/* Tablet View (≤ 1024px) */
@media (max-width: 1024px) {
  .left_container {
    width: 60%;
    padding-left: 2rem;
  }

  .right_container {
    width: 40%;
  }

  .content h1 {
    font-size: 2rem;
  }

  .content h2 {
    font-size: 1.3rem;
  }

  .detail {
    font-size: 1rem;
  }

  .circle:nth-child(1),
  .circle:nth-child(2) {
    width: 20rem;
  }
}

/* Mobile View (≤ 768px) */
@media (max-width: 768px) {
  .portfolio_container {
    flex-direction: column;
    height: auto;
  }

  .left_container,
  .right_container {
    width: 100%;
    height: auto;
    padding: 2rem 1rem;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .content {
    margin-left: 0;
  }

  .nav_list {
    flex-direction: column;
    gap: 1rem;
    height: auto;
    padding: 1rem;
    background-color: rgba(0, 0, 0, 0.8);
    position: static;
  }

  .nav_list li a {
    font-size: 0.9rem;
  }

  .icons {
    position: static;
    flex-direction: row;
    justify-content: center;
    margin-top: 1rem;
  }

  .circle:nth-child(1),
  .circle:nth-child(2) {
    position: static;
    transform: none;
    margin: 2rem auto;
    width: 15rem;
  }

  .btn {
    font-size: 0.9rem;
    padding: 0.4rem 1rem;
  }
}

/* Small Mobile View (≤ 480px) */
@media (max-width: 480px) {
  .content h1 {
    font-size: 1.6rem;
  }

  .content h2 {
    font-size: 1.1rem;
  }

  .detail {
    font-size: 0.9rem;
  }

  .btn {
    font-size: 0.8rem;
    padding: 0.3rem 0.8rem;
    margin: 0.3rem;
  }

  .circle:nth-child(2) {
    width: 12rem;
  }
}