html{
  background: linear-gradient(to bottom, #6a11cb, #2575fc);
  min-height: 100%;
}
body {
  font-family: 'Lato', sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

article {
  width: 90%;
  max-width: 600px;
  margin: 60px auto;
  padding: 40px 30px;
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
  text-align: center;
  box-sizing: border-box;
}

h1 {
  font-size: 28px;
  font-family: "Asul", serif;
  color: #6a11cb;
  margin-bottom: 16px;
  font-weight: 700;
  line-height: 1.3;
}

.label-text {
  font-size: 20px;
  color: #444;
  margin-bottom: 10px;
}

.slider-container {
  margin: 30px 0;
}

.donation-slider {
  width: 100%;
  height: 14px;
  border-radius: 7px;
  background: #e0e0e0;
  outline: none;
  transition: background-color 0.3s;
}

.donation-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fcb900;
  border: 3px solid #fff;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  transition: transform 0.2s;
}

.donation-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.donation-slider::-moz-range-thumb {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fcb900;
  border: 3px solid #fff;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
  cursor: pointer;
}

#amount-display {
  font-weight: 700;
  font-size: 26px;
  color: #6a11cb;
  margin-top: 10px;
}

#checkout-button {
  background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
  color: white;
  font-size: 18px;
  font-weight: 600;
  padding: 14px 40px;
  border: none;
  border-radius: 40px;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
  margin-top: 30px;
}

#checkout-button:hover {
  background: linear-gradient(135deg, #5f0dbb, #1e62d0);
  transform: translateY(-2px);
}

#checkout-button:active {
  transform: translateY(1px);
  background: linear-gradient(135deg, #4e0c9c, #1a4ea6);

}

.sub{
  color: grey;
}