*,*::before,*::after{box-sizing:border-box}
:root{
  --field:#0c1424; --field2:#101c30; --panel:#152539; --panel2:#1b2f47;
  --line:#26405f; --ink:#e8eff8; --dim:#a9bcd4; --frost:#63e6e2; --moon:#cdd9ec;
  --amber:#ffb454; --good:#6ee7a8; --bad:#ff8a8a; --cta:#19b6b0; --cta2:#0f8f8a;
}
html,body{width:100%;overflow-x:hidden}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(180deg,#0a1120,#0c1424 40%,#0a1322);
  color:var(--ink);font:16px/1.68 "Segoe UI",Roboto,-apple-system,"Helvetica Neue",Arial,sans-serif;
  -webkit-text-size-adjust:100%}
a{color:var(--frost);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{line-height:1.24;color:#f4f8ff;margin:1.5em 0 .5em;font-weight:700}
h1{font-size:1.92rem;margin-top:.2em;letter-spacing:.2px}
h2{font-size:1.42rem;padding-bottom:.28em;border-bottom:1px solid var(--line)}
h3{font-size:1.14rem;color:var(--moon)}
p{margin:.7em 0}
.wrap{max-width:1060px;margin:0 auto;padding:0 22px}

/* header */
.mast{position:sticky;top:0;z-index:40;background:rgba(9,16,29,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.mrow{display:flex;align-items:center;gap:16px;min-height:62px;flex-wrap:nowrap}
.brandmark{font-weight:800;font-size:1.18rem;color:#fff;letter-spacing:.3px;
  white-space:nowrap;display:inline-flex;align-items:center;gap:9px}
.brandmark .glyph{width:26px;height:26px;flex:0 0 26px;border-radius:7px;
  background:radial-gradient(circle at 35% 30%,var(--frost),#1a6f9c);
  box-shadow:0 0 12px rgba(99,230,226,.5)}
.brandmark:hover{text-decoration:none}
.burger{display:none;margin-left:auto;background:var(--panel2);color:#fff;
  border:1px solid var(--line);border-radius:9px;width:44px;height:40px;
  font-size:1.35rem;cursor:pointer;align-items:center;justify-content:center}
.navwrap{margin-left:auto;display:flex;align-items:center;gap:6px;flex-wrap:nowrap}
.mainnav{display:flex;align-items:center;gap:2px;flex-wrap:nowrap}
.mainnav a{color:var(--moon);padding:8px 10px;border-radius:8px;font-size:.93rem;
  white-space:nowrap}
.mainnav a:hover,.mainnav a.here{background:var(--panel2);color:#fff;text-decoration:none}
.cta-top{margin-left:8px;background:linear-gradient(90deg,var(--cta),var(--cta2));
  color:#04201f;font-weight:800;padding:9px 15px;border-radius:9px;white-space:nowrap}
.cta-top:hover{text-decoration:none;filter:brightness(1.07)}

/* breadcrumb */
.crumbs{border-bottom:1px solid var(--line);background:rgba(12,20,36,.6)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:9px 0;
  font-size:.85rem;color:var(--dim)}
.crumbs li::after{content:"›";margin-left:6px;color:var(--line)}
.crumbs li:last-child::after{content:""}
.crumbs a{color:var(--dim)}

/* hero */
main{display:block;padding-bottom:40px}
.hero{margin:18px 0 6px;border-radius:16px;overflow:hidden;border:1px solid var(--line);
  box-shadow:0 18px 44px rgba(0,0,0,.4)}
.hero img{width:100%;height:auto;aspect-ratio:1168/784;object-fit:cover}
.snip{font-size:1.06rem;color:#dbe6f4;background:var(--panel);border:1px solid var(--line);
  border-left:4px solid var(--frost);border-radius:12px;padding:14px 18px;margin:14px 0}

/* panels + generic */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:16px 20px;margin:16px 0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.verdict{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.verdict .col h3{margin-top:.2em}
ul.facts,ul.plain,ol.steplist{margin:.6em 0;padding-left:0;list-style:none}
ul.facts li,ul.plain li{position:relative;padding:6px 0 6px 26px;border-bottom:1px dashed var(--line)}
ul.facts li::before{content:"";position:absolute;left:4px;top:14px;width:9px;height:9px;
  border-radius:50%;background:var(--frost);box-shadow:0 0 8px var(--frost)}
ul.pros li,ul.cons li{list-style:none;padding:5px 0 5px 26px;position:relative}
ul.pros,ul.cons{padding-left:0;margin:.5em 0}
ul.pros li::before{content:"✓";position:absolute;left:2px;color:var(--good);font-weight:800}
ul.cons li::before{content:"✕";position:absolute;left:2px;color:var(--bad);font-weight:800}
ol.steplist{counter-reset:st;padding-left:0}
ol.steplist li{position:relative;padding:8px 0 8px 44px;margin:4px 0;counter-increment:st;
  border-bottom:1px dashed var(--line)}
ol.steplist li::before{content:counter(st);position:absolute;left:0;top:8px;width:30px;height:30px;
  background:var(--panel2);border:1px solid var(--frost);color:var(--frost);border-radius:9px;
  display:flex;align-items:center;justify-content:center;font-weight:800}

/* tables */
.table-scroll{overflow-x:auto;margin:14px 0;border:1px solid var(--line);border-radius:12px}
table{border-collapse:collapse;width:100%;min-width:440px;font-size:.94rem}
th,td{padding:10px 13px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--panel2);color:#fff;font-weight:700}
tr:last-child td{border-bottom:none}

/* pill tabs (interactive) */
.pill-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 0}
.pill{background:var(--panel2);border:1px solid var(--line);color:var(--moon);
  padding:8px 14px;border-radius:999px;cursor:pointer;font-size:.92rem}
.pill.on{background:var(--frost);color:#06222a;border-color:var(--frost);font-weight:700}
.tabp{display:none;animation:fade .25s ease}
.tabp.on{display:block}
@keyframes fade{from{opacity:0}to{opacity:1}}

/* calculator (interactive) */
.calc{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin:16px 0}
.calc label{display:block;font-size:.85rem;color:var(--dim);margin:10px 0 4px}
.calc input[type=range]{width:100%}
.calc .out{font-size:1.2rem;color:var(--frost);font-weight:800;margin-top:10px}
.calc .rowline{display:flex;justify-content:space-between;gap:12px;font-size:.92rem;
  padding:5px 0;border-bottom:1px dashed var(--line)}

/* faq */
.faq details{border:1px solid var(--line);border-radius:11px;margin:10px 0;background:var(--panel);
  overflow:hidden}
.faq summary{cursor:pointer;padding:13px 16px;font-weight:600;color:#fff;list-style:none;
  display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--frost);font-weight:800}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding:0 16px 14px;color:var(--dim)}

/* cta band */
.ctaband{background:linear-gradient(120deg,#123a4d,#0f2c46);border:1px solid var(--frost);
  border-radius:16px;padding:22px;margin:26px 0;text-align:center}
.ctaband h3{margin:.1em 0 .4em;color:#fff}
.btn{display:inline-block;background:linear-gradient(90deg,var(--cta),var(--cta2));
  color:#04201f;font-weight:800;padding:13px 30px;border-radius:11px;font-size:1.05rem}
.btn:hover{text-decoration:none;filter:brightness(1.08)}
.muted{color:var(--dim);font-size:.86rem}

/* footer */
.foot{border-top:1px solid var(--line);background:#080f1c;margin-top:24px;padding:26px 0 40px}
.foot .cols{display:flex;flex-wrap:wrap;gap:26px;justify-content:space-between}
.foot h4{color:#fff;font-size:1rem;margin:0 0 8px;border:none}
.foot a{color:var(--dim);display:block;padding:3px 0;font-size:.92rem}
.foot .legal{margin-top:20px;border-top:1px solid var(--line);padding-top:16px;color:var(--dim);
  font-size:.82rem}
.foot .badge{display:inline-block;border:1px solid var(--line);border-radius:7px;padding:2px 8px;
  margin-right:8px;color:var(--moon);font-size:.8rem}

/* back to top */
#toplink{position:fixed;right:18px;bottom:18px;width:46px;height:46px;border-radius:50%;
  background:var(--panel2);border:1px solid var(--frost);color:var(--frost);font-size:1.3rem;
  display:none;align-items:center;justify-content:center;cursor:pointer;z-index:50}
#toplink.show{display:flex}

@media(max-width:860px){
  h1{font-size:1.6rem}
  .burger{display:inline-flex}
  .navwrap{display:none;position:absolute;left:0;right:0;top:62px;flex-direction:column;
    align-items:stretch;gap:2px;background:#0b1526;border-bottom:1px solid var(--line);
    padding:10px 22px 16px;margin-left:0}
  .navwrap.open{display:flex}
  .mainnav{flex-direction:column;align-items:stretch;gap:2px}
  .mainnav a{padding:11px 8px;border-bottom:1px solid var(--line)}
  .cta-top{margin:10px 0 0;text-align:center}
  .grid2,.verdict{grid-template-columns:1fr}
  .mast{position:relative}
}