* { box-sizing: border-box; }
html, body {
  margin: 0;
  height: 100%;
  background: #050807;
  font-family: "Courier New", monospace;
  color: #e8f5e0;
  overflow: hidden;
}
#wrap {
  position: relative;
  width: min(100vw, 177.78vh);
  aspect-ratio: 16 / 9;
  margin: 0 auto;
  top: 50%;
  transform: translateY(-50%);
}
canvas {
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: auto;
}
.hidden { display: none !important; }
#hud {
  position: absolute;
  top: 2%;
  left: 2%;
  right: 2%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
#timer {
  font-size: clamp(16px, 3.2vw, 34px);
  font-weight: bold;
  background: rgba(0, 0, 0, 0.55);
  border: 3px solid #3a5a2a;
  padding: 4px 14px;
  color: #ffd27a;
}
button {
  font-family: inherit;
  font-size: clamp(14px, 2.2vw, 24px);
  font-weight: bold;
  color: #e8f5e0;
  background: #2f4a22;
  border: 3px solid #6bbf3a;
  padding: 6px 22px;
  margin: 6px;
  cursor: pointer;
}
button:hover { background: #46701f; }
.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(3, 8, 6, 0.8);
  text-align: center;
}
.overlay h1 {
  font-size: clamp(24px, 6vw, 64px);
  margin: 0 0 8px;
  color: #8fe05a;
  text-shadow: 4px 4px 0 #0b1a08;
  letter-spacing: 4px;
}
.overlay p { font-size: clamp(12px, 2vw, 22px); margin: 6px; }
.keys {
  display: flex;
  gap: 14px;
  margin-top: 14px;
  font-size: clamp(11px, 1.7vw, 18px);
  flex-wrap: wrap;
  justify-content: center;
}
.keys span { background: rgba(255, 255, 255, 0.08); padding: 6px 10px; }
.keys b { color: #ffb347; }

#lives { font-size: clamp(18px, 3.4vw, 36px); color: #ff4a5a; text-shadow: 2px 2px 0 #000; letter-spacing: 4px; }
#lives .off { color: #3a2a2e; }
#flags { display: flex; gap: 6px; }
#flags span { width: 18px; height: 14px; border: 3px solid; display: block; }
#timer.low { color: #ff5a5a; border-color: #8a2a2a; }
#timer.bonus { color: #7fe0ff; border-color: #2e9ae8; }
#menu { padding-left: 38%; }
#menu { background: rgba(3, 8, 6, 0.4); }