/* ================================================ */
/* Reset & Base                                     */
/* ================================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;    
}

body {
    font-family: "Roboto", sans-serif;
    color: #434455;
    background-color: #fff;
    line-height: 1.5;
    letter-spacing: 0.02em;
}

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

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

ul {
    list-style: none;
}

/* ================================================ */
/* Typography & Helpers                             */
/* ================================================ */

.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;
}

.section {
    padding: 120px 0;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.11;
    letter-spacing: 0.02em;
    text-align: center;
    color: #2e2f42;
    margin-bottom: 72px;
    text-transform: capitalize;
}

/* ================================================ */
/* Header                                           */
/* ================================================ */

.header {
    border-bottom: 1px solid #e7e9fc;
    background: #fff;
    box-shadow: 0 1px 6px rgba(46, 47, 66, 0.08),
            0 1px 1px rgba(46, 47, 66, 0.16),
            0 2px 1px rgba(46, 47, 66, 0.08);
}

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

.logo {
    padding: 24px 0;
    font-family: "Raleway", sans-serif;
    font-weight: 700;
    font-size: 18px;
    line-height: 1.17;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: #4D5AE5;
    text-decoration: none;
    margin-right: 76px;   
}

.logo-accent {
    color: #2e2f42;
}

.nav-list {
    display: flex;
    gap: 40px;
    list-style: none;    
}

.nav-link {
    position: relative;
    display: block;
    padding: 24px 0;
    font-weight: 500;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #2e2f42;
    text-decoration: none;
    transition: color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link::after{
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background-color:#404bbf;
    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 {
    list-style: none;
    display: flex;
    gap: 40px;
    margin-left: auto;    
}

.contacts-link {
    display: block;
    padding: 24px 0;
    font-style: normal;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #434455;
    text-decoration: none;
    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 {
    background-image: linear-gradient(
        rgba(46, 47, 66, 0.7),
        rgba(46, 47, 66, 0.7)
    ),
    url('../images/people-office1.jpg');
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;    
    padding: 188px 0;
    text-align: center;
    max-width: 1440px;
    margin: 0 auto;
}

.hero-title {
    font-weight: 700;
    font-size: 56px;    
    line-height: 1.07;
    letter-spacing: 0.02em;
    color: #ffffff;
    max-width: 496px;
    margin: 0 auto 48px;    
}

.btn {
    font-family: inherit;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.5;
    letter-spacing: 0.04em;
    cursor: pointer;
    border: none;
    border-radius: 4px;    
}

.hero-btn {
    background-color: #4d5ae5;
    color: #fff;
    min-width: 169px;
    padding: 16px 32px;
    transition: background-color 0.25s;    
}

.hero-btn:hover,
.hero-btn:focus {
    background-color: #404bbf;
}

/* ================================================ */
/* Features                                         */
/* ================================================ */

.features-list {
    list-style: none;
    display: flex;
    gap: 24px;
}

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

.feature-icon-container{
    display: flex;
    align-items: center;
    justify-content: center;
    height: 112px;
    background-color: #f4f4fd;
    border-radius: 4px;
    border: 1px solid #8e8f99;
    margin-bottom: 8px;
}

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

/* ================================================ */
/* Team                                             */
/* ================================================ */

.team {
    background-color: #f4f4fd;
}

.team-list {
    list-style: none;
    display: flex;
    gap: 24px;
}

.team-card {
    text-align: center;
    background: #fff;
    border-radius: 0 0 4px 4px;
    overflow: hidden;
    box-shadow: 0 2px 1px rgba(46, 47, 66, 0.08),
        0 1px 1px rgba(46, 47, 66, 0.16), 
        0 1px 6px rgba(46, 47, 66, 0.08);
}

.team-thumb{
    padding: 32px 16px;
}

.team-name {
    font-weight: 500;
    font-size: 20px;
    line-height: 1.2;
    letter-spacing: 0.02em;
    color: #2e2f42;
    margin-bottom: 8px;
}
 
.team-position {
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;    
}

.social-list{
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 8px;
}

.social-item{
    width: 40px;
    height: 40px;
}

.social-link{
    width: 100%;
    height: 100%;
    background-color: #4D5AE5;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.social-icon{
    fill: #F4F4FD;
}

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



/* ================================================ */
/* Portfolio                                        */
/* ================================================ */

.portfolio-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 48px 24px;
}

.portfolio-item {
    width: calc((100% - 48px) / 3);
    transition: box-shadow 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

.portfolio-type {
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #434455;
}
.portfolio-thumb{
    padding: 32px 16px;
    border-width: 0px 1px 1px 1px;
    border-style: solid;
    border-color: #E7E9FC;
}

.portfolio-cover-block{
    position: relative;
    overflow: hidden;
}

.portfolio-overlay{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    padding: 40px 32px;
    background-color: #4d5ae5;
    color: #F4F4FD;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;

    transform: translateY(100%);
    transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.portfolio-item:hover .portfolio-overlay{
    transform: translateY(0%);
}
/* ================================================ */
/* Footer                                           */
/* ================================================ */

.footer {
    background-color: #2E2F42;
    padding: 100px 0;
}

.footer-container{
    display: flex;
}

.logo-footer {
    display: inline-block;
    font-family: "Raleway", sans-serif;
    font-weight: 700;
    font-size: 18px;
    line-height: 1.17;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: #4D5AE5;
    text-decoration: none;
    margin-bottom: 16px;
}

.logo-accent-footer{
    color: #F4F4FD;
}

.footer-text {
    color: #F4F4FD;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    max-width: 264px;
}

.footer-social{
    margin-left: 120px;
}

.footer-social-text{
    font-weight: 500;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #FFFFFF;
}

.footer-social-list{
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 16px;
}

.footer-social-item{
    width: 40px;
    height: 40px;
}

.footer-social-link{
    width: 100%;
    height: 100%;
    background-color: #4D5AE5;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-social-icon{
    fill: #F4F4FD;
}

.footer-social-link:hover,
.footer-social-link:focus{
    background-color: #404bbf;
}