/* BLOG — page-specific styles */
/* ── blog / resources page ─────────────────────────── */
.nav-links a.active{color:#fff;position:relative}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;
  height:2px;border-radius:2px;background:var(--grad)}
.hero.blog{padding:158px 0 72px}
.hero.blog .hero-in{max-width:760px}
/* filter bar */
.filterbar{position:sticky;top:0;z-index:30;background:rgba(247,248,253,.88);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.filterbar .wrap{display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;padding-top:13px;padding-bottom:13px}
.fchips{display:flex;gap:8px;flex-wrap:wrap}
.fchip{font-family:var(--display);font-weight:500;font-size:13px;color:var(--ink-soft);
  border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;
  cursor:pointer;transition:all .2s}
.fchip:hover{color:var(--ink);transform:translateY(-1px)}
.fchip.active{color:#fff;border-color:transparent;background:var(--grad);
  box-shadow:0 6px 16px rgba(124,77,225,.28)}
.art-count{font-family:var(--mono);font-size:12px;color:var(--ink-mute);white-space:nowrap}
/* ── featured article ── */
.featured-wrap{padding-top:52px}
.feat-art{display:grid;grid-template-columns:1.05fr .95fr;gap:0;background:#fff;
  border:1px solid var(--line);border-radius:24px;overflow:hidden;
  box-shadow:0 18px 50px rgba(46,60,120,.09);transition:box-shadow .3s}
.feat-art:hover{box-shadow:0 28px 70px rgba(46,60,120,.15)}
.feat-visual{position:relative;min-height:340px;display:flex;align-items:center;
  justify-content:center;overflow:hidden}
.feat-visual-inner{width:100%;height:100%;display:flex;align-items:center;justify-content:center;
  position:relative;padding:32px}
.feat-chip-set{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.feat-chip-big{font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:.5px;
  color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:12px;padding:12px 16px;
  backdrop-filter:blur(8px);background:rgba(255,255,255,.12)}
.feat-stat{position:absolute;bottom:24px;right:20px;background:#fff;border-radius:12px;
  padding:12px 16px;box-shadow:0 12px 28px rgba(0,0,0,.18)}
.feat-stat .n{font-family:var(--display);font-weight:700;font-size:22px;letter-spacing:-.3px;
  background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.feat-stat .l{font-size:10.5px;color:var(--ink-mute)}
.feat-badge{position:absolute;top:20px;left:20px;font-family:var(--mono);font-size:9.5px;
  letter-spacing:1.5px;text-transform:uppercase;color:#fff;background:var(--grad);
  border-radius:999px;padding:5px 12px;box-shadow:0 6px 16px rgba(124,77,225,.4)}
.feat-body{padding:36px 36px 32px;display:flex;flex-direction:column}
.feat-meta{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.art-cat{font-family:var(--mono);font-size:10.5px;letter-spacing:1.2px;text-transform:uppercase;
  border-radius:999px;padding:4px 10px;color:#fff}
.art-read{font-family:var(--mono);font-size:11.5px;color:var(--ink-mute)}
.feat-title{font-family:var(--display);font-weight:700;font-size:clamp(20px,2.2vw,28px);
  letter-spacing:-.4px;line-height:1.2;margin-bottom:14px;color:var(--ink)}
.feat-excerpt{font-size:15px;color:var(--ink-soft);line-height:1.65;flex:1;margin-bottom:24px}
.feat-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:24px}
.feat-tags span{font-family:var(--mono);font-size:11px;color:var(--ink-soft);
  background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:4px 10px}
.feat-cta{display:inline-flex;align-items:center;gap:8px;font-family:var(--display);
  font-weight:600;font-size:15px;color:var(--purple)}
.feat-cta .arw{display:inline-block;transition:transform .2s}
.feat-art:hover .feat-cta .arw{transform:translate(4px,-4px)}
/* ── article grid ── */
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding-top:44px}
.art-card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;
  display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s;cursor:pointer}
.art-card:hover{transform:translateY(-5px);box-shadow:0 22px 52px rgba(46,60,120,.12)}
.art-card.hide{display:none}
.art-thumb{height:168px;display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;padding:24px}
.art-body{padding:22px 22px 18px;flex:1;display:flex;flex-direction:column}
.art-meta{display:flex;align-items:center;gap:9px;margin-bottom:13px}
.art-title{font-family:var(--display);font-weight:700;font-size:17px;letter-spacing:-.3px;
  line-height:1.3;margin-bottom:10px;color:var(--ink);flex:1}
.art-excerpt{font-size:13.5px;color:var(--ink-soft);line-height:1.6;margin-bottom:16px}
.art-foot{display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding-top:14px;margin-top:auto}
.art-date{font-family:var(--mono);font-size:11px;color:var(--ink-mute)}
.art-link{font-family:var(--display);font-weight:600;font-size:13px;color:var(--purple)}
/* abstract visual elements in thumbnails */
.thumb-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;width:100%;max-width:180px}
.thumb-grid-cell{height:28px;border-radius:6px;background:rgba(255,255,255,.18)}
.thumb-bar-set{display:flex;align-items:flex-end;gap:6px;height:80px}
.thumb-bar{border-radius:4px 4px 0 0;width:18px;background:rgba(255,255,255,.22)}
.thumb-code{font-family:var(--mono);font-size:10px;color:rgba(255,255,255,.7);
  text-align:left;line-height:1.7;white-space:pre}
.thumb-funnel{display:flex;flex-direction:column;align-items:center;gap:4px}
.thumb-funnel span{border-radius:4px;background:rgba(255,255,255,.2);height:14px}
.thumb-ring{border-radius:50%;border:3px solid rgba(255,255,255,.35);display:flex;
  align-items:center;justify-content:center}
.thumb-icon{font-size:28px;opacity:.75;filter:grayscale(30%)}
.thumb-layers{display:flex;flex-direction:column;gap:5px;width:100%;max-width:160px}
.thumb-layer{border-radius:6px;background:rgba(255,255,255,.2);height:18px}
/* ── email capture band ── */
.capture-band{background:var(--ink);color:#fff;border-radius:22px;padding:48px 52px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden}
.capture-band::before{content:"";position:absolute;width:400px;height:400px;border-radius:50%;
  right:-100px;top:-150px;background:radial-gradient(circle,rgba(139,92,246,.35),transparent 65%);
  pointer-events:none}
.capture-copy h2{font-family:var(--display);font-weight:700;font-size:clamp(20px,2.6vw,28px);
  letter-spacing:-.4px;margin-bottom:8px}
.capture-copy p{font-size:15px;color:rgba(255,255,255,.72);max-width:400px}
.capture-form{display:flex;gap:10px;flex-wrap:wrap;position:relative;z-index:1}
.capture-input{font-family:var(--body);font-size:14.5px;color:var(--ink);background:#fff;
  border:0;border-radius:11px;padding:13px 16px;width:280px;max-width:100%}
.capture-input::placeholder{color:var(--ink-mute)}
.capture-input:focus{outline:2px solid var(--purple)}
.capture-btn{white-space:nowrap;border:0;padding:13px 22px}
.capture-ok{display:none;align-items:center;gap:10px;font-family:var(--display);font-weight:600;
  font-size:15px;color:#fff}
.capture-ok svg{width:22px;height:22px;stroke:#3ec98a;fill:none;stroke-width:2.5}
.capture-ok.show{display:flex}
/* ── topic cards ── */
.topics-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.topic-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 16px;
  text-align:center;cursor:pointer;transition:all .25s}
.topic-card:hover{transform:translateY(-4px);box-shadow:0 14px 36px rgba(46,60,120,.1);
  border-color:var(--purple)}
.topic-card .ti{width:44px;height:44px;border-radius:12px;background:var(--grad-soft);
  display:grid;place-items:center;margin:0 auto 12px}
.topic-card .ti svg{width:22px;height:22px;stroke:var(--purple);fill:none;stroke-width:1.8}
.topic-card .tn{font-family:var(--display);font-weight:600;font-size:13.5px;color:var(--ink);
  margin-bottom:4px}
.topic-card .tc{font-family:var(--mono);font-size:11px;color:var(--ink-mute)}
@media (max-width:1080px){.art-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:680px){
  .feat-art{grid-template-columns:1fr}
  .feat-visual{min-height:220px}
  .topics-grid{grid-template-columns:repeat(3,1fr)}
  .hero.blog{padding:126px 0 56px}
  .art-grid{grid-template-columns:1fr}
  .feat-body{padding:24px 22px 22px}
  .capture-band{padding:32px 26px}
  .capture-input{width:100%}
  .topics-grid{grid-template-columns:repeat(2,1fr)}
}