body {
  font-family: sans-serif;
  overscroll-behavior: none;
  background-color: #0A192F;
  margin: 0;
padding: 10px;}
h1 {
  font-size: clamp(2rem, 4vw, 3rem);
}
h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}
.banner-title {
  font-weight: 700;
  text-transform: capitalize;
}
p {
  opacity: 0.9;
}

#bg-video {
  position: fixed;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  object-fit: cover;
  transform: translate(-50%, -50%);
  z-index: -1;
  background: black; /* Fallback background */
}

/* Extra responsiveness for very tall devices (mobile portrait) */
@media (max-aspect-ratio: 3/4) {
  #bg-video {
    width: 100%;
    height: auto;
  }
}

/* Extra responsiveness for very wide devices (ultrawide monitors, landscape phones) */
@media (min-aspect-ratio: 16/9) {
  #bg-video {
    width: auto;
    height: 100%;
  }
}


main {
  position: relative;
  z-index: 2;
}  .content-section { background-color: rgba(249, 250, 251, 0.9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-radius: 1rem; margin: 2rem 1rem; padding: 4rem 2rem; }
        @media (min-width: 768px) { .content-section { margin: 4rem 2rem; } }
        
     /* =========================
   Navigation & Header
========================= */
header.scrolled { 
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
              0 2px 4px -1px rgba(0, 0, 0, 0.06);
  border-bottom: 1px solid rgba(229, 231, 235, 0.8);
  background: rgba(10, 25, 47, 0.8); /* slight backdrop for readability */
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.3s ease-in-out;
}

.nav-link {
  position: relative;
  padding: 0.5rem 0.75rem;
  font-size: clamp(0.9rem, 2vw, 1rem);
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #3b82f6;
  transform: scaleX(0);
  transform-origin: bottom right;
  transition: transform 0.3s ease-out;
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

.nav-link.active { 
  color: #3b82f6; 
  font-weight: 600; 
}

/* =========================
   Mobile Menu Button
========================= */
#mobile-menu-button {
  width: 28px;
  height: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  position: relative;
  z-index: 100;
  transition: transform 0.3s ease-in-out;
}

.hamburger-line {
  width: 100%;
  height: 3px;
  background-color: #d3e1f5;
  border-radius: 3px;
  transition: all 0.3s ease-in-out;
}

#mobile-menu-button.open {
  transform: rotate(90deg);
}

#mobile-menu-button.open .hamburger-line:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}
#mobile-menu-button.open .hamburger-line:nth-child(2) {
  opacity: 0;
}
#mobile-menu-button.open .hamburger-line:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
}

/* =========================
   Responsive Navigation
========================= */
@media (max-width: 900px) {
  .nav { 
    display: none;
  }

  /* Mobile menu panel (full-screen slide-in) */
  .mobile-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    z-index: 99;
  }

  .mobile-panel.open {
    transform: translateX(0);
  }

  .mobile-panel .nav-link {
    font-size: 1.25rem;
    margin: 1rem 0;
    text-align: center;
  }

  #mobile-menu-button {
    display: flex;
  }
}

/* Show desktop nav & hide mobile button */
@media (min-width: 901px) {
  .mobile-panel,
  #mobile-menu-button {
    display: none;
  }
}

        /* Animations & Interactive Elements */
        .g-fade-in { opacity: 0; transform: translateY(30px); }
        .interactive-card { transition: transform 0.3s ease, box-shadow 0.3s ease; transform-style: preserve-3d; cursor: pointer; }
        
        /* Hero Scroll Indicator */
        .scroll-indicator { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); }
        .scroll-indicator span { display: block; width: 24px; height: 24px; border-bottom: 2px solid white; border-right: 2px solid white; transform: rotate(45deg); animation: bounce 2s infinite; }
        @keyframes bounce { 0%, 20%, 50%, 80%, 100% { transform: translateY(0) rotate(45deg); } 40% { transform: translateY(-10px) rotate(45deg); } 60% { transform: translateY(-5px) rotate(45deg); } }

        /* Gradient Buttons */
        .btn-gradient { background-image: linear-gradient(to right, #3b82f6, #60a5fa); }
        .btn-gradient:hover { background-image: linear-gradient(to right, #2563eb, #3b82f6); }

        /* Swiper 3D Container */
.swiper-container-3d {
  width: 100%;
  padding-top: 80px;
  padding-bottom: 80px;
  perspective: 2000px;
}

.swiper-slide-3d {
  position: relative;
  background-position: center;
  background-size: cover;
  width: 360px;
  height: 480px;
  border-radius: 1.5rem;
  overflow: hidden;
  cursor: pointer;
  box-shadow: 0 25px 60px rgba(0,0,0,0.7);
  transform-style: preserve-3d;
  transition: transform 0.8s ease, box-shadow 0.8s;
  animation: slideZoomIn 1.2s ease both;
}

/* Background video/image */
.swiper-slide-3d video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Shine sweep reflection */
.swiper-slide-3d::after {
  content: "";
  position: absolute;
  top: -100%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(120deg, transparent 40%, rgba(255,255,255,0.25) 50%, transparent 60%);
  transform: rotate(25deg);
  animation: shineSweep 8s infinite;
  z-index: 2;
}

@keyframes shineSweep {
  0% { transform: translateX(-100%) rotate(25deg); }
  40% { transform: translateX(150%) rotate(25deg); }
  100% { transform: translateX(150%) rotate(25deg); }
}

/* Hover 3D tilt */
.swiper-slide-3d:hover {
  transform: translateY(-15px) rotateY(12deg) rotateX(5deg) scale(1.05);
  box-shadow: 0 40px 90px rgba(0,0,0,0.9), 0 0 40px rgba(147,51,234,0.6);
}

/* Overlay content */
.swiper-slide-3d .slide-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.75rem;
  background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
  color: #fff;
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.5s ease;
  z-index: 3;
}

.swiper-slide-3d:hover .slide-overlay {
  opacity: 1;
  transform: translateY(0);
}

/* Overlay content styles */
.slide-overlay h4 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 10px rgba(0,0,0,0.7);
}

.slide-overlay p {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 1rem;
}

/* Futuristic glowing button */
.slide-overlay button {
  background: linear-gradient(45deg, #4f46e5, #9333ea, #a211db);
  background-size: 300% 300%;
  animation: gradientFlow 6s ease infinite;
  padding: 0.65rem 1.6rem;
  border-radius: 9999px;
  font-size: 0.95rem;
  font-weight: 600;
  color: white;
  border: none;
  cursor: pointer;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.slide-overlay button:hover {
  transform: scale(1.12);
  box-shadow: 0 0 25px rgba(147,51,234,0.8);
}

/* Animations */
@keyframes gradientFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes slideZoomIn {
  from { opacity: 0; transform: scale(0.9) translateY(50px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
        /* Modal Styles */
        .modal { transition: opacity 0.3s ease, transform 0.3s ease; }
        .modal.hidden { pointer-events: none; }

        /* Technology Section Tabs */
        .tech-tab { cursor: pointer; padding: 0.5rem 1rem; border-radius: 0.5rem; transition: background-color 0.3s, color 0.3s; }
        .tech-tab.active { background-color: #3b82f6; color: white; }

        /* Floating Action Button */
        #fab-container { position: fixed; bottom: 2rem; right: 2rem; z-index: 90; }
        .fab-options { transition: all 0.3s ease; }

        /* Service & Product Card Image */
        .service-card img, .product-card img { transition: transform 0.5s ease; }
        .service-card:hover img, .product-card:hover img { transform: scale(1.1); }

        /* Banner Slider */
        .swiper-container-banner { width: 100%; height: auto; border-radius: 1rem; overflow: hidden; }
        .swiper-slide img { display: block; width: 100%; height: 100%; object-fit: cover; }
        .swiper-button-next-banner, .swiper-button-prev-banner { color: #ffffff !important; background-color: rgba(0, 0, 0, 0.4); border-radius: 50%; width: 44px; height: 44px; transition: background-color 0.3s ease; }
        .swiper-button-next-banner:hover, .swiper-button-prev-banner:hover { background-color: rgba(0, 0, 0, 0.6); }
        .swiper-button-next-banner::after, .swiper-button-prev-banner::after { font-size: 20px !important; font-weight: bold; }
        .swiper-pagination-banner .swiper-pagination-bullet-active { background: #ffffff !important; }
        .banner-slide-content { position: absolute; bottom: 0; left: 0; right: 0; top: 0; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: 10%; color: white; text-align: left; }
        .banner-title { font-size: 2.5rem; font-weight: 200; line-height: 1.2; text-shadow: 2px 2px 8px rgba(0,0,0,0.7); }
        .banner-description { font-size: 1.1rem; max-width: 500px; margin-top: 1rem; text-shadow: 1px 1px 4px rgba(0,0,0,0.7); }
        .banner-button { margin-top: 1.5rem; background-color: white; color: #3b82f6; padding: 0.75rem 1.5rem; border-radius: 0.5rem; font-weight: 600; text-decoration: none; transition: all 0.3s ease; }
        .banner-button:hover { background-color: #f0f0f0; transform: translateY(-2px); }

       @media (max-width: 375px) {
  body { padding: 0; }
  .content-section { 
    margin: 0.5rem;
    padding: 1.5rem 1rem;
  }
  .banner-title { font-size: 1.3rem; text-align: center; }
  .swiper-slide-3d { width: 95%; max-width: 300px; }
  .slide-overlay h4 { font-size: 1rem; }
  .slide-overlay p { font-size: 0.85rem; }
}

/* Small Phones: 376px - 480px */
@media (min-width: 376px) and (max-width: 480px) {
  .content-section {
    margin: 0.8rem;
    padding: 2rem 1rem;
  }
  .banner-title { font-size: 1.5rem; }
  .swiper-slide-3d { width: 90%; }
}

/* Medium Phones & Phablets: 481px - 768px */
@media (min-width: 481px) and (max-width: 768px) {
  .content-section {
    margin: 1rem;
    padding: 2.5rem 1.5rem;
  }
  .banner-title { font-size: 1.8rem; }
  .swiper-slide-3d { width: 80%; }
  .slide-overlay h4 { font-size: 1.3rem; }
}

/* Tablets & Small Laptops: 769px - 1024px */
@media (min-width: 769px) and (max-width: 1024px) {
  .content-section {
    margin: 2rem 1.5rem;
    padding: 3rem 2rem;
  }
  .banner-title { font-size: 2.2rem; }
  .swiper-slide-3d { width: 70%; }
}

/* Keep Desktop Styles Above 1025px */
@media (min-width: 1025px) {
  .content-section {
    margin: 4rem 2rem;
    padding: 4rem 3rem;
  }
  .swiper-slide-3d { width: 360px; }
}

 /* Smooth continuous scrolling */
    @keyframes slideLoop {
      0% { transform: translateX(0); }
      100% { transform: translateX(-50%); }
    }