html{
    overflow: auto;
   }
    body {

      font-family: "Poppins", sans-serif;
      background-color: #e4edfc;
      overflow-x: hidden;
      
    }

    h1, h2, h3, h4 {
      font-weight: 700;
      color: #00a3d9;
    }

    /* NAVBAR */
    .navbar {
      background: rgba(0, 0, 0, 0.85);
      backdrop-filter: blur(10px);
    }

    /* HERO SECTION */
    #hero {
      height: 50vh;
      background-color: #0a0d14;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
    }

    .swiper {
      width: 100%;
      height: 100%;
    }

    .swiper-slide {
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 0 5%;
    }

    .hero-content {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 50px;
    }

    .hero-text {
      flex: 1 1 400px;
      max-width: 600px;
      color: #e4edfc;
    }

    .hero-text h1 {
      font-size: 2.8rem;
      color: #00d9ff;
      margin-bottom: 20px;
    }

    .hero-text p {
      font-size: 1.1rem;
      color: #cfd8e3;
    }

    .hero-text .btn {
      margin-top: 25px;
      background: #00d9ff;
      color: #000;
      font-weight: 600;
      border: none;
      padding: 10px 25px;
      border-radius: 8px;
      transition: all 0.3s ease;
    }

    .hero-text .btn:hover {
      background: #00bde0;
    }

    .hero-image {
      flex: 1 1 400px;
      text-align: center;
    }

    .hero-image img {
      width: 100%;
      max-width: 420px;
      border-radius: 15px;
      animation: float 4s ease-in-out infinite;
    }

    @keyframes float {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-10px); }
    }

    /* Swiper Pagination */
    .swiper-pagination-bullet {
      background: #00d9ff;
    }

    /* LIGHT SECTIONS */
    section.light {
      background-color: #e4edfc;
      color: #1c1c1c;
      padding: 100px 0;
    }

    .feature-card {
      background: #fff;
      border-radius: 15px;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
      padding: 30px;
      transition: all 0.4s ease;
      border-top: 4px solid #00a3d9;
    }

    .feature-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    }

    footer {
      background: #101b30;
      color: #aaa;
      padding: 40px 0;
      text-align: center;
    }

    @media (max-width: 991px) {
      .hero-text {
        text-align: center;
      }
      .hero-content {
        margin-top: 200px;
        flex-direction: column-reverse;
      }
      .hero-text h1 {
        font-size: 2.2rem;
      }
    }

    /* Timeline base */
    .timeline { position: relative; margin-left: 50px; }
    .timeline::before {
      content: ""; position: absolute; top: 0; left: 20px;
      width: 3px; height: 100%; background: #00a3d9;
    }
    .timeline-item { position: relative; margin-bottom: 60px; }
    .timeline-icon {
      position: absolute; left: 0px; top: 0;
      width: 40px; height: 40px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-weight: bold;
    }
    .timeline-content {
      margin-left: 70px; background: #fff; border-radius: 10px;
      padding: 20px; box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    }
    .timeline-content img {
      height: 55px; max-width: 90px; cursor: pointer;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .timeline-content img:hover {
      transform: scale(1.03);
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    }
    @keyframes zoomIn {
      from {transform: scale(0.8); opacity: 0;}
      to {transform: scale(1); opacity: 1;}
    }

    /* Light background for better contrast */
    section.light {
      background-color: #e4edfc;
    }

    /* Responsive */
    @media (max-width: 768px) {
      .timeline::before { left: 10px; }
      .timeline-content { margin-left: 50px; }
    }
    .modal-zoom-img {
      width: 90%;
      max-width: 1000px;
      height: auto;
      max-height: 700px;
      animation: zoomIn 0.4s ease;
    }
    @keyframes zoomIn {
      from {transform: scale(0.8); opacity: 0;}
      to {transform: scale(1); opacity: 1;}
    }
    @media (max-width: 768px) {
      .timeline::before {
        left: 10px;
      }
      .timeline-content {
        margin-left: 50px;
      }
      .modal-zoom-img {
        width: 95%;
      }
    }
    .btn-close-white {
      filter: invert(1);
    }
    canvas {
      max-width: 650px;
      border-radius: 15px;
      background: #001b30;
    }
    .container-x {
      display: flex;
      width: 100vw;
      align-items: center;
      justify-content: center;
    }
    .animated-svg-wrapper {
        z-index: 1000;
        position: absolute;
        top: -60px;
        right: -140px;
        width: 154px;
        height: 176px;
        /* margin: auto; */
        /* display: flex; */
        /* align-items: center; */
        justify-content: center;
    }

    .animated-svg-wrapper svg {
      width: 100%;
      height: 100%;
      animation: rotateBlob 6s linear infinite;
    }

    @keyframes rotateBlob {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }
    .modal-body{
        max-height: 600px;
    }

    section.light {
    background: linear-gradient(180deg, #e4edfc 0%, #f3f7ff 100%);
    }

    /* Text gradient */
    .text-gradient {
    background: linear-gradient(90deg, #0d6efd, #00c9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    }

    /* Editor Window */
    .editor-frame, .example-card {
    background: #0e1521;
    border: 1px solid rgba(255,255,255,0.1);
    overflow: hidden;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    }
    .editor-frame:hover, .example-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.25);
    }
    .editor-header {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 6px 12px;
    color: #aaa;
    font-size: 0.85rem;
    }
    .editor-header .dot {
    width: 12px; height: 12px;
    border-radius: 50%;
    }
    .editor-title {
    margin-left: auto;
    font-weight: 500;
    color: #9ab9ff;
    }
    .editor-body pre {
    background: transparent !important;
    margin: 0;
    color: #b5f3ff;
    font-family: "Fira Code", monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    white-space: pre-wrap;
    }

    /* Troubleshooting Cards */
    .trouble-card {
    background: #ffffffc9;
    border: 1px solid #e0e0e0;
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
    }
    .trouble-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(13,110,253,0.2);
    }

    /* Animations */
    @keyframes fadeInCode {
    from {opacity: 0; transform: translateY(10px);}
    to {opacity: 1; transform: translateY(0);}
    }
    pre code {
    display: block;
    animation: fadeInCode 1s ease forwards;
    }
/* ------------------------------
BIOMETRIC IOT ROADMAP DESIGN
------------------------------ */

.roadmap-bioiot {
  background: linear-gradient(180deg, #f5faff 0%, #eef6ff 100%);
  position: relative;
  overflow: hidden;
}

/* Subtle animated overlay grid (IoT data mesh) */
.roadmap-bioiot::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(0, 200, 255, 0.2) 1px, transparent 0);
  background-size: 60px 60px;
  opacity: 0.2;
  animation: moveGrid 20s linear infinite;
}
@keyframes moveGrid {
  from { background-position: 0 0; }
  to { background-position: 100px 100px; }
}

.gradient-title {
  background: linear-gradient(90deg, #00bcd4, #007bff, #00c6ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.bioiot-timeline {
  position: relative;
  margin-left: 50px;
}

.timeline-scan-line {
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #00c6ff, #007bff);
  box-shadow: 0 0 20px rgba(0, 180, 255, 0.3);
  overflow: hidden;
}
.timeline-scan-line::after {
  content: "";
  position: absolute;
  top: -40px;
  left: 0;
  width: 100%;
  height: 60px;
  background: linear-gradient(to bottom, rgba(0, 255, 255, 0.6), transparent);
  animation: scanMove 3s linear infinite;
}
@keyframes scanMove {
  from { top: -60px; }
  to { top: 100%; }
}

/* Timeline items */
.timeline-step {
  position: relative;
  margin-bottom: 70px;
}

.node {
  position: absolute;
  left: -2px;
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, #ffffff, #e6f7ff);
  border: 2px solid #00bcd4;
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(0, 200, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #00bcd4;
  z-index: 2;
}
.node-green { border-color: #28a745; color: #28a745; }
.node-blue { border-color: #0dcaf0; color: #0dcaf0; }
.node-orange { border-color: #ffc107; color: #ffc107; }

.pulse {
  position: absolute;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: rgba(0, 200, 255, 0.15);
  animation: pulseIoT 2s infinite;
  z-index: -1;
}
@keyframes pulseIoT {
  0% { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(2.4); opacity: 0; }
}

/* Cards */
.bioiot-card {
  margin-left: 80px;
  padding: 25px 30px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 150, 255, 0.15);
  box-shadow: 0 8px 18px rgba(0, 150, 255, 0.08);
  transition: all 0.4s ease;
}
.bioiot-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 25px rgba(0, 180, 255, 0.2);
}
.bioiot-card ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
}
.bioiot-card li::before {
  content: "▸";
  color: #00bcd4;
  margin-right: 8px;
}
/* =======================
⚡ FUTURISTIC BIOMETRIC FAQ
======================= */

/* .futuristic-faq {
  background: radial-gradient(circle at 80% 20%, #f5faff 0%, #eaf3ff 100%);
  position: relative;
  overflow: hidden;
} */

/* fingerprint + circuit background */
.futuristic-faq::before {
  content: "";
  /* position: absolute; */
  inset: 0;
  background: 
    url('https://www.transparenttextures.com/patterns/circuit-board.png'),
    radial-gradient(circle at 80% 20%, rgba(0, 195, 255, 0.08) 0%, transparent 70%),
    radial-gradient(circle at 10% 80%, rgba(0, 150, 255, 0.08) 0%, transparent 70%);
  mix-blend-mode: overlay;
  opacity: 0.6;
  animation: pulseBG 20s infinite alternate ease-in-out;
  z-index: 0;
}
@keyframes pulseBG {
  0% { transform: scale(1) rotate(0deg); opacity: 0.5; }
  100% { transform: scale(1.05) rotate(2deg); opacity: 0.7; }
}

/* heading gradient */
.gradient-title {
  background: linear-gradient(90deg, #00e5ff, #007bff, #00d0ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 1px;
}

/* holographic card effect */
.holo-card {
  border: 1px solid rgba(0, 180, 255, 0.25);
  background: linear-gradient(135deg, rgba(255,255,255,0.75), rgba(245,250,255,0.95));
  backdrop-filter: blur(10px);
  border-radius: 16px;
  margin-bottom: 25px;
  box-shadow: 0 0 25px rgba(0, 180, 255, 0.05);
  overflow: hidden;
  position: relative;
  transition: all 0.4s ease;
}
.holo-card::before {
  content: "";
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, transparent, #00d0ff, transparent);
  animation: scanline 6s infinite linear;
}
@keyframes scanline {
  from { left: -100%; }
  to { left: 100%; }
}
.holo-card:hover {
  transform: translateY(-4px);
}

/* accordion buttons */
.accordion-button {
  font-weight: 600;
  color: #00294d;
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 20px;
  align-items: center;
}
.accordion-button:not(.collapsed) {
  color: #007bff;
  background: rgba(0, 200, 255, 0.05);
}
.accordion-button::after {
  filter: brightness(1.3);
}

/* glowing icon */
.icon-glow {
  display: inline-flex;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-right: 10px;
  position: relative;
  overflow: hidden;
}
.icon-glow::before {
  content: "";
  position: absolute;
  width: 200%;
  height: 200%;
  animation: glowPulse 2.5s infinite ease-in-out;
}
@keyframes glowPulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
}

/* accordion body */
.accordion-body {
  padding: 20px 30px;
  border-left: 3px solid #00bcd4;
  color: #1c2c3c;
  font-size: 15px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 0 0 12px 12px;
  box-shadow: inset 0 0 8px rgba(0, 200, 255, 0.08);
}
/* ===========================
🎨 FULLSCREEN VIDEO DESIGN
=========================== */
#video-section {
  background: linear-gradient(75deg, #e4edfc 0%, #f6f9ff 100%);
  position: relative;
  overflow: hidden;
  padding-top: 80px;
  padding-bottom: 80px;
}

#video-section h2 {
  color: #00a3d9;
  letter-spacing: 0.5px;
}

.video-frame-container {
  position: relative;
  width: 100%;
  max-width: 1000px;
  aspect-ratio: 16 / 9;
  margin: 0 auto;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.video-frame-container:hover {
  transform: scale(1.02);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}

.video-frame {
  width: 100%;
  height: 100%;
  border: none;
}

/* App Store badges */
.store-badge {
  width: 160px;
  height: auto;
  transition: transform 0.3s ease;
}
.store-badge:hover {
  transform: translateY(-5px);
}

/* Optional glowing border animation */
.video-frame-container::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 20px;
  border: 2px solid rgba(0, 200, 255, 0.4);
  animation: glowBorder 4s infinite linear;
  pointer-events: none;
}
@keyframes glowBorder {
  0% { box-shadow: 0 0 10px rgba(0, 255, 200, 0.3); }
  50% { box-shadow: 0 0 30px rgba(0, 200, 255, 0.6); }
  100% { box-shadow: 0 0 10px rgba(0, 255, 200, 0.3); }
}

/* Responsive design */
@media (max-width: 768px) {
  #video-section {
    border-radius: 0;
    padding: 50px 15px;
  }
  .store-badge {
    width: 140px;
  }
}
.custom-btn {
  transition: all 0.3s ease; /* smooth animation */
}

.custom-btn:hover {
  background-color: #0dcaf0; /* slightly lighter cyan */
  color: #fff;
  transform: translateY(-2px); /* gentle lift effect */
  box-shadow: 0 6px 15px rgba(13, 202, 240, 0.4);
}