:root{
  --page:#f5f7fb;--ink:#0f1b3d;--muted:#5b6785;--navy:#0b1b4d;--indigo:#3b2bd6;--violet:#7a4bff;--coral:#ff6b4a;--line:#dfe4f0;
  --tint:#eef0ff;--card:#fff;--r:16px;
  --shadow:0 1px 2px rgba(15,27,61,.05),0 10px 28px rgba(15,27,61,.08);
  --grad:linear-gradient(135deg,#3b2bd6,#7a4bff);
  --font:system-ui,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--page);color:var(--ink);font:400 17px/1.65 var(--font);overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--indigo);text-underline-offset:3px}
a:hover{color:var(--navy)}
:focus-visible{outline:3px solid var(--violet);outline-offset:2px;border-radius:4px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:8px 14px;border-radius:8px;z-index:50}
.skip:focus{left:8px}

/* ---------- sidebar (details block on mobile, fixed navy rail on desktop) */
.side{background:var(--navy);color:#dfe4ff;padding:16px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:#fff;margin-bottom:12px}
.logo:hover{color:#fff}
.mono{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--indigo),var(--coral));color:#fff;font-weight:800;font-size:18px;letter-spacing:.02em}
.logotxt{font-weight:800;font-size:19px}
.toc summary{cursor:pointer;font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:#b7c0ee;padding:8px 0}
.toc ol{list-style:none;margin:0;padding:0}
.toc li{margin:0}
.toc a{display:block;color:#dfe4ff;text-decoration:none;font-size:15px;line-height:1.35;padding:7px 10px;border-radius:10px}
.toc a:hover,.toc a[aria-current]{background:rgba(255,255,255,.1);color:#fff}
.toc ol ol{margin:2px 0 6px 10px;border-left:1px solid rgba(255,255,255,.18)}
.toc ol ol a{font-size:14px;color:#c4ccf3;padding:5px 10px}

.main{min-width:0}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:12px 16px;display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;justify-content:space-between}
.tagline{margin:0;font-size:15px;color:var(--muted)}
.tagline strong{color:var(--ink);margin-right:6px}
.topbar nav{display:flex;gap:4px}
.topbar nav a{font-size:15px;font-weight:600;text-decoration:none;color:var(--ink);padding:6px 12px;border-radius:10px}
.topbar nav a:hover{background:var(--tint);color:var(--indigo)}
main{padding:16px;max-width:1120px;margin:0 auto}

/* ---------- hero */
.hero{background:linear-gradient(135deg,#0b1b4d 0%,#3b2bd6 62%,#7a4bff 100%);color:#fff;border-radius:24px;padding:28px 22px;display:grid;gap:24px;margin:8px 0 24px;box-shadow:var(--shadow)}
.hero.small{padding:26px 22px}
.pill{display:inline-block;margin:0 0 14px;padding:5px 14px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);font-size:14px;font-weight:600}
h1{margin:0 0 14px;font-size:28px;line-height:1.15;font-weight:800;letter-spacing:-.01em}
.lead{margin:0;font-size:18px;color:#e9ecff}
.lead a{color:#fff;font-weight:600}
.heroimg img{border-radius:18px;box-shadow:0 18px 40px rgba(5,10,40,.4);margin-inline:auto}
.intro{margin:0 0 8px;padding:20px 22px;font-size:17px}

/* ---------- cards & headings */
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);border:1px solid var(--line)}
.sec{margin-top:40px}
h2{position:relative;margin:0 0 16px;padding-left:18px;font-size:26px;line-height:1.25;font-weight:800;scroll-margin-top:16px}
h2::before{content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:6px;border-radius:6px;background:linear-gradient(180deg,var(--indigo),var(--coral))}
h3{margin:0 0 8px;font-size:20px;line-height:1.3;font-weight:700;scroll-margin-top:16px}
p{margin:0 0 14px}
.sec>p:last-child{margin-bottom:0}

/* ---------- criteria cards */
.grid{list-style:none;margin:20px 0;padding:0;display:grid;gap:14px;grid-template-columns:1fr}
.crit li{padding:20px;position:relative;transition:transform .18s,box-shadow .18s}
.crit li:hover{transform:translateY(-3px)}
.crit h3{font-size:18px}
.crit p{margin:0;color:var(--muted);font-size:16px}
.num{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;font-weight:800;margin-bottom:12px;box-shadow:0 8px 18px rgba(59,43,214,.3)}

/* ---------- tables */
.tablewrap{overflow-x:auto;margin:18px 0;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);-webkit-overflow-scrolling:touch}
.tablewrap:focus-visible{outline-offset:-3px}
table{border-collapse:collapse;width:100%;font-size:15.5px;line-height:1.5}
table.rank{min-width:940px;font-size:14.5px}
table.rank td,table.rank th{padding:12px 10px}
table.rank td:nth-child(3){min-width:150px}
table.rank td:last-child{min-width:130px}
table.fit,table.vs{min-width:640px}
th{background:#fafbff;color:var(--muted);font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;text-align:left;padding:13px 14px;border-bottom:1px solid var(--line);line-height:1.35;vertical-align:bottom}
td{padding:14px;vertical-align:top;border-bottom:1px solid var(--line)}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:#fafbff}
tr.top,tr.top:hover{background:linear-gradient(90deg,#e9e7ff,#f6f4ff)}
.ns{color:var(--muted);font-style:italic}
.co{font-weight:700}
.rk{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--tint);color:var(--indigo);font-weight:800;font-size:14px}
tr.top .rk{background:var(--grad);color:#fff}
tbody th{padding:14px}

/* ---------- figures */
.fig{margin:22px 0;padding:14px}
.fig img{margin-inline:auto;border-radius:10px}
.fig figcaption{margin:10px 4px 2px;font-size:14.5px;color:var(--muted);text-align:center}

/* ---------- reviews */
.review{margin:22px 0;padding:22px;border-top:5px solid var(--line)}
.review.toprev{border-top-color:var(--indigo);background:linear-gradient(180deg,#f3f2ff 0,#fff 130px)}
.review h3{font-size:22px;margin-bottom:10px}
.official{display:inline-block;margin:0 0 16px;padding:4px 12px;border-radius:999px;background:var(--tint);font-size:15px;font-weight:600;color:var(--muted)}
.callout{margin:14px 0;padding:14px 16px;border-radius:12px;border-left:5px solid var(--indigo);background:var(--tint)}
.callout.consider{background:#fff5e1;border-left-color:#e29a00}
.callout.next{background:#ffefe9;border-left-color:var(--coral)}
.visit{margin:18px 0 0}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:12px;background:var(--grad);color:#fff;font-weight:700;font-size:16px;text-decoration:none;box-shadow:0 8px 22px rgba(59,43,214,.38);transition:transform .15s,box-shadow .15s}
.btn::after{content:"\2192"}
.btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(59,43,214,.5)}
.btn.light{background:#fff;color:var(--indigo);box-shadow:0 8px 22px rgba(0,0,0,.25)}
.btn.light:hover{color:var(--navy)}

/* ---------- accordions */
.accordion{display:grid;gap:10px;margin:16px 0}
.acc{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}
.acc[open]{border-color:#c9c5ff;box-shadow:0 6px 18px rgba(59,43,214,.09)}
.acc summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 18px;font-weight:700;font-size:17px}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:"+";display:grid;place-items:center;flex:none;width:28px;height:28px;border-radius:50%;background:var(--tint);color:var(--indigo);font-size:20px;font-weight:700;line-height:1;transition:transform .2s}
.acc[open] summary::after{content:"\2212";background:var(--grad);color:#fff}
.acc summary:hover{background:#fafbff}
.acc summary h3{margin:0;font-size:17px;font-weight:700}
.accbody{padding:0 18px 6px}
.accbody p{margin:0 0 12px}

/* ---------- steps */
.steps{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:14px}
.step{padding:18px 20px;display:grid;gap:8px}
.step p{margin:0}
.stepno{justify-self:start;padding:4px 12px;border-radius:999px;background:var(--grad);color:#fff;font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}

/* ---------- conclusion */
.cta{background:linear-gradient(135deg,#0b1b4d,#3b2bd6 70%,#7a4bff);color:#fff;border-radius:22px;padding:26px 24px;box-shadow:var(--shadow)}
.cta a:not(.btn){color:#fff;font-weight:600}
.cta p:last-child{margin-bottom:0}
.fine{margin-top:16px;font-size:15px;color:var(--muted)}

/* ---------- content pages */
.prose{padding:24px 22px;margin-bottom:8px}
.prose h2{font-size:22px;margin-top:26px}
.prose h2:first-child{margin-top:0}
.prose p:last-child{margin-bottom:0}
.maplist{margin:0;padding-left:20px}
.maplist li{margin:6px 0}

/* ---------- footer */
.footer{max-width:1120px;margin:32px auto 0;padding:24px 16px 36px;border-top:1px solid var(--line);color:var(--muted);font-size:15px}
.footer nav{display:flex;flex-wrap:wrap;gap:6px 18px;margin-bottom:14px}
.footer a{color:var(--ink);text-decoration:none;font-weight:600}
.footer a:hover{color:var(--indigo);text-decoration:underline}
.footer p{margin:0 0 4px}
.footer .age{color:var(--ink);font-weight:600}

/* ---------- breakpoints */
@media (min-width:640px){
  .grid.crit{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps li:last-child{grid-column:1/-1}
  h1{font-size:34px}
}
@media (min-width:960px){
  body{padding-left:270px}
  .side{position:fixed;inset:0 auto 0 0;width:270px;overflow-y:auto;padding:24px 16px}
  .logo{margin-bottom:26px}
  .toc summary{pointer-events:none;cursor:default}
  .toc summary::marker,.toc summary::-webkit-details-marker{display:none}
  .topbar{padding:14px 32px}
  main{padding:24px 32px}
  .hero{grid-template-columns:1.05fr 1fr;align-items:center;padding:40px;gap:32px}
  .hero.small{grid-template-columns:1fr;padding:34px 40px}
  h1{font-size:38px}
  .grid.crit{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .steps li:nth-child(4){grid-column:auto}
  .steps li:last-child{grid-column:auto}
  .review{padding:30px}
  .footer{padding-inline:32px}
}
@media (min-width:1300px){main,.footer{max-width:1400px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}