:root{
  --bg:#0f1216; --panel:#161b22; --panel2:#1c2530; --ink:#e8edf3; --mut:#9fb0c3;
  --line:#28323f; --red:#e11d2a; --red2:#ff3b48; --amber:#ffb020;
  --ok:#3ad07f; --bad:#ff6a5a; --rad:14px; --shell:1100px;
}
*{box-sizing:border-box}
html,body{width:100%;overflow-x:hidden}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:17px;line-height:1.72;-webkit-font-smoothing:antialiased}
.shell{max-width:var(--shell);margin:0 auto;padding:0 22px}
a{color:var(--red2)}
img{max-width:100%;height:auto}
h1,h2,h3,h4{font-family:"Sora",system-ui,sans-serif;line-height:1.22;color:#fff;font-weight:800}
h1{font-size:2.05em;margin:.15em 0 .5em;letter-spacing:-.01em}
h2{font-size:1.5em;margin:1.8em 0 .5em}
h3{font-size:1.17em;margin:1.3em 0 .4em;font-weight:700}
p{margin:0 0 1.05em}
strong{color:#fff}
.column ul,.column ol{margin:0 0 1.2em;padding-left:1.35em}
.column li{margin:.4em 0}

/* topbar */
.topbar{position:sticky;top:0;z-index:40;background:rgba(15,18,22,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar-row{display:flex;align-items:center;gap:16px;min-height:64px}
.brand{color:#fff;font-family:"Sora",sans-serif;font-weight:800;font-size:1.3em;
  text-decoration:none;letter-spacing:.01em;white-space:nowrap}
.brand::before{content:"";display:inline-block;width:9px;height:9px;margin-right:8px;
  border-radius:50%;background:var(--red);box-shadow:0 0 12px var(--red2);vertical-align:middle}
.menu{margin-left:auto;display:flex;align-items:center;gap:16px}
.menu ul{list-style:none;display:flex;gap:2px;margin:0;padding:0;flex-wrap:nowrap}
.menu a{color:var(--mut);text-decoration:none;font-weight:600;font-size:.92em;
  padding:8px 9px;border-radius:8px;white-space:nowrap}
.menu a:hover,.menu a[aria-current]{color:#fff;background:rgba(225,29,42,.16)}
.btn{display:inline-block;border:0;border-radius:10px;font-weight:700;cursor:pointer;
  text-decoration:none;text-align:center;transition:transform .05s,filter .15s}
.btn-go{background:linear-gradient(135deg,var(--red),var(--red2));color:#fff;
  padding:10px 18px;box-shadow:0 6px 18px rgba(225,29,42,.4)}
.btn-go:hover{transform:translateY(-1px);filter:brightness(1.06)}
.bar-cta{font-size:.9em;white-space:nowrap}
.burger{display:none;margin-left:auto;background:transparent;border:0;cursor:pointer;
  width:44px;height:44px;flex-direction:column;justify-content:center;gap:5px;padding:0}
.burger span{display:block;height:2px;width:24px;background:#fff;margin:0 auto;border-radius:2px;transition:.2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* trail */
.trail{background:#12171d;border-bottom:1px solid var(--line);font-size:.88em}
.trail .shell{padding:9px 22px;color:var(--mut)}
.trail a{color:var(--red2);text-decoration:none}
.trail span{color:var(--mut)}

/* main */
.column{padding-top:26px;padding-bottom:44px}
.hero{margin:0 0 1.5em}
.hero img{width:100%;border-radius:var(--rad);display:block;border:1px solid var(--line);
  box-shadow:0 16px 40px rgba(0,0,0,.5)}
.lede{font-size:1.12em;color:#f0f4f9;background:linear-gradient(180deg,var(--panel2),var(--panel));
  border:1px solid var(--line);border-left:4px solid var(--red);border-radius:var(--rad);padding:16px 18px}

/* verdict cards */
.split{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:1.6em 0}
.box{background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);padding:18px 20px}
.box h3{margin-top:0}
.plus li::marker{content:"▲ ";color:var(--ok)}
.minus li::marker{content:"▼ ";color:var(--bad)}

/* spec table */
.tscroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 1.3em}
.spec{width:100%;border-collapse:collapse;font-size:.97em;background:var(--panel)}
.spec th,.spec td{border:1px solid var(--line);padding:10px 13px;text-align:left;vertical-align:top}
.spec th{background:var(--panel2);width:42%;color:#fff;font-weight:700;font-family:"Sora",sans-serif}
.cmp td:first-child{font-weight:600}
.cmp .win{color:var(--ok);font-weight:700}

/* notice */
.notice{background:rgba(255,176,32,.09);border:1px solid rgba(255,176,32,.32);
  border-left:4px solid var(--amber);border-radius:var(--rad);padding:14px 18px;margin:1.3em 0}
.notice.red{background:rgba(225,29,42,.09);border-color:rgba(225,29,42,.36);border-left-color:var(--red)}
.note{font-size:.85em;color:var(--mut)}

/* numbered steps */
.numbered{counter-reset:st;list-style:none;padding-left:0}
.numbered li{position:relative;padding:2px 0 2px 46px;margin:.6em 0}
.numbered li::before{counter-increment:st;content:counter(st);position:absolute;left:0;top:0;
  width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--red),var(--red2));
  color:#fff;font-weight:800;font-family:"Sora",sans-serif;display:flex;align-items:center;justify-content:center}

/* cta */
.cta{background:radial-gradient(120% 140% at 0% 0%,#25161a,var(--panel2));
  border:1px solid var(--line);border-radius:16px;padding:24px;margin:1.9em 0;text-align:center}
.cta h3{margin-top:0}
.cta .btn-go{font-size:1.05em;padding:13px 28px;margin-top:6px}
.cta p{color:var(--mut);margin-bottom:.3em}

/* tabs */
.switch{margin:1.4em 0}
.switch-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.switch-tabs button{background:var(--panel2);border:1px solid var(--line);color:var(--mut);
  padding:8px 15px;border-radius:22px;font-weight:600;cursor:pointer;font-size:.92em}
.switch-tabs button[aria-selected="true"]{background:var(--red);color:#fff;border-color:var(--red)}
.pane{display:none;background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);padding:16px 18px}
.pane.on{display:block}

/* tool */
.tool{background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);padding:18px 20px;margin:1.5em 0}
.tool label{display:block;font-weight:600;margin:.6em 0 .25em;color:#fff}
.tool input[type=range]{width:100%;accent-color:var(--red)}
.tool-out{font-size:1.05em;margin-top:12px;padding:12px 14px;background:var(--panel2);border-radius:10px}
.tool-out b{color:var(--red2)}

/* faq */
.qa h2{margin-bottom:.3em}
.qa details{background:var(--panel);border:1px solid var(--line);border-radius:11px;margin:.6em 0;padding:0 16px}
.qa summary{cursor:pointer;font-weight:700;color:#fff;font-family:"Sora",sans-serif;
  padding:14px 0;list-style:none;position:relative;padding-right:30px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";position:absolute;right:2px;top:11px;font-size:1.4em;color:var(--red2)}
.qa details[open] summary::after{content:"–"}
.qa details[open] summary{border-bottom:1px solid var(--line)}
.qa details p{padding-top:12px}

/* footer */
.foot{background:#0b0e12;border-top:1px solid var(--line);margin-top:34px;padding:34px 0 14px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:26px}
.foot-brand{color:#fff;font-family:"Sora",sans-serif;font-weight:800;font-size:1.25em;margin-bottom:8px}
.foot h3{color:#fff;font-size:1em;margin:0 0 10px}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin:.32em 0}
.foot a{color:var(--mut);text-decoration:none}
.foot a:hover{color:#fff;text-decoration:underline}
.foot-mini{font-size:.87em;color:#7f8ea0}
.help{display:flex;flex-direction:column;gap:2px}
.age{display:inline-block;margin-top:10px;border:2px solid var(--red);color:var(--red2);
  border-radius:9px;padding:2px 10px;font-weight:800;font-family:"Sora",sans-serif}
.foot-legal{border-top:1px solid var(--line);margin-top:24px;padding-top:14px;font-size:.81em;color:#6f7d8e}

.up{position:fixed;right:18px;bottom:18px;width:46px;height:46px;border-radius:12px;border:0;
  background:var(--red);color:#fff;font-size:1.3em;cursor:pointer;opacity:0;pointer-events:none;
  transition:opacity .2s;box-shadow:0 8px 20px rgba(225,29,42,.5);z-index:50}
.up.show{opacity:1;pointer-events:auto}

@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:760px){
  body{font-size:16px}
  h1{font-size:1.55em}h2{font-size:1.26em}h3{font-size:1.08em}
  .burger{display:flex}
  .menu{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;
    align-items:stretch;gap:0;background:#12171d;padding:8px 0 14px;border-top:1px solid var(--line)}
  .menu.open{display:flex}
  .menu ul{flex-direction:column;gap:0;padding:0 12px}
  .menu a{padding:12px 10px;display:block}
  .bar-cta{margin:10px 12px 0;padding:12px}
  .split{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}