@media screen and (max-width: 479px) {
  .responsive-br {
    display: none;
  }
  .clients__summary {
    display: none;
  }
}

@media screen and (min-width: 480px) {
  .main .cont-width {
    padding-top: 70px;
  }
  .main__headline {
    font-size: 4.4rem;
  }
  /* @keyframes breathe {
    0% {
      font-variation-settings: 'wght' 400;
      font-size: 4rem;
    }
    60% {
      font-variation-settings: 'wght' 900;
      font-size: 4.5rem;
    }

    100% {
      font-variation-settings: 'wght' 400;
      font-size: 4rem;
    }
  } */

  .main__img {
    width: 260px;
  }

  .step__item--name {
    font-size: 1.4rem;
  }

  .product-diagram__images {
    grid-template-columns: minmax(auto, 80px) minmax(auto, 32px) 280px minmax(auto, 32px) minmax(auto, 80px);
  }

  .product-block--secondary .product-description {
    text-align: right;
  }
  .business-service {
    display: flex;
    padding: 16px 20px;
    justify-content: space-around;
  }
  .business-service__item img {
    width: 120px;
    max-width: unset;
  }
  .business-service__item span {
    width: 120px;
    max-width: unset;
    font-size: 1.2rem;
  }
  .clients > p {
    width: 60%;
  }
  /* organization */
  .organization__logo {
    width: 120px;
    height: 120px;
  }
  .organization__list li {
    font-size: 1.4rem;
  }
  .organization__list:nth-child(2n) {
    margin-left: 0;
    margin-right: 0;
  }

  /* footer */
  .footer__info {
    font-size: 1.4rem;
  }
  .footer__info-row--owner {
    font-size: 1.2rem;
  }
  .footer__info span {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .footer__info span::before {
    content: '';
    width: 3px;
    height: 3px;
    background-color: var(--gray-700);
  }
  .footer__info span:first-child::before {
    display: none;
  }
}

@media screen and (min-width: 768px) {
  .cont-width {
    padding-left: var(--padding-tablet);
    padding-right: var(--padding-tablet);
    gap: 40px;
  }
  .section {
    padding: var(--pd-top-bottom-tablet) 0;
  }

  /* header */
  #header {
    height: var(--head-height);
  }
  #header .header__logo {
    width: 85px;
  }
  .header__inner {
    padding: 0 var(--padding-tablet);
  }
  #header .logo {
    width: 64px;
  }
  .nav__toggle {
    padding: 18px;
  }

  /* main */
  .main {
    height: 670px;
  }
  .main .cont-width {
    padding-top: 80px;
  }
  .main__headline {
    color: var(--gray-900);
    font-size: 6rem;
  }

  /* @keyframes breathe {
    0% {
      font-variation-settings: 'wght' 400;
      font-size: 6rem;
    }
    60% {
      font-variation-settings: 'wght' 900;
      font-size: 6.8rem;
    }

    100% {
      font-variation-settings: 'wght' 400;
      font-size: 6rem;
    }
  } */

  .main__description {
    font-size: 1.8rem;
    width: unset;
  }
  .main__description p:nth-child(2) {
    width: 80%;
  }
  .main__img {
    width: 350px;
    right: 0;
    bottom: -60px;
  }

  /* about */
  #about .cont-width {
    gap: 60px;
  }
  .about__section {
    gap: 30px;
  }
  .about__section-decor {
    width: 50px;
  }
  .about__section-decor img {
    width: 100%;
  }
  .about__section-subtitle {
    font-size: 2.6rem;
  }
  .about__section-title {
    font-size: 5rem;
  }
  .about__section-description {
    font-size: 2rem;
  }
  .about__signature span {
    font-size: 2rem;
  }
  .about__signature img {
    width: 120px;
  }

  /* product */
  .section-header {
    gap: 16px;
  }
  .section-header h3 {
    font-size: 5rem;
  }
  .section-header p {
    font-size: 1.6rem;
  }
  .product-description__highlight {
    font-size: 2rem;
  }
  .step {
    gap: 0;
  }
  .step__item img {
    width: 70px;
  }
  .step__item::after {
    content: '';
    position: absolute;
    top: calc(50% - 10px);
    right: -10px;
    width: 20px;
    height: 20px;
    background: url(/images/ico-arrow-right.svg) no-repeat;
    background-size: cover;
  }
  .product-diagram__caption {
    font-size: 1.6rem;
  }
  .product-diagram__images {
    grid-template-columns: minmax(auto, 80px) minmax(auto, 50px) 320px minmax(auto, 50px) minmax(auto, 80px);
    gap: 30px;
    transition: all 0.3s;
  }
  .product-block--secondary {
    margin-top: 40px;
    padding-top: 40px;
    padding-bottom: 60px;
  }
  .business-system {
    grid-template-columns: repeat(4, 1fr);
  }
  .business-partner {
    flex-shrink: 0;
  }
  .business-partner span {
    font-size: 2.4rem;
  }
  .business-service {
    justify-content: center;
    gap: 70px;
    border-radius: var(--br-fill);
  }
  .business-service__item span {
    font-size: 1.4rem;
  }

  /* services */
  .services__content {
    flex-direction: row;
    align-items: stretch;
    gap: 0;
  }
  .services__block--si,
  .services__block--sm {
    flex: 1;
    gap: 40px;
  }
  .services__block-header {
    padding: 20px;
    width: calc(100% + 10px);
    border-radius: var(--br-fill);
  }
  .services__block-header--si {
    margin-left: 0;
    margin-right: -10px;
  }
  .services__block-header--sm {
    margin-left: -10px;
    mix-blend-mode: multiply;
  }
  .services__block-title {
    width: 100px;
    height: 100px;
    flex-direction: column;
  }
  .services__block-title span {
    display: flex;
    font-size: 1.1rem;
    text-align: center;
    color: var(--gray-700);
    font-variation-settings: 'wght' 400;
  }
  .services__block-body {
    flex-grow: 1;
  }
  .services__block--si .services__block-body {
    border-right: 1px dashed var(--gray-400);
    padding-right: 4vw;
  }
  .services__block--sm .services__block-body {
    padding-left: 4vw;
  }
  .services__block-section {
    gap: 16px;
  }
  .services__block-map img {
    width: 70%;
    max-width: 265px;
  }

  /* clients */
  .clients__content {
    grid-template-columns: repeat(3, 1fr);
  }
  .clients__summary {
    gap: 60px;
  }
  .clients__summary-block:nth-child(1)::after {
    right: -30px;
  }
  .clients__summary-block dt {
    font-size: 1.4rem;
    margin-bottom: 15px;
  }
  .clients__summary-block dd {
    font-size: 3rem;
  }

  /* history */
  .history__content {
    gap: 50px;
  }
  .history__year {
    font-size: 5rem;
  }
  .history__list li {
    font-size: 1.6rem;
  }

  /* organization */
  .organization__logo {
    width: 140px;
    height: 140px;
  }
  .organization__list li {
    font-size: 1.6rem;
  }
  .organization__list {
    padding: 0 10px;
  }

  /* footer */
  .footer {
    padding: var(--pd-top-bottom-tablet) 0;
  }
  .footer__logo {
    width: 80px;
  }
}

@media screen and (min-width: 1024px) {
  .section {
    padding: var(--pd-top-bottom-tablet1024) 0;
  }
  .cont-width {
    gap: 60px;
  }
  /* header */
  .header__inner {
    padding: 0 var(--padding-tablet);
  }
  .nav {
    padding: 0 30px;
    top: unset;
    left: unset;
    right: -150%;
    border-radius: var(--br-fill);
    transition: all 500ms;
  }
  .nav__open {
    height: 60px;
    right: calc(var(--padding-tablet) + 72px);
  }
  .nav__menu {
    height: 100%;
    flex-direction: row;
  }

  /* main */
  .main {
    height: 930px;
  }
  .main .cont-width {
    padding-top: 130px;
  }
  .main__headline {
    font-size: 9rem;
  }

  /* @keyframes breathe {
    0% {
      font-variation-settings: 'wght' 400;
      font-size: 9rem;
    }
    60% {
      font-variation-settings: 'wght' 900;
      font-size: 10rem;
    }

    100% {
      font-variation-settings: 'wght' 400;
      font-size: 9rem;
    }
  } */

  .main__description {
    font-size: 2rem;
  }
  .main__description p:nth-child(2) {
    width: 65%;
  }
  .main__img {
    width: 500px;
    right: var(--padding-tablet);
    bottom: -60px;
  }

  /* about */
  .about__section-subtitle {
    font-size: 3rem;
  }
  .about__section-title {
    font-size: 7rem;
  }
  .about__section-decor {
    width: 60px;
  }
  .about__section-description {
    line-height: 160%;
  }
  .about__signature img {
    width: 140px;
  }
  /*product*/
  .section-header h3 {
    font-size: 6rem;
  }
  .section-header p {
    font-size: 1.8rem;
  }
  .product-block__top {
    display: flex;
    gap: 20px;
    transition: all 0.3s;
  }
  .product-description {
    flex: 1;
    gap: 26px;
  }
  .step {
    flex: 1;
  }
  .step__item img {
    width: 50px;
  }
  .step__item--name {
    font-size: 1.6rem;
  }
  .product-diagram__images {
    grid-template-columns: minmax(auto, 110px) minmax(auto, 80px) 400px minmax(auto, 80px) minmax(auto, 110px);
    gap: 40px;
  }
  .product-block--secondary {
    margin-top: 60px;
    padding-top: 60px;
    padding-bottom: 100px;
  }
  .business {
    flex-direction: row;
    justify-content: space-evenly;
    gap: 70px;
  }
  .business-system {
    max-width: 500px;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .business-system__item span {
    font-size: 1.4rem;
    padding: 20px 15px;
  }
  .business-service {
    width: fit-content;
    flex-direction: column;
    padding: 60px 40px;
    gap: 70px;
  }
  .business-service__item img {
    width: 150px;
  }
  .business-service__item span {
    width: 150px;
    font-size: 1.8rem;
  }

  /* service */
  .services__block-title {
    width: 140px;
    height: 140px;
    font-size: 5rem;
  }
  .services__block-title span {
    font-size: 1.4rem;
  }
  .services__block-description {
    font-size: 1.6rem;
  }
  .services__block--si,
  .services__block--sm {
    gap: 60px;
  }
  .services__block-body {
    gap: 40px;
  }

  /* clients */
  .clients__summary-block dt {
    font-size: 1.6rem;
  }
  .clients__summary-block dd {
    font-size: 4rem;
  }
  /* history */
  .history__content {
    padding-top: 50px;
    padding-bottom: 50px;
    gap: 50px;
  }
  .history__content::before {
    left: 50%;
  }
  .history__block {
    width: 50%;
  }
  .history__block:nth-child(2n-1) {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    width: calc(50% + 7px);
  }
  .history__block:nth-child(2n-1) .history__year {
    flex-direction: row-reverse;
  }
  .history__block:nth-child(2n-1) .history__list {
    margin-left: 0;
    margin-right: 30px;
  }
  .history__block:nth-child(2n-1) .history__list li {
    flex-direction: row-reverse;
  }

  .history__block:nth-child(2n) {
    margin-left: calc(50% - 7px);
  }
  .history__list {
    gap: 20px;
  }
  .history__list li {
    font-size: 1.8rem;
  }

  /* organization */
  .organization__content {
    gap: 60px;
  }
  .organization__logo::after {
    height: 60px;
    bottom: -60px;
  }
  .organization__logo {
    width: 160px;
    height: 160px;
  }
  .organization__list li {
    font-size: 2rem;
  }
  .organization__list::before {
    height: 80px;
  }
  .organization__list:nth-child(2n)::before {
    height: 80px;
  }

  /* footer */
  .footer__logo {
    width: 90px;
  }
  .footer__info {
    font-size: 1.6rem;
    gap: 12px;
  }
  .footer__info-row--owner {
    font-size: 1.4rem;
  }
}

@media screen and (min-width: 1440px) {
  .section {
    padding: var(--pd-top-bottom-web) 0;
  }
  .cont-width {
    padding-left: var(--padding-web);
    padding-right: var(--padding-web);
    gap: 80px;
  }
  /* header */
  .header__inner {
    padding: 0 var(--padding-web);
  }
  .nav__open {
    right: calc(var(--padding-web) + 72px);
  }

  /* main */
  .main__description p:nth-child(2) {
    width: 53%;
  }
  .main__img {
    width: 700px;
    bottom: -80px;
  }

  /* about */
  #about .cont-width {
    gap: 90px;
  }
  .about__section-description {
    width: 75%;
  }

  /* product */
  .step__item img {
    width: 70px;
  }

  .product-diagram {
    margin-top: 100px;
    gap: 50px;
  }
  .product-diagram__images {
    grid-template-columns: minmax(auto, 120px) minmax(auto, 140px) 400px minmax(auto, 140px) minmax(auto, 140px);
    gap: 40px;
  }
  .product-block--secondary {
    margin-top: 80px;
    padding-top: 80px;
    padding-bottom: 120px;
  }
  .business-system {
    max-width: 650px;
    grid-template-columns: repeat(3, 1fr);
  }
  .business-partner span {
    font-size: 3rem;
  }
  .product-description__highlight + p {
    font-size: 16px;
  }

  /* service */
  .services__block-header {
    gap: 40px;
  }
  .services__block-title {
    width: 150px;
    height: 150px;
  }
  .services__block-description {
    display: inline-block;
    font-size: 1.8rem;
    width: 60%;
  }
  .services__block-body {
    gap: 50px;
    padding-left: 4vw;
    padding-right: 4vw;
  }
  /* history */
  .history__list li {
    font-size: 2rem;
  }

  /*   organization */
  .organization__list {
    padding: 0 20px;
    gap: 16px;
  }
  .organization__list__team {
    margin-bottom: 20px;
  }

  /* footer */
}