:root {
  --main-title-color: #212121;
  --secondary-title-color: #757575;
  --main-text-color: #212121;
  --secondary-text-color: #757575;
  --accent-color: #2196f3;
  --tertiary-text-color: #ffffff;
  --background-color: #e5e5e5;
  --background-btn-color: #f5f4fa;
  --main-background-color: #ffffff;
  --project-gap: 30px;
  --container-gap: 94px;
}

/* ---------------------------RESET--------------------------*/

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

ul {
  margin: 0;
  padding-left: 0;
}

body {
  font-family: 'Roboto', sans-serif;
  font-size: 14px;
  letter-spacing: 0.03em;
  color: var(--main-title-color);
}

a {
  text-decoration: none;
}

button {
  border: none;
}

ul li {
  list-style: none;
}

.link {
  text-decoration: none;
}
button {
  border: none;
}

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

/* --------------------ЗАГАЛЬНІ КЛАСИ------------------*/

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  border: 0;
  clip: rect(0 0 0 0);
}

/* ----------------------ШАПКА САЙТУ--------------------*/

.header {
  padding-top: 24px;
  padding-bottom: 25px;
  background-color: var(--main-background-color);
  border: 1px solid #ececec;
}

.header-container {
  display: flex;
}

.header-navigation {
  display: flex;
}

.logo {
  margin-right: 93px;
  font-family: Raleway, sans-serif;
  display: flex;
  font-weight: bold;
  font-size: 26px;
  line-height: 1.2;
  color: var(--accent-color);
}

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

.header-list {
  display: flex;
  align-items: center;
}
.header-item:not(:last-child) {
  margin-right: 50px;
}

.header-link {
  font-weight: 500;
  line-height: 1.14;
  letter-spacing: 0.02em;
  color: var(--main-text-color);
}

.header-link:hover,
.header-link:focus,
.header-contact-link:hover,
.header-contact-link:focus {
  color: var(--accent-color);
}
.header-link-current {
  color: var(--accent-color);
}

.header-contacts-list {
  margin-left: auto;
  display: flex;
  align-items: center;
}

.header-contacts-item:not(:last-child) {
  margin-right: 50px;
}

.header-contact-link {
  font-weight: 500;
  line-height: 1.14px;
  letter-spacing: 0.02em;
  color: var(--secondary-text-color);
}

/* ----------------------ГЕРОЙ--------------------*/

.hero {
  padding-top: 200px;
  padding-bottom: 200px;
  text-align: center;
  background-color: #2f303a;
}

.hero-title {
  margin: 0 auto;
  max-width: 696px;
  font-weight: 900;
  font-size: 44px;
  line-height: 1.36;
  text-align: center;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--tertiary-text-color);
}

.hero-btn {
  margin-top: 30px;
  padding: 10px 32px;
  font-family: inherit;
  font-weight: bold;
  font-size: 16px;
  line-height: 1.87;
  text-align: center;
  letter-spacing: 0.06em;
  border-radius: 4px;
  color: var(--tertiary-text-color);
  background-color: var(--accent-color);
  cursor: pointer;
}

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

.features {
  padding-top: var(--container-gap);
  padding-bottom: var(--container-gap);
}

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

.features-list-item:not(:last-child) {
  margin-right: 30px;
}

.features-list-title {
  font-weight: bold;
  line-height: 1.14;
  text-transform: uppercase;
}

.features-list-text {
  margin-top: 10px;
  max-width: 270px;
  line-height: 1.71;
  color: var(--secondary-text-color);
}

/*------------------------ПРИКЛАДИ РОБІТ-----------------------*/

.products {
  padding-bottom: var(--container-gap);
  background-color: var(--main-background-color);
}

.products-title {
  font-weight: bold;
  font-size: 36px;
  line-height: 1.17;
  text-align: center;
}

.products-list {
  margin-top: 50px;
  display: flex;
  align-items: center;
}

.products-list-item:not(:last-child) {
  margin-right: 30px;
}

/*--------------------------НАША КОМАНДА------------------------*/

.team {
  padding-top: var(--container-gap);
  padding-bottom: var(--container-gap);
  background-color: #f5f4fa;
}

.team-list {
  margin-top: 50px;
  display: flex;
  align-items: center;
}

.team-list-item {
  background-color: var(--main-background-color);
  border-radius: 0px 0px 4px 4px;
  box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.12), 0px 1px 1px rgba(0, 0, 0, 0.14),
    0px 2px 1px rgba(0, 0, 0, 0.2);
}

.team-list-item:not(:last-child) {
  margin-right: 30px;
}

.team-title {
  font-weight: bold;
  font-size: 36px;
  line-height: 1.17;
  text-align: center;
}

.team-list-title {
  margin-top: 30px;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.19;
  text-align: center;
}

.team-list-text {
  margin-top: 10px;
  padding-bottom: 30px;
  font-size: 16px;
  line-height: 1.19;
  text-align: center;
  color: var(--secondary-text-color);
}

/*------------------------------ПІДВАЛ--------------------------*/

.footer {
  padding-top: 60px;
  padding-bottom: 60px;
  background-color: #2f303a;
}

.footer-logo {
  color: var(--tertiary-text-color);
}

.address-list {
  margin-top: 20px;
  line-height: 1.71;
}

.link {
  font-family: inherit;
  font-style: normal;
  font-weight: normal;
  line-height: 1.71;
}

.address-item-contact {
  margin-top: 9px;
}

.address-link {
  color: var(--tertiary-text-color);
}

.address-link-contact {
  color: rgba(255, 255, 255, 0.6);
}

.address-link:hover,
.address-link:focus,
.address-link-contact:hover,
.address-link-contact:focus {
  color: var(--accent-color);
}

/*----------------------ПОРТФОЛІО-----------------------*/

.filter {
  padding-top: var(--container-gap);
  padding-bottom: var(--container-gap);
}

.filter-item:not(:last-child) {
  margin-right: 8px;
}

.filter-list {
  margin-bottom: 50px;
  padding-left: 280px;
  display: flex;
}

.filter-btm {
  padding: 6px 22px 6px 22px;
  font-family: inherit;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.62;
  text-align: center;
  letter-spacing: 0.03em;
  color: var(--main-title-color);
  border-radius: 4px;
  background-color: var(--background-btn-color);
  cursor: pointer;
}

.filter-btm:hover,
.filter-btm.focus {
  background-color: var(--accent-color);
  color: var(--tertiary-text-color);
}

.current {
  background-color: var(--accent-color);
  color: var(--tertiary-text-color);
}

.projects {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  margin-left: calc(-1 * var(--project-gap));
  margin-top: calc(-1 * var(--project-gap));
}

.project-item {
  width: 370px;
  flex-basis: calc(100% / 3 - var(--project-gap));
  margin-left: var(--project-gap);
  margin-top: var(--project-gap);
}

.project-description {
  padding: 20px 24px;
  background: #ffffff;
  border: 1px solid #eeeeee;
}

.project-title {
  margin-bottom: 4px;
  font-weight: bold;
  font-size: 18px;
  line-height: 2;
  letter-spacing: 0.06em;
  color: var(--main-title-color);
}

.project-text {
  font-size: 16px;
  line-height: 1.87;
  color: var(--secondary-text-color);
}