* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: #2b1d14;
  color: #fff5e1;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
#app {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  gap: 12px;
  position: relative;
}
#hud {
  display: flex;
  gap: 24px;
  align-items: center;
  font-size: 18px;
  background: #3d2a1c;
  padding: 10px 18px;
  border-radius: 10px;
  box-shadow: 0 2px 0 #1a0f08;
}
.hud-item { display: flex; align-items: center; gap: 8px; }
#next { background: #2b1d14; border-radius: 6px; }
#stage {
  width: 400px;
  height: 600px;
  background: linear-gradient(#fff8e7, #ffe8b0);
  border: 4px solid #6b4423;
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  touch-action: none;
  cursor: pointer;
}
#stage canvas { display: block; }
#gameover {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0,0,0,0.8);
  padding: 30px 50px;
  border-radius: 12px;
  text-align: center;
  font-size: 20px;
}
.go-title { font-size: 32px; margin: 0 0 10px; color: #ffcc66; }
#restart {
  margin-top: 12px;
  padding: 10px 24px;
  font-size: 16px;
  background: #ffcc66;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
}
#restart:hover { background: #ffd780; }