:root{--ink:#101426;--muted:#626a7a;--line:#e7e9ef;--paper:#fff;--wash:#f7f8fc;--accent:#6c4cff;--accent2:#3b2bbd;--soft:#eeeaff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.68}
a{color:inherit}.wrap{width:min(1160px,calc(100% - 36px));margin:auto}.site-head{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{min-height:72px;display:flex;align-items:center;gap:24px}.brand{font-weight:900;text-decoration:none;letter-spacing:-.035em;font-size:1.22rem;white-space:nowrap}.brand span{color:var(--accent)}
.links{display:flex;gap:18px;margin-left:auto;align-items:center}.links a{text-decoration:none;font-size:.91rem;color:#34394a}.button,.cta{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff!important;text-decoration:none;border-radius:12px;padding:11px 16px;font-weight:800;border:0}.button:hover,.cta:hover{background:var(--accent2)}
.mobile-actions{display:none;margin-left:auto;align-items:center;gap:8px}.mobile-cta{padding:9px 12px;font-size:.82rem}.menu{background:none;border:1px solid var(--line);border-radius:10px;width:42px;height:42px;font-size:1.25rem;line-height:1}
.hero{padding:78px 0 52px;background:radial-gradient(circle at 82% 12%,var(--soft) 0,transparent 31%),linear-gradient(180deg,#fff,#fafaff)}.eyebrow{font-size:.76rem;font-weight:850;letter-spacing:.13em;text-transform:uppercase;color:var(--accent)}
h1{font-size:clamp(2.35rem,5.5vw,4.75rem);line-height:1.03;letter-spacing:-.052em;max-width:930px;margin:13px 0 18px}h2{font-size:1.65rem;letter-spacing:-.025em;margin:40px 0 10px}h3{letter-spacing:-.015em}
.dek{font-size:clamp(1.06rem,2vw,1.3rem);color:var(--muted);max-width:780px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.ghost{display:inline-flex;border:1px solid var(--line);border-radius:12px;padding:10px 16px;text-decoration:none;font-weight:750;background:#fff}
.disclosure{margin-top:17px;font-size:.8rem;color:var(--muted);max-width:800px}.main{padding:58px 0}.layout{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:68px}.article p{color:#34394a;font-size:1.03rem}.sidebar{align-self:start;border:1px solid var(--line);border-radius:18px;padding:21px;background:var(--wash)}.sidebar h3{margin:0 0 8px}.sidebar p{font-size:.9rem;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;margin-top:38px}.card{border:1px solid var(--line);border-radius:17px;padding:20px;text-decoration:none;background:#fff}.card:hover{box-shadow:0 10px 28px rgba(20,20,60,.07);transform:translateY(-1px)}.card h3{margin:0 0 5px;font-size:1.02rem}.card p{margin:0;color:var(--muted);font-size:.9rem}
.breadcrumbs{font-size:.82rem;color:var(--muted);margin-bottom:16px}.breadcrumbs a{text-decoration:none}.note{background:var(--wash);border-radius:15px;padding:17px;margin:30px 0;font-size:.9rem}.footer{border-top:1px solid var(--line);padding:38px 0 52px;color:var(--muted);font-size:.88rem}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:28px}.footer a{display:block;color:var(--muted);text-decoration:none;margin:6px 0}.footer strong{color:var(--ink)}
.sitemap-list{columns:2;column-gap:40px}.sitemap-list li{break-inside:avoid;margin:8px 0}.sitemap-list a{text-decoration:none;color:var(--accent2)}
@media(max-width:900px){.desktop-links{display:none}.mobile-actions{display:flex}.site-head{position:sticky}.layout{grid-template-columns:1fr}.sidebar{position:static}.grid{grid-template-columns:1fr}.hero{padding-top:52px}.mobile-menu{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:15px 18px 20px}.nav.open .mobile-menu{display:flex;flex-direction:column;gap:3px}.mobile-menu a{padding:10px 4px;text-decoration:none}.footer-grid{grid-template-columns:1fr 1fr}.sitemap-list{columns:1}}
@media(max-width:480px){.wrap{width:min(100% - 26px,1160px)}.brand{font-size:1.03rem}.mobile-actions{gap:6px}.mobile-cta{font-size:.76rem;padding:8px 10px}.menu{width:39px;height:39px}.footer-grid{grid-template-columns:1fr}}

/* Header structure fix: one menu, one CTA, one hamburger */
.primary-menu{display:flex;gap:18px;margin-left:auto;align-items:center}
.primary-menu a{text-decoration:none;font-size:.91rem;color:#34394a}
.header-actions{display:flex;align-items:center;gap:8px}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:42px;height:42px;font-size:1.25rem;line-height:1;cursor:pointer}
@media(max-width:900px){
  .nav{position:relative}
  .primary-menu{display:none;position:absolute;top:72px;left:-18px;right:-18px;background:#fff;border-bottom:1px solid var(--line);padding:15px 18px 20px;flex-direction:column;align-items:stretch;gap:3px}
  .nav.open .primary-menu{display:flex}
  .primary-menu a{padding:10px 4px}
  .header-actions{margin-left:auto;gap:6px}
  .header-cta{font-size:.76rem;padding:8px 10px}
  .menu-toggle{display:block;width:39px;height:39px}
}

.meta-row{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 0}.meta-chip{font-size:.78rem;padding:6px 9px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted)}
.takeaways{border:1px solid var(--line);border-radius:18px;padding:22px;margin:28px 0;background:#fafaff}.takeaways h2{margin-top:0}.takeaways li{margin:8px 0}
.toc{border-left:3px solid var(--accent);padding:5px 0 5px 18px;margin:30px 0}.toc a{display:block;color:var(--muted);text-decoration:none;margin:5px 0}
.faq{border-top:1px solid var(--line);padding-top:10px}.faq h3{margin:24px 0 5px}.cluster-nav{margin:34px 0}.cluster-nav strong{display:block;margin-bottom:10px}