.oca-activity-popup {
  position: fixed;
  bottom: 28px;
  left: 28px;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 320px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(13, 9, 23, 0.95);
  border: 1px solid rgba(113, 75, 103, 0.35);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.50);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transform: translateX(-120%);
  opacity: 0;
  transition:
    transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 0.35s ease;
}

.oca-activity-popup.ap-visible {
  transform: translateX(0);
  opacity: 1;
}

.oca-activity-popup .ap-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: #ffffff;
  background: linear-gradient(135deg, #714b67, #017e84);
  font-size: 14px;
  font-weight: 800;
}

.oca-activity-popup .ap-body {
  min-width: 0;
}

.oca-activity-popup .ap-text {
  color: rgba(242, 238, 246, 0.86);
  font-size: 12.5px;
  line-height: 1.4;
}

.oca-activity-popup .ap-text strong {
  color: #ffffff;
}

.oca-activity-popup .ap-course {
  margin-top: 2px;
  color: #c49abd;
  font-size: 11.5px;
  font-weight: 700;
}

.oca-activity-popup .ap-time {
  margin-top: 2px;
  color: rgba(242, 238, 246, 0.42);
  font-size: 11px;
}

.oca-activity-popup .ap-close {
  margin-left: 4px;
  padding: 0;
  border: 0;
  background: transparent;
  color: rgba(242, 238, 246, 0.45);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
}

@media (max-width: 720px) {
  .oca-activity-popup {
    right: 16px;
    bottom: 16px;
    left: 16px;
    max-width: none;
  }
}