static/snackbar.css

.snackbar {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 16px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 0;
  transform: translateX(400px);
  transition: all 0.3s ease;
  z-index: 9999;
  max-width: 350px;
  word-wrap: break-word;
}

.snackbar.show {
  opacity: 1;
  transform: translateX(0);
}

.snackbar-success {
  background: #10b981;
}

.snackbar-error {
  background: #ef4444;
}

.snackbar-info {
  background: #3b82f6;
}

.snackbar-warning {
  background: #f59e0b;
}

/* Stack multiple snackbars */
.snackbar:nth-child(n+2) {
  top: calc(20px + (70px * var(--index, 0)));
}

@media (max-width: 460px) {
  .snackbar {
    left: 20px;
    right: 20px;
    max-width: none;
  }
}