body {
  font-family: Arial, sans-serif;
  background-color: #f2f2f2;
  margin: 0;
  padding: 20px;
}

.container {
  max-width: 800px;
  margin: auto;
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
  text-align: center;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

table,
th,
td {
  border: 1px solid #ccc;
}

th,
td {
  padding: 12px;
  text-align: left;
}

th {
  background-color: #eee;
}

a.button,
input[type="submit"],
button {
  display: inline-block;
  background-color: #4CAF50;
  color: white;
  padding: 8px 12px;
  text-decoration: none;
  border: none;
  border-radius: 4px;
  margin-right: 5px;
  cursor: pointer;
}

a.button.danger,
button.danger {
  background-color: #e74c3c;
}

a.button.secondary {
  background-color: #999;
}

form .form-group {
  margin-bottom: 15px;
}