/* BestPowerChairs.com — shared design system
   Hybrid of the three winning ranking archetypes:
   score cards (bestreviews.guide) + editorial reviews (thirstybear) + comparison data (comfortalife) */

:root{
  --navy:#0b2545;
  --navy-2:#12365e;
  --ink:#1e293b;
  --muted:#64748b;
  --line:#e2e8f0;
  --bg:#f8fafc;
  --card:#ffffff;
  --cta:#f97316;
  --cta-dark:#ea580c;
  --gold:#eab308;
  --green:#16a34a;
  --red:#dc2626;
  --radius:14px;
  --shadow:0 2px 12px rgba(11,37,69,.08);
  --shadow-lg:0 10px 32px rgba(11,37,69,.14);
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--navy-2);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.wrap-narrow{max-width:860px;margin:0 auto;padding:0 20px}

/* ---------- Header ---------- */
.site-header{
  background:var(--navy);
  color:#fff;
  position:sticky;top:0;z-index:100;
  box-shadow:0 2px 10px rgba(0,0,0,.25);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;max-width:1180px;margin:0 auto;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.25rem;letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--gold),var(--cta));
  display:flex;align-items:center;justify-content:center;
  font-size:1.2rem;
}
.brand small{font-weight:600;color:#cbd5e1;font-size:.72rem;display:block;line-height:1;letter-spacing:.08em;text-transform:uppercase}
.main-nav{display:flex;gap:4px;align-items:center}
.main-nav a{
  color:#dbe7f3;font-weight:600;font-size:.88rem;
  padding:8px 12px;border-radius:8px;white-space:nowrap;
}
.main-nav a:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none}
.main-nav a.active{background:rgba(255,255,255,.16);color:#fff}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:1.6rem;cursor:pointer}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 70%,#17406f 100%);
  color:#fff;padding:64px 0 56px;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 200px at 80% 10%,rgba(249,115,22,.25),transparent 60%);
  pointer-events:none;
}
.hero h1{
  font-size:clamp(1.9rem,4.5vw,3rem);line-height:1.15;letter-spacing:-.02em;
  max-width:760px;font-weight:800;
}
.hero h1 .hl{color:var(--gold)}
.hero p.lede{color:#cbd5e1;font-size:1.08rem;max-width:680px;margin:16px 0 0}
.hero-meta{
  display:flex;gap:18px;flex-wrap:wrap;margin-top:22px;
  font-size:.85rem;color:#94a3b8;
}
.hero-meta span{display:flex;align-items:center;gap:6px}
.hero-ctas{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:10px;font-weight:700;font-size:.95rem;
  border:0;cursor:pointer;transition:transform .12s,box-shadow .12s;
  text-decoration:none!important;
}
.btn-cta{background:var(--cta);color:#fff;box-shadow:0 4px 14px rgba(249,115,22,.4)}
.btn-cta:hover{background:var(--cta-dark);transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.3)}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.btn-outline{background:#fff;color:var(--navy);border:2px solid var(--line)}
.btn-outline:hover{border-color:var(--navy)}
.btn-sm{padding:10px 18px;font-size:.86rem}

/* ---------- Section scaffolding ---------- */
.section{padding:52px 0}
.section-alt{background:#fff}
.kicker{
  display:inline-block;font-size:.75rem;font-weight:800;letter-spacing:.12em;
  text-transform:uppercase;color:var(--cta-dark);margin-bottom:10px;
}
.h2{font-size:clamp(1.5rem,3vw,2.1rem);letter-spacing:-.02em;font-weight:800;color:var(--navy);margin-bottom:8px}
.sub{color:var(--muted);max-width:720px;margin-bottom:28px}

/* ---------- Quick picks (top 3 hero cards) ---------- */
.quick-picks{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px;position:relative;z-index:1}
.quick-pick{
  background:#fff;border-radius:var(--radius);overflow:hidden;color:var(--ink);
  box-shadow:var(--shadow-lg);display:flex;flex-direction:column;position:relative;
  transition:transform .15s;
}
.quick-pick:hover{transform:translateY(-4px)}
.quick-pick .qp-img{height:190px;background:#eef2f7;display:flex;align-items:center;justify-content:center;overflow:hidden}
.quick-pick .qp-img img{width:100%;height:100%;object-fit:contain;padding:14px}
.qp-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.qp-rank{
  position:absolute;top:12px;left:12px;background:var(--navy);color:#fff;
  font-weight:800;font-size:.8rem;padding:6px 12px;border-radius:999px;
}
.award{
  display:inline-block;align-self:flex-start;font-size:.72rem;font-weight:800;letter-spacing:.06em;
  text-transform:uppercase;padding:5px 12px;border-radius:999px;
  background:linear-gradient(135deg,var(--gold),#f59e0b);color:#3b2f04;
}
.award.blue{background:linear-gradient(135deg,#38bdf8,#0369a1);color:#fff}
.award.green{background:linear-gradient(135deg,#4ade80,#15803d);color:#fff}
.qp-body h3{font-size:1.08rem;color:var(--navy);line-height:1.35}
.qp-specs{display:flex;flex-wrap:wrap;gap:6px}
.chip{
  font-size:.74rem;font-weight:600;background:#eef2f7;color:#334155;
  padding:4px 10px;border-radius:999px;
}
.qp-score{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:6px}
.score-num{font-size:1.6rem;font-weight:800;color:var(--navy)}
.score-bar{flex:1;height:8px;background:#e2e8f0;border-radius:99px;overflow:hidden}
.score-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--gold),var(--cta));border-radius:99px}

/* ---------- Ranking cards (full list) ---------- */
.rank-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);margin-bottom:22px;overflow:hidden;
  display:grid;grid-template-columns:110px 210px 1fr;position:relative;
}
.rank-num{
  background:var(--navy);color:#fff;display:flex;flex-direction:column;
  align-items:center;justify-content:center;padding:20px 10px;gap:4px;
}
.rank-num b{font-size:2rem;line-height:1}
.rank-num span{font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:#94a3b8}
.rank-img{background:#f1f5f9;display:flex;align-items:center;justify-content:center;padding:16px}
.rank-img img{max-height:170px;object-fit:contain;mix-blend-mode:multiply}
.rank-body{padding:22px 24px;display:flex;flex-direction:column;gap:10px}
.rank-body h3{font-size:1.22rem;color:var(--navy);letter-spacing:-.01em}
.rank-body h3 a{color:var(--navy)}
.rank-ctas{display:flex;gap:10px;margin-top:auto;flex-wrap:wrap;align-items:center}
.discount{
  position:absolute;top:14px;right:14px;background:var(--red);color:#fff;
  font-size:.75rem;font-weight:800;padding:5px 10px;border-radius:8px;
}

/* ---------- Comparison table ---------- */
.table-scroll{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line)}
table.compare{width:100%;border-collapse:collapse;background:#fff;font-size:.88rem;min-width:760px}
table.compare th{
  background:var(--navy);color:#fff;text-align:left;padding:13px 14px;
  font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;white-space:nowrap;
}
table.compare td{padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
table.compare tr:last-child td{border-bottom:0}
table.compare tr:hover td{background:#f8fafc}
table.compare td.prod{font-weight:700;color:var(--navy);min-width:190px}
table.compare .mini-score{font-weight:800;color:var(--cta-dark)}

/* ---------- Product detail sections ---------- */
.product-detail{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:30px;margin-bottom:28px;scroll-margin-top:90px;
}
.product-detail .pd-head{display:flex;gap:20px;align-items:flex-start;margin-bottom:18px;flex-wrap:wrap}
.product-detail .pd-img{
  width:200px;flex:none;background:#f1f5f9;border-radius:10px;padding:14px;
  display:flex;align-items:center;justify-content:center;
}
.product-detail .pd-img img{max-height:170px;object-fit:contain;mix-blend-mode:multiply}
.pd-title h3{font-size:1.45rem;color:var(--navy);letter-spacing:-.01em;margin:8px 0 4px}
.pd-title .pd-tag{color:var(--muted);font-size:.92rem}
.pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:20px 0}
.pros,.cons{border-radius:10px;padding:18px 20px;font-size:.92rem}
.pros{background:#f0fdf4;border:1px solid #bbf7d0}
.cons{background:#fef2f2;border:1px solid #fecaca}
.pros h4,.cons h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px}
.pros h4{color:var(--green)} .cons h4{color:var(--red)}
.pros ul,.cons ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.pros li::before{content:"✓ ";color:var(--green);font-weight:800}
.cons li::before{content:"✕ ";color:var(--red);font-weight:800}
.fit{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:0 0 18px;font-size:.92rem}
.fit div{background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:16px 18px}
.fit b{display:block;color:var(--navy);margin-bottom:4px;font-size:.85rem;text-transform:uppercase;letter-spacing:.06em}
.spec-list{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0;list-style:none}
.spec-list li{background:#eef2f7;border-radius:8px;padding:7px 12px;font-size:.82rem;font-weight:600;color:#334155}
.verdict{
  border-left:4px solid var(--gold);background:#fffbeb;border-radius:0 10px 10px 0;
  padding:16px 20px;margin:18px 0;font-style:italic;color:#573f04;
}
.verdict b{display:block;font-style:normal;color:var(--navy);margin-bottom:4px;font-size:.85rem;text-transform:uppercase;letter-spacing:.06em}

/* ---------- Category cards (homepage) ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;
  transition:transform .15s,box-shadow .15s;position:relative;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);text-decoration:none}
.cat-card .cat-icon{font-size:2rem}
.cat-card h3{color:var(--navy);font-size:1.12rem}
.cat-card p{color:var(--muted);font-size:.9rem;flex:1}
.cat-card .go{font-weight:700;color:var(--cta-dark);font-size:.9rem}
.cat-card.soon{opacity:.75}
.soon-tag{
  position:absolute;top:16px;right:16px;font-size:.68rem;font-weight:800;letter-spacing:.08em;
  text-transform:uppercase;background:#e2e8f0;color:#475569;padding:4px 10px;border-radius:999px;
}

/* ---------- Methodology / trust ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.trust-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.trust-card .t-num{font-size:1.8rem;font-weight:800;color:var(--gold)}
.trust-card h4{color:var(--navy);margin:8px 0 6px;font-size:.98rem}
.trust-card p{font-size:.88rem;color:var(--muted)}

/* ---------- TOC (sticky on category pages) ---------- */
.toc{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;margin:0 0 30px;box-shadow:var(--shadow);
}
.toc h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:10px}
.toc ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.toc a{
  font-size:.85rem;font-weight:600;background:#eef2f7;color:var(--navy-2);
  padding:7px 14px;border-radius:999px;
}
.toc a:hover{background:var(--navy);color:#fff;text-decoration:none}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;text-align:left;background:none;border:0;cursor:pointer;
  font-family:var(--font);font-size:1.02rem;font-weight:700;color:var(--navy);
  padding:18px 4px;display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq-q::after{content:"+";font-size:1.4rem;color:var(--cta-dark);flex:none;transition:transform .2s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;color:var(--muted);font-size:.95rem}
.faq-a p{padding:0 4px 18px}

/* ---------- Disclosure / verdict boxes ---------- */
.disclosure{
  background:#fffbeb;border:1px solid #fde68a;border-radius:10px;
  padding:14px 18px;font-size:.8rem;color:#92400e;margin:26px 0;
}
.final-verdict{
  background:linear-gradient(150deg,var(--navy),var(--navy-2));color:#fff;
  border-radius:var(--radius);padding:34px;box-shadow:var(--shadow-lg);
}
.final-verdict h3{font-size:1.4rem;margin-bottom:12px}
.final-verdict h3 .hl{color:var(--gold)}
.final-verdict p{color:#cbd5e1;margin-bottom:10px}
.final-verdict .btn{margin-top:12px}

/* ---------- Newsletter ---------- */
.newsletter{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);text-align:center}
.newsletter h3{color:var(--navy);margin-bottom:8px}
.newsletter p{color:var(--muted);font-size:.92rem;margin-bottom:16px}
.newsletter form{display:flex;gap:10px;max-width:440px;margin:0 auto}
.newsletter input{
  flex:1;padding:12px 16px;border:2px solid var(--line);border-radius:10px;
  font-family:var(--font);font-size:.92rem;
}
.newsletter input:focus{outline:none;border-color:var(--navy)}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy);color:#94a3b8;padding:48px 0 28px;margin-top:60px;font-size:.88rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.site-footer h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px}
.site-footer a{color:#94a3b8;display:block;padding:4px 0}
.site-footer a:hover{color:#fff}
.footer-brand{color:#fff;font-weight:800;font-size:1.1rem;margin-bottom:10px;display:block}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.78rem}

/* ---------- Breadcrumbs ---------- */
.crumbs{font-size:.82rem;color:var(--muted);margin:22px 0 6px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--navy)}

/* ---------- Article typography ---------- */
.article h2{font-size:1.5rem;color:var(--navy);margin:34px 0 12px;letter-spacing:-.01em}
.article p{margin-bottom:14px;color:#334155}
.article ul.bullets{margin:0 0 16px 20px;color:#334155}
.article ul.bullets li{margin-bottom:8px}

/* ---------- Star product feature ---------- */
.star-product{
  background:linear-gradient(150deg,#0b2545,#143a66);
  border-radius:var(--radius);overflow:hidden;color:#fff;
  display:grid;grid-template-columns:1.1fr 1fr;box-shadow:var(--shadow-lg);
  margin-top:34px;position:relative;z-index:1;border:1px solid rgba(234,179,8,.35);
}
.star-img{min-height:300px;background:#0a1c33;display:flex;align-items:center;justify-content:center;overflow:hidden}
.star-img img{width:100%;height:100%;object-fit:cover}
.star-body{padding:34px 36px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.star-badge{
  align-self:flex-start;font-size:.75rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  background:linear-gradient(135deg,var(--gold),var(--cta));color:#3b2f04;
  padding:7px 16px;border-radius:999px;
}
.star-body h2{font-size:clamp(1.5rem,3vw,2.1rem);letter-spacing:-.02em;line-height:1.2}
.star-body h2 .hl{color:var(--gold)}
.star-body p{color:#cbd5e1;font-size:.96rem}
.star-specs{display:flex;flex-wrap:wrap;gap:8px}
.star-specs .chip{background:rgba(255,255,255,.12);color:#fff}
.star-price{display:flex;align-items:baseline;gap:12px;margin-top:4px}
.star-price .now{font-size:1.9rem;font-weight:800;color:var(--gold)}
.star-price .was{color:#94a3b8;text-decoration:line-through}
.star-price .note{font-size:.8rem;color:#94a3b8}
.star-ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
@media(max-width:820px){.star-product{grid-template-columns:1fr}.star-img{min-height:200px}}

/* ---------- Responsive ---------- */
@media(max-width:960px){
  .quick-picks{grid-template-columns:1fr 1fr}
  .cat-grid{grid-template-columns:1fr 1fr}
  .trust-grid{grid-template-columns:1fr 1fr}
  .rank-card{grid-template-columns:90px 1fr}
  .rank-img{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .main-nav{
    display:none;position:absolute;top:100%;left:0;right:0;background:var(--navy);
    flex-direction:column;align-items:stretch;padding:10px 20px 18px;
  }
  .main-nav.open{display:flex}
  .nav-toggle{display:block}
  .site-header{position:sticky}
  .header-inner{position:relative}
}
@media(max-width:620px){
  .quick-picks{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr}
  .pros-cons,.fit{grid-template-columns:1fr}
  .rank-card{grid-template-columns:1fr}
  .rank-num{flex-direction:row;gap:10px;padding:12px}
  .rank-num b{font-size:1.4rem}
  .newsletter form{flex-direction:column}
  .hero{padding:44px 0 40px}
  .footer-grid{grid-template-columns:1fr}
}

.mfr-link{margin-top:10px;font-size:.84rem;color:var(--muted)}
.mfr-link a{color:var(--navy);font-weight:600;text-decoration:underline}
.mfr-link a:hover{color:var(--cta)}
.no-site{font-style:italic;color:var(--muted)}
.no-site-note{font-size:.85rem;font-style:italic;color:var(--muted);margin:10px 0 0}