@font-face {
  font-family: "Montserrat";
  src: local("Montserrat-Regular"), url("/fonts/Montserrat-Regular.woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Montserrat";
  src: local("Montserrat-Bold"), url("/fonts/Montserrat-Bold.woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* Base */

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Montserrat", sans-serif;
  font-weight: 400;
  font-style: normal;
  font-size: 16px;
  line-height: 1.5;
  background-color: #f1f1f1;
}

.container {
  max-width: 1200px;
  margin-inline: auto;
  padding: 0 15px;
}

/* Header */

.overphone {
  margin-top: 0px;
  height: 80px;
  background: transparent;
  z-index: 9;
}

.container-ourphone {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 0px;
}

.ourphone-row {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
}

.ourphone-img {
  width: 52px;
  height: 52px;
  margin-bottom: 10px;
  margin-top: 10px;
}

.ourphone-title {
  margin-top: 10px;
  margin-bottom: 10px;
  font-size: 24px;
  font-weight: 200;
  text-align: center;
  color: #f1f1f1;
}

.nummer-row {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  column-gap: 10px;

  padding-left: 10px;
  padding-right: 10px;

  background-color: #083343;

  border-radius: 8px;
  border: 1px solid #f1f1f1;
  color: #f1f1f1;
  line-height: 1;

  transition: all 0.2s ease-in;
}

.nummer-row:hover {
  background: #1782cf;
}

.nummer-img {
  height: 24px;
}

.header {
  padding-top: 150px;
  padding-bottom: 150px;

  background: linear-gradient(180deg, #1481a9 0%, #083343 100%);
  color: #f1f1f1;
}

.header-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  column-gap: 60px;
}

.header-img {
  border-radius: 10px;
}

.header-title {
  margin-bottom: 10px;
  font-weight: 400;
  font-size: 52px;
}

.header-text {
  margin-bottom: 20px;
  font-size: 26px;
  font-weight: 300;
}

.header-btns {
  display: flex;
  column-gap: 20px;
}

.btn {
  height: 48px;
  padding-top: 15px;
  padding-left: 25px;
  padding-right: 25px;

  background-color: #083343;
  border: 1px solid #ffffff;
  border-radius: 8px;

  color: #ffffff;
  line-height: 1;

  transition: all 0.2s ease-in;
}

.btn:hover {
  background-color: #1782cf;
}

/* Content */

.container-content {
  max-width: 1200px;
  margin-inline: auto;
  padding: 20px 30px;
  background: #e7ebec;
}

.content-tech-title {
  margin-bottom: 20px;
  font-size: 40px;
  font-weight: 700;
  text-align: center;
  color: #083343;
}

.contents {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.content-tech p {
  color: #083343;
  margin-top: 20px;
}

.content-avito {
  display: flex;
  flex-direction: column;
}

.btn-avito {
  height: 48px;
  padding: 15px 25px;
  margin-top: 20px;

  background-color: #083343;
  border: 1px solid #ffffff;
  border-radius: 8px;

  color: #ffffff;
  line-height: 1;

  transition: all 0.2s ease-in;
}

.btn-avito:hover {
  background-color: #1782cf;
}

.bg {
  width: 100%;
  min-height: 100vh;
  background-position: center;
  background-size: cover;
  background-attachment: fixed;
}

.bg-title {
  display: grid;
  place-content: center;
  /* justify-content: center;
  align-items: center; */
  color: #f1f1f1;
  font-size: 2rem;
  text-shadow: 0px 0px 10px #000;
}

.container-img1 {
  background-image: image-set(url("./../img/photo/photo9.webp"));
}

.container-img2 {
  background-image: image-set(url("./../img/photo/photo10.webp"));
}

.container-img3 {
  background-image: image-set(url("./../img/photo/photo11.webp"));
}

.container-img4 {
  background-image: image-set(url("./../img/photo/photo12.webp"));
}

.container-sheme {
  max-width: 1200px;
  margin-inline: auto;
  padding: 10px 10px;
}

:root {
  --gap: 1rem;
}

.list-masonry {
  columns: 400px;
  column-gap: var(--gap);
  padding: calc(var(--gap) / 1.25);
  background-color: #3294b8;
}

.item-masonry {
  margin-bottom: var(--gap);
}

.item-masonry img {
  width: 100%;
  display: block;
  border-radius: 10px;
}

.container-keramzit {
  max-width: 1200px;
  margin-inline: auto;
  padding: 20px 30px;
  background: linear-gradient(180deg, #eeeeee 0%, #d4f3ff 100%);
}

@keyframes fade-in {
  from {
    translate: -25vw;
    opacity: 0;
  }
}

.keramzit-img {
  display: flex;
  margin: 10px auto;
  width: 50%;
  height: 50%;
  border-radius: 20px;

  animation-name: fade-in;
  animation-fill-mode: both;
  animation-timing-function: linear;

  view-timeline-name: --fade-in-image;
  animation-timeline: --fade-in-image;
  animation-range: 10% 50%;
}

.keramzit-desc {
  padding-bottom: 10px;
}

.keramzit-title {
  font-size: 22px;
  padding-bottom: 10px;
  color: #083343;
}

.keramzit-text {
  color: #083343;
}

.features {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 auto;
  background: #b8d4df;
}

.features-tb {
  padding: 10px;
}

.features-container-img-pol {
  max-width: 660px;
  margin-inline: auto;
  justify-content: center;
  border-radius: 10px;
  background-image: image-set(url("./../img/photo/photo7.webp"));
  background-repeat: no-repeat;
  opacity: 0.5;
  box-shadow: 0px 0px 10px #2a3131;
}

.features-container-img-pol-title {
  text-align: center;
  padding-top: 20px;
  padding-bottom: 20px;
  font-size: 20px;
  color: #000000;
}

.list {
  text-align: center;
  padding-bottom: 20px;
  font-size: 18px;
  color: #000000;
}

.container-photo {
  max-width: 1200px;
  margin-inline: auto;
  background: #a1bfca;
}

.photo-title {
  padding-top: 20px;
  margin-bottom: 20px;
  font-size: 40px;
  font-weight: 700;
  text-align: center;
  color: #083343;
}

.slider {
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
}

.item {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid #000;
  flex-basis: 25%;
  transition: all 0.2s;

  &:hover {
    flex-basis: 100%;
  }

  span {
    font-size: 2rem;
    text-shadow: 0px 0px 10px #000;
  }
}

.item-1 {
  background: url(../img/photo/photo9.webp) no-repeat center center;
  background-size: cover;
}

.item-2 {
  background: url(../img/photo/photo10.webp) no-repeat center center;
  background-size: cover;
}

.item-3 {
  background: url(../img/photo/photo11.webp) no-repeat center center;
  background-size: cover;
}

.item-4 {
  background: url(../img/photo/photo12.webp) no-repeat center center;
  background-size: cover;
}

/* Contacts */

.contacts {
  padding: 80px 0;

  background: linear-gradient(180deg, #1481a9 0%, #083343 100%);
  /* background-color: #083343; */
  color: #fff;
}

.contacts-row {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  column-gap: 60px;
}

.contacts-img {
  width: 52px;
  height: 52px;
  margin-bottom: 65px;
}

.contacts-title {
  margin-bottom: 65px;
  font-size: 52px;
  font-weight: 700;
  text-align: center;
}

.messangers {
  display: flex;
  column-gap: 30px;
  flex-wrap: wrap;
  row-gap: 30px;
}

.messanger {
  flex-grow: 1;

  display: flex;
  column-gap: 15px;
  align-items: center;

  padding: 46px 20px;
  border-radius: 20px;

  border: 1px solid #ffffff;
  background-color: #083343;

  color: #fff;
  font-size: 20px;

  transition: background-color 0.2s ease-in;
}

.messanger:hover {
  background-color: #1782cf;
}

/* Partners */

.partners {
  padding: 80px 0;
  background-color: #2e2e2e;
  color: #f1f1f1;
}

.container-partners {
  max-width: 1200px;
  margin-inline: auto;
  padding: 0 15px;
}

.partners-title {
  font-size: 24px;
  text-align: center;
  margin-bottom: 60px;
}

.partners-column {
  display: flex;
  flex-direction: column;
  row-gap: 60px;
}

.partners-row {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  column-gap: 60px;
  align-items: center;
}

.partner {
  text-align: center;
}

.button {
  margin-bottom: 30px;
  font-size: 20px;
  text-align: center;

  align-items: center;

  padding: 20px;

  border: 1px solid #f1f1f1;
  border-radius: 8px;

  color: #f1f1f1;
  line-height: 1;

  transition: all 0.2s ease-in;
}

.button:hover {
  background: #1782cf;
}

/* Footer */

.footer {
  padding: 30px 0;
  background-color: #1e1e1e;

  color: #f1f1f1;
}

.footer a {
  color: #69beff;
}

.footer-inner {
  font-size: 14px;
  text-align: center;
}

.footer-inner p+p {
  margin-top: 15px;
}