body {
  font-family: "Poppins", sans-serif;
  background-color: #f8fafc;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 900px;
  margin: 50px auto;
  background: white;
  padding: 20px 30px;
  border-radius: 16px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

h1 {
  text-align: center;
  color: #333;
  margin-bottom: 20px;
}

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

th, td {
  border: 1px solid #ddd;
  padding: 10px;
  text-align: center;
}

th {
  background-color: #3b82f6;
  color: white;
}

tr:nth-child(even) {
  background-color: #f1f5f9;
}

button {
  padding: 8px 12px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
}

#addBtn {
  background-color: #16a34a;
  color: white;
  width: 100%;
  margin-top: 10px;
}

.deleteBtn {
  background-color: #dc2626;
  color: white;
}

.editBtn {
  background-color: #f59e0b;
  color: white;
  margin-right: 5px;
}

input {
  width: 100%;
  padding: 10px;
  margin: 5px 0;
  border-radius: 8px;
  border: 1px solid #ddd;
}

.chart-container {
  margin-top: 40px;
}

canvas {
  width: 100% !important;
  max-height: 400px;
}