/* Template CSS: blog — extracted verbatim from locked reference src/generated/what-is-pfas.head.html. Loaded per-page after ns.css. */
/* ---- PFAS explainer: creative hero + editorial (page-scoped) ---- */
.hubhero{position:relative;overflow:hidden;isolation:isolate;padding:150px 0 66px}
.hubhero::before{content:"";position:absolute;inset:-12% -6%;z-index:-1;pointer-events:none;
  background:
    radial-gradient(38% 42% at 12% 18%,rgba(18,62,124,.20),transparent 68%),
    radial-gradient(34% 40% at 88% 84%,rgba(244,196,60,.18),transparent 70%),
    radial-gradient(42% 48% at 80% 8%,rgba(120,162,222,.16),transparent 72%),
    radial-gradient(30% 34% at 26% 90%,rgba(120,162,222,.12),transparent 72%);
  filter:blur(8px);animation:meshdrift 20s ease-in-out infinite alternate}
.hubhero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='46' height='46'%3E%3Cpath d='M23 0L46 23 23 46 0 23z' fill='none' stroke='%23123e7c' stroke-width='1'/%3E%3Ccircle cx='23' cy='23' r='2' fill='%23123e7c'/%3E%3C/svg%3E");background-size:46px 46px}
@media(prefers-reduced-motion:reduce){.hubhero::before{animation:none}}
.hubhero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:center}
.hubhero .breadcrumb{color:var(--muted)}
.hubhero .kicker{color:var(--blue);margin-top:16px;display:block}
.hubhero h1{font-size:clamp(2.6rem,6.4vw,5.4rem);letter-spacing:-.03em;margin:.14em 0 0}
.hubhero .dek{font-size:clamp(1.05rem,1.5vw,1.3rem);max-width:46ch;margin:22px 0 0;color:var(--ink-2)}
.hubhero .metaline{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:22px;font-family:var(--font-body);font-weight:700;text-transform:uppercase;letter-spacing:.12em;font-size:.68rem;color:var(--muted)}
.hubhero .herobyline{display:inline-flex;align-items:center;gap:10px;margin-top:24px;font-size:.86rem;color:var(--ink-2)}
.hubhero .herobyline .av{width:34px;height:34px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-family:var(--font-display);font-weight:800;font-size:.92rem;flex:none}
.hubhero .herobyline b{color:var(--ink)}
/* hero answer/definition card (glass) */
.defcard .kq{font-family:var(--font-body);font-weight:800;text-transform:uppercase;letter-spacing:.14em;font-size:.66rem;color:var(--blue);display:flex;align-items:center;gap:12px;margin-bottom:16px}
.defcard .kq svg{flex:none}
.defcard .def{font-size:1.14rem;line-height:1.62;color:var(--ink);margin:0}
.defcard .def b{color:var(--ink)}
.defcard .where{border-top:1px solid rgba(18,36,63,.14);margin-top:22px;padding-top:20px}
.defcard .where h4{font-family:var(--font-display);font-weight:800;font-size:.95rem;margin:0 0 12px;letter-spacing:-.01em}
.defcard .where ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.defcard .where li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;font-size:.92rem;line-height:1.4;color:var(--ink-2)}
.defcard .where .dot{width:22px;height:22px;border-radius:7px;background:var(--blue);color:var(--accent);font-family:var(--font-display);font-weight:800;font-size:.7rem;display:grid;place-items:center;margin-top:1px}
.defcard .where b{color:var(--ink)}
/* editorial article + sticky sidebar */
.editorial .body h2{font-family:var(--font-display);font-weight:800;font-size:clamp(1.6rem,3.1vw,2.4rem);letter-spacing:-.02em;line-height:1.02;margin:1.7em 0 .5em;scroll-margin-top:96px}
.editorial .body h2:first-child{margin-top:0}
.editorial .body h2 .ix{color:var(--blue);font-size:.78rem;vertical-align:super;margin-right:.45em}
.editorial .body h3{font-family:var(--font-display);font-weight:800;font-size:1.22rem;margin:1.5em 0 .35em;letter-spacing:-.01em}
.editorial .body p{font-size:1.06rem;line-height:1.72;margin:0 0 1.1em}
.editorial .body p.lede{font-size:1.24rem;color:var(--ink-2);line-height:1.5}
.editorial .body a{color:var(--blue);text-decoration:underline;text-underline-offset:2px}
.editorial .body ul{margin:0 0 1.2em;padding-left:1.15em}
.editorial .body li{margin:.4em 0;line-height:1.6}
.editorial .body .tablewrap{margin:22px 0}
.article-aside{display:flex;flex-direction:column;gap:18px;position:sticky;top:96px}
.tocnav h4,.factcard h4{font-family:var(--font-display);font-weight:800;font-size:1rem;margin:0 0 12px;letter-spacing:-.01em}
.tocnav ol{list-style:none;counter-reset:toc;padding:0;margin:0}
.tocnav li{counter-increment:toc}
.tocnav a{display:grid;grid-template-columns:auto 1fr;gap:10px;padding:8px 0;font-size:.9rem;color:var(--ink-2);border-bottom:1px solid var(--line);transition:color .18s}
.tocnav li:last-child a{border-bottom:0}
.tocnav a::before{content:counter(toc,decimal-leading-zero);font-family:var(--font-display);font-weight:800;font-size:.72rem;color:var(--blue)}
.tocnav a:hover{color:var(--blue)}
.factcard{background:var(--blue);color:var(--blue-ink);border:0}
.factcard h4{color:#fff}
.factcard ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.factcard li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;font-size:.9rem;line-height:1.45}
.factcard .n{font-family:var(--font-display);font-weight:800;font-size:1.05rem;color:var(--accent);line-height:1}
.factcard .cta{display:block;margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.2);font-weight:800;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}
/* mini glossary chips */
table.compare .term{font-family:var(--font-display);font-weight:800}
table.compare a.tlink{color:var(--blue);font-weight:700;font-size:.82rem;white-space:nowrap;text-decoration:underline;text-underline-offset:2px}
/* CRO band */
.quickpick{display:grid;grid-template-columns:1.5fr .92fr;border:2px solid var(--ink);border-radius:14px;overflow:hidden;background:var(--white);box-shadow:0 26px 62px -34px rgba(15,39,69,.55)}
.qp-main{padding:34px 36px}
.qp-main .tag{display:inline-block;background:var(--accent);color:var(--accent-ink);font-weight:800;font-size:.66rem;text-transform:uppercase;letter-spacing:.1em;padding:.32em .75em;border-radius:999px;margin-bottom:14px}
.qp-main h3{font-family:var(--font-display);font-weight:800;font-size:clamp(1.45rem,2.6vw,2.1rem);letter-spacing:-.015em;margin:0 0 .4em;line-height:1.04}
.qp-main p{margin:0 0 22px;color:var(--ink-2);font-size:1.02rem;max-width:50ch}
.qp-cta{display:flex;gap:12px;flex-wrap:wrap}
.qp-side{background:var(--blue);color:var(--blue-ink);padding:28px 34px;display:flex;flex-direction:column;justify-content:center}
.qp-side-h{font-size:.66rem;font-weight:800;text-transform:uppercase;letter-spacing:.12em;opacity:.82;margin-bottom:10px}
.qp-side a{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.18);font-family:var(--font-display);font-weight:700;font-size:1.02rem;transition:padding .2s ease}
.qp-side a:last-child{border-bottom:0}
.qp-side a:hover{padding-left:6px}
/* sources glass */
.srclist{font-size:.92rem;color:var(--ink-2)}
.srclist a{color:var(--blue);text-decoration:underline;text-underline-offset:2px}
.sources-band{position:relative;overflow:hidden;background:linear-gradient(180deg,#fbfaf5 0%,#e7eefb 100%)}
.sources-band::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.06;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='46' height='46'%3E%3Cpath d='M23 0L46 23 23 46 0 23z' fill='none' stroke='%23123e7c' stroke-width='1'/%3E%3Ccircle cx='23' cy='23' r='2' fill='%23123e7c'/%3E%3C/svg%3E");background-size:46px 46px}
.sources-band::after{content:"";position:absolute;z-index:0;pointer-events:none;width:52%;height:74%;left:-8%;bottom:-18%;
  background:radial-gradient(closest-side,rgba(18,62,124,.16),transparent 70%);filter:blur(24px)}
.sources-band .container{position:relative;z-index:1}
.glasscard{background:rgba(255,255,255,.5);-webkit-backdrop-filter:blur(14px) saturate(1.3);backdrop-filter:blur(14px) saturate(1.3);
  border:1px solid rgba(255,255,255,.85);border-radius:18px;padding:40px 46px;
  box-shadow:0 22px 54px -26px rgba(18,62,124,.42),inset 0 1px 0 rgba(255,255,255,.7)}
.glasscard h2{font-family:var(--font-display);font-weight:800;font-size:clamp(1.5rem,3vw,2.1rem);margin:0 0 .5em;letter-spacing:-.02em}
.glasscard p{margin:0 0 1em;line-height:1.7}
.glasscard .srclist{list-style:none;padding:0;margin:1.2em 0}
.glasscard .srclist li{margin:.6em 0}
/* ---- infographics ---- */
.infographic{margin:24px 0 30px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(180deg,#fbfaf5,#eaf1fb);padding:22px 24px;box-shadow:0 14px 40px -30px rgba(18,62,124,.5)}
.infographic .ig-title{font-family:var(--font-body);font-weight:800;font-size:.7rem;text-transform:uppercase;letter-spacing:.14em;color:var(--blue);margin:0 0 16px}
.ig-kitchen{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.ig-item{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:20px 16px;text-align:center;box-shadow:0 10px 26px -22px rgba(15,39,69,.45)}
.ig-item svg{width:54px;height:54px;display:block;margin:0 auto 12px}
.ig-item h5{font-family:var(--font-display);font-weight:800;font-size:1rem;margin:0 0 5px;letter-spacing:-.01em}
.ig-item p{font-size:.82rem;color:var(--ink-2);margin:0;line-height:1.4}
.ig-bond{display:grid;grid-template-columns:200px 1fr;gap:26px;align-items:center}
.ig-bond .diagram{width:200px}
.ig-bond .diagram svg{width:100%;height:auto;display:block}
.ig-bond .flow{display:flex;flex-direction:column;gap:12px}
.ig-bond .step{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;font-size:.92rem;color:var(--ink-2);line-height:1.45}
.ig-bond .step b{color:var(--ink)}
.ig-bond .step .dot{width:26px;height:26px;border-radius:8px;background:var(--blue);color:var(--accent);font-family:var(--font-display);font-weight:800;font-size:.82rem;display:grid;place-items:center}
@media(max-width:600px){.ig-kitchen{grid-template-columns:1fr}.ig-bond{grid-template-columns:1fr;gap:14px}.ig-bond .diagram{margin:0 auto}}
@media(max-width:820px){.hubhero{padding-top:120px}.hubhero-grid{grid-template-columns:minmax(0,1fr);gap:30px}.editorial{grid-template-columns:minmax(0,1fr)}.article-aside{position:static}.quickpick{grid-template-columns:minmax(0,1fr)}}
/* a11y/responsive: let the article column shrink and long heading words wrap at narrow widths */
.editorial .body{min-width:0}
.editorial .body h2,.editorial .body h3,.editorial .body p,.editorial .body li{overflow-wrap:break-word}