:root{--bg:#05070a;--bg2:#0a0f14;--panel:#0e151c;--panel2:#111b24;--line:#26333f;--text:#e7edf3;--muted:#aab6c2;--gold:#0057c8;--gold2:#0072ce;--red:#b3261e;--white:#fff;--shadow:0 18px 55px rgba(0,0,0,.36)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.68}a{color:inherit}img{max-width:100%;height:auto}.wrap{width:min(1180px,calc(100% - 40px));margin:0 auto}.topbar{background:#020304;color:var(--muted);font-size:14px;border-bottom:1px solid var(--line)}.topbar .wrap{display:flex;justify-content:space-between;gap:20px;padding:10px 0;flex-wrap:wrap}.topbar a{color:var(--gold2);text-decoration:none}.header{position:sticky;top:0;z-index:50;background:rgba(5,7,10,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 0}.brand{display:flex;align-items:center;gap:12px;text-decoration:none}.mark{width:42px;height:42px;border:2px solid var(--gold);display:grid;place-items:center;color:var(--gold2);font-weight:900}.brand strong{font-size:24px;letter-spacing:.06em}.brand span{display:block;font-size:12px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}.menu{display:flex;gap:18px;align-items:center;flex-wrap:wrap}.menu a{text-decoration:none;color:#cdd7e1;font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:.04em}.menu a:hover{color:var(--gold2)}.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--gold);background:linear-gradient(135deg,var(--gold),#003f91);color:#090b0d;text-decoration:none;font-weight:900;padding:13px 20px;text-transform:uppercase;letter-spacing:.04em}.btn.dark{background:transparent;color:var(--gold2)}.hero{position:relative;overflow:hidden;background:linear-gradient(110deg,rgba(5,7,10,.98),rgba(10,15,20,.92)),radial-gradient(circle at 75% 15%,rgba(0,87,200,.28),transparent 26%);border-bottom:1px solid var(--line);padding:88px 0}.hero:after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,rgba(255,255,255,.03) 0 1px,transparent 1px 18px);pointer-events:none}.hero .wrap{position:relative;z-index:2}.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:34px;align-items:center}.eyebrow{color:var(--gold2);font-weight:900;text-transform:uppercase;letter-spacing:.12em;font-size:13px}h1{font-size:54px;line-height:1.06;margin:14px 0 18px;text-transform:uppercase;letter-spacing:.02em}h2{font-size:34px;line-height:1.18;margin:0 0 16px;text-transform:uppercase}h3{font-size:21px;line-height:1.25;margin:0 0 10px}.lead{font-size:20px;color:#d7e0e8;max-width:780px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.badge{border:1px solid var(--line);background:#0b1117;color:#d8e1e9;padding:8px 12px;font-size:13px;text-transform:uppercase;font-weight:800}.panel,.card{background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);box-shadow:var(--shadow)}.panel{padding:28px}.card{padding:24px;min-height:100%}.card p,.panel p,p{color:var(--muted)}section{padding:70px 0;background:var(--bg)}section.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.list{list-style:none;margin:18px 0 0;padding:0}.list li{position:relative;padding-left:30px;margin:12px 0;color:#cfdae4}.list li:before{content:"";position:absolute;left:0;top:.65em;width:12px;height:12px;background:var(--gold);box-shadow:0 0 18px rgba(213,162,50,.45)}.metric{border-left:3px solid var(--gold);padding-left:16px}.metric b{display:block;font-size:30px;color:var(--gold2)}.cta{background:linear-gradient(135deg,#0b1117,#121b24);border:1px solid var(--gold);padding:34px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;box-shadow:var(--shadow)}.faq details{background:linear-gradient(180deg,#0d141b,#0a1016);border:1px solid var(--line);padding:18px 20px;margin:12px 0}.faq summary{cursor:pointer;font-weight:900;color:#f3f7fb;text-transform:uppercase}.faq p{margin-bottom:0}.breadcrumbs{font-size:14px;color:var(--muted);margin-bottom:20px}.breadcrumbs a{color:var(--gold2);text-decoration:none}.article-meta{font-size:14px;color:var(--muted);margin:8px 0 20px}.article-content h2{margin-top:36px}.article-content ul{color:var(--muted)}.footer{background:#020304;border-top:1px solid var(--line);padding:48px 0;color:#d8e2ec}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:28px}.footer a{color:var(--gold2);text-decoration:none}.small{font-size:14px;color:#94a3b8}.notice{border:1px dashed var(--gold);padding:18px;background:#0a0f14;color:#d9e3ec}.calc input,.calc select,.calc textarea{width:100%;padding:13px;background:#05070a;border:1px solid var(--line);color:var(--text);margin:8px 0 14px}.result{font-size:24px;font-weight:900;color:var(--gold2);margin-top:14px}.mobile-toggle{display:none;background:none;border:1px solid var(--line);color:var(--text);padding:10px}
@media(max-width:920px){.hero-grid,.grid-2,.grid-3,.grid-4,.cta,.footer-grid{grid-template-columns:1fr}h1{font-size:38px}.menu{display:none;width:100%;flex-direction:column;align-items:flex-start;padding-bottom:18px}.menu.open{display:flex}.mobile-toggle{display:block}.nav{flex-wrap:wrap}.panel{padding:22px}}

/* POLFILTER blue hover alignment */
.menu a:hover,
.topbar a:hover{
  color:#0072ce;
}
.menu a{
  border-radius:6px;
  padding:9px 10px;
  transition:color .2s ease, background .2s ease, border-color .2s ease;
}
.menu a:hover{
  background:rgba(0,87,200,.12);
}
.brand-logo{
  height:46px;
  width:auto;
  display:block;
}
.brand-text-fallback{
  display:none;
}
@media(max-width:720px){
  .brand-logo{height:38px}
}

/* Fix: remove oversized fallback brand text and keep logo compact */
.brand{display:flex;align-items:center;text-decoration:none;line-height:1;min-width:auto;overflow:hidden;}
.brand-logo{display:block;height:46px;width:auto;max-width:90px;object-fit:contain;}
.brand-text-fallback{display:none!important;}
.nav .brand strong,.nav .brand span:not(.mark){display:none!important;}


/* Aktualizacja logo POLFILTER */
.site-logo,
.logo,
.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  min-width: 260px;
}

.site-logo img,
.logo img,
.brand img,
header img[src*="logo-polfilter"] {
  display: block;
  width: 300px;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

/* Kolor hover dopasowany do nowego logo POLFILTER */
:root {
  --polfilter-blue: #1f6fe5;
  --polfilter-blue-light: #2f8cff;
}

nav a:hover,
.menu a:hover,
.nav a:hover,
header a:hover {
  color: var(--polfilter-blue-light) !important;
  border-color: var(--polfilter-blue) !important;
}

nav a::after,
.menu a::after,
.nav a::after {
  background: var(--polfilter-blue) !important;
}

.btn,
.button,
.cta,
input[type="submit"],
button {
  border-color: var(--polfilter-blue) !important;
}

.btn-primary,
.button-primary,
.cta-primary {
  background: var(--polfilter-blue) !important;
}

@media (max-width: 768px) {
  .site-logo img,
  .logo img,
  .brand img,
  header img[src*="logo-polfilter"] {
    width: 220px;
  }
}


/* Logo dopasowane do ciemnego tła strony */
.site-logo,
.logo,
.brand {
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  padding: 0 !important;
}

.site-logo img,
.logo img,
.brand img,
header img[src*="logo-polfilter"] {
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  width: 330px;
  max-height: 78px;
  object-fit: contain;
  filter: drop-shadow(0 10px 20px rgba(0,0,0,.45));
}

/* Tło nagłówka zbliżone do tła strony, aby logo nie tworzyło prostokąta */
header,
.site-header,
.header,
.topbar,
.navbar {
  background: #0c1117 !important;
}

/* Dopasowany niebieski z logo */
:root {
  --polfilter-blue: #1f6fe5;
  --polfilter-blue-light: #2f8cff;
}

nav a:hover,
.menu a:hover,
.nav a:hover,
header a:hover {
  color: var(--polfilter-blue-light) !important;
}

@media (max-width: 768px) {
  .site-logo img,
  .logo img,
  .brand img,
  header img[src*="logo-polfilter"] {
    width: 230px;
    max-height: 60px;
  }
}


/* Ujednolicenie wyglądu artykułów w Centrum wiedzy */
.article-content, main section .wrap {
  position: relative;
}
.blog-article .wrap {
  max-width: 1180px;
}
.blog-article h1,
.blog-article h2,
.blog-article h3 {
  letter-spacing: -0.02em;
}