:root{
  --bg:#030712;
  --panel:rgba(9,18,38,.68);
  --panel-strong:rgba(13,26,54,.86);
  --stroke:rgba(148,226,255,.22);
  --stroke-soft:rgba(255,255,255,.12);
  --text:#f4fbff;
  --muted:#a9c5db;
  --cyan:#22d3ee;
  --blue:#2563eb;
  --violet:#8b5cf6;
  --green:#7cffc4;
  --danger:#fb7185;
  --radius:28px;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif;color:var(--text);overflow-x:hidden;scroll-behavior:smooth}
body{background:var(--bg);user-select:none;-webkit-tap-highlight-color:transparent}
.bg{position:fixed;inset:0;z-index:-2;background:
  radial-gradient(circle at 18% 12%,rgba(34,211,238,.34),transparent 27%),
  radial-gradient(circle at 82% 18%,rgba(139,92,246,.30),transparent 28%),
  radial-gradient(circle at 50% 100%,rgba(37,99,235,.24),transparent 36%),
  linear-gradient(145deg,#020617,#071126 52%,#030712)}
.bg:before{content:"";position:absolute;inset:0;z-index:-1;background-image:
  linear-gradient(rgba(125,220,255,.055) 1px,transparent 1px),
  linear-gradient(90deg,rgba(125,220,255,.055) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(circle at center,#000 20%,transparent 78%)}
.bg:after{content:"";position:absolute;inset:-20%;background:conic-gradient(from 210deg,transparent,rgba(34,211,238,.14),transparent,rgba(139,92,246,.12),transparent);animation:bgSpin 22s linear infinite;opacity:.75}
@keyframes bgSpin{to{transform:rotate(1turn)}}
.app{width:min(1220px,100%);margin:0 auto;padding:clamp(12px,3vw,34px)}
.glass{position:relative;background:linear-gradient(145deg,rgba(255,255,255,.14),rgba(255,255,255,.045) 44%,rgba(34,211,238,.045));border:1px solid var(--stroke);box-shadow:0 26px 90px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.2);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:var(--radius);overflow:hidden}
.glass:before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(135deg,rgba(103,232,249,.6),transparent 28%,rgba(139,92,246,.48));mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);mask-composite:exclude;pointer-events:none;opacity:.75}
.hero{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:26px;margin-bottom:20px}
.brand-line{display:flex;align-items:center;gap:12px;margin-bottom:8px}.brand-line img{width:46px;height:46px;filter:drop-shadow(0 0 18px rgba(34,211,238,.55))}.eyebrow{margin:0;letter-spacing:.3em;color:#8ff5ff;font-weight:1000;font-size:12px;text-transform:uppercase}.hero h1{margin:.05em 0;font-size:clamp(34px,6.5vw,82px);line-height:.88;text-transform:uppercase;letter-spacing:-.055em;text-shadow:0 0 18px rgba(34,211,238,.35),0 0 50px rgba(37,99,235,.22)}
.hero h1 span{display:inline-block}.hero h1 span:nth-child(2){color:#dbeafe}.hero h1 span:nth-child(3){background:linear-gradient(90deg,#67e8f9,#a78bfa,#7cffc4);-webkit-background-clip:text;background-clip:text;color:transparent}
.subtitle{color:var(--muted);max-width:770px;font-size:clamp(14px,1.7vw,18px);line-height:1.6}.score-pill{display:grid;gap:2px;text-align:center;padding:13px 18px;border-radius:999px;background:rgba(34,211,238,.10);border:1px solid rgba(103,232,249,.36);white-space:nowrap;box-shadow:inset 0 0 20px rgba(34,211,238,.08),0 0 26px rgba(34,211,238,.12)}.score-pill small{color:#9fb6ca;font-size:11px;text-transform:uppercase;letter-spacing:.16em}.score-pill span{font-weight:1000;color:#fff}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.card{padding:22px}.card h2,.history h2{margin:0 0 12px;font-size:clamp(20px,2vw,28px);letter-spacing:-.02em}.card p{color:var(--muted);line-height:1.6}label{display:block;margin:13px 0 6px;color:#c9f4ff;font-size:14px;font-weight:800}input{width:100%;padding:15px 16px;border-radius:17px;border:1px solid rgba(255,255,255,.16);background:rgba(2,6,23,.66);color:white;outline:none;box-shadow:inset 0 0 20px rgba(0,0,0,.18)}input::placeholder{color:#73879d}input:focus{border-color:#22d3ee;box-shadow:0 0 0 4px rgba(34,211,238,.14),inset 0 0 20px rgba(0,0,0,.18)}
button{border:0;border-radius:17px;padding:13px 18px;margin-top:14px;background:linear-gradient(145deg,rgba(255,255,255,.15),rgba(255,255,255,.06));color:white;font-weight:1000;cursor:pointer;border:1px solid rgba(255,255,255,.16);touch-action:manipulation;transition:transform .18s ease,box-shadow .18s ease,filter .18s ease}button:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(34,211,238,.17);filter:brightness(1.06)}button:active{transform:translateY(0) scale(.99)}.primary{background:linear-gradient(135deg,#06b6d4,#2563eb 55%,#7c3aed);border-color:rgba(103,232,249,.56);box-shadow:0 10px 30px rgba(37,99,235,.2)}.ghost{background:rgba(255,255,255,.07);padding:10px 13px}.row{display:flex;align-items:center;gap:12px}.between{justify-content:space-between}.games-list{display:grid;gap:10px;max-height:270px;overflow:auto;padding-right:2px}.game-item{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:13px;border-radius:18px;background:linear-gradient(135deg,rgba(0,0,0,.28),rgba(34,211,238,.06));border:1px solid rgba(255,255,255,.11)}.game-item small{color:#9fb6ca}.hidden{display:none!important}
.game{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:18px}.arena,.history{padding:20px}.topbar,.scoreboard,.actions{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.meta{display:grid;text-align:center}.meta strong{font-size:18px}.meta span{color:#9fdcf8;font-size:13px}.scoreboard{margin:22px 0}.player-card,.round{flex:1;min-width:150px;text-align:center;padding:16px;border-radius:22px;background:linear-gradient(145deg,rgba(255,255,255,.10),rgba(255,255,255,.04));border:1px solid rgba(255,255,255,.13)}.player-card b{display:block;overflow:hidden;text-overflow:ellipsis}.player-card span,.round b{display:block;font-size:38px;color:#67e8f9;text-shadow:0 0 20px rgba(34,211,238,.35)}.round span{color:#b5cce2;text-transform:uppercase;letter-spacing:.14em;font-size:11px}.countdown{text-align:center;font-size:clamp(38px,8vw,92px);font-weight:1000;letter-spacing:-.04em;min-height:1.2em;text-transform:uppercase;text-shadow:0 0 32px rgba(34,211,238,.58),0 0 70px rgba(139,92,246,.28)}.countdown.pulse{animation:pulse .55s ease}@keyframes pulse{50%{transform:scale(1.08);filter:brightness(1.6)}}.result{text-align:center;color:#c8d9e8;font-size:clamp(17px,2vw,22px);min-height:34px;margin-bottom:18px;font-weight:800}.choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.choice{display:grid;place-items:center;gap:7px;min-height:158px;margin:0;background:linear-gradient(145deg,rgba(255,255,255,.16),rgba(255,255,255,.055));position:relative;overflow:hidden;isolation:isolate}.choice:before{content:"";position:absolute;inset:-70%;background:conic-gradient(transparent,rgba(103,232,249,.30),transparent 30%);animation:spin 4.4s linear infinite;z-index:-1}.choice:after{content:"";position:absolute;inset:1px;border-radius:16px;background:linear-gradient(145deg,rgba(7,16,34,.75),rgba(15,23,42,.42));z-index:-1}.choice span{font-size:58px;filter:drop-shadow(0 0 16px rgba(34,211,238,.42))}.choice b{text-transform:uppercase;letter-spacing:.08em}.choice small{color:#aec1d3}@keyframes spin{to{transform:rotate(1turn)}}.choice.disabled,.choice:disabled{opacity:.58;cursor:not-allowed;transform:none;filter:saturate(.8)}.choice:disabled:hover{transform:none;box-shadow:none}.choice:disabled:before{animation:none;opacity:.25}
.duel{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;margin:24px 0}.hand{display:grid;place-items:center;min-height:182px;border-radius:26px;background:radial-gradient(circle at 50% 0,rgba(34,211,238,.12),transparent 55%),rgba(0,0,0,.24);border:1px solid rgba(255,255,255,.12);box-shadow:inset 0 0 28px rgba(34,211,238,.06)}.hand span{font-size:84px;filter:drop-shadow(0 0 20px rgba(34,211,238,.48))}.hand small{color:#b7c8dc;font-weight:800}.vs{font-weight:1000;color:#67e8f9;text-shadow:0 0 18px #22d3ee;font-size:clamp(20px,3vw,34px)}.history{max-height:660px;overflow:auto}.history-row{padding:12px;border-radius:16px;background:rgba(0,0,0,.22);margin-bottom:10px;color:#cfe7fb;border:1px solid rgba(255,255,255,.08)}.history-row b{color:white}.winner{color:#86efac!important}.danger{color:#fca5a5!important}
@media(max-width:940px){.hero{align-items:flex-start;flex-direction:column}.grid,.game{grid-template-columns:1fr}.history{max-height:none}.choices{gap:10px}.choice{min-height:134px}.choice span{font-size:46px}}
@media(max-width:580px){.app{padding:10px}.glass{border-radius:22px}.hero,.card,.arena,.history{padding:16px}.hero h1{font-size:clamp(38px,14vw,62px);line-height:.92}.brand-line img{width:40px;height:40px}.choices{grid-template-columns:1fr}.choice{min-height:94px;grid-template-columns:auto 1fr;justify-items:start;text-align:left;padding:14px 18px}.choice span{font-size:40px}.duel{grid-template-columns:1fr;gap:10px}.vs{text-align:center}.hand{min-height:114px}.hand span{font-size:58px}.scoreboard{display:grid;grid-template-columns:1fr 1fr}.round{grid-column:1/-1;order:-1}.player-card,.round{min-width:0}.topbar{display:grid;grid-template-columns:1fr auto}.meta{grid-column:1/-1;order:3}.score-pill{width:100%;text-align:center}.game-item{align-items:flex-start;flex-direction:column}.game-item button{width:100%}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}