:root{--ink:#12203a;--muted:#4a5a76;--bg:#f5f7fb;--card:#ffffff;--line:#dbe3ef;
--brand:#0e5bd8;--brand-dk:#0a3f97;--gold:#f4a621;--good:#1f8a54;--bad:#c0392b;--dark:#0d1a30;}
*{box-sizing:border-box}
html,body{width:100%;overflow-x:hidden;margin:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
color:var(--ink);background:var(--bg);line-height:1.65;font-size:17px}
a{color:var(--brand)}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
h1,h2,h3{line-height:1.25;color:var(--dark)}
h1{font-size:2rem;margin:.2em 0 .5em}
h2{font-size:1.42rem;margin:1.7em 0 .5em}
h3{font-size:1.14rem;margin:1.3em 0 .4em}
p{margin:0 0 1em}
main ul,main ol{margin:0 0 1.2em;padding-left:1.3em}
main li{margin:.35em 0}
/* header */
.site-head{background:var(--dark);color:#fff;position:sticky;top:0;z-index:40}
.head-row{display:flex;flex-wrap:nowrap;align-items:center;gap:14px;padding:12px 0}
.brand-logo{color:#fff;font-weight:800;font-size:1.16rem;text-decoration:none;white-space:nowrap;letter-spacing:.2px}
.brand-logo span{color:var(--gold)}
.nav-wrap{margin-left:auto;display:flex;flex-wrap:nowrap;align-items:center;gap:12px}
.nav-main{display:flex;flex-wrap:nowrap;gap:2px;list-style:none;margin:0;padding:0}
.nav-main a{color:#e7edf7;text-decoration:none;padding:8px 9px;border-radius:7px;font-size:.93rem;white-space:nowrap}
.nav-main a:hover,.nav-main a[aria-current="page"]{background:rgba(255,255,255,.12);color:#fff}
.cta-top{background:var(--gold);color:#3a2600;font-weight:700;text-decoration:none;padding:9px 15px;border-radius:8px;white-space:nowrap}
.cta-top:hover{filter:brightness(1.05)}
.burger{display:none;margin-left:auto;background:none;border:1.5px solid rgba(255,255,255,.5);
color:#fff;border-radius:8px;padding:7px 11px;font-size:1.15rem;cursor:pointer}
/* hero + layout */
main{display:block;padding:6px 0 40px}
.crumbs{font-size:.85rem;color:var(--muted);padding:12px 0 0}
.crumbs a{color:var(--brand);text-decoration:none}
.lede{font-size:1.12rem;background:#eaf1ff;border-left:4px solid var(--brand);
padding:14px 18px;border-radius:0 10px 10px 0;color:#1c2c4a}
figure.hero{margin:14px 0 6px}
figure.hero img{border-radius:14px;width:100%;box-shadow:0 10px 30px rgba(13,26,48,.16)}
figcaption{font-size:.84rem;color:var(--muted);margin-top:6px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:14px 0}
.note{background:#fff7e6;border:1px solid #f2d79a;border-radius:10px;padding:12px 15px;color:#5a4410}
.pill{display:inline-block;background:#eaf1ff;color:var(--brand-dk);border-radius:999px;
padding:3px 11px;font-size:.8rem;font-weight:600;margin:2px 4px 2px 0}
.specs{width:100%;border-collapse:collapse}
.specs th,.specs td{border:1px solid var(--line);padding:9px 12px;text-align:left;font-size:.95rem}
.specs th{background:#eef3fb;width:42%}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:14px 0}
/* tabs / calc widgets */
.tabs{display:flex;flex-wrap:wrap;gap:6px;margin:14px 0 0}
.tabs button{background:#e7edf7;border:1px solid var(--line);border-radius:8px 8px 0 0;
padding:8px 13px;cursor:pointer;font-size:.92rem}
.tabs button[aria-selected="true"]{background:#fff;border-bottom-color:#fff;font-weight:700;color:var(--brand-dk)}
.tabpanel{background:#fff;border:1px solid var(--line);border-radius:0 10px 10px 10px;padding:14px 16px}
.calc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:16px 0}
.calc input[type=range]{width:100%}
.calc output{font-weight:800;color:var(--brand-dk);font-size:1.2rem}
/* faq */
details.faq{background:#fff;border:1px solid var(--line);border-radius:10px;margin:10px 0;padding:2px 16px}
details.faq summary{cursor:pointer;font-weight:700;padding:12px 0;color:var(--dark)}
details.faq[open] summary{color:var(--brand-dk)}
details.faq p{margin:.2em 0 12px}
/* spin cta block */
.spin{background:linear-gradient(135deg,#0e5bd8,#0a3f97);color:#fff;border-radius:14px;
padding:22px 20px;margin:26px 0 10px;text-align:center}
.spin h2{color:#fff;margin-top:0}
.spin .btn{display:inline-block;background:var(--gold);color:#3a2600;font-weight:800;
text-decoration:none;padding:13px 26px;border-radius:10px;margin-top:6px;font-size:1.05rem}
/* lightbox */
.lightbox[hidden]{display:none}
.lightbox{position:fixed;inset:0;background:rgba(5,10,20,.86);z-index:80;
display:flex;align-items:center;justify-content:center;padding:20px}
.lightbox img{max-width:94vw;max-height:90vh;border-radius:10px}
.lightbox button{position:absolute;top:14px;right:18px;background:#fff;border:none;
border-radius:8px;padding:7px 13px;font-size:1rem;cursor:pointer}
/* back to top */
#toTop{position:fixed;right:16px;bottom:16px;background:var(--brand);color:#fff;border:none;
border-radius:50%;width:46px;height:46px;font-size:1.2rem;cursor:pointer;display:none;z-index:50;
box-shadow:0 6px 18px rgba(13,26,48,.3)}
#toTop.show{display:block}
/* footer */
.site-foot{background:var(--dark);color:#c6d2e6;margin-top:30px;padding:28px 0 20px}
.foot-cols{display:flex;flex-wrap:wrap;gap:26px}
.foot-cols .col{flex:1;min-width:180px}
.foot-cols h4{color:#fff;font-size:1rem;margin:0 0 10px}
.foot-cols a{color:#c6d2e6;text-decoration:none;display:block;padding:3px 0;font-size:.92rem}
.foot-cols a:hover{color:#fff}
.foot-logo{font-weight:800;font-size:1.1rem;color:#fff}
.foot-logo span{color:var(--gold)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:20px;padding-top:16px;
font-size:.82rem;color:#93a2bd}
.age{display:inline-block;border:2px solid var(--gold);color:var(--gold);border-radius:50%;
width:34px;height:34px;line-height:30px;text-align:center;font-weight:800;margin-right:8px;vertical-align:middle}
@media(max-width:860px){
  .burger{display:block}
  .nav-wrap{display:none;position:absolute;left:0;right:0;top:100%;background:var(--dark);
    flex-direction:column;align-items:stretch;padding:10px 22px 16px;gap:8px}
  .nav-wrap.open{display:flex}
  .site-head{position:relative}
  .head-row{position:relative;flex-wrap:wrap}
  .nav-main{flex-direction:column;gap:2px;width:100%}
  .nav-main a{padding:11px 10px;font-size:1rem}
  .cta-top{text-align:center}
  h1{font-size:1.6rem}
}