:root{
  --night:#0a0e19; --deep:#111827; --panel:#161d31; --panel-2:#1d2540;
  --line:#2a3350; --moon:#eef2fb; --mute:#a7b0c8;
  --amber:#f5a524; --amber-soft:#ffce70; --teal:#39d3bb; --danger:#ff6b6b;
  --radius:14px; --wrap:1140px;
}
*{box-sizing:border-box}
html,body{width:100%;overflow-x:hidden;margin:0;padding:0}
body{
  background:radial-gradient(1200px 600px at 80% -100px,#1b2440 0,var(--night) 60%) fixed,var(--night);
  color:var(--moon);
  font-family:'Sora',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  font-size:17px;line-height:1.72;font-weight:300;
}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
a{color:var(--amber-soft);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-weight:600;line-height:1.25;color:#fff;margin:0 0 14px}
h1{font-size:2.1rem;letter-spacing:-.5px}
h2{font-size:1.55rem;margin-top:42px}
h3{font-size:1.16rem;margin-top:26px}
p{margin:0 0 16px}
main ul,main ol{margin:0 0 18px;padding-left:22px}
main li{margin:0 0 9px}
strong{font-weight:600;color:#fff}
/* progress + header */
#bar{position:fixed;top:0;left:0;height:3px;width:0;z-index:60;
  background:linear-gradient(90deg,var(--amber),var(--teal))}
.site-head{position:sticky;top:0;z-index:50;background:rgba(10,14,25,.92);
  backdrop-filter:blur(9px);border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;gap:18px;flex-wrap:nowrap;height:66px}
.brand-logo{color:#fff;font-weight:700;font-size:1.12rem;letter-spacing:-.3px;white-space:nowrap}
.brand-logo:hover{text-decoration:none;color:var(--amber-soft)}
.nav-wrap{margin-left:auto;display:flex;align-items:center;gap:14px;flex-wrap:nowrap}
.nav-main{display:flex;gap:4px;flex-wrap:nowrap;list-style:none;margin:0;padding:0}
.nav-main a{color:var(--mute);font-size:.86rem;padding:8px 9px;border-radius:8px;white-space:nowrap}
.nav-main a:hover,.nav-main a[aria-current]{color:#fff;background:var(--panel-2);text-decoration:none}
.btn{display:inline-block;border:0;cursor:pointer;font-family:inherit;font-weight:600;
  border-radius:11px;padding:13px 22px;text-align:center;
  background:linear-gradient(135deg,var(--amber),#ffb84d);color:#20160a;
  box-shadow:0 8px 22px rgba(245,165,36,.22)}
.btn:hover{text-decoration:none;filter:brightness(1.07)}
.btn-sm{padding:9px 15px;font-size:.85rem;border-radius:9px;white-space:nowrap}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--moon);box-shadow:none}
.burger{display:none;margin-left:auto;background:transparent;border:1px solid var(--line);
  border-radius:10px;width:46px;height:44px;cursor:pointer;color:#fff;font-size:1.2rem}
/* breadcrumbs */
.crumbs{border-bottom:1px solid var(--line);background:rgba(17,24,39,.55)}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:11px 0;
  font-size:.82rem;color:var(--mute)}
.crumbs a{color:var(--mute)}
.crumbs li+li:before{content:"›";margin-right:8px;color:#5b678a}
/* hero */
.hero{padding-top:52px;padding-bottom:10px}
.kicker{display:inline-block;font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--amber);border:1px solid rgba(245,165,36,.35);border-radius:999px;padding:5px 13px;margin-bottom:18px}
.lede{font-size:1.08rem;color:#dbe2f2;max-width:70ch}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0 8px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:30px 0 6px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.stat b{display:block;font-size:1.5rem;color:var(--amber-soft);font-weight:700}
.stat span{font-size:.78rem;color:var(--mute)}
/* content blocks */
main{padding-bottom:20px}
figure{margin:22px 0 26px}
figure img{width:90%;height:auto;display:block;margin:0 auto;border-radius:10px;
  box-shadow:0 18px 44px rgba(0,0,0,.45);cursor:zoom-in}
figcaption{text-align:center;color:var(--mute);font-size:.83rem;margin-top:10px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;margin:26px 0}
.panel h3{margin-top:0}
.verdict{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.verdict ul{list-style:none;padding:0;margin:0}
.verdict li{padding-left:26px;position:relative}
.pros li:before{content:"▲";position:absolute;left:0;color:var(--teal);font-size:.72rem;top:6px}
.cons li:before{content:"▼";position:absolute;left:0;color:var(--danger);font-size:.72rem;top:6px}
.note{background:rgba(57,211,187,.08);border-left:3px solid var(--teal);border-radius:8px;
  padding:14px 16px;color:#d7f5ef;font-size:.95rem;margin:22px 0}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:22px 0;
  border:1px solid var(--line);border-radius:var(--radius)}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:.93rem}
th,td{padding:12px 15px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--panel-2);color:#fff;font-weight:600;font-size:.86rem}
td{color:#ccd4e8}
tr:last-child td{border-bottom:0}
/* tabs */
.tabs{margin:24px 0}
.tab-btns{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.tab-btn{background:var(--panel);border:1px solid var(--line);color:var(--mute);
  border-radius:999px;padding:9px 16px;cursor:pointer;font-family:inherit;font-size:.85rem}
.tab-btn[aria-selected="true"]{background:var(--amber);border-color:var(--amber);color:#20160a;font-weight:600}
.tab-panel[hidden]{display:none}
.tab-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.tab-panel p:last-child{margin-bottom:0}
/* calculator */
.calc{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin:26px 0}
.calc label{display:block;font-size:.86rem;color:var(--mute);margin-bottom:8px}
.calc input[type=range]{width:100%;accent-color:var(--amber)}
.calc-out{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
.calc-out div{background:var(--panel-2);border-radius:10px;padding:12px;text-align:center}
.calc-out b{display:block;color:var(--amber-soft);font-size:1.16rem}
.calc-out span{font-size:.74rem;color:var(--mute)}
/* faq */
details{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:0 18px;margin:0 0 10px}
summary{cursor:pointer;padding:15px 0;font-weight:600;color:#fff;list-style:none;min-height:44px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";float:right;color:var(--amber);font-weight:400}
details[open] summary:after{content:"–"}
details p{color:#c9d2e6;margin:0 0 14px}
/* cta */
.cta-block{background:linear-gradient(135deg,#1c2540,#232f52);border:1px solid var(--line);
  border-radius:18px;padding:28px;margin:34px 0 10px;text-align:center}
.cta-block p{color:#cdd6ea;max-width:60ch;margin:0 auto 18px}
/* footer */
.site-foot{border-top:1px solid var(--line);background:#080c15;margin-top:46px;padding:34px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:26px}
.foot-grid h4{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--mute);font-weight:600}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin-bottom:8px}
.foot-grid a{color:#c3cbe0;font-size:.9rem}
.age{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
  border-radius:50%;border:2px solid var(--danger);color:var(--danger);font-weight:700;font-size:.82rem}
.rg{display:flex;gap:14px;align-items:center;color:var(--mute);font-size:.86rem}
.legal{border-top:1px solid var(--line);margin-top:26px;padding-top:18px;color:#77819c;font-size:.8rem}
#top{position:fixed;right:18px;bottom:18px;z-index:40;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:var(--panel);color:#fff;cursor:pointer;font-size:1.1rem;
  opacity:0;pointer-events:none;transition:opacity .2s}
#top.show{opacity:1;pointer-events:auto}
#box[hidden]{display:none}
#box{position:fixed;inset:0;z-index:70;background:rgba(4,7,14,.9);display:flex;align-items:center;
  justify-content:center;padding:20px;cursor:zoom-out}
#box img{max-width:100%;max-height:88vh;border-radius:12px}
@media (max-width:960px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  body{font-size:16px}
  h1{font-size:1.62rem}
  h2{font-size:1.28rem}
  h3{font-size:1.08rem}
  .burger{display:block}
  .nav-wrap{display:none;position:absolute;top:66px;left:0;right:0;flex-direction:column;
    align-items:stretch;gap:10px;background:var(--deep);border-bottom:1px solid var(--line);padding:16px 22px}
  .nav-wrap.open{display:flex}
  .nav-main{flex-direction:column;gap:2px}
  .nav-main a{padding:12px 10px;font-size:.98rem;min-height:44px}
  .site-head{position:relative}
  .verdict{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .calc-out{grid-template-columns:1fr}
  .hero{padding-top:34px;padding-bottom:6px}
  figure img{width:100%}
}