html {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

*,
*::before,
*::after {
  -webkit-box-sizing: inherit;
          box-sizing: inherit;
}

:root {
  --color-dark: #091c53;
  --color-text: #1e3063;
  --color-btn-link: #0540ad;
  --color-border: #bbd9f5;
  --color-main: #84c1fa;
  --color-gray: #f3f4f6;
  --color-main-50: rgba(132, 193, 250, .5);
  --color-gray-50: rgba(243, 244, 246, .5);
}

::-moz-selection {
  background-color: var(--color-main-50);
}

::selection {
  background-color: var(--color-main-50);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

body {
  min-width: 320px;
  font-family: 'BookAntiqua', serif;
  font-weight: 400;
  font-size: 18px;
  color: var(--color-text);
  background-color: var(--color-gray);
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}

.list-reset {
  margin: 0;
  padding: 0;
  list-style: none;
}

.btn-reset {
  padding: 0;
  line-height: 1;
  color: inherit;
  background-color: transparent;
  border: none;
  cursor: pointer;
}

.container {
  margin: 0 auto;
  padding: 0 50px;
  max-width: 1700px;
}

.heading {
  margin: 0;
  font-weight: 600;
  font-size: 28px;
  line-height: 32px;
  color: var(--color-dark);
  text-align: center;
}

.title {
  margin: 0;
  margin-bottom: 15px;
  font-weight: 600;
  font-size: 20px;
  line-height: 32px;
  color: var(--color-dark);
}

.text {
  margin: 0;
  font-size: 16px;
  line-height: 24px;
}

.focus-state::before {
  content: '';
  position: absolute;
  left: -6px;
  right: -6px;
  top: -3px;
  bottom: -3px;
  background-color: var(--color-main);
  opacity: 0;
  z-index: -1;
  -webkit-transition: opacity .2s ease-out;
  transition: opacity .2s ease-out;
}

.header__burger {
  position: relative;
  display: none;
  width: 36px;
  height: 28px;
  z-index: 100;
  -webkit-transition: opacity .2s ease-out, -webkit-transform .2s ease-out;
  transition: opacity .2s ease-out, -webkit-transform .2s ease-out;
  transition: transform .2s ease-out, opacity .2s ease-out;
  transition: transform .2s ease-out, opacity .2s ease-out, -webkit-transform .2s ease-out;
}

.header__burger-line,
.header__burger::before,
.header__burger::after {
  position: absolute;
  left: 0;
  height: 4px;
  background-color: var(--color-text);
  -webkit-transition: background-color .2s ease-out;
  transition: background-color .2s ease-out;
}

.header__burger-line {
  top: 50%;
  width: 28px;
  pointer-events: none;
  -webkit-transform: translateY(-50%);
      -ms-transform: translateY(-50%);
          transform: translateY(-50%);
}

.header__burger::before {
  content: '';
  top: 0;
  width: 100%;
}

.header__burger::after {
  content: '';
  bottom: 0;
  width: 24px;
}

.header__cross {
  position: relative;
  display: none;
  -ms-flex-negative: 0;
      flex-shrink: 0;
  margin-bottom: 30px;
  width: 37px;
  height: 37px;
  -webkit-transition: -webkit-transform .2s ease-out;
  transition: -webkit-transform .2s ease-out;
  transition: transform .2s ease-out;
  transition: transform .2s ease-out, -webkit-transform .2s ease-out;
}

.header__cross::before,
.header__cross::after {
  content: '';
  position: absolute;
  right: 3px;
  top: 20px;
  width: 100%;
  height: 4px;
  background-color: var(--color-text);
  -webkit-transition: background-color .2s ease-out;
  transition: background-color .2s ease-out;
}

.header__cross::before {
  -webkit-transform: rotate(45deg);
      -ms-transform: rotate(45deg);
          transform: rotate(45deg);
}

.header__cross::after {
  -webkit-transform: rotate(-45deg);
      -ms-transform: rotate(-45deg);
          transform: rotate(-45deg);
}

.header__container {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: distribute;
      justify-content: space-around;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

.header__logo {
  display: inline-block;
  height: 100%;
}

.header__logo img {
  max-width: 90px;
}

.header__nav {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

.header__nav-list {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

.header__nav-item {
  position: relative;
  padding: 30px 0;
}

.header__nav-item:not(:last-child) {
  margin-right: 36px;
}

.header__nav-link {
  position: relative;
  font-weight: 700;
  font-size: 20px;
  line-height: 22px;
  color: var(--color-dark);
  -webkit-text-decoration: underline transparent;
          text-decoration: underline transparent;
  text-underline-offset: 6px;
  -webkit-transition: color .2s ease-out, -webkit-text-decoration .2s ease-out;
  transition: color .2s ease-out, -webkit-text-decoration .2s ease-out;
  transition: color .2s ease-out, text-decoration .2s ease-out;
  transition: color .2s ease-out, text-decoration .2s ease-out, -webkit-text-decoration .2s ease-out;
}

.header__dropdown-btn {
  padding-right: 15px;
}

.header__dropdown-btn::after {
  content: '';
  position: absolute;
  right: 0;
  top: calc(50% - 5px);
  width: 8px;
  height: 8px;
  border-right: 2px solid;
  border-top: 2px solid;
  -webkit-transform: rotate(135deg);
      -ms-transform: rotate(135deg);
          transform: rotate(135deg);
  -webkit-transition: top .2s ease-out, -webkit-transform .2s ease-out;
  transition: top .2s ease-out, -webkit-transform .2s ease-out;
  transition: transform .2s ease-out, top .2s ease-out;
  transition: transform .2s ease-out, top .2s ease-out, -webkit-transform .2s ease-out;
}

.header__dropdown-btn--is-active::after {
  top: 50%;
  -webkit-transform: rotate(135deg) scale(-1);
      -ms-transform: rotate(135deg) scale(-1);
          transform: rotate(135deg) scale(-1);
}

.dropdown__link {
  font-size: 18px;
  line-height: 32px;
}

.dropdown__link::before {
  top: 0;
}

.header__dropdown {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  visibility: hidden;
  opacity: 0;
  z-index: 1;
  -webkit-transition: visibility .2s ease-out, opacity .2s ease-out;
  transition: visibility .2s ease-out, opacity .2s ease-out;
}

.header__dropdown--is-active {
  visibility: visible;
  opacity: 1;
}

.dropdown {
  padding: 18px;
  background-color: var(--color-gray);
  border: 5px solid var(--color-border);
  border-top: unset;
  border-radius: 0 0 10px 10px;
}

.main {
  padding-top: 80px;
  padding-bottom: 80px;
  background-image: url(../img/main-bg.jpg);
  background-position: center;
  background-size: cover;
  border-top: 5px solid var(--color-border);
}

.main__content {
  max-width: 700px;
}

.main__logo {
  display: inline-block;
  margin-bottom: 70px;
}

.main__logo img {
  -webkit-filter: drop-shadow(0px 2px 4px rgba(0, 0, 0, .5));
          filter: drop-shadow(0px 2px 4px rgba(0, 0, 0, .5));
}

.main__link {
  display: inline-block;
  margin: 0 auto;
  padding: 20px 32px;
  font-weight: 600;
  font-size: 18px;
  line-height: 24px;
  color: var(--color-gray);
  background-color: var(--color-btn-link);
  border: 3px solid var(--color-border);
  border-radius: 100px;
  pointer-events: auto;
  -webkit-transition: color .2s ease-out, background-color .2s ease-out, border-color .2s ease-out;
  transition: color .2s ease-out, background-color .2s ease-out, border-color .2s ease-out;
}

.catalog {
  padding: 70px 0;
  border-top: 5px solid var(--color-border);
}

.catalog__heading {
  margin-bottom: 30px;
}

.about {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}

.about__card {
  width: calc(40% - 100px);
}

.about__item {
  padding: 10px 15px;
  border: 2px solid var(--color-main);
  border-left: 12px solid var(--color-main);
  border-radius: 5px 20px 20px 5px;
}

.about__item:not(:last-child) {
  margin-bottom: 20px;
}

.about__content {
  width: 60%;
}

.about__text {
  padding-top: 20px;
  font-size: 18px;
  line-height: 32px;
  text-indent: 30px;
}

.catalog__list {
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: 1fr 20px 1fr 20px 1fr 20px 1fr;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.catalog__link {
  position: relative;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

.catalog__link img {
  width: 100%;
  height: 100%;
  border-radius: 5px;
  -o-object-fit: cover;
     object-fit: cover;
}

.catalog__link::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  border: 3px solid var(--color-main-50);
  border-radius: 5px;
  -webkit-transition: background-color .2s ease-out, border-color .2s ease-out;
  transition: background-color .2s ease-out, border-color .2s ease-out;
}

.catalog__link::after {
  content: '';
  position: absolute;
  left: 50px;
  right: 50px;
  top: 50px;
  bottom: 50px;
  background-color: var(--color-main-50);
  background-image: url('../img/loupe.svg');
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0;
  -webkit-transition: opacity .2s ease-out;
  transition: opacity .2s ease-out;
}

.contacts {
  padding-top: 60px;
  border-top: 5px solid var(--color-border);
}

.contacts__container {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: distribute;
      justify-content: space-around;
  padding-bottom: 30px;
}

.contacts__list {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

.contacts__item {
position: relative;
}

.contacts__item:not(:last-child) {
  margin-right: 30px;
}

.contacts__link {
  font-size: 22px;
  line-height: 1;
  -webkit-text-decoration: underline transparent;
          text-decoration: underline transparent;
  text-underline-offset: 6px;
  -webkit-transition: color .2s ease-out, -webkit-text-decoration .2s ease-out;
  transition: color .2s ease-out, -webkit-text-decoration .2s ease-out;
  transition: color .2s ease-out, text-decoration .2s ease-out;
  transition: color .2s ease-out, text-decoration .2s ease-out, -webkit-text-decoration .2s ease-out;
}

.contacts__link-wrap {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

.contacts__link-text {
  margin-right: 15px;
}

.contacts__link-wrap svg {
  -ms-flex-negative: 0;
      flex-shrink: 0;
  color: var(--color-main);
  -webkit-transition: color .2s ease-out;
  transition: color .2s ease-out;
}

.contacts__map {
  position: relative;
}

.contacts__map-wrap {
  width: 100%;
  height: 500px;
  border-radius: 5px;
  border-top: 3px solid var(--color-border);
}

.contacts__map-title {
  position: absolute;
  opacity: 0;
}

/* [class*='ground-pane'] {
  -webkit-filter: grayscale(1);
          filter: grayscale(1);
} */

[class*='copyrights-pane'] {
  display: none;
}

.tab__catalog {
  display: none;
}

.tab__catalog-active {
  display: block;
}

.footer {
  padding-top: 5px;
  padding-bottom: 10px;
  border-top: 5px solid var(--color-border);
}

.footer__container {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  margin-right: auto;
}

.footer__container-logo {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

.footer__logo {
  margin-right: 30px;
}

.footer__logo img {
  max-width: 120px;
}