.preferred-source {
  position: relative;
  box-sizing: border-box;
  padding: 1.1rem;
  border: 1px solid #e5e7eb;
  border-radius: .75rem;
  background: #fff;
  color: #374151;
}
.preferred-source[hidden] { display: none !important; }
.preferred-source-heading { margin: 0 1.5rem .4rem 0; font-size: .9375rem; font-weight: 700; color: #111827; }
.preferred-source-copy { margin: 0 0 .85rem; font-size: .8125rem; line-height: 1.5; }
.preferred-source-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  max-width: 100%;
  min-height: 44px;
  padding: .6rem .8rem;
  border: 1px solid #d1d5db;
  border-radius: .5rem;
  color: #111827;
  background: #f9fafb;
  font-size: .8125rem;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
}
.preferred-source-button:hover { background: #f3f4f6; border-color: #9ca3af; }
.preferred-source-button:focus-visible, .preferred-source-dismiss:focus-visible { outline: 2px solid #2563eb; outline-offset: 3px; }
.preferred-source-dismiss {
  position: absolute;
  top: 0;
  right: 0;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: .5rem;
  color: #6b7280;
  background: transparent;
  cursor: pointer;
  font-size: 1.4rem;
}
.preferred-source--sidebar { margin-top: 1.5rem; }
.preferred-source--inline { margin-top: 2rem; max-width: 46rem; background: #f9fafb; }
.preferred-source--mobile {
  position: fixed;
  z-index: 40;
  bottom: calc(5.5rem + env(safe-area-inset-bottom, 0px));
  left: 1rem;
  right: 1rem;
  max-width: 25rem;
  margin: 0 auto;
  box-shadow: 0 6px 24px rgba(17, 24, 39, .12);
}
.preferred-source--mobile .preferred-source-copy { font-size: .75rem; margin-bottom: .5rem; padding-right: .75rem; }
@media (min-width: 1024px) { .preferred-source--mobile { display: none !important; } }
@media (max-height: 500px), print { .preferred-source--mobile { display: none !important; } }
@media print { .preferred-source--sidebar, .preferred-source--inline { display: none !important; } }