/* ==========================================================================
   2Click Revenue · Wiedza: lista kart (raporty, artykuły) + szablon artykułu
   Prefiksy: .w-* (lista), .art-* (artykuł). Scope: body.page-wiedza / body.page-art
   ========================================================================== */
/* ---------- filtry ---------- */
.w-filters{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 32px}
.w-filters .xc{border:0;font-family:inherit;height:34px;padding:0 14px;font-size:12px;cursor:pointer;background:#fff;box-shadow:inset 0 0 0 1px var(--line);color:var(--ink-2);transition:background .25s,color .25s,box-shadow .25s}
.w-filters .xc:hover{box-shadow:inset 0 0 0 1px var(--line-strong)}
.w-filters .xc.is-on{background:var(--ink);color:#fff;box-shadow:none}
.w-filters .xc .n{opacity:.55;font-weight:400}
/* ---------- siatka kart ---------- */
.w-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
.w-card{display:flex;flex-direction:column;background:#fff;border-radius:16px;box-shadow:inset 0 0 0 1px var(--line);overflow:hidden;transition:transform .35s var(--ease-expo),box-shadow .35s;color:var(--ink)}
.w-card:hover{transform:translateY(-4px);box-shadow:inset 0 0 0 1px var(--line-strong),0 24px 48px -24px rgba(30,38,46,.22)}
.w-card.is-hidden{display:none}
.w-card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper-3)}
.w-card__media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s var(--ease-expo)}
.w-card:hover .w-card__media img{transform:scale(1.03)}
.w-card__type{position:absolute;left:16px;top:16px;z-index:2;display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:rgba(255,255,255,.86);backdrop-filter:blur(8px);font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink)}
.w-card__body{display:flex;flex-direction:column;gap:10px;padding:28px 28px 24px;flex:1}
.w-card__body .heading-s{margin:0;font-size:22px;line-height:29px}
.w-card__body p{margin:0;color:var(--ink-2)}
.w-card__foot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.w-card__foot .go{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--ink)}
.w-card__foot .go .lucide{width:16px;height:16px;transition:transform .3s var(--ease-expo)}
.w-card:hover .w-card__foot .go .lucide{transform:translateX(4px)}
.w-card__foot .meta{text-transform:none;letter-spacing:0;font-size:13px;color:var(--muted);white-space:nowrap}
.w-empty{padding:40px;text-align:center;color:var(--muted);display:none}
.w-empty.is-on{display:block}
/* ---------- artykuł ---------- */
.art-hero{padding:24px 0 0}
.art-hero img{width:100%;height:auto;aspect-ratio:18/5;object-fit:cover;border-radius:16px;display:block;background:var(--paper-3)}
.art-wrap{padding:40px 0 64px}
.art-head{padding:0 0 36px}
.art-crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--muted);margin:0 0 20px}
.art-crumbs a{color:var(--muted)}
.art-crumbs a:hover{color:var(--ink)}
.art-crumbs .sep{opacity:.5}
.art-head .eyebrow{margin-bottom:14px}
.art-head h1{margin:0 0 20px}
.art-head .lead{margin:0 0 24px}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px 28px;padding-top:24px;border-top:1px solid var(--line)}
.art-who{display:flex;align-items:center;gap:12px;font-size:14px;line-height:20px}
.art-who .av{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;font-size:12px;font-weight:600;letter-spacing:.04em}
.art-who b{display:block;font-weight:500;color:var(--ink)}
.art-who span{color:var(--muted)}
.art-meta .dates{font-size:13px;color:var(--muted)}
.art-share{margin-left:auto;display:flex;gap:8px}
.art-share a,.art-share button{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#fff;box-shadow:inset 0 0 0 1px var(--line);color:var(--ink-2);border:0;cursor:pointer;transition:background .25s,color .25s}
.art-share a:hover,.art-share button:hover{background:var(--ink);color:#fff}
.art-share .lucide{width:16px;height:16px}
/* układ dwukolumnowy */
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 440px;column-gap:112px;align-items:start}
.art-main{min-width:0}
.art-body{font-size:18px;line-height:1.7;color:var(--ink)}
.art-body > p{margin:0 0 22px}
.art-body h2{font-size:30px;line-height:38px;font-weight:400;letter-spacing:-.01em;margin:48px 0 18px;scroll-margin-top:120px}
.art-body h3{font-size:20px;line-height:28px;font-weight:500;margin:32px 0 12px}
.art-body ul{margin:0 0 22px;padding-left:22px}
.art-body li{margin:0 0 8px}
.art-body a{color:var(--accent-text);text-decoration:underline;text-underline-offset:3px}
.art-body strong{font-weight:600}
.art-key{display:flex;flex-direction:column;gap:12px;padding:28px 32px;border-radius:16px;background:var(--paper-2);margin:0 0 36px}
.art-key .meta{color:var(--muted)}
.art-key ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}
.art-key li{display:flex;gap:12px;align-items:flex-start;font-size:16px;line-height:25px;margin:0}
.art-key li .lucide{width:18px;height:18px;flex:none;margin-top:3px;color:var(--accent-text)}
.art-figure{margin:32px 0 36px}
.art-figure img{width:100%;height:auto;height:auto;border-radius:16px;display:block;aspect-ratio:16/9;object-fit:cover;background:var(--paper-3)}
.art-figure figcaption{margin-top:12px;font-size:13px;line-height:19px;color:var(--muted)}
.art-quote{margin:36px 0;padding:8px 0 8px 28px;border-left:2px solid var(--accent);font-size:22px;line-height:32px;font-weight:300;letter-spacing:-.01em;color:var(--ink)}
.art-quote cite{display:block;margin-top:12px;font-size:13px;line-height:19px;font-style:normal;color:var(--muted)}
.art-ledger{margin:28px 0 36px;border-radius:16px;overflow:hidden;box-shadow:inset 0 0 0 1px var(--line)}
.art-ledger .row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:24px;padding:16px 24px;border-top:1px solid var(--line);font-size:15px;line-height:23px}
.art-ledger .row:first-child{border-top:0;background:var(--paper-2);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:500}
.art-ledger .row b{font-weight:500}
.art-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;margin:40px 0;padding:28px 32px;border-radius:16px;background:var(--ink);color:#fff}
.art-cta b{display:block;font-size:20px;line-height:28px;font-weight:400;margin-bottom:4px}
.art-cta span{font-size:14px;line-height:21px;color:rgba(255,255,255,.7)}
.art-cta .btn{flex:none}
.art-faq{margin-top:48px;padding-top:12px}
.art-faq h2{margin-top:0}
.art-faq .q{padding:20px 0;border-top:1px solid var(--line)}
.art-faq .q:last-child{border-bottom:1px solid var(--line)}
.art-faq .q b{display:block;font-size:17px;line-height:25px;font-weight:500;margin-bottom:8px}
.art-faq .q p{margin:0;font-size:16px;line-height:25px;color:var(--ink-2)}
.art-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:36px}
/* kolumna boczna */
.art-side{position:sticky;top:120px;display:flex;flex-direction:column;gap:16px}
.art-box{padding:24px;border-radius:16px;background:#fff;box-shadow:inset 0 0 0 1px var(--line)}
.art-box .meta{display:block;margin-bottom:14px;color:var(--muted)}
.art-toc{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.art-toc a{display:block;padding:8px 12px;border-radius:10px;font-size:14px;line-height:20px;color:var(--ink-2);transition:background .25s,color .25s}
.art-toc a:hover{background:var(--paper-2);color:var(--ink)}
.art-toc a.is-on{background:var(--accent-tint);color:var(--accent-text)}
.art-author{display:flex;flex-direction:column;gap:12px}
.art-author .art-who .av{width:48px;height:48px}
.art-author p{margin:0;font-size:14px;line-height:21px;color:var(--ink-2)}
.art-author .link{font-size:14px}
.art-rel{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.art-rel li a{display:grid;grid-template-columns:88px minmax(0,1fr);gap:12px;align-items:center;color:var(--ink)}
.art-rel img{width:88px;height:auto;aspect-ratio:88/60;object-fit:cover;border-radius:8px;display:block;background:var(--paper-3)}
.art-rel b{display:block;font-size:14px;line-height:20px;font-weight:500}
.art-rel span{display:block;font-size:12px;line-height:17px;color:var(--muted);margin-top:3px}
.art-rel li a:hover b{color:var(--accent-text)}
/* powiązane tematy */
.art-topics{padding:64px 0 96px;border-top:1px solid var(--line)}
.art-topics .chapter{margin-bottom:32px}
.art-topics .w-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.art-topics .w-card__body{padding:22px 22px 20px}
.art-topics .w-card__body .heading-s{font-size:19px;line-height:26px}
/* ---------- RWD ---------- */
@media (max-width:1100px){
  .w-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .art-layout{grid-template-columns:1fr;row-gap:40px}
  .art-side{position:static;flex-direction:row;flex-wrap:wrap}
  .art-side .art-box{flex:1 1 280px}
  .art-topics .w-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:700px){
  .w-filters{margin:4px -16px 20px;padding:0 16px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;mask-image:linear-gradient(90deg,#000 calc(100% - 40px),transparent)}
  .w-filters::-webkit-scrollbar{display:none}
  .w-filters .xc{flex:none}
  .w-grid{grid-template-columns:1fr;gap:16px}
  .w-card__body{padding:20px 20px 18px}
  .w-card__body .heading-s{font-size:19px;line-height:26px}
  .art-hero{padding-top:12px}
  .art-hero img{aspect-ratio:16/10;border-radius:12px}
  .art-wrap{padding:20px 0 40px}
  .art-head{padding:0 0 20px}
  .art-head h1{font-size:30px;line-height:36px}
  .art-share{margin-left:0}
  .art-body{font-size:16px;line-height:1.65}
  .art-body h2{font-size:24px;line-height:31px;margin:36px 0 14px}
  .art-key{padding:20px}
  .art-quote{font-size:19px;line-height:28px;padding-left:18px}
  .art-ledger .row{grid-template-columns:1fr;gap:6px;padding:14px 16px}
  .art-cta{padding:22px}
  .art-side{flex-direction:column}
  .art-topics{padding:40px 0 64px}
  .art-topics .w-grid{grid-template-columns:1fr}
}

/* definicje lokalne (gdy brak w styles.css) */
.page-art .section-tight,.page-wiedza .section-tight{padding:0}
.art-cta .btn--light{background:#fff;color:var(--ink)}
.art-cta .btn--light:hover{background:var(--paper-2)}