:root {
      --primary: #242753;
      --secondary: #F7A600;
      --tertiary: #E5231B;
      --yellow: #FFCC00;
      --green: #668C2D;
    }

    body {
      font-family: "Poppins", sans-serif;
      scroll-behavior: smooth;
    }

    /* Navbar wrapper */
    .navbar-wrapper {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 25px;
      padding: 0.5rem 1rem;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      transition: transform 0.4s ease, opacity 0.4s ease;
    }

    .navbar-logo img {
      height: 50px;
      border-radius: 8px;
      margin-right: 50px;
    }

    .navbar {
      background-color: var(--primary);
      border-radius: 35px;
      padding: 0.6rem 1rem;
      display: flex;
      justify-content: center;
      align-items: center;
      transition: background-color 0.3s ease, box-shadow 0.3s ease;
    }

    .navbar.scrolled {
      background-color: var(--primary);
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    }

    .navbar-nav .nav-link {
      color: white;
      font-weight: 500;
      margin: 0 0.5rem;
      transition: 0.3s;
    }

    .navbar-nav .nav-link:hover {
      color: var(--secondary);
      text-decoration: underline;
    }

    .navbar-nav .nav-link.active {
     color: var(--secondary);
     font-weight: bold;
     text-decoration: underline;
    }

    .navbar-toggler {
  border-color: white; 
  }

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='white' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
  }

    .btn-register {
      background-color: white;
      color: var(--green);
      border: none;
      padding: 0.7rem 1.4rem;
      border-radius: 25px;
      font-weight: 500;
      transition: 0.3s;
    }

    .btn-register1 {
      background-color: var(--green);
      color: white;
      border: none;
      padding: 0.7rem 1.4rem;
      border-radius: 25px;
      font-weight: 500;
      transition: 0.3s;
    }

    /* Hero Section */
    .hero-intro {
     position: relative;
     color: white;
     text-align: left;
     padding: 100px 20px;
     display: flex;
     flex-direction: column;
     justify-content: center;
     overflow: hidden;
   }

/* Slider */
.hero-slider {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
}

.hero-slider .slide {
  position: absolute;
  top: 0; left: 100%;
  width: 100%; height: 100%;
  background-size: cover;
  background-position: center;
  transition: left 1s ease-in-out, opacity 1s ease-in-out;
  opacity: 0;
}

.hero-slider .slide.active {
  left: 0;
  opacity: 1;
  z-index: 1;
}

/* Overlay */
.hero-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1;
}

/* Content above overlay */
.hero-intro .container {
  position: relative;
  z-index: 2;
}

/* Headings & Text */
.hero-intro h1 {
  font-family: "HvDTrial Brandon Grotesque", sans-serif;
  font-weight: 700;
  font-style: normal;
  font-size: 64px;
  line-height: 100%;
  letter-spacing: 0%;
  text-align: left;
  color: var(--secondary);
}

.intro-text {
  font-size: 0.9rem;
  line-height: 1.8;
  text-align: left;
  text-shadow: 1px 1px 3px black;
  opacity: 0;
  color: transparent;
}


/* Logos & Button */
.logo-group img {
  height: 50px;
  width: auto;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0,0,0,0);
  padding: 5px;
}

.btn-location {
  background-color: var(--tertiary);
  color: white;
  border: none;
  height: 50px;
  padding: 0.7rem 1.5rem;
  border-radius: 25px;
  transition: 0.3s;
  margin-right: 3.56rem;
  cursor: pointer;
}

.btn-location:hover {
  background-color: #c72b23;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-intro h1 { font-size: 48px; margin-top: 60px;}
  .intro-text { font-size: 0.85rem; }
  .btn-location { margin-right: 0; margin-top: 1rem; }
}

@media (max-width: 768px) {
  .hero-intro { padding: 80px 15px; }
  .hero-intro h1 { font-size: 36px; margin-top: 60px;}
  .intro-text { font-size: 0.8rem; }
  .logo-group { display: flex; flex-wrap: wrap; gap: 1rem; }
}

    /* Conference Overview */
    #conference-overview {
      background-color: var(--primary);
      color: white;
      text-align: center;
      padding: 20px 0;
    }

    #conference-overview h2 {
      color: var(--yellow);
    }

    #conference-overview hr {
      width: 60%;
      margin: 1rem auto;
      border: 1.5px solid var(--yellow);
    }

    /* Theme & Program Section */
    #themes {
      background-color: white;
      color: var(--primary);
      padding: 60px 0;
    }

    #themes h2 {
      color: var(--primary);
      margin-bottom: 1rem;
    }

    #themes hr {
      width: 60%;
      margin: 1rem auto 2rem auto;
      border: 1.5px solid var(--primary);
    }

    .program-card {
      background-color: #f8f9fa;
      border: 1px solid #ddd;
      border-radius: 12px;
      padding: 1.5rem;
      margin-bottom: 20px;
      text-align: left;
      transition: 0.3s;
    }

    .program-card p {
     display: flex;
     justify-content: space-between;
     align-items: center;
   }


    .program-card:hover {
      background-color: #f1f3f5;
      transform: translateY(-3px);
    }

    .program-card img {
      width: 100%;
      border-radius: 8px;
      margin-bottom: 0.75rem;
    }

    .program-card h5 {
      color: var(--primary);
      font-weight: 600;
    }

    /* Call for Abstracts Section */
    #call-abstracts {
      background-color: #f8f9fa;
      padding: 60px 0;
      color: var(--primary);
    }

    #call-abstracts h2 {
      text-align: center;
      
    }

    #call-abstracts p {
      font-size: 1.1rem;
      text-align: justify;
    }

    #call-abstracts .btn {
      background-color: var(--secondary);
      color: #fff;
      border-radius: 25px;
      padding: 0.7rem 1.5rem;
      transition: 0.3s;
    }

    #call-abstracts .btn:hover {
      background-color: var(--tertiary);
    }

    /* Information Section */
    .bullet-circle {
      width: 30px;
      height: 30px;
      border-radius: 50%;
      background-color: var(--primary);
    }
    .info-bullet p {
      font-size: 0.95rem;
      color: var(--primary);
    }
    .register-container p {
      margin: 0;
    }
    @media (max-width: 768px) {
      .register-container {
        flex-direction: column;
        gap: 1rem;
      }
      .register-container button {
        align-self: flex-start;
      }
    }

    /* Accommodation Section */
    #accommodation {
      padding: 60px 0;
      background-color: #f8f9fa;
    }

    #accommodation .hotel-card {
      border: 1px solid #ddd;
      border-radius: 12px;
      padding: 10px;
      text-align: center;
      background-color: white;
      transition: 0.3s;
    }

    #accommodation .hotel-card img {
      width: 100%;
      height: 180px;
      object-fit: cover;
      border-radius: 8px;
      margin-bottom: 10px;
    }

    #accommodation .hotel-card h5 {
      font-weight: 600;
      color: var(--primary);
    }

    #accommodation .accommodation-contact {
      background-color: var(--green);
      color: white;
      padding: 20px;
      border-radius: 12px;
      text-align: center;
    }

    #accommodation .accommodation-contact a {
      color: white;
      text-decoration: underline;
    }

    #accommodation .accommodation-contact button {
      margin-top: 10px;
      padding: 8px 16px;
      border: none;
      border-radius: 25px;
      background-color: var(--tertiary);
      color: white;
      font-weight: 600;
      cursor: pointer;
    }

    #accommodation .accommodation-contact button:hover {
      background-color: #c72b23;
    }

    .bullet-circle {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      font-weight: bold;
      color: white;
      flex-shrink: 0;
      font-size: 0.9rem;
    }

    .bullet-circle.primary {
      background-color: var(--primary);
    }

    .bullet-circle.secondary {
      background-color: var(--secondary);
    }

    .icon-box {
     display: flex;
     justify-content: center;
     align-items: center;
     border-radius: 50%;
     padding: 12px;
     width: 80px;
     height: 80px;
   }

.icon-box i {
   font-size: 3rem;
  }

  /* Desktop: 2-column grid */
.speakers-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

/* Speaker card layout (desktop) */
.speaker-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

/* Image styles (unchanged from your inline version) */
.speaker-card img {
  width: 220px;
  height: auto;
  max-height: 264px;
  object-fit: contain;
  border-radius: 12px;
}

/* Text styling */
.speaker-card p {
  margin: 0;
  font-size: 0.60rem;
  line-height: 1.4;
  max-width: 220px;
}


@media (max-width: 768px) {
  .speakers-grid {
    grid-template-columns: 1fr; 
    gap: 25px;
  }

  .speaker-card {
    flex-direction: column; 
    align-items: center;
    text-align: center;
  }

  .speaker-card img {
    width: 180px; 
    max-height: 230px;
  }

  .speaker-card p {
    max-width: 90%;
    font-size: 0.75rem;
  }
}


@media (max-width: 768px) {
  .call-abstracts-text {
    font-size: 0.75rem !important;
    line-height: 1.45;
  }

  .call-abstracts-title {
    font-size: 1.4rem !important;
  }
}

  @media (max-width: 768px) {
    .contact-box {
      padding: 15px !important;
      border-radius: 18px !important;
    }

    .contact-box h5 {
      font-size: 14px !important;
      margin-bottom: 10px !important;
    }

    .contact-box ul {
      font-size: 12px !important;
      line-height: 1.3 !important;
    }

    .contact-box ul li {
      margin-bottom: 6px !important;
    }
  }

    @media (max-width: 768px) {

    #register-container {
      padding: 15px !important;
      border-radius: 10px !important;
    }

    #register-container h4 {
      font-size: 1.3rem !important;
    }

    #register-container p {
      font-size: 0.8rem !important;
      line-height: 1.4 !important;
    }

    .register-info {
      margin-right: 0 !important;
      margin-bottom: 15px !important;
    }

    #register-container .btn-register {
      width: 100% !important;
      text-align: center !important;
      padding: 12px 0 !important;
      font-size: 0.9rem !important;
    }
  }