html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

#particles-js {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.monospace-block {
  background: #111827;
  color: #dcdcdc;
  padding: 1em;
  border-radius: 8px;
  font-family: 'Fira Code', monospace;
  font-size: 0.95em;
  white-space: pre-wrap;
  border: 1px solid #ffffff;
}

.custom-button {
  display: block;
  margin: 1rem auto 0;
  padding: 0.75em 1.5em;
  background-color: #111827;
  color: #ffffff;
  border: 1px solid #ffffff;
  border-radius: 8px;
  font-size: 1rem;
  font-family: 'Fira Code', monospace;
  cursor: pointer;
  transition: background-color 0.2s ease-in-out;
}

.custom-button:hover {
  background-color: rgb(79 70 229);
}

#paymentModal {
  overflow-y: auto;
  align-items: flex-start;
  padding: 2rem;
}

#paymentModal > div {
  max-height: 90vh;
  overflow-y: auto;
}

/* Dark flat scrollbar for modern browsers */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #1f2937; /* Tailwind's gray-800 */
}

::-webkit-scrollbar-thumb {
  background-color: #374151; /* Tailwind's gray-700 */
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: #4b5563; /* Tailwind's gray-600 */
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: #374151 #1f2937;
}