/* ============================================================
   Warstwa 3D - design system
   Light industrial: grafit, bezpieczna pomarańcz, stalowy błękit.
   Fonty: Bricolage Grotesque (display) + IBM Plex Sans (tekst).
   ============================================================ */

:root{
  --bg:#f2f3f0;
  --surface:#ffffff;
  --surface-2:#e9ece7;
  --surface-3:#dfe4de;
  --ink:#14181a;
  --ink-soft:#394347;
  --muted:#5b676c;
  --accent:#b8401a;
  --accent-strong:#8f2f10;
  --accent-soft:#f3e4dd;
  --steel:#1d5d78;
  --border:#d7ddd6;
  --border-strong:#b9c3bc;
  --hero-bg:#14181a;
  --hero-ink:#f4f6f3;
  --hero-muted:#b9c4be;
  --hero-line:#2e383c;
  --info-bg:#e9eff1;
  --tip-bg:#e8efe7;
  --warn-bg:#f5e7e1;
  --code-bg:#e6eae5;
  --shadow:0 1px 2px rgba(20,24,26,.05);

  --font-display:'Bricolage Grotesque','Trebuchet MS',sans-serif;
  --font-body:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-mono:ui-monospace,'SFMono-Regular',Menlo,Consolas,monospace;

  --sidebar-w:304px;
  --header-h:66px;
  --content-max:1120px;
  --ease-out:cubic-bezier(.23,1,.32,1);
  --ease-in-out:cubic-bezier(.77,0,.175,1);
}

@media (prefers-color-scheme: dark){
  :root{
    --bg:#101416;
    --surface:#171d20;
    --surface-2:#1e262a;
    --surface-3:#263136;
    --ink:#edf1ee;
    --ink-soft:#cdd6d2;
    --muted:#a3afab;
    --accent:#ff7a45;
    --accent-strong:#ff9a72;
    --accent-soft:#2a1c16;
    --steel:#7cc7e2;
    --border:#2a3438;
    --border-strong:#3c484d;
    --hero-bg:#0c1012;
    --hero-ink:#f4f6f3;
    --hero-muted:#aab5af;
    --hero-line:#283236;
    --info-bg:#16262b;
    --tip-bg:#17251b;
    --warn-bg:#2a1a14;
    --code-bg:#222c30;
    --shadow:0 1px 2px rgba(0,0,0,.25);
  }
}

*,*::before,*::after{box-sizing:border-box}
html{font-size:18px;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden}
::selection{background:var(--accent);color:#fff}
a{color:var(--steel);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent)}
button,input{font:inherit}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.12;letter-spacing:-.02em;text-wrap:balance;margin:0}
p{text-wrap:pretty}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:1000;
  background:var(--accent);color:#fff;padding:10px 16px;font-weight:600;
}
.skip-link:focus{left:12px;top:12px;color:#fff}

/* ---------- Header ---------- */
.app-header{
  position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:100;
  background:var(--surface);border-bottom:1px solid var(--border);
}
.header-inner{
  height:100%;display:flex;align-items:center;gap:22px;
  padding:0 28px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);text-decoration:none;flex:0 0 auto;
}
.brand:hover{color:var(--ink)}
.brand-mark{width:26px;height:26px;color:var(--accent);display:inline-flex}
.brand-mark svg{width:100%;height:100%;fill:none}
.brand-text{
  font-family:var(--font-display);font-weight:700;font-size:1.18rem;
  letter-spacing:-.02em;white-space:nowrap;
}
.brand-text em{font-style:normal;color:var(--accent)}
.search-box{position:relative;margin-left:auto;width:min(420px,42vw)}
.search-icon{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  width:17px;height:17px;color:var(--muted);pointer-events:none;
}
#searchInput{
  width:100%;height:40px;padding:0 14px 0 38px;
  background:var(--bg);color:var(--ink);
  border:1px solid var(--border);border-radius:4px;
  font-size:.9rem;transition:border-color .16s ease,background .16s ease;
}
#searchInput::placeholder{color:var(--muted)}
#searchInput:focus{outline:none;border-color:var(--accent);background:var(--surface)}
.search-results{
  position:absolute;top:calc(100% + 7px);left:0;right:0;z-index:120;
  background:var(--surface);border:1px solid var(--border-strong);
  max-height:62vh;overflow:auto;border-radius:4px;
}
.search-results a{
  display:block;padding:11px 15px;border-bottom:1px solid var(--border);
  color:var(--ink);text-decoration:none;font-size:.9rem;line-height:1.4;
}
.search-results a:last-child{border-bottom:0}
.search-results a:hover{background:var(--surface-2);color:var(--accent)}
.search-results strong{font-weight:600}
.search-results span{color:var(--muted);font-size:.8rem}
.search-empty{padding:14px 15px;color:var(--muted);font-size:.9rem}

.menu-toggle{
  display:none;width:42px;height:42px;padding:0;border:1px solid var(--border);
  background:var(--surface);border-radius:4px;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);transition:transform .2s var(--ease-out),opacity .2s ease}
.menu-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Layout ---------- */
.layout{padding-top:var(--header-h)}
.sidebar{
  position:fixed;top:var(--header-h);left:0;bottom:0;width:var(--sidebar-w);
  background:var(--surface);border-right:1px solid var(--border);
  overflow-y:auto;padding:26px 18px 34px;z-index:90;
  scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent;
}
.sidebar::-webkit-scrollbar{width:8px}
.sidebar::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:4px}
.nav-home{
  display:flex;align-items:center;gap:9px;padding:8px 10px;margin-bottom:14px;
  font-family:var(--font-display);font-weight:600;font-size:.95rem;
  color:var(--ink);text-decoration:none;border-radius:4px;
}
.nav-home:hover{background:var(--surface-2);color:var(--accent)}
.nav-home.active{background:var(--surface-2);color:var(--ink)}
.nav-home.active svg{color:var(--accent)}
.nav-home svg{width:16px;height:16px;flex:0 0 auto}
.nav-section{margin-top:22px}
.nav-section-title{
  font-size:.76rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;
  color:var(--muted);padding:0 10px;margin-bottom:7px;
}
.sidebar-link{
  position:relative;display:block;padding:7px 10px;border-radius:4px;
  font-size:.9rem;line-height:1.38;color:var(--ink-soft);text-decoration:none;
  transition:background .16s ease,color .16s ease;
}
.sidebar-link:hover{background:var(--surface-2);color:var(--ink)}
.sidebar-link.active{background:var(--surface-2);color:var(--ink);font-weight:600}
.sidebar-link.active::before{content:'';position:absolute;left:2px;top:50%;width:5px;height:5px;border-radius:50%;background:var(--accent);transform:translateY(-50%)}
.sidebar-foot{padding:30px 10px 0;margin-top:26px;border-top:1px solid var(--border)}
.sidebar-foot-line{display:block;width:28px;height:2px;background:var(--accent);margin-bottom:12px}
.sidebar-foot p{margin:0;font-size:.8rem;line-height:1.55;color:var(--muted)}
.sidebar-overlay{position:fixed;inset:var(--header-h) 0 0 0;background:rgba(12,16,18,.52);z-index:80}

.main{margin-left:var(--sidebar-w);min-height:calc(100vh - var(--header-h))}

/* ---------- Home hero ---------- */
.home-wrap{width:100%}
.home-hero{
  display:grid;grid-template-columns:1.1fr .9fr;align-items:center;
  gap:clamp(28px,4vw,64px);
  min-height:500px;padding:clamp(44px,5.6vw,76px) clamp(28px,5vw,72px);
  background:var(--hero-bg);color:var(--hero-ink);
  border-bottom:1px solid var(--hero-line);
}
.hero-brand{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(3rem,6.2vw,5.2rem);line-height:.94;
  letter-spacing:-.035em;color:var(--hero-ink);
  margin-bottom:18px;
}
.hero-brand em{font-style:normal;color:#ff8a5c}
.home-hero h1{
  font-size:clamp(1.7rem,2.9vw,2.6rem);
  font-weight:500;letter-spacing:-.018em;line-height:1.14;
  color:var(--hero-muted);max-width:34ch;
}
.home-hero h1 em{font-style:normal;color:#ff8a5c}
.hero-lead{
  margin:22px 0 30px;max-width:48ch;
  font-size:1.02rem;line-height:1.66;color:var(--hero-muted);
}
.hero-cta{
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 20px;background:#e05a2b;color:#14181a;
  font-weight:600;font-size:.94rem;text-decoration:none;border-radius:4px;
  transition:transform .16s var(--ease-out),background .16s ease;
}
.hero-cta svg{width:16px;height:16px;transition:transform .16s var(--ease-out)}
.hero-cta:hover{background:#f06a38;color:#14181a;transform:translateY(-1px)}
.hero-cta:hover svg{transform:translateX(3px)}
.hero-cta:active{transform:scale(.98)}

.hero-visual{position:relative;display:flex;justify-content:center;align-items:flex-end;min-height:390px}
.hero-visual::after{content:'';position:absolute;left:50%;bottom:0;width:min(88%,430px);height:26px;transform:translateX(-50%);background:radial-gradient(ellipse at center,rgba(0,0,0,.5),rgba(0,0,0,0) 70%);filter:blur(6px);pointer-events:none}
.layer-stack{
  position:relative;z-index:1;
  display:flex;flex-direction:column-reverse;align-items:center;
  gap:5px;width:min(100%,460px);padding-bottom:4px;
  filter:drop-shadow(0 22px 34px rgba(0,0,0,.38));
  transform:perspective(1600px) rotateX(7deg);transform-origin:center bottom;
}
.layer-stack span{
  display:block;height:15px;width:var(--w);border-radius:2px;
  background:linear-gradient(90deg,#aebdb6,#e8efe9 52%,#a7b6af);opacity:.97;
  box-shadow:0 1px 0 rgba(255,255,255,.18) inset;
  animation:layerRise .52s var(--ease-out) both;
  animation-delay:calc(var(--i) * 28ms);
}
.layer-stack span:last-child{background:linear-gradient(90deg,#c94a1f,#ff8a5c);height:16px}
@keyframes layerRise{
  from{opacity:0;transform:translateY(14px) scaleX(.86)}
  to{opacity:.97;transform:translateY(0) scaleX(1)}
}

/* ---------- Home body ---------- */
.home-body{max-width:var(--content-max);margin:0 auto;padding:64px 40px 96px}
.start-here{margin-bottom:76px}
.section-label{
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.13em;
  text-transform:uppercase;color:var(--accent);margin-bottom:10px;
}
.start-here h2{font-size:clamp(1.7rem,2.6vw,2.2rem);margin-bottom:10px}
.start-intro{max-width:58ch;margin:0 0 28px;color:var(--ink-soft);font-size:1rem}
.start-list{
  list-style:none;margin:0;padding:0;
  display:grid;grid-template-columns:1fr 1fr;gap:0 46px;
}
.start-list li{border-top:1px solid var(--border-strong)}
.start-link{
  display:grid;grid-template-columns:34px 1fr 18px;gap:10px;align-items:start;
  padding:18px 0;text-decoration:none;color:var(--ink);
}
.start-num{
  font-family:var(--font-mono);font-size:.76rem;color:var(--accent);
  padding-top:4px;letter-spacing:.04em;
}
.start-link strong{display:block;font-family:var(--font-display);font-weight:600;font-size:1.05rem;line-height:1.3}
.start-link small{display:block;margin-top:4px;color:var(--muted);font-size:.86rem;line-height:1.5}
.start-arrow{width:16px;height:16px;margin-top:4px;color:var(--muted);transition:transform .16s var(--ease-out),color .16s ease}
.start-link:hover strong{color:var(--accent)}
.start-link:hover .start-arrow{transform:translateX(3px);color:var(--accent)}

.index-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  margin-bottom:6px;
}
.index-head h2{font-size:clamp(1.55rem,2.4vw,2rem)}
.index-count{font-family:var(--font-mono);font-size:.75rem;color:var(--muted);white-space:nowrap}
.section-index{
  display:grid;grid-template-columns:1fr 1fr;gap:0 64px;
}
.index-group{margin-bottom:42px;break-inside:avoid}
.index-list{list-style:none;margin:0;padding:0}
.index-list li{border-top:1px solid var(--border)}
.index-list a{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:11px 0;color:var(--ink-soft);text-decoration:none;font-size:.94rem;line-height:1.4;
  transition:color .16s ease,padding-left .16s var(--ease-out);
}
.index-list a::after{content:'→';font-size:.8rem;color:var(--border-strong);transition:color .16s ease,transform .16s var(--ease-out)}
.index-list a:hover{color:var(--accent);padding-left:3px}
.index-list a:hover::after{color:var(--accent);transform:translateX(2px)}

/* ---------- Article ---------- */
.article-wrap{max-width:900px;margin:0 auto;padding:42px 40px 96px}
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:7px;
  font-size:.8rem;color:var(--muted);margin-bottom:22px;
}
.breadcrumbs a{color:var(--muted);text-decoration:none}
.breadcrumbs a:hover{color:var(--accent);text-decoration:underline}
.breadcrumbs span{color:var(--border-strong)}
.article-header h1{font-size:clamp(2rem,3.7vw,3.05rem);letter-spacing:-.028em;line-height:1.06;margin-bottom:16px}
.article-lead{
  font-size:1.08rem;line-height:1.68;color:var(--ink-soft);
  max-width:64ch;margin:0 0 22px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;
  padding:14px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.04em;
  text-transform:uppercase;color:var(--muted);
}
.article-meta .meta-section{color:var(--accent)}
.content-article{max-width:720px}
.toc{
  background:var(--surface);border:1px solid var(--border);
  padding:18px 22px;margin:34px 0 38px;border-radius:4px;
}
.toc-title{
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);margin-bottom:8px;
}
.toc ol{margin:0;padding-left:20px}
.toc li{margin:5px 0}
.toc a{color:var(--ink-soft);text-decoration:none;font-size:.93rem;line-height:1.45}
.toc a:hover{color:var(--accent);text-decoration:underline}

.content-article h2{
  font-size:clamp(1.5rem,2.4vw,1.8rem);margin:46px 0 14px;
  padding-top:6px;scroll-margin-top:88px;
}
.content-article h2:first-child{margin-top:0}
.content-article h3{font-size:1.18rem;margin:30px 0 10px;scroll-margin-top:88px}
.content-article p{margin:0 0 19px;font-size:1rem;line-height:1.72}
.content-article ul,.content-article ol{margin:0 0 20px;padding-left:22px}
.content-article li{margin:7px 0;line-height:1.66}
.content-article dl{margin:22px 0 26px}
.content-article dt{
  font-family:var(--font-display);font-weight:600;font-size:1.02rem;
  color:var(--ink);margin-top:18px;padding-top:14px;border-top:1px solid var(--border);
}
.content-article dt:first-child{margin-top:0;padding-top:0;border-top:0}
.content-article dd{margin:5px 0 0;color:var(--ink-soft);line-height:1.66}
.content-article strong{font-weight:600;color:var(--ink)}
.content-article a{color:var(--steel)}
.content-article a:hover{color:var(--accent)}
.content-article blockquote{
  margin:24px 0;padding:4px 0 4px 20px;border-left:2px solid var(--accent);
  color:var(--ink-soft);font-size:1.02rem;
}
.content-article code{
  font-family:var(--font-mono);font-size:.86em;background:var(--code-bg);
  padding:2px 5px;border-radius:3px;
}
.content-article hr{border:0;border-top:1px solid var(--border);margin:34px 0}

.table-responsive{overflow-x:auto;margin:22px 0 26px;border:1px solid var(--border);border-radius:4px}
.content-article table{width:100%;border-collapse:collapse;font-size:.88rem;line-height:1.5;min-width:520px}
.content-article th{
  text-align:left;padding:11px 13px;background:var(--surface-2);
  font-weight:600;color:var(--ink);border-bottom:1px solid var(--border-strong);
  font-size:.8rem;letter-spacing:.02em;
}
.content-article td{padding:10px 13px;border-bottom:1px solid var(--border);vertical-align:top;color:var(--ink-soft)}
.content-article tr:last-child td{border-bottom:0}
.content-article tbody tr:hover{background:var(--surface-2)}

.info-box,.tip-box,.warning-box{
  margin:24px 0;padding:17px 19px;border-radius:4px;
  border:1px solid var(--border);color:var(--ink);font-size:.95rem;line-height:1.62;
}
.info-box{background:var(--info-bg);border-color:color-mix(in srgb,var(--steel) 26%,var(--border))}
.tip-box{background:var(--tip-bg);border-color:color-mix(in srgb,#4f7a4a 26%,var(--border))}
.warning-box{background:var(--warn-bg);border-color:color-mix(in srgb,var(--accent) 30%,var(--border))}
.info-box p:last-child,.tip-box p:last-child,.warning-box p:last-child{margin-bottom:0}
.info-box strong:first-child,.tip-box strong:first-child,.warning-box strong:first-child{
  display:block;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.1em;
  text-transform:uppercase;margin-bottom:6px;color:var(--ink);
}
.warning-box strong:first-child{color:var(--accent)}

.faq-item{border-top:1px solid var(--border);padding:0}
.faq-item:last-of-type{border-bottom:1px solid var(--border)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:16px 30px 16px 0;position:relative;
  font-family:var(--font-display);font-weight:600;font-size:1.02rem;line-height:1.4;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:'+';position:absolute;right:2px;top:15px;
  font-family:var(--font-body);font-size:1.2rem;color:var(--accent);line-height:1;
}
.faq-item[open] summary::after{content:'-'}
.faq-item summary:hover{color:var(--accent)}
.faq-a{padding:0 22px 17px 0;color:var(--ink-soft);font-size:.96rem;line-height:1.66}
.faq-a p:last-child{margin-bottom:0}

.article-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:24px;
  margin-top:56px;padding-top:22px;border-top:1px solid var(--border-strong);
}
.article-nav a{display:block;color:var(--ink);text-decoration:none;font-family:var(--font-display);font-weight:600;font-size:.98rem;line-height:1.35}
.article-nav a:hover{color:var(--accent)}
.article-nav .nav-label{
  display:block;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--muted);margin-bottom:5px;font-weight:400;
}
.article-nav a:last-child{text-align:right}

/* ---------- Footer ---------- */
.app-footer{background:var(--surface);border-top:1px solid var(--border);padding:42px 40px 34px}
.footer-inner{max-width:var(--content-max);margin:0 auto}
.footer-brand{font-family:var(--font-display);font-weight:700;font-size:1.15rem;margin-bottom:10px}
.footer-brand em{font-style:normal;color:var(--accent)}
.footer-inner p{margin:0 0 9px;color:var(--muted);font-size:.87rem;line-height:1.6;max-width:70ch}
.footer-note{font-size:.8rem !important;color:var(--muted)}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px !important}
.footer-links a{color:var(--ink-soft);text-decoration:none;font-size:.84rem}
.footer-links a:hover{color:var(--accent);text-decoration:underline}
.footer-copy{font-family:var(--font-mono);font-size:.75rem !important;margin-top:18px !important}

/* ---------- Not found ---------- */
.notfound{max-width:720px;margin:0 auto;padding:80px 40px}
.notfound h1{font-size:clamp(2rem,4vw,3rem);margin-bottom:14px}
.notfound p{color:var(--ink-soft);margin-bottom:24px}

/* ---------- Page motion ---------- */
.page-enter{animation:fadeUp .26s var(--ease-out) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}

/* ---------- Breakpoint 980: off-canvas sidebar ---------- */
@media (max-width:980px){
  .menu-toggle{display:flex}
  .header-inner{gap:14px;padding:0 18px}
  .brand-text{font-size:1.05rem}
  .search-box{width:auto;flex:1;max-width:360px}
  .sidebar{
    transform:translateX(-100%);
    transition:transform .28s var(--ease-out);
    width:min(86vw,340px);
    border-right:1px solid var(--border-strong);
  }
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .home-body{padding:52px 26px 80px}
  .article-wrap{padding:34px 26px 80px}
  .app-footer{padding:36px 26px 30px}
  .home-hero{grid-template-columns:1fr;min-height:0;gap:34px}
  .hero-visual{min-height:0;justify-content:flex-start}
  .layer-stack{width:min(100%,360px)}
  .home-hero h1{max-width:16ch}
}

/* ---------- Breakpoint 900: sections stack ---------- */
@media (max-width:900px){
  .start-list,.section-index{grid-template-columns:1fr}
  .start-list{gap:0}
  .index-group{margin-bottom:34px}
  .home-hero{padding:44px 26px 48px}
  .hero-brand{font-size:clamp(2.8rem,7.4vw,4.2rem)}
}

/* ---------- Breakpoint 600: mobile ---------- */
@media (max-width:600px){
  html{font-size:17px}
  .header-inner{padding:0 14px;gap:10px}
  .brand-mark{width:23px;height:23px}
  .brand-text{font-size:.98rem}
  .search-box{max-width:none}
  #searchInput{height:38px;font-size:.86rem;padding-left:34px}
  .search-icon{width:15px;height:15px;left:10px}
  .home-hero{padding:38px 20px 40px;gap:28px}
  .hero-brand{font-size:clamp(2.55rem,12.4vw,3.35rem);margin-bottom:14px}
  .home-hero h1{font-size:clamp(1.4rem,5.4vw,1.65rem);line-height:1.22;max-width:30ch}
  .hero-lead{font-size:.98rem;margin:18px 0 24px}
  .layer-stack{gap:3px}
  .layer-stack span{height:10px}
  .home-body{padding:42px 20px 64px}
  .start-here{margin-bottom:56px}
  .start-link{grid-template-columns:28px 1fr 16px;padding:15px 0}
  .index-list a{font-size:.92rem;padding:10px 0}
  .article-wrap{padding:28px 20px 64px}
  .article-header h1{font-size:clamp(1.8rem,8vw,2.5rem)}
  .article-lead{font-size:1rem}
  .article-meta{font-size:.66rem;gap:6px 14px}
  .toc{padding:15px 17px;margin:26px 0 30px}
  .content-article p{font-size:1rem;line-height:1.7}
  .content-article h2{font-size:1.42rem;margin-top:38px}
  .content-article h3{font-size:1.1rem}
  .article-nav{grid-template-columns:1fr;gap:16px}
  .article-nav a:last-child{text-align:left}
  .app-footer{padding:32px 20px 28px}
  .footer-links{gap:14px}
  .table-responsive{margin-left:-1px;margin-right:-1px}
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .page-enter{animation:none}
  .layer-stack span{animation:none;opacity:.9;transform:none}
}