.join-cta {
    text-align: center;
    background: linear-gradient(135deg, #e8f3ec 0%, #f4faf6 100%);
    border: 1px solid var(--primary-light);
    border-radius: 16px;
    padding: 28px 24px;
    margin: 36px 0;
  }
  .join-cta__text {
    font-size: 15px;
    color: var(--text-dark);
    line-height: 1.8;
    margin: 0 0 18px;
  }
  .join-cta__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    font-size: clamp(16px, 2vw, 18px);
    padding: 16px 40px;
    border-radius: 50px;
    box-shadow: 0 6px 18px rgba(26, 107, 60, .28);
    transition: background-color .25s ease, transform .25s ease, box-shadow .25s ease;
  }
  .join-cta__btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(26, 107, 60, .36);
  }