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


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

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

a {
    text-decoration: none;
}

img {
    display: block;
}


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

/* nav */

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

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

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

.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;
}

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

.logo-nav .logo-span {
    color: #2e2f42;
}

.logo-footer .logo-span {
    color: #f4f4fd;
}

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

.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;
    transition: color 250ms cubic-bezier(0.4, 0, 0.2, 1);

}


.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -1px;
    border-radius: 2px;
    width: 100%;
    height: 4px;
    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;    
    
}


.address {
    font-style: normal;
    margin-left: auto;

}

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

.address-link {
    display: block;
    padding: 24px 0;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #434455;
    transition: color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 1 */
.hero-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 1440px;
    min-height: 600px;
    margin: auto;
    background-color: #2e2f42;   
    background-image: linear-gradient(rgba(46, 47, 66, 0.7), rgba(46, 47, 66, 0.7)), url(../images/people-office-1.jpg);
    background-size: cover;    
    background-position: center;      
    background-repeat: no-repeat;
   
    }
   
.hero-title {
    text-align: center;   
    max-width: 496px;
    margin: 48px auto;
    font-weight: 700;
    font-size: 56px;
    line-height: 1.07;
    letter-spacing: 0.02em;    
    color: #ffffff;
    
}

.hero-button {
    margin: 0 auto;
    display: block;
    min-width: 169px;
    height: 56px;
    border: none;
    border-radius: 4px;    
    font-weight: 500;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.04em;
    color: #ffffff;
    background-color: #4d5ae5;
    cursor: pointer;
    transition: background-color 250ms cubic-bezier(0.4, 0, 0.2, 1);
          
}

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

/* 2 */

.solutions-section {
    padding: 120px 0;
}

.solutions-title {
    font-weight: 700;
    font-size: 36px;
    line-height: 1.11;
    letter-spacing: 0.02em;
    text-align: center;
    color: #2e2f42;
}

.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;

}

.solutions-list {
    display: flex;
    gap: 24px;
    align-items: center; 
    max-width: 1128px;     
}

.solutions-list-item {
   flex-basis: calc((100% - 72px) / 4);
}

.icon {
    display: flex;
    gap: 24px;
    border: 1px solid #8e8f99;
    border-radius: 4px;
    width: 264px;
    height: 112px;
    background-color: #f4f4fd;
    margin-bottom: 8px;
    align-items: center;
    justify-content: center;
}


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

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

/* 3 */

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

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



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

.team-icons-list {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    fill: #f4f4fd;
    transition: box-shadow 250ms cubic-bezier(0.4, 0, 0.2, 1); 
       
}

.team-icons-card {
    display: flex;
    align-items: center;
    justify-content: center;    
    width: 40px;
    height: 40px;
    border-radius: 50%;
    gap: 24px;
    background-color: #4D5AE5;
    transition: background-color 250ms cubic-bezier(0.4, 0, 0.2, 1);

    }

.team-icons-card:hover,
.team-icons-card:focus {
background-color: #404bbf;
    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);
}



.tli {
    border-radius: 0px 0px 4px 4px;
    flex-basis: calc((100% - 72px) / 4);
    box-shadow: 0px 2px 1px 0px rgba(46, 47, 66, 0.08), 
        0px 1px 1px 0px rgba(46, 47, 66, 0.16), 
        0px 1px 6px 0px rgba(46, 47, 66, 0.08);
    background: #fff;
} 

.tli-dli {
    padding: 32px 0;
}

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

.team-text {
    font-weight: 400;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #434455;
    text-align: center;
    margin-bottom: 8px;
}


/* 4 */

.portfolio-section {    
    padding: 120px 0;
}

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

.portfolio-list {
    display: flex;
    align-items: center;  
    flex-wrap: wrap;
    gap: 24px;
    row-gap: 48px;
   
}
/* ------------------ */

.box {
    position: relative;
    width: 360px;
    height: 300px;
    margin: 0 auto;
    overflow: hidden;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #4d5ae5;

    font-weight: 400;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #f4f4fd;
    padding: 40px 32px;
    margin: auto;

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

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

.overlay .pli {
    display: inline-block;
    padding: 2px 4px;
    border-radius: 2px;
    background-color: #fff;
    color: #2a2a2a;
    /* background-color: #4d5ae5 */
}
/* ---------------------- */



.pli {
    border-top: none;
    border-bottom: 1px solid #e7e9fc;
    border-left: 1px solid #e7e9fc;
    border-right: 1px solid #e7e9fc;
    padding: 32px 16px;
    transition: background-color 250ms cubic-bezier(0.4, 0, 0.2, 1); 
    
}

.pli:hover,
.pli:focus{
    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);
    background: #fff;
    
    }

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


/* footer */

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

.footer-size {
    margin-right: 120px;
}

.logo-footer {
    display: inline-block;
    margin-bottom: 16px;
    margin-right: 120px
}

.container-footer {
    display: flex;
    max-width: 1158px;
    padding: 0 15px;
    margin: 0 auto;
    gap: 16px;
    align-items: baseline;
    
   }
   
.footer-text {
    max-width: 264px;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #f4f4fd; 
   }


.team-text-icons{
    margin-bottom: 16px;
    font-weight: 500;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #fff;
}

.ticgf {
    gap: 16px;
}
.ticg {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    gap: 16px;
    border-radius: 50%;
    background-color: #4D5AE5;
    transition: background-color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.ticg:hover,
.ticg:focus {
    background-color: #31d0aa;

}