* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 24px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN",
               "Yu Gothic UI", Meiryo, sans-serif;
  background: #0d1117;
  color: #e6edf3;
  line-height: 1.6;
}

header {
  max-width: 1200px;
  margin: 0 auto 16px;
}

header h1 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

header .lead {
  margin: 0;
  font-size: 13px;
  color: #8b949e;
}

main {
  max-width: 1200px;
  margin: 0 auto;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  max-width: 1200px;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
}

#hud {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  margin: 16px 0 24px;
  padding: 12px 16px;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.metric {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #c9d1d9;
}

.metric span:not(.dot) {
  color: #e6edf3;
  font-weight: 600;
  margin-left: 2px;
}

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-idle { background: rgba(110, 118, 129, 0.55); border: 1px solid #30363d; }
.dot-walking { background: #ffd33d; }
.dot-playing { background: #ff5252; }
.dot-done { background: #7ee787; }

footer {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 16px;
  border-top: 1px solid #30363d;
  font-size: 12px;
  color: #8b949e;
}

footer a {
  color: #58a6ff;
}

@media (max-width: 1240px) {
  body { padding: 16px; }
  canvas { max-width: 100%; }
}