/* container */
@media screen and (max-width: 1440px) and (min-width: 1280px) {
  .container {
    max-width: 1200px;
  }

  .phd .owl-item {
    width: 325px !important;
  }

  .phd .owl-nav {
    bottom: -20px;
  }

  .rec_content h2 {
    font-size: 2.2rem;
  }

  .recent_carousel .owl-nav .owl-prev {
    left: -40px;
  }

  .recent_carousel .owl-nav .owl-next {
    right: -40px;
  }

  .phd .owl-carousel .owl-stage-outer {
    height: 480px;
  }
}

@media screen and (max-width: 7680px) and (min-width: 1441px) {
  .phd .owl-item {
    width: 440px !important;
  }
  .owl-stage-outer{
    height: 550px;
  }
}

@media screen and (max-width: 7680px) and (min-width: 1441px) {
  .container {
    max-width: 1320px;
  }
}

@media screen and (max-width:1600px) {
  .banner_title {
    font-size: 160px;
  }

  .banner-image img:first-child {
    left: 95px;
    max-width: 400px;
  }

  .banner-image img:last-child {
    top: -65px;
    right: 85px;
    max-width: 400px;

  }
}


/* ------------------------------ */

/* table device */
@media screen and (max-width: 1024px) and (min-width:1024px) {
  .banner {
    min-height: 75vh;
  }

  .phd .owl-carousel .owl-stage-outer {
    height: 400px;
  }
}

@media screen and (max-width: 1024px) {
  .banner_content {
    text-align: center;
  }

  @keyframes animationBg {
    from {
      background-position: -300px -200px;
      opacity: 0;
    }

    to {
      background-position: -5000px !important;
      opacity: 1;
    }
  }

  .banner_content h1 {
    background: #ffffff99;
    backdrop-filter: blur(8px);
    position: absolute;
    left: 0;
    right: 0;
  }

  .banner_content h1 {
    font-size: 3.5rem;
    line-height: 5rem;
  }

  .postdocs_img_position {
    left: -50px;
  }

  .secound_row_position {
    top: -40px;
  }

  .publication_content_one {
    margin-left: 0px;
  }

  .rec_content h2 {
    font-size: 2rem;
  }

  .teach_card h1 {
    font-size: 3rem;
    font-weight: 500;
  }

  .teach_card h2 {
    font-size: 1.5rem;
    font-weight: 700;
  }
}

@media screen and (max-width: 991px) {

  @keyframes animationBg {
    from {
      background-position: -300px -200px;
      opacity: 0;
    }

    to {
      background-position: -500px;
      opacity: 1;
    }
  }

  .banner {
    min-height: 60vh;
  }

  .secound_row_position {
    top: 80px;
  }

  .postdocs_img_position {
    left: 0;
  }

  .mobile_img_margin {
    margin-bottom: 30px;
  }

  .recent_carousel .owl-nav .owl-prev {
    left: -30px;
  }

  .recent_carousel .owl-nav .owl-next {
    right: -30px;

  }
}

 /* mediam device */
 @media screen and (max-width: 767px){
  .navbar_nav{
    display: none;
  }
  .mobile_menu{
    display: block;
  }
 }

/* mobile device */
@media screen and (max-width: 575px) {
  .professors_carousel.owl-carousel .owl-nav{
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
  }
  .professors_carousel.owl-carousel .owl-nav .owl-next,   .professors_carousel.owl-carousel .owl-nav .owl-prev{
    width:30px;
    height:30px;
    font-size: 18px !important;
    position: static;
    margin: 2px 7px;
  }
  .logo {
    font-size: 1.2rem;
  }
  .accordion-button{
    padding: 0;
  }
  .our_padding {
    padding: 15px 0;
}
.postdocs .row{
  position: relative;

}
.postdocs .personal_website_link{
  position: absolute;
  bottom: -40px;
}
.phd{
  margin: 80px 0;
}
.postdocs .postdocs_img {
  margin-top: -45px;
}
  header {
    min-height: 100vh;
  }

  @keyframes animationBg {
    from {
      background-position: -300px -200px;
      opacity: 0;
    }

    to {
      background-position: 55%;
      opacity: 1;
    }
  }

  header ul {
    column-gap: 12px;
  }

  header ul li a {
    width: 30px;
    height: 30px;
  }

  header ul a i {
    font-size: 1rem;
  }

  .banner_content h1 {
    font-size: 2.5rem;
    line-height: 4rem;
  }

  .our_people h1 {
    font-size: 3.3rem;
    margin-bottom: 30px;
  }

  .section_title h2 {
    font-size: 2.8rem;
  }

  .postdocs_content h3 {
    font-size: 1.7rem;
  }

  .postdocs_content h4 {
    font-size: 1.2rem;
    margin: 10px 0;
  }

  .publication_content h3 {
    font-size: 1.8rem;
    line-height: 40px;
  }

  .padding_left_right {
    padding: 0;
  }

  .recent_carousel .owl-nav {
    display: none !important;
  }

  .mobile_img_margin {
    margin-bottom: 30px;
  }

  .rec_content h2 {
    font-size: 1.2rem;
    margin-bottom: 15px;
  }

  .work_icon_hide {
    display: none;
  }

  .acco_primary_title {
    font-size: 2rem;
    padding-bottom: 15px;
  }

  .accordion_body_top_header {
    font-size: 1.5rem;
  }

  .accordion_body_title {
    font-size: 1.5rem;
  }

  .rec_content p {
    font-size: 1rem;
  }

  .teach_accor_image {
    margin-bottom: 20px !important;
  }

  .teach_accor_image img {
    max-height: 80px;
    margin-bottom: -20px;
  }

  .teaching .teaching .accordion-item:last-of-type>.accordion-header .accordion-button.collapsed,
  .accordion-item:first-of-type>.accordion-header .accordion-button {
    gap: 10px;
  }

  .teach_accor_header {
    margin-left: 10px;
  }

  /* .phd .owl-carousel .owl-stage-outer {
    height: 430px;
  } */

  .teach_card h1 {
    font-size: 2.2rem;
  }

  .teach_card h2 {
    font-size: 1.2rem;
  }
}