:root {
  --primary-text-color: #757575;
  --title-text-color: #212121;
  --accent-text-color: #2196f3;
  --accent-second-color: #188ce8;
  --hero-text-color: #ffffff;
  --adress-text-color: rgba(255, 255, 255, 0.6);
  --filtr-text-color: #f5f4fa;
  --footer-background-color: #2f303a;
  --hero-gradient-color:rgba(47, 48, 58, 0.4);
  --command-backgraund-color: #f5f4fa;
  --conteiner-background-color: #e5e5e5;
  --border-header-color: #ececec;
  --border-cards-color:#EEEEEE;
  --social-network-color: #AFB1B8;
  --social-background-color:#44454E;
  --overlay-our-work:rgba(47, 48, 58, 0.8);
  --overlay-hero-modal: rgba(0, 0, 0, 0.2);
  --timing-function:cubic-bezier(0.4, 0, 0.2, 1);
  --transition-durattion:250ms;
  --overlay-filtr-element:rgba(33, 150, 243, 0.9);
  --footer-input-color:rgba(255, 255, 255, 0.3);
  --form-input-color:rgba(33, 33, 33, 0.2);
}

body {
  font-family: Roboto, sans-serif;
  font-weight: 400;
  font-size: 14px;
  line-height: 1.71;
  letter-spacing: 0.03em;
  background-color: var(--hero-text-color);
  color: var(--primary-text-color);
}

/*Утилиты*/
li {
  list-style: none;
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
  margin: 0;
  padding: 0;
}

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

img{
  display: block;
}
 
input{
  margin: 0;
  padding: 0;
}

.conteiner {
  padding-left: 15px;
  padding-right: 15px;
  margin-left: auto;
  margin-right: auto;
  width: 1200px;
}

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

/*Head site*/

.head-site{
border-bottom: 1px solid var(--border-header-color);
}

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

/*Logo*/

.logo {
  display: block;
  
  color: var(--accent-text-color);

  font-family: Raleway;
  font-weight: 700;
  font-size: 26px;
  line-height: 1.19;
}

.studio-first {
  color: var(--title-text-color);
}

/*Navigation*/

.main-nav{
  display: block;
  margin-left: 93px;
}

.site-nav {
display: flex;
}

.site-nav .item {
  display: block;
  margin-right: 50px;
}

.site-nav .item:last-child{
  margin-right: 0;
}

.site-nav a {
  display: block;
  padding-top: 32px;
  padding-bottom: 32px;

  color: var(--title-text-color);

  font-weight: 500;
  line-height: 1.14;
  letter-spacing: 0.02em;

  transition: color var(--transition-durattion) var(--timing-function);
}

.site-nav a:focus,
.site-nav a:hover {
  color: var(--accent-text-color);
}

.current-link{
  position: relative;

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

.current-link:visited {
  color: var(--accent-text-color);
}

.current-link::after{
  content:"";
  position: absolute;
  left: 0;
  margin-top: 28px;
  display: block;
  width: 100%;
  height: 4px;

  background-color: var(--accent-text-color);
  border-radius: 2px;

  transition: transform var(--transition-durattion) var(--timing-function);
}

.site-contact {
display: flex;
align-items: center;
margin-left: auto;
}

.site-contact .item{
margin-right: 30px;
}

.site-contact .item:last-child{
margin-right: 0;
}

.header-contact {
  display: flex;
  align-items: center;
  padding-top: 32px;
  padding-bottom: 32px;

  color: var(--primary-text-color);

  font-weight: 500;
  line-height: 1.14;
  letter-spacing: 0.02em;

  transition: color var(--transition-durattion) var(--timing-function);
}

.icon-contact {
  padding:0;
  margin:0;
  border:0;
  margin-right: 10px;
 
  fill:currentColor;
}

.site-contact a:focus,
.site-contact a:hover {
  color: var(--accent-text-color);
  fill: var(--accent-text-color);
}

/*Hero section*/

.section-hero {
  padding-top: 200px;
  padding-bottom: 200px;
  max-width: 1600px;
  height: 600px;
  margin-left: auto;
  margin-right: auto;

  background-image: linear-gradient(to left, var(--hero-gradient-color), var(--hero-gradient-color)),
    url('../images/img_14.jpg');
  background-repeat: no-repeat;
  background-size: cover;
  background-color: var(--footer-background-color);
}

.hero-part {
  text-align: center;
}

.hero {
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 30px;
  width: 696px;
  
  color: var(--hero-text-color);
  
  font-weight: 900;
  font-size: 44px;
  line-height: 1.36;
  letter-spacing: 0.06em;
  text-align: center;
  text-transform: uppercase;
}

.order {
  border-radius: 4px;
  border: transparent;
  padding: 10px;
  width: 200px;
  text-align: center;

  color: var(--hero-text-color);
  background-color: var(--accent-text-color);
  box-shadow: 0px 4px 4px rgba(0, 0, 0, 0.15);

  font-family: inherit;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.88;
  letter-spacing: 0.06em;
  cursor: pointer;

  transition: background-color var(--transition-durattion) var(--timing-function),
  box-shadow var(--transition-durattion) var(--timing-function);
}

.order:hover {
  background-color: var(--accent-second-color);
}

/*Модальное окно*/

.backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 99;

  background-color: var(--overlay-hero-modal);
  transition: opacity var(--transition-durattion) var(--timing-function);
}

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

.backdrop.is-hidden .modal {
  transform: translate(-50%, -50%) scale(0.7);
  transition: transform var(--transition-durattion) var(--timing-function);
}

.modal {
  position: absolute;
  top: 50%;
  left: 50%;
  padding: 40px;

  min-width: 528px;
  min-height: 581px;
  overflow: visible;

  transform: translate(-50%, -50%) scale(1);
  transition: transform var(--transition-durattion) var(--timing-function);

  background-color: var(--hero-text-color);
  box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.12),
    0px 1px 1px rgba(0, 0, 0, 0.14),
    0px 2px 1px rgba(0, 0, 0, 0.2);
  border-radius: 4px;
}

.order-close {
  position: absolute;
  top: 8px;
  right: 8px;
  cursor: pointer;

  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--filtr-text-color);
  background-color: var(--hero-text-color);

  transition: fill var(--transition-durattion) var(--timing-function);
}

.form-close{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  
  fill: var(--title-text-color);
}

.order-close:focus > .form-close,
.order-close:hover> .form-close{
  fill: var(--accent-text-color);
}

.modal-title{
margin-bottom: 12px;

font-weight: 700;
font-size: 20px;
line-height: 1.15;
text-align: center;

color: var(--title-text-color);
}

.form-order{
  display: flex;
  flex-direction: column;
  margin-left: auto;
  margin-right: auto;
}

.form-label{
  display: block;
  margin-bottom: 4px;

  font-size: 12px;
  line-height: 1.16;
  letter-spacing: 0.01em;

  color: var(--primary-text-color);
}

.form-thumb{
  position: relative;
}

.form-input{
  margin-bottom: 10px;
  padding: 12px 12px 12px 42px;
  
  width: 100%;
  height: 40px;

  border: 1px solid var(--form-input-color);
  border-radius: 4px;
  outline: none;

  transition: border-color var(--transition-durattion) var(--timing-function);
}

.form-icon{
  position: absolute;
  top: 50%;
  left: 15px;
  transform: translateY(-25%);

  fill: var(--title-text-color);
  transition: fill var(--transition-durattion) var(--timing-function);
}

.form-input:focus, 
.form-input:hover,
.form-input:focus ~ .form-icon,
.form-input:hover ~ .form-icon {
  fill: var(--accent-text-color);
  border-color: var(--accent-text-color);
}

.form-textarea{
  padding: 12px 16px;
  margin-bottom: 20px;
  width: 100%;
  height: 120px;
  resize: none;
  outline: none;

  border: 1px solid var(--form-input-color);
  border-radius: 4px;
}

.form-textarea:focus,
.form-textarea:hover {
  border-color: var(--accent-text-color);
}

.form-checkbox{
  display: flex;
  align-items: center;
  margin-right: auto;
  margin-left: auto;
  margin-bottom: 30px;
}

.form-agreement{
  text-decoration: underline;
  color: var(--accent-text-color);
}

.checkbox-hidden{
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  clip-path: inset(100%);
  clip: rect(0 0 0 0);
  overflow: hidden;
}

.checkbox-icon{
  display: block;

  transition: background-color var(--transition-durattion) var(--timing-function),
  background-image var(--transition-durattion) var(--timing-function);

  width: 16px;
  height: 15px;
  margin-right: 7px;
  border: 2px solid var(--title-text-color);
  border-radius: 2px;
} 

.checkbox-hidden:checked + .checkbox-icon{
  border-color: transparent;
  background-color: var(--accent-text-color);
  background-image: url('../images/useer_check.svg');
  background-size: contain;
  background-origin: border-box;
}

.label-checkbox{
  display: inline-block;
  font-family: inherit;
  transition: transform var(--transition-durattion) var(--timing-function);;
}

.checkbox-hidden:focus + .checkbox-icon{
  border: 2px solid var(--accent-text-color);
}

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

/*Peculiarities*/

.visually-hidden{
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  clip-path: inset(100%);
  clip: rect(0 0 0 0);
  overflow: hidden;
}

.item-peculiarities {
  display: flex;
  flex-direction: row;
}

.item-pec {
  width: 270px;
  margin-right: 30px; 
}

.item-pec:last-child {
margin-right: 0;
}

.item-title {
  margin-bottom: 10px;
  width: 270px;

  color: var(--title-text-color);

  font-weight: 700;
  line-height: 1.17;
  text-transform: uppercase;
}

.item-pec::before {
  display: block;
  content: "";
  width: 270px;
  height: 120px;
  margin-bottom: 30px;
  border-radius: 4px;

  background-color: var(--command-backgraund-color);
  
  background-repeat: no-repeat;
  background-position: center;
}

.icon-antenna::before {
  background-image: url('../images/antenna.svg');
}

.icon-clock::before {
  background-image: url('../images/clock.svg');
}

.icon-diagram::before {
  background-image: url('../images/diagram.svg');
}

.icon-astronaut::before {
  background-image: url('../images/astronaut.svg');
}

/*Our work*/

.work{
  padding-top: 0px;
}

.title {
  margin-bottom: 50px;

  color: var(--title-text-color);

  font-weight: 700;
  font-size: 36px;
  line-height: 1.16;
  text-align: center;
}

.work-exemples{
  display: flex;
}

.exemple{
  position: relative;

  margin-right:30px;
}

.exemple:last-child{
  margin-right: 0;
}

.overlay-exemple{
  position: absolute;
  bottom:0;
  left: 0;
  width: 100%;
  height: 70px;
  
  background-color: var(--overlay-our-work);
}

.work-title{
  padding: 27px 10px;

  font-weight: 700;
  line-height: 1.14;
  text-align: center;
  text-transform: uppercase;

  color: var(--hero-text-color);
}

/*Our command*/

.command {
  background-color: var(--command-backgraund-color);
}

.foto-command{
  display: flex;
}

.foto{
  margin-right: 30px;
  font-size: 0;

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

  border-radius: 0px 0px 4px 4px;
}

.foto-description{
  padding-top: 30px;
  padding-bottom: 30px;
  padding-left: 10px;
  padding-right: 10px;
}

.foto:last-child {
  margin-right: 0;
}

.partner {
  margin-bottom: 10px;

  color: var(--title-text-color);

  font-weight: 500;
  font-size: 16px;
  line-height: 1.18;
  text-align: center; 
}

.profesion {  
  font-size: 16px;
  line-height: 1.18;
  text-align: center;
  margin-bottom: 16px;
}

.icon-item{
  display: flex;
  justify-content:center;
  padding: 0;
}

.icon-item .item{
  margin-right: 10px;
}

.icon-item .item:last-child{
  margin-right: 0px;
}

.item-link{
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border:0;

  background-color: var(--hero-text-color);
  color: var(--social-network-color);

  transition: background-color var(--transition-durattion) var(--timing-function),
  color var(--transition-durattion) var(--timing-function);
}

.social-icon{
  fill:currentColor;
}

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

.item-clients{
  display: flex;
}

.item-clients .item{
margin-right: 30px;
}

.item-clients .item:last-child {
  margin-right: 0px;
}

.link-client{
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0;
  width: 170px;
  height: 92px;
  border: 1px solid var(--social-network-color);
  border-radius: 4px;

  fill: var(--social-network-color);
  background-color:var(--hero-text-color);
  cursor: pointer;

  transition: fill var(--transition-durattion) var(--timing-function),
  border var(--transition-durattion) var(--timing-function);
}

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

.link-client:hover,
.link-client:focus{
  fill: var(--accent-text-color);
  border:1px solid var(--accent-text-color);
}

/*Footer/*
/*Address*/

footer {
  background-color: var(--footer-background-color);
}

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

.footer-nav .logo{
  margin-bottom: 20px;
}

.footer-list{
  display: flex; 
  align-items: baseline;
}

.footer-part{
  margin-right: 70px;
}

.studio-second {
  color: var(--hero-text-color);
}

.contact {
  display:flex;
  flex-direction: column;
  font-style: inherit;
  
  color: var(--hero-text-color);
}

.contact a {
  display: block;
  margin-bottom: 9px;

  color: var(--adress-text-color);

  transition: opasity var(--transition-durattion) var(--timing-function);
}

.contact a:hover {
  opacity: 0.6;
}

.contact a:last-child{
margin-bottom: 0;
}

.contact p{
margin-bottom: 9px;
}

.footer-social{
  margin-right: 93px;
}

.social-title {
  margin-bottom: 20px;
  
  color: var(--hero-text-color);

  font-weight: 700;
  line-height: 1.14;
  text-transform: uppercase;
}

.second{
  background-color: var(--social-background-color);
  color: var(--hero-text-color);
}

.social-icon-second{
  fill: var(--hero-text-color);
}

.footer-email{
  margin-right: 12px;
}

.user-email{
  display: flex;
  align-items: flex-end;
}

.user-email input{
  display: block;
  padding: 15px 16px;

  width: 358px;
  height: 50px;
  font-family: inherit;
  font-size: 16px;
  line-height: 1.25;

  background-color: var(--footer-background-color);

  border: 1px solid var(--footer-input-color);
  border-radius: 4px;

  transition: border var(--transition-durattion) var(--timing-function);
}

.user-email input:focus{
border: drop-shadow(0px 4px 4px rgba(0, 0, 0, 0.15));
}

.footer-input{
  margin-right: 12px;

  font-family: inherit;
  color: var(--primary-text-color);
}

.footer-subscribe{
  position: relative;
  padding: 10px 29px;

  width: 200px;
  height: 50px;
  box-shadow: 0px 4px 4px rgba(0, 0, 0, 0.15);
  border-radius: 4px;
  border: transparent;

  font-weight: 700;
  font-size: 16px;
  line-height: 1.88;
  letter-spacing: 0.06em;
  text-align: start;
  cursor: pointer;
  
  color: var(--hero-text-color);
  background: var(--accent-text-color);
  transition: background-color var(--transition-durattion) var(--timing-function);
}
  
.footer-subscribe:hover {
  background-color: var(--accent-second-color);
}

.footer-subscribe::before{
  position: absolute;
  content: " ";
  top: 13px;
  right: 28px;

  width: 24px;
  height: 24px;
  background-image: url('../images/icon-fly.svg');
}

/*Portfolio*/

.filtr-choice {
  display: flex;
  justify-content: center;
  margin-bottom: 50px;
}

.filtr-item{
  display: block;
  margin-right: 8px;
}

.filtr-item:last-child {
  margin-right: 0;
}

.filtr-all {
  padding: 6px 22px;
  border-radius: 4px;
  border: var(--accent-text-color);

  background-color: var(--accent-text-color);
  color: var(--hero-text-color);
  box-shadow: 0px 3px 1px rgba(0, 0, 0, 0.1),
  0px 1px 2px rgba(0, 0, 0, 0.08),
  0px 2px 2px rgba(0, 0, 0, 0.12);
 
  font-family: inherit;
  letter-spacing: inherit;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.62;
  text-align: center;
  cursor: pointer;
}

.filtr {
  padding: 6px 22px;
  border-radius: 4px;
  border: var(--filtr-text-color);

  background-color: var(--filtr-text-color);
  color: var(--title-text-color);

  font-family: inherit;
  letter-spacing: inherit;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.62;
  text-align: center;
  cursor: pointer;

  transition: background-color var(--transition-durattion) var(--timing-function),
  color var(--transition-durattion) var(--timing-function),
  box-shadow var(--transition-durattion) var(--timing-function);
}

.filtr:hover {
  background-color: var(--accent-text-color);
  color: var(--hero-text-color);
  box-shadow: 0px 3px 1px rgba(0, 0, 0, 0.1),
  0px 1px 2px rgba(0, 0, 0, 0.08),
  0px 2px 2px rgba(0, 0, 0, 0.12);
}

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

  color: var(--title-text-color);

  font-weight: 700;
  font-size: 18px;
  line-height: 2;
  letter-spacing: 0.06em;
}

.filtr-element{
padding-top: 20px;
padding-bottom: 20px;
padding-left: 24px;
padding-right: 24px;

border-right: 1px solid var(--border-cards-color);
border-left: 1px solid var(--border-cards-color);
border-bottom: 1px solid var(--border-cards-color);
}

.filtr-list {
  color: var(--primary-text-color);

  font-size: 16px;
  line-height: 1.88;

  transition: transform var(--transition-durattion) var(--timing-function),
  opasity var(--transition-durattion) var(--timing-function);
}

.filtr-list:focus,
.filtr-list:hover {
  opacity: 0.6;
}

.filtr-part{
display: flex;
flex-wrap: wrap;
}

.part-item{
display: inline-block;
width: 370px;
margin-right: 30px;
margin-bottom: 30px;
}

.part-item:nth-child(3n){
margin-right: 0;
}

.part-item:nth-child(n+7){
margin-bottom: 0;
}

.part-item-link{
  display: block;

  transition: box-shadow var(--transition-durattion) var(--timing-function);
}

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

.filtr-thumb{
position: relative;

overflow: hidden;
}

.part-item-link:hover .overlay-filtr-element{
transform: translateY(-100%);
}

.overlay-filtr-element{
  position: absolute;
  left: 0;
  bottom: -100%;
  width: 100%;
  height: 100%;

  transform: translateY(0);
  transition: transform var(--transition-durattion) var(--timing-function);
  
  background: var(--overlay-filtr-element);
}

.overlay-element{
  padding: 63px 24px;

  font-size: 18px;
  line-height: 1.55;
   
  color: var(--hero-text-color);
  
}