body {
  font-family: Arial, sans-serif;
  background: #f7f7f7;
  margin: 0;
  padding: 20px;
}

.container {
  max-width: 1100px;
  margin: auto;
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

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

.styled-table {
  border-collapse: collapse;
  margin: 20px 0;
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
}

.styled-table thead tr {
  background-color: #009879;
  color: #ffffff;
  text-align: left;
  font-weight: bold;
}

.styled-table th, .styled-table td {
  padding: 12px 15px;
}

.styled-table tbody tr {
  border-bottom: 1px solid #dddddd;
}

.styled-table tbody tr:nth-of-type(even) {
  background-color: #f3f3f3;
}

.styled-table tbody tr:last-of-type {
  border-bottom: 2px solid #009879;
}

.btn {
  padding: 6px 12px;
  border: none;
  border-radius: 6px;
  background-color: #009879;
  color: #fff;
  cursor: pointer;
  font-size: 14px;
}
.btn:hover { background-color: #007f67; }

.btn-danger { background-color: #e74c3c; }
.btn-danger:hover { background-color: #c0392b; }

.btn-secondary { background-color: #3498db; }
.btn-secondary:hover { background-color: #217dbb; }