style.css

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

body {
  background-color: #e5e5e5;
  font-family: 'Lato', sans-serif;
}

/* NavBar section */

.top_head {
  display: none;
  flex-direction: row;
  justify-content: end;
  align-items: center;
  padding-right: 10%;
  width: 100%;
  height: 35px;
  background-color: #272a31;
}

.top_head_ul {
  display: flex;
  flex-direction: row;
  width: auto;
  gap: 20px;
}

.top_head_items {
  width: auto;
  color: #fff;
  font-family: 'Lato', sans-serif;
}

.top_head_items_icon {
  width: 20px;
}

header {
  position: absolute;
  width: 100%;
  z-index: 1;
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

.overflow {
  overflow: hidden;
}

.desktop-nav {
  display: none;
  justify-content: space-between;
  background-color: transparent;
}

nav {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #fff;
  height: 68px;
}

.navbar_container {
  display: flex;
  flex-direction: row-reverse;
  justify-content: space-between;
  align-items: center;
  width: 80%;
}

.navbar-links {
  color: #272a31;
  font-size: 15px;
  font-weight: 500;
  line-height: 20px;
  padding: 10px 12px;
  margin-left: 32px;
  font-family: 'Lato', sans-serif;
}

.navbar-links:hover {
  color: #ec5242;
}

.navbar-links:active {
  color: #ec5242;
}

.campaign_link {
  border-width: 3px;
  border-style: solid;
  border-color: #ec5242;
}

.top_header_logo {
  display: none;
  width: 60px;
  height: 50px;
}

.mobile-menu-bars {
  z-index: 100;
  display: inline;
  cursor: pointer;
}

.bar1,
.bar2,
.bar3 {
  width: 24px;
  height: 4px;
  background-color: #272a31;
  margin-bottom: 5px;
  transition: 0.5s;
}

.change .bar1 {
  transform: rotate(45deg) translateY(10px);
  background-color: #fff;
}

.change .bar2 {
  opacity: 0;
}

.change .bar3 {
  transform: rotate(-45deg) translateY(-10px);
  background-color: #fff;
}

.overlay {
  position: fixed;
  z-index: 99;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(255, 118, 55, 0.8);
  backdrop-filter: blur(5px);
  transition: 0.6s;
}

.overlay-slide-right {
  transform: translateX(0);
}

.overlay-slide-left {
  transform: translateX(-100vw);
}

#nav-1,
#nav-2,
#nav-3 {
  margin-bottom: 40px;
}

.nav-mobile-links {
  font-weight: 600;
  font-size: 32px;
  line-height: 44px;
  color: #fff;
  font-family: 'Lato', sans-serif;
}

.header_part {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 740px;
  background-size: cover;
  background-repeat: no-repeat;
  background-image: url(images/background/bg.jpg);
}

.header_part_main_div {
  display: flex;
  flex-direction: column;
  width: 70%;
  padding-top: -10%;
}

.header_part_text_div {
  width: 90%;
}

.intro {
  padding-top: 5px;
  font-family: var(--secondary-font);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 27px;
  color: #ec5242;
  padding-bottom: 30px;
  line-height: 1.5rem;
  line-break: normal;
}

.header_text {
  width: 100%;
}

.hello-text {
  color: #ec5242;
  font-family: 'Lato', sans-serif;
  font-weight: 500;
  font-size: 30px;
  margin-bottom: 1px;
}

.about_header {
  margin-top: 5px;
  width: auto;
  max-width: 600px;
  font-family: 'Lato', sans-serif;
  font-weight: 500;
  font-size: 15px;
  padding: 16px;
  color: #272a31;
  background-color: rgb(223, 223, 223);
}

.date {
  margin-top: 30px;
  font-weight: 600;
  font-size: 20px;
  color: #272a31;
  font-family: 'COCOGOOSE', sans-serif;
}

.address {
  color: #272a31;
  font-family: 'Lato', sans-serif;
  font-weight: 500;
  font-size: 15px;
  margin-top: 10px;
}

.main_section {
  display: flex;
  flex-direction: row;
  justify-content: center;
  width: 100%;
  height: auto;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-image: url(images/background/main_program.png);
}

.main_section_div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: auto;
  margin-top: 20px;
  margin-bottom: 20px;
  gap: 15px;
}

.main_header_text {
  color: #fff;
  font-family: 'Lato', sans-serif;
  font-weight: 800;
  font-size: 30px;
  margin-top: 30px;
}

.line {
  width: 80px;
  height: 3px;
  margin-top: 8px;
  border-radius: 50px;
  background-color: #ec5242;
}

.main_cards_div {
  display: flex;
  flex-direction: column;
  width: 100%;
  margin-top: 60px;
  justify-content: center;
  align-items: center;
  gap: 20px;
}

.main_card {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  padding: 15px 10px;
  width: 90%;
  background-color: rgba(168, 168, 168, 0.2);
  gap: 30px;
}

.main_card:hover {
  border-style: solid;
  border-width: 2px;
  border-color: #fff;
  cursor: pointer;
}

.main_card_icon {
  width: 40px;
  height: 40px;
}

.main_card_title {
  color: #ec5242;
  font-family: 'Lato', sans-serif;
  font-weight: 250px;
  font-size: 20px;
  margin-top: 10px;
}

.main_card_message {
  color: #fff;
  font-family: 'Lato', sans-serif;
  font-weight: 500;
  font-size: 13px;
  margin-top: 10px;
  text-align: center;
}

.join_main_button {
  display: block;
  width: 80%;
  height: 70px;
  color: #fff;
  font-family: 'Lato', sans-serif;
  font-weight: 550;
  font-size: 14px;
  background-color: #ec5242;
  border: none;
  margin-bottom: 30px;
}

.link_to_join {
  color: #fff;
  font-family: 'Lato', sans-serif;
  font-weight: 600;
  font-size: 20px;
  margin-top: 50px;
  text-decoration: underline;
  display: none;
}

/* Main Program END */

.featured_speakers_section {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: auto;
  justify-content: center;
  align-items: center;
  background-color: white;
  padding-bottom: 50px;
}

.featured_speakers_main_div {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  flex-wrap: wrap;
  width: 80%;
  height: auto;
  padding-bottom: 30px;
  margin-top: 60px;
  gap: 40px;
}

.featured_speakers_header_text {
  margin-top: 50px;
  font-weight: 800;
  font-size: 25px;
  color: #272a31;
  font-family: 'Lato', sans-serif;
}

.featured_speakers_text_underline {
  display: flex;
  width: 70px;
  height: 3px;
  margin-top: 10px;
  border-radius: 50px;
  background-color: #ec5242;
}

.speaker_div {
  display: flex;
  flex-direction: row;
  max-width: 500px;
  width: fit-content;
  height: 200px;
  gap: 30px;
}

.speaker_image_container {
  width: 40%;
  height: 40%;
}

.speaker_image {
  width: 100%;
}

.speaker_text_container {
  display: flex;
  flex-direction: column;
  width: 60%;
  height: 100%;
  margin-top: 20px;
}

.speaker_name {
  font-weight: 560;
  font-size: 18px;
  color: #272a31;
  font-family: 'Lato', sans-serif;
}

.speaker_education_background {
  margin-top: 10px;
  font-weight: 400;
  font-size: 12px;
  color: #ec5242;
  font-style: italic;
  font-family: 'Lato', sans-serif;
}

.divider_line {
  margin-top: 15px;
  width: 30px;
  height: 2px;
  border-radius: 50px;
  background-color: #ec6a5c;
}

.speaker_education_bio {
  margin-top: 20px;
  font-weight: 300;
  font-size: 12px;
  color: #272a31;
  font-family: 'Lato', sans-serif;
}

.expand_more_place_holder {
  display: none;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  width: 90%;
  height: 50px;
  border-style: solid;
  border-width: 1px;
  border-color: #d3d3d3;
}

.more_text {
  font-weight: 500;
  font-size: 15px;
  color: #272a31;
  font-family: 'Lato', sans-serif;
}

.expand_arrow {
  width: 15px;
  margin-left: 13px;
}

/* Main Featured Speaker section END */

.partners_part {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  height: 300px;
  background-color: #272a31;
}

.partners_part_title {
  margin-top: 30px;
  font-weight: 800;
  font-size: 25px;
  color: #4f4f4f;
  font-family: 'Lato', sans-serif;
}

.partners_part_title_style {
  display: flex;
  width: 40px;
  height: 3px;
  margin-top: 5px;
  margin-bottom: 20px;
  border-radius: 50px;
  background-color: #ec5242;
}

.partners_logos {
  display: flex;
  flex-direction: row;
  justify-content: center;
  flex-wrap: wrap;
  align-items: center;
  width: 90%;
  gap: 8px;
  height: 150px;
}

.partners_logo_image_style {
  width: 170px;
  height: 40px;
}

/* Partners section END  */

.footer {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 250px;
  background-color: #d3d3d3;
}

.footer_div {
  display: flex;
  flex-direction: row;
  width: 70%;
  align-items: center;
  justify-content: center;
  gap: 30px;
}

.footer_logo {
  width: 150px;
}

.footer_text_div {
  display: flex;
  flex-direction: column;
  width: 50%;
  height: auto;
}

.footer_text {
  font-weight: 560;
  font-size: 15px;
  color: #272a31;
  margin-bottom: 10px;
  font-family: 'Lato', sans-serif;
}

/* =============================================
============================================= */

@media screen and (min-width: 769px) {
  .nav_desktop {
    display: flex;
    width: 100%;
  }

  .navbar_container {
    flex-direction: row;
    justify-content: space-between;
    margin: 0;
    padding: 0;
  }

  .top_header_logo {
    display: flex;
  }

  .top_head {
    display: block;
  }

  .top_head_ul {
    display: flex;
    flex-direction: row;
    width: auto;
    gap: 20px;
    justify-content: end;
    align-items: center;
    padding-top: 5px;
  }

  .desktop-nav {
    display: flex;
    margin: 0;
    padding: 0;
  }

  .mobile {
    display: none;
  }

  .header_part_text_div {
    width: 60%;
  }

  .header_part_main_div {
    padding-top: 1%;
  }

  .intro {
    font-size: 45px;
    line-height: 43px;
    font-weight: 1000;
  }

  .main_cards_div {
    flex-direction: row;
    align-items: center;
    padding-bottom: 100px;
  }

  .main_card {
    flex-direction: column;
    width: 230px;
  }

  .join_main_button {
    display: none;
  }

  .partners_logos {
    flex-direction: row;
    justify-content: space-between;
  }
}