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

html {
  font-family: "Lato", sans-serif;
  background-color: #fff;
}

body {
  width: 100%;
}

a {
  text-decoration: none;
}

ul {
  list-style-type: none;
}

button,
input[type="submit"],
input[type="reset"] {
  background: none;
  color: inherit;
  border: none;
  padding: 0;
  font: inherit;
  cursor: pointer;
  outline: inherit;
}

header {
  width: 100%;
}

/* Upperside */
.upperside {
  display: none;
}

/* Nav Menu */
nav {
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  position: relative;
}

.nav-bg {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: -1;
  top: 0;
  left: 0;
  background-image: url("https://p4.wallpaperbetter.com/wallpaper/928/527/680/triangle-abstract-hd-colorful-wallpaper-preview.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0.8;
}

nav h2 {
  font-family: "cocogoose-light", sans-serif;
  letter-spacing: 1.5px;
  margin-top: 5%;
  margin-bottom: 2%;
  justify-self: center;
  align-self: center;
}

.hamburger-menu {
  font-size: 30px;
  font-weight: 900;
  cursor: pointer;
  padding: 10px;
  margin: 10px;
}

.overlay {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  opacity: 0.98;
  overflow-x: hidden;
  transition: 0.5s;
}

.overlay-content {
  position: relative;
  top: 25%;
  width: 100%;
  text-align: center;
  margin-top: 30px;
}

.overlay a {
  padding: 8px;
  text-decoration: none;
  font-size: 36px;
  color: #ec5242;
  display: block;
  transition: 0.3s;
}

.overlay a:hover,
.overlay a:focus {
  color: #f1f1f1;
}

.overlay .closebtn {
  position: absolute;
  top: 1.5rem;
  right: 3rem;
  font-size: 4rem;
}

.desktop-navbar {
  display: none;
}

/* First Section */
.container {
  width: 100%;
  position: relative;
}

.main-content-headers h2 {
  width: 100%;
  margin: 3% 0;
}

.main-content-headers h1 {
  width: 100%;
}

.container h1 {
  font-family: "cocogoose", sans-serif;
  font-size: 1.85rem;
  letter-spacing: 1.5px;
}

.year {
  width: 100%;
  font-family: "Work Sans", sans-serif;
  font-weight: 900;
  font-size: 2.1rem;
  margin-bottom: 15%;
}

.header-content {
  border: 1px solid #d3d3d3;
  background-color: #fff;
  padding: 3%;
  line-height: 1.5rem;
}

.main-content .text-center h1 {
  margin-top: 5%;
}

.main-content-headers {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.bg-header-image {
  position: absolute;
  width: 100%;
  z-index: -1;
  bottom: 0;
  left: 0;
  background-size: cover;
}

.bg-header-image-rotate {
  transform: rotate(180deg);
  top: 0;
  right: 0;
  position: absolute;
  width: 100%;
  z-index: -2;
  background-size: cover;
}

/* First Section Info */
.infos {
  margin: 10% 0;
}

/* Main Program */
.main-program {
  background: url("../utils/images/mosaic.png");
  width: 100%;
  height: 100%;
  padding: 5%;
  opacity: 0.9;
}

.program-item {
  opacity: 0.7;
  margin: 2% 0;
  padding: 3%;
  border-radius: 5px;
}

.item-icon {
  width: 12%;
}

.item-header {
  width: 28%;
}

.item-content {
  width: 60%;
}

.main-btn {
  margin: 5% 0;
}

.see-program {
  display: none;
}

/* Featured Speakers */
.featured-speakers-header {
  margin-top: 10%;
}

.speaker-image {
  width: 150px;
  margin: 3%;
  border-radius: 100%;
}

.speakers-list {
  opacity: 0.8;
}

.speaker-heading {
  margin-bottom: 2%;
}

.speaker-infos {
  width: 67%;
  margin: 3%;
  margin-left: 0;
}

.speakers-btn {
  width: 80%;
  border: #272a31 solid 1px;
  background-color: #fff;
  color: #272a31;
  margin: 5% 0;
}

.down-arrow {
  color: #ec5242;
  margin: 0 5px;
}

.speakers-display {
  display: none;
}

/* Past Activities */
.past-activities {
  margin: 5% 0;
  margin-top: 10%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.activities {
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.past-content {
  width: 80%;
  margin-top: 5%;
  font-size: 1.1rem;
}

.past-first-activity {
  width: 80%;
  min-height: 200px;
  background: url("https://monbien-events.com/wp-content/uploads/2018/03/conference_crop.jpg");
  background-size: cover;
  position: relative;
  opacity: 0.8;
  margin: 5% 0;
}

.first-activity-content {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background-color: #ec5242;
  opacity: 0.8;
  color: #fff;
}

.past-second-activity {
  width: 80%;
  min-height: 200px;
  background: url("https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcREUyl4_ZFKff7UxDV8HlwuMtoVE_UqMxLljuhd3Ycm5QrvTOVNjYIhBMQaaqa2wxCSkIM&usqp=CAU");
  background-size: cover;
  position: relative;
  opacity: 0.8;
  margin: 5% 0;
}

.act:hover {
  opacity: 0.7;
}

/* About Us */
.about-us {
  width: 100%;
  margin-bottom: 10%;
  margin-top: 5%;
  opacity: 0.9;
}

.family-photo {
  width: 100%;
  margin: 5%;
}

.about-us-content {
  margin: 0 5%;
  padding: 3%;
}

/* Partners */
.partners {
  width: 100%;
  opacity: 0.9;
  margin: 5% 0;
}

.partners-heading {
  margin-top: 10%;
}

.partners-list {
  flex-wrap: wrap;
}

.list-item-container {
  margin: 10% 5%;
}

.list-item-container:hover {
  opacity: 0.7;
}

.list-item-container::marker {
  color: #272a31;
}

.list-item {
  width: 80px;
  height: 80px;
}

/* Footer */
.footer {
  width: 100%;
  margin: 5% 0;
}

.contact {
  margin-top: 5%;
}

.ytu-logo {
  width: 80px;
  height: 80px;
}

.contact-details {
  width: 100%;
  margin: 5% 0;
  justify-content: space-around;
}