:root{
  --text:#17233B;--text-2:#526077;--bg:#fff;--bg-soft:#F7F9FC;--border:#E5EAF0;
  --primary:#2563EB;--primary-dark:#1D4ED8;--pos:#16845B;--pos-bg:#EAF6F0;--warn:#B97816;--warn-bg:#FBF3E4;
  --radius:14px;--shadow:0 1px 2px rgba(23,35,59,.05),0 8px 24px rgba(23,35,59,.06);
  --font:'Inter',ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:112px;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.7;font-size:17px;overflow-x:hidden}
img,svg{max-width:100%}
a{color:var(--primary);text-underline-offset:3px}
a:hover{color:var(--primary-dark)}
:focus-visible{outline:3px solid var(--primary);outline-offset:2px;border-radius:4px}
.site-footer :focus-visible{outline-color:#fff}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:absolute;left:-999px;top:8px;background:var(--text);color:#fff;padding:10px 14px;border-radius:8px;z-index:100}
.skip-link:focus{left:8px}
.container{max-width:1180px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}

/* header */
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;flex-direction:column;justify-content:center;gap:3px;min-width:0}
.brand-logo{display:block;line-height:0;border-radius:6px}
.brand-logo img{display:block;height:30px;width:auto;max-width:100%}
.brand-tagline{font-size:12px;line-height:1.2;font-weight:500;color:var(--text-2)}
.primary-nav{display:flex;gap:6px}
.primary-nav a{color:var(--text-2);text-decoration:none;font-weight:600;font-size:14.5px;padding:8px 12px;border-radius:8px}
.primary-nav a:hover{color:var(--text);background:var(--bg-soft)}
.primary-nav a[aria-current]{color:var(--primary);background:var(--bg-soft)}
.nav-toggle{display:none;background:none;border:1px solid var(--border);border-radius:10px;width:44px;height:44px;color:var(--text);cursor:pointer;place-items:center}
.disclosure-bar{background:var(--bg-soft);border-top:1px solid var(--border);font-size:12.5px;color:var(--text-2);line-height:1.5;padding:7px 0}

/* hero */
.hero{background:linear-gradient(180deg,var(--bg-soft),#fff);border-bottom:1px solid var(--border);padding:48px 0 40px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:40px;align-items:start}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--primary);text-transform:uppercase;margin:0 0 14px}
h1{font-size:clamp(32px,4.6vw,48px);line-height:1.12;letter-spacing:-.025em;margin:0 0 16px;font-weight:800}
.subhead{font-size:19px;color:var(--text-2);margin:0 0 22px;line-height:1.6}
.byline{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:14px;color:var(--text-2);padding-top:16px;border-top:1px solid var(--border)}
.byline strong{color:var(--text)}
.kicker-note{font-size:13.5px;color:var(--text-2);background:#fff;border:1px solid var(--border);border-radius:10px;padding:10px 14px;margin-top:16px}

/* cards */
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}
.overview h2{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-2);margin:0 0 14px}
.overview .pname{font-size:26px;font-weight:800;margin:0 0 2px;letter-spacing:-.01em}
.overview dl{margin:14px 0 0;display:grid;gap:12px}
.overview dt{font-size:12px;font-weight:700;color:var(--text-2);text-transform:uppercase;letter-spacing:.07em}
.overview dd{margin:2px 0 0;font-size:15px;line-height:1.55}
.tag{display:inline-block;font-size:12px;font-weight:600;padding:3px 9px;border-radius:999px;border:1px solid var(--border);background:var(--bg-soft);color:var(--text-2)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 20px;border-radius:10px;font-weight:700;font-size:15px;text-decoration:none;border:1px solid transparent;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(37,99,235,.25)}
.btn-primary:hover{background:var(--primary-dark);color:#fff}
.btn-secondary{background:#fff;color:var(--text);border-color:#CBD5E1}
.btn-secondary:hover{background:var(--bg-soft);color:var(--text)}
.btn-block{width:100%}
.btn-affiliate{min-width:200px}
.aff-note{font-size:12.5px;margin:10px 0 0;color:var(--text-2)}
.ext::after{content:"\2197";font-size:.9em;opacity:.8}

/* layout */
.layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;padding:48px 0 72px}
.toc{position:sticky;top:118px;align-self:start;font-size:14.5px;max-height:calc(100vh - 140px);overflow-y:auto;overscroll-behavior:contain}
.toc p{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-2);margin:0 0 10px}
.toc ol{list-style:none;margin:0;padding:0;border-left:2px solid var(--border)}
.toc a{display:block;padding:7px 14px;margin-left:-2px;border-left:2px solid transparent;color:var(--text-2);text-decoration:none;line-height:1.4}
.toc a:hover{color:var(--text)}
.toc a.active{color:var(--primary);border-left-color:var(--primary);font-weight:600}
.toc-mobile{display:none}
.article{min-width:0;max-width:780px}
.article h2{font-size:clamp(26px,3.2vw,34px);line-height:1.2;letter-spacing:-.02em;margin:64px 0 16px;font-weight:800}
.article section:first-child h2,.article h2:first-child{margin-top:0}
.article h3{font-size:21px;line-height:1.3;margin:36px 0 8px;letter-spacing:-.01em}
.article p{margin:0 0 18px}
.article ul,.article ol{padding-left:22px;margin:0 0 18px}
.article li{margin-bottom:8px}
.lead{font-size:19px;color:var(--text-2)}
.verify{display:inline-block;font-size:12px;font-weight:700;color:#8A5508;background:var(--warn-bg);border-radius:6px;padding:1px 7px;margin-left:4px;white-space:nowrap}
.feature{border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;margin:18px 0;background:#fff}
.feature h3{margin-top:0}
.feature dl{display:grid;grid-template-columns:150px 1fr;gap:6px 16px;margin:12px 0 0;font-size:15.5px}
.feature dt{font-weight:700;color:var(--text-2);font-size:13px;text-transform:uppercase;letter-spacing:.06em;padding-top:2px}
.feature dd{margin:0}

/* verdict */
.verdict-box{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:30px 32px}
.verdict-box p{line-height:1.75;margin-bottom:16px}
.verdict-box p:first-of-type{font-size:18px}
.verdict-box p:last-child{margin-bottom:0;padding-top:16px;border-top:1px solid var(--border);font-weight:600}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}
.rec{border:1px solid var(--border);border-radius:var(--radius);padding:22px;background:#fff;display:flex;flex-direction:column}
.rec h3{margin:0 0 12px;font-size:19px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.rec ul{padding-left:20px;margin:0 0 22px;flex:1}
.rec li{margin-bottom:10px}
.rec.emph{border-color:#BFD2FA;box-shadow:var(--shadow)}

/* pricing */
.price-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:22px 0}
.price-card{border:1px solid var(--border);border-radius:var(--radius);padding:22px;background:#fff}
.price-card h3{margin:0;font-size:19px}
.price{font-size:30px;font-weight:800;letter-spacing:-.02em;margin:6px 0 2px}
.price small{font-size:14px;font-weight:500;color:var(--text-2)}
.price-card ul{list-style:none;padding:0;margin:14px 0 0;font-size:15px}
.price-card li{padding:6px 0;border-top:1px solid var(--border);margin:0}
.price-card .best{font-size:14px;color:var(--text-2);margin-top:12px}
.note{border-left:4px solid var(--warn);background:var(--warn-bg);padding:14px 18px;border-radius:0 10px 10px 0;font-size:15px;margin:22px 0}
.note.info{border-color:var(--primary);background:#EEF4FE}

/* pros cons */
.pc{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0}
.pc>div{border:1px solid var(--border);border-radius:var(--radius);padding:22px;background:#fff}
.pc h3{margin:0 0 14px;font-size:19px}
.pc .pros{border-top:4px solid var(--pos)}
.pc .cons{border-top:4px solid var(--warn)}
.pc ul{list-style:none;padding:0;margin:0}
.pc li{padding:14px 0;border-top:1px solid var(--border);font-size:15.5px;line-height:1.6;margin:0}
.pc li:first-child{border-top:0;padding-top:0}
.pc li strong{display:block;margin-bottom:3px;font-size:16px}
.pc .pros li strong::before{content:"+ ";color:var(--pos)}
.pc .cons li strong::before{content:"\2212  ";color:var(--warn)}

/* table */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin:22px 0;-webkit-overflow-scrolling:touch}
table{border-collapse:separate;border-spacing:0;width:100%;min-width:720px;font-size:15px;line-height:1.6}
caption{text-align:left;padding:14px 16px;font-size:13px;color:var(--text-2);caption-side:bottom;border-top:1px solid var(--border)}
th,td{padding:16px 18px;text-align:left;vertical-align:top;border-bottom:1px solid var(--border)}
td+td,th+th{border-left:1px solid var(--border)}
tbody th+td{border-left:1px solid var(--border)}
thead th{background:var(--bg-soft);font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--text);border-bottom:2px solid #CBD5E1}
tbody th{font-weight:700;width:18%;min-width:130px;background:var(--bg-soft);color:var(--text);position:sticky;left:0;z-index:1}
thead th:first-child{position:sticky;left:0;z-index:2}
tbody tr:nth-child(even) td{background:#FBFCFE}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:#F3F7FE}

/* cta */
.cta{background:linear-gradient(135deg,#F2F6FE,#fff);border:1px solid #CADBFB;border-radius:var(--radius);padding:28px;margin:40px 0;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta h3{margin:0 0 6px;font-size:22px}
.cta p{margin:0;color:var(--text-2);font-size:15.5px;max-width:460px}
.cta .cta-act{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.cta small{font-size:12.5px;color:var(--text-2);max-width:260px;line-height:1.45}
.sponsored-label{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-2);border:1px solid var(--border);border-radius:999px;padding:2px 10px;margin-bottom:8px;background:#fff}

/* use cases */
.use-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:22px 0}
.use{border:1px solid var(--border);border-radius:var(--radius);padding:22px;background:#fff;transition:box-shadow .2s,transform .2s}
.use:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.use:last-child:nth-child(odd){grid-column:1/-1}
.use h3{margin:0 0 8px;font-size:18px}
.use p{font-size:15.5px;margin:0 0 10px}
.use .fit{display:inline-block;font-weight:700;font-size:13px;padding:3px 10px;border-radius:999px;background:var(--pos-bg);color:#0F6B49}
.use .fit.alt{background:#EEF4FE;color:var(--primary-dark)}
.use .fit.caution{background:var(--warn-bg);color:var(--warn)}

/* faq */
.faq details{border:1px solid var(--border);border-radius:12px;margin:10px 0;background:#fff}
.faq summary{cursor:pointer;list-style:none;padding:18px 52px 18px 20px;font-weight:700;font-size:17px;position:relative;line-height:1.4}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:24px;font-weight:400;color:var(--text-2)}
.faq details[open] summary::after{content:"\2212"}
.faq details[open] summary{border-bottom:1px solid var(--border)}
.faq .ans{padding:16px 20px 6px}

/* sources */
.sources li{font-size:15px;word-break:break-word}
.method-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:18px 0}
.method-grid div{border:1px solid var(--border);border-radius:12px;padding:16px;background:var(--bg-soft);font-size:15px}
.method-grid strong{display:block;margin-bottom:2px}

/* footer */
.site-footer{background:var(--text);color:#CBD5E1;padding:48px 0 24px;font-size:14.5px}
.site-footer a{color:#fff}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
.footer-brand{color:#fff;font-weight:800;font-size:18px;margin:0 0 10px}
.footer-h{color:#fff;font-weight:700;margin:0 0 10px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);margin-top:32px;padding-top:20px;font-size:13px;color:#94A3B8}

/* simple pages */
.page{max-width:780px;margin:0 auto;padding:56px 20px 80px}
.page h1{font-size:clamp(30px,4vw,40px)}
.page h2{font-size:24px;margin:40px 0 10px;letter-spacing:-.01em}
.page ul{padding-left:22px}
.placeholder-box{background:var(--warn-bg);border:1px dashed var(--warn);border-radius:12px;padding:16px 18px;font-size:15px;margin:18px 0}

@media (max-width:960px){
  html{scroll-padding-top:16px}
  .site-header{position:relative;top:auto}
  .hero-grid{grid-template-columns:1fr}
  .layout{grid-template-columns:1fr;gap:0;padding-top:28px}
  .toc{display:none}
  .toc-mobile{display:block;margin-bottom:28px;border:1px solid var(--border);border-radius:12px;background:var(--bg-soft)}
  .toc-mobile summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;padding:10px 16px;font-weight:700;font-size:15.5px;list-style:none}
  .toc-mobile summary::-webkit-details-marker{display:none}
  .toc-mobile summary::after{content:"";width:9px;height:9px;border-right:2px solid var(--text-2);border-bottom:2px solid var(--text-2);transform:rotate(45deg);margin-top:-4px;flex:none}
  .toc-mobile[open] summary::after{transform:rotate(-135deg);margin-top:4px}
  .toc-mobile[open] summary{border-bottom:1px solid var(--border)}
  .toc-mobile ol{margin:0;padding:6px 16px 10px 40px;font-size:15.5px;max-height:60vh;overflow-y:auto}
  .toc-mobile li{padding:0}
  .toc-mobile li a{display:block;padding:10px 0;text-decoration:none;font-weight:500}
  .nav-toggle{display:grid}
  .primary-nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;border-bottom:1px solid var(--border);flex-direction:column;padding:10px 20px 16px;box-shadow:var(--shadow)}
  .primary-nav.open{display:flex}
  .primary-nav a{padding:12px}
}
@media (max-width:700px){
  th,td{padding:12px 14px}
  tbody th{min-width:96px;width:96px;font-size:14px}
  table{font-size:14.5px}
  body{font-size:16.5px}
  .two-col,.pc,.price-grid,.use-grid,.method-grid,.footer-grid{grid-template-columns:1fr}
  .feature dl{grid-template-columns:1fr;gap:2px}
  .feature dt{margin-top:8px}
  .cta{padding:22px}
  .btn{width:100%}
  .hero{padding:32px 0 28px}
  .subhead{font-size:17.5px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{.site-header,.toc,.cta,.nav-toggle{display:none}}