:root {
  --bg-a: #f0f7e8;
  --bg-b: #d5edc6;
  --ink: #293124;
  --accent: #ff8443;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Verdana", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 10%, #ffffffa8 0 20%, transparent 21%),
    radial-gradient(circle at 90% 30%, #ffffff9c 0 18%, transparent 19%),
    linear-gradient(170deg, var(--bg-a), var(--bg-b));
  display: grid;
  place-items: center;
}

.game-shell {
  width: min(980px, 95vw);
  text-align: center;
}

h1 {
  margin: 0;
  letter-spacing: 0.04em;
}

.subtitle,
.help,
.status {
  margin: 0.4rem 0 0.9rem;
  color: #41523b;
}

.status {
  min-height: 1.25rem;
  font-weight: 700;
  color: #2b4024;
}

canvas {
  width: 100%;
  border: 4px solid #4f6b3f;
  border-radius: 14px;
  background: #8fd6ff;
  box-shadow: 0 16px 35px #27411f4f;
}