body {
  margin: 0;
  font-family: 'Courier New', monospace;
  background-color: #1b1c1e;
  color: #eee;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.header-section {
  text-align: center;
  margin-bottom: 30px;
}

.header-section h1 {
  font-size: 2.5rem;
  color: #ff4c4c;
}

.summary {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.summary span {
  background: #2a2b2d;
  padding: 8px 15px;
  border-radius: 5px;
}

.charts {
  margin: 40px 0;
}

.history-section {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

th, td {
  padding: 8px 10px;
  text-align: center;
  border-bottom: 1px solid #444;
  word-wrap: break-word;
}

thead {
  background-color: #2a2b2d;
}

tbody tr:hover {
  background-color: #333;
}

canvas {
  background-color: #2a2b2d;
  border-radius: 8px;
  padding: 20px;
}