@import url("https://fonts.cdnfonts.com/css/cocogoose");
@import url("https://fonts.cdnfonts.com/css/Lato");

html {
  scroll-behavior: smooth;
}

:root {
  --primary: #d3d3d3;
  --secondary: #ec5242;
  --text-color: #272a31;
  --background: rgb(230 230 230 / 47.9%);
  --weight: bold;
}

* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
  overflow-x: hidden;
}

.d-flex {
  display: flex;
}

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

body {
  width: 100%;
  min-height: 100vh;
  font-family: 'COCOGOOSE', sans-serif;
  overflow-x: hidden;
}

h2 {
  font-size: 24px;
  font-weight: 600;
  line-height: 32px;
  padding: 32px;
}

header {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  font-family: inherit;
  z-index: 4;
}

header .media {
  display: none;
}

.Hamburger .show-menu-btn {
  position: fixed;
  top: 15px;
  left: 24px;
  width: 32px;
  z-index: 2;
}

.Hamburger .close-menu-btn {
  display: none;
  position: fixed;
  top: 36px;
  right: 36px;
  width: 24px;
  z-index: 3;
}

nav .logo {
  display: none;
  width: 120px;
  height: auto;
  cursor: pointer;
}

nav .logo img {
  width: 100%;
  height: auto;
}

nav .nav-menu {
  visibility: hidden;
  transform: translateY(-100%);
}

.partners-list li {
  margin: 1rem;
  width: 150px;
}

.partners-list li img {
  width: 100%;
  color: var(--primary);
  cursor: pointer;
}

.conf-image li {
  margin: 1.2rem 1rem 1rem;
  width: 90%;
  max-width: 580px;
  height: 300px;
  position: relative;
  cursor: pointer;
}

nav .nav-menu li:last-child {
  padding: 4px 14px;
  color: var(--secondary);
  border: 5px solid var(--secondary);
}

.contact-info a {
  color: var(--text-color);
  font-size: 18px;
  font-family: "Lato", sans-serif;
  font-weight: var(--weight);
  line-height: 30px;
}

.nav-bar {
  background-color: rgb(226 226 226);
  height: 55px;
}

nav .nav-menu li a {
  color: var(--text-color);
  text-decoration: none;
  font-size: 18px;
  transition: all 0.5s ease-in;
}

nav .nav-menu li a:hover {
  color: var(--secondary);
  cursor: pointer;
}

nav .nav-menu.open,
nav .nav-menu.hide {
  visibility: visible;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2;
  transition: all 1s ease-in-out;
  transform: translateY(0%);
  width: 100%;
  height: 100%;
  padding-left: 28px;
  padding-top: 62px;
  background-color: var(--primary);
}

nav .nav-menu.hide {
  visibility: hidden;
  transform: translateY(-100%);
  height: 10px;
}

nav .nav-menu.open li,
nav .nav-menu.hide li {
  margin: 12px;
}

nav .nav-menu.open li a,
nav .nav-menu.hide li a {
  font-size: 30px;
  line-height: 44px;
  font-weight: 600;
  text-decoration: none;
  color: var(--text-color);
}

main {
  width: 100%;
  font-family: "Cocogoose", sans-serif;
}

ul {
  list-style: none;
}

.home-section {
  padding: 80px 24px 0;
  background-color: var(--primary);
  opacity: 0.9;
  margin: 0 auto;
  text-align: center;
  background-image: linear-gradient(rgb(238 238 238 / 47.9%), rgb(235 235 235 / 52.1%)), url("../images/about-img.png");
  background-position: top center;
  background-size: cover;
  background-repeat: no-repeat;
}

.title-home-section {
  color: var(--secondary);
}

.title-home-section h2 {
  font-size: 30px;
  font-weight: 400;
  line-height: 52px;
  padding: 12px 0;
}

.title-home-section h1 {
  font-size: 38px;
  font-weight: var(--weight);
  line-height: 60px;
  color: var(--seconderyColor);
  margin: 10px 0;
}

article h4 {
  background-color: rgb(230 230 230 / 47.9%);
  border: 3px solid rgb(158 158 158 / 74%);
  font-weight: var(--weight);
  color: var(--text-color);
  padding: 20px;
  margin: 60px auto 30px;
  font-size: 0.99rem;
  text-align: center;
  line-height: 30px;
}

.contact-info {
  width: 80%;
  margin: 0 auto;
  padding: 20px 0 40px;
  text-align: center;
}

.contact-info p {
  color: var(--text-color);
  font-size: 16px;
  line-height: 26px;
}

.contact-info .link {
  margin: 10px;
}

.program-overview {
  width: 100%;
  flex-direction: column;
  color: var(--text-color);
  background-color: var(--background);
  text-align: center;
}

.program-overview h2 {
  width: 80%;
  font-family: "Lato", sans-serif;
}

.program-overview h2::after {
  content: " ";
  display: block;
  max-width: 58px;
  height: 3px;
  margin: 14px auto 0;
  background-color: var(--secondary);
}

.program-overview p {
  width: 85%;
  max-width: 700px;
  padding: 32px;
  font-size: 18px;
  text-align: center;
  line-height: 26px;
  font-family: 'COCOGOOSE', sans-serif;
}

footer .logo {
  height: 7.5rem;
  width: 7rem;
  margin: 0 1rem;
  flex-shrink: 0;
}

footer .logo img {
  width: 100%;
  height: auto;
  color: var(--text-color);
  cursor: pointer;
}

.conf-image li img {
  width: 100%;
  height: 95%;
  color: var(--primary);
}

.program-overview .logo {
  width: 100%;
  max-width: 580px;
  height: 240px;
  border: 2px solid var(--primary);
  padding: 15px 20px;
  margin: 20px auto;
  text-align: center;
  cursor: pointer;
  background-color: #fff;
}

.program-overview .logo img {
  width: 200px;
  height: auto;
}

.program-overview .line {
  content: " ";
  display: block;
  width: 100%;
  height: 2px;
  margin: 10px 0;
  background-color: var(--primary);
}

.conference {
  width: 100%;
  text-align: center;
  background-color: var(--background);
}

.conference h2 {
  font-size: 26px;
  font-family: 'Lato', sans-serif;
  padding: 32px 0 0;
}

.conference h2::after {
  content: " ";
  display: block;
  max-width: 68px;
  height: 3px;
  margin: 14px auto 0;
  background-color: var(--secondary);
}

.conference p {
  width: 85%;
  max-width: 700px;
  padding: 32px;
  margin: 0 auto;
  font-size: 0.99rem;
  text-align: center;
  line-height: 26px;
}

.conf-image {
  flex-direction: column;
  width: 100%;
  margin: 2rem auto;
  background-color: #d3d3d3;
}

.conf-image li .background-img {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  background-color: var(--secondary);
  opacity: 0.5;
}

.conf-image li .text {
  text-align: center;
  color: #fff;
  font-size: 30px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
}

.partners-section {
  width: 100%;
  background-color: var(--text-color);
  opacity: 0.9;
  padding: 3rem 0;
}

.partners-section h2 {
  color: var(--primary);
  text-align: center;
  font-family: 'Lato', sans-serif;
}

.partners-section h2::after {
  content: " ";
  display: block;
  max-width: 38px;
  height: 2px;
  margin: 14px auto 0;
  background-color: var(--secondary);
}

.partners-list {
  width: 100%;
  margin: 0 auto;
  flex-wrap: wrap;
}

footer {
  width: 100%;
  justify-content: space-around;
  text-align: center;
  padding: 3rem 0;
  margin: 0 auto;
  background-color: #fff;
}

footer .created {
  width: 70%;
  margin: 1rem;
}

footer .created p {
  color: var(--text-color);
  text-align: left;
}

@media screen and (min-width: 768px) {
  .home-section {
    padding-left: 10%;
    padding-right: 10%;
  }

  .conf-image {
    flex-direction: row;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin: 2rem auto;
  }

  .conf-image li {
    margin: 0 0.5rem 1rem;
    width: 80%;
    max-width: 500px;
    height: 300px;
    position: relative;
  }
}

@media screen and (min-width: 769px) {
  header .media {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 3;
    background-color: var(--text-color);
  }

  header .media ul {
    justify-content: flex-end;
    margin-right: 9%;
  }

  .media ul li {
    padding: 10px 14px;
  }

  .media ul li a {
    color: var(--primary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.5s ease-in-out;
  }

  .media ul li a:hover {
    color: var(--secondary);
  }

  .Hamburger .show-menu-btn {
    display: none;
  }

  header .Hamburger {
    position: fixed;
    top: 22px;
    left: 0;
    right: 0;
    justify-content: space-between;
    margin-left: 100px;
    margin-right: 80px;
    z-index: 2;
  }

  nav .logo {
    display: block;
    width: 4.5rem;
    height: 100px;
    margin-top: 20px;
  }

  nav .nav-menu {
    visibility: visible;
    flex-direction: row;
    justify-content: flex-start;
    align-items: center;
    position: static;
    transition: all 1s ease-in-out;
    transform: translateY(0%);
  }

  nav .nav-menu li {
    font-size: 22px;
    font-weight: 400;
    margin: 12px;
  }

  nav .nav-menu li.active a {
    color: var(--secondary);
  }

  .nav-bar {
    background-color: #fff;
    height: 115px;
  }

  .home-section {
    padding-top: calc(80px + 92px);
  }

  .title-home-section h2 {
    font-size: 40px;
    font-family: 'Lato', sans-serif;
    font-weight: 500;
    line-height: 60px;
  }

  .title-home-section h1 {
    font-size: 45px;
    font-weight: 500;
    font-family: 'COCOGOOSE', sans-serif;
    line-height: 78px;
  }

  article h4 {
    width: 90%;
    font-family: 'Lato', sans-serif;
  }

  .contact-info {
    font-family: 'Lato', sans-serif;
    font-weight: var(--weight);
  }

  .program-overview h2,
  .conference h2,
  .partners-section h2 {
    padding: 52px 0 12px;
    font-size: 30px;
    line-height: 48px;
    font-family: 'Lato', sans-serif;
  }

  .program-overview p,
  .conference p {
    font-family: 'Lato', sans-serif;
    font-weight: var(--weight);
  }

  footer .created p {
    text-align: right;
  }
}