:root{--bg:#0f1720;--card:#0b1220;--accent:#ffb86b;--muted:#9aa4b2}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,Segoe UI,Roboto,Arial;background:linear-gradient(180deg,#07101a 0%, #08131a 100%);color:#e6eef6}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:18px 24px;background:linear-gradient(90deg, rgba(255,255,255,0.03), transparent)}
.topbar h1{margin:0;font-size:20px}
.score{font-weight:700}
.main{display:flex;gap:18px;padding:18px}
.left-panel{width:320px}
.card{background:rgba(255,255,255,0.02);padding:16px;border-radius:12px;box-shadow:0 6px 18px rgba(2,6,23,0.6)}
.card.small{margin-top:12px}
.btn{display:inline-block;padding:10px 16px;border-radius:10px;background:transparent;color:var(--accent);border:1px solid rgba(255,184,107,0.15);cursor:pointer}
.btn.primary{background:linear-gradient(90deg,#ff9f43,#ffb86b);color:#07101a;border:none;font-weight:700}
.controls{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.history{margin-top:12px;max-height:220px;overflow:auto}
.canvas-wrap{flex:1;display:flex;flex-direction:column;align-items:center}
#gameCanvas{background:linear-gradient(180deg,#07202b,#05202b);border-radius:12px;box-shadow:0 12px 30px rgba(2,6,23,0.7);width:100%;max-width:920px;height:70vh}
.legend{display:flex;gap:12px;margin-top:10px}
.chip{display:inline-block;width:16px;height:16px;border-radius:50%;margin-right:6px}
.chip.red{background:#e74c3c}
.chip.green{background:#2ecc71}
.chip.gold{background:#f1c40f}
.muted{color:var(--muted);font-size:13px}
.footer{padding:12px;text-align:center}
@media(max-width:900px){.main{flex-direction:column}.left-panel{width:100%}#gameCanvas{height:60vh}}