:root {
  --primary-color-: #5b5c5d;
  --second-color-: #6c6c6c;
  --third-color-: #8b8b8b;
  --bg-primary-: #f0f0f0;
}

@media screen and (max-width: 1024px) {
  /* project start */
  .project .project-content .box-project {
    width: calc(100% / 2 - 2rem);
  }
  .project .project-content .box-project .img-p {
    height: auto;
  }
  /* project end */
}

@media screen and (max-width: 768px) {
  .navbar_nav ul {
    position: fixed;
    height: 100vh;
    width: 100%;
    padding: 8%;
    backdrop-filter: blur(15px);
    top: 0;
    display: flex;
    flex-direction: column;
    right: -100%;
    background: #cccccc;
    transition: 300ms ease-in-out;
  }

  .navbar_nav ul li {
    margin: 1rem 0;
  }

  .navbar_nav ul .none_list::after {
    display: none;
  }

  .navbar_nav ul #times {
    display: inline-block;
    font-size: 1.4rem;
    text-shadow: 2.5px 2.5px var(--third-color-);
  }

  .navbar_nav .navbar-extra {
    display: inline-block;
    color: #000;
  }

  .navbar_nav .navbar-extra i {
    font-size: 1.35rem;
    text-shadow: 2.5px 2.5px var(--third-color-);
  }

  /* responsive section about start */
  .about .about-content {
    display: flex;
    flex-wrap: wrap;
    flex-direction: column-reverse;
  }

  .about .about-content .image {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 1rem;
  }

  .about .about-content .image img {
    width: 70%;
  }
  /* responsive section about end */

  /* education-tab */
  .about-me #Education .education-content .box-education {
    width: calc(100% / 2 - 1.5rem);
  }

  /* skills-tab */
  .about-me #Skills .skills-content .box-skills {
    width: calc(100% / 2 - 1.5rem);
  }

  /* footer start */
  footer {
    padding: 1.6rem 8%;
  }
  footer .line-horizontal-f {
    display: none;
  }
  /* footer end */
}

@media screen and (max-width: 650px) {
  /* responsive section about start */
  .about .about-content .image {
    display: block;
    margin: 0;
  }
}

@media screen and (max-width: 576px) {
  /* about */
  .about .about-content .image img {
    width: 100%;
  }

  /* education-tab */
  .about-me #Education .education-content .box-education {
    width: 100%;
  }

  /* skills-tab */
  .about-me #Skills .skills-content .box-skills {
    width: 100%;
  }

  /* project */
  .project .project-content .box-project {
    width: 100%;
  }

  .project .project-content .box-project .img-p {
    height: 170px;
  }
}