*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#F4F5F8;--surface:#FFFFFF;--border:#DDE2EC;--text:#1A2435;--text2:#5A6880;--text3:#66758B;--accent:#0055AA;--accent-lt:#E6F1FB;--accent-light:#3EACF2;--brand-green:#6BA82E;--brand-green-text:#527F1F;--brand-navy:#142B3A;--radius:8px;--shadow:0 1px 4px rgba(0,0,0,.07),0 0 0 1px var(--border)}
html{font-size:15px;scroll-behavior:smooth}body{font-family:'Inter',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--accent)}
.site-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;padding:0 20px}.site-header::after{content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;background:linear-gradient(90deg,var(--accent-light) 0%,var(--accent) 45%,var(--brand-green) 100%)}.header-inner{max-width:1260px;margin:0 auto;display:flex;align-items:center;gap:20px;height:60px;position:relative}.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text);font-weight:700;min-width:0}.logo-img{height:36px;width:auto;display:block}.tagline{font-size:.82rem;color:var(--text2);white-space:nowrap}.stats{margin-left:auto;display:flex;align-items:center;gap:10px;color:var(--text3);font-size:.82rem;white-space:nowrap}.nav-links{display:flex;align-items:center;gap:16px;margin-left:14px}.nav-links a{font-size:.88rem;font-weight:600;color:var(--text2);text-decoration:none}.nav-links a:hover{color:var(--accent)}
.hub-main{max-width:1260px;margin:0 auto;padding:34px 20px 64px}.breadcrumbs{font-size:.86rem;color:var(--text3);margin:0 0 18px}.breadcrumbs a{font-weight:600;text-decoration:none;color:var(--accent)}.hero{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px;position:relative;overflow:hidden}.hero::before{content:'';position:absolute;inset:0 0 auto 0;height:4px;background:linear-gradient(90deg,var(--accent-light),var(--accent),var(--brand-green))}.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-green-text);margin-bottom:8px}h1{font-size:clamp(2rem,4vw,3.2rem);line-height:1.08;letter-spacing:-.03em;margin:0 0 14px;color:var(--text)}h2{font-size:1.35rem;line-height:1.2;margin:0 0 14px;color:var(--text)}.lead{max-width:840px;color:var(--text2);font-size:1.06rem;margin:0}.cta-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:38px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--accent);font-weight:700;text-decoration:none;padding:9px 14px;box-shadow:0 1px 2px rgba(0,0,0,.04)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.topic-section{margin-top:26px}.topic-section>h2 a{text-decoration:none;color:var(--text)}.topic-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(245px,1fr));gap:14px}.topic-card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;text-decoration:none;color:var(--text);transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.topic-card:hover{transform:translateY(-1px);border-color:#B8C4D6;box-shadow:0 4px 14px rgba(0,0,0,.08),0 0 0 1px var(--border);text-decoration:none}.topic-card span{display:block;font-weight:700;margin-bottom:6px;color:var(--text)}.topic-card small{display:block;color:var(--text3);font-size:.86rem}.count{display:inline-block;background:var(--accent-lt);color:var(--accent);border:1px solid #C7DCF4;border-radius:999px;padding:4px 9px;font-weight:700;font-size:.82rem;margin-top:8px}.note{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-top:26px;color:var(--text2)}
.site-footer{background:var(--surface);border-top:1px solid var(--border);padding:32px 20px;color:var(--text3)}.footer-inner{max-width:1260px;margin:0 auto;display:flex;gap:30px;flex-wrap:wrap}.footer-col{flex:1;min-width:180px}.footer-col h4{font-size:.8rem;font-weight:600;color:var(--text3);text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px}.footer-col p,.footer-col a{font-size:.82rem;color:var(--text3);line-height:1.6}.footer-col a{color:var(--accent);text-decoration:none}.footer-col a:hover{text-decoration:underline}.footer-ad{flex:2;min-width:300px}.footer-bottom{max-width:1260px;margin:20px auto 0;font-size:.78rem;color:var(--text3);border-top:1px solid var(--border);padding-top:16px}.ad-slot{border:1px dashed var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;background:#FAFBFD;color:var(--text3);font-size:.8rem}
@media(max-width:860px){.header-inner{height:auto;min-height:60px;flex-wrap:wrap;padding:10px 0}.tagline,.stats{display:none}.nav-links{order:2;width:100%;margin-left:0;overflow-x:auto;padding-bottom:4px}.hub-main{padding:24px 14px 50px}.hero{padding:24px 18px}.topic-grid{grid-template-columns:1fr}.footer-inner{display:block}.footer-col{margin-bottom:18px}.footer-ad{display:none}}

/* ---- ad containers ---- */
.ad-incontent,.ad-prefooter{margin:26px auto;text-align:center;max-width:900px}
.ad-prefooter{margin:40px auto -6px;padding:0 20px}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--accent);color:#fff;font-weight:600;padding:10px 18px;border-radius:0 0 var(--radius) 0;text-decoration:none;font-size:.9rem}
.skip-link:focus{left:0}

/* ---- mobile ergonomics (2026-07): prevent iOS input auto-zoom, enlarge tap targets ---- */
@media (max-width:768px){
  input, select, textarea{font-size:16px !important}
  .filter-clear{padding:9px 12px !important}
  .drawer-close{padding:8px 12px !important}
  .crumbs a{display:inline-block;padding:6px 2px}
}
.ad-label{display:block;margin:0 0 7px;font-size:.65rem;line-height:1;text-transform:uppercase;letter-spacing:.08em;color:var(--text3)}