:root {
  --light-blue: #2196f3;
  --grey: #757575;
  --black: #212121;
  --white: #e5e5e5;
  --main-banner: #2f303a;
  --white-main-banner: #ffffff;
  --portfolio-button: #f5f4fa;
  --flex-gap: 1.25rem;
}

body {
  color: var(--grey);
  background-color: var(--white-main-banner);
  margin: 0px;
  padding: 0px;
  font-family: "Roboto", sans-serif;
}
.container {
  margin: 0 auto;
  width: 1200px;
}
.header-elements {
  background-color: var(--white-main-banner);
  line-height: 1.17;
  box-sizing: border-box;
  width: 100%;
  display: block;
}
.nav-links a {
  color: var(--black);
}
.nav-links {
  font-size: 14px;
  text-decoration: none;
  box-sizing: border-box;
  list-style: none;
  padding: 0;
  display: flex;
  gap: var(--flex-gap);
  justify-content: space-around;
  align-items: center;
}
.nav-logo {
  font-size: 26px;
  font-family: Raleway;
  text-decoration: none;
}
.nav-menu {
  text-decoration: none;
  font-size: 14px;
}
.nav-menu,
.nav-links {
  font-weight: 500;
}
.nav-links a:hover,
.nav-links a:focus,
.nav-contacts:hover,
.nav-contacts:focus {
  color: var(--light-blue);
}
.web-color {
  color: var(--light-blue);
}
.nav-contacts {
  color: var(--black);
  text-decoration: none;
  font-size: 14px;
  box-sizing: border-box;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
}
.main-banner {
  color: var(--white-main-banner);
  background-color: var(--main-banner);
  padding: 200px 0;
  text-align: center;
  box-sizing: border-box;
}
.main-banner > h1 {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.36;
  text-align: center;
  text-transform: uppercase;
}
.main-banner-description {
  line-height: 1.36;
}
.button-main {
  color: var(--white-main-banner);
  background-color: var(--light-blue);
  font-size: 16px;
  line-height: 1.875;
  padding: 10px 42px;
  border: 0;
  outline: none;
  cursor: pointer;
}
.main-description-box {
  list-style: none;
  display: flex;
  justify-content: flex-start;
  margin-top: 94px;
  margin-bottom: 94px;
  padding: 0;
  gap: var(--flex-gap);
}
.main-description {
  font-size: 14px;
  text-align: justify;
  box-sizing: border-box;
}
.main-description-title {
  color: black;
  font-size: 14px;
  line-height: 1.17;
}
.main-description-text {
  line-height: 1.71;
}
.section-working {
  margin-bottom: 188px;
}
.section-headline {
  color: var(--black);
  font-weight: 700;
  text-align: center;
  line-height: 1.17;
  box-sizing: border-box;
  margin-bottom: 50px;
}
.section-working-kind {
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  padding: 0;
}
.about-us {
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  padding: 0;
}

.about-us figure {
  margin: 0;
}
.about-us-img {
  margin-bottom: 30px;
}
.about-name {
  color: var(--black);
  font-weight: 500;
  text-align: center;
}
.about-position {
  text-align: center;
  margin-bottom: 94px;
}
.about-name,
about-position {
  line-height: 1.17;
}
.footer {
  background-color: var(--main-banner);
  font-size: 14px;
  box-sizing: border-box;
  line-height: 1.17;
  padding: 60px 0;
  font-family: Raleway;
  text-decoration: none;
  width: 100%;
}
.footer-color-web {
  color: var(--light-blue);
  font-size: 26px;
}
.footer-color-studio {
  font-size: 26px;
  color: var(--white);
}
.footer-adress {
  color: var(--white-main-banner);
  text-decoration: none;
  padding-top: 20px;
  padding-bottom: 9px;
}
.portfolio-button {
  font-size: 16px;
  line-height: 1.625;
  list-style: none;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 1rem;
  border: 0;
  outline: 0;
  margin-top: 100px;
  margin-bottom: 56px;
  padding: 0;
}
.portfolio-button-nav {
  color: var(--black);
  background-color: var(--portfolio-button);
  font-size: 16px;
  line-height: 1.625;
  font-weight: 500;
  outline: none;
  border: 0;
  border-radius: 4px;
  padding: 6px 22px;
  cursor: pointer;
}
.portfolio-button-nav:hover,
.portfolio-button-nav:focus {
  color: var(--portfolio-button);
  background-color: var(--light-blue);
}
.about-projects-title {
  font-weight: 700;
  font-size: 18px;
  color: var(--black);
  line-height: 2;
  margin-bottom: 4px;
}
.about-projects-type {
  font-size: 16px;
  line-height: 1.875;
}
.about-all-projects {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 114px;
}
.about-all-projects-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--flex-gap);
  padding: 0;
}
.about-all-projects-list figure {
  margin: 0;
  border: 1px solid #eeeeee;
}
.about-all-projects-list figcaption {
  padding: 0 24px;
  margin: 20px 0;
}
.nav-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
}
.nav-separator {
  flex-grow: 1;
}
.nav-box-contacts {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  gap: var(--flex-gap);
  padding: 0;
  list-style: none;
}