:root{
  --bg:#04020a;
  --panel:#0f1724;
  --accent:#ffd166;
  --muted:#9aa8b2;
  --glass: rgba(255,255,255,0.03);
  --glass-2: rgba(255,255,255,0.02);
  --radius:14px;
}

*{box-sizing:border-box}
html,body,#gameCanvas{height:100%}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial;
  background: radial-gradient(circle at 10% 20%, rgba(34,15,78,0.45), transparent 10%),
              radial-gradient(circle at 90% 80%, rgba(12,90,120,0.25), transparent 15%),
              var(--bg);
  color:#e6eef6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  min-height:100vh;
  display:flex;
  align-items:stretch;
  flex-direction:column;
}

/* topbar */
.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:18px 28px;
  gap:12px;
  backdrop-filter: blur(6px);
}
.topbar .left h1{
  margin:0;font-size:20px;letter-spacing:0.2px;
}
.subtitle{margin:2px 0 0;color:var(--muted);font-size:13px}

/* controls */
.controls-row{display:flex;align-items:center;gap:8px}
.controls-row select, .controls-row .btn{
  padding:8px 10px;border-radius:10px;border:1px solid rgba(255,255,255,0.06);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  color:inherit; font-size:13px;
}
.btn{cursor:pointer}
.btn.primary{background:linear-gradient(180deg,var(--accent),#ffb74a);color:#03060a;border:none;box-shadow:0 6px 18px rgba(255,177,64,0.14)}

/* scores */
.score-row{display:flex;gap:14px;align-items:center;margin-top:8px}
.score-row .score,.score-row .highscore,.score-row .catches{font-weight:600;background:var(--glass);padding:8px 12px;border-radius:10px;color:#fff}

/* main area */
.game-area{
  display:flex;
  gap:18px;
  padding:14px;
  flex:1;
  position:relative;
}

/* canvas area */
canvas#gameCanvas{
  flex:1;
  border-radius:16px;
  background-image: url("https://images.unsplash.com/photo-1454789548928-9efd52dc4031?auto=format&fit=crop&w=1600&q=80");
  background-size:cover;
  background-position:center;
  box-shadow:
    inset 0 0 80px rgba(255,255,255,0.02),
    0 12px 30px rgba(2,6,23,0.6);
  display:block;
  width:100%;
  height:100%;
}

/* right panel */
.right-panel{
  width:300px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.panel-card{
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border-radius:12px;
  padding:12px;
  backdrop-filter: blur(6px);
  border:1px solid rgba(255,255,255,0.03);
}
.panel-card h3{margin:0 0 8px 0}
.panel-card.small p{margin:6px 0;color:var(--muted)}
.panel-card ul{margin:0;padding-left:18px;color:var(--muted);font-size:14px}

.footer{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:10px 18px;
  color:var(--muted);
  font-size:13px;
  border-top:1px solid rgba(255,255,255,0.02);
}

/* responsive */
@media (max-width:960px){
  .right-panel{display:none}
  canvas#gameCanvas{border-radius:0}
}