/* BK Ranking, sampled from layout-screenshots/Screenshot 2026-08-24 093305.png (desktop, table list mode)
   and mobile-card-screenshots/Screenshot 2026-08-24 093328.png (phone card mechanics only) */

:root{
  --page:#F2EDF7;
  --panel:#FFFFFF;
  --panel-alt:#DBF1EC;
  --panel-tint:#E8E1EE;
  --ink:#1B0F26;
  --body:#4B4155;
  --border:#D9CFE3;
  --action:#5B2A86;
  --action-dark:#48206B;
  --accent2:#1FA98A;
  --gold:#F2C230;
  --gold-ink:#1B0F26;
  --white:#FFFFFF;

  --font-display:"Poppins","Segoe UI",Arial,sans-serif;
  --font-body:"Inter","Segoe UI",Helvetica,Arial,sans-serif;

  --radius-s:6px;
  --radius-m:10px;
  --radius-l:18px;
  --radius-pill:999px;

  --shadow-card:0 2px 6px rgba(27,15,38,.08);
  --container:1180px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto;}}

body{
  margin:0;
  background:var(--page);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:inherit;}
.container{max-width:var(--container);margin-inline:auto;padding-inline:1.5rem;}

h1,h2,h3{font-family:var(--font-display);color:var(--ink);line-height:1.12;margin:0 0 .6em;font-weight:800;}
h1{font-size:clamp(2rem,4vw,2.85rem);}
h2{font-size:clamp(1.4rem,2.4vw,1.9rem);}
h3{font-size:1.1rem;font-weight:700;}
p{margin:0 0 1rem;color:var(--body);}

.eyebrow{
  display:inline-flex;flex-wrap:wrap;align-items:baseline;justify-content:flex-start;
  row-gap:.25rem;column-gap:.5rem;background:var(--panel-tint);color:var(--action);
  font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:.4rem .8rem;border-radius:var(--radius-pill);margin-bottom:1rem;line-height:1.4;
}
@media (max-width:700px){.eyebrow{font-size:.62rem;padding:.35rem .7rem;column-gap:.4rem;}}

/* header */
.site-header{background:var(--panel);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;}
.site-header .container{display:flex;align-items:center;justify-content:space-between;min-height:64px;padding-block:.6rem;}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;}
.brand-mark{width:36px;height:36px;flex:none;}
.brand-word{font-family:var(--font-display);font-weight:800;font-size:1.15rem;letter-spacing:-.01em;}
.brand-word b{color:var(--accent2);}
.brand-tag{display:block;font-size:.6rem;letter-spacing:.12em;text-transform:uppercase;color:var(--body);margin-top:-2px;}

.nav-toggle{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.nav-btn{display:none;align-items:center;gap:.5rem;background:none;border:1px solid var(--border);border-radius:var(--radius-s);padding:.5rem .8rem;font:inherit;cursor:pointer;color:var(--ink);}
.nav-toggle:focus-visible + .nav-btn{outline:2px solid var(--action);outline-offset:2px;}
.bars{position:relative;width:18px;height:2px;background:var(--ink);display:block;}
.bars::before,.bars::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);}
.bars::before{top:-6px;} .bars::after{top:6px;}
.nav-txt-close{display:none;}
.nav-toggle:checked + .nav-btn .nav-txt-open{display:none;}
.nav-toggle:checked + .nav-btn .nav-txt-close{display:inline;}
.site-nav ul{list-style:none;display:flex;gap:1.6rem;margin:0;padding:0;}
.site-nav a{text-decoration:none;font-weight:700;font-size:.9rem;color:var(--ink);padding:.4rem 0;border-bottom:2px solid transparent;}
.site-nav a:hover,.site-nav a:focus-visible{border-bottom-color:var(--action);}
@media (max-width:900px){
  .nav-btn{display:inline-flex;}
  .site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--panel);border-bottom:1px solid var(--border);padding:.5rem 1.5rem 1.2rem;}
  .nav-toggle:checked ~ .site-nav{display:block;}
  .site-nav ul{flex-direction:column;gap:0;}
  .site-nav a{display:flex;align-items:center;min-height:44px;}
}

/* hero */
.hero{padding-block:2.4rem 1.6rem;}
@media (max-width:700px){.hero{padding-block:1rem .6rem;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:2rem;align-items:start;}
@media (min-width:901px){.hero-grid{grid-template-columns:1.5fr 1fr;}}
.hero-copy{text-align:left;}
.hero-lede{max-width:60ch;font-size:1.05rem;}
@media (max-width:700px){
  h1{font-size:1.5rem;margin-bottom:.5rem;}
  .hero-lede{font-size:.92rem;margin-bottom:.6rem;}
}

.byline{display:flex;align-items:center;gap:.8rem;margin-top:1.1rem;border:1px solid var(--border);background:var(--panel-tint);border-radius:var(--radius-m);padding:.7rem 1rem;}
.byline-name{font-weight:800;font-size:.9rem;white-space:nowrap;}
.byline-role{font-size:.78rem;color:var(--body);}
.byline-role .long{display:inline;} .byline-role .short{display:none;}
.byline-stats{margin-left:auto;padding-left:1rem;border-left:1px solid var(--border);display:flex;gap:1rem;font-size:.78rem;color:var(--body);white-space:nowrap;}
.byline-stats strong{display:block;color:var(--ink);font-size:.92rem;font-family:var(--font-display);}
@media (max-width:360px){.byline{padding:.55rem .7rem;gap:.55rem;} .byline-name{font-size:.8rem;} .byline-stats{font-size:.68rem;gap:.6rem;}}

/* mobile read-more collapse */
.hero-more-toggle{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.hero-more{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.hero-more-toggle:checked ~ .hero-more{max-height:40rem;}
.hero-more-btn{display:inline-flex;align-items:center;gap:.3rem;margin-top:.3rem;border:1px solid var(--action);color:var(--action);font-weight:700;font-size:.8rem;cursor:pointer;padding:.4rem .9rem;border-radius:var(--radius-pill);}
.hero-more-btn:focus-visible{outline:2px solid var(--action);outline-offset:2px;}
.hero-more-btn .show-less{display:none;}
.hero-more-toggle:checked ~ .hero-more-btn .show-more{display:none;}
.hero-more-toggle:checked ~ .hero-more-btn .show-less{display:inline;}
@media (prefers-reduced-motion: reduce){.hero-more{transition:none;}}
@media (min-width:701px){.hero-more{max-height:none;overflow:visible;} .hero-more-btn{display:none;}}

/* editor's choice widget */
.editors-choice{border:2px solid var(--action);border-radius:var(--radius-l);background:var(--panel-alt);padding:1.2rem;box-shadow:var(--shadow-card);}
@media (max-width:900px){.editors-choice{display:none;}}
.editors-choice .ec-label{display:inline-flex;align-items:center;gap:.3rem;font-size:.68rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--white);background:var(--action);padding:.3rem .7rem;border-radius:var(--radius-pill);margin-bottom:.9rem;}
.ec-logo{width:64px;height:64px;border-radius:var(--radius-m);display:flex;align-items:center;justify-content:center;background:var(--white);margin-bottom:.8rem;border:1px solid var(--border);}
.ec-logo img{max-height:40px;max-width:78%;}
.editors-choice h3{margin-bottom:.2rem;}
.ec-offer{background:var(--white);border-left:3px solid var(--action);border-radius:var(--radius-s);padding:.6rem .8rem;font-size:.95rem;margin:.7rem 0;}
.ec-offer strong{color:var(--action);}
.ec-terms{list-style:none;padding:0;margin:0 0 1rem;font-size:.8rem;color:var(--body);}
.ec-terms li{padding-left:1.1rem;position:relative;margin-bottom:.35rem;}
.ec-terms li::before{content:"•";position:absolute;left:0;color:var(--accent2);font-weight:700;}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;background:var(--gold);color:var(--gold-ink);font-weight:800;font-size:.92rem;text-decoration:none;border:none;border-radius:var(--radius-pill);padding:.8rem 1.2rem;width:100%;cursor:pointer;line-height:1.2;}
.btn:hover,.btn:focus-visible{filter:brightness(0.94);}

/* ranked list, table mode */
.ranked-section{padding-block:1.2rem 2rem;}
@media (max-width:700px){.ranked-section{padding-block:.4rem 1.4rem;}}
.rank-table-wrap{margin-top:1.2rem;border:1px solid var(--border);border-radius:var(--radius-m);overflow:hidden;}
table.rank-table{width:100%;border-collapse:collapse;background:var(--panel);}
table.rank-table caption{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
table.rank-table thead th{
  background:var(--action);color:var(--white);text-align:left;
  font-size:.7rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;
  padding:.7rem 1rem;
}
table.rank-table td{padding:.85rem 1rem;border-bottom:1px solid var(--border);vertical-align:middle;}
table.rank-table tbody tr:last-child td{border-bottom:none;}
table.rank-table tbody tr:nth-child(odd){background:var(--panel-tint);}
.rt-symbol{display:flex;align-items:center;gap:.7rem;min-width:14rem;}
.rt-rank{font-family:var(--font-display);font-weight:800;color:var(--action);font-size:1.1rem;width:1.6rem;text-align:center;flex:none;}
.rt-mark{width:64px;height:44px;border:1px solid var(--border);border-radius:var(--radius-s);background:var(--white);display:flex;align-items:center;justify-content:center;flex:none;}
.rt-mark img{max-height:28px;max-width:80%;}
.rt-name{font-weight:800;font-size:.95rem;}
.rt-offer strong{color:var(--action);}
.rt-badge{display:inline-block;background:var(--action);color:var(--white);font-size:.62rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;padding:.15rem .5rem;border-radius:var(--radius-pill);margin-left:.4rem;vertical-align:middle;}

.list-note{font-size:.78rem;color:var(--body);margin-top:1rem;}

/* Mobile ranked card (mrc-list / .mrc): separate markup from the desktop table,
   not a reflow of it. It never scrolls sideways, unlike the supporting compare table. */
.mrc-list{display:none;}
@media (max-width:700px){
  .rank-table-wrap{display:none;}
  .mrc-list{display:flex;flex-direction:column;gap:.9rem;margin-top:1.2rem;}
  .mrc{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-l);padding:1rem;position:relative;}
  .mrc.is-top{border-left:4px solid var(--action);}
  .mrc-head{display:flex;align-items:center;gap:.7rem;margin-bottom:.75rem;}
  .mrc-badge{width:26px;height:26px;border-radius:50%;background:var(--ink);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:800;flex-shrink:0;}
  .mrc.is-top .mrc-badge{background:var(--action);}
  .mrc-logo{width:44px;height:40px;border:1px solid var(--border);background:var(--white);border-radius:var(--radius-s);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
  .mrc-logo img{max-width:34px;max-height:26px;object-fit:contain;}
  .mrc-name-block{flex:1;min-width:0;}
  .mrc-name-block .name{font-weight:800;font-size:.96rem;display:block;}
  .mrc-info{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--border);padding-top:.75rem;margin-bottom:.85rem;}
  .mrc-info-col{padding-inline:.4rem;}
  .mrc-info-col:first-child{padding-left:0;}
  .mrc-info-col + .mrc-info-col{border-left:1px solid var(--border);}
  .mrc-info-label{font-size:.64rem;text-transform:uppercase;letter-spacing:.04em;color:var(--body);display:block;margin-bottom:.15rem;}
  .mrc-info-value{font-weight:800;color:var(--ink);display:block;}
  .mrc-cta{border-radius:var(--radius-pill);padding:.9rem 1rem;width:100%;}
}

/* how we rank */
.rank-method{padding-block:2rem;}
.method-grid{display:grid;grid-template-columns:1fr;gap:1rem;margin-top:1.4rem;}
@media (min-width:561px) and (max-width:980px){.method-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:981px){.method-grid{grid-template-columns:repeat(4,1fr);}}
.method-card{border:1px solid var(--border);border-radius:var(--radius-m);background:var(--panel);padding:1.1rem;text-align:center;}
.method-card .num{width:34px;height:34px;border-radius:50%;background:var(--action);color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:800;margin:0 auto .6rem;font-family:var(--font-display);}
.method-card p{font-size:.88rem;margin:0;}

/* detailed operator review card */
.review-card{border:1px solid var(--border);border-radius:var(--radius-l);background:var(--panel);padding:1.4rem;margin-bottom:1.6rem;box-shadow:var(--shadow-card);}
.review-head{display:flex;align-items:flex-start;gap:.9rem;margin-bottom:1rem;}
.review-rank{flex:none;width:34px;height:34px;border-radius:50%;background:var(--action);color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:800;font-family:var(--font-display);}
.review-logo{flex:none;width:72px;height:48px;border:1px solid var(--border);border-radius:var(--radius-s);background:var(--white);display:flex;align-items:center;justify-content:center;}
.review-logo img{max-width:80%;max-height:32px;}
.review-id{flex:1;min-width:0;}
.review-id h3{margin-bottom:.1rem;}
.review-tagline{font-size:.76rem;font-weight:800;letter-spacing:.03em;text-transform:uppercase;color:var(--action);}
.review-score{flex:none;text-align:right;font-family:var(--font-display);font-weight:800;font-size:1.5rem;color:var(--action);line-height:1;}
.review-score small{display:block;font-family:var(--font-body);font-weight:700;color:var(--body);font-size:.66rem;text-transform:uppercase;}
.review-callout{background:var(--panel-tint);border-left:3px solid var(--action);border-radius:var(--radius-s);padding:.7rem .9rem;font-size:.92rem;margin-bottom:1rem;}
.review-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(9rem,1fr));gap:0;border:1px solid var(--border);border-radius:var(--radius-m);overflow:hidden;margin-bottom:1.1rem;}
.review-stat{padding:.7rem .9rem;border-right:1px solid var(--border);border-bottom:1px solid var(--border);}
.review-stat:last-child{border-right:none;}
.review-stat .lbl{display:block;font-size:.64rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:var(--body);margin-bottom:.2rem;}
.review-stat .val{font-weight:800;font-size:.9rem;color:var(--ink);}
.review-bars{display:grid;grid-template-columns:repeat(auto-fit,minmax(9rem,1fr));gap:1rem;margin-bottom:1.1rem;}
.review-bar .lbl{display:flex;justify-content:space-between;font-size:.76rem;margin-bottom:.3rem;color:var(--body);}
.review-bar .lbl strong{color:var(--ink);}
.review-bar .track{height:6px;border-radius:var(--radius-pill);background:var(--panel-tint);overflow:hidden;}
.review-bar .fill{height:100%;background:var(--action);border-radius:var(--radius-pill);}
.review-body p{font-size:.93rem;margin-bottom:.85rem;}
.review-pc{display:grid;grid-template-columns:1fr;gap:1rem;margin:1.1rem 0;}
@media (min-width:640px){.review-pc{grid-template-columns:1fr 1fr;}}
.review-pc > div{border:1px solid var(--border);border-radius:var(--radius-m);padding:.9rem 1rem;}
.review-pc h4{margin:0 0 .5rem;font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;}
.review-pc.pros h4{color:var(--accent2);}
.review-pc.cons h4{color:#B23A5A;}
.review-pc ul{list-style:none;margin:0;padding:0;}
.review-pc li{font-size:.84rem;padding-left:1.2rem;position:relative;margin-bottom:.5rem;color:var(--body);}
.review-pc.pros li::before{content:"✓";position:absolute;left:0;color:var(--accent2);font-weight:800;}
.review-pc.cons li::before{content:"✕";position:absolute;left:0;color:#B23A5A;font-weight:800;}

/* article */
.article-section{padding-block:2rem;}
.article-layout{display:grid;grid-template-columns:1fr;gap:2rem;}
@media (min-width:1100px){.article-layout{grid-template-columns:minmax(0,1fr) 260px;}}
.article-body{max-width:70ch;margin-inline:auto;}
@media (min-width:1100px){.article-body{margin-inline:0;}}
.article-body h2{margin-top:2rem;}
.article-toc{display:none;}
@media (min-width:1100px){
  .article-toc{display:block;position:sticky;top:5.5rem;align-self:start;border:1px solid var(--border);border-radius:var(--radius-m);background:var(--panel);padding:1.1rem;counter-reset:toc;}
  .article-toc h3{font-size:.88rem;margin-bottom:.7rem;}
  .article-toc ol{list-style:none;margin:0;padding:0;}
  .article-toc li{counter-increment:toc;margin-bottom:.55rem;font-size:.84rem;}
  .article-toc li::before{content:counter(toc)". ";color:var(--action);font-weight:800;}
  .article-toc a{text-decoration:none;color:var(--body);}
  .article-toc a:hover{color:var(--action);}
}

/* supporting compare table, scrolls sideways below 700px, unlike the ranked list */
.compare-wrap{overflow-x:auto;margin:1.4rem 0;border:1px solid var(--border);border-radius:var(--radius-m);}
table.compare{width:100%;border-collapse:collapse;font-size:.88rem;min-width:640px;}
table.compare caption{text-align:left;padding:.8rem 1rem;font-weight:800;background:var(--panel-tint);}
table.compare th,table.compare td{text-align:left;padding:.65rem 1rem;border-bottom:1px solid var(--border);}
table.compare thead th{background:var(--panel-tint);font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--body);}
table.compare tbody tr:last-child td{border-bottom:none;}

/* faq */
.faq{padding-block:1.5rem 2.5rem;}
.faq-item{border-bottom:1px solid var(--border);padding:1rem 0;}
.faq-item summary{font-weight:800;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:1rem;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";color:var(--action);font-size:1.2rem;}
.faq-item[open] summary::after{content:"–";}
.faq-item p{margin-top:.6rem;}

/* generic content pages */
.page-hero{padding-block:2rem 1rem;border-bottom:1px solid var(--border);background:var(--panel-tint);}
.page-content{padding-block:2rem;max-width:75ch;margin-inline:auto;}
.page-content h2{margin-top:1.8rem;}
.breadcrumb{font-size:.78rem;color:var(--body);padding-top:1rem;text-transform:uppercase;letter-spacing:.06em;}

/* footer */
.site-footer{border-top:1px solid var(--border);background:var(--panel);margin-top:2rem;padding-block:2.2rem;font-size:.85rem;color:var(--body);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:1.6rem;}
@media (min-width:701px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;}}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:.4rem;}
.footer-links a{text-decoration:none;}
.footer-links a:hover{color:var(--action);}
.footer-note{margin-top:1.6rem;padding-top:1.2rem;border-top:1px solid var(--border);font-size:.76rem;}

/* back to top, always visible, no scroll-timeline */
.to-top{position:fixed;right:16px;bottom:16px;width:42px;height:42px;border-radius:50%;background:var(--action);border:none;cursor:pointer;z-index:60;display:flex;align-items:center;justify-content:center;opacity:1;visibility:visible;}
.to-top::before{content:"";width:9px;height:9px;border-left:2px solid var(--white);border-top:2px solid var(--white);transform:rotate(45deg) translateY(2px);}

/* accessibility */
.site-nav a:focus-visible,.footer-links a:focus-visible{outline:2px solid var(--action);outline-offset:2px;}