@media only screen and (min-width: 767px) {
  .navbar-brand img {
    height: 60px;
  }
  .navbar .nav-link {
    font-size: 18px;
  }
  .banner-title-container h1 {
    font-size: 60px;
  }
  .banner-title-container h4 {
    font-size: 36px;
  }
  .products-container {
    flex-wrap: nowrap;
  }
  .single-product:not(:last-of-type) {
    margin-bottom: 0;
    margin-right: 15px;
  }
  .single-product {
    flex-direction: column;
    padding: 30px;
  }
  .single-product .icon {
    margin-right: 0;
    margin-bottom: 20px;
  }
  .single-product .icon img {
    width: 48px;
    height: 48px;
    object-fit: fill;
  }
  .product-title {
    font-size: 16px;
  }
  .banner-container {
    padding-top: 380px;
  }
  .sec-title h5 {
    font-size: 18px;
  }
  .sec-title h2 {
    font-size: 42px;
  }
  .abt-spacing {
    padding: 80px 0 50px 0;
  }
  .mfg-sec > div {
    margin-bottom: 24px;
  }
  .mfg-sec .single-product {
    height: 100%;
    margin-bottom: 0;
    justify-content: space-around;
  }
  .sec-title p {
    font-size: 16.5px;
  }
  .single-certi img {
    width: 120px;
  }
  .certi-title h6 {
    font-size: 18px;
  }
  .certi-spacing {
    padding: 0px 0 50px 0;
  }
  footer {
    padding: 40px 0 25px 0;
  }
  .ft-title h6 {
    font-size: 26px;
  }
  .ft-link {
    margin-bottom: 0;
  }
  .ft-link a {
    font-size: 18px;
  }
  .grades-sec {
    margin-top: 24px;
    padding: 25px 22px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .grades-sec h3 {
    font-size: 22px;
    margin-bottom: 0;
    margin-right: 30px;
  }
  .grades-sec ul {
    columns: unset;
    line-height: 1;
    position: relative;
    top: 1px;
  }
  .grades-sec ul li {
    display: inline-block;
    padding-right: 15px;
    line-height: 1;
    font-size: 20px;
  }
  .certi-title h4 {
    font-size: 42px;
    margin-bottom: 20px;
  }
  .single-certi-img {
    width: calc(100% / 4);
    margin-bottom: 20px;
  }
  .single-certi-img img {
    width: 80%;
  }
}

@media only screen and (min-width: 992px) {
  .navbar-brand img {
    height: 80px;
  }
  .navbar .nav-link {
    font-size: 22px;
  }
  .banner-container {
    padding-top: 480px;
    padding-bottom: 80px;
  }
  .banner-title-container h1 {
    font-size: 72px;
    margin-bottom: 15px;
  }
  .banner-title-container h4 {
    font-size: 42px;
  }
  .products-container {
    margin-top: 50px;
  }
  .single-product {
    padding: 40px 0 30px 0;
  }
  .single-product .icon {
    margin-bottom: 30px;
  }
  .single-product .icon img {
    width: 70px;
    height: 70px;
  }
  .product-title {
    font-size: 22px;
  }
  .sec-title {
    margin-bottom: 45px;
  }
  .sec-title h5 {
    font-size: 24px;
    margin-bottom: 8px;
  }
  .sec-title p {
    font-size: 17px;
    max-width: 70%;
    margin: auto;
  }
  .mfg-sec .single-product {
    padding: 50px 0;
  }
  .sec-title h2 {
    font-size: 56px;
    margin-bottom: 15px;
  }
  .mfg-sec .single-product {
    padding: 40px 0;
  }
  .mfg-sec .single-product .icon img {
    height: 52px;
  }
  .mfg-sec .product-title {
    font-size: 28px;
  }
  .certificate-container {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 35px;
  }
  .certi-img {
    margin-right: 25px;
  }
  .single-certi img {
    width: 110px;
  }
  .certi-title h6 {
    margin-top: 0;
    font-size: 24px;
    max-width: 90%;
    text-align: left;
    line-height: 1.3;
  }
  footer {
    padding: 50px 0 30px 0;
  }
  .ft-title h6 {
    font-size: 32px;
  }
  .ft-link a {
    font-size: 22px;
  }
  .grades-sec {
    padding: 25px 30px;
  }
  .grades-sec h3 {
    font-size: 26px;
    margin-right: 35px;
  }
  .grades-sec ul li {
    padding-right: 22px;
    font-size: 22px;
  }
}

@media only screen and (min-width: 1200px) {
  .banner-container {
    padding-top: 140px;
  }
  .navbar-brand img {
    height: 64px;
  }
  .navbar .nav-link {
    font-size: 18px;
  }
  .products-container {
    max-width: 70%;
  }
  .single-product:not(:last-of-type) {
    margin-right: 25px;
  }
  .product-title {
    font-size: 18px;
  }
  .mfg-sec .product-title {
    font-size: 22px;
  }
  .abt-spacing {
    padding: 100px 0 50px 0;
  }
  .sec-title h5 {
    font-size: 26px;
    margin-bottom: 10px;
  }
  .sec-title h2 {
    font-size: 64px;
  }
  .sec-title p {
    font-size: 18px;
    max-width: 64%;
  }
  .sec-title {
    margin-bottom: 60px;
  }
  .single-certi img {
    width: 140px;
  }
  .certi-title h6 {
    max-width: 70%;
  }
  .banner-title-container h1 {
    font-size: 64px;
  }
  .grades-sec h3 {
    margin-right: 40px;
  }
  .grades-sec ul li {
    padding-right: 30px;
  }
  .certi-area {
    margin-top: 40px;
    margin-bottom: 50px;
  }
  .single-certi-img {
    width: calc(100% / 6);
    margin-bottom: 35px;
  }
  .single-certi-img img {
    width: 74%;
  }
}

@media only screen and (min-width: 1600px) {
  .banner-title-container h1 {
    font-size: 72px;
  }
  .abt-spacing {
    padding: 100px 0 60px 0;
  }
  .certi-spacing {
    padding: 0px 0 60px 0;
  }
  .banner-container {
    padding-top: 260px;
  }
}