.join-section {
  width: 100%;
  margin: 3em auto;
  text-align: center;
}

.join-box {
  width: 60%;
  max-width: 800px;
  margin: 2em auto;
  background: rgba(255, 255, 255, 0.5);
  padding: 2em;
  border-radius: 50px;
  border: 2px solid #0d4d66;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  z-index: 2;
}

.join-title {
  text-align: center;
  font-size: 2.5em;
  margin-top: 0;
  margin-bottom: 1em;
  color: #0d4d66;
  font-weight: 700;
}

.join-subtitle {
  text-align: center;
  font-size: 2em;
  margin-top: 0;
  margin-bottom: 1em;
  color: #0d4d66;
  font-weight: 700;
}

.join-description {
  text-align: center;
  font-size: 1.2em;
  line-height: 1.6;
  color: #0d4d66;
  margin: 0;
  width: 100%;
}

/* Mobile responsive design */
@media (max-width: 620px) {
  .join-box {
    width: 85%;
    padding: 1.5em;
  }

  .join-title {
    font-size: 2em;
  }

  .join-subtitle {
    font-size: 1.5em;
  }

  .join-description {
    font-size: 1em;
  }
}