:root {
  color-scheme: dark;
  font-family: "Courier New", Courier, monospace;
  background: #03020a;
  color: #ecfff5;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  padding: 32px 16px;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at top, rgb(91 32 128 / 35%), transparent 42%),
    #03020a;
}

.game-shell {
  width: min(100%, 520px);
  text-align: center;
}

.game-header h1 {
  margin: 6px 0 8px;
  color: #39ff88;
  font-size: clamp(2rem, 8vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.06em;
  text-shadow: 0 0 18px rgb(57 255 136 / 70%);
}

.eyebrow {
  margin: 0;
  color: #ff3cac;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.subtitle,
.controls p {
  color: #b8b1c8;
  line-height: 1.5;
}

.hud {
  min-height: 62px;
  margin: 24px 0 12px;
  padding: 10px 14px;
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  border: 1px solid rgb(57 255 136 / 35%);
  background: rgb(8 7 20 / 85%);
  text-align: left;
}

.hud p {
  margin: 0;
}

#score {
  color: #39ff88;
  font-weight: 700;
}

#status {
  color: #ddd6e9;
  font-size: 0.85rem;
  text-align: right;
}

#game-container {
  overflow: hidden;
  border: 3px solid #ff3cac;
  border-radius: 4px;
  box-shadow:
    0 0 18px rgb(255 60 172 / 55%),
    0 0 42px rgb(57 255 136 / 22%);
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  background: #03020a;
  outline: none;
}

canvas:focus-visible {
  box-shadow: inset 0 0 0 3px #fff;
}

.controls {
  margin-top: 20px;
}

button {
  border: 1px solid #39ff88;
  border-radius: 3px;
  padding: 10px 16px;
  background: transparent;
  color: #39ff88;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

button:hover,
button:focus-visible {
  background: #39ff88;
  color: #03020a;
  outline: none;
  box-shadow: 0 0 18px rgb(57 255 136 / 55%);
}

@media (max-width: 480px) {
  body {
    padding: 20px 12px;
  }

  .hud {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  #status {
    text-align: left;
  }
}