:root{--ink:#20231f;--muted:#62685f;--paper:#f7f4ed;--white:#fffdf8;--sage:#dfe6d8;--accent:#8a4f35;--line:#d9d6ce;--max:1160px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.68}a{color:inherit}header{position:sticky;top:0;z-index:10;background:rgba(247,244,237,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{max-width:var(--max);margin:auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{text-decoration:none;font-weight:900;letter-spacing:-.04em;font-size:1.35rem}.brand span{font-weight:500}.navlinks{display:flex;gap:22px;font-size:.92rem}.navlinks a{text-decoration:none}.navlinks a:hover,.text-link:hover{text-decoration:underline}.menu{display:none}main{max-width:var(--max);margin:auto;padding:56px 24px 90px}.article{max-width:820px;margin:auto}.article-head{padding:18px 0 38px;border-bottom:1px solid var(--line);margin-bottom:34px}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;font-weight:800;color:var(--accent)}h1,h2,h3{font-family:Georgia,"Times New Roman",serif;line-height:1.08;letter-spacing:-.025em}h1{font-size:clamp(2.6rem,6vw,5.5rem);margin:.18em 0}.article h1{font-size:clamp(2.5rem,5vw,4.5rem)}h2{font-size:clamp(1.7rem,3vw,2.55rem);margin:0 0 16px}h3{font-size:1.35rem}.lede{font-size:1.2rem;color:var(--muted);max-width:760px}.updated{font-size:.82rem;color:var(--muted)}section{margin:56px 0}.hero-home{display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:60px;min-height:62vh;margin-top:0}.hero-home em{color:var(--accent);font-weight:normal}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-block;padding:13px 18px;border-radius:999px;text-decoration:none;font-weight:800;font-size:.92rem}.btn-primary{background:var(--ink);color:white}.btn-primary:hover{background:var(--accent)}.btn-secondary{border:1px solid var(--ink)}.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.card{display:block;text-decoration:none;background:var(--white);border:1px solid var(--line);border-radius:18px;padding:24px;transition:.2s transform,.2s box-shadow}.card:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(30,30,20,.07)}.card h3{margin:8px 0}.card p{color:var(--muted);font-size:.92rem}.text-link{font-weight:800;font-size:.9rem}.method-box,.verdict{background:var(--sage);padding:34px;border-radius:24px}.disclosure{font-size:.85rem;padding:14px 18px;border:1px solid var(--line);border-radius:12px;background:var(--white);color:var(--muted)}.facts{display:grid;grid-template-columns:repeat(2,1fr);border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--white)}.facts div{padding:18px;border-bottom:1px solid var(--line)}.facts div:nth-child(odd){border-right:1px solid var(--line)}.facts b,.facts span{display:block}.facts span{color:var(--muted);font-size:.9rem;margin-top:4px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px}.steps li{margin:10px 0}.feature{background:var(--ink);color:white;border-radius:26px;padding:38px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}.feature .btn{background:white;color:var(--ink)}.badge{width:190px;height:190px;border-radius:50%;border:1px solid #777;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;font-family:Georgia,serif;font-size:1.8rem}.badge small{font-family:Inter,sans-serif;font-size:.55rem;letter-spacing:.12em}.mattress-art{height:350px;position:relative;display:flex;flex-direction:column;justify-content:center}.mattress-art>*{margin:auto;width:90%}.pillow{width:45%;height:54px;background:#fff;border:1px solid var(--line);border-radius:50%;transform:translateX(-30px)}.layer{height:45px;border-radius:14px 14px 5px 5px;border:1px solid #c8c4b9}.l1{background:#fff}.l2{background:#e9dfd2}.coils{height:90px;background:var(--white);border:1px solid var(--line);font-size:2.6rem;letter-spacing:.15em;display:flex;align-items:center;justify-content:center;color:#817a6d}.base{height:30px;background:var(--ink);border-radius:0 0 12px 12px}footer{border-top:1px solid var(--line);padding:44px 24px;color:var(--muted)}.foot{max-width:var(--max);margin:auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}.foot a{display:block;margin:7px 0;font-size:.9rem}.note{font-size:.8rem}.breadcrumbs{font-size:.8rem;color:var(--muted);margin-bottom:18px}.breadcrumbs a{text-decoration:none}@media(max-width:760px){.navlinks{display:none}.menu{display:block;font-size:.8rem}.hero-home{grid-template-columns:1fr;gap:10px}.mattress-art{height:260px}.card-grid,.two-col,.facts,.feature,.foot{grid-template-columns:1fr}.facts div:nth-child(odd){border-right:0}.feature .badge{display:none}main{padding-top:34px}h1{font-size:3.2rem}}

/* Complete-site navigation, CTA and sidebar enhancements */
.header-cta{white-space:nowrap;padding:10px 15px}
.desktop-nav-actions{display:flex;align-items:center;gap:16px}
.hamburger{display:none;border:0;background:transparent;padding:8px;cursor:pointer}
.hamburger span{display:block;width:23px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}
.mobile-menu{display:none;background:var(--paper);border-top:1px solid var(--line);padding:10px 24px 18px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:11px 0;text-decoration:none;border-bottom:1px solid var(--line)}
.page-shell{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:48px;align-items:start;max-width:1160px;margin:auto}
.page-shell .article{max-width:none;margin:0}
.site-sidebar{position:static;background:var(--white);border:1px solid var(--line);border-radius:18px;padding:22px;margin-top:64px}
.site-sidebar h2{font-size:1.35rem}
.site-sidebar .btn{width:100%;text-align:center;margin:10px 0 14px}
.site-sidebar a.side-link{display:block;padding:8px 0;border-top:1px solid var(--line);text-decoration:none;font-size:.9rem}
.experience-note{border-left:3px solid var(--accent);padding:2px 0 2px 16px;color:var(--muted)}
.sitemap-list{columns:2;column-gap:38px}
.sitemap-list li{break-inside:avoid;margin:8px 0}
@media(min-width:761px){header{position:sticky;top:0}.mobile-menu{display:none!important}}
@media(max-width:760px){
 header{position:sticky;top:0}
 .nav{padding:12px 14px;gap:8px}
 .brand{font-size:1.08rem;margin-right:auto}
 .desktop-nav-actions{gap:5px;margin-left:auto}
 .navlinks{display:none}
 .header-cta{font-size:.75rem;padding:9px 11px}
 .hamburger{display:block}
 .menu{display:none}
 .page-shell{display:block}
 .site-sidebar{margin-top:36px}
 .sitemap-list{columns:1}
}

.cta-popup[hidden]{display:none}.cta-popup{position:fixed;inset:0;z-index:1000;background:rgba(20,22,19,.48);display:flex;align-items:center;justify-content:center;padding:20px}.cta-popup-card{position:relative;width:min(520px,100%);background:var(--white);border:1px solid var(--line);border-radius:24px;padding:30px;box-shadow:0 24px 80px rgba(0,0,0,.22)}.cta-popup-card h2{margin-top:5px}.popup-close{position:absolute;right:14px;top:12px;border:0;background:transparent;font-size:1.7rem;line-height:1;cursor:pointer;color:var(--muted)}.popup-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.popup-stay{background:transparent;border:1px solid var(--ink);color:var(--ink);cursor:pointer}.popup-offer{cursor:pointer}@media(max-width:760px){.cta-popup-card{padding:26px 20px}.popup-actions .btn{flex:1;text-align:center}}

.takeaways{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:22px 26px;margin:26px 0}.takeaways ul{margin-bottom:0}.toc{background:transparent;border-left:3px solid var(--sage);padding:4px 0 4px 22px;margin:30px 0}.toc h2{font-size:1.35rem}.toc li{margin:6px 0}.cluster-strip{border-top:1px solid var(--line);padding-top:30px}.cluster-strip .side-link{display:block;padding:7px 0}.faq h3{margin-top:25px}