.welcomePopup {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0, 20, 66, .78);
  backdrop-filter: blur(7px);
}
.welcomePopup[hidden] { display: none; }
.welcomePopupBox {
  position: relative;
  width: min(720px, 94vw);
  padding: 30px;
  border: 3px solid #ff7a00;
  border-radius: 28px;
  background: linear-gradient(145deg, #063b9b, #001f68);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .48), 0 0 30px rgba(255, 122, 0, .35);
  text-align: center;
  animation: popupEntrance .45s ease-out both;
}
.welcomePopupBox img {
  display: block;
  width: 100%;
  max-height: 58vh;
  object-fit: contain;
}
.welcomePopupDates {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px;
  color: #fff;
  font-weight: 800;
}
.welcomePopupDates strong,
.welcomePopupDates span {
  padding: 10px 15px;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
}
.welcomePopupDates strong { color: #ffd43b; }
.welcomePopupClose {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: #ff6b00;
  color: #fff;
  font-size: 28px;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 7px 18px rgba(0,0,0,.3);
}
@keyframes popupEntrance {
  from { opacity: 0; transform: translateY(22px) scale(.94); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@media (max-width: 560px) {
  .welcomePopup { padding: 12px; }
  .welcomePopupBox { width: 96vw; padding: 20px 12px 14px; border-radius: 20px; }
  .welcomePopupBox img { max-height: 58vh; }
  .welcomePopupDates { gap: 8px; font-size: .78rem; }
  .welcomePopupDates strong,
  .welcomePopupDates span { width: 100%; padding: 8px 10px; }
  .welcomePopupClose { top: 8px; right: 8px; width: 40px; height: 40px; }
}