:root {
  --bg: #f4eee2;
  --panel: #fbf8f1;
  --text: #2a241b;
  --line: #6f4e2d;
  --board: #d8b37b;
  --shadow: rgba(37, 24, 8, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 10%, #fff8eb 0%, transparent 32%),
    radial-gradient(circle at 90% 85%, #f0debf 0%, transparent 40%),
    var(--bg);
}

.app {
  min-height: 100vh;
  display: grid;
  place-content: center;
  gap: 10px;
  padding: 24px 14px;
}

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

#status {
  margin: 0;
  text-align: center;
}

#board {
  width: min(92vw, 600px);
  height: min(92vw, 600px);
  border: 2px solid var(--line);
  background: var(--board);
  border-radius: 10px;
  box-shadow: 0 14px 30px var(--shadow);
}