:root{--bg:#f6f7f9;--paper:#fff;--ink:#1c2430;--muted:#5a6473;--line:#e1e5eb;--soft:#eef1f5;--accent:#2b63d9;--accent-d:#1f4fb5;--accent-l:#e9f0fd;--red:#dc2626;--red-l:#fef2f2;--hh:64px;--r:10px}
*{box-sizing:border-box}html{scroll-padding-top:calc(var(--hh) + 16px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.7 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
img{max-width:100%;height:auto}a{color:var(--accent-d)}a:hover{color:var(--accent)}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}.wrap.narrow{max-width:800px}
.skip{position:absolute;left:-999px;top:0;background:#000;color:#fff;padding:8px 12px;z-index:100}.skip:focus{left:8px}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:saturate(1.4) blur(6px)}
.hdr{display:flex;align-items:center;gap:20px;min-height:var(--hh)}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.12rem;color:var(--ink);text-decoration:none;letter-spacing:-.01em;white-space:nowrap}
.main-nav ul{display:flex;gap:2px;list-style:none;margin:0;padding:0}
.main-nav a{display:block;padding:8px 11px;border-radius:8px;color:var(--ink);text-decoration:none;font-size:.95rem;font-weight:500}
.main-nav a:hover,.main-nav a[aria-current]{background:var(--accent-l);color:var(--accent-d)}
.hdr-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.btn{display:inline-block;border-radius:999px;padding:9px 18px;font-weight:700;text-decoration:none;font-size:.93rem;line-height:1.2;text-align:center;border:0;cursor:pointer;font-family:inherit}
.btn-cta,.btn-primary{background:var(--accent);color:#fff}.btn-cta:hover,.btn-primary:hover{background:var(--accent-d);color:#fff}
.btn-cta{white-space:nowrap}.btn-lg{padding:14px 30px;font-size:1.05rem}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:8px;padding:10px 9px;cursor:pointer}
.nav-toggle span{display:block;height:2px;background:var(--ink);margin:4px 0;border-radius:2px}
@media (max-width:960px){
 .nav-toggle{display:block}
 .main-nav{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);display:none;box-shadow:0 8px 20px rgba(0,0,0,.06)}
 .main-nav.open{display:block}.main-nav ul{flex-direction:column;padding:8px 14px 14px}.main-nav a{padding:12px}
}
/* header never overlaps: brand may shrink and wrap, CTA and menu button keep their size */
.brand{min-width:0;flex:0 1 auto}.hdr-right{flex:none}
@media (max-width:640px){.brand{white-space:normal;line-height:1.1;font-size:.95rem}.brand span{max-width:110px}.hdr{gap:10px}}
@media (max-width:480px){.wrap.hdr{padding:0 12px}.brand{gap:6px;font-size:.86rem}.brand span{max-width:92px}.brand img{width:24px;height:24px}.btn-cta{padding:8px 11px;font-size:.78rem}.hdr{gap:8px}.hdr-right{gap:6px}.nav-toggle{width:38px;height:38px;padding:9px 8px}}
@media (max-width:370px){.brand span{display:none}}
/* crumbs + heads */
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:20px 0 0;font-size:.86rem;color:var(--muted)}
.crumbs li+li::before{content:"›";margin-right:6px;color:#98a2b3}.crumbs a{color:var(--muted)}
.page-head{text-align:center;margin:26px 0 22px}
h1{font-size:clamp(1.85rem,4.4vw,2.7rem);line-height:1.2;letter-spacing:-.02em;margin:0 0 10px}
.sub{color:var(--muted);font-size:1.1rem;max-width:700px;margin:0 auto}.byline{color:var(--muted);font-size:.9rem;margin:8px 0 0}
.offer-line{font-size:1.08rem;margin:10px 0 0}.offer-btn{margin:12px 0 0}
/* toc */
.toc{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 22px;margin:0 0 30px}
.toc-h{font-weight:700;margin:0 0 6px}.toc ol{margin:0;padding-left:20px;columns:2;column-gap:28px;font-size:.94rem}.toc li{break-inside:avoid;margin:3px 0}
@media (max-width:640px){.toc ol{columns:1}}
/* prose */
.prose h2{font-size:1.6rem;line-height:1.3;margin:2.1em 0 .6em;letter-spacing:-.01em}
.prose h3{font-size:1.22rem;line-height:1.35;margin:1.6em 0 .5em}.prose h4{font-size:1.06rem;margin:1.3em 0 .4em}
.prose p,.prose ul,.prose ol{margin:0 0 1.1em}.prose li{margin:.3em 0}
.prose table{width:100%;border-collapse:collapse;margin:1.2em 0 1.6em;font-size:.95rem;background:#fff;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.prose thead th{background:var(--accent-l);color:var(--accent-d)}.prose tbody tr:nth-child(even){background:#f9fafb}
.keybox{background:var(--accent-l);border-left:4px solid var(--accent);border-radius:var(--r);padding:16px 20px;margin:0 0 1.6em}
.keybox p:first-child{font-weight:700;margin-bottom:.4em}.keybox ul{margin:0;padding-left:20px}.keybox p:last-child{margin-bottom:0}
.note{background:#fff8e6;border-left:4px solid #f0b429;border-radius:var(--r);padding:14px 18px;margin:1.2em 0 1.5em}.note p:last-child{margin:0}
.faq-item{border:1px solid var(--line);border-radius:var(--r);padding:4px 18px;margin:0 0 12px;background:#fff}
.faq-item h3{font-size:1.08rem;margin:.9em 0 .3em}
.steps{counter-reset:s;list-style:none;padding:0}.steps li{counter-increment:s;position:relative;padding:12px 16px 12px 58px;background:#fff;border:1px solid var(--line);border-radius:var(--r);margin:0 0 10px}
.steps li::before{content:counter(s);position:absolute;left:14px;top:12px;width:30px;height:30px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:.95rem}
/* cta box */
.cta-box{background:#fff;border:1px solid #c9d8fb;border-radius:14px;padding:24px;text-align:center;margin:2em 0}
.cta-box .cta-h{font-size:1.3rem;font-weight:800;margin:0 0 .3em;letter-spacing:-.01em}.cta-box p{color:var(--muted);margin:0 0 14px}
/* bar chart (pure CSS) */
.bars{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;margin:1.2em 0 1.6em}
.bars .bar{display:grid;grid-template-columns:150px 1fr 60px;gap:10px;align-items:center;margin:8px 0;font-size:.93rem}
.bars .track{background:var(--soft);border-radius:6px;height:16px;overflow:hidden}.bars .fill{display:block;height:100%;background:var(--accent);border-radius:6px}
.bars .cap{font-size:.84rem;color:var(--muted);margin:10px 0 0}
@media (max-width:520px){.bars .bar{grid-template-columns:105px 1fr 48px;font-size:.85rem}}
/* sellers */
.sellers{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:18px 0 26px}
@media (max-width:900px){.sellers{grid-template-columns:repeat(2,1fr)}}@media (max-width:560px){.sellers{grid-template-columns:1fr}}
.seller{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 18px 20px;text-align:center;display:flex;flex-direction:column;align-items:center}
.seller img{width:120px;height:120px;border-radius:50%;object-fit:cover;border:3px solid var(--soft)}
.seller h3{font-size:1.15rem;margin:12px 0 8px}.seller h3 a{color:var(--ink);text-decoration:none}.seller h3 a:hover{color:var(--accent-d)}
.seller .stats{list-style:none;padding:0;margin:0 0 16px;width:100%;font-size:.92rem}
.seller .stats li{display:flex;justify-content:space-between;gap:10px;border-top:1px solid var(--line);padding:7px 2px;margin:0}
.seller .stats span{color:var(--muted)}.seller .stats strong{color:var(--ink)}
.btn-seller{background:var(--accent);color:#fff;margin-top:auto;width:100%;max-width:240px}.btn-seller:hover{background:var(--accent-d);color:#fff}
.seller-top{border:3px solid var(--red);box-shadow:0 8px 24px rgba(220,38,38,.12)}
.top-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--red);color:#fff;font-size:.78rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:4px 12px;border-radius:999px;white-space:nowrap}
.seller-top .btn-seller{background:var(--red)}.seller-top .btn-seller:hover{background:#b91c1c}
/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin:10px 0 30px}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px;text-decoration:none;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.card:hover{border-color:#b9cdf7;box-shadow:0 6px 18px rgba(30,60,140,.08);color:var(--ink)}
.card h3{font-size:1.08rem;line-height:1.35;margin:0 0 6px}.card p{color:var(--muted);font-size:.93rem;margin:0 0 10px;flex:1}
.card .more{color:var(--accent-d);font-weight:600;font-size:.9rem}
.related{margin-top:40px;border-top:1px solid var(--line);padding-top:10px}.related h2{font-size:1.4rem}
/* home */
.hero{background:linear-gradient(180deg,#e9effa,var(--bg));border-bottom:1px solid var(--line);padding:56px 0 44px;text-align:center}
.hero .sub{margin-bottom:24px}.hero-note{color:var(--muted);font-size:.95rem;font-weight:600;margin:12px 0 0}
.home-body{max-width:1000px;padding-top:28px}.home-body>p,.home-body>ul,.home-body>ol,.home-body>h2,.home-body>h3,.home-body>table,.home-body>.bars,.home-body>.keybox,.home-body>.note,.home-body>.faq-item,.home-body>.steps{max-width:800px;margin-left:auto;margin-right:auto}
@media (min-width:840px){.home-body>table{display:table}}
#top-rec{text-align:center}.top-rec-intro{text-align:center}
.hub-body{max-width:800px;margin:10px auto 0}
/* footer */
.site-footer{margin-top:60px;background:#eceff3;border-top:1px solid var(--line);padding:36px 0 26px;font-size:.92rem}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px}
@media (max-width:820px){.f-grid{grid-template-columns:1fr 1fr}}@media (max-width:480px){.f-grid{grid-template-columns:1fr}}
.f-about p:last-child{color:var(--muted);margin:0}
.f-h{font-size:.98rem;font-weight:700;margin:0 0 8px}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin:5px 0}
.site-footer a{color:var(--ink);text-decoration:none}.site-footer a:hover{text-decoration:underline}
.f-note{color:var(--muted);margin:26px 0 8px}.f-util,.f-copy{color:var(--muted);margin:4px 0}
/* popup */
.pop{position:fixed;inset:0;z-index:100;background:rgba(15,23,42,.55);display:flex;align-items:center;justify-content:center;padding:16px}
.pop[hidden]{display:none}
.pop-box{position:relative;background:#fff;border-radius:16px;max-width:440px;width:100%;padding:30px 26px 22px;text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.25)}
.pop-box:focus{outline:none}
.pop-x{position:absolute;top:8px;right:10px;width:40px;height:40px;border:0;background:transparent;font-size:28px;line-height:1;color:var(--muted);cursor:pointer;border-radius:8px}
.pop-x:hover{background:var(--soft)}
.pop-k{font-size:.8rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:var(--accent-d);margin:0 0 6px}
.pop-box h2{font-size:1.4rem;line-height:1.25;margin:0 0 10px}.pop-box p{color:var(--muted);margin:0 0 18px}
.pop-go{display:block;width:100%;padding:13px 18px;font-size:1rem}
.pop-stay{margin-top:10px;background:none;border:0;color:var(--muted);font:inherit;font-size:.95rem;text-decoration:underline;cursor:pointer;padding:8px}
body.pop-open{overflow:hidden}
/* seller box (sections on best-of pages) */
.seller-box{display:flex;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:12px 0 18px}
.seller-box img,.avatar{width:96px;height:96px;border-radius:50%;object-fit:cover;flex:none;border:3px solid var(--soft)}
.avatar{display:flex;align-items:center;justify-content:center;background:var(--accent-l);color:var(--accent-d);font-weight:800;font-size:1.6rem}
.sb-main{flex:1;min-width:0}.sb-name{font-weight:800;font-size:1.1rem;margin:0 0 4px!important}
.sb-stats{list-style:none;padding:0!important;margin:0 0 10px!important;display:flex;flex-wrap:wrap;gap:4px 18px;font-size:.92rem}
.sb-stats li{margin:0!important}.sb-stats span{color:var(--muted)}.sb-stats strong{margin-left:6px}
.sb-cta{margin:0!important;display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px}.sb-cta .btn-seller{width:auto;max-width:none;padding:10px 22px}
.sb-more{font-weight:600;font-size:.93rem}
@media (max-width:520px){.seller-box{flex-direction:column;text-align:center}.sb-stats,.sb-cta{justify-content:center}}
.rank{display:inline-block;background:var(--accent);color:#fff;border-radius:999px;font-size:.8rem;font-weight:800;padding:2px 10px;margin-right:8px;vertical-align:middle}
.pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:0 0 1.2em}.pros-cons>div{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:12px 16px}
.pros-cons p{font-weight:700;margin:0 0 4px!important}.pros-cons ul{margin:0!important;padding-left:18px;font-size:.95rem}
@media (max-width:600px){.pros-cons{grid-template-columns:1fr}}
.btn-sm{padding:7px 12px;font-size:.82rem;white-space:nowrap}
.seller-box.seller-top{border:3px solid var(--red)}
.udimi-start{background:#fff;border:2px solid #c9d8fb;border-radius:14px;padding:20px 22px;margin:1.8em 0}
.udimi-start .us-h{font-weight:800;font-size:1.25rem;margin:0 0 .6em}.udimi-start .steps{margin-bottom:12px}.us-cta{text-align:center;margin:0!important}
.hub-h{font-size:1.45rem;margin:34px 0 6px}

/* traffic swirl additions */
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin:0}
.btn-ghost{background:#fff;color:var(--accent-d);border:2px solid #c9d8fb}.btn-ghost:hover{border-color:var(--accent);color:var(--accent-d)}
.tool-box{background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:var(--r);padding:16px 20px;margin:1.4em 0 1.6em}
.tool-box .tb-h{font-weight:800;font-size:1.1rem;margin:0 0 .3em}.tool-box p{margin:0 0 .8em}
.btn-tool{background:var(--ink);color:#fff}.btn-tool:hover{background:#334155;color:#fff}
.verdict{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:0 0 1.6em}
.verdict p:first-child{font-weight:800;margin-bottom:.3em}.verdict p:last-child{margin-bottom:0}
.vs-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:0 0 1.4em}.vs-grid>div{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 18px}
.vs-grid p:first-child{font-weight:800;margin:0 0 .4em}.vs-grid ul{margin:0;padding-left:18px}
@media (max-width:600px){.vs-grid{grid-template-columns:1fr}}
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:1em 0 1.5em;font-size:.93rem}
.flow span{background:#fff;border:1px solid #c9d8fb;border-radius:8px;padding:8px 12px;font-weight:600}.flow b{color:var(--muted);font-weight:400}