:root {
  --accent-color: #212121;
  --text-color: #000;
  --background-color: #fff;
  --additional-text-color: #757575;
  --background-color2: #2f303a;
  --button-background: #f5f4fa;
  --WebStudio-color: #2196f3;
  --companys-color: #afb1b8;
  --line-color: #ececec;
}

body {
  font-family: Roboto;
  letter-spacing: 0.03em;
  list-style: none;
}

.container {
  /* outline: solid red; */
  width: 1200px;
  margin: 0 auto;
  padding-left: 15px;
  padding-right: 15px;
}

section{
  animation-name: section-invisible;
  animation-duration: 3000ms;
  animation-iteration-count: 1;
  opacity: 1;
}

@keyframes section-invisible {
 0%{
  opacity: 0;
 }

 50%{
  opacity: 0;
 }

 100%{
  opacity: 1;
 }
}

.portfolio{
  position: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  animation-name: go-box;
  animation-duration: 4000ms;
  animation-iteration-count: 1;
  opacity: 0;
  top: 0px;
  left: 0px;
  right: 0px;
  bottom: 0px;
}

@keyframes go-box {

  0%{
    opacity: 0;
    transform: translate(-500px, 0px);
  }

  50%{
    opacity: 1;
    transform: translate(0px, 0px);
  }

  100%{
    opacity: 0;
    transform: translate(500px, 0px);
  }
}

.portfolio-title{
  font-family: Roboto;
  color: var(--text-color);
  font-size: 100px;
  font-weight: 700;
  line-height: 1.38;
  /* animation-name: run-title;
  animation-duration: 4000ms;
  animation-iteration-count: 1; */
  opacity: 1;
}

/* .portfolio-title2{
  font-family: Roboto;
  color: var(--text-color);
  font-size: 100px;
  font-weight: 700;
  line-height: 1.38;
  animation-name: run-title2;
  animation-duration: 4000ms;
  animation-iteration-count: 1;
}

@keyframes run-title2{
  0%{
    opacity: 0;
    transform: translate(-700px, 0px);
  }

  50%{
    opacity: 1;
    
    transform: translate(0px, 0px);
  }

  100%{
    opacity: 0;
    transform: translate(700px, 0px);
  }
} */

*:focus {
  outline: none;
}

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

/*header*/

.header {
  padding-top: 24px;
  padding-bottom: 25px;
  border-bottom: solid var(--line-color);
}

.header-title1 {
  font-family: Raleway;
  color: var(--WebStudio-color);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.38;
}

.header-title2 {
  font-family: Raleway;
  color: var(--text-color);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.38;
}

.header-link:focus,
.header-link:hover {
  outline: none;
  color: var(--WebStudio-color);
}

.header-contact:focus,
.header-contact:hover {
  outline: none;
  color: var(--WebStudio-color);
}

.header-link {
  /* transition-timing-function: cubic-bezier(1, 0.99, 0, -0.01); */
  transition-duration: 250ms;
  transition-property: color;
  transition-delay: cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  color: var(--accent-color);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.14;
  letter-spacing: 0.02em;
  cursor: pointer;
}

.header-link::after {
  width: 100%;
  content: "";
  height: 4px;
  opacity: 0;
  position: absolute;
  top: 48px;
  transition-duration: 400ms;
  transition-delay: 0s;
  background-color: var(--WebStudio-color);
  border-radius: 2px;
  display: block;
}

.header-link:hover::after {
  opacity: 1;
  /* transform: scaleX(1); */
}

.header-contact {
  color: var(--additional-text-color);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.14;
  letter-spacing: 0.02em;
  cursor: pointer;
}

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

.header-list {
  display: flex;
  align-items: center;
  gap: 50px;
}

.header-navigation {
  margin-right: 344px;
  margin-left: auto;
}

.header-pictures {
  width: 10px;
  height: 16px;
  transition-duration: 250ms;
  transition-property: fill;
  transition-delay: cubic-bezier(0.4, 0, 0.2, 1);
  fill: var(--additional-text-color);
  margin-right: 10px;
}

.header-contact:hover {
  color: var(--WebStudio-color);
}

.header-item:hover .header-pictures {
  fill: var(--WebStudio-color);
}

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

.header-container .header-list .header-item {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.header-contact {
  transition-duration: 250ms;
  transition-property: color;
  transition-delay: cubic-bezier(0.4, 0, 0.2, 1);
}

.header-links {
  display: flex;
  flex-wrap: nowrap;
}

/* .line{
  margin-top: 28px;
  width: 48px;
height: 4px;
border-radius: 2px;
background: var(--WebStudio-color);
} */

/* about */

.about {
  padding-top: 94px;
  padding-bottom: 25px;
}

.about-list {
  display: flex;
  gap: 8px;
  justify-content: center;
}

/* .about-button:focus  {
  color: var(--background-col);
  background: var(--WebStudio-color);
  box-shadow: 0px 2px 2px 0px rgba(0, 0, 0, 0.12),
    0px 1px 2px 0px rgba(0, 0, 0, 0.08), 0px 3px 1px 0px rgba(0, 0, 0, 0.1);
} */

.about-button {
  transition-duration: 250ms;
  transition-property: color, box-shadaw;
  transition-delay: cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--accent-color);
  padding: 6px 25px;
  text-align: center;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.62;
  border-radius: 4px;
  background: var(--button-background);
}

.about-button:hover {
  color: var(--background-color);
  background: var(--WebStudio-color);
  box-shadow: 0px 2px 2px 0px rgba(0, 0, 0, 0.12),
    0px 1px 2px 0px rgba(0, 0, 0, 0.08), 0px 3px 1px 0px rgba(0, 0, 0, 0.1);
}

.about-button:focus .about-link {
  color: var(--background-col);
  background: var(--WebStudio-color);
  box-shadow: 0px 2px 2px 0px rgba(0, 0, 0, 0.12),
    0px 1px 2px 0px rgba(0, 0, 0, 0.08), 0px 3px 1px 0px rgba(0, 0, 0, 0.1);
}

/* hero */

.hero {
  padding-top: 25px;
  padding-bottom: 94px;
  flex-direction: row-reverse;
}

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

.hero-article {
  margin-right: auto;
  height: 384px;
  position: relative;
  background-color: var(--background-col);
}

.hero-img {
  margin-bottom: 20px;
}

img {
  display: block;
  width: 100%;
}

.hero-box-text {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 300ms;
  transition-property: transform;
  transform-origin: bottom;
  position: absolute;
  top: 110px;
  right: 0;
  left: 0;
  height: 294px;
  opacity: 0;
  background: rgba(33, 150, 243, 0.9);
  padding: 63px 24px 63px 24px;
  /* animation-name: text-box;
  animation-duration: 400ms;
  animation-iteration-count: 1; */
}

/* @keyframes text-box{

0%{
  opacity: 0;
}

25%{
  opacity: 0.25;
  transform: translate(-0px, -20px);
}

50%{
  opacity: 0.5;
  transform: translate(-0px, -50px);
}

75%{
  opacity: 0.75;
  transform: translate(-0px, -75px);
}

100%{
  opacity: 1;
  transform: translate(-0px, -110px);
}

} */

.box-text {
  color: var(--background-color);
  font-family: Roboto;
  font-size: 18px;
  font-style: normal;
  font-weight: 400;
  line-height: 28px; /* 155.556% */
  letter-spacing: 0.54px;
}

.hero-item:hover .hero-box-text {
  /* animation-name: text-box;
  animation-duration: 400ms;
  animation-iteration-count: 1;
  opacity: 1;
  top: 0; */
  opacity: 1;
  transform: translate(-0px, -110px);
}

.corobka{
  position: absolute;
  top: 0px;
  right: 0px;
  left: 0px;
  bottom: 100px;
  overflow: hidden;
  z-index: 2;
}

.hero-title {
  color: var(--accent-color);
  font-size: 18px;
  font-weight: 700;
  line-height: 2;
  letter-spacing: 0.06em;
  margin-left: 24px;
}

.hero-item:focus {
  border-color: #2196f3;
  border-radius: 2px;
}

.hero-text {
  color: var(--additional-text-color);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.87;
  margin-top: 4px;
  margin-left: 24px;
}

.hero-item {
  padding-bottom: 20px;
  /* width: 370px; */
  /* flex-basis: calc((100% - (2 * 30px)) / 3); */
  flex-basis: calc((100% / 3) - 30px);
  border: 1px solid #eee;
  border-radius: 0px 0px 4px 4px;
  background: var(--background-col);
}

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

/*footer*/

.footer {
  /* display: flex;
  justify-content: space-between; */
  background-color: var(--background-color2);
  padding-top: 60px;
  padding-bottom: 60px;
  padding-right: 215px;
}

.footer-title1 {
  color: var(--WebStudio-color);
  font-family: Raleway;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.38;
}

.footer-title2 {
  color: var(--background-color);
  font-family: Raleway;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.38;
}

.footer-list2 {
  display: flex;
  justify-content: center;
}

.footer-text {
  color: var(--background-color);
  font-family: Roboto;
  font-size: 14px;
  font-style: normal;
  font-weight: 700;
  line-height: normal;
  letter-spacing: 0.42px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-item {
  margin-top: 9px;
}

.footer-link {
  color: var(--additional-text-color);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.71;
}

.footer-address {
  color: var(--background-color);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.71;
  margin-top: 20px;
}

.footer-pictures-container2 {
  margin-left: 70px;
}

.footer-container {
  display: flex;
}

.footer-pictures-item {
  transition-duration: 250ms;
  transition-property: background-color;
  transition-delay: cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 100%;
  width: 44px;
  height: 44px;
  justify-content: center;
  align-items: center;
  margin-right: 10px;
}

.footer-pictures-item:hover {
  background-color: var(--WebStudio-color);
}

.footer-pectures {
  width: 20px;
  height: 20px;
  fill: var(--background-color);
}

.footer-picture-list {
  display: flex;
}

.footer-pictures-item {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* .footer-pictures-link:focus {
  background-color: var(--WebStudio-color);
  fill: var(--background-color);
} */

.footer-pictures-link {
  width: 44px;
  height: 44px;
  border-radius: 100%;
  padding: 12px;
}

.sing-up {
  margin-left: 93px;
}

.sing-up-titele {
  margin-bottom: 20px;
  color: #fff;
  font-family: Roboto;
  font-size: 14px;
  font-style: normal;
  font-weight: 700;
  line-height: normal;
  letter-spacing: 0.42px;
  text-transform: uppercase;
}

.sing-up-table {
  margin-right: 12px;
  width: 358px;
  height: 50px;
  padding-left: 16px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(33, 150, 243, 0);
  box-shadow: 0px 4px 4px 0px rgba(0, 0, 0, 0.15);
}

.sing-up-button {
  font-size: 16px;
  font-style: normal;
  font-weight: 700;
  line-height: 30px;
  letter-spacing: 0.96px;
  padding-left: 28px;
  padding-right: 28px;
  padding-top: 10px;
  padding-bottom: 10px;
  color: #fff;
  width: 200px;
  height: 50px;
  border-radius: 4px;
  background: var(--WebStudio-color);
  box-shadow: 0px 4px 4px 0px rgba(0, 0, 0, 0.15);
}
.sing-up-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.sing-up-picture {
  width: 24px;
  height: 24px;
}

.sing-up-text {
  margin-right: 10px;
  /* color: #fff;
  text-align: center;
  font-family: Roboto;
  font-size: 16px;
  font-style: normal;
  font-weight: 700;
  line-height: 30px;
  letter-spacing: 0.96px; */
}