:root{
  --bg: #0f1724;
  --panel: #0b1220;
  --accent: #00e1a8;
  --muted: #94a3b8;
  --text: #e6eef8;
}

*{box-sizing:border-box;font-family:Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;}

body{
  margin:0;
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(180deg,var(--bg), #081223);
  color:var(--text);
}

.container{
  width:860px;
  text-align:center;
}

h1{
  margin:10px 0 6px;
  font-weight:600;
  font-size:20px;
  color:var(--accent);
}

.scoreboard{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:10px;
}

.score{
  background:var(--panel);
  padding:10px 16px;
  border-radius:8px;
  min-width:72px;
  font-size:20px;
  color:var(--text);
  box-shadow: 0 6px 18px rgba(4,9,20,0.6);
}

.controls{
  display:flex;
  gap:8px;
  align-items:center;
}

.controls button{
  background:transparent;
  border:1px solid rgba(255,255,255,0.08);
  color:var(--text);
  padding:8px 12px;
  border-radius:8px;
  cursor:pointer;
  transition:all .12s ease;
}
.controls button:hover{transform:translateY(-2px); box-shadow:0 6px 18px rgba(0,0,0,0.6)}
.controls button:active{transform:translateY(0)}

canvas{
  display:block;
  margin:0 auto;
  background:linear-gradient(180deg,#071328 0%, #02101a 100%);
  border-radius:8px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.6);
  cursor: crosshair;
}

/* small hint text */
.hint{
  margin-top:8px;
  font-size:13px;
  color:var(--muted);
}