body {
  background: #eaf6ff;
  font-family: 'Segoe UI', sans-serif;
}

.card {
  border-radius: 16px;
}

.btn-water {
  background: #0d6efd;
  color: #fff;
  border-radius: 12px;
  padding: 12px;
  font-size: 18px;
}

.header {
  text-align: center;
  padding: 30px 10px;
}

.header img {
  width: 90px;
}

.header h1 {
  font-size: 22px;
  margin-top: 10px;
}