.subscribe-success {
    display: none;
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: #fff;
    padding: 16px 22px;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
    z-index: 9999;
    animation: slideDown 0.5s ease;
    max-width: 420px;
    width: calc(100% - 40px);
  }

  .success-content {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .success-icon {
    font-size: 1.6rem;
  }

  .subscribe-success p {
    margin: 4px 0 0;
    font-size: 0.9rem;
    opacity: 0.95;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translate(-50%, -20px);
    }
    to {
      opacity: 1;
      transform: translate(-50%, 0);
    }
  }