* {
  box-sizing: border-box;
  margin: 0; padding: 0;
}

body {
  background: #f8fafc;
  color: #0f172a;
  font-family: 'Fira Code', monospace;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100vh;
}

header {
  text-align: center;
  margin: 20px 0;
}

header h1 {
  font-size: 32px;
  background: linear-gradient(90deg, #3b82f6, #f97316);
  -webkit-background-clip: text;  background-clip: text;
  -webkit-text-fill-color: transparent;
}

header p {
  color: #64748b;
  margin-top: 5px;
}

main {
  display: flex;
  gap: 20px;
  background: transparent;
  padding: 20px;
  border-radius: 8px;
  box-shadow: none;
}

canvas {
  background: #ffffff;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
}

#sidePanel {
  width: 250px;
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  padding: 15px;
}

#sidePanel h2 {
  font-size: 18px;
  margin-bottom: 15px;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 8px;
  color: #0f172a;
}

#scoreList {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.score-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  background: #f1f5f9;
  padding: 8px 12px;
  border-radius: 6px;
}

.score-color {
  width: 14px;
  height: 14px;
  border-radius: 50%;
}