body {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    }
    .page-wrapper {
  position: relative;
  width: 100%;
  min-height: 100vh; /* Full height */
  
}

.bg-video {
  position: fixed;    /* Make it stay behind */
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;  /* Cover the screen */
  z-index: -1;        /* Send behind content */
}
.bg-image {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;   /* fills screen like a video */
  z-index: -1;         /* keeps it behind content */
}

.content {
  position: relative;
  z-index: 1;         /* Ensure content is above video */
  color: white;       /* Text color on video */
  padding: 20px;
}

/*
    .page-wrapper {
      width: 100%;
      min-height: 100%;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    }
*/
/*
.nav-container { background: rgba(255, 255, 255, 0.95); box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
   position: sticky; top: 0; z-index: 100; backdrop-filter: blur(10px); }
   */
   .nav-container {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  width: 100%;
  display: flex;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  flex-direction: column;  /* keeps background full height */
 /*  height: 100px; */
}

/* Mobile */
@media (max-width: 768px) {
   
  .nav-container .flex.items-center.justify-between {
    flex-direction: column;
    gap: 16px;
     overflow:hidden;
  }

  .nav-container .flex.space-x-6 {
    flex-direction: column;
    gap: 12px;
  }

  .dropdown-menu {
    position: static; /* fix dropdown issues on mobile */
  }
  .publication {
    flex-direction: row;
  }
  
 
}
.nav-container .flex.items-center.justify-between {
  gap: 40px;
}




    .nav-link {
      transition: all 0.3s ease;
      cursor: pointer;
    }

    .nav-link:hover {
      transform: translateY(-2px);
    }

    .nav-link.active {
      font-weight: 600;
    }

   /* =========================
   BASE DROPDOWN
   ========================= */

.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  background: white;
  min-width: 220px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 1000;
}

/* =========================
   DROP DOWN (Research)
   ========================= */

.dropdown-down > .dropdown-menu {
  top: 100%;
  left: 0;
  transform: translateY(-8px);
}

.dropdown-down:hover > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* =========================
   DROP RIGHT (Overview)
   ========================= */

.dropdown-right > .dropdown-menu {
  top: 0;
  left: 100%;
  margin-left: 8px;
  transform: translateX(-8px);
}

.dropdown-right:hover > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}


/* =========================
   DROPDOWN ITEMS
   ========================= */

.dropdown-item {
  display: block;
  padding: 8px 20px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease;
}

.dropdown-item:hover {
  color: purple;
  background: rgba(128, 0, 128, 0.05);
}






    .content-section {
      display: none;
      animation: fadeIn 0.5s ease;
    }

    .content-section.active {
      display: block;
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }

   /* .team-card {
      background: white;
      border-radius: 12px;
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      cursor: pointer;
    }
*/
.team-card {
  background: rgba(255, 255, 255, 0.2); /* transparent */
  backdrop-filter: blur(10px);           /* frosted glass effect */
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.3);
 width: 280px;
    height: 500px;
}

    .team-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
    }

    .video-container {
      position: relative;
      width: 100%;
      padding-bottom: 56.25%;
      background: #000;
      border-radius: 12px;
      overflow: hidden;
    }

    .logo-container {
  width: 120px;
  height: 120px;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;              /* 🔑 */
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform: scale(1.4);         /* 🔥 zoom level */
}


    .scroll-to-top {
      position: fixed;
      bottom: 30px;
      right: 30px;
      width: 56px;
      height: 56px;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
      z-index: 1000;
    }

    .scroll-to-top.visible {
      opacity: 1;
      visibility: visible;
    }

    .scroll-to-top:hover {
      transform: translateY(-4px);
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
    }


   .slideshow-container {
  width: 100%;
  height: 350px;
  position: relative;
  overflow: hidden;
  border-radius: 12px;
}

.slide { position: absolute; width: 100%; height: 100%; opacity: 0; transition: opacity 0.5s ease; display: flex;
  flex-direction: column;
  align-items: center; }

.slide img { width: 100%; height: calc(100% - 50px);  object-fit: contain; border-radius: 12px; }

.slide-prev, .slide-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2rem;
  color: white;
  background: rgba(0,0,0,0.4);
  padding: 8px 12px;
  border-radius: 50%;
  cursor: pointer;
  user-select: none;
  z-index: 10;
}

.slide-prev { left: 10px; }
.slide-next { right: 10px; }

.indicators {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
}

.indicator.active {
  background: white;
}




 .caption {
  position: static;        /* remove absolute positioning */
  width: auto;
  height: 100px;         /* adjust height */
  text-align: left;
  margin-top: 6px;
  padding: 4px 12px;
  font-size: 14px;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  border-radius: 6px;
 
}

.slideshow-container:has(.slide:only-child) {
  cursor: default;
}

.slider-video {
  max-height: 100%;

}





/* Fullscreen image style */
.fullscreen-container {
  width: 100vw;
  height: 100vh;
  background: black;
  position: relative;
}

.fullscreen-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.fullscreen-close {
  position: fixed; /* 🔥 IMPORTANT */
  top: 20px;
  right: 25px;
  font-size: 40px;
  color: white;
  background: rgba(0,0,0,.5);
  border: none;
  cursor: pointer;
  z-index: 9999; /* make sure above everything */
  height: 50px;
  width: 50px;
}

.fullscreen-close:hover {
  color: #151414;
  background: rgba(214, 10, 10, 0.956);
}






.read-more-section {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease-in-out;
}

.read-more-section.expanded {
  max-height: 5000px;
}

/* publication style */
 .publication {
  display: flex;
  flex-direction: column;
  gap: 0.0rem;              /* gap-6 */
  align-items: flex-start; /* items-start */
  background-color: #faf5ff; /* bg-purple-50 */
  padding: 0.5rem;         /* p-6 */
  border-radius: 0.75rem;  /* rounded-xl */
  border-bottom: 1px solid #e5e7eb;
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
}
    .title { font-weight: bold; font-size: 12px; }
    .authors, .journal { margin-top: 4px; font-style: italic; font-size: 12px;}
    .links a { margin-right: 10px; text-decoration: none; color: blue;font-size: 12px; }