* { box-sizing: border-box; margin: 0; padding: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial; }
body {
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #79bcd7 0%, #bfe9ff 60%, #fff 100%);
  color: #222;
}
.container {
  text-align: center;
  width: 420px;
}
h1 { margin-bottom: 8px; font-size: 20px; }
canvas {
  display: block;
  margin: 0 auto;
  background: linear-gradient(#9fe6a0, #66c57a);
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}
.controls {
  margin-top: 10px;
  display:flex;
  gap:8px;
  align-items:center;
  justify-content:center;
}
.controls button {
  padding:6px 10px;
  border-radius:6px;
  border: none;
  background: #ffde59;
  cursor: pointer;
  font-weight:600;
}
.controls .score { font-weight:700; }
.hint { margin-top:8px; color:#444; font-size:13px; }