txt-dim);background:var(--paper)}
.report tfoot th,.report tfoot td{border-top:2px solid var(--ink);border-bottom:0;font-weight:900;font-size:19px;letter-spacing:-.02em;font-family:var(--font)}
.report tfoot td.after{color:var(--volt-ink)}
.leaks{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:2px solid var(--ink)}
.leaks .cell{background:var(--paper-2);padding:30px 26px}
.leaks .cell .n{font-family:var(--mono);font-size:13px;letter-spacing:.05em;color:var(--volt-ink);margin-bottom:16px}
.leaks h3{font-size:19px;margin-bottom:8px}
.leaks p{font-size:15.5px;color:var(--txt-dim)}

/* siatki ogólne */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.card{background:var(--paper-2);border:1px solid var(--ink);padding:32px 30px;position:relative}
.card .tag{margin-bottom:18px}
.card h3{margin-bottom:10px}
.card p{font-size:16px;color:var(--txt-dim)}
.card ul{list-style:none;margin-top:18px}
.card li{padding:9px 0;border-bottom:1px solid var(--line);font-size:15px;display:flex;justify-content:space-between;gap:14px}
.card li span:last-child{font-family:var(--font);font-weight:600;color:var(--txt);white-space:nowrap;font-size:14px}
.card li:last-child{border-bottom:0}
.card.no{background:var(--paper-3)}
.card.no::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--ink)}
.card.yes::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--volt)}
.card .fig{margin:-6px 0 20px}
.card .fig svg{height:120px;width:auto}
.included{display:grid;grid-template-columns:auto 1fr;gap:40px;align-items:center;margin-top:40px;border:2px solid var(--ink);background:var(--paper-2);padding:34px 36px}
.included .zero{font-weight:900;font-size:clamp(56px,7vw,92px);letter-spacing:-.06em;line-height:.9;color:var(--volt);font-variation-settings:'wdth' 112}
.included .zero small{display:block;font-family:var(--mono);font-size:13px;letter-spacing:.05em;text-transform:uppercase;color:var(--txt-dim);margin-top:10px;font-weight:400}
.included p{font-size:16.5px;color:var(--txt-dim);max-width:none}
.included p b{color:var(--ink)}
.contact{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact .c{border-top:2px solid var(--ink);padding-top:18px;font-size:15.5px;color:var(--txt-dim)}
.contact .c b{display:block;color:var(--ink);font-size:18px;letter-spacing:-.02em;margin-bottom:4px}
.contact .c .tel{font-family:var(--mono);color:var(--ink);display:block;margin-top:10px;font-size:15px}
.contact .c .tel+.tel{margin-top:4px}

/* schemat / rysunki */
.diagram{border:2px solid var(--ink);background:var(--paper-2);padding:28px 24px 18px;overflow-x:auto}
.diagram svg{width:100%;height:auto}
.diagram .capt{display:flex;justify-content:space-between;font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;text-transform:uppercase;color:var(--txt-dim);margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
.diagram .capt b{color:var(--ink);font-weight:500}

/* fikcyjne dane: niewidoczne domyślnie; ?fx=1 podświetla */
.fx{}
body.fx-on .fx,body.fx-on [data-fx]{background:rgba(228,88,11,.18);outline:1px dashed var(--volt-ink);outline-offset:1px}
body.fx-on::before{content:"PODGLĄD FIKCYJNYCH DANYCH — podświetlone wartości do podmiany (FAKE-DATA.md)";position:fixed;left:0;right:0;bottom:0;z-index:99;background:var(--ink);color:var(--volt);font-family:var(--mono);font-size:12px;letter-spacing:.03em;padding:10px 16px;text-align:center}

/* zdjęcia (placeholdery CC — podpis z atrybucją) */
.photo{margin:0;border:2px solid var(--ink);background:var(--ink);overflow:hidden;position:relative}
.photo img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s var(--ease)}
.photo:hover img{transform:none}
.photo figcaption{position:absolute;left:0;right:0;bottom:0;background:rgba(20,20,20,.82);color:var(--paper);font-family:var(--mono);font-size:12px;letter-spacing:.02em;padding:9px 14px;display:flex;justify-content:space-between;gap:12px}
.photo figcaption span:last-child{color:#B9B5AB}
.photo.band{aspect-ratio:16/6;margin:0 0 48px;padding:0}  /* padding:0 — .band (sekcja) dokłada 56px, przez co zdjęcie było letterboxowane */
.photo.tall{aspect-ratio:3/4}
.photo.wide{aspect-ratio:16/9}
.card .fig.ph{margin:-32px -30px 20px;height:180px;border-bottom:1px solid var(--line)}
.card .fig.ph img{width:100%;height:100%;object-fit:cover}
.card{transition:border-color .2s var(--ease)}
.card:hover{border-color:var(--volt)}
.product .fig.ph{padding:0;min-height:0}
.product .fig.ph img{width:100%;height:100%;object-fit:cover;max-height:none}
.product .fig.ph .avail{z-index:1}
.sheet .fig.ph{padding:0;display:block}
.sheet .fig.ph img{width:100%;height:100%;object-fit:cover}
.sheet .fig.ph .capt{position:absolute;left:0;right:0;bottom:0;background:rgba(20,20,20,.82);color:var(--paper);padding:9px 14px}
.sheet .fig.ph{position:relative;min-height:320px}
@media (max-width:860px){.photo.band{aspect-ratio:16/9}.card .fig.ph{margin:-24px -22px 18px}}

/* fokus i interakcje */
:focus-visible{outline:3px solid var(--volt);outline-offset:3px}
.btn:focus-visible,.chip:focus-visible{outline-offset:2px}
.field input:focus-visible,.field select:focus-visible{outline:none}
.ledger tbody tr,.price-table tbody tr,.matrix tbody tr,.report tbody tr{transition:background .15s var(--ease)}
.ledger tbody tr:hover th,.ledger tbody tr:hover td{background:var(--paper)}
.ledger tbody tr:hover td.col-b{background:#F6DFCF}
.nav ul a{position:relative}
.proofbar b{transition:opacity .3s var(--ease)}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--paper);padding:10px 14px;z-index:100;font-family:var(--mono);font-size:13px}
.skip:focus{left:12px}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{transition:none!important;animation:none!important}
}

/* responsywność */
@media (max-width:1040px){
  .proofbar{grid-template-columns:repeat(2,1fr)}
  .proofbar div{padding-left:0!important;border-right:0;border-bottom:1px solid var(--line)}
  .products{grid-template-columns:1fr}
  .tiles{grid-template-columns:repeat(2,1fr)}
  .files{grid-template-columns:1fr 1fr}
  .leaks{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  body{font-size:16px}
  section{padding:72px 0}
  .wrap{padding:0 20px}
  .nav ul{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:2px solid var(--ink);flex-direction:column;gap:0;margin:0;padding:8px 0;z-index:20}
  .nav.open ul{display:flex}
  .nav ul li a{display:block;padding:14px 20px;border-bottom:1px solid var(--line)}
  .nav-toggle{display:block;margin-left:auto}
  .nav > .btn{display:none}
  .nav ul li.cta{display:block;padding:14px 20px 12px}
  .nav ul li.cta a.btn{display:inline-flex;width:100%;justify-content:center;padding:15px 20px;font-size:16px}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding-top:44px}
  .video-slot{aspect-ratio:4/3;max-height:none}
  .sec-split,.who,.anchor,.included,.quote{grid-template-columns:1fr}
  .sec-split .sticky{position:static}
  .quote .bar{width:60px;height:6px}
  .timeline,.stack,.guar,.grid3,.grid2,.people,.contact,.access-list,.leaks,.tiles,.files{grid-template-columns:1fr}
  .timeline .step{border-right:0;border-bottom:1px solid var(--line);padding:26px 0}
  .timeline .step+.step{padding-left:0}
  .sheet{grid-template-columns:1fr}
  .sheet .fig{border-left:0;border-top:1px solid var(--line)}
  .product{grid-template-columns:1fr}
  .product .fig{border-right:0;border-bottom:1px solid var(--line);min-height:200px}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:26px 22px}
  .btn{width:100%;justify-content:space-between}
  .nav .btn{width:auto}
  .cta-row .btn{width:100%}
  .ledger td,.ledger th{padding:12px 14px;font-size:14px}
  .matrix th,.matrix td{padding:11px 12px;font-size:13.5px}
  .matrix td .lbl{display:none}
  .ledger,.matrix,.report{overflow-x:auto}
  .anchor .total{text-align:left}
  .anchor .total .cond{margin-left:0}
  .login{grid-template-columns:1fr;min-height:0}
  .login .side{padding:28px 22px}
  .login .form{padding:28px 20px}
  .dash-nav ul{display:none}
  .diagram svg{min-width:680px}
  .dash-head .status{text-align:left}
  footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .form-grid{grid-template-columns:1fr}
  footer .cols{grid-template-columns:1fr}
  .proofbar{grid-template-columns:1fr}
  .capacity .bars{grid-template-columns:repeat(5,1fr)}
}