body {
  font-family: 'Arial', sans-serif;
  background-color: #f9f9f9;
  margin: 0;
  padding: 0;
  text-align: right;
}

header {
  background-color: #1e6b43;
  color: #fff;
  text-align: center;
  padding: 15px;
  font-size: 20px;
}

main { padding: 15px; }

.row {
  display: flex;
  justify-content: space-between;
  padding: 6px 10px;
  margin: 4px 0;
  background: #fff;
  border-radius: 6px;
  border: 1px solid #ddd;
  font-size: 17px;
}

.total { font-weight: bold; background: #f0f0f0; }

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
ul li {
  padding: 4px 0;
  font-size: 15px;
  border-bottom: 1px solid #eee;
}
ul li:last-child { border-bottom: none; }

.buttons {
  text-align: center;
  margin-top: 20px;
}
button {
  margin: 5px;
  padding: 8px 14px;
  border: none;
  border-radius: 6px;
  background: #333;
  color: #fff;
  cursor: pointer;
}
button:hover { background: #555; }