@font-face {
  font-family: 'Quicksand';
  src: url('../fonts/Quicksand-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
}

/*--------------------------------------------------------------
# Header
--------------------------------------------------------------*/

#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  padding: 20px 0;
  transition: background 0.3s ease;
}

#header .header-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#header .logo-group {
  display: flex;
  align-items: center;
  gap: 15px;
}

#header .cvpr-logo {
  display: flex;
  align-items: center;
}

#header .cvpr-logo img {
  height: 32px;
  width: auto;
}

#header .logo-divider {
  width: 1px;
  height: 24px;
  background: rgba(255, 255, 255, 0.4);
}

#header .logo {
  font-family: 'Quicksand', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 3px;
  text-decoration: none;
}

#header .logo:hover {
  color: #f82249;
}

#header .nav-menu {
  display: flex;
  gap: 30px;
}

#header .nav-menu a {
  font-family: "Raleway", sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  transition: color 0.3s ease;
}

#header .nav-menu a:hover {
  color: #f82249;
}

#header.header-scrolled {
  background: rgba(6, 12, 34, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 12px 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

/*--------------------------------------------------------------
# Intro Section
--------------------------------------------------------------*/

  #intro {
    width: 100%;
    height: 100vh;
    background: url(../img/Denver-Skyline-Wallpaper-Mural.jpg) top center;
    background-size: cover;
    overflow: hidden;
    position: relative;
  }

  #intro:before {
    content: "";
    background: rgba(6, 12, 34, 0.3);  /* Dark overlay on background image */
    position: absolute;
    bottom: 0;
    top: 0;
    left: 0;
    right: 0;
  }

  #intro .intro-container {
    position: absolute;
    bottom: 0;
    left: 0;
    top: 90px;
    right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    text-align: center;
    padding: 0 15px;
  }

  #intro h1 {
    color: #fff;
    font-family: "Raleway", sans-serif;
    font-size: 56px;
    font-weight: 600;
  }

  #intro h1.vita-title {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: 62px;
    letter-spacing: 8px;
  }

  #intro p {
    color: #ebebeb;
    font-weight: 700;
    font-size: 20px;
  }

  #intro .about-btn {
    font-family: "Raleway", sans-serif;
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 1px;
    display: inline-block;
    padding: 12px 32px;
    border-radius: 50px;
    transition: 0.5s;
    line-height: 1;
    margin: 10px;
    color: #fff;
    border: 2px solid #f82249;
  }

  #intro .about-btn:hover {
    background: #f82249;
    color: #fff;
  }

/*--------------------------------------------------------------
# About Section
--------------------------------------------------------------*/

#about {
  padding: 60px 0 40px 0;
  background: #fff;
}

#about .container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 15px;
}

#about .row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}

#about .col-lg-6 {
  flex: 0 0 50%;
  max-width: 50%;
  padding: 0 15px;
}

#about .col-lg-3 {
  flex: 0 0 25%;
  max-width: 25%;
  padding: 0 15px;
}

#about h2 {
  font-size: 36px;
  font-weight: bold;
  margin-bottom: 10px;
  color: #0e1b4d;
}

#about h3 {
  font-size: 18px;
  font-weight: bold;
  text-transform: uppercase;
  margin-bottom: 10px;
  color: #0e1b4d;
}

#about p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
  color: #555;
}

/* Responsive - Mobile */
@media (max-width: 991px) {
    #header {
      padding: 15px 0;
    }

    #header .header-container {
      padding: 0 20px;
    }

    #header .logo-group {
      gap: 10px;
    }

    #header .cvpr-logo img {
      height: 24px;
    }

    #header .logo-divider {
      height: 18px;
    }

    #header .logo {
      font-size: 22px;
    }

    #header .nav-menu {
      gap: 15px;
    }

    #header .nav-menu a {
      font-size: 12px;
    }

    #intro .intro-container {
      top: 70px;
    }

    #intro h1 {
      font-size: 34px;
    }

    #intro h1.vita-title {
      font-size: 42px;
      letter-spacing: 4px;
    }

    #intro p {
      font-size: 16px;
    }

    #about .col-lg-6,
    #about .col-lg-3 {
      flex: 0 0 100%;
      max-width: 100%;
      margin-bottom: 20px;
    }

    #about h2 {
      font-size: 28px;
    }

  }

/*--------------------------------------------------------------
# Speakers Section
--------------------------------------------------------------*/

#speakers {
  padding: 60px 0 0 0;
  background: #f6f7fd;
}

#speakers .container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 15px;
}

#speakers .section-header {
  text-align: left;
  margin-bottom: 40px;
}

#speakers .section-header h2 {
  font-size: 28px;
  font-weight: bold;
  color: #0e1b4d;
}

#speakers .row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}

#speakers .col-lg-2 {
  flex: 0 0 16.666667%;
  max-width: 16.666667%;
  padding: 0 15px;
}

#speakers .speaker {
  margin-bottom: 30px;
  text-align: center;
}

#speakers .speaker > a {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  margin-bottom: 15px;
}

#speakers .speaker img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

#speakers .speaker .details h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 5px;
  color: #0e1b4d;
}

#speakers .speaker .details h3 a {
  color: #0e1b4d;
}

#speakers .speaker .details h3 a:hover {
  color: #f82249;
}

#speakers .speaker .details p {
  font-size: 13px;
  color: #555;
  font-style: italic;
}

/*--------------------------------------------------------------
# Organizers Section
--------------------------------------------------------------*/

#organizers {
  padding: 0 0 60px 0;
  background: #f6f7fd;
}

#organizers .container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 15px;
}

#organizers .section-header {
  text-align: left;
  margin-bottom: 40px;
  padding-top: 40px;
  border-top: 1px solid #e0e0e0;
}

#organizers .section-header h2 {
  font-size: 28px;
  font-weight: bold;
  color: #0e1b4d;
}

#organizers .row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}

#organizers .col-lg-3 {
  flex: 0 0 25%;
  max-width: 25%;
  padding: 0 15px;
}

#organizers .organizer {
  position: relative;
  overflow: hidden;
  margin-bottom: 30px;
}

#organizers .organizer img {
  width: 100%;
  display: block;
}

#organizers .organizer .details {
  background: rgba(6, 12, 34, 0.76);
  position: absolute;
  left: 0;
  bottom: -40px;
  right: 0;
  text-align: center;
  padding: 15px 10px;
  transition: all 300ms cubic-bezier(0.645, 0.045, 0.355, 1);
}

#organizers .organizer .details h3 {
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 5px;
}

#organizers .organizer .details h3 a {
  color: #fff;
}

#organizers .organizer .details h3 a:hover {
  color: #f82249;
}

#organizers .organizer .details p {
  color: #fff;
  font-size: 14px;
  margin-bottom: 10px;
  font-style: italic;
}

#organizers .organizer .details .social {
  height: 30px;
}

#organizers .organizer .details .social a {
  color: #fff;
  text-decoration: none;
  margin: 0 5px;
}

#organizers .organizer .details .social a:hover {
  color: #f82249;
}

#organizers .organizer:hover .details {
  bottom: 0;
}

.img-fluid {
  max-width: 100%;
  height: auto;
}

/* Responsive - Speakers & Organizers */
@media (max-width: 991px) {
  #speakers .col-lg-2 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }

  #organizers .col-lg-3 {
    flex: 0 0 50%;
    max-width: 50%;
  }