/* YU Sleep Reviews Research — design system */
:root{
  --indigo-950:#171338; --indigo-900:#1e1b4b; --indigo-800:#262262; --indigo-700:#312e81; --indigo-600:#4038a8;
  --lav-200:#c7cdfa; --lav-100:#e4e8ff; --lav-50:#f4f6ff;
  --amber:#9a5b2d; --amber-dark:#7c4722; --green:#3f7d4e; --green-bg:#eef6ef;
  --ink:#20243a; --muted:#5c6273; --line:#e3e6f2; --bg:#ffffff; --card:#fbfcff;
  --warn-bg:#fdf6ec; --warn-line:#e8d3b0; --bad-bg:#fbeeec; --bad-line:#e5c1ba;
  --radius:14px; --shadow:0 2px 6px rgba(30,27,75,.06),0 12px 32px rgba(30,27,75,.08);
  --serif:Charter,"Bitstream Charter","Sitka Text",Cambria,Georgia,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --maxw:1180px; --content:760px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--serif);font-size:17px;line-height:1.72}
img{max-width:100%;height:auto;display:block}
a{color:var(--indigo-700)}
a:hover{color:var(--indigo-600)}
:focus-visible{outline:3px solid var(--indigo-600);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--indigo-900);color:#fff;padding:10px 16px;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--indigo-950)}
.brand img{width:30px;height:30px;border-radius:8px}
.brand b{font-family:var(--sans);font-size:1.02rem;letter-spacing:.2px}
.brand small{display:block;font-family:var(--sans);font-size:.66rem;color:var(--muted);letter-spacing:.6px;text-transform:uppercase;margin-top:1px}
.nav{display:flex;gap:4px;align-items:center}
.nav a{font-family:var(--sans);font-size:.9rem;font-weight:600;color:var(--ink);text-decoration:none;padding:9px 12px;border-radius:8px;white-space:nowrap}
.nav a:hover{background:var(--lav-50);color:var(--indigo-700)}
.nav a.nav-cta{background:var(--indigo-800);color:#fff;margin-left:6px}
.nav a.nav-cta:hover{background:var(--indigo-700)}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:44px;height:44px;cursor:pointer;padding:0}
.burger span{display:block;width:20px;height:2px;background:var(--indigo-900);margin:4px auto;border-radius:2px;transition:transform .25s,opacity .25s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mnav{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 20px 18px}
.mnav.open{display:block}
.mnav a{display:block;font-family:var(--sans);font-weight:600;font-size:1rem;color:var(--ink);text-decoration:none;padding:12px 6px;border-bottom:1px solid var(--lav-50)}
.mnav a.mnav-cta{color:var(--indigo-700)}
@media (max-width:1079px){
  .nav{display:none}
  .burger{display:block}
}
/* ---------- breadcrumbs ---------- */
.crumbs{font-family:var(--sans);font-size:.78rem;color:var(--muted);padding:14px 0 0}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--indigo-700);text-decoration:underline}
.crumbs span{margin:0 6px}
/* ---------- hero ---------- */
.hero{background:linear-gradient(160deg,#f8f9ff 0%,#eef1ff 55%,#e7ebff 100%);border-bottom:1px solid var(--line)}
.hero-in{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:44px;align-items:center;padding:52px 20px 56px}
.hero h1{font-family:var(--sans);font-size:clamp(1.7rem,3.6vw,2.6rem);line-height:1.18;color:var(--indigo-950);margin:14px 0 16px;letter-spacing:-.4px}
.kicker{font-family:var(--sans);font-size:.74rem;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;color:var(--indigo-600)}
.hero p.lede{font-size:1.12rem;color:#3a3f57;margin:0 0 22px}
.hero-fig{margin:0}
.hero-fig .frame{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow)}
.hero-fig img{margin:0 auto;border-radius:8px}
.hero-fig figcaption{font-family:var(--sans);font-size:.74rem;color:var(--muted);text-align:center;margin-top:12px}
@media (max-width:880px){.hero-in{grid-template-columns:1fr;padding:36px 20px 40px;gap:28px}.hero-fig .frame{max-width:420px;margin:0 auto}}
/* ---------- buttons ---------- */
.btn{display:inline-block;font-family:var(--sans);font-weight:700;font-size:.95rem;text-decoration:none;border-radius:12px;padding:14px 22px;line-height:1.2;text-align:center}
.btn-cta{background:linear-gradient(180deg,var(--indigo-700),var(--indigo-800));color:#fff;box-shadow:0 6px 18px rgba(49,46,129,.28)}
.btn-cta:hover{background:var(--indigo-600);color:#fff}
.btn-ghost{background:#fff;color:var(--indigo-800);border:1.5px solid var(--lav-200)}
.btn-ghost:hover{border-color:var(--indigo-600);color:var(--indigo-700)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin:8px 0 4px}
/* ---------- quick answer ---------- */
.qa{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 24px;margin:34px 0 8px}
.qa h2{font-family:var(--sans);font-size:.82rem;letter-spacing:1.2px;text-transform:uppercase;color:var(--indigo-700);margin:0 0 12px}
.qa dl{display:grid;grid-template-columns:auto 1fr;gap:8px 18px;margin:0}
.qa dt{font-family:var(--sans);font-weight:700;font-size:.86rem;color:var(--indigo-950);white-space:nowrap}
.qa dd{margin:0;font-size:.95rem;color:#3a3f57}
@media (max-width:640px){.qa dl{grid-template-columns:1fr}.qa dt{margin-top:6px}}
/* ---------- content layout ---------- */
.layout{display:grid;grid-template-columns:minmax(0,var(--content)) 300px;gap:52px;padding:44px 20px 30px;max-width:var(--maxw);margin:0 auto}
.layout.no-toc{grid-template-columns:minmax(0,var(--content));justify-content:center}
@media (max-width:1020px){.layout{grid-template-columns:minmax(0,1fr);gap:0;display:flex;flex-direction:column}.toc{display:block;position:static;order:-1;border-left:none;background:var(--lav-50);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:20px 20px 0}.toc a{padding:4px 0}}
.content h1{font-family:var(--sans);font-size:clamp(1.6rem,3.4vw,2.3rem);line-height:1.2;color:var(--indigo-950);letter-spacing:-.3px;margin:.4em 0 .6em}
.content h2{font-family:var(--sans);font-size:clamp(1.22rem,2.4vw,1.55rem);color:var(--indigo-950);line-height:1.3;margin:1.9em 0 .7em;letter-spacing:-.2px}
.content h3{font-family:var(--sans);font-size:1.08rem;color:var(--indigo-900);margin:1.6em 0 .5em}
.content p{margin:0 0 1.15em}
.content ul,.content ol{margin:0 0 1.2em;padding-left:1.3em}
.content li{margin:.45em 0}
.content li::marker{color:var(--indigo-600)}
.updated{font-family:var(--sans);font-size:.78rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px 18px;margin:0 0 26px;padding:10px 14px;background:var(--lav-50);border:1px solid var(--line);border-radius:10px}
/* ---------- toc ---------- */
.toc{position:sticky;top:84px;align-self:start;font-family:var(--sans);font-size:.86rem;border-left:2px solid var(--lav-100);padding-left:18px;margin-top:6px}
.toc h2{font-size:.72rem;letter-spacing:1.3px;text-transform:uppercase;color:var(--muted);margin:0 0 10px;font-family:var(--sans)}
.toc a{display:block;color:var(--muted);text-decoration:none;padding:5px 0;line-height:1.35}
.toc a:hover{color:var(--indigo-700)}
/* ---------- tables ---------- */
.tbl{margin:0 0 1.6em;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 1px 3px rgba(30,27,75,.05)}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-family:var(--sans);font-size:.9rem;min-width:560px}
caption{caption-side:top;text-align:left;font-family:var(--sans);font-size:.8rem;color:var(--muted);padding:0 0 8px}
th{background:var(--indigo-900);color:#fff;text-align:left;font-weight:600;padding:11px 14px;letter-spacing:.2px}
td{padding:11px 14px;border-top:1px solid var(--line);vertical-align:top;background:#fff}
tr:nth-child(even) td{background:var(--lav-50)}
/* ---------- callouts ---------- */
.callout{border-radius:12px;padding:16px 18px;margin:0 0 1.5em;border:1px solid var(--line);background:var(--card);font-size:.98rem}
.callout .co-t{font-family:var(--sans);font-weight:700;font-size:.85rem;letter-spacing:.4px;text-transform:uppercase;display:block;margin-bottom:6px}
.callout.note{background:var(--lav-50);border-color:var(--lav-200)}.callout.note .co-t{color:var(--indigo-700)}
.callout.good{background:var(--green-bg);border-color:#bcd9c0}.callout.good .co-t{color:var(--green)}
.callout.warn{background:var(--warn-bg);border-color:var(--warn-line)}.callout.warn .co-t{color:var(--amber-dark)}
.callout.bad{background:var(--bad-bg);border-color:var(--bad-line)}.callout.bad .co-t{color:#a03a2c}
/* ---------- pros cons ---------- */
.pc{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:0 0 1.8em}
.pc>div{border-radius:12px;padding:18px 20px;border:1px solid}
.pc .pros{background:var(--green-bg);border-color:#bcd9c0}
.pc .cons{background:var(--bad-bg);border-color:var(--bad-line)}
.pc h3{margin:0 0 10px;font-family:var(--sans);font-size:.95rem}
.pc ul{margin:0;padding-left:1.1em}
.pc li{margin:.5em 0;font-size:.95rem}
@media (max-width:640px){.pc{grid-template-columns:1fr}}
/* ---------- faq ---------- */
details.faq{border:1px solid var(--line);border-radius:12px;background:#fff;margin:0 0 12px;box-shadow:0 1px 3px rgba(30,27,75,.05)}
details.faq summary{cursor:pointer;font-family:var(--sans);font-weight:700;font-size:.98rem;color:var(--indigo-950);padding:15px 44px 15px 18px;list-style:none;position:relative}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-52%);font-size:1.3rem;color:var(--indigo-600);font-weight:400}
details.faq[open] summary::after{content:"–"}
details.faq .faq-body{padding:0 18px 16px;font-size:.97rem}
/* ---------- cta band ---------- */
.cta-band{background:linear-gradient(135deg,var(--indigo-900),var(--indigo-700));border-radius:16px;color:#e6e9ff;padding:26px 28px;margin:2.2em 0;box-shadow:var(--shadow)}
.cta-band h2,.cta-band h3{color:#fff;margin:0 0 8px;font-family:var(--sans)}
.cta-band p{color:#cdd3f6;margin:0 0 16px;font-size:.98rem}
.cta-band .btn-cta{background:#fff;color:var(--indigo-800)}
.cta-band .btn-cta:hover{background:var(--lav-100)}
.cta-band small{display:block;margin-top:10px;color:#aab1e0;font-family:var(--sans);font-size:.72rem}
/* ---------- related ---------- */
.related{margin:2.4em 0 1em;border-top:2px solid var(--lav-100);padding-top:20px}
.related h2{font-size:1.05rem !important;margin:0 0 14px !important}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}
.rel-grid a{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;font-family:var(--sans);font-size:.88rem;font-weight:600;color:var(--indigo-900);line-height:1.4}
.rel-grid a:hover{border-color:var(--indigo-600);box-shadow:var(--shadow)}
.rel-grid a span{display:block;font-size:.72rem;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.8px;margin-bottom:5px}
/* ---------- references ---------- */
.refs{font-size:.86rem;color:var(--muted)}
.refs ol{padding-left:1.2em}
.refs li{margin:.5em 0}
.refs a{word-break:break-word}
/* ---------- footer ---------- */
.site-foot{background:var(--indigo-950);color:#b9bfdd;margin-top:60px;font-family:var(--sans)}
.foot-in{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:34px;padding:48px 20px 30px}
.foot-in h3{color:#fff;font-size:.8rem;letter-spacing:1.2px;text-transform:uppercase;margin:0 0 14px}
.foot-in a{color:#b9bfdd;text-decoration:none;display:block;font-size:.86rem;padding:3.5px 0}
.foot-in a:hover{color:#fff;text-decoration:underline}
.foot-in p{font-size:.84rem;line-height:1.6}
.foot-base{border-top:1px solid rgba(255,255,255,.12);padding:18px 20px 26px;font-size:.75rem;color:#8d93b8}
.foot-base .wrap p{margin:.4em 0}
@media (max-width:900px){.foot-in{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.foot-in{grid-template-columns:1fr}}
/* ---------- sticky bar ---------- */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:90;background:rgba(23,19,56,.97);backdrop-filter:blur(6px);transform:translateY(100%);transition:transform .3s ease;padding:10px 14px calc(10px + env(safe-area-inset-bottom));display:flex;align-items:center;justify-content:center;gap:14px}
.sticky-bar.show{transform:translateY(0)}
.sticky-bar p{margin:0;color:#cdd3f6;font-family:var(--sans);font-size:.82rem;display:none}
.sticky-bar .btn{padding:11px 18px;font-size:.88rem}
@media (min-width:640px){.sticky-bar p{display:block}}
/* ---------- misc ---------- */
.img-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:0 1px 4px rgba(30,27,75,.06);margin:0 0 1.6em}
.img-card img{margin:0 auto}
.img-card figcaption{font-family:var(--sans);font-size:.76rem;color:var(--muted);margin-top:10px;text-align:center}
.img-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px;margin:0 0 1.8em}
.img-row .img-card{margin:0}
.byline{font-family:var(--sans);font-size:.8rem;color:var(--muted);margin:0 0 8px}
sup a{font-size:.72em;color:var(--indigo-600);text-decoration:none}
sup a:hover{text-decoration:underline}
@media print{.site-head,.site-foot,.sticky-bar,.toc{display:none}}

.rnav{margin:0 0 20px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 1px 3px rgba(30,27,75,.05)}
.rnav h2{font-size:.7rem;letter-spacing:1.3px;text-transform:uppercase;color:var(--muted);margin:0 0 8px;font-family:var(--sans)}
.rnav h2.rnav-h{margin-top:12px}
.rnav a{display:block;font-family:var(--sans);font-size:.85rem;font-weight:600;color:var(--indigo-900);text-decoration:none;padding:3.5px 0}
.rnav a:hover{color:var(--indigo-600)}
@media (max-width:1020px){.rnav{background:#fff}}
@media (max-width:1180px){.nav a{padding:9px 8px;font-size:.84rem}.brand small{display:none}}

/* mobile toc/rnav: must come after desktop .toc sticky rule to override it */
@media (max-width:1020px){
.layout{display:flex;flex-direction:column}
.toc{display:block;position:static;top:auto;order:-1;border-left:none;background:var(--lav-50);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:20px 20px 0}
.toc a{padding:4px 0}
.rnav{margin-bottom:16px}
}
.hero>.crumbs{padding:18px 20px 0}

/* ---- review scorecard ---- */
.scorecard{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 26px 20px;margin:0 0 2.2em;box-shadow:0 2px 10px rgba(30,27,75,.07)}
.sc-head{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin-bottom:18px}
.sc-overall{display:flex;align-items:baseline;gap:6px;flex-wrap:wrap}
.sc-num{font-family:var(--sans);font-size:2.6rem;font-weight:800;color:var(--indigo-800);line-height:1}
.sc-den{font-family:var(--sans);font-weight:700;color:var(--muted)}
.sc-label{flex-basis:100%;font-family:var(--sans);font-size:.7rem;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--indigo-700)}
.sc-note{flex:1;min-width:240px;font-size:.86rem;color:var(--muted);margin:0}
.sc-grid{display:grid;gap:10px;margin-bottom:20px}
.sc-row{display:grid;grid-template-columns:minmax(140px,240px) 1fr 34px;gap:12px;align-items:center;font-family:var(--sans);font-size:.86rem;font-weight:600;color:var(--ink)}
.sc-row i{display:block;height:8px;border-radius:99px;background:var(--lav-50);overflow:hidden}
.sc-row i::after{content:"";display:block;height:100%;width:var(--w);border-radius:99px;background:linear-gradient(90deg,var(--indigo-700),var(--indigo-600))}
.sc-row b{text-align:right;color:var(--indigo-800)}
.sc-cols{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:16px}
.sc-pros h3,.sc-cons h3{font-family:var(--sans);font-size:.8rem;letter-spacing:.6px;text-transform:uppercase;margin:0 0 10px}
.sc-pros h3{color:#177245}.sc-cons h3{color:#a04040}
.sc-pros ul,.sc-cons ul{list-style:none;margin:0;padding:0}
.sc-pros li,.sc-cons li{font-size:.88rem;margin:0 0 8px;padding-left:22px;position:relative}
.sc-pros li::before{content:"✓";position:absolute;left:2px;color:#177245;font-weight:800}
.sc-cons li::before{content:"!";position:absolute;left:4px;color:#a04040;font-weight:800}
.sc-how{font-size:.8rem;color:var(--muted);border-top:1px dashed var(--line);padding-top:12px;margin:0}
@media (max-width:760px){.sc-cols{grid-template-columns:1fr}.sc-row{grid-template-columns:1fr 34px;row-gap:4px}.sc-row span{grid-column:1/-1}}
/* ---- site search ---- */
.head-in{justify-content:flex-start}
.nav{margin-left:auto}
.brand{flex:0 0 auto}
.brand b,.brand small{white-space:nowrap}
@media (max-width:1079px){.burger{margin-left:auto;background:#fff}}
/* ---------- navbar "Order Now" CTA — same treatment as hero .btn-cta ---------- */
.nav a.nav-cta{background:linear-gradient(180deg,var(--indigo-700),var(--indigo-800));color:#fff;border-radius:12px;padding:11px 20px;font-size:.9rem;box-shadow:0 6px 18px rgba(49,46,129,.28);transition:filter .15s}
.nav a.nav-cta:hover{background:linear-gradient(180deg,var(--indigo-600),var(--indigo-700));color:#fff;filter:brightness(1.05)}
.mnav a.mnav-cta{display:block;background:linear-gradient(180deg,var(--indigo-700),var(--indigo-800));color:#fff;font-weight:700;text-align:center;border-radius:12px;padding:13px 20px;margin:16px 0 4px;border-bottom:none;box-shadow:0 6px 18px rgba(49,46,129,.28)}
.mnav a.mnav-cta:hover{background:var(--indigo-600);color:#fff}