body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main.container {
  flex: 1 0 auto;
}
.footer {
  flex-shrink: 0;
  font-size: 0.95rem;
  color: #666;
  border-top: 1px solid #eee;
  background: #fafbfc;
}
@media (max-width: 767.98px) {
  main.container {
    padding-top: 2rem;
    padding-bottom: 2rem;
  }
  .footer {
    font-size: 0.9rem;
    padding: 1rem 0;
  }
}