:root {
  --main-font: 'Roboto', sans-serif;
  --secondary-font: 'Raleway', sans-serif;
  --main-color-text: #757575;
  --main-color-title: #212121;
  --active-color: #2196f3;
  --main-background-color: #2f303a;
  --secondary-background-color: #f5f4fa;
  --project-border-color: #eeeeee;
  --indent: 30px;
  --number: 1;
  --fill-icons: #afb1b8;
  --fill-active-icons: #ffffff;
}

html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--main-font);
  color: var(--main-color-text);
  font-size: 14px;
  line-height: 100%;
  letter-spacing: 3%;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin: 0;
}

.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;
}

.container {
  width: 1200px;
  padding-left: 15px;
  padding-right: 15px;
  margin-left: auto;
  margin-right: auto;
}

.section {
  padding-top: 94px;
}
.section:nth-of-type(n + 3) {
  padding-top: 94px;
  padding-bottom: 94px;
}

.grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--indent);
  align-items: flex-start;
}
.grid-item {
  flex-basis: calc(
    (100% - var(--indent) * (var(--number) - 1)) / var(--number)
  );
}
.list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.title {
  font-weight: 700;
  font-size: 36px;
  text-align: center;
  color: var(--main-color-title);
  margin-bottom: 50px;
}

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

/*================header========================== */
.header {
  border-bottom: 1px solid #ececec;
}

.header-container {
  display: flex;
  align-items: center;
}

.logo {
  font-family: var(--secondary-font);
  font-weight: 700;
  font-size: 26px;
  color: #2196f3;
  text-decoration: none;
  margin-right: 93px;
}

.header-logo {
  color: #000000;
}

.nav-list {
  display: flex;
  align-items: center;
}

.nav-item {
  margin-right: 50px;
}

.nav-item:last-child {
  margin-right: 0;
}

.header-link {
  display: block;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--main-color-title);
  padding-top: 32px;
  padding-bottom: 32px;
}
.header-contact-icon {
  fill: currentColor;
  margin-right: 10px;
}
.header-link:hover,
.header-link:focus {
  color: var(--active-color);
}
.current {
  color: var(--active-color);
}
.list-contacts {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.item-contacts {
  margin-right: 40px;
}

.item-contacts:last-child {
  margin-right: 0;
}

.header-nav {
  color: var(--main-color-text);
}

/*=========================hero===========================*/

.hero {
  max-width: 1600px;
  margin-left: auto;
  margin-right: auto;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  background-image:
    url(../images/hero/hero-img.png),
    linear-gradient(to bottom, rgba(47, 48, 58, 0.4), rgba(47, 48, 58, 0.4));
  background-color: var(--main-background-color);
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 200px 0px;
}

.hero-title {
  width: 696px;
  height: 100%;
  font-weight: 900;
  font-size: 44px;
  line-height: 1.36;
  letter-spacing: 0.06em;
  text-align: center;
  text-transform: uppercase;
  color: #ffffff;
  padding-bottom: 30px;
}

.hero-btn {
  width: 200px;
  height: 50px;
  font-family: Roboto;
  font-size: 16px;
  line-height: 1.87;
  letter-spacing: 0.06em;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  color: #ffffff;
  background-color: var(--active-color);
  border-radius: 4px;
  border-color: transparent;
}

.hero-btn:hover,
.hero-btn:focus {
  background-color: #188ce8;
}

/*====================================features=========================*/

.features-item {
  --number: 4;
}

.features-item:last-child {
  margin-right: 0;
}
.features-icon {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--secondary-background-color);
  margin-bottom: var(--indent);
  border-radius: 4px;
}
.features-title {
  font-weight: 700;
  line-height: 1.14;
  text-transform: uppercase;
  color: var(--main-color-title);
  margin-bottom: 10px;
}

.features-text {
  line-height: 1.71;
}

/*==============================activity======================*/

.activity-item {
  --number: 3;
}

/*==============================team==========================*/
.team {
  background-color: var(--secondary-background-color);
}

.team-item {
  background-color: #ffffff;
  --number: 4;
  border-bottom-right-radius: 4px;
  border-bottom-left-radius: 4px;
  box-shadow:
    0px 2px 1px 0px #00000033,
    0px 1px 1px 0px #00000024,
    0px 1px 3px 0px #0000001f;
}

.team-info {
  padding: 35px 0px;
}
.team-title {
  font-weight: 500;
  font-size: 16px;
  text-align: center;
  color: var(--main-color-title);
  margin-bottom: 10px;
}

.team-text {
  font-size: 16px;
  text-align: center;
  margin-bottom: 16px;
}
.social-list {
  display: flex;
  justify-content: center;
  align-items: center;
}
.social-item:not(:last-child) {
  margin-right: 10px;
}
.social-link {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
}
.social-link:hover,
.social-link:focus {
  background-color: var(--active-color);
}
.social-icon {
  fill: var(--fill-icons);
}
.social-icon:hover,
.social-icon:focus {
  fill: var(--fill-active-icons);
}
.social-link:hover .social-icon,
.social-link:focus .social-icon {
  fill: var(--fill-active-icons);
}
/*===============================client=========================*/
.client-item {
  --number: 6;
}
.client-link {
  width: 170px;
  height: 92px;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid var(--fill-icons);
  border-radius: 4px;
}
.client-link:hover,
.client-link:focus {
  border: 1px solid var(--active-color);
}
.client-icon {
  fill: var(--fill-icons);
}
.client-link:hover .client-icon,
.client-link:focus .client-icon {
  fill: var(--active-color);
}
/*===============================footer=========================*/
.footer {
  background-color: var(--main-background-color);
  padding: 60px 0px;
}
.footer-container {
  display: flex;
  align-items: baseline;
}
.footer-contact {
  margin-right: 70px;
}
.footer-logo-link {
  display: block;
  font-family: var(--secondary-font);
  font-weight: 700;
  font-size: 26px;
  color: #2196f3;
  text-decoration: none;
  padding-bottom: 28px;
}
.footer-logo {
  color: #ffffff;
}

.address {
  line-height: 1.71;
  font-style: normal;
}
.address-text {
  color: #ffffff;
  padding-bottom: 12px;
}
.address-item {
  padding-bottom: 12px;
}
.address-item:last-child {
  padding-bottom: 0px;
}
.address-link {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.6);
}

.address-link:hover,
.address-link:focus {
  color: var(--active-color);
}
.footer-social-text {
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: #ffffff;
}
.footer-social-link {
  background-color: #ffffff1a;
}
.footer-social-icon {
  fill: #ffffff;
}
/*=================================Portfolio=============================*/
.filters {
  padding: 94px 0px;
}
.filters-list {
  display: flex;
  justify-content: center;
  margin-bottom: 50px;
}
.filters-item {
  margin-right: 8px;
}
.filters-item:last-child {
  margin-right: 0;
}
.filters-btn {
  font-weight: 500;
  font-size: 16px;
  line-height: 1.625;
  cursor: pointer;
  color: var(--main-color-title);
  background-color: var(--secondary-background-color);
  border: 0;
  border-color: transparent;
  border-radius: 4px;
  padding: 6px 22px;
}

.filters-btn:hover,
.filters-btn:focus {
  color: #ffffff;
  background-color: var(--active-color);
  box-shadow:
    0px 2px 2px 0px #0000001f,
    0px 1px 2px 0px #00000014,
    0px 3px 1px 0px #0000001a;
}
.filters-btn-1 {
  width: 67px;
}
.filters-btn-2 {
  width: 125px;
}
.filters-btn-3 {
  width: 112px;
}
.filters-btn-4 {
  width: 103px;
}
.filters-btn-5 {
  width: 130px;
}

/*===========================Project==================================*/
.project-list {
}

.project-item {
  --number: 3;
}
.project-cart:hover,
.project-cart:focus {
  box-shadow:
    1px 4px 6px 0px #00000029,
    0px 4px 4px 0px #0000000f,
    0px 1px 1px 0px #0000001f;
}

.project-link {
  text-decoration: none;
}
.project-content {
  padding: 20px 24px;
  border: 1px solid var(--project-border-color);
  border-top: none;
}

.project-title {
  font-weight: 700;
  font-size: 18px;
  line-height: 2;
  letter-spacing: 6%;
  color: var(--main-color-title);
  margin-bottom: 4px;
}

.project-text {
  font-size: 16px;
  line-height: 1.875;
  color: var(--main-color-text);
}