:root {
  --bg: #070312;
  --panel: rgba(7, 3, 18, 0.86);
  --cyan: #4de0ff;
  --pink: #ff5d9a;
  --gold: #ffe14d;
  --green: #3dff8f;
  --red: #ff4060;
  --purple: #c060ff;
  --text: #e6ecff;
  --dim: #8a90b8;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Courier New", monospace;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#stage {
  position: relative;
  width: min(100vw, calc(100vh * 1.6));
  height: min(100vh, calc(100vw / 1.6));
  overflow: hidden;
}

#game-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

#hud {
  position: absolute;
  inset: 0;
  display: none;
  pointer-events: none;
  font-size: 13px;
  letter-spacing: 0.06em;
}

.hud-left { position: absolute; left: 12px; bottom: 8px; }
.hud-right { position: absolute; right: 12px; bottom: 8px; }

.hud-item {
  color: var(--dim);
  margin-right: 16px;
  white-space: nowrap;
}

.val { color: var(--cyan); text-shadow: 0 0 8px var(--cyan); }

#mute-btn {
  position: absolute;
  right: 12px;
  top: 8px;
  font-family: inherit;
  font-size: 12px;
  color: var(--dim);
  background: none;
  border: none;
  cursor: pointer;
}
#mute-btn.off { color: #3a3f5c; text-decoration: line-through; }

#topbar { position: absolute; top: 8px; left: 12px; }
.icon-btn { color: var(--dim); text-decoration: none; font-size: 16px; }
.icon-btn:hover { color: var(--cyan); }

.screen {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--panel);
  text-align: center;
  padding: 16px;
}

#menu { display: flex; }

h1 { font-size: 30px; letter-spacing: 0.1em; color: var(--cyan); text-shadow: 0 0 14px var(--cyan); }
.blurb { color: var(--dim); }
.hint { color: var(--dim); font-size: 12px; }
p { color: var(--text); }
strong { color: var(--gold); text-shadow: 0 0 8px var(--gold); }

#intro-text {
  color: var(--green);
  font-size: 22px;
  letter-spacing: 0.12em;
  text-shadow: 0 0 12px var(--green);
}

.btn {
  font-family: inherit;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  background: rgba(77, 224, 255, 0.08);
  border: 1px solid var(--cyan);
  border-radius: 6px;
  padding: 10px 24px;
  cursor: pointer;
  text-shadow: 0 0 8px var(--cyan);
  box-shadow: 0 0 12px rgba(77, 224, 255, 0.35);
}
.btn:hover { background: rgba(77, 224, 255, 0.18); }
.btn.pink {
  color: var(--pink);
  border-color: var(--pink);
  background: rgba(255, 93, 154, 0.08);
  text-shadow: 0 0 8px var(--pink);
  box-shadow: 0 0 12px rgba(255, 93, 154, 0.35);
}
.btn.gold {
  color: var(--gold);
  border-color: var(--gold);
  background: rgba(255, 225, 77, 0.08);
  text-shadow: 0 0 8px var(--gold);
  box-shadow: 0 0 12px rgba(255, 225, 77, 0.35);
}

form.score-entry {
  display: none;
  flex-direction: row;
  gap: 8px;
  align-items: center;
}
form.score-entry input {
  font-family: inherit;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--purple);
  border-radius: 4px;
  padding: 6px 10px;
  width: 90px;
}

.score-list { margin-top: 8px; }
.score-list li { color: var(--gold); font-size: 13px; margin-bottom: 4px; }
.back-link { color: var(--dim); }
.back-link:hover { color: var(--cyan); }