/* Custom colors and fonts */
    body {
      font-family: 'Roboto', sans-serif;
      color: #282828;
      background-color: #fff;
      padding-top: 140px;
    }

    header {
      background-color: #010006;
      padding: 10px 0;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      width: 100%;
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    }

    .logo img {
      height: 120px;
      width: 400px;
      max-width: 100%;
      height: auto;
      max-height: 120px;
    }
    
    nav ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      gap: 25px;
      align-items: center;
      color: #ddae68;
      font-family: 'Roboto Condensed', sans-serif;
      font-size: 14px;
      flex-wrap: wrap;
    }

    nav ul li a {
      color: #ddae68;
      font-weight: 500;
      text-decoration: none;
      cursor: pointer;
      padding: 6px 0;
      display: inline-block;
    }

    nav ul li a.active,
    nav ul li a:hover,
    nav ul li:hover > a {
      color: #04bcf0;
    }

    nav ul li.has-submenu {
      position: relative;
    }

    nav ul li ul.submenu {
      position: absolute;
      top: 100%;
      left: 0;
      background: #fff;
      min-width: 220px;
      box-shadow: 0 2px 6px rgba(0,0,0,0.3);
      display: none;
      padding: 8px 0;
      z-index: 1000;
      list-style: none;
      margin: 0;
    }

    nav ul li:hover > ul.submenu {
      display: block;
    }

    nav ul li ul.submenu li a {
      color: #000;
      display: block;
      padding: 8px 20px;
      text-decoration: none;
    }

    nav ul li ul.submenu li a:hover {
      background-color: #000 !important;
      color: #00aaff !important;
    }

    /* Slider styles */
    #mainSlider {
      max-height: 570px;
      overflow: hidden;
      position: relative;
    }

    #mainSlider img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }

    /* Main Image */
    #mainImage {
      max-height: 600px;
      overflow: hidden;
      position: relative;
    }

    #mainImage img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }

    /* Section styles */
    .intro-text {
      font-family: 'Changa One', sans-serif;
      font-size: 24px;
      text-decoration: underline;
      text-decoration-color: red;
      margin-bottom: 8px;
      text-align: left;
    }

    .intro-subtext {
      font-family: 'Changa One', sans-serif;
      font-weight: 600;
      font-size: 16px;
      text-align: left;
      margin-bottom: 12px;
    }

     .contact-subtext {
      font-family: 'Changa One', sans-serif;
      font-weight: 600;
      font-size: 16px;
      text-align: left;
      margin-bottom: 2px;
    }

    .contact-subtext-gray {
      font-family: 'Changa One', sans-serif;
      font-weight: 600;
      font-size: 16px;
      text-align: left;
      margin-bottom: 2px;
      color:gray;
    }

    .content-text {
      font-family: 'Rowdies', sans-serif;
      font-size: 17px;
      color: #000;
      margin-top: 10px;
      text-align: justify;
    }

    /* Features grid */
    .features .feature-item {
      display: flex;
      align-items: flex-start;
      gap: 15px;
      margin-bottom: 20px;
    }

    .features .feature-item img {
      width: 50px;
      height: auto;
      margin-top: 5px;
      flex-shrink: 0;
    }

    .features .feature-item strong {
      display: block;
      font-family: 'Rowdies', sans-serif;
      font-size: 17px;
      color: #000;
      margin-bottom: 5px;
    }

    .features .feature-item span {
      font-family: 'Rowdies', sans-serif;
      font-size: 17px;
      color: #000;
      line-height: 1.4;
    }

    /* Footer */
    footer {
      background-color: #130808;
      color: #fff;
      padding: 20px 0;
      text-align: center;
      font-family: 'Roboto', sans-serif;
    }

    /* Page heading and intro */
    .page-heading {
      font-family: 'Changa One', sans-serif;
      font-weight: 700;
      font-size: 28px;
      color: #ddae68;
      margin-top: 20px;
      margin-bottom: 10px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .page-subheading {
      font-family: 'Rowdies', sans-serif;
      font-size: 14px;
      color: #777;
      margin-bottom: 20px;
      line-height: 1.4;
    }

    .intro-text-container {
      max-width: 900px;
      margin-bottom: 10px;
      font-family: 'Rowdies', sans-serif;
      font-size: 16.5px;
      color: #000;
      line-height: 1.5;
    }

    /* Technology sections container */
    .technology-container {
      max-width: 1200px;
      margin: 0 auto 50px auto;
      padding: 0 15px;
      font-family: 'Rowdies', sans-serif;
    }

    .technology-intro {
      margin-bottom: 12px;
      font-size: 15px;
      color: #444;
      line-height: 1.6;
      text-align: justify;
      margin-left: 10px;
    }

    /* Technology feature box */
    .tech-feature-row {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 15px;
      margin-bottom: 10px;
    }

    .tech-feature {
      border: 1px solid #c00;
      padding: 15px;
      flex: 1 1 48%;
      min-width: 300px;
      display: flex;
      gap: 15px;
      align-items: center;
    }

    .tech-feature img {
      max-width: 300px;
      height: auto;
      flex-shrink: 0;
      object-fit: contain;
      border-radius: 4px;
    }

    .tech-feature-content {
      flex-grow: 1;
      font-size: 14.5px;
      color: #222;
    }

    .tech-feature-title {
      font-weight: 700;
      margin-bottom: 8px;
      color: #ff0000;
      font-family: Rowdies, sans-serif;
      font-size: 17px;
    }

    /* Lenses feature box */
    .lenses-feature-row {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 15px;
      margin-bottom: 10px;
    }

    .lenses-feature {
      border: 1px solid #c00;
      padding: 15px;
      flex: 1 1 48%;
      min-width: 300px;
      display: flex;
      gap: 15px;
      align-items: center;
    }

    .lenses-feature img {
      max-width: 100%;
      height: auto;
      flex-shrink: 0;
      object-fit: contain;
      border-radius: 4px;
    }

    .lenses-feature-content {
      flex-grow: 1;
      font-size: 14.5px;
      color: #222;
    }

    .lenses-feature-title {
      font-weight: 700;
      margin-bottom: 8px;
      color: #ff0000;
      font-family: Rowdies, sans-serif;
      font-size: 17px;
    }

    /* contact feature box */
    .contact-feature-row {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 15px;
      margin-bottom: 10px;
    }

    .contact-feature-title {
      font-weight: 700;
      margin-bottom: 8px;
      color: #00aaff;
      font-family: Rowdies, sans-serif;
      font-size: 17px;
    }

    .contact-feature {
      border: 1px solid #00aaff;
      padding: 15px;
      flex: 1 1 48%;
      min-width: 300px;
      display: flex;
      gap: 15px;
      align-items: center;
    }

    .contact-feature-content {
      flex-grow: 1;
      font-size: 14.5px;
      color: #222;
    }

    .lenses-feature img {
      max-width: 100%;
      height: auto;
      flex-shrink: 0;
      object-fit: contain;
      border-radius: 4px;
    }

    /* Hamburger Menu Styles */
    .hamburger {
      display: none;
      flex-direction: column;
      cursor: pointer;
      padding: 8px;
      background: none;
      border: none;
      border-radius: 4px;
      transition: all 0.3s ease;
    }

    .hamburger:hover {
      background-color: rgba(221, 174, 104, 0.1);
    }

    .hamburger span {
      width: 28px;
      height: 3px;
      background-color: #ddae68;
      margin: 3px 0;
      transition: all 0.3s ease;
      border-radius: 2px;
    }

    .hamburger:hover span {
      background-color: #04bcf0;
    }

    .hamburger.active span:nth-child(1) {
      transform: rotate(45deg) translate(6px, 6px);
      background-color: #04bcf0;
    }

    .hamburger.active span:nth-child(2) {
      opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
      transform: rotate(-45deg) translate(6px, -6px);
      background-color: #04bcf0;
    }

    .mobile-nav {
      display: none;
      position: fixed;
      top: 120px;
      left: 0;
      width: 100%;
      height: calc(100vh - 120px);
      background-color: #010006;
      z-index: 999;
      overflow-y: auto;
      padding: 20px 0;
      opacity: 0;
      transform: translateY(-10px);
      transition: all 0.3s ease;
    }

    .mobile-nav.active {
      display: block;
      opacity: 1;
      transform: translateY(0);
    }

    .mobile-nav ul {
      flex-direction: column;
      gap: 0;
      padding: 0 20px;
      list-style: none;
      margin: 0;
    }

    .mobile-nav ul li {
      width: 100%;
      border-bottom: 1px solid #333;
      opacity: 0;
      transform: translateX(-20px);
      animation: slideInLeft 0.3s ease forwards;
    }

    .mobile-nav.active ul li:nth-child(1) { animation-delay: 0.1s; }
    .mobile-nav.active ul li:nth-child(2) { animation-delay: 0.15s; }
    .mobile-nav.active ul li:nth-child(3) { animation-delay: 0.2s; }
    .mobile-nav.active ul li:nth-child(4) { animation-delay: 0.25s; }
    .mobile-nav.active ul li:nth-child(5) { animation-delay: 0.3s; }
    .mobile-nav.active ul li:nth-child(6) { animation-delay: 0.35s; }
    .mobile-nav.active ul li:nth-child(7) { animation-delay: 0.4s; }

    @keyframes slideInLeft {
      to {
        opacity: 1;
        transform: translateX(0);
      }
    }

    .mobile-nav ul li a {
      display: block;
      padding: 15px 0;
      font-size: 16px;
      width: 100%;
      border-bottom: none;
      color: #ddae68;
      font-weight: 500;
      text-decoration: none;
      font-family: 'Roboto Condensed', sans-serif;
      transition: all 0.3s ease;
      position: relative;
    }

    .mobile-nav ul li a.active,
    .mobile-nav ul li a:hover {
      color: #04bcf0;
      padding-left: 10px;
    }

    .mobile-nav ul li a::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 0;
      height: 2px;
      background-color: #04bcf0;
      transition: width 0.3s ease;
    }

    .mobile-nav ul li a:hover::before,
    .mobile-nav ul li a.active::before {
      width: 5px;
    }

    .mobile-nav .has-submenu > a {
      position: relative;
    }

    .mobile-nav .has-submenu > a::after {
      content: '+';
      position: absolute;
      right: 0;
      top: 50%;
      transform: translateY(-50%);
      font-size: 20px;
      transition: all 0.3s ease;
      color: #ddae68;
      font-weight: bold;
    }

    .mobile-nav .has-submenu > a:hover::after {
      color: #04bcf0;
    }

    .mobile-nav .has-submenu.open > a::after {
      transform: translateY(-50%) rotate(45deg);
      color: #04bcf0;
    }

    .mobile-nav .submenu {
      position: static !important;
      display: none !important;
      background-color: rgba(26, 26, 26, 0.95);
      box-shadow: inset 0 2px 4px rgba(0,0,0,0.3);
      padding: 0;
      margin: 0;
      width: 100%;
      min-width: auto;
      overflow: hidden;
      max-height: 0;
      transition: all 0.3s ease;
    }

    .mobile-nav .submenu.show {
      display: block !important;
      max-height: 300px;
    }

    .mobile-nav .submenu li {
      border-bottom: 1px solid #444;
      animation: none;
      opacity: 1;
      transform: none;
    }

    .mobile-nav .submenu li a {
      padding: 12px 0 12px 20px;
      font-size: 14px;
      color: #ccc;
      position: relative;
      transition: all 0.3s ease;
    }

    .mobile-nav .submenu li a:hover {
      background-color: rgba(0, 0, 0, 0.3);
      color: #04bcf0 !important;
      padding-left: 30px;
    }

    .mobile-nav .submenu li a::before {
      left: 20px;
      width: 0;
    }

    .mobile-nav .submenu li a:hover::before {
      width: 5px;
    }

    /* Mobile styles */
    @media (max-width: 768px) {
      body {
        padding-top: 80px;
      }

      .logo img {
        height: 60px;
        width: 200px;
      }

      .hamburger {
        display: flex;
      }

      nav {
        display: none;
      }

      header .container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
      }

      .intro-text {
        font-size: 20px;
        text-align: center;
      }

      .intro-subtext {
        font-size: 14px;
        text-align: center;
      }

      .technology-intro {
        font-size: 14px;
        margin-left: 0;
        text-align: left;
      }

      .tech-feature-row {
        flex-direction: column;
      }

      .tech-feature {
        flex-basis: 100%;
        min-width: auto;
        flex-direction: column;
        text-align: center;
      }

      .lenses-feature-row {
        flex-direction: column;
      }

      .lenses-feature {
        flex-basis: 100%;
        min-width: auto;
        flex-direction: column;
        text-align: center;
      }

      .features .feature-item {
        flex-direction: column;
        text-align: center;
        align-items: center;
      }

      .features .feature-item strong {
        font-size: 15px;
      }

      .features .feature-item span {
        font-size: 14px;
      }

      #mainSlider {
        max-height: 300px;
      }

      .page-heading {
        font-size: 24px;
        text-align: center;
      }
    }

    /* Tablet styles */
    @media (min-width: 769px) and (max-width: 1024px) {
      body {
        padding-top: 160px;
      }

      .logo img {
        height: 100px;
        width: 350px;
      }

      nav ul {
        gap: 20px;
        font-size: 13px;
      }

      .intro-text {
        font-size: 22px;
      }

      .intro-subtext {
        font-size: 15px;
      }

      .technology-intro {
        font-size: 14px;
      }

      .tech-feature {
        min-width: 280px;
      }

      .features .feature-item {
        margin-bottom: 15px;
      }

      .features .feature-item strong {
        font-size: 16px;
      }

      .features .feature-item span {
        font-size: 15px;
      }
    }

    /* Large screen styles */
    @media (min-width: 1200px) {
      .container {
        max-width: 1140px;
      }

      .technology-container {
        max-width: 1400px;
      }
    }

    /* Footer responsive */
    @media (max-width: 768px) {
      footer .row > div {
        text-align: center !important;
        margin-bottom: 10px;
      }
    }

    /* Image responsiveness */
    .img-fluid {
      max-width: 100%;
      height: auto;
    }

    /* Carousel improvements for mobile */
    @media (max-width: 576px) {
      .carousel-control-prev,
      .carousel-control-next {
        width: 8%;
      }

      .carousel-control-prev-icon,
      .carousel-control-next-icon {
        width: 15px;
        height: 15px;
      }
    }