body {
  font-family: "Roboto", sans-serif;
  color: #434455;
  background-color: #fff;
}
/* reset */
ul,
ol {
  list-style-type: none;
  margin: 0;
  padding: 0;
  text-decoration: none;
}
h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin: 0;
}
a {
  text-decoration: none;
}

/* common */
.container {
  max-width: 1158px;
  padding: 0 15px;
  margin: 0 auto;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
/* header */
.page-header {
  border-bottom: 1px solid #e7e9fc;
  box-shadow:
    0 1px 6px 0 rgba(46, 47, 66, 0.08),
    0 1px 1px 0 rgba(46, 47, 66, 0.16),
    0 2px 1px 0 rgba(46, 47, 66, 0.08);
}
.header-container {
  display: flex;
  align-items: center;
}
.header-nav {
  display: flex;
  align-items: center;
}
.logo {
  font-family: "Raleway", sans-serif;
  font-weight: 700;
  font-size: 18px;
  line-height: 1.17;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #4d5ae5;
}

.header-logo .logo-part {
  color: #2e2f42;
}
.header-logo {
  padding: 24px 0;
  margin-right: 76px;
}
.footer-logo .logo-part {
  color: #f4f4fd;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-link {
  position: relative;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: #2e2f42;
  padding: 24px 0;
  display: block;
  transition: color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  background-color: #404bbf;
  border-radius: 2px;
  width: 100%;
  height: 4px;
  opacity: 0;
  transition: opacity 250ms cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-link:hover::after,
.nav-link:focus::after,
.nav-link.current::after {
  opacity: 1;
}
.contacts {
  font-style: normal;
  margin-left: auto;
}
.contacts-list {
  display: flex;
  align-items: center;
  gap: 40px;
}
.contacts-link {
  display: block;
  padding: 24px 0;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: #434455;
  transition: color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover,
.nav-link:focus,
.contacts-link:hover,
.contacts-link:focus,
.nav-link.current {
  color: #404bbf;
}

/* hero */
.hero-section {
  background-color: #2e2f42;
  padding: 188px 0;
  margin: 0 auto;
  max-width: 1440px;
  background-image:
    linear-gradient(rgba(46, 47, 66, 0.7), rgba(46, 47, 66, 0.7)),
    url("../images/hero.jpg");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}
.container-hero {
  text-align: center;
}
.main-title {
  font-family: Roboto;
  font-weight: 700;
  font-size: 56px;
  line-height: 1.071;
  letter-spacing: 0.02em;
  color: #ffffff;
  margin: 0 auto;
  margin-bottom: 48px;
  max-width: 496px;
  text-align: center;
}
.hero-button {
  font-family: Roboto;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: #ffffff;
  background-color: #4d5ae5;
  cursor: pointer;
  border-radius: 4px;
  min-width: 169px;
  height: 56px;
  box-shadow: 0 4px 4px 0 rgba(0, 0, 0, 0.15);
  padding: 16px 32px;
  border: none;
  transition: background 250ms cubic-bezier(0.4, 0, 0.2, 1);
}
.hero-button:hover,
.hero-button:focus {
  box-shadow: 0 4px 4px 0 rgba(0, 0, 0, 0.15);
  background: #404bbf;
}

/* features */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  padding: 0;

  white-space: nowrap;
  clip-path: inset(100%);
  clip: rect(0 0 0 0);
  overflow: hidden;
}
.features {
  background-color: #ffffff;
  margin-bottom: 0 auto;
  padding: 120px 0;
}

.features-list {
  display: flex;
  column-gap: 24px;
}

.features-list-item {
  width: 264px;
}
.conteiner-features {
  border: 1px solid #8e8f99;
  border-radius: 4px;
  width: 264px;
  height: 112px;
  background: #f4f4fd;
  margin-bottom: 8px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.features-title {
  font-weight: 500;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: #2e2f42;
  padding-bottom: 8px;
}

.features-descr {
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.02em;
}
/* team */
.team {
  background-color: #f4f4fd;
  margin-bottom: 0 auto;
  padding: 120px 0;
}
.team .section-title {
  text-align: center;
  font-weight: 700;
  font-size: 36px;
  line-height: 1.111;
  letter-spacing: 0.02em;
  color: #2e2f42;
  margin-bottom: 72px;
}
.team-list {
  display: flex;
  gap: 24px;
}
.team-list-item {
  background-color: #fff;
  border-radius: 0 0 4px 4px;
  box-shadow:
    0 2px 1px 0 rgba(46, 47, 66, 0.08),
    0 1px 1px 0 rgba(46, 47, 66, 0.16),
    0 1px 6px 0 rgba(46, 47, 66, 0.08);
  background: #fff;
  width: calc((100% - (24px * 3)) / 4);
}
.content-team {
  padding: 32px 16px;
}
.team-title {
  font-weight: 500;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-align: center;
  color: #2e2f42;
  margin-bottom: 8px;
}
.team-descr {
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  text-align: center;
}
.social-links {
  display: flex;
  gap: 24px;
  margin-top: 8px;
}
.social-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: #4d5ae5;
  transition: background 250ms cubic-bezier(0.4, 0, 0.2, 1);
}
.icon {
  fill: #f4f4fd;
}
.social-icon:hover,
.social-icon:focus {
  background-color: #404bbf;
}
/* portfolio */
.portfolio {
  padding: 120px 0;
}
.portfolio .container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  align-content: center;
}
.section-title {
  font-family: "Roboto", sans-serif;
  font-weight: 700;
  font-size: 36px;
  line-height: 1.11;
  letter-spacing: 0.02em;
  text-align: center;
  color: #2e2f42;
  margin-bottom: 72px;
}
.portfolio-list {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 48px 24px;
}
.portfolio-list-item {
  transition:
    transform 250ms cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 250ms cubic-bezier(0.4, 0, 0.2, 1);
}
.content-portfolio {
  border-bottom: 1px solid #e7e9fc;
  border-left: 1px solid #e7e9fc;
  border-right: 1px solid #e7e9fc;
  padding: 32px 16px;
  width: 360px;
}
.portfolio-title {
  font-weight: 500;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: #2e2f42;
  margin-bottom: 8px;
}
.portfolio-descr {
  font-family: "Roboto", sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: #434455;
}
.portfolio-img-overlay {
  position: relative;
  overflow: hidden;
}
.portfolio-item-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 300px;
  background-color: #4d5ae5;
  padding: 40px 32px;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: #f4f4fd;
  transform: translateY(100%);
  transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1);
}
.portfolio-list-item:hover .portfolio-item-overlay {
  transform: translateY(0);
}
.portfolio-list-item:hover,
.portfolio-list-item:focus {
  cursor: pointer;
  box-shadow:
    0 2px 1px 0 rgba(46, 47, 66, 0.08),
    0 1px 1px 0 rgba(46, 47, 66, 0.16),
    0 1px 6px 0 rgba(46, 47, 66, 0.08);
}

/* footer */

.page-footer {
  padding-top: 100px;
  padding-bottom: 100px;
  background-color: #2e2f42;
}
.page-footer .container {
  display: flex;
  gap: 120px;
  align-items: baseline;
}
.footer-logo {
  display: block;
  margin-bottom: 16px;
}
.text-footer {
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: #f4f4fd;
  width: 264px;
}
.text-social {
  font-weight: 500;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: #fff;
  margin-bottom: 16px;
}
.social-links-footer {
  display: flex;
  gap: 16px;
}
.social-icon-footer {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: #4d5ae5;
  fill: #f4f4fd;
  transition: background 250ms cubic-bezier(0.4, 0, 0.2, 1);
}
.social-icon-footer:hover,
.social-icon-footer:focus {
  background-color: #31d0aa;
}