@import url('https://fonts.googleapis.com/css2?family=Lato:wght@300;400;700;900&display=swap');

.brand-color {
  color: #ec5242;
}

* {
  font-family: 'Lato', sans-serif;
}

header {
  position: absolute;
  top: 0;
  width: 100%;
  z-index: 999;
}

.top-header {
  display: flex;
  background-color: #272a31;
  color: white;
  padding: 0 9em;
}

.top-header i,
.top-header p {
  padding-left: 1.5em;
  font-size: 0.9em;
}

/* nav-bar */

.hamburger {
  font-size: 2em;
  padding: 1em;
  color: #272a31;
}

/* mobile pop-up menu */

.pop-up {
  display: flex;
  flex-direction: column;
  background-color: #272a31;
  mix-blend-mode: multiply;
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  color: white;
  padding: 2.25em;
  backdrop-filter: blur(15px);
}

.navlink {
  display: flex;
  flex-direction: column;
  color: white;
  text-decoration: none;
  font-size: 1.2em;
  font-weight: 700;
  line-height: 2em;
  padding-top: 0.5em;
  cursor: pointer;
  border-bottom: 1px solid rgb(211, 211, 211, 0.1);
}

.navlink:hover {
  color: #ec5242;
}

.close {
  display: flex;
  flex-direction: row-reverse;
  font-size: 1.75em;
  cursor: pointer;
  align-items: center;
  padding-bottom: 3em;
}

.hidden {
  display: none !important;
}

/* headline section */

.headline {
  background-image: url('../images/background-images/college_view.jpg');
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.overlay {
  width: 100%;
  height: 100%;
  background-color: rgba(200, 200, 200, 0.7);
  padding: 9em 1em;
}

.bg-01 {
  width: 30px;
  height: 30px;
  top: 10%;
  left: 15%;
  opacity: 0.4;
  position: absolute;
}

.bg-02 {
  width: 20px;
  height: 20px;
  top: 94%;
  left: 35%;
  opacity: 0.4;
  position: absolute;
}

.bg-03 {
  width: 40px;
  height: 40px;
  top: 4%;
  right: 30%;
  opacity: 0.2;
  transform: rotate(25deg);
  position: absolute;
}

.bg-04 {
  width: 40px;
  height: 40px;
  top: 79%;
  left: 7%;
  opacity: 0.3;
  transform: rotate(10deg);
  position: absolute;
}

.bg-05 {
  width: 40px;
  height: 40px;
  top: 30%;
  right: -18px;
  position: absolute;
}

.greet {
  font-weight: 500;
  font-size: 1.3em;
}

.header {
  font-size: 1.7em;
  font-weight: 600;
}
.button {
  border: none;
  color: black;
  padding: 16px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 2px 2px;
  transition-duration: 0.4s;
  cursor: pointer;
}

.button1 {
  background-color: #4C5567;
  color: white;
  border: 1px solid #808080;
}

.button1:hover {
  background-color: #ec5242;
  color: white;
  /*color: black;*/
}

.title {
  font-weight: 900;
  font-size: 2.5em;
  font-family: "Product Sans";
}

.subtitle {
  color: #272a31;
  padding: 1em 0.5em;
}

.underline {
  height: 1px;
  background-color: #ec5242;
  width: 2em;
  margin-top: 0.5em;
}

/* sponsors */
.speaker-img {
  border-radius: 50%;
}

.sponsors {
  background-color: #272a31;
  color: #d3d3d3;
  padding: 2em 0;
}

.sponsors-logo {
  width: 90%;
  margin: 0 auto;
  flex-direction: column;
  padding: 1em 0;
  justify-content: space-between;
  gap: 1em;
}

.sponsors-logo img {
  width: 6em;
}

.sponsors h2 {
  font-size: 1.3em;
  font-weight: 700;
}

.sponsors-logo > div {
  justify-content: center;
  align-items: center;
  gap: 1em;
}

footer {
  background-color: rgba(0,0,0,0);
  display: flex;
  align-items: center;
  text-align: center;
  justify-content: center;
  padding: 3em 0;
  gap: 2em;
}

.footer-logo img {
  width: 15em;
}

/*.speaker-click {*/
/*  cursor: pointer;*/
/*  text-decoration: none;*/
/*  !*background-color: none;*!*/
/*}*/
@media screen and (max-width: 600px) {
  .logos img {
    padding-bottom: 1em;
  }

  .sponsors-logo {
    flex-direction: column;
    align-items: center;
  }
}

@media screen and (max-width: 768px) {
  .logo,
  .top-header {
    display: none;
    align-items: right;
  }

  .program-details-link {
    display: none;
  }
}

@media screen and (min-width: 767px) {
  /* nav-bar */

  .bar-menu {
    display: none;
  }

  .navbar-style {
    box-shadow: 0 5px 15px -10px #272a31;
    background-color: white;
    padding: 0.5em 7em;
  }

  .navitem {
    list-style-type: none;
    display: flex;
  }

  .hidden {
    display: flex !important;
  }

  .close {
    display: none;
  }

  .pop-up {
    display: flex;
    flex-direction: row;
    padding: 0;
    background-color: white;
    color: #272a31;
    position: relative;
    width: initial;
    height: initial;
    gap: 2em;
  }

  .navlink {
    display: flex;
    padding: 0.5em 2em;
    font-size: 0.95em;
    text-decoration: none;
    color: #272a31;
    font-weight: 400;
  }

  /* headline */

  main {
    padding-top: 6.03em;
  }

  .overlay {
    padding: 9em;
  }

  .greet {
    font-size: 1.75em;
  }

  .header {
    font-size: 2em;
  }

  .subtitle {
    margin-bottom: 2em;
  }
}