:root{
  --bg0:#021316;
  --bg1:#043a40;

  --text:#ecffff;
  --muted:rgba(236,255,255,.72);

  --cardA:rgba(2,20,22,.58);
  --cardB:rgba(2,36,40,.42);
  --stroke:rgba(255,255,255,.10);

  --c1:#00ffd5;   /* aqua */
  --c2:#2f8cff;   /* ocean blue */
  --c3:#3dff9e;   /* neon mint */

  --shadow: 0 22px 70px rgba(0,0,0,.55);
  --radius: 22px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color:var(--text);
  background:
    radial-gradient(900px 520px at 15% 20%, rgba(0,255,213,.22), transparent 60%),
    radial-gradient(900px 600px at 86% 18%, rgba(47,140,255,.18), transparent 58%),
    radial-gradient(900px 700px at 72% 86%, rgba(61,255,158,.16), transparent 62%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow-x:hidden;
}
a{color:inherit}
.container{width:min(1120px, calc(100% - 40px)); margin:0 auto}

.topbar{
  position:sticky; top:0; z-index:20;
  padding:14px 0;
  background: linear-gradient(180deg, rgba(2,19,22,.92), rgba(2,19,22,.62));
  backdrop-filter: blur(14px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar__inner{
  width:min(1120px, calc(100% - 40px));
  margin:0 auto;
  display:flex; align-items:center; justify-content:space-between; gap:18px;
}
.brand{display:flex; align-items:center; gap:12px; text-decoration:none}
.brand__mark{
  width:40px; height:40px; border-radius:14px;
  background:
    radial-gradient(circle at 30% 30%, rgba(0,255,213,.95), transparent 58%),
    radial-gradient(circle at 70% 70%, rgba(47,140,255,.85), transparent 60%),
    rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
}
.brand__text{display:flex; flex-direction:column; line-height:1.1}
.brand__name{font-weight:950; letter-spacing:.2px}
.brand__domain{font-size:12px; opacity:.70}

.topbar__right{display:flex; align-items:center; gap:12px; max-width:760px}
.badge18{
  display:inline-flex; align-items:center; justify-content:center;
  width:40px; height:40px; border-radius:999px;
  border:1px solid rgba(0,255,213,.55);
  background: rgba(0,255,213,.10);
  font-weight:950;
}
.topbar__disclaimer{
  margin:0; font-size:13px; color:var(--muted);
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:680px;
}

.hero{padding:42px 0 20px}
.hero__grid{
  display:grid; grid-template-columns: 1.2fr .8fr;
  gap:26px; padding:26px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.08);
  box-shadow: var(--shadow);
  position:relative; overflow:hidden;
}
.hero__grid:before{
  content:""; position:absolute; inset:-2px;
  background:
    radial-gradient(520px 240px at 22% 20%, rgba(0,255,213,.18), transparent 62%),
    radial-gradient(520px 220px at 78% 22%, rgba(47,140,255,.18), transparent 62%),
    radial-gradient(620px 340px at 70% 85%, rgba(61,255,158,.14), transparent 60%);
  pointer-events:none;
}
.hero__copy{position:relative; z-index:1}
.kicker{letter-spacing:.18em; font-size:12px; opacity:.74; margin-bottom:10px}
.hero__title{font-size:56px; line-height:1.02; margin:0 0 10px; font-weight:1000}
.hero__lead{margin:0 0 18px; color:var(--muted); max-width:56ch}
.hero__actions{display:flex; gap:12px; flex-wrap:wrap}
.hero__art{position:relative; z-index:1; display:flex; align-items:center; justify-content:center}
.hero__art img{
  width:min(360px, 100%); aspect-ratio:1/1;
  border-radius: 26px;
  border:1px solid rgba(255,255,255,.10);
  box-shadow: 0 18px 60px rgba(0,0,0,.52);
}

.section{padding:30px 0}
.section--dense{padding:22px 0 34px}
.section__head h2{margin:0 0 8px; font-size:24px}
.section__head p{margin:0; color:var(--muted)}

.cards3{display:grid; grid-template-columns:repeat(3, 1fr); gap:14px}
.card{
  padding:18px; border-radius: 18px;
  background: linear-gradient(180deg, var(--cardA), var(--cardB));
  border:1px solid rgba(255,255,255,.08);
  box-shadow: 0 18px 50px rgba(0,0,0,.30);
}
.card__title{font-weight:950; margin-bottom:6px}
.card__text{color:var(--muted); margin:0}

.panel{
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.08);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.panel__head{padding:22px 22px 12px}
.panel__head p{margin:0; color:var(--muted)}

.demo{display:grid; grid-template-columns: 1.2fr .8fr; gap:16px; padding: 0 22px 22px}
.demo__meta{display:flex; gap:10px; flex-wrap:wrap; margin-bottom:14px}
.pill{
  padding:10px 12px; border-radius: 999px;
  background: rgba(2,19,22,.55);
  border:1px solid rgba(255,255,255,.08);
  display:flex; gap:8px; align-items:baseline;
}
.pill span{font-size:12px; opacity:.70}

.grid{
  display:grid; grid-template-columns:repeat(3, 1fr);
  gap:12px; padding:14px;
  border-radius: 22px;
  background: rgba(2,19,22,.42);
  border:1px solid rgba(255,255,255,.08);
  position:relative; overflow:hidden;
}
.cell{
  height:110px; border-radius: 18px;
  display:flex; align-items:center; justify-content:center;
  font-size:46px;
  background: rgba(2,36,40,.46);
  border:1px solid rgba(255,255,255,.08);
}
.cell.is-win{
  border-color: rgba(0,255,213,.45);
  box-shadow: 0 0 0 1px rgba(0,255,213,.16), 0 20px 60px rgba(0,255,213,.12);
}

.demo__actions{display:flex; align-items:center; gap:12px; margin-top:14px; flex-wrap:wrap}
.demo__status{color:var(--muted); font-size:13px}

.stats{
  padding:16px; border-radius: 22px;
  background: rgba(2,19,22,.42);
  border:1px solid rgba(255,255,255,.08);
}
.stats__title{font-weight:1000; margin-bottom:12px}
.stats__grid{display:grid; grid-template-columns: repeat(2, 1fr); gap:10px}
.stat{
  padding:12px; border-radius: 16px;
  background: rgba(2,36,40,.46);
  border:1px solid rgba(255,255,255,.08);
}
.stat__label{font-size:12px; letter-spacing:.08em; opacity:.72}
.stat__value{font-size:26px; font-weight:1000; margin-top:6px}

.rules{
  margin-top:14px; padding:14px; border-radius: 18px;
  background: rgba(2,36,40,.42);
  border:1px solid rgba(255,255,255,.08);
}
.rules p, .rules li{color:var(--muted); line-height:1.6}

.chips{display:flex; flex-wrap:wrap; gap:10px; padding: 0 22px 22px}
.chip{
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 14px; border-radius: 999px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(2,19,22,.30);
  text-decoration:none;
  box-shadow: 0 12px 36px rgba(0,0,0,.22);
}
.btn{
  border:1px solid rgba(255,255,255,.12);
  background: rgba(2,19,22,.30);
  color:rgba(255,255,255,.92);
  padding:12px 16px; border-radius: 14px;
  cursor:pointer; font-weight:950; text-decoration:none;
  display:inline-flex; align-items:center; gap:10px;
}
.btn--primary{
  background: linear-gradient(135deg, rgba(0,255,213,.95), rgba(47,140,255,.95));
  color:#021316;
}
.btn--primary:disabled{opacity:.55; cursor:not-allowed}
.btn--ghost{background: rgba(2,19,22,.22)}
.btn--sm{padding:10px 12px; border-radius: 12px; font-size:13px}

.footer{padding:26px 0 44px}
.footer__grid{
  display:grid; grid-template-columns: 1.1fr .9fr; gap:16px;
  padding:18px; border-radius: var(--radius);
  background: rgba(2,19,22,.30);
  border:1px solid rgba(255,255,255,.08);
}
.footer__title{font-weight:1000; margin-bottom:8px}
.footer__contact{color:var(--muted)}
.footer__note{margin-top:12px; color:var(--muted)}
.footer__brand{font-weight:1000}
.footer__small{font-size:13px; margin-top:4px}

.prose{padding:22px}
.prose p, .prose li{color:var(--muted); line-height:1.65}
.contactcard{
  padding:14px; border-radius: 18px;
  background: rgba(2,36,40,.46);
  border:1px solid rgba(255,255,255,.08);
  color:var(--muted);
}

.modal{position:fixed; inset:0; display:none; z-index:50}
.modal.is-open{display:block}
.modal__backdrop{position:absolute; inset:0; background:rgba(0,0,0,.62); backdrop-filter: blur(6px)}
.modal__card{
  position:relative; width:min(520px, calc(100% - 40px));
  margin: 9vh auto 0;
  border-radius: 22px;
  background: rgba(2,19,22,.92);
  border:1px solid rgba(255,255,255,.10);
  box-shadow: 0 30px 110px rgba(0,0,0,.65);
  padding:18px 18px 16px;
}
.checkrow{
  display:flex; gap:10px; align-items:flex-start;
  padding:12px 12px; border-radius: 16px;
  background: rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
}
.checkrow input{margin-top:3px; accent-color: var(--c1)}
.cookie{position:fixed; left:14px; right:14px; bottom:14px; display:none; z-index:40}
.cookie.is-open{display:block}
.cookie__inner{
  width:min(980px, 100%); margin:0 auto;
  padding:14px 14px; border-radius: 18px;
  background: rgba(2,19,22,.92);
  border:1px solid rgba(255,255,255,.10);
  box-shadow: 0 24px 90px rgba(0,0,0,.6);
  display:flex; gap:12px; align-items:center; justify-content:space-between;
}
.cookie__text{color:var(--muted); font-size:13px; line-height:1.4}

/* game animations */
@keyframes cellSpinPulse{
  0%{ transform: translateY(0) scale(1); filter: blur(0px); }
  35%{ transform: translateY(-3px) scale(1.03); filter: blur(.6px); }
  70%{ transform: translateY(2px) scale(.99); filter: blur(.3px); }
  100%{ transform: translateY(0) scale(1); filter: blur(0px); }
}
.cell.is-spinning{animation: cellSpinPulse 420ms ease-in-out infinite;}
@keyframes hitGlow{
  0%{ box-shadow: 0 0 0 0 rgba(0,255,213,0); }
  45%{ box-shadow: 0 0 0 1px rgba(0,255,213,.20), 0 26px 90px rgba(0,255,213,.14); }
  100%{ box-shadow: 0 0 0 0 rgba(0,255,213,0); }
}
.grid.is-hit{animation: hitGlow 520ms ease-out 1;}
.particle{
  position: fixed;
  width: 10px; height: 10px; border-radius: 4px;
  background: linear-gradient(135deg, rgba(0,255,213,.95), rgba(47,140,255,.95));
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
  transform: translate(-50%,-50%);
  animation: particleFly var(--dur, 800ms) ease-out forwards;
  pointer-events:none; z-index:60;
}
.particle:nth-child(3n){background: linear-gradient(135deg, rgba(61,255,158,.95), rgba(0,255,213,.92));}
.particle:nth-child(4n){background: linear-gradient(135deg, rgba(47,140,255,.95), rgba(61,255,158,.92));}
@keyframes particleFly{
  to{ transform: translate(calc(-50% + var(--tx)), calc(-50% + var(--ty))) rotate(var(--rot)); opacity:0; }
}

@media (max-width: 920px){
  .hero__grid{grid-template-columns:1fr}
  .topbar__disclaimer{max-width:420px}
  .demo{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .cards3{grid-template-columns:1fr}
  .hero__title{font-size:42px}
  .cell{height:98px}
  .modal__card{margin-top: 10vh}
}