body {
    font-family: "Roboto", sans-serif;
    color: #434455;
    background-color: #fff;
}

/*reset*/

ul, ol {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

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

a {
    text-decoration: none;
}

/*common*/

.container {
    max-width: 1158px;
    padding: 0 15px;
    margin: 0 auto;
}

/*header*/

.page-header {
    border-bottom: 1px solid #e7e9fc;
}

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

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

.nav-list {
    display: flex;
    align-items: center;
    gap: 40px;
}

.contacts-list{
    display: flex;
    align-items: center;
    gap: 40px;
}

.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 {
    padding: 24px 0;
    margin-right: 76px;
}

.header-logo .logo-part {
    color: #2e2f42;
}

.footer-logo .logo-part {
    color:#f4f4fd
}
.nav-link {
    display: block;
    padding: 24px 0;
    font-family: 'Roboto', sans-serif;
    font-weight: 500;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #2e2f42;
}

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

.contacts {
    font-style: normal;
    margin-left: auto;
    
}

.contacts-link {
    display: block;
    padding: 24px 0;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #434455;
}

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

.section-first {
    padding: 188px 0;
    background: #2e2f42;
}

.main-title {
    max-width: 496px;
    margin-left: auto;
    margin-right: auto;
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    font-size: 56px;
    line-height: 1.07;
    letter-spacing: 0.02em;
    text-align: center;
    color: #fff;
}

.button {
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-top: 48px;
    min-width: 169px;
    height: 56px;
    border: none;
    border-radius: 4px;
    background:#4D5AE5;
    color:#fff;
    font-weight: 500;
    line-height: 1.5;
    letter-spacing: 0.04em;
    cursor: pointer;
}

.button:hover {
    background-color:#404BBF;
    color: #f4f4fd;

}

.button:focus {
    background-color:#404BBF;
    color: #f4f4fd;
}

.section-third {
    background-color: #f4f4fd;
    padding: 120px 0
}

.section-second {
    padding: 120px 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;
}

.image {
   display: block
}

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

.principles-link {
    width: calc((100% - 72px) / 4);
}

.team-link {
    background-color: #FFFFFF;
    width: calc((100% - 72px) / 4);
    border-radius: 0px 0px 4px 4px;
}

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

.second-title {
    margin-bottom: 72px; 
    font-size: 36px;
    line-height: 1.11;
    text-align: center;
    letter-spacing: 0.02em;
    color: #2e2f42;
    text-transform: capitalize
}

.third-title {
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 20px;
    line-height: 1.2;
    letter-spacing: 0.02em;
    color: #2e2f42;
}

.text-principles {
    font-weight: 400;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #434455;
}

.person {
    padding: 32px 0
}

.team-title {
    text-align: center;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 20px;
    line-height: 1.2;
    letter-spacing: 0.02em;
    color: #2e2f42;
}

.text-team {
    text-align: center;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #434455;
}

.section-fourth {
    padding-top: 120px; 
    padding-bottom: 120px;
}

.portfolio-title {
    font-weight: 500;
    font-size: 20px;
    line-height: 1.2;
    letter-spacing: 0.02em;
    color: #2e2f42;
    margin-bottom: 8px;
}

.portfolio-list {
     display: flex;
     flex-wrap: wrap;
     column-gap: 24px;
     row-gap: 48px;
}

.portfolio-item {
    width: calc((100% - 48px) / 3);
}

.portfolio {
    padding: 32px 16px;
    border: 1px solid #e7e9fc;
    border-top: none;
}

.page-footer {
    background-color: #2e2f42;
    padding: 100px 0;
}

.footer-text {
max-width: 264px;
font-weight: 400;
font-size: 16px;
line-height: 1.5;
letter-spacing: 0.02em;
color: #f4f4fd;
}

.footer-logo {
    display: inline-block;
    margin-bottom: 16px;
}