.bottom-ad {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1050;
  background-color: var(--secondary-color, #c0392b);
  color: #fff;
  padding: 1rem 2rem;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.15);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1rem;
  animation: slideUp 0.5s ease-out;
}

.bottom-ad-content {
  max-width: 1200px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.bottom-ad .btn-close {
  background-color: rgba(255,255,255,0.2);
  border: none;
  padding: 0.25rem 0.6rem;
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
}

.bottom-ad a.btn {
  background-color: #fff;
  color: #000;
  font-weight: bold;
  transition: all 0.2s ease-in-out;
}

.bottom-ad a.btn:hover {
  background-color: #f1f1f1;
  text-decoration: none;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}