@media (max-width: 600px) {
  .nav-guest { display: inline-block; }
}

.expiration-notice {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding: 16px 18px;
  border: 2px solid #f36b16;
  border-radius: 16px;
  background: #fff3e9;
  color: #67300e;
}
.expiration-notice[hidden] { display: none; }
.expiration-notice span { flex: 1; font-size: .86rem; }
.buyer-warning { color: #b44d0b !important; font-weight: 850; }
.buyer-contact { display: flex !important; gap: 6px; margin-top: 3px; }
.buyer-contact a { color: #075d39; font-size: .72rem; font-weight: 850; }
.promotion-intro { display: block; margin: -6px 0 14px; color: #d8e8df; font-size: .84rem; }
.compact-contact .promotion-whatsapp { background: #f36b16; color: #fff; }

@media (max-width: 600px) {
  .expiration-notice { align-items: flex-start; flex-direction: column; }
  .expiration-notice button { width: 100%; }
}