:root{--bg:#0b0b0b;--panel:#151515;--panel2:#1b1b1b;--line:#292929;--text:#f5f5f6;--muted:#a8adb7;--accent:#f43f5e;--accent2:#fb7185;--max:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.68}a{color:#ffd2dc;text-decoration:none}a:hover{color:#fff}img,iframe{max-width:100%}header.site-header{position:sticky;top:0;z-index:100;background:rgba(13,13,13,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.header-row{max-width:var(--max);margin:auto;padding:13px 20px;display:flex;align-items:center;gap:18px}.logo{font-size:22px;font-weight:850;color:#fff;letter-spacing:-.5px;white-space:nowrap}.logo span{color:var(--accent)}.menu-toggle{display:none}.menu-button{display:none;margin-left:auto;border:1px solid var(--line);border-radius:9px;padding:8px 11px;color:#fff;background:var(--panel);font-weight:700;cursor:pointer}.site-nav{margin-left:auto;display:flex;align-items:center;gap:4px}.site-nav>a,.site-nav details>summary{list-style:none;color:#e8e8eb;font-size:14px;font-weight:700;padding:8px 10px;border-radius:8px;cursor:pointer}.site-nav>a:hover,.site-nav details>summary:hover{background:var(--panel2)}.site-nav details{position:relative}.site-nav details>summary::-webkit-details-marker{display:none}.dropdown{position:absolute;right:0;top:42px;width:min(680px,90vw);background:#111;border:1px solid var(--line);box-shadow:0 18px 50px rgba(0,0,0,.45);border-radius:12px;padding:12px;display:grid;grid-template-columns:repeat(3,1fr);gap:4px}.dropdown a{padding:9px 10px;border-radius:7px;color:#dedee3;font-size:14px}.dropdown a:hover{background:var(--panel2);color:#fff}.age-note{border-top:1px solid #202020;background:#0f0f0f;color:var(--muted);font-size:12px;text-align:center;padding:5px 20px}.wrap,main{max-width:var(--max);margin:auto;padding:28px 20px 58px}.narrow{max-width:820px}.breadcrumbs{display:flex;flex-wrap:wrap;gap:7px;color:var(--muted);font-size:13px;margin:0 0 22px}.breadcrumbs a{color:#c8cbd1}.breadcrumbs span[aria-current]{color:#fff}.breadcrumbs i{font-style:normal;color:#666}h1{font-size:clamp(28px,4.8vw,44px);line-height:1.14;letter-spacing:-.7px;margin:0 0 13px}h2{font-size:clamp(21px,3vw,28px);line-height:1.25;margin:36px 0 12px}h3{font-size:18px;line-height:1.35;margin:25px 0 9px}.lead{font-size:18px;color:var(--muted);max-width:800px}.content{color:#dadce1}.content p{margin:0 0 16px}.content ul,.content ol{margin:10px 0 18px;padding-left:24px}.content li{margin:6px 0}.cta,.button{display:inline-block;background:var(--accent);color:#fff!important;font-weight:800;padding:13px 22px;border-radius:10px}.cta:hover,.button:hover{background:#e11d48}.hero-cta{text-align:center;margin:22px 0}.iframe-box{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:12px;margin:25px 0;overflow:hidden}.section{margin:46px 0 28px}.grid,.cat-grid,.benefits,.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.cat-card,.card,.benefit,.related-card{display:block;background:var(--panel);border:1px solid var(--line);border-radius:11px;padding:17px;color:#fff}.cat-card:hover,.card:hover,.related-card:hover{border-color:#444;background:#191919}.cat-card h3,.card h3,.related-card h3{margin:0 0 5px;font-size:16px}.cat-card p,.card p,.related-card p,.benefit{color:var(--muted);font-size:14px;margin:0}.related{margin-top:42px;padding-top:28px;border-top:1px solid var(--line)}.related h2{margin-top:0}.callout{background:linear-gradient(135deg,#191919,#131313);border:1px solid var(--line);border-left:3px solid var(--accent);padding:18px;border-radius:10px;margin:22px 0}.guide-meta{font-size:13px;color:var(--muted);margin:10px 0 25px}.legal-box{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:24px}.legal-box h1{font-size:34px}.site-footer{border-top:1px solid var(--line);background:#0d0d0d}.footer-inner{max-width:var(--max);margin:auto;padding:34px 20px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}.footer-title{font-weight:800;margin-bottom:9px}.footer-links{display:grid;gap:6px}.footer-links a{color:var(--muted);font-size:14px}.footer-links a:hover{color:#fff}.footer-copy{border-top:1px solid #202020;margin-top:26px;padding-top:18px;color:#858a93;font-size:12px}.sitemap-list{columns:2;column-gap:32px}.sitemap-list li{break-inside:avoid;margin:7px 0}.not-found{text-align:center;max-width:700px;margin:60px auto}.not-found .code{font-size:80px;font-weight:900;color:var(--accent);line-height:1}
@media(max-width:820px){.menu-button{display:block}.site-nav{display:none;position:absolute;left:0;right:0;top:58px;background:#101010;border-bottom:1px solid var(--line);padding:10px 18px 16px;flex-direction:column;align-items:stretch}.menu-toggle:checked~.site-nav{display:flex}.site-nav>a,.site-nav details>summary{padding:10px}.site-nav details{position:static}.dropdown{position:static;width:100%;grid-template-columns:repeat(2,1fr);box-shadow:none;margin-top:5px}.grid,.cat-grid,.benefits,.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:1fr 1fr}.footer-about{grid-column:1/-1}}
@media(max-width:520px){.header-row{padding:11px 15px}.logo{font-size:20px}.wrap,main{padding:22px 16px 46px}.grid,.cat-grid,.benefits,.related-grid{grid-template-columns:1fr}.dropdown{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-about{grid-column:auto}.sitemap-list{columns:1}.legal-box{padding:18px}}

/* Phase B editorial authority components */
.section-intro{max-width:860px;color:var(--muted);font-size:17px}.info-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:18px 0 24px}.info-card{background:var(--panel);border:1px solid var(--line);border-radius:11px;padding:17px}.info-card h3{margin:0 0 7px;font-size:16px}.info-card p{margin:0;color:var(--muted);font-size:14px}.content a{text-decoration:underline;text-decoration-color:#5a3540;text-underline-offset:3px}.content strong{color:#fff}@media(max-width:820px){.info-grid{grid-template-columns:1fr}}

.evidence-note{margin:24px 0;padding:16px 18px;border-left:4px solid var(--accent);background:rgba(255,255,255,.04);color:var(--muted);font-size:.95rem}.source-line{font-size:.92rem;color:var(--muted);padding:10px 14px;background:rgba(255,255,255,.035);border-radius:8px}.source-line a,.evidence-note a{color:var(--accent)}

/* Phase D knowledge graph and hub components */
.hub-link{font-weight:800!important;color:#fff!important;border-bottom:1px solid var(--line);margin-bottom:5px}.hub-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.hub-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:19px;display:flex;flex-direction:column;min-height:190px;color:#fff}.hub-card:hover{border-color:#4b4b4b;background:#191919}.hub-card h3{margin:7px 0 8px}.hub-card p{color:var(--muted);font-size:14px;margin:0 0 14px}.hub-kicker{text-transform:uppercase;letter-spacing:.08em;font-size:11px;font-weight:800;color:var(--accent2)}.hub-action{margin-top:auto;font-size:13px;font-weight:800}.hub-intro{max-width:900px}.graph-path{margin:22px 0 0;color:var(--muted);font-size:14px}.pathway-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.pathway-card{display:block;background:linear-gradient(145deg,#191919,#121212);border:1px solid var(--line);border-radius:12px;padding:20px;color:#fff}.pathway-card span{font-size:11px;text-transform:uppercase;letter-spacing:.08em;font-weight:800;color:var(--accent2)}.pathway-card h3{margin:7px 0}.pathway-card p{color:var(--muted);font-size:14px;margin:0}@media(max-width:820px){.hub-grid,.pathway-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:520px){.hub-grid,.pathway-grid{grid-template-columns:1fr}}

.sitemap-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}@media(max-width:820px){.sitemap-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:520px){.sitemap-grid{grid-template-columns:1fr}}


/* Affiliate CTA + banner layer */
.affiliate-quicklinks{border-top:1px solid #202020;background:#111;overflow:hidden}.affiliate-quicklinks-inner{max-width:var(--max);margin:auto;padding:8px 20px;display:flex;align-items:center;gap:7px;overflow-x:auto;scrollbar-width:thin}.affiliate-label{font-size:10px;line-height:1;text-transform:uppercase;letter-spacing:.1em;color:#777;font-weight:900;white-space:nowrap;margin-right:2px}.affiliate-pill{display:inline-flex;align-items:center;justify-content:center;min-height:34px;padding:7px 11px;border-radius:999px;background:linear-gradient(135deg,#f43f5e,#be123c);border:1px solid #fb7185;color:#fff!important;font-size:12px;font-weight:850;line-height:1.1;white-space:nowrap;box-shadow:0 4px 14px rgba(244,63,94,.12);transition:transform .16s ease,filter .16s ease}.affiliate-pill:hover{filter:brightness(1.12);transform:translateY(-1px)}.affiliate-pill:focus-visible{outline:2px solid #fff;outline-offset:2px}.sponsor-banners{border-top:1px solid var(--line);background:#101010;padding:28px 20px}.sponsor-banners-inner{max-width:var(--max);margin:auto}.sponsor-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:14px}.sponsor-heading span{font-size:13px;font-weight:850;text-transform:uppercase;letter-spacing:.08em;color:#e4e4e7}.sponsor-heading small{color:#737780;font-size:11px}.sponsor-banner-grid{display:grid;grid-template-columns:repeat(3,minmax(0,300px));justify-content:center;gap:18px}.sponsor-banner{display:block;width:300px;max-width:100%;border-radius:12px;overflow:hidden;border:1px solid #2f2f2f;background:#fff;box-shadow:0 10px 28px rgba(0,0,0,.28);transition:transform .16s ease,border-color .16s ease}.sponsor-banner:hover{transform:translateY(-2px);border-color:#555}.sponsor-banner img{display:block;width:300px;height:auto;aspect-ratio:6/5;object-fit:cover}.sponsor-banner:focus-visible{outline:2px solid var(--accent2);outline-offset:3px}@media(max-width:980px){.sponsor-banner-grid{grid-template-columns:repeat(2,minmax(0,300px))}.sponsor-banner:last-child{grid-column:1/-1;justify-self:center}}@media(max-width:680px){header.site-header{position:relative}.affiliate-quicklinks-inner{padding:8px 15px}.affiliate-label{position:sticky;left:0;background:#111;padding-right:6px;z-index:2}.sponsor-banners{padding:24px 16px}.sponsor-heading{align-items:flex-start;flex-direction:column;gap:3px}.sponsor-banner-grid{display:flex;justify-content:flex-start;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}.sponsor-banner{min-width:min(300px,82vw);scroll-snap-align:start}.sponsor-banner:last-child{grid-column:auto}}

/* Affiliate CTA strip polish — centered, unmistakably clickable */
.affiliate-quicklinks{
  border-top:1px solid #2a2a2a;
  border-bottom:1px solid #242424;
  background:linear-gradient(180deg,#151515 0%,#0f0f0f 100%);
  overflow:hidden;
}
.affiliate-quicklinks-inner{
  max-width:1180px;
  margin:0 auto;
  padding:12px 20px 13px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:9px;
  overflow:visible;
  text-align:center;
}
.affiliate-label{
  flex:0 0 100%;
  display:block;
  margin:0 0 2px;
  color:#9ca3af;
  font-size:10px;
  line-height:1.2;
  text-transform:uppercase;
  letter-spacing:.16em;
  font-weight:900;
  text-align:center;
}
.affiliate-pill{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:40px;
  padding:9px 17px;
  border:1px solid #ff6b86;
  border-bottom-color:#8f102a;
  border-radius:8px;
  background:linear-gradient(180deg,#ff4969 0%,#e11d48 55%,#be123c 100%);
  color:#fff!important;
  font-size:12px;
  font-weight:900;
  line-height:1.1;
  letter-spacing:.01em;
  white-space:nowrap;
  text-decoration:none!important;
  text-shadow:0 1px 1px rgba(0,0,0,.28);
  box-shadow:0 3px 0 #83152b,0 7px 16px rgba(0,0,0,.26),inset 0 1px 0 rgba(255,255,255,.22);
  cursor:pointer;
  transition:transform .14s ease,box-shadow .14s ease,filter .14s ease;
}
.affiliate-pill::after{
  content:'›';
  margin-left:7px;
  font-size:17px;
  line-height:10px;
  font-weight:1000;
  opacity:.95;
}
.affiliate-pill:hover{
  color:#fff!important;
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 5px 0 #83152b,0 10px 20px rgba(0,0,0,.32),inset 0 1px 0 rgba(255,255,255,.25);
}
.affiliate-pill:active{
  transform:translateY(2px);
  box-shadow:0 1px 0 #83152b,0 4px 8px rgba(0,0,0,.25);
}
.affiliate-pill:focus-visible{outline:3px solid #fff;outline-offset:3px}
@media(max-width:900px){
  .affiliate-quicklinks-inner{padding:11px 15px 13px;gap:8px}
  .affiliate-pill{min-height:39px;padding:9px 14px;font-size:11.5px}
}
@media(max-width:680px){
  .affiliate-quicklinks{overflow:visible}
  .affiliate-quicklinks-inner{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:8px;
    padding:11px 12px 13px;
    overflow:visible;
  }
  .affiliate-label{
    grid-column:1/-1;
    position:static;
    background:transparent;
    padding:0;
    margin:0 0 2px;
  }
  .affiliate-pill{
    width:100%;
    min-height:42px;
    padding:9px 8px;
    white-space:normal;
    text-align:center;
  }
}
@media(max-width:390px){
  .affiliate-quicklinks-inner{grid-template-columns:1fr}
  .affiliate-label{grid-column:auto}
}