:root{
  --bg:#0a0c13; --bg2:#0e1120; --panel:#141828; --panel2:#1b2033;
  --line:rgba(233,181,74,.18); --line2:rgba(255,255,255,.08);
  --gold:#e8b64a; --gold2:#f6d47a; --ink:#eef0f7; --muted:#9aa3bb;
  --shadow:0 18px 40px rgba(0,0,0,.45); --radius:16px;
}
*{box-sizing:border-box}
html,body{width:100%;overflow-x:hidden;margin:0}
body{background:radial-gradient(1100px 520px at 50% -140px,#1a2036 0,var(--bg) 60%) fixed,var(--bg);
  color:var(--ink);font:16px/1.68 "Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--gold2);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}

/* header */
.site-head{position:sticky;top:0;z-index:40;background:rgba(10,12,19,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;gap:14px;min-height:64px}
.brand-logo{font-weight:800;font-size:1.16rem;letter-spacing:.2px;color:var(--gold2);
  white-space:nowrap;text-decoration:none}
.brand-logo:hover{text-decoration:none}
.nav-main{display:flex;flex-wrap:nowrap;align-items:center;gap:2px;margin-left:auto}
.nav-main a{color:var(--ink);font-size:.93rem;padding:8px 10px;border-radius:9px;white-space:nowrap}
.nav-main a:hover{background:var(--panel2);text-decoration:none}
.nav-main a[aria-current=page]{color:var(--gold2)}
.btn{display:inline-block;border:0;cursor:pointer;font-weight:700;border-radius:11px;
  padding:11px 18px;text-align:center}
.btn.play{background:linear-gradient(180deg,var(--gold2),var(--gold));color:#2a1c00;
  box-shadow:0 8px 20px rgba(232,182,74,.28)}
.btn.play:hover{filter:brightness(1.06);text-decoration:none}
.head-cta{padding:9px 15px;font-size:.92rem;white-space:nowrap}
.burger{display:none;flex-direction:column;gap:5px;width:44px;height:40px;
  background:var(--panel2);border:1px solid var(--line2);border-radius:10px;padding:10px}
.burger span{height:2px;background:var(--gold2);border-radius:2px}

/* breadcrumb */
.crumbs{background:var(--bg2);border-bottom:1px solid var(--line2);font-size:.85rem}
.crumbs .wrap{padding-top:10px;padding-bottom:10px;color:var(--muted)}
.crumbs a{color:var(--muted)}.crumbs .sep{opacity:.5;margin:0 2px}

/* main */
main{display:block}
.body{padding-top:26px;padding-bottom:56px}
h1{font-size:2.05rem;line-height:1.16;margin:.2em 0 .35em;color:#fff;letter-spacing:.2px}
h2{font-size:1.42rem;margin:1.9em 0 .5em;color:var(--gold2);line-height:1.25}
h3{font-size:1.12rem;margin:1.4em 0 .4em;color:#fff}
p{margin:0 0 1.05em}
.lede{font-size:1.12rem;color:#dfe4f3;background:linear-gradient(180deg,var(--panel),var(--panel2));
  border:1px solid var(--line);border-left:4px solid var(--gold);border-radius:var(--radius);
  padding:16px 18px;box-shadow:var(--shadow)}
.note{font-size:.92rem;color:#d9c48f;background:rgba(232,182,74,.08);border:1px solid var(--line);
  border-radius:12px;padding:12px 14px}
figure.hero{margin:0 0 1.4em;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow)}
figure.hero img{width:100%;height:auto}
ul,ol{margin:0 0 1.15em;padding-left:1.25em}
li{margin:.3em 0}
main .body ul li::marker{color:var(--gold)}
.cols2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:0 0 1.2em}
.card{background:var(--panel);border:1px solid var(--line2);border-radius:14px;padding:16px 18px}
.card h3{margin-top:.1em}
.card.good{border-color:rgba(120,220,150,.28)}
.card.bad{border-color:rgba(240,120,120,.26)}

/* tables */
.table-scroll{overflow-x:auto;margin:0 0 1.3em;border:1px solid var(--line2);border-radius:14px}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:.95rem}
caption{caption-side:bottom;color:var(--muted);font-size:.82rem;padding:8px 10px;text-align:left}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line2)}
thead th{background:var(--panel2);color:var(--gold2);position:sticky;top:0}
tbody tr:nth-child(even){background:rgba(255,255,255,.02)}

/* faq */
.faq{margin:1.2em 0 0}
.faq details{background:var(--panel);border:1px solid var(--line2);border-radius:12px;
  margin:0 0 10px;padding:2px 16px}
.faq summary{cursor:pointer;font-weight:700;color:#fff;padding:13px 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--gold2);font-weight:800}
.faq details[open] summary::after{content:"\2013"}
.faq .faq-a{padding:0 0 14px;color:#d7dbea}

/* cta */
.cta{margin:1.8em 0 .4em;text-align:center;background:linear-gradient(180deg,var(--panel),var(--panel2));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px 18px;box-shadow:var(--shadow)}
.cta .btn.play{font-size:1.05rem;padding:14px 30px}

/* tabs */
.tabs{margin:0 0 1.3em}
.tab-btns{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.tab-btn{background:var(--panel2);color:var(--ink);border:1px solid var(--line2);border-radius:10px;
  padding:9px 16px;cursor:pointer;font-weight:600}
.tab-btn.is-on{background:linear-gradient(180deg,var(--gold2),var(--gold));color:#2a1c00;border-color:transparent}
.tab-panel{display:none}.tab-panel.is-on{display:block}

/* calculator */
.calc{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin:0 0 1.3em}
.calc label{display:block;font-weight:600;color:#fff;margin-bottom:6px}
.calc input{width:100%;max-width:220px;background:var(--bg2);color:#fff;border:1px solid var(--line2);
  border-radius:10px;padding:10px 12px;font-size:1rem}
.calc .calc-out{margin-top:12px;display:grid;gap:4px}
.calc .calc-out strong{color:var(--gold2)}

/* footer */
.site-foot{background:linear-gradient(180deg,var(--bg2),#080a11);border-top:1px solid var(--line);
  margin-top:48px;position:relative}
.site-foot .wrap{padding-top:36px;padding-bottom:26px}
.foot-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;align-items:start}
.foot-brand{display:flex;flex-direction:column;gap:14px;max-width:340px}
.foot-facts{display:flex;flex-wrap:wrap;gap:8px}
.foot-facts span{font-size:.76rem;color:var(--muted);background:var(--panel);
  border:1px solid var(--line2);border-radius:8px;padding:5px 10px}
.foot-mark{font-size:1.2rem;text-decoration:none}
.foot-mark:hover{text-decoration:none}
.foot-badge{display:inline-block;align-self:flex-start;font-size:.74rem;color:#d9c48f;
  background:rgba(232,182,74,.09);border:1px solid var(--line);border-radius:999px;padding:5px 12px}
.foot-col{display:flex;flex-direction:column;gap:9px}
.foot-col h3{margin:0 0 3px;font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;
  color:var(--gold2);font-weight:700}
.foot-col a{color:var(--muted);font-size:.92rem;width:fit-content}
.foot-col a:hover{color:var(--ink);text-decoration:none}
.foot-legal{display:flex;flex-wrap:wrap;gap:6px 18px;justify-content:space-between;align-items:center;
  margin:28px 0 0;color:var(--muted);font-size:.82rem;border-top:1px solid var(--line2);padding-top:18px}
.foot-legal a{color:var(--gold2)}
.to-top{position:fixed;right:16px;bottom:16px;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:var(--panel2);color:var(--gold2);font-size:1.2rem;
  cursor:pointer;opacity:0;pointer-events:none;transition:opacity .25s;z-index:30}
.to-top.show{opacity:1;pointer-events:auto}

@media (max-width:820px){
  .nav-main a{padding:8px 8px;font-size:.9rem}
}
@media (max-width:760px){
  .burger{display:flex}
  .nav-main{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;
    align-items:stretch;gap:0;background:var(--bg2);border-bottom:1px solid var(--line);
    padding:8px 14px 14px;margin-left:0}
  .nav-main.open{display:flex}
  .nav-main a{padding:12px 6px;border-bottom:1px solid var(--line2)}
  .head-row{flex-wrap:nowrap;position:relative;gap:10px}
  .head-row .brand-logo{order:1;font-size:1.02rem;min-width:0;flex:0 1 auto;overflow:hidden;
    text-overflow:ellipsis;white-space:nowrap}
  .head-cta{order:2;margin-left:auto;flex:0 0 auto}
  .burger{order:3;flex:0 0 auto}
  h1{font-size:1.68rem}
  h2{font-size:1.26rem}
  .cols2{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:1fr 1fr;gap:24px}
  .foot-brand{grid-column:1 / -1}
  .foot-legal{justify-content:flex-start}
}