body {
 background: #536976;  /* fallback for old browsers */
background: -webkit-linear-gradient(to right, #292E49, #536976);  /* Chrome 10-25, Safari 5.1-6 */
background: linear-gradient(to right, #292E49, #536976); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */

  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;

  
}

/* Center the entire modal */
main {
  width: 100%;
  display: flex;
  justify-content: center;
}

.modal-dialog {
  max-width: 500px;
  width: 100%;
}

/* Input fields: From & To */
.form-floating {
  margin-bottom: 1rem;
}

.form-floating input[list] {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  border-radius: 0.375rem;
  border: 1px solid #ced4da;
}

/* Amount input (smaller, below From) */
.amount-input-wrapper {
  width: 60%;
  margin: 0.5rem auto 1.5rem auto;
}

.amount-input-wrapper input {
  width: 100%;
  padding: 0.4rem 0.6rem;
  font-size: 0.95rem;
  border-radius: 0.375rem;
  border: 1px solid #ced4da;
}

/* Button: centered */
.btn-primary {
  background: #022c44;
  border: none;
  transition: all 0.3s ease;
  width: 50%;
  margin: 0 auto;
  display: block;
}

.btn-primary:hover {
  background: #1090da;
  transform: translateY(-2px);
}

/* Labels */
label {
  color: rgb(196, 116, 42);
  font-weight: 500;
  margin-bottom: 0.25rem;
  display: block;
}

/* Result section */
.result-card {
  margin-top: 1.5rem;
}

/* Responsive */
@media (max-width: 576px) {
  .modal-content {
    padding: 1rem;
  }
  .btn-primary {
    width: 70%;
  }
  .amount-input-wrapper {
    width: 80%;
  }
}