:root{
  --paper:#F2F6F8; --surface:#FFFFFF; --surface2:#E3EEF2; --line:#C9DAE1;
  --ink:#152E3B; --ink2:#4A6472; --ink3:#7A909B;
  --deep:#0B2F45; --deep2:#0F3F5C; --teal:#0F6E82; --teal2:#1A8DA3; --aqua:#BFE3EA;
  --brass:#B4732A; --brass-bg:#FBF1E4;
  --focus:#1A8DA3;
  --r:10px; --r2:16px;
  --shadow:0 1px 2px rgba(11,47,69,.08), 0 8px 24px -12px rgba(11,47,69,.18);
  --sans:"Instrument Sans", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  --serif:"Instrument Serif", Georgia, "Times New Roman", serif;
  --fs:16px;
  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"]){
  --paper:#071D2B; --surface:#0E2C3D; --surface2:#123649; --line:#23485C;
  --ink:#DCE9EE; --ink2:#A9C0CA; --ink3:#7E97A3;
  --deep:#061826; --deep2:#0B2F45; --teal:#45B2C7; --teal2:#6CC8DA; --aqua:#174A5E;
  --brass:#E0A35B; --brass-bg:#2B2416; color-scheme:dark;
}}
:root[data-theme="dark"]{
  --paper:#071D2B; --surface:#0E2C3D; --surface2:#123649; --line:#23485C;
  --ink:#DCE9EE; --ink2:#A9C0CA; --ink3:#7E97A3;
  --deep:#061826; --deep2:#0B2F45; --teal:#45B2C7; --teal2:#6CC8DA; --aqua:#174A5E;
  --brass:#E0A35B; --brass-bg:#2B2416; color-scheme:dark;
}
:root[data-contrast="high"]{ --ink:#000; --ink2:#111; --ink3:#222; --line:#000; --paper:#fff; --surface:#fff; --surface2:#f0f0f0; --teal:#004c5c; --brass:#6a3d00; }
:root[data-theme="dark"][data-contrast="high"]{ --ink:#fff; --ink2:#eee; --ink3:#ddd; --paper:#000; --surface:#000; --surface2:#111; --line:#fff; --teal:#8fe3f5; --brass:#ffcf8a; }
:root[data-links="underline"] a{ text-decoration:underline }
:root[data-fs="l"]{ --fs:18px } :root[data-fs="xl"]{ --fs:20px }
html{ scroll-padding-top:calc(72px + env(safe-area-inset-top,0px)); }
*,*::before,*::after{ box-sizing:inherit }
body{ margin:0; background:var(--paper); color:var(--ink); font-family:var(--sans); font-size:var(--fs); line-height:1.55; -webkit-font-smoothing:antialiased }
body::before{ content:""; position:fixed; inset:0 0 auto; height:env(safe-area-inset-top,0px); background:var(--paper); z-index:30 }
a{ color:var(--teal); text-decoration:none } a:hover{ text-decoration:underline }
:focus-visible{ outline:3px solid var(--focus); outline-offset:2px; border-radius:4px }
img,svg{ max-width:100% }
button{ font:inherit; color:inherit }
h1,h2,h3{ font-family:var(--serif); font-weight:400; line-height:1.1; margin:0 0 .4em; letter-spacing:-.005em }
h1{ font-size:clamp(2.2rem,4.5vw,3.6rem) } h2{ font-size:clamp(1.6rem,2.8vw,2.2rem) } h3{ font-size:1.35rem }
p{ margin:0 0 1em } .lead{ font-size:1.15em; color:var(--ink2); max-width:62ch }
.wrap{ max-width:1200px; margin:0 auto; padding:0 clamp(16px,3vw,32px) }
.narrow{ max-width:860px }
.skip{ position:absolute; left:-999px; top:8px; background:var(--deep); color:#fff; padding:8px 12px; z-index:100 } .skip:focus{ left:8px }
.sr{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap }

/* pasek wersji testowej */
.testbar{ background:#F7E6A8; color:#3b2f00; font-size:.9em; padding:8px 0 }
.testbar .wrap{ display:flex; gap:12px; align-items:center; justify-content:space-between; flex-wrap:wrap }
.testbar button{ background:transparent; border:1px solid #7a6418; border-radius:6px; padding:3px 10px; cursor:pointer }

/* nagłówek */
header.site{ position:sticky; top:env(safe-area-inset-top,0px); z-index:20; background:color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter:blur(10px); border-bottom:1px solid var(--line) }
.bar{ display:flex; align-items:center; gap:18px; min-height:68px }
.logo{ display:flex; align-items:center; gap:10px; color:var(--ink); font-family:var(--serif); font-size:1.5rem; white-space:nowrap }
.logo:hover{ text-decoration:none } .logo svg{ width:34px; height:34px }
.logo small{ font-family:var(--sans); font-size:.72rem; color:var(--ink3); display:block; line-height:1; margin-top:2px }
nav.main{ display:flex; gap:4px; margin-left:auto }
nav.main a{ color:var(--ink); padding:8px 11px; border-radius:8px; font-weight:500 }
nav.main a:hover,nav.main a[aria-current]{ background:var(--surface2); text-decoration:none }
.tools{ display:flex; gap:6px; margin-left:4px }
.ibtn{ background:var(--surface); border:1px solid var(--line); border-radius:8px; height:38px; min-width:38px; padding:0 10px; display:inline-flex; align-items:center; gap:8px; cursor:pointer; color:var(--ink) }
.ibtn:hover{ border-color:var(--teal) } .ibtn kbd{ font:600 .7rem var(--sans); color:var(--ink3); border:1px solid var(--line); border-radius:4px; padding:1px 5px }
.burger{ display:none }
@media (max-width:960px){
  nav.main.old{ display:none; position:absolute; left:0; right:0; top:100%; background:var(--surface); border-bottom:1px solid var(--line); flex-direction:column; padding:10px; box-shadow:var(--shadow) }
  nav.main.open{ display:flex } .burger{ display:inline-flex } .ibtn .lbl, .ibtn kbd{ display:none }
}

/* hero */
.hero{ background:var(--deep); color:#E6F1F5; position:relative; overflow:hidden }
.hero .wrap{ display:grid; grid-template-columns:1.15fr .85fr; gap:clamp(24px,5vw,72px); padding-top:clamp(40px,7vw,88px); padding-bottom:clamp(40px,7vw,88px); align-items:center }
.hero h1{ color:#fff; font-size:clamp(2.6rem,5.6vw,4.6rem); max-width:14ch }
.hero h1 em{ font-style:italic; color:var(--aqua) }
.hero p{ color:#B9D2DC; max-width:52ch; font-size:1.08em }
.hero .acts{ display:flex; gap:10px; flex-wrap:wrap; margin-top:20px }
.btn{ display:inline-flex; align-items:center; gap:8px; padding:11px 18px; border-radius:999px; background:var(--teal); color:#fff; font-weight:600; border:0; cursor:pointer }
.btn:hover{ background:var(--teal2); text-decoration:none; color:#fff }
.btn.ghost{ background:transparent; border:1px solid rgba(255,255,255,.35); color:#fff }
.btn.ghost:hover{ background:rgba(255,255,255,.08) }
.btn.light{ background:var(--surface); color:var(--ink); border:1px solid var(--line) } .btn.light:hover{ background:var(--surface2); color:var(--ink) }
.btn.sm{ padding:7px 13px; font-size:.92em }
/* kolumna ciśnienia */
.column{ background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.14); border-radius:var(--r2); padding:20px; display:grid; grid-template-columns:120px 1fr; gap:18px; align-items:stretch }
.column .tank{ position:relative; height:300px; border-radius:8px 8px 14px 14px; background:linear-gradient(#0A2638,#07202E); border:1px solid rgba(255,255,255,.18); overflow:hidden }
.column .water{ position:absolute; left:0; right:0; bottom:0; height:40%; background:linear-gradient(180deg,#2BA6BF,#0E6E86 60%,#0B5569); transition:height .25s }
.column .water::before{ content:""; position:absolute; left:-10%; right:-10%; top:-6px; height:12px; background:#5FD0E6; border-radius:50%; opacity:.9 }
.column .ticks{ position:absolute; inset:0; pointer-events:none }
.column .ticks span{ position:absolute; right:6px; font-size:.68rem; color:#9DBAC7; border-top:1px solid rgba(255,255,255,.25); padding-top:1px; width:34px; text-align:right }
.column .marker{ position:absolute; left:0; right:0; border-top:2px dashed #F3C97A; transition:top .25s }
.column .marker b{ position:absolute; left:6px; top:-20px; font:600 .72rem var(--sans); color:#F3C97A; white-space:nowrap }
.column .ctrl label{ display:block; font-size:.85em; color:#B9D2DC; margin:8px 0 4px }
.column input[type=range]{ width:100%; accent-color:#5FD0E6 }
.column select{ width:100%; background:#0B2F45; color:#fff; border:1px solid rgba(255,255,255,.3); border-radius:8px; padding:8px }
.readout{ margin-top:14px; display:grid; grid-template-columns:1fr 1fr; gap:8px }
.readout div{ background:rgba(255,255,255,.06); border-radius:10px; padding:10px 12px }
.readout small{ display:block; color:#9DBAC7; font-size:.75em }
.readout strong{ font-family:var(--serif); font-size:1.5rem; font-weight:400; color:#fff }
.column .eq{ font-family:var(--serif); font-style:italic; font-size:1.35rem; color:#fff; margin:6px 0 2px }
.column .eq span{ font-style:normal; font-family:var(--sans); font-size:.8rem; color:#9DBAC7; margin-left:8px }
@media (max-width:860px){ .hero .wrap{ grid-template-columns:1fr } .column{ grid-template-columns:90px 1fr } .column .tank{ height:240px } .readout strong{ font-size:1.2rem } .column .eq span{ display:none } }

/* linia wody */
.waterline{ display:block; width:100%; height:38px; background:var(--deep) }

/* sekcje */
section.block{ padding:clamp(36px,6vw,72px) 0 }
section.block + section.block{ padding-top:0 }
.sechead{ display:flex; align-items:baseline; justify-content:space-between; gap:16px; flex-wrap:wrap; margin-bottom:22px }
.sechead p{ color:var(--ink2); margin:0; max-width:60ch }
.sechead a.more{ font-weight:600; white-space:nowrap }

/* karty */
.grid{ display:grid; gap:16px } .g2{ grid-template-columns:repeat(2,1fr) } .g3{ grid-template-columns:repeat(3,1fr) } .g4{ grid-template-columns:repeat(4,1fr) }
@media (max-width:980px){ .g3,.g4{ grid-template-columns:repeat(2,1fr) } } @media (max-width:600px){ .g2,.g3,.g4{ grid-template-columns:1fr } }
.card{ background:var(--surface); border:1px solid var(--line); border-radius:var(--r2); padding:20px; display:flex; flex-direction:column; gap:8px; color:var(--ink); position:relative }
.card:hover{ border-color:var(--teal) } a.card:hover{ text-decoration:none }
.card h3{ margin:0 } .card p{ margin:0; color:var(--ink2); font-size:.95em }
.card .meta{ color:var(--ink3); font-size:.82em; margin-top:auto; padding-top:6px }
.card .cnt{ font-family:var(--serif); font-size:2rem; color:var(--teal); line-height:1 }
.hub{ display:grid; grid-template-columns:52px 1fr; gap:14px }
.hub .ico{ width:52px; height:52px; border-radius:12px; background:var(--surface2); display:grid; place-items:center; color:var(--teal) }
.hub .ico svg{ width:28px; height:28px }
.doc{ display:grid; grid-template-columns:72px 1fr; gap:14px; align-items:start }
.doc .thumb{ width:72px; height:72px; border-radius:10px; background:var(--surface2); overflow:hidden; display:grid; place-items:center; color:var(--teal) }
.doc .thumb svg{ width:40px; height:40px }
.doc h3{ font-family:var(--sans); font-size:1.02rem; font-weight:600; line-height:1.3 }
.chip{ display:inline-block; background:var(--surface2); color:var(--ink2); border-radius:999px; padding:3px 10px; font-size:.8em; margin:0 6px 6px 0 }
a.chip:hover{ background:var(--aqua); text-decoration:none; color:var(--ink) }
.chip.on{ background:var(--deep); color:#fff }

/* ścieżki startowe */
.paths{ display:grid; grid-template-columns:repeat(4,1fr); gap:14px }
@media (max-width:980px){ .paths{ grid-template-columns:repeat(2,1fr) } } @media (max-width:560px){ .paths{ grid-template-columns:1fr } }
.path{ background:var(--surface); border:1px solid var(--line); border-radius:var(--r2); padding:18px }
.path h3{ font-family:var(--sans); font-weight:600; font-size:1.05rem; margin:8px 0 6px } .path p{ color:var(--ink2); font-size:.92em; margin:0 0 10px }
.path ol{ margin:0; padding-left:18px; font-size:.92em } .path li{ margin:4px 0 }
.path .who{ color:var(--teal); font-size:.85em }

/* wzory */
.formula{ background:var(--brass-bg); border:1px solid color-mix(in srgb,var(--brass) 35%, transparent); border-radius:var(--r2); padding:20px 22px }
.formula .math{ font-family:var(--serif); font-style:italic; font-size:2rem; color:var(--brass); margin:4px 0 10px; letter-spacing:.01em }
.formula .math sub{ font-size:.55em } .formula .vars{ font-size:.9em; color:var(--ink2); margin:0; padding-left:18px } .formula .vars li{ margin:2px 0 }
.formula .vars i{ font-family:var(--serif); font-size:1.1em; color:var(--ink) }
.formula h3{ margin:0 }
.callout{ border-left:4px solid var(--brass); background:var(--brass-bg); padding:14px 18px; border-radius:0 var(--r) var(--r) 0; margin:22px 0 }
.callout.teal{ border-color:var(--teal); background:var(--surface2) }
.callout p:last-child{ margin:0 }

/* kalkulatory */
.calc{ background:var(--surface); border:1px solid var(--line); border-radius:var(--r2); padding:20px }
.calc .f{ display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:12px; margin:12px 0 }
.calc label{ display:block; font-size:.85em; color:var(--ink2); margin-bottom:4px }
.calc input,.calc select{ width:100%; padding:9px 10px; border:1px solid var(--line); border-radius:8px; background:var(--paper); color:var(--ink); font:inherit }
.calc .out{ background:var(--brass-bg); border-radius:10px; padding:12px 16px; font-family:var(--serif); font-size:1.5rem; color:var(--brass) }
.calc .out small{ display:block; font:0.8rem var(--sans); color:var(--ink2); margin-top:4px }

/* listy, filtry */
.filters{ display:flex; gap:10px; flex-wrap:wrap; align-items:center; margin:18px 0 }
.filters select,.filters input{ padding:9px 12px; border:1px solid var(--line); border-radius:8px; background:var(--surface); color:var(--ink); font:inherit }
.az{ display:flex; flex-wrap:wrap; gap:4px; margin:10px 0 18px }
.az a{ min-width:30px; text-align:center; padding:4px 6px; border-radius:6px; background:var(--surface); border:1px solid var(--line); color:var(--ink); font-size:.85em }
.az a.on{ background:var(--deep); color:#fff; border-color:var(--deep) } .az a:hover{ text-decoration:none; border-color:var(--teal) }
.list{ list-style:none; margin:0; padding:0; border-top:1px solid var(--line) }
.list li{ border-bottom:1px solid var(--line) }
.list a{ display:grid; grid-template-columns:1fr auto; gap:14px; padding:12px 4px; color:var(--ink); align-items:center }
.list a:hover{ background:var(--surface); text-decoration:none } .list small{ color:var(--ink3); white-space:nowrap }
.list .d{ color:var(--teal); font-size:.82em; display:block }
.count{ color:var(--ink2); font-size:.92em; margin:8px 0 }
.empty{ padding:40px; text-align:center; color:var(--ink2); background:var(--surface); border-radius:var(--r2); border:1px dashed var(--line) }

/* artykuł */
.crumbs{ font-size:.85em; color:var(--ink3); margin:18px 0 } .crumbs a{ color:var(--ink2) } .crumbs span{ margin:0 6px }
.ahead{ padding:10px 0 26px; border-bottom:1px solid var(--line); margin-bottom:30px }
.ahead .meta{ display:flex; gap:16px; flex-wrap:wrap; color:var(--ink3); font-size:.88em; margin-top:10px }
.layout{ display:grid; grid-template-columns:minmax(0,1fr) 300px; gap:clamp(24px,4vw,56px) }
@media (max-width:960px){ .layout{ grid-template-columns:1fr } .aside{ order:-1 } }
.aside{ position:sticky; top:90px; align-self:start; display:flex; flex-direction:column; gap:18px }
.box{ background:var(--surface); border:1px solid var(--line); border-radius:var(--r2); padding:18px }
.box h3{ font-family:var(--sans); font-size:.95rem; font-weight:600; margin:0 0 10px }
.box ul{ margin:0; padding-left:18px; font-size:.92em } .box li{ margin:5px 0 }
.toc ol{ margin:0; padding-left:18px; font-size:.92em } .toc li{ margin:5px 0 }
.prose{ max-width:72ch; font-size:1.04em; line-height:1.65 }
.prose h2{ margin-top:1.6em } .prose ul{ padding-left:22px }
.prose .math-inline{ font-family:var(--serif); font-style:italic; font-size:1.15em }
.skel{ margin:14px 0 }
.skel i{ display:block; height:12px; border-radius:6px; background:linear-gradient(90deg,var(--surface2),var(--line),var(--surface2)); margin:9px 0; opacity:.8 }
.skel i.s{ width:60% } .skel i.m{ width:85% } .skel i.h{ height:22px; width:45%; margin-top:26px }
.navpn{ display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-top:36px }
.navpn a{ background:var(--surface); border:1px solid var(--line); border-radius:var(--r); padding:14px; color:var(--ink) } .navpn a:hover{ border-color:var(--teal); text-decoration:none }
.navpn small{ display:block; color:var(--ink3); font-size:.8em } .navpn a.n{ text-align:right }
@media (max-width:560px){ .navpn{ grid-template-columns:1fr } .navpn a.n{ text-align:left } }
.ph{ background:repeating-linear-gradient(45deg,var(--surface2),var(--surface2) 8px,var(--surface) 8px,var(--surface) 16px); border:1px dashed var(--line); border-radius:var(--r2); aspect-ratio:16/7; display:grid; place-items:center; color:var(--ink3); font-size:.9em; margin:18px 0 }

/* stopka */
footer.site{ background:var(--deep); color:#B9D2DC; margin-top:60px; padding:48px 0 calc(28px + 60px) }
footer .cols{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:28px }
@media (max-width:860px){ footer .cols{ grid-template-columns:1fr 1fr } } @media (max-width:520px){ footer .cols{ grid-template-columns:1fr } }
footer h3{ font-family:var(--sans); font-size:.9rem; font-weight:600; color:#fff; margin-bottom:10px }
footer ul{ list-style:none; margin:0; padding:0 } footer li{ margin:6px 0 } footer a{ color:#D7E7EE } footer .logo{ color:#fff }
footer .fine{ border-top:1px solid rgba(255,255,255,.15); margin-top:30px; padding-top:18px; font-size:.85em; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px }

/* pasek mobilny */
.mobar{ display:none; position:fixed; left:0; right:0; bottom:0; z-index:25; background:var(--surface); border-top:1px solid var(--line); padding:8px 10px calc(8px + env(safe-area-inset-bottom,0px)); grid-template-columns:repeat(4,1fr); gap:6px }
.mobar a{ display:flex; flex-direction:column; align-items:center; gap:2px; font-size:.72em; color:var(--ink); padding:4px } .mobar svg{ width:22px; height:22px }
@media (max-width:760px){ .mobar{ display:grid } footer.site{ padding-bottom:calc(28px + 70px) } }

/* modale */
.modal{ position:fixed; inset:0; background:rgba(5,20,30,.55); display:none; z-index:50; padding:6vh 16px; overflow:auto }
.modal.open{ display:block }
.modal .pane{ background:var(--surface); color:var(--ink); max-width:680px; margin:0 auto; border-radius:var(--r2); box-shadow:var(--shadow); overflow:hidden }
.modal .pane header{ display:flex; align-items:center; gap:10px; padding:12px 14px; border-bottom:1px solid var(--line) }
.modal input[type=search]{ flex:1; font:inherit; font-size:1.05em; border:0; background:transparent; color:var(--ink); padding:8px } .modal input:focus{ outline:none }
.modal .res{ max-height:60vh; overflow:auto; padding:6px } .modal .res a{ display:block; padding:10px 12px; border-radius:8px; color:var(--ink) }
.modal .res a:hover,.modal .res a.sel{ background:var(--surface2); text-decoration:none } .modal .res small{ color:var(--ink3); display:block; font-size:.8em }
.modal .res .grp{ font-size:.75em; color:var(--ink3); padding:10px 12px 4px }
.modal .pane .body{ padding:18px }
.a11y .row{ display:flex; align-items:center; justify-content:space-between; gap:12px; padding:10px 0; border-bottom:1px solid var(--line) }
.a11y .row:last-child{ border:0 } .seg{ display:flex; gap:4px } .seg button{ border:1px solid var(--line); background:var(--paper); border-radius:6px; padding:6px 10px; cursor:pointer }
.seg button[aria-pressed=true]{ background:var(--deep); color:#fff; border-color:var(--deep) }
.cookie{ position:fixed; left:16px; right:16px; bottom:calc(16px + env(safe-area-inset-bottom,0px)); max-width:560px; margin:0 auto; background:var(--surface); border:1px solid var(--line); border-radius:var(--r2); padding:16px 18px; box-shadow:var(--shadow); z-index:40; display:none; font-size:.92em }
.cookie.open{ display:block } .cookie .acts{ display:flex; gap:8px; flex-wrap:wrap; margin-top:10px }
@media (max-width:760px){ .cookie{ bottom:calc(76px + env(safe-area-inset-bottom,0px)) } }
.toast{ position:fixed; left:50%; bottom:90px; transform:translateX(-50%); background:var(--deep); color:#fff; padding:10px 16px; border-radius:999px; font-size:.9em; display:none; z-index:60 } .toast.open{ display:block }
@media (prefers-reduced-motion: reduce){ *{ transition:none !important } }
@media print{ header.site,.testbar,.mobar,footer.site,.aside,.navpn,.cookie{ display:none !important } .layout{ display:block } body{ background:#fff; color:#000 } }

/* ===== PRO: nagłówek dwupoziomowy, megamenu, szuflada ===== */
header.site{ border-bottom:0 }
.topline{ background:var(--deep); color:#B9D2DC; font-size:.8em }
.topline .wrap{ display:flex; align-items:center; justify-content:space-between; min-height:32px; gap:12px }
.topline a{ color:#D7E7EE; padding:0 4px } .topline .l{ display:flex; gap:14px; align-items:center } .topline .r{ display:flex; gap:12px; align-items:center }
.topline button{ background:none; border:0; color:#D7E7EE; cursor:pointer; padding:0 4px; display:inline-flex; align-items:center; gap:5px; font-size:1em }
.topline svg{ width:14px; height:14px }
@media (max-width:760px){ .topline .l span.x{ display:none } }
.mainbar{ background:var(--surface); border-bottom:1px solid var(--line); position:relative }
.mainbar .wrap.bar{ min-height:66px }
nav.main{ gap:2px }
nav.main > a, nav.main > .ni > button{ color:var(--ink); padding:9px 12px; border-radius:8px; font-weight:500; background:none; border:0; cursor:pointer; display:inline-flex; align-items:center; gap:6px; font-size:1em }
nav.main > a:hover, nav.main > .ni > button:hover, nav.main > a[aria-current], nav.main > .ni > button[aria-expanded=true], nav.main > .ni.cur > button{ background:var(--surface2); text-decoration:none }
nav.main .ni{ position:relative } nav.main .ni > button svg{ width:14px; height:14px; transition:transform .15s } nav.main .ni > button[aria-expanded=true] svg{ transform:rotate(180deg) }
.mega{ display:none; position:absolute; top:calc(100% + 10px); left:0; background:var(--surface); border:1px solid var(--line); border-radius:14px; box-shadow:var(--shadow); padding:16px; z-index:30; min-width:280px }
.mega.wide{ width:min(880px, calc(100vw - 48px)); left:50%; transform:translateX(-50%) }
.ni.open .mega{ display:block }
.mega::before{ content:""; position:absolute; top:-11px; left:0; right:0; height:12px }
.mega .mg{ display:grid; grid-template-columns:repeat(3,1fr); gap:6px }
.mega a.mi{ display:grid; grid-template-columns:34px 1fr; gap:10px; padding:9px 10px; border-radius:10px; color:var(--ink); align-items:start }
.mega a.mi:hover{ background:var(--surface2); text-decoration:none } .mega a.mi .ico{ width:34px; height:34px; border-radius:9px; background:var(--surface2); display:grid; place-items:center; color:var(--teal) } .mega a.mi .ico svg{ width:20px; height:20px }
.mega a.mi b{ display:block; font-weight:600; font-size:.95em } .mega a.mi small{ color:var(--ink3); font-size:.8em; display:block; line-height:1.35 }
.mega .mfoot{ border-top:1px solid var(--line); margin-top:12px; padding-top:12px; display:flex; justify-content:space-between; align-items:center; gap:12px; font-size:.9em; flex-wrap:wrap }
.mega .mfoot .fx{ font-family:var(--serif); font-style:italic; color:var(--brass); font-size:1.2em }
.mega ul{ list-style:none; margin:0; padding:0 } .mega ul a{ display:block; padding:8px 10px; border-radius:8px; color:var(--ink) } .mega ul a:hover{ background:var(--surface2); text-decoration:none } .mega ul small{ display:block; color:var(--ink3); font-size:.8em }
.hsearch{ display:flex; align-items:center; gap:8px; background:var(--paper); border:1px solid var(--line); border-radius:999px; padding:0 6px 0 12px; height:40px; min-width:230px; margin-left:auto; cursor:text }
.hsearch:focus-within{ border-color:var(--teal); box-shadow:0 0 0 3px color-mix(in srgb,var(--teal) 20%,transparent) }
.hsearch input{ border:0; background:none; font:inherit; color:var(--ink); flex:1; min-width:0 } .hsearch input:focus{ outline:none } .hsearch kbd{ font:600 .7rem var(--sans); color:var(--ink3); border:1px solid var(--line); border-radius:4px; padding:1px 5px; white-space:nowrap }
.hsearch svg{ width:16px; height:16px; color:var(--ink3) }
.progress{ position:absolute; left:0; bottom:-1px; height:3px; width:0; background:var(--teal); transition:width .1s linear }
@media (max-width:1100px){ nav.main > a, nav.main > .ni > button{ padding:9px 9px } .hsearch{ min-width:170px } }
@media (max-width:960px){ nav.main, .hsearch{ display:none } .mainbar .tools{ margin-left:auto } .burger{ display:inline-flex } }
/* szuflada mobilna */
.drawer{ position:fixed; inset:0; z-index:45; display:none } .drawer.open{ display:block }
.drawer .bg{ position:absolute; inset:0; background:rgba(5,20,30,.5) }
.drawer .pane{ position:absolute; top:0; right:0; bottom:0; width:min(360px,88vw); background:var(--surface); overflow:auto; padding:14px 16px calc(90px + env(safe-area-inset-bottom,0px)); box-shadow:var(--shadow) }
.drawer .pane header{ display:flex; justify-content:space-between; align-items:center; margin-bottom:12px }
.drawer h3{ font-family:var(--sans); font-size:.8rem; font-weight:600; color:var(--ink3); margin:16px 0 6px }
.drawer a.dl{ display:flex; justify-content:space-between; padding:10px 8px; border-radius:8px; color:var(--ink); font-weight:500 } .drawer a.dl:hover{ background:var(--surface2); text-decoration:none } .drawer a.dl small{ color:var(--ink3) }
.drawer .dsearch{ display:flex; gap:8px } .drawer .dsearch input{ flex:1; padding:10px 12px; border:1px solid var(--line); border-radius:8px; background:var(--paper); color:var(--ink); font:inherit }

/* ===== PRO: stopka ===== */
footer.site{ padding:0 0 calc(24px + 60px) }
footer .news{ background:var(--deep2); border-bottom:1px solid rgba(255,255,255,.12) }
footer .news .wrap{ display:grid; grid-template-columns:1.1fr 1fr; gap:24px; align-items:center; padding-top:34px; padding-bottom:34px }
footer .news h2{ color:#fff; font-size:1.8rem; margin:0 0 6px } footer .news p{ margin:0; max-width:46ch }
footer .news form{ display:flex; gap:8px; flex-wrap:wrap } footer .news input{ flex:1; min-width:200px; padding:12px 14px; border-radius:999px; border:1px solid rgba(255,255,255,.3); background:rgba(255,255,255,.06); color:#fff; font:inherit }
footer .news input::placeholder{ color:#8FB0BE } footer .news small{ display:block; color:#8FB0BE; margin-top:8px; font-size:.8em }
@media (max-width:860px){ footer .news .wrap{ grid-template-columns:1fr } }
footer .cols{ grid-template-columns:1.3fr 1fr 1fr .9fr .9fr; padding-top:44px }
@media (max-width:1000px){ footer .cols{ grid-template-columns:1fr 1fr 1fr } } @media (max-width:620px){ footer .cols{ grid-template-columns:1fr 1fr } footer .cols > div:first-child{ grid-column:1/-1 } }
footer .cols li a{ display:inline-flex; gap:6px; align-items:baseline } footer .cols li small{ color:#7E9AA6; font-size:.78em }
footer .stat{ display:flex; gap:22px; margin:16px 0 }
footer .stat b{ display:block; font-family:var(--serif); font-size:1.7rem; font-weight:400; color:#fff; line-height:1 } footer .stat span{ font-size:.8em; color:#8FB0BE }
footer .partners{ border-top:1px solid rgba(255,255,255,.12); margin-top:34px; padding-top:18px; display:flex; gap:8px 22px; flex-wrap:wrap; align-items:center; font-size:.88em }
footer .partners span{ color:#8FB0BE } footer .partners a{ color:#D7E7EE }
footer .fine{ align-items:center } footer .fine ul{ display:flex; gap:16px; flex-wrap:wrap } footer .fine button{ background:none; border:0; color:#D7E7EE; cursor:pointer; padding:0; font:inherit; font-size:1em }
footer .fine button:hover, footer .fine a:hover{ text-decoration:underline }
.totop{ display:inline-flex; align-items:center; gap:6px; border:1px solid rgba(255,255,255,.3); border-radius:999px; padding:6px 12px; color:#fff; background:none; cursor:pointer }
.totop svg{ width:14px; height:14px }

/* ===== PRO: wpis ===== */
.ahead.art{ border:0; padding-bottom:0; margin-bottom:16px; max-width:76ch }
.ahead .kicker{ display:inline-flex; gap:8px; align-items:center; margin-bottom:12px; font-size:.88em } .ahead .kicker a{ font-weight:600 } .ahead .kicker .lvl{ color:var(--ink3) }
.ahead .kicker .lvl::before{ content:""; display:inline-block; width:4px; height:4px; border-radius:50%; background:var(--ink3); margin:0 8px 3px 0 }
.byline{ display:flex; align-items:center; gap:12px; margin-top:18px; flex-wrap:wrap }
.avatar{ width:40px; height:40px; border-radius:50%; background:var(--teal); color:#fff; display:grid; place-items:center; font-family:var(--serif); font-size:1.2rem }
.byline .who b{ display:block; font-weight:600; font-size:.95em } .byline .who small{ color:var(--ink3); font-size:.82em }
.byline .time{ margin-left:auto; display:flex; gap:14px; color:var(--ink3); font-size:.85em; flex-wrap:wrap }
.actions{ display:flex; gap:8px; flex-wrap:wrap; margin:18px 0 26px; padding:12px 0; border-top:1px solid var(--line); border-bottom:1px solid var(--line) }
.actions button, .actions a.ab{ display:inline-flex; align-items:center; gap:6px; border:1px solid var(--line); background:var(--surface); color:var(--ink); border-radius:999px; padding:6px 12px; font-size:.88em; cursor:pointer }
.actions button:hover, .actions a.ab:hover{ border-color:var(--teal); text-decoration:none } .actions svg{ width:15px; height:15px }
.actions .sp{ flex:1 }
.figure{ margin:0 0 26px } .figure .ph{ margin:0; aspect-ratio:16/8 } .figure figcaption{ font-size:.82em; color:var(--ink3); margin-top:8px }
.keypoints{ background:var(--surface2); border-radius:var(--r2); padding:18px 20px; margin:0 0 26px }
.keypoints h2{ font-family:var(--sans); font-size:.95rem; font-weight:600; margin:0 0 8px } .keypoints ul{ margin:0; padding-left:20px } .keypoints li{ margin:4px 0 }
.prose h2.sec{ scroll-margin-top:100px; padding-top:6px }
.toc li a{ color:var(--ink2); display:block; padding:3px 0 3px 10px; margin-left:-12px; border-left:2px solid transparent }
.toc li a.on{ color:var(--teal); border-color:var(--teal); font-weight:600 } .toc ol{ list-style:none; padding-left:12px }
.glossary{ display:flex; flex-wrap:wrap; gap:8px; margin:0 0 26px }
.glossary a{ display:inline-flex; align-items:center; gap:6px; border:1px solid var(--line); background:var(--surface); border-radius:999px; padding:5px 12px; font-size:.88em; color:var(--ink) }
.glossary a:hover{ border-color:var(--teal); text-decoration:none } .glossary a svg{ width:13px; height:13px; color:var(--teal) }
.mini{ display:grid; grid-template-columns:1fr auto; gap:10px; align-items:end; margin-top:14px; padding-top:14px; border-top:1px dashed color-mix(in srgb,var(--brass) 45%,transparent) }
.mini label{ display:block; font-size:.82em; color:var(--ink2); margin-bottom:4px } .mini input{ width:100%; padding:8px 10px; border:1px solid var(--line); border-radius:8px; background:var(--surface); color:var(--ink); font:inherit }
.mini output{ font-family:var(--serif); font-size:1.4rem; color:var(--brass); white-space:nowrap }
@media (max-width:480px){ .mini{ grid-template-columns:1fr } }
.faq details{ border-top:1px solid var(--line); padding:10px 0 } .faq details:last-child{ border-bottom:1px solid var(--line) }
.faq summary{ cursor:pointer; font-weight:600; list-style:none; display:flex; justify-content:space-between; gap:12px } .faq summary::-webkit-details-marker{ display:none }
.faq summary::after{ content:"+"; color:var(--teal); font-size:1.3em; line-height:1 } .faq details[open] summary::after{ content:"–" }
.faq .a{ color:var(--ink2); padding-top:8px }
.authorbox{ display:grid; grid-template-columns:56px 1fr; gap:14px; background:var(--surface); border:1px solid var(--line); border-radius:var(--r2); padding:18px; margin-top:34px }
.authorbox .avatar{ width:56px; height:56px; font-size:1.6rem } .authorbox b{ display:block } .authorbox p{ margin:4px 0 0; color:var(--ink2); font-size:.92em }
.after{ margin-top:48px; border-top:1px solid var(--line); padding-top:34px }
.after h2{ margin-bottom:16px }
.aside .box.dzbox{ background:var(--deep); color:#DCE9EE; border:0 } .aside .box.dzbox h3{ color:#fff } .aside .box.dzbox a{ color:#BFE3EA } .aside .box.dzbox .n{ font-family:var(--serif); font-size:2rem; line-height:1; color:#fff; display:block; margin:4px 0 8px }

/* ===== WordPress ===== */
body.admin-bar header.site{ top:32px } @media (max-width:782px){ body.admin-bar header.site{ top:46px } }
body.admin-bar .drawer .pane{ padding-top:46px }
.entry-content{ max-width:76ch } .entry-content.wide{ max-width:none }
.entry-content > *{ margin-top:0 } .entry-content h2{ margin-top:1.6em } .entry-content ul,.entry-content ol{ padding-left:22px }
.entry-content img{ height:auto; border-radius:var(--r) } .entry-content figure{ margin:1.5em 0 } .entry-content figcaption{ font-size:.85em; color:var(--ink3) }
.entry-content table{ border-collapse:collapse; width:100% } .entry-content th,.entry-content td{ border:1px solid var(--line); padding:8px 10px; text-align:left }
.entry-content .tbl-wrap{ overflow-x:auto }
.entry-content pre, .entry-content code{ background:var(--surface2); border-radius:6px; padding:2px 6px; font-size:.9em } .entry-content pre{ padding:12px; overflow:auto }
.entry-content blockquote{ border-left:4px solid var(--teal); margin:1.5em 0; padding:6px 18px; color:var(--ink2) }
.entry-content a{ text-decoration:underline; text-decoration-color:color-mix(in srgb,var(--teal) 40%,transparent); text-underline-offset:3px }
.entry-content .wp-block-image img{ max-width:100% }
.prose .wp-caption{ max-width:100% } .prose .wp-caption-text{ font-size:.85em; color:var(--ink3) }
.alignwide{ margin-left:calc(50% - 50vw + 16px); margin-right:calc(50% - 50vw + 16px) }
.pagination ul{ list-style:none; display:flex; gap:6px; flex-wrap:wrap; margin:24px 0; padding:0 }
.pagination a,.pagination span{ display:inline-block; padding:8px 12px; border:1px solid var(--line); border-radius:8px; background:var(--surface); color:var(--ink) }
.pagination .current{ background:var(--deep); color:#fff; border-color:var(--deep) } .pagination a:hover{ border-color:var(--teal); text-decoration:none }
.formulas .formula{ margin-bottom:18px } .formula .note{ margin:12px 0 0; color:var(--ink2) } .formula .links{ margin:12px 0 0 } .formula .math{ font-size:1.6rem }
.calc .note{ color:var(--ink2); font-size:.92em } .calc .out.multi{ font-size:1.1rem; line-height:1.7 } .calc textarea{ width:100%; padding:10px; border:1px solid var(--line); border-radius:8px; background:var(--paper); color:var(--ink); font:inherit }
.calc .consent{ display:flex; gap:8px; align-items:flex-start; font-size:.85em; color:var(--ink2); margin:12px 0 } .calc .consent input{ width:auto; margin-top:3px }
.hs-form .hp{ position:absolute; left:-9999px } .hs-form .msg{ margin:8px 0 0; font-size:.9em; color:var(--teal) } .hs-form .msg.err{ color:#b4382a }
footer .news form{ position:relative } footer .news form .msg{ flex-basis:100%; color:#BFE3EA; margin:0 } footer .news .btn{ white-space:nowrap }
p.small{ color:var(--ink3); font-size:.85em; margin-top:16px }
.cloud{ line-height:2.2 } .cloud .chip span{ color:var(--ink3) }
.card.haslo h3{ font-family:var(--sans); font-weight:600; font-size:1.05rem }
.hub .ico svg,.doc .thumb svg{ width:28px; height:28px } .doc .thumb img{ width:100%; height:100%; object-fit:cover }
.sechead h2{ margin-bottom:.2em }
.figure img{ width:100%; height:auto; border-radius:var(--r2); display:block }
.thumb-wide{ aspect-ratio:16/8; object-fit:cover }
.page-head{ padding:10px 0 20px; max-width:76ch }
.search-form{ display:flex; gap:8px; margin:0 0 20px } .search-form input{ flex:1; min-width:200px; padding:10px 14px; border:1px solid var(--line); border-radius:8px; background:var(--surface); color:var(--ink); font:inherit }
.noth{ margin:20px 0 }
.mobar{ padding-bottom:calc(8px + env(safe-area-inset-bottom,0px)) }
.drawer a.dl.sub{ padding-left:22px; font-weight:400; color:var(--ink2) }
@media (max-width:760px){ .topline .l{ display:none } .topline .wrap{ justify-content:flex-end } }