body {
  font-family: "Segoe UI", sans-serif;
  background-color: #f4f8fb;
  margin: 0;
  padding: 0;
  color: #333;
}
.container {
  max-width: 1000px;
  margin: auto;
  padding: 2rem;
}
.center {
  text-align: center;
}
h1 {
  color: #2a4365;
}
.grid-table {
  border-collapse: collapse;
  margin-top: 1rem;
  width: 100%;
}
.grid-table th,
.grid-table td {
  border: 1px solid #ccc;
  padding: 10px;
  text-align: center;
}
.grid-table th {
  background-color: #f0f0f0;
}
.grid-table td a {
  text-decoration: none;
  color: #333;
  
}
.highlight-cell {
  background-color: #5990f6;
}
.back-link {
  display: inline-block;
  margin-top: 1rem;
  color: #007BFF;
  text-decoration: none;
}
.back-link:hover {
  text-decoration: underline;
}

.axis-label {
  background-color: #f0f0f0;
  
}

.button-group {
  margin-top: 2rem;
}
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  margin: 1rem;
  background-color: #2a4365;
  color: white;
  text-decoration: none;
  border-radius: 5px;
}
.btn:hover {
  background-color: #1a304a;
}
.highlight {
    background-color: yellow;
    font-weight: bold;
}