:root {
  --bg: #0c0e16;
  --panel: #161a28;
  --accent: #ffcc33;
  --accent2: #ff5a5f;
  --text: #e8ecf5;
  --muted: #8b93a7;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(circle at 50% -10%, #1d2235 0%, var(--bg) 60%);
  color: var(--text);
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  min-height: 100vh;
}

#game-wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 18px 16px 40px;
  text-align: center;
}

header h1 {
  margin: 6px 0 2px;
  font-size: 30px;
  letter-spacing: 1px;
  text-shadow: 0 2px 0 #000, 0 0 18px rgba(255, 204, 51, 0.35);
}

.tagline {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
}

#canvas-holder {
  display: inline-block;
  line-height: 0;
  border: 3px solid #2a3047;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.55);
}

canvas { display: block; }

footer {
  margin-top: 18px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  justify-content: center;
  color: var(--muted);
  font-size: 13px;
}

kbd {
  background: var(--panel);
  border: 1px solid #2f3650;
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 1px 7px;
  font-family: inherit;
  color: var(--text);
  font-size: 12px;
}