* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: #101522;
  color: #f2f5ff;
  font-family: Arial, sans-serif;
}

.game-shell {
  width: min(94vw, 500px);
  text-align: center;
}

h1 {
  margin: 0 0 0.4rem;
  font-size: 1.8rem;
}

.hint {
  margin: 0 0 0.9rem;
  color: #bcc7e7;
  font-size: 0.95rem;
}

.hud {
  display: flex;
  justify-content: space-between;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-bottom: 0.35rem;
  padding: 0 0.2rem;
  font-size: 0.95rem;
}

.radio-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.7rem;
  justify-content: center;
  margin: 0 0 0.55rem;
  padding: 0.45rem 0.5rem;
  border: 1px solid #3f4d73;
  border-radius: 8px;
  background: rgba(18, 25, 42, 0.72);
  font-size: 0.78rem;
  color: #cfdbff;
}

.radio-legend strong {
  color: #9ab4ff;
}

.canvas-wrap {
  position: relative;
  border: 2px solid #30406d;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.35);
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  background: #2e2e2e;
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 50% 30%, rgba(74, 113, 255, 0.32), transparent 46%),
    rgba(7, 11, 20, 0.8);
}

.overlay.hidden {
  display: none;
}

.overlay-card {
  width: min(86%, 300px);
  padding: 1rem 1rem 1.1rem;
  border: 2px solid #4e6ac3;
  border-radius: 12px;
  background: rgba(15, 22, 40, 0.9);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
}

.overlay-kicker {
  margin: 0 0 0.55rem;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: #9ab0ff;
  font-weight: 700;
}

#statusText {
  margin: 0;
  font-size: 1.04rem;
  font-weight: 600;
}

.overlay-help {
  margin: 0.55rem 0 0.9rem;
  color: #b8c5ea;
  font-size: 0.88rem;
}

.overlay-actions {
  display: grid;
  gap: 0.55rem;
}

button {
  border: 1px solid #82a5ff;
  border-radius: 9px;
  padding: 0.6rem 1.1rem;
  font-size: 0.98rem;
  font-weight: 700;
  background: linear-gradient(180deg, #5f87ff 0%, #3f67de 100%);
  color: #fff;
  cursor: pointer;
}

button:hover {
  background: linear-gradient(180deg, #7297ff 0%, #4d72e2 100%);
}

.ghost-btn {
  display: inline-block;
  border: 1px solid #4e6ac3;
  border-radius: 9px;
  padding: 0.52rem 1rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: #dce5ff;
  text-decoration: none;
  background: rgba(78, 106, 195, 0.2);
}

.ghost-btn:hover {
  background: rgba(78, 106, 195, 0.34);
}