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

html, body {
  height: 100%;
  background: #05060a;
  color: #c8d0e0;
  font-family: "Segoe UI", system-ui, sans-serif;
}

/* Arcade hub chrome */
.arcade-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 14px;
  background: #020806;
  border-bottom: 2px solid #00ff66;
  font-family: monospace;
  font-size: 13px;
  letter-spacing: 0.08em;
}

.arcade-bar a {
  color: #00ff66;
  text-decoration: none;
}

.arcade-bar a:hover {
  color: #fff;
  text-shadow: 0 0 8px #0f6;
}

.arcade-bar-title {
  color: #8cf;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.arcade-bar-right a {
  color: #ffcc00;
}

#wrap {
  min-height: calc(100% - 42px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px;
}

#stage {
  position: relative;
  width: min(96vw, 960px);
  aspect-ratio: 16 / 9;
  background: #000;
  border: 2px solid #2a3348;
  border-radius: 4px;
  box-shadow: 0 0 40px rgba(40, 120, 255, 0.15);
  overflow: hidden;
}

#intro {
  position: absolute;
  inset: 0;
  display: none;
  background: #000;
  z-index: 2;
}

#intro.active {
  display: block;
}

#intro-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
}

#intro-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 12%;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.75) 0%,
    rgba(0, 0, 0, 0.25) 40%,
    rgba(0, 0, 0, 0.1) 100%
  );
  pointer-events: none;
  z-index: 3;
}

#intro-prompt {
  font-family: monospace;
  font-weight: 700;
  font-size: clamp(18px, 3.2vw, 32px);
  letter-spacing: 0.18em;
  color: #ffffff;
  text-shadow:
    0 0 8px #4af,
    0 0 18px rgba(68, 170, 255, 0.7),
    2px 2px 0 #000;
  text-align: center;
}

#intro-sub {
  margin-top: 12px;
  font-family: monospace;
  font-size: clamp(10px, 1.4vw, 13px);
  letter-spacing: 0.08em;
  color: rgba(200, 220, 255, 0.75);
  text-shadow: 1px 1px 0 #000;
  text-align: center;
}

.buy-xelon {
  margin-top: 16px;
  display: inline-block;
  font-family: monospace;
  font-weight: 700;
  font-size: clamp(11px, 1.6vw, 14px);
  letter-spacing: 0.12em;
  color: #0a0;
  background: rgba(0, 255, 65, 0.12);
  border: 1px solid #00ff41;
  padding: 8px 14px;
  text-decoration: none;
  text-shadow: 0 0 8px rgba(0, 255, 65, 0.5);
  pointer-events: auto;
  transition: background 0.15s ease, color 0.15s ease;
}

.buy-xelon:hover {
  background: rgba(0, 255, 65, 0.28);
  color: #fff;
}

.blink {
  animation: blink 1.1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.15; }
}

#game {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: #000;
}

#game[hidden] {
  display: none;
}

#hint {
  font-size: 13px;
  opacity: 0.75;
  text-align: center;
  max-width: 960px;
  line-height: 1.5;
}

kbd {
  display: inline-block;
  padding: 1px 6px;
  border: 1px solid #445;
  border-radius: 3px;
  background: #151a24;
  font-size: 12px;
  color: #9cf;
}