/* Ogrodzenia - design system
   Paleta: grafit stali + cynk + rdza. Typografia: Bricolage Grotesque + IBM Plex Sans. */

:root{
  --bg:#f2f3ef;
  --surface:#fbfbf8;
  --surface-2:#e8eae3;
  --text:#1b201d;
  --muted:#586159;
  --line:#d5dad2;
  --line-strong:#b8c0b5;
  --accent:#9c4a1e;
  --accent-hover:#7d3a15;
  --accent-soft:#f6e8dd;
  --accent-ink:#5b2a0d;
  --steel:#202825;
  --steel-2:#2f3b36;
  --code-bg:#e9ebe4;
  --shadow:0 1px 2px rgba(27,32,29,.05);
  --shadow-lift:0 10px 30px -18px rgba(27,32,29,.45);
  --radius:10px;
  --header-h:68px;
  --sidebar-w:286px;
  --font-display:"Bricolage Grotesque","Trebuchet MS",sans-serif;
  --font-body:"IBM Plex Sans","Segoe UI",sans-serif;
  --ease-out:cubic-bezier(.23,1,.32,1);
}

@media (prefers-color-scheme:dark){
  :root{
    --bg:#111513;
    --surface:#181e1b;
    --surface-2:#1f2723;
    --text:#e9ece6;
    --muted:#a6b0a7;
    --line:#2b342f;
    --line-strong:#3d4842;
    --accent:#de9864;
    --accent-hover:#eeb185;
    --accent-soft:#2a1d15;
    --accent-ink:#f2c7a6;
    --steel:#0d1110;
    --steel-2:#141a17;
    --code-bg:#1e2622;
    --shadow:0 1px 2px rgba(0,0,0,.3);
    --shadow-lift:0 12px 34px -20px rgba(0,0,0,.8);
  }
}

*,*::before,*::after{box-sizing:border-box}
html{font-size:17px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.72;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-hover)}
::selection{background:var(--accent-soft);color:var(--accent-ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}

.app-header{
  position:sticky;top:0;z-index:40;
  background:color-mix(in srgb,var(--surface) 94%,transparent);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.header-inner{
  height:var(--header-h);
  display:flex;align-items:center;gap:24px;
  padding:0 clamp(16px,3vw,34px);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:8px;background:var(--steel);color:var(--accent);
  display:grid;place-items:center;flex-shrink:0;
}
.brand-mark svg{width:21px;height:21px}
.brand-text{font-family:var(--font-display);font-weight:700;font-size:1.24rem;letter-spacing:-.02em;line-height:1}
.brand-sub{
  font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
  padding-left:10px;border-left:1px solid var(--line-strong);line-height:1.2;
}
.search-box{position:relative;margin-left:auto;width:min(320px,34vw)}
.search-icon{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--muted);pointer-events:none}
.search-box input{
  width:100%;height:38px;padding:0 12px 0 34px;
  font:400 .88rem/1 var(--font-body);color:var(--text);
  background:var(--bg);border:1px solid var(--line);border-radius:8px;
  transition:border-color .18s var(--ease-out),box-shadow .18s var(--ease-out);
}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.search-results{
  position:absolute;top:calc(100% + 8px);left:0;right:0;z-index:50;
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
  box-shadow:0 12px 34px -12px rgba(0,0,0,.35);overflow:auto;max-height:60vh;padding:6px;
}
.search-results a{display:block;padding:9px 11px;border-radius:6px;color:var(--text);font-size:.9rem;line-height:1.35}
.search-results a:hover,.search-results a:focus{background:var(--surface-2);color:var(--text)}
.search-results .sr-section{display:block;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:4px}
.search-results .sr-empty{padding:12px;color:var(--muted);font-size:.9rem}
.menu-toggle{
  display:none;width:42px;height:42px;padding:0;border:1px solid var(--line);border-radius:8px;
  background:var(--bg);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text);transition:transform .2s var(--ease-out),opacity .2s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.layout{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);align-items:start}

.sidebar{
  position:sticky;top:var(--header-h);
  height:calc(100dvh - var(--header-h));
  overflow-y:auto;overscroll-behavior:contain;
  border-right:1px solid var(--line);
  padding:26px 18px 48px 24px;
  scrollbar-width:thin;
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:3px}
.sidebar-home{
  display:flex;align-items:center;gap:8px;
  font-family:var(--font-display);font-weight:600;font-size:.95rem;
  color:var(--text);padding:7px 10px;border-radius:7px;margin-bottom:18px;
}
.sidebar-home:hover{background:var(--surface-2);color:var(--text)}
.sidebar-home svg{width:15px;height:15px;color:var(--accent)}
.sidebar-group{margin-bottom:22px;padding-top:14px}
.sidebar-group + .sidebar-group{border-top:1px solid var(--line)}
.sidebar-heading{
  font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--muted);font-weight:600;margin:0 0 8px;padding-left:10px;
}
.sidebar-link{
  display:block;padding:8px 10px;margin-bottom:2px;border-radius:6px;
  font-size:.9rem;line-height:1.45;color:var(--text);
  transition:background .15s var(--ease-out),color .15s var(--ease-out);
}
.sidebar-link:hover{background:var(--surface-2);color:var(--text)}
.sidebar-link.active{background:var(--accent-soft);color:var(--accent-ink);font-weight:600}
.sidebar-overlay{display:none}

.main{min-width:0;padding:34px clamp(20px,3.6vw,54px) 90px}
#content{max-width:860px}

/* ---------- Strona główna ---------- */
.home-hero{
  position:relative;isolation:isolate;overflow:hidden;
  min-height:470px;border-radius:14px;
  display:flex;align-items:flex-end;
  padding:clamp(26px,4vw,46px);
  color:#f3f2ec;background:var(--steel);
}
.home-hero img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  z-index:-2;opacity:.86;
  animation:heroIn 1.5s var(--ease-out) both;
}
.home-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(96deg,rgba(12,17,14,.92) 0%,rgba(12,17,14,.74) 46%,rgba(12,17,14,.18) 100%);
}
.hero-inner{max-width:640px;animation:fadeUp .7s .15s var(--ease-out) both}
.hero-brand{
  display:flex;align-items:center;gap:9px;margin-bottom:16px;
  font-family:var(--font-display);font-weight:600;font-size:.95rem;color:#e9c4a6;
}
.hero-brand svg{width:19px;height:19px}
.home-hero h1{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.02;letter-spacing:-.03em;
  margin:0 0 16px;color:#f7f5ef;text-wrap:balance;
}
.home-hero p{font-size:clamp(1rem,1.35vw,1.1rem);line-height:1.6;color:#dddcd2;margin:0 0 26px;max-width:46ch}
.hero-cta{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--accent);color:#fff;font-weight:600;font-size:1rem;
  padding:14px 24px;border-radius:7px;
  transition:background .18s var(--ease-out),transform .18s var(--ease-out);
}
.hero-cta svg{width:16px;height:16px;transition:transform .18s var(--ease-out)}
.hero-cta:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px)}
.hero-cta:hover svg{transform:translateX(3px)}
.hero-cta:active{transform:scale(.98)}

.home-intro{
  display:flex;align-items:baseline;justify-content:space-between;gap:18px;
  margin:40px 0 4px;padding-bottom:14px;
}
.home-intro h2{font-family:var(--font-display);font-size:1.05rem;font-weight:600;margin:0;letter-spacing:-.01em}
.home-intro span{font-size:.8rem;color:var(--muted)}
.home-section{padding:26px 0 6px;border-top:1px solid var(--line)}
.home-section:first-of-type{border-top:0;padding-top:14px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin-bottom:4px}
.section-head h2{
  font-family:var(--font-display);font-weight:700;font-size:1.5rem;
  letter-spacing:-.022em;margin:0;line-height:1.15;
}
.section-head span{font-size:.78rem;color:var(--muted);white-space:nowrap}
.article-index{list-style:none;margin:0;padding:0}
.article-index li{border-bottom:1px solid var(--line)}
.article-index li:last-child{border-bottom:0}
.article-index a{
  display:grid;grid-template-columns:minmax(0,1fr) 26px;align-items:center;gap:14px;
  padding:14px 10px;margin:0 -10px;border-radius:8px;color:var(--text);
  transition:background .15s var(--ease-out);
}
.article-index a:hover{color:var(--text);background:var(--surface-2)}
.idx-title{display:block;font-weight:600;font-size:1rem;line-height:1.35;transition:color .15s var(--ease-out)}
.idx-desc{display:block;font-size:.88rem;color:var(--muted);line-height:1.5;margin-top:2px;max-width:72ch}
.idx-arrow{width:17px;height:17px;color:var(--accent);opacity:0;transform:translateX(-5px);transition:opacity .18s var(--ease-out),transform .18s var(--ease-out)}
.article-index a:hover .idx-title{color:var(--accent)}
.article-index a:hover .idx-arrow{opacity:1;transform:translateX(0)}

/* ---------- Artykuł ---------- */
.article{animation:fadeUp .45s var(--ease-out) both}
.breadcrumb{font-size:.8rem;color:var(--muted);margin-bottom:14px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{margin:0 7px;opacity:.6}
.article h1{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(2rem,4.2vw,2.85rem);line-height:1.05;letter-spacing:-.03em;
  margin:0 0 14px;text-wrap:balance;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:.8rem;color:var(--muted);margin-bottom:8px}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong)}
.article-lead{font-size:1.12rem;line-height:1.65;color:var(--muted);margin:0 0 26px;max-width:64ch}

.toc{border:1px solid var(--line);background:var(--surface);border-radius:11px;padding:18px 22px;margin:0 0 34px}
.toc-title{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:9px}
.toc ol{margin:0;padding-left:18px;columns:2;column-gap:34px}
.toc li{font-size:.9rem;line-height:1.55;margin-bottom:4px;break-inside:avoid}
.toc a{color:var(--text)}
.toc a:hover{color:var(--accent)}

.article-body{max-width:70ch}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  font-family:var(--font-display);font-weight:700;font-size:1.52rem;line-height:1.2;
  letter-spacing:-.02em;margin:2.5em 0 .65em;scroll-margin-top:calc(var(--header-h) + 18px);
}
.article-body h2::before{content:"";display:block;width:26px;height:3px;background:var(--accent);margin-bottom:13px;border-radius:2px}
.article-body h3{font-weight:600;font-size:1.14rem;line-height:1.35;margin:1.9em 0 .45em;scroll-margin-top:calc(var(--header-h) + 18px)}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.2em}
.article-body li{margin-bottom:.4em}
.article-body strong{font-weight:600}
.article-body a{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body blockquote{
  margin:1.5em 0;padding:2px 0 2px 18px;border-left:3px solid var(--line-strong);
  color:var(--muted);font-style:italic;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88em;background:var(--code-bg);padding:1px 5px;border-radius:4px}

.table-wrap{overflow-x:auto;margin:1.5em 0;border:1px solid var(--line);border-radius:9px}
table{width:100%;border-collapse:collapse;font-size:.9rem;line-height:1.5}
thead th{
  background:var(--steel-2);color:#f0efe8;text-align:left;font-weight:600;
  padding:10px 13px;font-size:.82rem;letter-spacing:.02em;white-space:nowrap;
}
tbody td{padding:10px 13px;border-top:1px solid var(--line);vertical-align:top}
tbody tr:nth-child(even){background:color-mix(in srgb,var(--surface) 60%,transparent)}
tbody th{text-align:left;padding:10px 13px;border-top:1px solid var(--line);font-weight:600;background:var(--surface-2)}
.table-caption{font-size:.78rem;color:var(--muted);margin:-.8em 0 1.6em}

.info-box,.warn-box,.tip-box{
  margin:1.6em 0;padding:18px 20px;border-radius:9px;
  background:var(--accent-soft);color:var(--text);border:1px solid color-mix(in srgb,var(--accent) 26%,transparent);
  font-size:.97rem;line-height:1.62;
}
.warn-box{background:color-mix(in srgb,var(--accent-soft) 60%,var(--surface));border-color:color-mix(in srgb,var(--accent) 40%,transparent)}
.tip-box{background:var(--surface-2);border-color:var(--line-strong)}
.info-box strong,.warn-box strong,.tip-box strong{display:block;font-size:.78rem;letter-spacing:.07em;text-transform:uppercase;color:var(--accent-ink);margin-bottom:4px}
.info-box p:last-child,.warn-box p:last-child,.tip-box p:last-child{margin-bottom:0}

.error-table td:first-child{font-weight:600;white-space:nowrap;color:var(--accent-ink)}
.error-table code{white-space:nowrap}

.faq-item{border-bottom:1px solid var(--line);padding:2px 0}
.faq-item summary{
  cursor:pointer;list-style:none;padding:15px 30px 15px 0;position:relative;
  font-weight:600;font-size:1rem;line-height:1.45;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:4px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s var(--ease-out);
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(225deg)}
.faq-item .faq-answer{padding:0 12px 16px 0;color:var(--text);font-size:.97rem}
.faq-item .faq-answer p{margin:0 0 .7em}

dl.glossary{margin:1.4em 0}
dl.glossary dt{font-weight:600;margin-top:1.15em;font-size:1rem}
dl.glossary dd{margin:.15em 0 0;color:var(--muted);font-size:.96rem;line-height:1.62}

.article-footer{margin-top:46px;padding-top:22px;border-top:1px solid var(--line);font-size:.9rem;color:var(--muted)}
.article-footer a{font-weight:500}
.related{margin-top:34px}
.related h2{font-family:var(--font-display);font-size:1.15rem;margin:0 0 10px}
.related ul{list-style:none;margin:0;padding:0}
.related li{padding:8px 0;border-bottom:1px solid var(--line)}
.related li:last-child{border-bottom:0}

/* ---------- Stopka ---------- */
.app-footer{border-top:1px solid var(--line);background:var(--surface);margin-left:var(--sidebar-w)}
.footer-inner{max-width:860px;padding:36px clamp(20px,3.6vw,54px) 44px;font-size:.88rem;color:var(--muted);line-height:1.65}
.footer-inner strong{color:var(--text)}
.footer-note{font-size:.8rem;margin-top:10px}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px}
.footer-links a{color:var(--text);font-weight:500;font-size:.86rem}
.footer-links a:hover{color:var(--accent)}
.not-found{max-width:560px;padding:60px 0}
.not-found h1{font-family:var(--font-display);font-size:2.4rem;margin:0 0 10px}

@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes heroIn{from{transform:scale(1.06);opacity:.4}to{transform:scale(1);opacity:.78}}

@media (max-width:1100px){
  .brand-sub{display:none}
  .search-box{width:min(280px,30vw)}
}

@media (max-width:900px){
  :root{--header-h:62px}
  .layout{grid-template-columns:1fr}
  .main{padding:24px 18px 70px}
  #content{max-width:none}
  .menu-toggle{display:flex}
  .brand{margin-right:auto}
  .search-box{order:3;width:100%;margin-left:0}
  .header-inner{flex-wrap:wrap;height:auto;padding:9px 16px 11px;gap:10px 14px}
  .brand-sub{display:none}
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;height:100dvh;width:min(320px,86vw);z-index:60;
    background:var(--bg);transform:translateX(-102%);
    transition:transform .28s var(--ease-out);
    padding-top:18px;box-shadow:0 0 40px rgba(0,0,0,.25);
  }
  .sidebar.open{transform:none}
  .sidebar-overlay{display:block;position:fixed;inset:0;z-index:55;background:rgba(10,14,12,.5);opacity:0;pointer-events:none;transition:opacity .25s var(--ease-out)}
  .sidebar-overlay[hidden]{display:none}
  .sidebar-overlay.visible{opacity:1;pointer-events:auto}
  .app-footer{margin-left:0}
  .home-hero{min-height:380px;border-radius:12px;padding:28px 24px}
  .home-hero::after{background:linear-gradient(180deg,rgba(12,17,14,.55) 0%,rgba(12,17,14,.88) 72%)}
  .toc ol{columns:1}
}

@media (max-width:600px){
  html{font-size:16.5px}
  .article-body{max-width:none}
  .article h1{font-size:1.95rem}
  .home-hero{min-height:440px}
  .home-hero h1{font-size:2.15rem}
  .section-head h2{font-size:1.32rem}
  .section-head span{display:none}
  .article-index a{grid-template-columns:minmax(0,1fr) 20px;padding:12px 0}
  .idx-desc{font-size:.85rem}
  .search-box input{height:36px}
  .header-inner{padding-bottom:10px}
  .toc{padding:15px 16px}
  thead th,tbody td,tbody th{padding:9px 10px;font-size:.83rem}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .home-hero img{transform:none;opacity:.78}
}