@media (max-width: 1100px) {
  .header-content {
    flex-wrap: wrap;
    justify-content: center;
  }

  .sub-header-nav-wrap {
    justify-content: center;
    flex-wrap: wrap;
  }
x
  .tools-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-title {
    font-size: 48px;
  }

  .about-intro-name {
    font-size: 48px;
  }

  .about-intro-role {
    font-size: 24px;
  }

  .about-intro-text {
    font-size: 18px;
  }

  .projects-main-title {
    font-size: 48px;
  }
}

@media (max-width: 900px) {
  .navbar {
    flex-wrap: wrap;
    justify-content: center;
    border-radius: 24px;
  }

  .tools-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .training-grid {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 32px;
  }

  .hero-role {
    font-size: 22px;
  }

  .hero-description {
    font-size: 16px;
  }

  .about-intro-card {
    min-height: 280px;
    margin-bottom: 50px;
  }

  .about-intro-name {
    font-size: 40px;
  }

  .projects-main-title {
    font-size: 40px;
  }

  .projects-main-subtitle {
    font-size: 17px;
  }
}

@media (max-width: 700px) {
  .brand-name {
    font-size: 17px;
  }

  .nav-link {
    padding: 10px 16px;
    font-size: 14px;
  }

  .hero-image-wrapper {
    width: 160px;
    height: 160px;
  }

  .hero-title {
    font-size: 38px;
  }

  .hero-role {
    font-size: 21px;
  }

  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-page {
    padding: 30px 0 60px;
  }

  .about-intro-card {
    padding: 30px 20px;
    gap: 20px;
    border-radius: 24px;
  }

  .about-intro-name {
    font-size: 34px;
  }

  .about-intro-role {
    font-size: 20px;
  }

  .about-intro-text {
    font-size: 16px;
    line-height: 1.8;
  }

  .training-card {
    padding: 24px 20px;
  }

  .training-card h3 {
    font-size: 17px;
  }

  .training-card h4,
  .training-date,
  .training-list li {
    font-size: 15px;
  }

  .projects-page {
    padding: 30px 0 60px;
  }

  .projects-main-title {
    font-size: 34px;
  }

  .projects-main-subtitle {
    font-size: 16px;
    line-height: 1.8;
  }

  .project-cover {
    height: 190px;
  }

  .project-content {
    padding: 24px 20px 28px;
  }

  .project-title {
    font-size: 20px;
  }

  .project-description {
    font-size: 15px;
  }

  .project-tag {
    font-size: 14px;
    padding: 10px 16px;
  }

  .project-btn {
    min-width: 160px;
    padding: 16px 22px;
    font-size: 15px;
  }
}