body {
  font-family: 'Cairo', sans-serif;
  background: linear-gradient(135deg, #e0f7fa, #e1bee7);
  color: #333;
  margin: 0;
  padding: 0;
  text-align: center;
}

.container {
  max-width: 1000px;
  margin: 40px auto;
  background: white;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

h1 {
  color: #4a148c;
}

.controls, .actions {
  margin: 20px 0;
}

select, button {
  padding: 10px;
  margin: 5px;
  border-radius: 8px;
  border: 1px solid #ccc;
  font-size: 16px;
}

.btn.primary {
  background: #4a148c;
  color: white;
  border: none;
}

.btn:hover {
  opacity: 0.9;
}

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

th, td {
  border: 1px solid #ddd;
  padding: 10px;
}

th {
  background: #f3e5f5;
}

tr:nth-child(even) {
  background: #fafafa;
}