:root {
  --bg: #05010f;
  --p1: #ff2bd6;
  --p2: #19f0ff;
  --text: #e8e6ff;
}

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

html, body {
  height: 100%;
  background: radial-gradient(ellipse at center, #140630 0%, var(--bg) 70%);
  color: var(--text);
  font-family: "Courier New", Consolas, monospace;
  overflow: hidden;
}

#stage {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

#game {
  display: block;
  border-radius: 12px;
  box-shadow: 0 0 25px rgba(25, 240, 255, .25), 0 0 60px rgba(255, 43, 214, .15);
}

#mute {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 44px;
  height: 44px;
  font-size: 22px;
  line-height: 1;
  border: 1px solid rgba(232, 230, 255, .35);
  border-radius: 50%;
  background: rgba(5, 1, 15, .6);
  color: var(--text);
  cursor: pointer;
  z-index: 2;
}
#mute:hover { border-color: var(--text); }

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.1rem;
  text-align: center;
  background: rgba(5, 1, 15, .8);
  padding: 1rem;
  overflow-y: auto;
}

.overlay.hidden { display: none; }

.overlay h1 {
  font-size: clamp(2.6rem, 10vw, 6rem);
  letter-spacing: .3em;
  margin-right: -.3em;
  color: #fff;
  text-shadow: 0 0 10px var(--p2), 0 0 30px var(--p2), 0 0 60px var(--p1);
}

#overlay-msg {
  font-size: clamp(1.1rem, 3.5vw, 1.8rem);
  text-shadow: 0 0 8px currentColor;
}

#overlay-stats {
  font-size: clamp(.95rem, 2.8vw, 1.2rem);
  opacity: .8;
}
#overlay-stats:empty { display: none; }

.controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.player {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: .8rem 1.1rem;
  border: 2px solid currentColor;
  border-radius: 10px;
  box-shadow: 0 0 12px currentColor inset, 0 0 12px currentColor;
}
.player.p1 { color: var(--p1); }
.player.p2 { color: var(--p2); }
.player .label { font-weight: bold; text-transform: uppercase; letter-spacing: .1em; }
.player span:not(.label) { color: var(--text); }

.legend {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: .45rem 1.4rem;
  max-width: 34rem;
  width: 100%;
  text-align: left;
  font-size: .95rem;
}
.legend li { display: flex; align-items: center; gap: .6rem; }
.legend i {
  flex: none;
  display: inline-grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 6px;
  background: var(--c);
  color: #05010f;
  font-style: normal;
  font-weight: bold;
  font-size: .9rem;
  box-shadow: 0 0 8px var(--c);
}

kbd {
  display: inline-block;
  min-width: 1.8em;
  padding: .15em .45em;
  border: 1px solid var(--text);
  border-radius: 4px;
  font-family: inherit;
  font-weight: bold;
  background: rgba(255, 255, 255, .08);
}

.hint { opacity: .85; }