html {
    box-sizing: border-box;
}

*,
*::after,
*::before {
    box-sizing: inherit;
}

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

a {
    text-decoration: none;
}

ul {
    list-style: none;
}

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

:root {
    --font-family: "Roboto", sans-serif;
    --second-family: "Raleway", sans-serif;

  
    --font-size-base: 16px;

    --ls-tight: 0.02em;
    --ls-normal: 0.03em;
    --ls-wide: 0.06em;

    --lh-auto: 1.2;


    --color-text-main: #212121;
    --color-text-secondary: #757575;
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f5f4fa;
    --color-accent: #2196f3;
    --color-icon-primary:#afb1b8;


}

body {
background-color: var(--color-bg-primary);

font-family: var(--font-family);    
font-size: var(--font-size-base);
color: var(--color-text-main);
line-height: var(--lh-auto);
letter-spacing: var(--ls-normal);
font-weight: 400;
}

.container {
  max-width:1200px;
  padding-left: 15px;
  padding-right: 15px;
  margin: 0 auto;
}

.header{
    padding:24px 0 25px;
}

.header-portfolio{
    border-width:1px;
    border-color:#ECECEC;
    border-style:solid;
}

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

.header .logo-link {
    margin-right: 93px;
}

.header-icon{
    
    margin-right: 10px;
    fill: currentColor;
}

.header-icon_email {
    width: 16px;
    height: 12px;
}

.header-icon_phone {
    width: 10px;
    height: 16px;
}

.logo-link {

    color:inherit;
    font-family: var(--second-family);
    font-size: 26px;
    font-weight: 700;
}

.logo-accent {
    color:var(--color-accent);
}


.nav-list{
    display:flex;
    gap: 50px;
}

.header-list{
    display: flex;
    margin-left: auto;
   gap: 50px;
}

.nav-link{font-size: 14px;
letter-spacing: var(--ls-tight);
font-weight: 500;
color: var(--color-text-main);
transition: color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link.current {
    position: relative;

    color: var(--color-accent);
}

.nav-link.current::after {
    position: absolute;
    display: block;
    content: '';
    width: 100%;
    height: 4px;
    bottom:-32px;
    border-radius: 2px;
    background-color:var(--color-accent);
}

.header-contact {
   display: flex;
   justify-content: center;
   align-items: center;
    font-size: 14px;
    letter-spacing: var(--ls-tight);
    font-weight: 500;
    color:var(--color-text-secondary);
    transition: color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}



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

.hero{
max-width: 1600px;
padding-top: 200px;
padding-bottom: 200px;
margin-left: auto;
    margin-right: auto;

background-color: #2F303A;
background-image: linear-gradient(to bottom,
        rgba(56, 47, 58, 0.4),
        rgba(56, 47, 58, 0.4)), url(../images/hero_bg.jpg);
   
}
.hero .container{
    display: flex;
    flex-direction: column;
    align-items: center;
   
}

.hero-title{
    max-width: 696px;
    margin-bottom: 30px;


    font-size: 44px;
    font-weight: 900;
    line-height:1.36;
    text-transform:uppercase;
    color:var(--color-bg-primary);
    letter-spacing: var(--ls-wide);
    text-align: center;
}


.btn-primary {
  min-width: 200px;
    padding: 10px 0px;
    border-radius: 4px;
    border-width: 0;

    
    letter-spacing: var(--ls-wide);
    font-size: 16px;
    font-weight: 700;
    line-height: 1.875;
    color: var(--color-bg-primary);
    box-shadow: 0 4px 4px 0 rgba(0, 0, 0, 0.15);
    background-color: var(--color-accent);

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

    cursor:pointer;  
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: #188ce8;
}



.section{
    padding-top: 94px;
    padding-bottom: 94px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    border: none;
    padding: 0;

    white-space: nowrap;
    clip-path: inset(100%);
    clip: rect(0 0 0 0);
    overflow: hidden;
}

.feature-list{
display: flex;
gap:30px;
}

.feature-item{
    flex-basis:calc((100% - 3*30px)/4)
}

.feature-wrapper {
margin-bottom: 30px;    
padding:25px 100px;

background-color: var(--color-bg-secondary);
border-radius: 4px;
}

.feature-icon {
    width: 70px;
    height: 70px;
}

.feature-title {
margin-bottom: 10px;

    font-size: 14px;
    font-weight: 700;
}

.feature-text {
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.71;
}


.services-list, .team-list{
    display: flex;
    gap: 30px;
}

.services-item {
    position: relative;
}

.services-overlay {
    position: absolute;
    width: 100%;
    bottom: 0;
    left: 0;
    padding: 27px 0px;
    text-align: center;
    background-color: rgba(48, 49, 59,80%);
}

.services-title {
    color: var(--color-bg-primary);
    text-transform: uppercase;
    font-size: 14px;
    font-weight: 700;
}

.section-title {
margin-bottom: 50px;

font-size: 36px;
 font-weight: 700;
 text-align: center;
}

.team{
    background: var(--color-bg-secondary);
}

.team-info {
    padding-top: 30px;
    padding-bottom: 30px;
}

.team-item {
    border-radius: 0 0 4px 4px;

    background-color: var(--color-bg-primary);
    box-shadow: 0 2px 1px 0 rgba(0, 0, 0, 0.2), 0 1px 1px 0 rgba(0, 0, 0, 0.14), 0 1px 3px 0 rgba(0, 0, 0, 0.12);
    
}

.team-title{
margin-bottom: 10px;

font-weight: 500;
text-align: center;
  
}

.team-text{
    margin-bottom: 16px;
text-align: center;
color: var(--color-text-secondary);
}

.social-list{
    display: flex;
    justify-content: center;
    gap:10px;
   
}

.social-link {
    display: flex;
    justify-content: center;
    align-items: center;;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--color-bg-primary);
    transition: background-color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}



.social-link:hover, .social-link:focus {
background-color: var(--color-accent);
}

.social-icon {
    
    width: 20px;
    height:20px;

    fill:var(--color-icon-primary);

    transition: fill 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.social-link:hover .social-icon,
.social-link:focus .social-icon {
    fill:var(--color-bg-primary)
}

.client-list{
    display: flex;
    justify-content: center;
    gap: 30px;
}

.client-link {
    display: flex;
    justify-content: center;
    align-items: center;

    width: 170px;
    height: 92px;

    border-color: var(--color-icon-primary);
    border-style: solid;
    border-width: 1px;
    border-radius: 4px;

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

.client-link:hover,.client-link:focus{
    border-color: var(--color-accent);
}

.client-icon{
    width: 106px;
    height:60px;

    fill:var(--color-icon-primary);

    transition: fill 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.client-link:hover .client-icon,
.client-link:focus .client-icon {
   fill: var(--color-accent);
}

.footer {
    padding-top: 60px;
    padding-bottom: 60px;

    background-color: #2F303A;
}

.footer .logo-link {
    display: inline-block;
    margin-bottom: 28px;
}

.footer>.container {
    display: flex;
    
}
.footer-info {
    margin-right: 70px;
}

.footer-social-link {
    background-color: rgba(255, 255, 255, 0.1);

}

.footer-social-icon {
    fill: var(--color-bg-primary)
}

.logo-footer{
    color: var(--color-bg-primary);
}

.contact{
    font-style: normal;
}

.contact-address{
   margin-bottom: 12px;

    color: var(--color-bg-primary);
    font-size: 14px;
    line-height: 1.71;
}

.contact-item{
    display: flex;
    gap: 10px;
    flex-direction: column;
}

.contact-link{
color: rgba(255, 255, 255, 0.6);
font-size: 14px;
    line-height: 1.71;

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

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


.social{
    padding-top: 12px;
    margin-right: 94px;
}
.footer-title {
    margin-bottom: 20px;

    color: var(--color-bg-primary);
    text-transform: uppercase;
    font-size: 14px;
}

.subscription {
    padding-top: 12px;
}

.subscription-form {
    display: flex;
    gap: 12px;
    

}

.subscription-input {
    width: 358px;
    padding: 15px 16px 15px 16px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    box-shadow: 0 4px 4px 0 rgba(0, 0, 0, 0.15);
    background: transparent;
    transition: border-color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.subscription-input::placeholder {
        line-height: 1.25;
        color: rgba(255, 255, 255, 0.6);
}

.subscription-input:focus {
    border-color: var(--color-accent);
    outline: none;

}

.subscription-button{
    display: flex;
    gap: 10px;
    justify-content: center;
    align-items: center;
}

.subscription-icon{
    width:24px;
    height:24px;
}

.filter-list{
    display: flex;
    gap:8px;
    justify-content: center;
    margin-bottom: 50px;
    
}

.filter-button{
padding: 6px 22px;

border: none;
border-radius: 4px;
cursor: pointer;
    line-height: 1.625;
    text-align: center;
    font-weight: 500;
    background-color: var(--color-bg-secondary);

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

.filter-button:hover, .filter-button:focus {
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
}

.portfolio-list {
    display: flex;
    gap:30px;
    flex-wrap: wrap;
}

.portfolio-link {
    display: block;
    transition: box-shadow 250ms cubic-bezier(0.4, 0, 0.2, 1);
  
}

.portfolio-link:hover,.portfolio-link:focus {
    
    box-shadow: 0px 1px 1px 0px rgba(0, 0, 0, 0.12), 0px 4px 4px 0px rgba(0, 0, 0, 0.06), 1px 4px 6px 0px rgba(0, 0, 0, 0.16);
}

.portfolio-link:hover .portfolio-overlay,.portfolio-link:focus .portfolio-overlay{
    transform: translateY(0);
}

.portfolio-thumb{
    position: relative;
    overflow: hidden;
}

.portfolio-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color:rgba(33, 150, 243, 0.9);
    top: 0;
    left: 0;
    padding: 63px 24px;
    transform: translateY(100%);
    transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.portfolio-desc {
    color: var(--color-bg-primary);
    font-size: 18px;
    line-height: 1.56;
}

.portfolio-info {
    padding: 20px 24px;
    border-bottom:  1px solid #eee;
    border-left: 1px solid #eee;
    border-right: 1px solid #eee;
   
}

.portfolio-title{
    margin-bottom: 4px;

    font-weight: 700;
    font-size: 18px;
    line-height: 2;
    letter-spacing: var(--ls-wide);
    color: var(--color-text-main);
}

.portfolio-text {
        line-height: 1.875;
        color: var(--color-text-secondary);
                     
}

.backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 100;
    background-color: rgba(0, 0, 0, 0.1);
    opacity:1;
    pointer-events: auto;
    visibility: visible;

    transition: opacity 250ms cubic-bezier(0.4, 0, 0.2, 1), visibility 250ms cubic-bezier(0.4, 0, 0.2, 1);

}


.backdrop.is-hidden {
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
}

.backdrop.is-hidden .modal {
    transform: translate(-50%, -50%) scale(0.9);
}

.modal {
    position:absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%) scale(1);;
    width: 528px;
    height:580px;
    padding: 40px;
    border-radius: 4px;
    background-color: var(--color-bg-primary); 
    transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1);

}

.modal-title {
    margin-bottom: 12px;
    font-size: 20px;
}




.modal-buttopn {
    position: absolute;
     top: 8px;
    right: 8px;
    width: 30px;
    height: 30px;
    padding: 0px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 50%;
    border-width: 1px;
    border-color: rgba(0, 0, 0, 0.1);
    background-color: inherit;
    
}
.modal-icon {
    width: 18px;
    height:18px;
    fill:#000;
}

.modal-buttopn:hover>.modal-icon, .modal-buttopn:focus>.modal-icon {
    fill: var(--color-accent);
}

.form-item {
    display: flex;
    flex-direction: column;
    margin-bottom: 10px;
    gap:4px;
    color: var(--color-text-secondary);
    font-size: 12px;
    letter-spacing: 0.01em;;
    
    
}



.form-wrap {
    position: relative;

    
}

.form-input {
    width: 100%;
    padding: 12px 16px 12px 42px;
    border: 1px solid rgba(33, 33, 33, 0.2);
    border-radius: 4px;
    transition: border-color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}



.form-icon {
    position: absolute;
    left:12px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height:18px;
    fill: var(--color-text-main);
    transition: fill 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.form-input:focus{
    border-color: var(--color-accent);
    outline: none;
    
}

.form-input:focus + .form-icon {
fill: var(--color-accent);
}

.form-input.form-input_textarea {
    padding-left: 16px;
    resize: none;
}

.form-item.form-item_textarea {
    margin-bottom: 20px;
}

.form-check {
    display:flex;
    gap: 7px;
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.71429;
    justify-content: center;
    align-items: center;
     cursor: pointer;
     margin-bottom: 26px;
   
}

.form-check_wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    width: 16px;
    height: 15px;
    border-color: var(--color-text-main);
    border-width: 2px;
    border-style: solid;
    border-radius: 2px;
    background-color: var(--color-bg-primary);
    transition: background-color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.form-link {
    text-decoration: underline;
    text-decoration-skip-ink: none;
    color: var(--color-accent);
}

.form-mark  {
width: 11px;
height: 8px;
}

.form-check__input:checked + .form-checkbox_wrap {
    background-color: var(--color-accent);
    border: transparent;

}

.form-check__input:focus-visible+.form-checkbox_wrap {
    outline: 2px solid var(--color-accent);
}


.form-button {
   display: block;
   margin-left: auto;
   margin-right: auto;

}