:root{
  --ink:#0a1020; --deep:#101a33; --card:#16223f; --line:#25355c;
  --text:#e7ecf7; --muted:#a9b6d4; --amber:#ffb020; --amber-dk:#e08c00;
  --sky:#4fc3f7; --good:#38d39f; --bad:#ff6b6b; --radius:10px;
}
*{box-sizing:border-box}
html,body{width:100%;overflow-x:hidden;margin:0;padding:0}
body{background-color:var(--ink);color:var(--text);
  font-family:'Barlow',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
a{color:var(--sky)}
a:hover{color:#8fd8ff}
img{max-width:100%;height:auto}

#progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--amber);z-index:60}
.site-head{position:sticky;top:0;z-index:50;background:rgba(8,13,26,.95);
  border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;gap:16px;flex-wrap:nowrap;min-height:62px;
  position:relative}
.brand-logo{font-weight:800;font-size:1.16rem;color:#fff;text-decoration:none;white-space:nowrap}
.nav-wrap{margin-left:auto}
.nav-main{display:flex;flex-wrap:nowrap;gap:2px;list-style:none;margin:0;padding:0}
.nav-main a{display:block;padding:8px 9px;color:var(--muted);text-decoration:none;
  font-size:.93rem;font-weight:600;border-radius:6px;white-space:nowrap}
.nav-main a:hover,.nav-main a[aria-current="page"]{color:#fff;background:#1b2846}
.btn{display:inline-block;background:var(--amber);color:#20160a;font-weight:800;
  text-decoration:none;padding:11px 16px;border-radius:8px;white-space:nowrap;border:0;
  cursor:pointer;font-size:.95rem}
.btn:hover{background:var(--amber-dk);color:#20160a}
.cta-head{padding:9px 14px;font-size:.9rem}
.burger{display:none;margin-left:auto;background:transparent;border:1px solid var(--line);
  border-radius:8px;width:44px;height:44px;color:#fff;font-size:1.15rem;line-height:1}

main{display:block;padding:26px 0 40px}
.crumbs{font-size:.86rem;color:var(--muted);margin:0 0 14px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:#fff}
h1{font-size:2.05rem;line-height:1.22;margin:.2em 0 .5em;color:#fff;font-weight:800}
h2{font-size:1.45rem;margin:1.7em 0 .5em;color:#fff;font-weight:700}
h3{font-size:1.12rem;margin:1.3em 0 .4em;color:var(--amber);font-weight:700}
p{margin:0 0 1em}
.lede{font-size:1.08rem;color:#dfe7f8;background:var(--deep);border-left:3px solid var(--amber);
  padding:14px 16px;border-radius:0 var(--radius) var(--radius) 0}
figure{margin:22px 0}
figure img{display:block;width:90%;margin:0 auto;border-radius:var(--radius);
  box-shadow:0 10px 30px rgba(0,0,0,.45);cursor:zoom-in}
figcaption{text-align:center;color:var(--muted);font-size:.87rem;margin-top:8px}
ul,ol{margin:0 0 1.1em;padding-left:1.2em}
li{margin:.35em 0}
ul.specs{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px}
ul.specs li{background:var(--card);border:1px solid var(--line);border-radius:8px;
  padding:10px 12px;font-size:.95rem}
ol.steps{counter-reset:s;list-style:none;padding:0}
ol.steps li{counter-increment:s;position:relative;padding:10px 12px 10px 46px;margin:8px 0;
  background:var(--card);border:1px solid var(--line);border-radius:8px}
ol.steps li::before{content:counter(s);position:absolute;left:12px;top:10px;width:24px;height:24px;
  border-radius:50%;background:var(--amber);color:#20160a;font-weight:800;text-align:center;
  line-height:24px;font-size:.85rem}
blockquote.note{margin:18px 0;padding:14px 16px;background:rgba(255,176,32,.10);
  border:1px solid rgba(255,176,32,.35);border-radius:var(--radius);color:#f6ecd8;font-size:1rem}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.col{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:4px 16px 10px}
.col.pros h3{color:var(--good)}
.col.cons h3{color:var(--bad)}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 1.2em}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:.95rem}
th,td{border:1px solid var(--line);padding:9px 11px;text-align:left}
th{background:var(--deep);color:#fff}

.tabs{margin:18px 0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
.tabbar{display:flex;flex-wrap:wrap;gap:4px;padding:8px;border-bottom:1px solid var(--line)}
.tab{background:transparent;border:1px solid var(--line);color:var(--muted);border-radius:7px;
  padding:8px 13px;font-weight:700;cursor:pointer;font-size:.9rem;min-height:44px}
.tab.is-active{background:var(--amber);color:#20160a;border-color:var(--amber)}
.tabpane{display:none;padding:6px 16px 2px}
.tabpane.is-active{display:block}

.calc{margin:20px 0;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:6px 16px 16px}
.calc label{display:block;margin:12px 0 4px;font-weight:600;font-size:.95rem}
.calc input[type=range]{width:100%;accent-color:var(--amber);height:34px}
.calcline{margin:.3em 0;color:var(--muted)}
.calcline strong{color:var(--amber);font-size:1.05rem}
.note{font-size:.92rem;color:#c6d1e8}

.faq{margin:26px 0}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:8px;margin:8px 0}
.faq summary{cursor:pointer;padding:13px 15px;font-weight:700;color:#fff;min-height:44px;
  list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--amber);font-weight:800}
.faq details[open] summary::after{content:"\2212"}
.faq .ans{padding:0 15px 12px;color:var(--muted)}

.cta{margin:30px 0 10px;padding:20px 18px;text-align:center;border-radius:var(--radius);
  background:linear-gradient(135deg,#1b2846,#25365e);border:1px solid var(--line)}
.cta h2{margin:.1em 0 .3em}
.cta p{color:var(--muted);margin-bottom:14px}

.site-foot{border-top:1px solid var(--line);background:#070b16;margin-top:40px;padding:26px 0 18px}
.foot-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px}
.foot-grid h3{color:#fff;font-size:.98rem;margin:0 0 8px}
.foot-grid ul{list-style:none;padding:0;margin:0}
.foot-grid a{color:var(--muted);text-decoration:none;font-size:.92rem}
.foot-grid a:hover{color:#fff}
.age{display:inline-block;border:2px solid var(--bad);color:var(--bad);border-radius:50%;
  width:38px;height:38px;line-height:34px;text-align:center;font-weight:800;margin-bottom:8px}
.legal{border-top:1px solid var(--line);margin-top:18px;padding-top:12px;color:#7a89ab;
  font-size:.84rem;text-align:center}
#top{position:fixed;right:16px;bottom:16px;width:46px;height:46px;border-radius:50%;
  background:var(--amber);color:#20160a;border:0;font-size:1.2rem;font-weight:800;cursor:pointer;
  display:none;z-index:55}
#top.show{display:block}
#lightbox{position:fixed;inset:0;background:rgba(4,7,14,.92);z-index:80;display:flex;
  align-items:center;justify-content:center;padding:20px}
#lightbox[hidden]{display:none}
#lightbox img{max-width:96%;max-height:92%;border-radius:8px}

@media (max-width:980px){
  .nav-main a{padding:8px 6px;font-size:.86rem}
  .cta-head{padding:8px 11px;font-size:.84rem}
}
@media (max-width:820px){
  body{font-size:16px}
  .wrap{max-width:100%;padding:0 22px}
  .head-row{gap:10px;min-height:58px}
  .burger{display:block}
  .nav-wrap{margin-left:0;position:static}
  .nav-main{display:none}
  .nav-wrap.open .nav-main{display:flex;flex-direction:column;position:absolute;left:0;right:0;
    top:100%;background-color:#0b1220;border-bottom:1px solid var(--line);
    padding:10px 22px 14px;gap:2px;z-index:51}
  .nav-main a{padding:12px 4px;font-size:1rem;min-height:44px}
  h1{font-size:1.55rem}
  h2{font-size:1.25rem}
  ul.specs{grid-template-columns:1fr}
  .cols{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:14px}
  figure img{width:100%}
  table{min-width:460px}
}