:root {
    --footer-text-color: #F4F4FD;
}

h1,h2,h3,h4,h5,h6,p {
    margin: 0;
}
ul {
    padding: 0;
    list-style: none;
    margin: 0;
}
a {
    text-decoration: none;
}
img {
    display: block;
    max-width: 100%;
    height: auto; 
}
.main-header {
    box-shadow: 0px 2px 1px rgba(46, 47, 66, 0.08),
        0px 1px 1px rgba(46, 47, 66, 0.16),
        0px 1px 6px rgba(46, 47, 66, 0.08);
}
.container {
    max-width: 1158px;
    padding: 0 15px;
    margin: 0 auto;
}
.section {
    padding: 120px 0;
}
.header-container {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid #e7e9fc;
}
.navigation {
    display: flex;
    align-items: center;
}
.nav-list {
    display: flex;
    gap: 40px;
}
.contacts-list {
    display: flex;
    gap: 40px;
}
body {
    font-family: 'Roboto', sans-serif;
    color: #434455;
    background-color: #FFFFFF;
}
.logo-web {
    color: #4D5AE5;
    font-family: 'Raleway', sans-serif;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.17;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    text-decoration: none;
    margin-right: 76px;
    padding: 24px 0;
}
.logo-studio {
    color:#2E2F42;
    font-family: 'Raleway', sans-serif;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.17;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    text-decoration: none;
}
.nav-link {
    color: #2E2F42;
    padding: 20px 0;
    display: block;
    transition-property: color;
    transition-duration: 250ms;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
.studio-link {
    position: relative;
    color: #404BBF;
}
.studio-link::after {
    position: absolute;
    content: "";
    width: 48px;
    height: 4px;
    border-radius: 2px;
    display: block;
    background-color: #404BBF;
    bottom: -1px;
}
.contacts-links {
    padding: 24px 0;
    display: block;
}
.nav-link:hover,
.nav-link:active,
.nav-link:focus {
    color: #404BBF;
}

.nav-list a {
    font-weight: 500;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    text-decoration: none;
}
.list {
    width: calc((100% - 72px) / 4);
}
.contacts-list .contacts-links {
    color: #434455;
    transition-property: color;
        transition-duration: 250ms;
        transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
.contacts {
    font-style: normal;
}
.contacts-list .contacts-links:hover,
.contacts-list .contacts-links:focus {
    color: #404BBF;
}
.contacts-list a {
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    text-decoration: none;
}
.features-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 112px;
    background-color: #F4F4FD;
    border: 1px solid #8e8f99;
    border-radius: 4px;
    margin-bottom: 8px;
}
.sec-back {
    background-color: #2E2F42;
    padding: 188px 0;
    background-image: linear-gradient(rgba(46, 47, 66, 0.7), rgba(46, 47, 66, 0.7)), url(../images/people-office-1.jpg);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    max-width: 1440px;
    margin: 0 auto;
}
.sec-back .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 48px;
}
.hero-title {
    color: #FFFFFF;
    font-weight: 700;
    font-size: 56px;
    text-decoration: none;
    line-height: 1.07;
    letter-spacing: 0.02em;
    text-align: center;
    max-width: 496px;
}
.btn {
    min-width: 169px;
    height: 56px;
    color: #FFFFFF;
    background-color: #4D5AE5;
    font-weight: 500;
    font-size: 16px;
    text-decoration: none;
    line-height: 1.5;
    letter-spacing: 0.04em;
    text-align: center;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    transition-property: background-color;
        transition-duration: 250ms;
        transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
.btn:hover,
.btn:focus {
    background-color: #404BBF;
}
.sec-back {
    text-align: center;
}
.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-list {
    display: flex;
    gap: 24px;
}
.features-subtitle {
    color: #2E2F42;
    font-weight: 500;
    font-size: 20px;
    line-height: 1.2;
    letter-spacing: 0.02em;
    margin-bottom: 8px;
}
.team-block {
    padding: 32px 0;
    text-align: center;
    border-radius: 0 0 4px 4px;
    box-shadow: 0px 1px 6px rgba(46, 47, 66, 0.08),
        0px 1px 1px rgba(46, 47, 66, 0.16),
        0px 2px 1px rgba(46, 47, 66, 0.08);
}
.features-text {
    color: #434455;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
}
.descriptions-subtitle {
    color: #2E2F42;
    font-weight: 700;
    font-size: 36px;
    line-height: 1.11;
    letter-spacing: 0.02em;
    text-align: center;
    text-transform: capitalize;
    margin-bottom: 72px;
}
.team-list {
    display: flex;
    column-gap: 24px;
    gap: 24px;
}

.section-team {
    background-color: var(--footer-text-color);
}
.team-item {
    background-color:#ffffff;
    border-radius: 0 0 4px 4px;
    box-shadow: 0px 1px 6px rgba(46, 47, 66, 0.08),
        0px 1px 1px rgba(46, 47, 66, 0.16),
        0px 2px 1px rgba(46, 47, 66, 0.08);
}
.portfolio {
    display: flex;
    flex-wrap: wrap;
    gap: 48px 24px;
    transition-property: box-shadow;
        transition-duration: 250ms;
        transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
.portfolio-images {
    transition: box-shadow 250ms cubic-bezier(0.4, 0, 0.2, 1);
}
.portfolio-images:hover {
    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);
}
.portfolio-text {
    text-align: left;
} 
.social {
    display: flex;
    justify-content: center;
    gap: 24px;
}
.social-links {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #4D5AE5; 
    transition-property: background-color;
    transition-duration: 250ms;
        transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
.team-icons {
    fill: var(--footer-text-color);
}
.image-wrapper {
    position: relative;
    overflow: hidden;
}
.overlay {
    background-color: #4D5AE5;
    color: var(--footer-text-color);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: translateY(100%);
    transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.02em;
    padding: 40px 32px;
    line-height: 1.5;
    font-size: 16px;
}
.portfolio-images:hover .overlay,
.portfolio-images:focus {
    transform: translateY(0%);
}
.social-links:hover, 
.social-links:focus {
    background-color: #404BBF;
}
.images-block {
    padding: 32px 16px;
    border: 1px solid #e7e9fc;
    border-top: none;
}
.social-links-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #4D5AE5;
    transition-property: background-color;
    transition-duration: 250ms;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
.social-links-footer:hover,
.social-links-footer:focus {
    background-color: #31d0aa;
}
.low-part {
    background-color: #2E2F42;
    padding-top: 100px;
    padding-bottom: 100px;
}
.footer-container {
    display: flex;
    align-items: baseline;
}
.footer-left {
    margin-right: 120px;
}
.social-text {
    font-weight: 500;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #ffffff;
    margin-bottom: 16px;
}
.footer-icons {
    gap: 16px;
}
.footer-par {
    color: var(--footer-text-color);
    line-height: 1.5;
    letter-spacing: 0.02em;
    max-width: 264px;
}
.low-studio {
    color: var(--footer-text-color);
    font-family: 'Raleway', sans-serif;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.17;
    letter-spacing: 0.03em;
    text-decoration: none;
    text-transform: uppercase;
}
.footer-logo {
    display: inline-block;
    margin-bottom: 16px;
    color: #4D5AE5;
    font-family: 'Raleway', sans-serif;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.17;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    text-decoration: none;
}