html, body {
  margin: 0;
  padding: 0;
  background: #0a0a14;
  color: #fff;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 12px 40px;
  box-sizing: border-box;
}

h1 {
  margin: 0 0 14px;
  font-size: 20px;
  letter-spacing: 0.25em;
  color: #ffeb3b;
}

#hud {
  display: flex;
  gap: 28px;
  margin-bottom: 10px;
  font-size: 14px;
  letter-spacing: 0.08em;
}

#hud div {
  min-width: 100px;
}

#stage {
  position: relative;
  display: inline-block;
  border: 2px solid #1f3aff;
  box-shadow: 0 0 24px rgba(31, 58, 255, 0.35);
}

#game {
  display: block;
  background: #000;
}

#overlay {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.78);
  text-align: center;
  color: #ffeb3b;
}

#overlay .big {
  font-size: 22px;
  letter-spacing: 0.15em;
  margin-bottom: 10px;
}

#overlay .hint {
  margin-top: 12px;
  font-size: 12px;
  color: #ddd;
  letter-spacing: 0.05em;
}

#help {
  margin-top: 14px;
  font-size: 12px;
  color: #888;
  text-align: center;
  max-width: 320px;
}