/* Cat Casino · cat-casino-qsb.top — concept "Огненный опал" (fire opal)
   Palette: ember-black #160d10 · opal-orange #ff7a3d · bright #ff9a5c · gold #e0a93f · cream #f5ece4 · muted #a08a82
   Fonts: DM Serif Display (display) + Plus Jakarta Sans (body) · namespace: .op- */

:root{
  --bg:#160d10;
  --bg2:#211318;
  --bg3:#2c1a20;
  --line:#3d2730;
  --op:#ff7a3d;
  --op-b:#ff9a5c;
  --op-d:#e3621f;
  --gold:#e0a93f;
  --cream:#f5ece4;
  --muted:#a08a82;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--cream);
  font-family:'Plus Jakarta Sans',system-ui,Arial,sans-serif;
  font-size:17px;line-height:1.66;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,.op-mark__t,.op-kpi__v,.op-cell__v,.op-rung__pct{
  font-family:'DM Serif Display','Plus Jakarta Sans',serif;
  font-weight:400;line-height:1.2;letter-spacing:.002em;
}

a{color:var(--op-b);text-decoration:none}
a:hover{color:var(--cream)}

.op-skip{position:absolute;left:-999px;top:0;background:var(--op);color:#1c0c04;padding:10px 16px;border-radius:8px;z-index:50}
.op-skip:focus{left:12px;top:12px}

/* header */
.op-top{
  position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:20px;
  padding:13px clamp(16px,4vw,40px);
  background:rgba(22,13,16,.93);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.op-mark{display:flex;align-items:center;gap:11px;color:var(--cream)}
.op-mark__svg{width:40px;height:40px;flex:none}
.op-mark__t{font-size:21px;display:flex;flex-direction:column;line-height:1.04}
.op-mark__sub{font-family:'Plus Jakarta Sans',sans-serif;font-size:11px;font-weight:700;color:var(--gold);letter-spacing:.2em;text-transform:uppercase}
.op-nav{display:flex;gap:19px;margin-left:auto;flex-wrap:wrap}
.op-nav a{color:var(--muted);font-size:14.5px;font-weight:400}
.op-nav a:hover{color:var(--cream)}

.op-cta{display:inline-flex;align-items:center;justify-content:center;font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;border-radius:10px;border:1px solid transparent;transition:transform .12s ease,background .15s ease,border-color .15s ease;cursor:pointer}
.op-cta:hover{transform:translateY(-1px)}
.op-cta--mini{padding:9px 18px;font-size:14px;background:var(--op);color:#1c0c04}
.op-cta--mini:hover{background:var(--op-d);color:#fff}
.op-cta--lg{padding:15px 28px;font-size:15.5px}
.op-cta--go{background:linear-gradient(120deg,var(--op),var(--gold));color:#1c0c04;box-shadow:0 12px 30px -14px var(--op-b)}
.op-cta--go:hover{filter:brightness(1.06)}
.op-cta--line{background:transparent;color:var(--cream);border-color:var(--line)}
.op-cta--line:hover{border-color:var(--op-b);color:var(--cream)}

/* layout */
.op-hero,.op-sec{max-width:1080px;margin:0 auto;padding:clamp(38px,6vw,70px) clamp(16px,4vw,40px)}
.op-sec{border-top:1px solid var(--line)}
.op-ovr{font-family:'Plus Jakarta Sans',sans-serif;font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--op-b);margin-bottom:12px}

/* hero */
.op-hero{
  background:
    radial-gradient(1000px 460px at 80% -10%,rgba(255,122,61,.18),transparent 60%),
    radial-gradient(720px 400px at 4% 6%,rgba(224,169,63,.12),transparent 62%);
}
.op-hero__chip{display:inline-block;font-family:'Plus Jakarta Sans',sans-serif;font-size:12.5px;font-weight:700;letter-spacing:.04em;color:var(--op-b);background:var(--bg2);border:1px solid var(--line);border-radius:999px;padding:7px 15px;margin-bottom:20px}
.op-hero h1{font-size:clamp(28px,4.4vw,46px);max-width:21ch}
.op-hero__sub{margin-top:18px;max-width:64ch;color:#ddccc2;font-size:17.5px}
.op-hero__btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.op-kpi{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin-top:32px}
.op-kpi li{padding:16px 17px;background:linear-gradient(180deg,var(--bg2),var(--bg));border:1px solid var(--line);border-radius:12px;display:flex;flex-direction:column;gap:3px}
.op-kpi__v{font-size:24px;color:var(--op-b)}
.op-kpi__l{font-size:12.5px;color:var(--muted)}

/* section base */
.op-sec h2{font-size:clamp(24px,3.2vw,34px);max-width:26ch}
.op-sec p{margin-top:14px;max-width:74ch;color:#ddccc2}
.op-lede{color:#c2afa4}
.op-note{font-size:14.5px;color:var(--muted);border-left:2px solid var(--op);padding-left:16px;margin-top:22px}

/* about */
.op-about{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;margin-top:26px}
.op-card{background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:20px 22px}
.op-card--wide{grid-column:1 / -1}
.op-card h3{font-size:19px;color:var(--cream)}
.op-card p{margin-top:10px;font-size:14.5px;color:#cdbab0}

/* cells */
.op-cells{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}
.op-cells--pay{grid-template-columns:repeat(3,1fr)}
.op-cell{background:linear-gradient(180deg,var(--bg3),var(--bg2));border:1px solid var(--line);border-radius:12px;padding:18px}
.op-cell__t{font-size:13px;color:var(--muted);font-weight:400}
.op-cell__v{font-size:21px;color:var(--op-b);margin-top:7px}
.op-cell__s{font-size:13px;color:var(--gold);margin-top:5px;font-weight:700}

/* steps */
.op-steps{list-style:none;margin-top:24px;display:flex;flex-direction:column;gap:11px}
.op-steps li{display:flex;gap:16px;align-items:flex-start;background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.op-steps__n{flex:none;width:34px;height:34px;border-radius:50%;background:linear-gradient(120deg,var(--op),var(--gold));color:#1c0c04;font-family:'DM Serif Display',serif;font-size:18px;display:flex;align-items:center;justify-content:center}
.op-steps__t{font-size:15.5px;color:var(--cream);font-weight:700}
.op-steps__d{font-size:14px;color:#cdbab0;margin-top:4px}

/* catalog */
.op-lib{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px}
.op-slot{background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:18px;transition:border-color .15s ease,transform .12s ease}
.op-slot:hover{border-color:var(--op-b);transform:translateY(-2px)}
.op-slot__t{font-family:'DM Serif Display',serif;font-size:18px;color:var(--cream)}
.op-slot__p{font-size:12.5px;color:var(--op-b);font-weight:700;margin-top:6px}
.op-slot__d{font-size:13.5px;color:#cdbab0;margin-top:9px}

/* bullets */
.op-bul{list-style:none;margin-top:22px;display:flex;flex-direction:column;gap:12px}
.op-bul li{position:relative;padding-left:24px;font-size:15px;color:#ddccc2}
.op-bul li::before{content:"";position:absolute;left:2px;top:6px;width:11px;height:11px;background:radial-gradient(circle at 35% 30%,var(--op-b),var(--op));border-radius:50%}
.op-bul__t{color:var(--cream);font-weight:700}

/* loyalty */
.op-rung{margin-top:24px;display:flex;flex-direction:column;gap:11px}
.op-rung__row{display:grid;grid-template-columns:170px 1fr 52px;align-items:center;gap:14px}
.op-rung__name{font-weight:700;font-size:15px;color:var(--cream)}
.op-rung__bar{height:8px;background:var(--bg3);border-radius:999px;overflow:hidden}
.op-rung__bar i{display:block;height:100%;background:linear-gradient(90deg,var(--op-d),var(--gold));border-radius:999px}
.op-rung__pct{color:var(--op-b);text-align:right;font-size:17px}

/* reviews */
.op-revs{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:8px}
.op-rev{background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:11px}
.op-rev__st{color:var(--gold);font-size:16px;letter-spacing:.12em}
.op-rev__tx{font-size:14.5px;color:#ddccc2}
.op-rev__wh{font-family:'DM Serif Display',serif;font-size:15.5px;color:var(--muted);margin-top:auto}

/* faq */
.op-q{background:var(--bg2);border:1px solid var(--line);border-radius:12px;margin-top:12px;overflow:hidden}
.op-q summary{cursor:pointer;list-style:none;padding:16px 20px;font-family:'DM Serif Display',serif;font-size:18px;color:var(--cream);display:flex;justify-content:space-between;gap:14px;align-items:center}
.op-q summary::-webkit-details-marker{display:none}
.op-q summary::after{content:"+";color:var(--op-b);font-size:22px;flex:none}
.op-q[open] summary::after{content:"–"}
.op-q p{padding:0 20px 18px;margin:0;font-size:14.5px;color:#cdbab0;max-width:none}

/* author */
.op-sign__warn{font-size:14px;color:var(--muted);margin-top:14px}

/* footer */
.op-foot{border-top:1px solid var(--line);background:var(--bg2);margin-top:30px}
.op-foot__cols{max-width:1080px;margin:0 auto;padding:40px clamp(16px,4vw,40px) 14px;display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.op-foot__h{font-family:'DM Serif Display',serif;font-size:18px;color:var(--cream);margin-bottom:10px}
.op-foot__col p{font-size:13.5px;color:var(--muted);margin-top:5px}
.op-foot__col a{color:var(--op-b)}
.op-foot__copy{max-width:1080px;margin:0 auto;padding:18px clamp(16px,4vw,40px) 40px;font-size:12.5px;color:#7a665d;border-top:1px solid var(--line)}

@media(max-width:880px){
  .op-kpi,.op-about,.op-lib,.op-revs{grid-template-columns:repeat(2,1fr)}
  .op-cells,.op-cells--pay{grid-template-columns:repeat(2,1fr)}
  .op-foot__cols{grid-template-columns:1fr}
  .op-nav{display:none}
}
@media(max-width:540px){
  body{font-size:16px}
  .op-kpi,.op-about,.op-lib,.op-revs,.op-cells,.op-cells--pay{grid-template-columns:1fr}
  .op-rung__row{grid-template-columns:140px 1fr 44px}
}