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

body {
  font-family: system-ui, sans-serif;
  color: #ffffff;
  background-color: #000000;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}
main{
  margin-top: 10rem;
 
}
main.main-wrapper {
  display: flex;
  flex-direction: column;
  height: 100vh; /* Make sure main takes the full screen height */
  position: relative;
}

#particles-js {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  pointer-events: none;
  width: 100%;  /* Ensure the width covers the entire main section */
  height: 100%; /* Ensure the height covers the entire main section */
  z-index: -1; /* Keep the particle effect behind content */
}
.main-content {
  position: relative;
  z-index: 1;
  flex: 1; /* Take up all available space */
  padding: 2rem;
  overflow: hidden; /* Hide content overflow */
}

/* Navigation Bar */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: black;
  color: white;
  padding: 0.625rem 1.25rem;
  width: 100%;
  position: fixed;
  top: 0;
  z-index: 100;
}

nav .logo {
  width: 20.375rem;
  height: auto;
  margin-right: 20rem;
}
/* logo size */
/* Medium screens (tablets) */
@media (max-width: 1024px) {
  nav .logo {
      width: 16rem; /* Reduce logo size */
  }
}

/* Small screens (mobile) */
@media (max-width: 768px) {
  nav .logo {
      width: 12rem; /* Smaller size for mobile */
  }
}

/* Very small screens */
@media (max-width: 480px) {
  nav .logo {
      max-width: 1200px; /* Resize but keep aspect ratio */
      height: auto;
      width: 80%;
     margin-right: 1rem;
  
  }
}
/* Navbar List Items */
nav ul {
  list-style: none;
  display: flex;
  gap: 40px;
  position: relative;
}

/* Style Dropdown Parent */
nav ul .dropdown {
  position: relative;
}

/* Hide Dropdown Menu Initially */
nav ul .dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: rgba(0, 0, 0, 0.9);
  list-style: none;
  padding: 10px 0;
  width: 150px;
  display: none;
  text-align: left;
  border-radius: 5px;
}

/* Style Dropdown Links */
nav ul .dropdown-menu li a {
  color: white;
  text-decoration: none;
  padding: 10px 15px;
  display: block;
  transition: all 0.3s ease-in-out;
  position: relative;
}

/* Hover Effect - White Underline */
nav ul .dropdown-menu li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: red ;
  transform: scaleX(0);
  transition: transform 0.3s ease-in-out;
}

nav ul .dropdown-menu li a:hover::after {
  transform: scaleX(1);
}

/* Show Dropdown on Hover */
nav ul .dropdown:hover .dropdown-menu {
  display: block;
}

/* drop down box arrow */
.nav-link i {
  color: white;
  font-size: 12px;
  margin-left: 5px;
}

nav ul  li{
  padding-top: 10px;
}
nav ul li {
  list-style: none;
}

nav ul li a {
  color: white;
  text-decoration: none;
  position: relative;
  transition: color 0.3s;
  
}
/* Navbar Ticket Button (3D Red to White Gradient) */
nav .btn {
  background: red; /* Red to White gradient */
  border: none;
  color: black;
  padding: 12px 30px;
  font-size: 15px;
  font-weight: bold;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease-in-out;
  box-shadow: 0 6px 12px rgba(211, 210, 210, 0.3); /* 3D Shadow Effect */
  text-align: center;
  font-family: Arial, sans-serif;
  position: relative;
  display: inline-block;
}

/* Hover Effect (Turns White) */
nav .btn:hover {
  background: white;
  color: black;
  transform: scale(1.05) translateY(-3px); /* Lift effect */
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
}

/* Click Effect (Press Down) */
nav .btn:active {
  transform: scale(1) translateY(2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}


/* Underline hover effect */
nav ul li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.125rem;
  width: 100%;
  height: 0.125rem;
  background-color: red;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease-in-out;
}

nav ul li a:hover::after {
  transform: scaleX(1);
}

nav ul li a:hover {
  color: rgb(255, 147, 147);
}

/* Mobile Responsive Menu */
.icon {
  display: none;
  font-size: 1.5625rem;
  color: white;
  cursor: pointer;
}

.hamburger {
  display: none;
  cursor: pointer;
  color: #fff;
  font-size: 24px;
  z-index: 1000;
}


/* navbar-checking */
/* Mobile Navigation Overrides (for screens 768px and below) */
/* Modified Mobile Responsive Menu */
/* Mobile Menu Styles */
@media (max-width: 768px) {
  .hamburger {
      display: block;
      position: fixed;
      top: 20px;
      right: 20px; /* Right-aligned hamburger */
      font-size: 32px;
      cursor: pointer;
      z-index: 1000;
      background: none;
      border: none;
      color: white;
  }

  .nav-menu {
      position: fixed;
      left: -100%;
      top: 0;
      height: 100vh;
      width: 75%;
      background: rgba(0, 0, 0, 0.9);
      backdrop-filter: blur(10px);
      flex-direction: column;
      padding: 80px 30px 20px;
      transition: left 0.3s ease;
      z-index: 999;
      overflow-y: auto; /* Allow scrolling if needed */
  }

  .nav-menu.show {
      left: 0;
  }

  .dropdown-menu {
      position: relative;
      background: transparent !important;
      padding: 10px;
      border-radius: 5px;
      max-height: 0;
      overflow: hidden;
      opacity: 0;
      transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
  }

  .dropdown.active .dropdown-menu {
      display: block;
      max-height: 500px; /* Expand to fit content */
      opacity: 1;
      transition: max-height 0.3s ease-in, opacity 0.3s ease-in;
  }

  .dropdown.active + li {
      margin-top: 8rem; /* Push down the next menu item */
  }

  .menu-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: transparent;
      backdrop-filter: blur(5px);
      display: none;
      z-index: 998;
  }

  .menu-overlay.active {
      display: block;
  }

  .nav-menu .nav-item {
      padding: 15px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .dropdown > a {
      display: flex;
      justify-content: space-between;
      align-items: center;
  }
}









main {
  padding: 2rem;
  position: relative;
  z-index: 2;
}

h1 {
  font-weight: bold;
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 1.5rem;
  color: #ff2b2b;
  text-shadow: 0 0 10px rgba(255, 43, 43, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

h1 i {
  font-size: 2rem;
}

.tedx-intro {
  text-align: center;
  font-size: 1.2rem;
  color: #ffffff;
  margin-bottom: 3rem;
  opacity: 0.9;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
}

.tedx-intro:hover {
  opacity: 1;
  transform: scale(1.05);
  text-shadow: 0 0 15px rgba(255, 255, 255, 0.5);
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.speaker-card {
  background: rgba(17, 17, 17, 0.8);
  border-radius: 15px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 1px solid rgba(255, 43, 43, 0.1);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.speaker-card:hover, .speaker-card:active {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 0 30px rgba(255, 43, 43, 0.3);
  border-color: rgba(255, 43, 43, 0.5);
}

.speaker-image {
  width: 250px;
  height: 250px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #ff2b2b;
  transition: all 0.3s ease;
  position: relative;
}

.speaker-card:hover .speaker-image, .speaker-card:active .speaker-image {
  box-shadow: 0 0 35px rgba(255, 43, 43, 0.5);
  transform: rotate(5deg) scale(1.05);
}

.speaker-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: all 0.3s ease;
}

.speaker-card:hover .speaker-image::after, .speaker-card:active .speaker-image::after {
  transform: scale(1.1);
  opacity: 0;
}

.speaker-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.3s ease;
}

.speaker-card:hover .speaker-image img, .speaker-card:active .speaker-image img {
  transform: scale(1.1);
}

.speaker-card h2 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
  color: #fff;
  text-shadow: 0 0 5px rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
}

.speaker-card:hover h2, .speaker-card:active h2 {
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
  transform: scale(1.05);
}

.speaker-card .topic {
  color: #ff2b2b;
  font-size: 1.2rem;
  opacity: 0.9;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

.speaker-card:hover .topic, .speaker-card:active .topic {
  transform: scale(1.05);
  opacity: 1;
}

.speaker-card .topic i {
  font-size: 1.3rem;
}

.speaker-card .bio {
  color: #ffffff;
  font-size: 1rem;
  line-height: 1.6;
  opacity: 0.8;
  padding: 0 0.5rem;
  margin-bottom: 1.5rem;
  transition: all 0.3s ease;
}

.speaker-card:hover .bio, .speaker-card:active .bio {
  opacity: 1;
}

.tedx-quote {
  color: #ff2b2b;
  font-style: italic;
  font-size: 1.1rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s ease;
  text-shadow: 0 0 10px rgba(255, 43, 43, 0.3);
}

.speaker-card:hover .tedx-quote, .speaker-card:active .tedx-quote {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1200px) {
  .speakers-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  .speakers-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    padding: 0.5rem;
  }
  
  .speaker-image {
    width: 200px;
    height: 200px;
  }

  h1 {
    font-size: 2rem;
    flex-direction: column;
    gap: 0.5rem;
  }

  .tedx-intro {
    font-size: 1rem;
    margin-bottom: 2rem;
  }

  nav a {
    min-width: 7rem;
    font-size: 0.9rem;
  }

  .speaker-card {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  main {
    padding: 1rem;
  }

  .speaker-card {
    padding: 1rem;
  }

  .speaker-image {
    width: 180px;
    height: 180px;
  }

  .speaker-card .bio {
    font-size: 0.9rem;
  }

  .tedx-quote {
    font-size: 1rem;
  }

  .speaker-card h2 {
    font-size: 1.5rem;
  }

  .speaker-card .topic {
    font-size: 1.1rem;
  }
}



/* for the small screen  */
  

/* Enable hover effects on tap/click for mobile using .active */
.speaker-card.active,
.speaker-card:active {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 0 30px rgba(255, 43, 43, 0.3);
  border-color: rgba(255, 43, 43, 0.5);
}

.speaker-card.active .speaker-image {
  box-shadow: 0 0 35px rgba(255, 43, 43, 0.5);
  transform: rotate(5deg) scale(1.05);
}

.speaker-card.active .speaker-image::after {
  transform: scale(1.1);
  opacity: 0;
}

.speaker-card.active .speaker-image img {
  transform: scale(1.1);
}

.speaker-card.active h2 {
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
  transform: scale(1.05);
}

.speaker-card.active .topic {
  transform: scale(1.05);
  opacity: 1;
}

.speaker-card.active .bio {
  opacity: 1;
}

.speaker-card.active .tedx-quote {
  opacity: 1;
  transform: translateY(0);
}