/* animations */
    /* GENERAL FADE-IN ANIMATION */
    .fade-on-scroll {
      opacity: 0;
      transform: translateY(20px);
      transition: all 0.8s ease-out;
    }

    .fade-on-scroll.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* Stagger speaker images individually */
    .speaker-img.fade-on-scroll:nth-of-type(1) { transition-delay: 0.2s; }
    .speaker-img.fade-on-scroll:nth-of-type(2) { transition-delay: 0.4s; }
    .speaker-img.fade-on-scroll:nth-of-type(3) { transition-delay: 0.6s; }

    /* Stagger Welcome Note title + container */
    #welcome .section-title.fade-on-scroll { transition-delay: 0.1s; }
    #welcome .container.fade-on-scroll { transition-delay: 0.3s; }

    /* Tracks: stagger cards */
    .track-card.fade-on-scroll:nth-child(1) { transition-delay: 0.1s; }
    .track-card.fade-on-scroll:nth-child(2) { transition-delay: 0.2s; }
    .track-card.fade-on-scroll:nth-child(3) { transition-delay: 0.3s; }
    .track-card.fade-on-scroll:nth-child(4) { transition-delay: 0.4s; }
    .track-card.fade-on-scroll:nth-child(5) { transition-delay: 0.5s; }

:root{
  --purple: #9b30ff;
  --muted: #d1d5db;
  --black: #000;
  --glass: rgba(255,255,255,0.03);
  --text-shadow: 0 6px 24px rgba(155,48,255,0.08);
}
html, body {
  overflow-x: clip;
}

body {
  margin:0;
  font-family: 'Barlow', sans-serif;
  /* font-family: 'Public Sans', sans-serif; */
  color: var(--muted);
  background: #000;
}



/* Sub-backgrounds */
.sub-bg {
    position: absolute;
    left: 0;
    width: 100%;
    height: 100vh; /* each sub-background takes full viewport height */
    background-repeat: no-repeat;
    background-position: top center;
    background-size: contain; /* or 'cover' if you want it to fill */
    z-index: -5; /* above main bg, below content */
}

/* Assign each sub-background its SVG */
#page-1 {
  background-image: url('../assets/PAGE-1-1.webp');
  width: 100%;
  height: 200vh; /* Adjust as needed based on image height */
  margin-top: 13vh;
  margin-left: -22vh;
}
#page-2 { background-image: url('../assets/PAGE-2-2.webp'); top: 20vh; background-size: 60%; margin-left: 12%;}



#page-3 { background-image: url('../assets/PAGE-3-3.webp'); top: 201vh; background-size: 65%; margin-left: -6vh;}
#page-4 {
  background-image: url('../assets/PAGE-1-1.webp');
  width: 97%;
  height: 200vh; /* Adjust as needed based on image height */
  margin-top: 236vh;
  margin-left: 16vh;
}
#page-5 { background-image: url('../assets/PAGE-5-5.webp'); top: 288vh; background-size: 80%;}
#page-6 { background-image: url('../assets/PAGE-6-6.webp'); top: 395vh; background-size: 90%; height: 200vh; margin-left: -52vh;}
#page-7 { background-image: url('../assets/PAGE-7-7.webp'); top: 470vh; background-size: 50%; margin-left: 29vh;}
#page-8 { background-image: url('../assets/PAGE-8-8.webp'); top: 552vh; margin-left: -68vh; background-size: 60%}




.glow1-bg {
  position: absolute;
  width: 100%;
  height: 100%;
  /* background-color: black; */
}

.glow1-bg::before {
  content: "";
  position: absolute;
  top: 33%;
  left: 15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    #9b30ff7a 0%,
    rgba(155, 48, 255, 0.1) 70%,
    transparent 100%
  );
  filter: blur(80px); /* smooth out the edges */
  pointer-events: none;
}

.glow2-bg {
  position: absolute;
  width: 100%;
  height: 100%;
  /* background-color: black; */
}

.glow2-bg::before {
  content: "";
  position: absolute;
  top: 192%;
  left: -40rem;
  width: 1300px;
  height: 1300px;
  background: radial-gradient(
    circle,
    #9b30ff63 0%,
    rgba(155, 48, 255, 0.1) 100%,
    transparent 100%
  );
  filter: blur(80px); /* smooth out the edges */
  pointer-events: none;
}


.glow3-bg {
  position: absolute;
  width: 100%;
  height: 100%;
  /* background-color: black; */
}

.glow3-bg::before {
  content: "";
  position: absolute;
  top: 380%;
  left: 70%;
  width: 800px;
  height: 800px;
  background: radial-gradient(
    circle,
    #9b30ff4f 0%,
    rgba(155, 48, 255, 0.1) 70%,
    transparent 100%
  );
  filter: blur(80px); /* smooth out the edges */
  pointer-events: none;
}

.glow4-bg {
  position: absolute;
  width: 100%;
  height: 100%;
  /* background-color: black; */
}

.glow4-bg::before {
  content: "";
  position: absolute;
  top: 545%;
  left: -20rem;
  width: 800px;
  height: 800px;
  background: radial-gradient(
    circle,
    #9b30ff4f 0%,
    rgba(155, 48, 255, 0.1) 70%,
    transparent 100%
  );
  filter: blur(80px); /* smooth out the edges */
  pointer-events: none;
}



@media (min-width: 1400px) {
  #page-1{
    width: 88%;
  }
  #page-3{
    top: 195vh; background-size: 58.2%;
  }
  #page-4 {
    margin-top: 225vh;
  }
  #page-5{
    top: 272vh;
  }
  #page-6{
    top: 375vh; background-size: 80%;
  }
  #page-7{
    top: 445vh;
  }
  #page-8{
    top: 525vh; background-size: 50%;
  }

  .glow3-bg::before {
    top: 360%; left: 80%;
  }
  .glow4-bg::before {
    top: 500%; left: -28rem;   width: 900px; height: 900px;
  }
}






@media (max-width: 991.98px) { /* below lg */
  .cancel-margin {
    margin-left: 0 !important;
  }
}





.bold-purple{
  font-size: 0.9rem;
  color: var(--purple);
  font-weight: bold;
  line-height: 0.8;
}


/* Default: no manual gap (for ≤768px) */
.custom-gap {
  justify-content: center;
}

/* Apply custom gap only for >768px */
@media (min-width: 768px) {
  .custom-gap {
    justify-content: center;
    gap: 17%;
  }
}









/* full-bleed background image */
/* .site-bg {
  position: fixed;
  inset: 0;
  background: url('assets/background.svg') center center / cover no-repeat fixed;
  z-index: -3;
} */

/* subtle dark overlay to improve contrast */
.bg-overlay {
  position: fixed;
  inset: 0;
  /* background: linear-gradient(180deg, rgba(0,0,0,0.65), rgba(0,0,0,0.8)); */
  z-index: -2;
}

/* NAVBAR */
.navbar-absolute {
    background: transparent;
    position: absolute;
    top: 0;
    width: 100%;
    z-index: 40;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

/* Optional: when menu is open on mobile */
.navbar-relative {
    position: relative !important;
}

.navbar-absolute.scrolled {
    background: rgba(15, 12, 29, 0.95);
    backdrop-filter: blur(10px);
    padding: 0.5rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.navbar-brand { 
    color: #fff; 
    letter-spacing: 1px; 
    font-weight: 700; 
    font-size: 1.5rem;
}

.nav-link { 
    color: rgba(255, 255, 255, 0.916); 
    margin-right: 0.5rem;
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

/* CTA button */
.btn-cta {
    /* background: linear-gradient(90deg, var(--purple), #7d24d9); */
    color: var(--purple);
    text-decoration: none;
    border-radius: 36px;
    /* padding: 10px 20px; */
    /* box-shadow: 0 8px 26px rgba(155, 48, 255, 0.18); */
    border: none;
    font-size: 2.5rem;
    font-weight: 700;
    transition: all 0.3s ease;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(155, 48, 255, 0.3);
}

/* HERO */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6.5rem; /* account for navbar */
    padding-bottom: 4rem;
    position: relative;
    /* background: linear-gradient(135deg, rgba(15, 12, 29, 0.9), rgba(15, 12, 29, 0.8)), 
                url('https://images.unsplash.com/photo-1620712943543-bcc4688e7485?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1800&q=80') center/cover no-repeat; */
}

.hero-title {
    color: #ffffff;
    font-weight: 900;
    line-height: 0.95;
    font-size: clamp(34px, 5.3vw, 84px);
    margin: 0;
    text-transform: none;
    letter-spacing: -1px;
    text-shadow: 0 6px 30px rgba(0, 0, 0, 0.6);
}

.hero-sub {
    display: block;
    font-weight: 300;
    color: rgba(209, 213, 219, 0.95);
    font-size: clamp(22px, 2.2vw, 36px);
    margin-top: 6px;
}

.hero-lead {
    color: rgba(243, 243, 243, 0.842);
    max-width: 900px;
    margin-top: 1rem;
    margin-left: 7.8%;
    font-size: clamp(34px, 2.3vw, 84px);
    font-weight: 100;
    line-height: 0.95;
}

/* AI+X badge on right */
.ai-x-badge {
    display: inline-block;
    padding: 20px 26px;
    border-radius: 14px;
    background: linear-gradient(180deg, rgba(155, 48, 255, 0.18), rgba(155, 48, 255, 0.08));
    border: 1px solid rgba(155, 48, 255, 0.18);
    color: var(--purple);
    font-weight: 900;
    font-size: 34px;
    text-shadow: 0 8px 40px rgba(155, 48, 255, 0.06);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(155, 48, 255, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(155, 48, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(155, 48, 255, 0); }
}

.ai-x-badge .year { 
    display: block; 
    font-size: 18px; 
    color: rgba(255, 255, 255, 0.85); 
    font-weight: 700; 
}

/* info pills */
.info-pill {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    padding: 8px 12px;
    min-width: 150px;
    color: var(--muted);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Section styling */
section {
    padding: 5rem 0;
}

/* .section-title {
    font-weight: 800;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #fff;
    position: relative;
} */

.section-title:after {
    content: none;
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--purple), #7d24d9);
    border-radius: 2px;
}

/* Tracks section */
.track-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.track-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border-color: rgba(155, 48, 255, 0.2);
}

.track-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--purple);
}
/* Footer */
footer {
    background: rgba(10, 8, 20, 0.95);
    padding: 4rem 0 2rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    margin-right: 0.5rem;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--purple);
    transform: translateY(-3px);
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .hero {
        text-align: center;
        padding-top: 5rem;
    }
    
    .hero-lead {
        margin-left: auto;
        margin-right: auto;
    }
    
    .ai-x-badge {
        margin-top: 3rem;
    }
}

.navbar-logo {
    height: 60px;   /* adjust to fit your navbar */
    width: auto;    /* keeps aspect ratio */
    display: block;
}
.event-card {
    max-width: 600px;
    width: 100%;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    border-radius: 10px;
        }
/* SECTIONS */
.section {
  padding-top: 4rem;
  padding-bottom: 4rem;
}
/* .section-dark { background: linear-gradient(180deg, rgba(0,0,0,0.25), rgba(0,0,0,0.3)); } */

/* section title */
.section-title {
  color: var(--purple);
  font-weight: 900;
  /* font-size: clamp(24px, 6vw, 64px); */
  font-size: 4.1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
  text-align: center;
  text-shadow: 0 0 50px rgb(155, 48, 255);
}


/* welcome */
/* .speaker-img { width: 150px; height:150px; object-fit:cover; border: 3px solid rgba(155,48,255,0.12); box-shadow: 0 12px 40px rgba(0,0,0,0.6); } */
.speaker-img {
  width: 155px;
  height: 155px;
  object-fit: cover;
  border: 3px solid rgba(155,48,255,0.2);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  /* margin-left: 20px; */
}
.speaker-small { width:64px; height:64px; object-fit:cover; border:2px solid rgba(155,48,255,0.08); }

/* lead paragraph styling */
.lead-paragraph {
    color: rgb(188 192 197);
    font-size: 1.12rem;
    line-height: 1.3;
}
.lead-paragraph2 {
  color: rgba(209,213,219,0.95);
  font-size: 0.9rem;
  line-height: 1.2;
}

/* TRACKS cards */
.track-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.018), rgba(255,255,255,0.01));
  border-radius: 14px;
  border: 1px solid rgba(155,48,255,0.07);
  padding: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.6);
}
.track-icon {
  font-size: 32px;
  color: var(--purple);
  display:block;
  text-shadow: 0 10px 30px rgba(155,48,255,0.08);
}
.track-title { font-weight:700; color: rgba(209,213,219,0.95); }

/* contact grid */
.contact-grid {
  /* display:flex; */
  /* gap:2rem; */
  justify-content: center;
  /* flex-wrap:wrap; */
  color: rgba(209,213,219,0.9);
  /* background: rgba(255,255,255,0.02); */
  /* padding: 18px; */
  /* border-radius: 10px; */
  /* border: 1px solid rgba(155,48,255,0.06); */
  /* font-size: larger; */
  font-size: 1.4rem;
}
.contact-grid strong{
  color: var(--purple);
  font-size: 1.8rem;
}


/* footer */
.footer-dark {
  background: linear-gradient(180deg, rgba(0,0,0,0.9), rgba(0,0,0,1));
}

/* RESPONSIVE TWEAKS */
@media (max-width: 991px){
  .ai-x-badge { margin-top: 0.5rem; }
  .contact-grid { flex-direction:column; align-items:center; }
}

/* small devices */
@media (max-width: 575px){
  .navbar-absolute { padding: 0.6rem 0; position: relative; }
  .nav-link { font-size: 0.92rem; }
  .speaker-img { width:120px; height:120px; }
  .hero-lead { font-size: .98rem; }
}

.partner-img {
  max-height: 110px;
  margin: 20px;
  filter: grayscale(100%) brightness(200%);
  transition: all 0.3s ease;
}

.partner-img:hover {
  filter: grayscale(0%) brightness(100%);
  transform: scale(1.05);
}

.sponsor-img {
  max-height: 80px;
  margin: 20px;
  filter: grayscale(100%) brightness(200%);
  transition: all 0.3s ease;
}

.sponsor-img:hover {
  filter: grayscale(0%) brightness(100%);
  transform: scale(1.05);
}


.smaller-image{
  max-width: 15rem;
}







        .track-card {
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            align-items: center;
            padding: 20px 15px;
        }
        
        .track-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        
        .track-icon-container {
            width: 78px;
            height: 78px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            flex-shrink: 0;
        }
        
        .track-icon {
            width: 100%;
            height: auto;
            object-fit: contain;
        }
        
        .track-title {
            font-size: 1.1rem;
            font-weight: 600;
            text-align: left;
            line-height: 0.8;
            text-align: center;
        }
        
        .custom-gap {
            justify-content: center;
        }



@media (max-width: 768px) {
  .track-card {
      padding: 15px 10px;
  }
  
  .track-icon-container {
      width: 50px;
      height: 50px;
      margin-right: 12px;
  }
  
  .track-title {
      font-size: 1rem;
  }

  .smaller-image{
    max-width: 10rem;
  }
  /* Navigation */
  .navbar-absolute {
    padding: 0.5rem 0;
  }
  
  .navbar-brand {
    margin: 0 auto;
  }
/*   
  .navbar-collapse {
    background: rgba(0, 0, 0, 0.9);
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 8px;
  } */
  
  .navbar-nav {
    gap: 20px !important;
    text-align: center;
  }
  
  /* Hero section */
  .hero {
    margin-top: 0% !important;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
    line-height: 1.2;
  }
  
  .hero-lead {
    font-size: 1.2rem !important;
    margin-left: 0 !important;
    line-height: 1.4;
  }
  
  .btn-cta {
    font-size: 1.5rem;
    margin-top: 1rem;
  }
  
  /* Event details */
  .display-3 {
    font-size: 2.5rem;
  }
  
  .row.text-start.align-items-center {
    text-align: start !important;
  }
  
  .row.text-start.align-items-center .col-12 {
    margin-bottom: 1.5rem;
  }
  
  /* Welcome section */
  .section-title {
    font-size: 2.5rem !important;
  }
  
  #welcome .container {
    margin-right: 0 !important;
  }
  
  .speaker-img {
    width: 120px;
    height: 120px;
    margin: 0 auto 1rem;
  }
  
  .col-lg-3, .col-lg-8 {
    text-align: left;
    margin-left: 0 !important;
    padding-left: 15px !important;
    padding-right: 15px;
  }
  
  .lead-paragraph, .lead-paragraph2 {
    font-size: 1rem !important;
    text-align: left;
  }
  .for-phone-size{
    padding-left: 3rem !important;
  }
  
  /* Objectives section */
  .objective-text {
    text-align: center;
    font-size: 1rem;
    padding: 0 10px;
  }
  
  
  /* Contact section */
  .contact-grid {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
    padding: 15px;
  }
  
  .contact-grid div {
    font-size: 1rem;
  }
  
  .contact-grid strong {
    font-size: 1.2rem !important;
  }
  
  .contact-grid span, .contact-grid a {
    font-size: 1.2rem !important;
    padding-left: 0 !important;
  }
  
  /* Sponsors section */
  .partner-img{
    max-height: 75px;
    margin: 10px;
  }
  .sponsor-img {
    max-height: 50px;
    margin: 10px;
  }
  
  /* Background adjustments for mobile */
  .sub-bg {
    background-size: cover !important;
    margin-left: 0 !important;
  }
  
  #page-1 {
    height: 100vh;
    margin-top: 0;
  }
  
  /* Reduce spacing on mobile */
  .py-6, .pt-6, .pb-5 {
    padding-top: 2rem !important;
    padding-bottom: 2rem !important;
  }
  
  .mt-4, .mb-4 {
    margin-top: 1rem !important;
    margin-bottom: 1rem !important;
  }
  
  br {
    display: none;
  }
}

/* Additional small screen adjustments */
@media (max-width: 576px) {
  /* .navbar .container-fluid{
    flex-wrap: revert !important;
  } */
   .contact-phone{
      display: flex;
      flex-direction: column;
   }
   .contact-grid {
      text-align: left;
    }
  .navbar-brand {
    margin-left: 7vh !important;
  }
  .navbar-logo {
    height: 45px;
}
  .hero-title {
    font-size: 2.6rem;
    text-align: left;
  }
  
  .hero-lead {
    font-size: 1.2rem !important;
    text-align: left;
    margin-left: 3rem !important; 
  }
  
  .section-title {
    font-size: 2rem !important;
  }
  
  .container-fluid.px-5 {
    padding-left: 15px !important;
    padding-right: 15px;
  }
  
  .btn-cta {
    font-size: 1.2rem;
  }
}