:root {
  --primary-color: #ffffff;
  --secondary-color: #8491A0;
  --tertiary-color: #C5C5C5;
  --card-color: #2A2A2A;
  --background-color: #161513;
  --background-color-light: #EEFFFF;
  --header-color: #222222;
  --footer-color: #191919;

  --primary-gradient: linear-gradient(#FF8660, #9A33FF);
  --orange-gradient: linear-gradient(#FF8660, #D5491D);
  --blue-gradient: linear-gradient(#5BADFF, #1373D1);


  --header-height: 60px;
  --container-side-padding: 20px;
}

@font-face {
  font-family: poppins;
  src: url(../fonts/Poppins/Poppins-Regular.ttf);
  font-weight: 400;
}

@font-face {
  font-family: poppins;
  src: url(../fonts/Poppins/Poppins-Bold.ttf);
  font-weight: 700;
}

@font-face {
  font-family: poppins;
  src: url(../fonts/Poppins/Poppins-SemiBold.ttf);
  font-weight: 600;
}

@font-face {
  font-family: poppins;
  src: url(../fonts/Poppins/Poppins-ExtraBold.ttf);
  font-weight: 900;
}

@font-face {
  font-family: plus-jakarta-sans;
  src: url(../fonts/Plus_Jakarta_Sans/static/PlusJakartaSans-SemiBold.ttf);
  font-weight: 600;
}

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

html {
  scroll-behavior: smooth;
}

.body {
  margin: 0;
  padding: 0;
  font-family: poppins, Arial, sans-serif;
  color: var(--primary-color);
  background-color: var(--background-color);
}

.body--light {
  color: var(--background-color);
  background-color: var(--background-color-light);
}

a {
  display: inline-block;
  text-decoration: none;
}

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

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

.container {
  margin: 0 auto;
  padding: 0 var(--container-side-padding);
  max-width: 1160px;
}

.header {
  height: var(--header-height);
  background-color: var(--header-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.body--light .header {
  background-color: var(--secondary-color);
}

.header__wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.logo {
  width: 120px;
}

.logo .logo__link img {
  width: 100%;
}

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

.nav__item {
  display: inline-block;
}

.nav__item {
  margin-right: 30px;
}

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

.nav__link {
  color: var(--primary-color);
  position: relative;
  font-size: 15px;
  font-family: plus-jakarta-sans, sans-serif;
}

.nav__link:after {
  position: absolute;
  content: "";
  width: 0;
  height: 3px;
  left: 0;
  bottom: -4px;
  background-color: var(--primary-color);
  transition: width 0.3s;
}

.nav__link:hover:after {
  width: 100%;
}

.nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav__button {
  display: none;
}

.hero__wrapper {
  max-width: 670px;
  margin: 0 auto;
  padding: 100px 0;
}

.hero__title {
  margin: 40px 0;
}

.hero__description {
  margin: 0 0 54px 0;
}

.hero__avatar {
  width: 212px;
  height: 212px;
  border-radius: 50%;
  background: var(--primary-gradient);
  margin: 0 auto;
  overflow: hidden;
}

.hero__avatar img {
  width: 100%;
  user-select: none;
  -webkit-user-drag: none;
}

.hero__title {
  font-size: 55px;
  text-align: center;
}

.hero__gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__description {
  text-align: center;
  font-size: 18px;
  color: var(--secondary-color);
}

.hero__buttons {
  text-align: center;
  display: flex;
  justify-content: center;
  gap: 10px;
}

.btn {
  color: var(--primary-color);
  font-size: 22px;
  font-weight: 600;
  padding: 16px 30px;
  border: 2px solid var(--primary-color);
  border-radius: 50px;
  transition: color, background-color 0.3s;
}

.btn:hover {
  color: var(--background-color);
  background-color: var(--primary-color);
}

.body--light .btn {
  color: var(--background-color);
  border: 2px solid var(--background-color);
}

.body--light .btn:hover {
  color: var(--primary-color);
  background-color: var(--background-color);
}

.experience {
  margin: 88px 0 48px;
  text-align: center;
  text-transform: uppercase;
  font-size: 20px;
  font-weight: 600;
  color: var(--tertiary-color);
}

.body--light .experience {
  color: var(--footer-color);
}

.experience__wrapper {
  text-align: center;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 40px;
}

.experience__box {
  width: 42px;
  display: inline-block;
}

.experience__box img {
  width: 100%;
  user-select: none;
  -webkit-user-drag: none;

}

.experience__box img:hover {
  filter: drop-shadow(1px 0 10px var(--primary-color));
}

.body--light .experience__box img:hover {
  filter: drop-shadow(1px 0 10px var(--background-color));
}

.section-title {
  text-transform: uppercase;
  text-align: center;
  font-weight: 900;
  font-size: 35px;
  margin-bottom: 26px;
}

.section-title--orange {
  background: var(--orange-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.projects {
  padding-bottom: 90px;
}

.projects__wrapper {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.projects__description {
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.projects__card {
  border-radius: 18px;
  overflow: hidden;
  background-color: var(--card-color);
  transition: box-shadow 0.3s;
}

.body--light .projects__card {
  background-color: var(--secondary-color);
}

.projects__card:hover {
  box-shadow: 0 0 10px 5px rgba(132,145,160,1);
}

.body--light .projects__card:hover {
  box-shadow: 0 0 10px 5px var(--card-color);
}

.projects__image {
  position: relative;
}

.projects__image::after {
  position: absolute;
  content: "";
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.2);
  inset: 0;
}

.projects__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.projects__subtitle {
  font-size: 12px;
  text-transform: uppercase;
  font-weight: 900;
  color: var(--tertiary-color);
}

.body--light .projects__subtitle {
  color: var(--primary-color);
}

.projects__title {
  font-size: 20px;
  text-transform: uppercase;
  font-weight: 900;
  color: var(--primary-color);
}

.projects__arrow img {
  width: 15px;
  height: 15px;
  -webkit-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  transform: rotate(45deg);
}

.projects__technology {
  max-height: 30px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
}

.projects__technology img {
  max-height: 100%;
  max-width: 24px;
  margin-right: 10px;
}

.footer {
  background-color: var(--footer-color);
  padding: 30px 0 80px;
  font-size: 14px;
  color: var(--tertiary-color);
}

.body--light .footer {
  background-color: var(--secondary-color);
  color: var(--primary-color);
}

.footer__header {
  font-weight: 700;
  font-size: 24px;
  color: var(--primary-color);
}


.footer__mail {
  font-size: 14px;
  color: var(--tertiary-color);
  display: flex;
  align-items: center;
  margin-top: 22px;
}

.body--light .footer__mail {
  color: var(--primary-color);
}

.footer__mail:hover {
  text-decoration: underline;
}

.footer__mail-logo {
  width: 16px;
  margin-right: 10px;
}

.footer__social {
  margin-top: 40px;
}

.footer__social-link {
  width: 18px;
  height: 18px;
  margin-right: 10px;
}

.theme {
  position: relative;
  border: none;
  border-radius: 20px;
  width: 46px;
  height: 28px;
  cursor: pointer;
  margin: 0;
  padding: 0;
}

.theme::after {
  content: "\263E";
  position: absolute;
  width: 28px;
  height: 28px;
  background: var(--orange-gradient);
  border-radius: 50%;
  left: 0;
  top: 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  font-size: 16px;
}

.body--light .theme::after {
  content: "\263C";
  right: 0;
  left: initial;
}

@media screen and (max-width: 600px) {
  .nav__list {
    position: absolute;
    width: 100%;
    background-color: var(--header-color);
    top: 60px;
    left: -100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 20px var(--container-side-padding);
    z-index: 10;
    transition: left 0.3s;
  }

  .nav--mobile .nav__list {
    left: 0;
  }

  .body--light .nav__list {
    background-color: var(--secondary-color);
  }

  .nav__button {
    position: relative;
    display: flex;
    border: 2px solid var(--primary-color);
    border-radius: 4px;
    width: 30px;
    height: 30px;
    padding: 4px;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
    transition: background-color 0.3s;
  }

  .nav--mobile .nav__button {
    display: block;
  }

  .nav__button:hover {
    background-color: var(--secondary-color);
  }

  .body--light .nav__button:hover {
    background-color: var(--card-color);
  }

  .nav__button:focus-visible {
    outline: -webkit-focus-ring-color auto 1px;
    outline-offset: 1px;
  }

  .bar {
    width: 100%;
    border-radius: 4px;
    height: 4px;
    background-color: var(--primary-color);
  }

  .nav--mobile .bar--1 {
    position: absolute;
    transform-origin: left;
    top: 2px;
    transform: rotate(45deg);
  }

  .nav--mobile .bar--2 {
    display: none;
  }

  .nav--mobile .bar--3 {
    position: absolute;
    transform-origin: left;
    bottom: 2px;
    transform: rotate(-45deg);
  }

  .hero__title {
    font-size: 40px;
  }

  .btn {
    font-size: 18px;
    padding: 12px 24px;
  }

  .projects__wrapper {
    grid-template-columns: repeat(1, 1fr);
  }
}