.splitezy-box {
  border: 1px solid #ddd;
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 12px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
  background-color: #fff;
  max-width: 500px;
}

.splitezy-box label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  color: #333;
  font-size: 14px;
}

.splitezy-box input,
.splitezy-box select {
  width: 100%;
  padding: 10px;
  margin-bottom: 12px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 14px;
  background: #f9f9f9;
  transition: border-color 0.2s;
}

.splitezy-box input:focus,
.splitezy-box select:focus {
  outline: none;
  border-color: #0077ff;
  background-color: #fff;
}

#splitezy-start-payment {
  background-color: #0066ff;
  color: #fff;
  padding: 12px 25px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 20px;
  transition: background-color 0.2s ease;
}

#splitezy-start-payment:hover {
  background-color: #004ecb;
}

@media only screen and (max-width: 600px) {
  .splitezy-box {
    padding: 12px;
    font-size: 14px;
  }

  #splitezy-start-payment {
    width: 100%;
    font-size: 15px;
  }
}