body {
  background-color: #f8f9fa;
}

.jumbotron {
  background: linear-gradient(135deg, #007bff, #6610f2);
  color: white;
  padding: 2rem 1rem;
  border-radius: 0.5rem;
  box-shadow: 0 4px 8px rgb(0 0 0 / 0.1);
}

#output-text {
  font-weight: 600;
  font-size: 1.2rem;
  color: #495057;
  background: #e9ecef;
  padding: 0.8rem 1rem;
  border-radius: 0.4rem;
  box-shadow: 0 2px 6px rgb(0 0 0 / 0.1);
  min-height: 3rem;
  display: flex;
  align-items: center;
}

.btn-secondary {
  background-color: #cce5ff !important;
  color: #212529 !important;
  font-size: 1.25rem !important;
  font-weight: 500 !important;
  pointer-events: none !important;
  user-select: none !important;
}
.select-label-container {
  display: flex;
  align-items: center;
  height: 100%;
}

.btn-upload input[type="file"] {
  position: absolute;
  top: 0;
  right: 0;
  min-width: 100%;
  min-height: 100%;
  font-size: 100px;
  text-align: right;
  opacity: 0;
  outline: none;
  background: white;
  cursor: inherit;
  display: block;
}

.btn-upload {
  position: relative;
  overflow: hidden;
  display: inline-block;
  background-color: #007bff;
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 0.3rem;
  cursor: pointer;
  font-weight: 500;
}

.section {
  margin-top: 2rem;
}

.submit-row {
  margin-top: 1.5rem;
  text-align: right;
}

.drop-status {
  padding: 1rem;
  font-style: italic;
  color: #666;
}

#status-msg {
  text-align: center;
  font-size: 1.2em;
  margin-top: 1em;
}

.section-divider {
  border: 0;
  height: 2px;
  background: linear-gradient(to right, transparent, #bbb, transparent);
  margin: 2.5rem 0;
}