:root {
  --bg: #06041a;
  --cyan: #00f0ff;
  --violet: #9650ff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: radial-gradient(ellipse at center, #120830 0%, var(--bg) 70%);
  color: #ebf0ff;
  font-family: "Bahnschrift", "Barlow Semi Condensed", "Segoe UI", system-ui, sans-serif;
  overflow: hidden;
  overscroll-behavior: none;
}

main {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
}

#game {
  display: block;
  touch-action: none;           /* drag-to-steer on touch screens */
  border-radius: 6px;
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.15), 0 0 120px rgba(150, 80, 255, 0.12);
  outline: none;
  cursor: crosshair;
  -webkit-user-select: none;
  user-select: none;
}

#loading {
  position: absolute;
  display: grid;
  gap: 8px;
  text-align: center;
  font-size: clamp(32px, 7vw, 80px);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
  text-shadow: 0 0 18px var(--cyan), 0 0 40px var(--violet);
}

#loading small {
  font-size: 16px;
  font-weight: 500;
  color: var(--cyan);
  text-shadow: none;
}

.noscript {
  position: fixed;
  inset: auto 0 40% 0;
  text-align: center;
  font-size: 20px;
}