:root{
  color-scheme: dark;
  --bgA: rgba(90, 170, 255, .30);
  --bgB: rgba(10, 12, 22, .96);
  --card: rgba(18,18,24,.48);
  --border: rgba(255,255,255,.16);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.70);
  --shadow: 0 18px 60px rgba(0,0,0,.35);
  --radius: 14px;
  --accent: rgba(120, 230, 255, .95);
  --danger: rgba(255, 100, 130, .95);
  --ok: rgba(140, 255, 200, .95);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  overflow-x:hidden;
}

.bg{
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(1100px 700px at 20% 10%, rgba(120,230,255,.16), transparent 60%),
    radial-gradient(900px 600px at 80% 20%, rgba(170,120,255,.12), transparent 55%),
    linear-gradient(180deg, var(--bgA), var(--bgB));
}

.wrap{
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 16px 26px;
}

.top{
  display:flex;
  gap: 14px;
  align-items: stretch;
  justify-content: space-between;
  flex-wrap: wrap;
}

.brand,
.panel,
.arena,
.log,
.moves,
.foot{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.brand{
  display:flex;
  gap: 12px;
  align-items:center;
  padding: 14px 16px;
}
.logo{
  width: 52px;
  height: 52px;
  display:grid;
  place-items:center;
  border-radius: 14px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  font-size: 18px;
}
.brand h1{margin:0;font-size:18px;line-height:1.2}
.sub{margin:4px 0 0;color:var(--muted);font-size:12px}

.panel{
  flex: 1 1 520px;
  min-width: 300px;
  padding: 14px 16px;
  display:grid;
  gap: 12px;
}

.stats{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.stat{
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  display:flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.label{font-size:11px;letter-spacing:.12em;color:var(--muted)}
.value{font-variant-numeric: tabular-nums; font-weight: 750;}

.controls{
  display:flex;
  gap: 10px;
  align-items:end;
  flex-wrap: wrap;
}
.control{
  display:flex;
  flex-direction: column;
  gap: 6px;
  min-width: 180px;
}
.control span{font-size:12px;color:var(--muted)}
select{
  width: 100%;
  padding: 10px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(10,10,14,.55);
  color: var(--text);
  outline: none;
}

.btn{
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(130, 230, 255, .12);
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
}
.btn:hover{ background: rgba(130,230,255,.18); }
.btn:active{ transform: translateY(1px); }

.game{
  margin-top: 14px;
  display:grid;
  gap: 12px;
}

.arena{
  padding: 14px;
  display:grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  align-items:center;
}
.pickLabel{color: var(--muted); font-size: 12px; margin-bottom: 8px;}
.pickCard{
  height: 92px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  display:grid;
  place-items:center;
  font-size: 44px;
}
.vs{
  font-weight: 900;
  letter-spacing: .18em;
  opacity: .75;
}

.moves{
  padding: 14px;
  display:grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 10px;
}
.move{
  padding: 14px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: var(--text);
  cursor:pointer;
  display:grid;
  gap: 6px;
  place-items:center;
}
.move:hover{ background: rgba(255,255,255,.10); }
.move:active{ transform: translateY(1px); }
.emoji{ font-size: 32px; }
.name{ font-weight: 800; }
.move[disabled]{ opacity: .55; cursor: not-allowed; }

.log{
  padding: 14px;
}
.message{ font-weight: 750; }
.hint{ margin-top: 8px; color: var(--muted); font-size: 12px; }

kbd{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.95em;
  padding: 2px 6px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.25);
}

.foot{
  margin-top: 14px;
  padding: 10px 12px;
  text-align:center;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 640px){
  .stats{ grid-template-columns: 1fr; }
  .arena{ grid-template-columns: 1fr; }
  .vs{ display:none; }
  .moves{ grid-template-columns: 1fr; }
}