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

.landing-page {
  background-image: url("./images/backgroud.jpg");
}

.media {
  display: none;
}

.home-page {
  display: flex;
  flex-direction: column;
  background: whitesmoke;
  opacity: 1;
}

.nav-bar {
  display: flex;
  margin-top: 0;
  background-color: whitesmoke;
  opacity: 1;
  padding: 30px;
}

.greeting {
  font-family: 'Lato', sans-serif;
  color: #eb4a10;
  font-size: 20px;
  margin-left: 30px;
}

h1 {
  color: rgb(253, 75, 10);
  font-size: 40px;
  margin-left: 20px;
  padding-bottom: 20px;
  font-family: 'Lato', sans-serif;
}

.disc {
  border: solid white;
  margin-left: 20px;
  margin-right: 20px;
  padding: 30px;
  margin-bottom: 20px;
  font-family: 'Lato', sans-serif;
}

.time h4 {
  font-size: 30px;
  font-family: 'Lato', sans-serif;
  margin-left: 20px;
  color: rgb(102, 98, 98);
}

.time p {
  font-size: 15px;
  margin-left: 20px;
  padding-bottom: 40px;
  font-family: 'Lato', sans-serif;
}

.activities {
  display: flex;
  flex-direction: column;
  background: url("./images/blackBg.jpg");
  padding-bottom: 50px;
}

h3 {
  font-size: 25px;
  text-align: center;
  color: white;
  margin-top: 20px;
  font-family: 'Lato', sans-serif;
}

.part {
  display: flex;
  border: solid white;
  background: whitesmoke;
  opacity: 1;
  margin-right: 20px;
  margin-left: 20px;
  margin-top: 10px;
  gap: 2em;
}

.part img {
  height: 30px;
  width: 40px;
  margin-left: 30px;
  margin-top: 20px;
}

.type {
  color: rgb(230, 60, 30);
  margin-top: 25px;
}

.clickme {
  border-style: none;
  color: white;
  font-family: 'Lato', sans-serif;
  font-style: normal;
  font-weight: 500;
  font-size: 17px;
  line-height: 24px;
  letter-spacing: 0.03em;
  background: orangered;
  padding: 20px 10px;
  margin: 30px 70px;
}

.activities a {
  display: none;
}

.speakers {
  display: flex;
  flex-direction: column;
  margin-top: 20px;
}

.presenters {
  display: flex;
  flex-direction: row;
  gap: 2em;
  padding-top: 40px;
}

.presenters img {
  width: 150px;
  height: 150px;
}

.speakers h3 {
  color: #0e0d0d;
}

.words {
  display: flex;
  flex-direction: column;
}

.name {
  font-size: 20px;
}

.title {
  color: orangered;
}

.explanation {
  padding-top: 20px;
  font-family: 'Lato', sans-serif;
}

.reference {
  display: flex;
  background: rgb(43, 43, 48);
  margin-top: 20px;
  padding: 25px;
  gap: 1em;
  justify-content: center;
}

.reference img {
  width: 50px;
  height: 50px;
}

.reference p {
  color: darkgray;
  font-family: 'Lato', sans-serif;
}

.nav-menu {
  display: none;
}

.sponsors {
  display: none;
}

.more {
  display: flex;
  margin: 20px 30px;
  border: 2px solid gray;
  padding: 10px 200px;
  align-items: center;
  font-family: 'Lato', sans-serif;
}

.menu-item-hidden {
  display: none;
}

.menu-item-active {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: whitesmoke;
  font-style: normal;
  font-weight: 600;
  font-size: 32px;
  left: 0;
  right: 0;
  top: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  position: fixed;
  font-family: 'Lato', sans-serif;
}

.menu-item-active::-webkit-scrollbar {
  display: none;
}

li {
  list-style: none;
}

.menu-item-active a {
  text-decoration: none;
  color: black;
}

.cancel {
  display: none;
  align-self: flex-start;
  margin: 10px;
}

.speakers::before {
  content: 'Featured Speakers';
  display: flex;
  justify-content: center;
  width: 100vw;
  font-family: lato, sans-serif;
  font-size: 30px;
}

@media only screen and (min-width: 769px) {
  .nav-bar {
    display: none;
  }

  .home-page {
    display: flex;
    flex-direction: column;
    background: whitesmoke;
    opacity: 0.85;
    padding-left: 90px;
  }

  .greeting {
    font-family: 'Lato', sans-serif;
    color: #eb4a10;
    font-size: 30px;
    margin-left: 30px;
    padding-top: 100px;
  }

  h1 {
    color: rgb(253, 75, 10);
    font-size: 60px;
    margin-left: 20px;
    padding-bottom: 20px;
    width: 700px;
    font-family: 'Lato', sans-serif;
  }

  .disc {
    border: solid white;
    margin-left: 20px;
    margin-right: 20px;
    padding: 30px;
    margin-bottom: 20px;
    font-size: 30px;
    font-family: 'Lato', sans-serif;
  }

  .program {
    color: black;
    padding-bottom: 30px;
  }

  .time h4 {
    font-size: 30px;
    font-family: 'Lato', sans-serif;
    margin-left: 20px;
    color: rgb(102, 98, 98);
  }

  .time p {
    font-size: 20px;
    margin-left: 20px;
    padding-bottom: 40px;
    font-family: 'Lato', sans-serif;
  }

  .allparts {
    display: flex;
    flex-direction: row;
    justify-content: center;
    row-gap: 1px;
  }

  .part {
    border: solid white;
    background: whitesmoke;
    display: flex;
    flex-direction: column;
    opacity: 0.5;
    margin-right: 0;
    margin-left: 2px;
    margin-top: 20px;
    gap: 0;
  }

  .clickme {
    display: none;
  }

  .part img {
    height: 50px;
    width: 60px;
    align-self: center;
  }

  .type {
    color: rgb(230, 60, 30);
    font-size: 20px;
    text-align: center;
  }

  .explanation {
    font-size: 15px;
    text-align: center;
    width: 150px;
    padding-bottom: 10px;
    font-family: 'Lato', sans-serif;
  }

  #speakers {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    padding: 50px 0;
  }

  .presenters img {
    width: 150px;
    height: 150px;
  }

  .speakers h3 {
    color: #0e0d0d;
  }

  .words {
    display: flex;
    flex-direction: column;
  }

  .name {
    font-size: 25px;
  }

  .title {
    color: orangered;
  }

  .intro {
    width: 600px;
    padding-top: 20px;
  }

  .media {
    display: flex;
    justify-content: right;
    background-color: rgb(62, 62, 66);
    gap: 1em;
    padding-right: 10px;
  }

  .link {
    text-decoration: none;
    color: hsl(0, 0%, 100%);
  }

  .nav-menu {
    display: flex;
    list-style: none;
    background: white;
    justify-content: space-between;
    margin-left: 0;
  }

  .nav-menu img {
    width: 200px;
    height: 70px;
    margin: 10px 100px;
  }

  .cancel {
    display: none;
  }

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

  .menu-items {
    display: flex;
    justify-content: right;
    padding: 15px;
    font-size: 16px;
    align-items: center;
    gap: 50px;
  }

  .menu-items li {
    list-style: none;
  }

  .campain {
    border: 3px solid orangered;
    padding: 15px;
  }

  .about {
    color: orangered;
  }

  .sponsors {
    display: flex;
    margin: 20px 0;
    flex-direction: column;
    background-color: rgb(66, 63, 63);
    justify-content: center;
  }

  .images {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
  }

  .images img {
    display: flex;
    width: 100px;
    height: 50px;
    padding: 30px 60px;
    flex-grow: 0;
    flex-basis: 0;
    flex-shrink: 0;
  }

  .sponsors h3 {
    color: rgb(201, 191, 191);
    font-size: 50px;
    text-align: center;
  }

  .reference {
    display: flex;
    margin-top: 5px;
    gap: 15em;
    justify-content: center;
    background: white;
  }

  .reference img {
    width: 200px;
    height: 70px;
  }

  .reference p {
    color: black;
    font-family: 'Lato', sans-serif;
  }
}