:root{
  --cf-orange: #f97316;
  --cf-dark: #0f172a;
  --bg: linear-gradient(135deg,#fff7f0 0%,#ffffff 40%);
  --glass: rgba(255,255,255,0.8);
}
*{box-sizing:border-box;font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial;}
body{margin:0;background:var(--bg);color:var(--cf-dark);min-height:100vh;display:flex;flex-direction:column;}
.topbar{padding:18px 28px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(0,0,0,0.04);background:rgba(255,255,255,0.6);backdrop-filter: blur(6px);}
.topbar h1{margin:0;font-size:18px;color:var(--cf-dark);}
.controls{display:flex;gap:12px;align-items:center;}
.status span{margin-right:12px;font-size:14px;}
.main{display:flex;gap:18px;padding:20px;flex:1;}
.game-area{flex:1;position:relative;display:flex;align-items:flex-start;justify-content:center;}
canvas{border-radius:12px;box-shadow:0 8px 30px rgba(15,23,42,0.12);background:
  radial-gradient(circle at 10% 10%, rgba(255,244,236,0.6), transparent 10%),
  linear-gradient(180deg, rgba(255,255,255,0.6), rgba(255,250,245,0.9));
}
.legend{position:absolute;left:20px;top:20px;background:var(--glass);padding:10px;border-radius:8px;box-shadow:0 6px 20px rgba(15,23,42,0.06);}
.legend h3{margin:0 0 6px 0;font-size:13px;}
.marker{display:inline-block;width:14px;height:14px;border-radius:3px;margin-right:8px;vertical-align:middle;}
.sidebar{width:320px;display:flex;flex-direction:column;gap:12px;}
.panel{background:white;padding:12px;border-radius:10px;box-shadow:0 6px 20px rgba(15,23,42,0.06);}
#towersList button{width:100%;text-align:left;padding:10px;margin-bottom:8px;border-radius:8px;border:1px solid rgba(0,0,0,0.06);background:linear-gradient(180deg,#fff,#fff7f2);}
.logs{max-height:240px;overflow:auto;font-size:13px;}
.footer{padding:12px;text-align:center;font-size:13px;color:rgba(15,23,42,0.6);}
button{cursor:pointer}
.muted{color:rgba(15,23,42,0.5);font-size:13px;}