/* Procedura - design system. Granat atramentowy, burgund, oszczedne zloto. */
:root{
  --bg:#f2f4f7;
  --surface:#ffffff;
  --surface-2:#e9edf2;
  --text:#121a26;
  --muted:#55616f;
  --muted-2:#6d7887;
  --navy:#1b2f4b;
  --navy-deep:#0f1d31;
  --navy-soft:#e6ecf4;
  --burgundy:#7c2230;
  --burgundy-strong:#5f1824;
  --burgundy-soft:#f7e9eb;
  --gold:#a9863f;
  --gold-soft:#f6efdf;
  --border:#d9e0e8;
  --border-strong:#c4ceda;
  --header-h:68px;
  --sidebar-w:306px;
  --radius:4px;
  --ease-out:cubic-bezier(.23,1,.32,1);
  --ease-io:cubic-bezier(.77,0,.175,1);
  --shadow-soft:0 1px 2px rgba(15,29,49,.05),0 8px 24px rgba(15,29,49,.05);
  --font-display:'Bodoni Moda',Georgia,'Times New Roman',serif;
  --font-body:'Figtree',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0c1118;
    --surface:#131b26;
    --surface-2:#1a2432;
    --text:#e7ecf3;
    --muted:#a3b0c0;
    --muted-2:#8e9cae;
    --navy:#9dbce0;
    --navy-deep:#0a1626;
    --navy-soft:#1b2838;
    --burgundy:#e79aa6;
    --burgundy-strong:#efb3bc;
    --burgundy-soft:#2b161b;
    --gold:#d3b273;
    --gold-soft:#2a2317;
    --border:#26313f;
    --border-strong:#354355;
    --shadow-soft:0 1px 2px rgba(0,0,0,.3),0 10px 28px rgba(0,0,0,.28);
  }
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-body);font-size:17.5px;line-height:1.7;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
body::before{
  content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(60rem 40rem at 88% -10%,rgba(124,34,48,.06),transparent 60%),
    radial-gradient(50rem 34rem at -10% 30%,rgba(27,47,75,.07),transparent 60%);
}
@media (prefers-color-scheme:dark){
  body::before{background:
    radial-gradient(60rem 40rem at 88% -10%,rgba(231,154,166,.05),transparent 60%),
    radial-gradient(50rem 34rem at -10% 30%,rgba(157,188,224,.05),transparent 60%);}
}
img{max-width:100%;display:block}
a{color:var(--burgundy-strong);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--burgundy)}
:focus-visible{outline:2.5px solid var(--burgundy);outline-offset:3px;border-radius:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--navy-deep);color:#fff;padding:12px 20px;z-index:10000}
.skip-link:focus{left:12px;top:12px}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.16;letter-spacing:-.015em;color:var(--text);text-wrap:balance}
p{margin:0 0 1.05em}
::selection{background:rgba(124,34,48,.18)}

/* ---------- Header ---------- */
.app-header{
  position:fixed;top:0;left:0;right:0;z-index:200;height:var(--header-h);
  background:#fbfcfd;border-bottom:1px solid var(--border);
}
@media (prefers-color-scheme:dark){.app-header{background:#0f151e}}
.app-header::after{
  content:'';position:absolute;left:0;right:0;bottom:-1px;height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(124,34,48,.35),rgba(169,134,63,.28),transparent);
  opacity:.55;
}
.header-inner{
  max-width:1560px;margin:0 auto;height:100%;padding:0 26px;
  display:flex;align-items:center;gap:26px;
}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:var(--text);flex-shrink:0}
.brand-mark{width:30px;height:30px;color:var(--burgundy);display:grid;place-items:center;border:1px solid var(--border-strong);border-radius:3px;background:var(--surface)}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-family:var(--font-display);font-size:1.42rem;font-weight:600;letter-spacing:-.01em}
.search-box{position:relative;flex:1;max-width:460px;margin-left:auto}
.search-box .search-icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--muted-2);pointer-events:none}
#searchInput{
  width:100%;height:40px;padding:0 14px 0 39px;border:1px solid var(--border);
  border-radius:3px;background:var(--surface);color:var(--text);
  font-family:var(--font-body);font-size:.95rem;
}
#searchInput::placeholder{color:var(--muted-2)}
#searchInput:focus{border-color:var(--burgundy);outline:none;box-shadow:0 0 0 3px rgba(124,34,48,.1)}
.search-results{
  position:absolute;top:calc(100% + 6px);left:0;right:0;z-index:300;
  background:var(--surface);border:1px solid var(--border);border-radius:3px;
  box-shadow:var(--shadow-soft);max-height:60vh;overflow:auto;
}
.search-results a{display:block;padding:11px 14px;font-size:.92rem;line-height:1.35;color:var(--text);text-decoration:none;border-bottom:1px solid var(--border)}
.search-results a:last-child{border-bottom:0}
.search-results a:hover{background:var(--surface-2)}
.search-results strong{font-weight:600;color:var(--burgundy-strong)}
.search-empty{padding:14px;color:var(--muted);font-size:.9rem}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--border);background:var(--surface);border-radius:3px;cursor:pointer;padding:10px;flex-direction:column;justify-content:space-between}
.menu-toggle span{display:block;height:1.8px;background:var(--text);transition:transform .2s var(--ease-out),opacity .2s}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Layout + sidebar ---------- */
.layout{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);max-width:1560px;margin:var(--header-h) auto 0;min-height:calc(100vh - var(--header-h))}
.sidebar{
  position:sticky;top:var(--header-h);align-self:start;height:calc(100vh - var(--header-h));
  overflow-y:auto;padding:30px 20px 46px 26px;border-right:1px solid var(--border);
  scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent;
}
.sidebar::-webkit-scrollbar{width:7px}
.sidebar::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:6px}
.nav-section{margin-bottom:26px}
.nav-section-title{
  font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--muted-2);font-weight:600;margin:0 0 8px;padding-left:10px;
}
.sidebar-link{
  display:block;padding:6px 10px;margin:1px 0;border-radius:3px;
  font-size:.94rem;line-height:1.35;color:var(--text);text-decoration:none;
  transition:background-color .15s ease,color .15s ease;
}
.sidebar-link:hover{background:var(--surface-2);color:var(--burgundy-strong)}
.sidebar-link.active{background:var(--burgundy-soft);color:var(--burgundy-strong);font-weight:600}
@media (prefers-color-scheme:dark){.sidebar-link.active{background:var(--burgundy-soft);color:var(--burgundy-strong)}}
.sidebar-overlay{display:none}

/* ---------- Main ---------- */
.main{padding:42px 48px 90px;min-width:0}
.main>*{max-width:1010px}
.page-enter{animation:fadeUp .3s var(--ease-out) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(9px)}to{opacity:1;transform:none}}

/* ---------- Hero ---------- */
.home-hero{
  display:grid;grid-template-columns:1.12fr .88fr;
  background:var(--navy-deep);color:#f1f4f8;overflow:hidden;
  margin-bottom:54px;position:relative;
}
.home-hero::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.07);
}
.hero-copy{padding:46px 40px 44px 46px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.hero-wordmark{
  font-family:var(--font-display);font-size:clamp(2.9rem,4.4vw,4.3rem);
  line-height:.98;font-weight:600;letter-spacing:-.02em;color:#fff;margin:0 0 18px;
}
.hero-h1{
  font-family:var(--font-body);font-weight:500;font-size:clamp(1.18rem,1.7vw,1.45rem);
  line-height:1.36;letter-spacing:-.005em;color:#cfdae7;margin:0 0 14px;max-width:30ch;
}
.hero-lede{color:#aebccd;font-size:1.0625rem;line-height:1.62;margin:0 0 26px;max-width:42ch}
.hero-cta{
  display:inline-flex;align-items:center;gap:10px;background:#c9a15e;color:#111c2c;
  padding:13px 22px;border-radius:2px;font-weight:600;font-size:.94rem;letter-spacing:.01em;
  text-decoration:none;transition:transform .18s var(--ease-out),background-color .18s;
}
.hero-cta:hover{background:#d8b273;color:#111c2c;transform:translateY(-1px)}
.hero-cta svg{width:16px;height:16px}
.hero-media{position:relative;min-height:100%;overflow:hidden}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:50% 42%;animation:heroIn .7s var(--ease-out) both}
@keyframes heroIn{from{opacity:0;transform:scale(1.035)}to{opacity:1;transform:none}}

/* ---------- Start steps ---------- */
.start-block{margin-bottom:56px}
.start-head{display:flex;align-items:baseline;justify-content:space-between;gap:24px;border-bottom:1px solid var(--border-strong);padding-bottom:12px;margin-bottom:0}
.start-head h2{font-size:1.5rem;margin:0}
.start-head p{margin:0;color:var(--muted);font-size:.88rem}
.steps{display:grid;grid-template-columns:repeat(3,1fr)}
.step{padding:22px 26px 24px 0;border-bottom:1px solid var(--border)}
.step+.step{padding-left:26px;border-left:1px solid var(--border)}
.step-num{font-family:var(--font-display);font-size:1.65rem;color:var(--gold);line-height:1;margin-bottom:8px}
.step h3{font-family:var(--font-body);font-size:1rem;font-weight:600;margin:0 0 5px}
.step p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.5}
.step a{font-size:.88rem;font-weight:600}

/* ---------- Index sections ---------- */
.index-section{margin-bottom:46px}
.index-section h2{
  font-size:1.55rem;margin:0 0 4px;padding-bottom:10px;border-bottom:1px solid var(--border-strong);
  display:flex;align-items:baseline;gap:14px;
}
.sec-num{font-family:var(--font-body);font-size:.7rem;letter-spacing:.12em;color:var(--gold);font-weight:700}
.index-section .sec-desc{color:var(--muted);font-size:.88rem;margin:9px 0 0}
.index-list{margin-top:6px}
.index-row{
  display:grid;grid-template-columns:1.05fr 1.15fr 22px;gap:26px;align-items:center;
  padding:15px 6px 15px 0;border-bottom:1px solid var(--border);
  text-decoration:none;color:var(--text);transition:background-color .16s ease;
}
.index-row:hover{background:rgba(124,34,48,.035);color:var(--text)}
@media (prefers-color-scheme:dark){.index-row:hover{background:rgba(231,154,166,.05)}}
.index-row h3{font-family:var(--font-body);font-size:1.02rem;font-weight:600;margin:0;line-height:1.32;letter-spacing:-.005em}
.index-row p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.5}
.row-arrow{color:var(--burgundy);opacity:.55;transition:transform .18s var(--ease-out),opacity .18s}
.row-arrow svg{width:17px;height:17px}
.index-row:hover .row-arrow{transform:translateX(4px);opacity:1}

/* ---------- Article ---------- */
.breadcrumbs{font-size:.8rem;color:var(--muted-2);margin:0 0 18px;letter-spacing:.01em}
.breadcrumbs a{color:var(--muted);text-decoration:none}
.breadcrumbs a:hover{color:var(--burgundy);text-decoration:underline}
.breadcrumbs span{margin:0 7px;color:var(--border-strong)}
.article-header{margin-bottom:30px;padding-bottom:24px;border-bottom:1px solid var(--border-strong)}
.article-header h1{font-size:clamp(1.9rem,3.2vw,2.85rem);margin:0 0 14px;letter-spacing:-.02em;max-width:24ch}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;color:var(--muted);font-size:.82rem}
.trust-badge{display:inline-flex;align-items:center;gap:6px;color:var(--burgundy-strong);font-weight:600}
.trust-badge svg{width:14px;height:14px}
.content-article{max-width:none}
.article-header{max-width:none}
.article-nav{max-width:none}
.content-article h2{font-size:1.62rem;margin:2.1em 0 .55em;letter-spacing:-.012em}
.content-article h3{font-family:var(--font-body);font-size:1.13rem;font-weight:600;margin:1.7em 0 .4em}
.content-article p{margin:0 0 1.05em}
.content-article ul,.content-article ol{margin:0 0 1.15em;padding-left:1.35em}
.content-article li{margin-bottom:.35em}
.content-article li::marker{color:var(--burgundy)}
.content-article strong{font-weight:600}
.content-article a{text-decoration:underline}
.content-article blockquote{margin:1.6em 0;padding:16px 20px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface-2);color:var(--text)}
.content-article code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88em;background:var(--surface-2);padding:2px 5px;border-radius:2px}

/* TOC */
.toc{
  background:var(--surface);border:1px solid var(--border);border-top:2px solid var(--navy);
  padding:20px 24px;margin:0 0 34px;
}
.toc-title{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--muted);margin-bottom:10px}
.toc ol{margin:0;padding-left:1.15em;columns:2;column-gap:34px}
.toc li{font-size:.9rem;margin-bottom:6px;break-inside:avoid}
.toc a{color:var(--text);text-decoration:none}
.toc a:hover{color:var(--burgundy);text-decoration:underline}

.article-layout{display:grid;grid-template-columns:minmax(0,690px) 244px;column-gap:44px;align-items:start}
.article-layout>.breadcrumbs{grid-column:1/-1}
.article-main{min-width:0}
.article-rail{position:sticky;top:calc(var(--header-h) + 20px);display:flex;flex-direction:column;gap:20px}
.article-rail .toc{margin:0;padding:16px 18px}
.article-rail .toc ol{columns:1;padding-left:1.1em}
.article-rail .toc li{font-size:.86rem;line-height:1.4}
.rail-related{background:var(--surface);border:1px solid var(--border);padding:16px 18px}
.rail-related ul{list-style:none;margin:0;padding:0}
.rail-related li{font-size:.86rem;line-height:1.4;margin-bottom:9px}
.rail-related li:last-child{margin-bottom:0}
.rail-related a{color:var(--text);text-decoration:none}
.rail-related a:hover{color:var(--burgundy);text-decoration:underline}
@media(max-width:1180px){
  .article-layout{display:block}
  .article-rail{display:none}
}

/* Boxes */
.info-box,.warning-box,.tip-box,.key-takeaways{
  margin:1.6em 0;padding:18px 22px;border:1px solid var(--border);
  border-radius:var(--radius);background:var(--surface);color:var(--text);font-size:.95rem;line-height:1.62;
}
.info-box{background:var(--navy-soft);border-color:rgba(27,47,75,.18)}
.warning-box{background:var(--burgundy-soft);border-color:rgba(124,34,48,.22)}
.tip-box{background:var(--gold-soft);border-color:rgba(169,134,63,.28)}
.key-takeaways{background:var(--surface-2)}
.info-box p:last-child,.warning-box p:last-child,.tip-box p:last-child,.key-takeaways p:last-child{margin-bottom:0}
.info-box strong:first-child,.warning-box strong:first-child,.tip-box strong:first-child,.key-takeaways strong:first-child{display:block;margin-bottom:4px;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
@media (prefers-color-scheme:dark){
  .info-box{background:#16233a;border-color:#2b3d59}
  .warning-box{background:#2d1519;border-color:#4a232a}
  .tip-box{background:#2a2316;border-color:#463a20}
  .key-takeaways{background:#1a2432}
}

/* Tables */
.table-responsive{overflow-x:auto;margin:1.5em 0;border:1px solid var(--border);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:.9rem;line-height:1.45;background:var(--surface)}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top}
th{background:var(--surface-2);font-weight:600;font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(27,47,75,.03)}
@media (prefers-color-scheme:dark){tbody tr:hover{background:rgba(157,188,224,.04)}}
.error-table th{background:var(--burgundy-soft);color:var(--burgundy-strong)}
.compare-table th{background:var(--navy-soft)}

/* FAQ */
.faq-item{border-bottom:1px solid var(--border);padding:0}
.faq-item summary{
  cursor:pointer;padding:15px 34px 15px 0;position:relative;
  font-weight:600;font-size:1rem;line-height:1.45;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:'+';position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-family:var(--font-body);font-size:1.35rem;font-weight:400;color:var(--burgundy);
  transition:transform .18s var(--ease-out);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-a{padding:0 30px 16px 0;color:var(--muted);font-size:.95rem;line-height:1.66}
.faq-a p:last-child{margin-bottom:0}

/* Glossary */
.glossary{margin:1.4em 0}
.glossary dt{font-family:var(--font-display);font-size:1.12rem;font-weight:600;margin-top:1.3em;color:var(--text)}
.glossary dd{margin:.25em 0 0;color:var(--muted);font-size:.95rem;line-height:1.62}

/* Article nav */
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);border:1px solid var(--border);margin-top:56px}
.article-nav a{background:var(--surface);padding:18px 22px;text-decoration:none;color:var(--text);font-size:.92rem;line-height:1.4;transition:background-color .15s}
.article-nav a:hover{background:var(--surface-2);color:var(--burgundy-strong)}
.article-nav .nav-label{display:block;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);margin-bottom:5px}
.article-nav a:last-child{text-align:right}

/* Footer */
.app-footer{background:var(--navy-deep);color:#b9c6d6;margin-top:0}
.footer-inner{max-width:1560px;margin:0 auto;padding:46px 48px 40px;display:grid;gap:10px}
.footer-brand{font-family:var(--font-display);font-size:1.5rem;color:#fff;margin-bottom:4px}
.footer-inner p{margin:0;max-width:78ch;font-size:.9rem;line-height:1.6}
.footer-note{color:#8d9db1;font-size:.84rem !important}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:10px !important}
.footer-links a{color:#d8e1ec;text-decoration:none;font-size:.88rem}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-copy{color:#77879b;font-size:.8rem !important;margin-top:8px !important}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  :root{--sidebar-w:272px}
  .main{padding:36px 34px 80px}
  .hero-copy{padding:38px 30px 38px 34px}
}
@media (max-width:900px){
  :root{--header-h:60px}
  .layout{grid-template-columns:minmax(0,1fr)}
  .sidebar{
    position:fixed;top:var(--header-h);left:0;bottom:0;width:min(86vw,340px);z-index:190;
    background:var(--surface);border-right:1px solid var(--border-strong);
    transform:translateX(-102%);transition:transform .26s var(--ease-out);
    height:auto;box-shadow:var(--shadow-soft);padding-top:24px;
  }
  .sidebar.open{transform:none}
  .sidebar-overlay{display:block;position:fixed;inset:var(--header-h) 0 0;background:rgba(9,16,27,.48);z-index:180}
  .sidebar-overlay[hidden]{display:none}
  .menu-toggle{display:flex}
  .header-inner{padding:0 16px;gap:14px}
  .brand-text{font-size:1.28rem}
  .search-box{max-width:none}
  .main{padding:28px 20px 64px}
  .home-hero{grid-template-columns:1fr;margin-bottom:40px}
  .hero-copy{padding:34px 26px 32px;order:1}
  .hero-media{order:2;min-height:0;height:270px}
  .hero-wordmark{font-size:clamp(2.7rem,11vw,3.7rem)}
  .steps{grid-template-columns:1fr}
  .step{padding:18px 0}
  .step+.step{padding-left:0;border-left:0}
  .index-row{grid-template-columns:1fr 20px;gap:14px}
  .index-row p{display:none}
  .toc ol{columns:1}
  .article-nav{grid-template-columns:1fr}
  .article-nav a:last-child{text-align:left;border-top:1px solid var(--border)}
  .footer-inner{padding:36px 20px 32px}
}
@media (max-width:600px){
  body{font-size:17px}
  .start-head{display:block}
  .start-head p{margin-top:4px}
  .article-header h1{font-size:1.75rem;max-width:none}
  .content-article h2{font-size:1.38rem}
  .hero-media{height:220px}
  .hero-copy{padding:30px 20px}
  .topbar-note{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}