:root {
        --accent: #2563eb;
        --accent2: #1d4ed8;
        --bg1: #facc15;
      }

      * {
        box-sizing: border-box;
      }

      body {
        font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
        margin: 0;
        padding-top: 100px;
        min-height: 100vh;
        background: linear-gradient(135deg, #e0f2fe, #f9fafb);
      }

      /* Header Styles */
      header {
        transition: all 0.3s ease;
        z-index: 1050;
      }
      header.scrolled {
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(8px);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
      }
      header.default {
        background: rgba(255, 255, 255, 0.9);
        backdrop-filter: blur(4px);
      }

      /* Brand Logo */
      .brand-logo img {
        max-height: 70px;
        width: auto;
        display: block;
      }

      /* Nav links */
      .nav-link {
        font-weight: 500;
        color: #374151;
        position: relative;
        transition: color 0.3s;
        text-decoration: none;
      }
      .nav-link:hover {
        color: #1e3a8a;
      }
      .nav-link::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: -4px;
        width: 0;
        height: 2px;
        background: linear-gradient(to right, #facc15, #ca8a04);
        transition: width 0.3s;
      }
      .nav-link:hover::after {
        width: 100%;
      }

      /* Remove default Bootstrap caret */
      .dropdown-toggle::after {
        display: none !important;
      }

      /* Rotate chevron when dropdown is open */
      .dropdown-toggle .fa-chevron-down {
        transition: transform 0.3s ease;
      }
      .dropdown.show .fa-chevron-down {
        transform: rotate(180deg);
      }

      /* Mobile dropdown fix */
      #mobileNav .collapse .dropdown-item {
        padding: 0.5rem 0;
        color: #374151;
      }
      #mobileNav .collapse .dropdown-item:hover {
        color: #1e3a8a;
      }

      /* Gradient button */
      .btn-gradient {
        background: linear-gradient(to right, #facc15, #ca8a04);
        color: #fff;
        font-weight: 600;
        border-radius: 50px;
        padding: 0.6rem 1.5rem;
        transition: all 0.3s ease;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
        border: none;
      }
      .btn-gradient:hover {
        background: linear-gradient(to right, #eab308, #a16207);
        transform: translateY(-2px);
        box-shadow: 0 6px 14px rgba(0, 0, 0, 0.2);
        color: #fff;
      }

      /* Mobile menu button */
      .mobile-menu-btn {
        font-size: 1.5rem;
        color: #000 !important;
        background: none;
        border: none;
        outline: none;
      }
      .mobile-menu-btn:hover {
        color: #000 !important;
      }

      /* Mobile nav */
      #mobileNav a {
        color: #374151;
        font-weight: 500;
        transition: color 0.3s;
      }
      #mobileNav a:hover {
        color: #1e3a8a;
      }
      #mobileNav .btn-gradient {
        margin-top: 1rem;
      }

      /* Calculator Styles */
      .calculator-container {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: calc(100vh - 100px);
        padding: 16px;
      }

      .card {
        width: 100%;
        max-width: 600px;
        border-radius: 18px;
        background: #fff;
        padding: 20px;
        box-shadow: 0 10px 35px rgba(0, 0, 0, 0.1);
      }

      h1 {
        font-size: 22px;
        margin: 0 0 18px;
        text-align: center;
        font-weight: 700;
        color: var(--accent);
      }

      /* Tabs */
      .tabs {
        display: flex;
        gap: 10px;
        margin-bottom: 18px;
      }
      .tab {
        flex: 1;
        text-align: center;
        padding: 12px;
        border-radius: 12px;
        background: #f1f5f9;
        color: #334155;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s ease;
      }
      .tab:hover {
        background: #e2e8f0;
      }
      .tab.active {
        background: linear-gradient(135deg, var(--bg1), var(--accent));
        color: #fff;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
      }

      /* Sections */
      .section {
        display: none;
      }
      .section.active {
        display: block;
      }

      /* Form rows */
      .row {
        display: flex;
        gap: 12px;
        align-items: center;
        margin-bottom: 14px;
        flex-wrap: wrap;
      }
      label {
        flex: 1 1 160px;
        font-weight: 600;
        color: #334155;
      }

      /* Inputs */
      .input {
        flex: 1 1 0px;
        display: flex;
        align-items: center;
        background: #f9fafb;
        border-radius: 12px;
        padding: 10px 12px;
        border: 2px solid #e2e8f0;
        transition: border 0.3s ease, box-shadow 0.3s ease;
      }
      .input:focus-within {
        border-color: var(--accent);
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
      }
      .input input {
        border: 0;
        background: transparent;
        outline: none;
        font-size: 15px;
        font-weight: 600;
        width: 100%;
        color: var(--accent2);
      }
      .unit {
        font-weight: 700;
        color: #475569;
        margin-left: 8px;
        white-space: nowrap;
      }

      /* Progress Bar Styles */
      .progress-wrapper {
        flex: 2 1 220px;
        position: relative;
        margin-top: 8px;
      }
      
      .progress-info {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 6px;
        cursor: pointer;
        padding: 4px 8px;
        border-radius: 8px;
        transition: background 0.2s ease;
      }
      
      .progress-info:hover {
        background: rgba(0, 0, 0, 0.05);
      }
      
      .progress-value {
        font-size: 12px;
        font-weight: 700;
        color: var(--accent2);
        background: white;
        padding: 2px 8px;
        border-radius: 12px;
        box-shadow: 0 2px 6px rgba(0,0,0,0.1);
        border: 1px solid #e2e8f0;
      }
      
      .progress-range {
        font-size: 11px;
        color: #64748b;
        font-weight: 500;
      }
      
      .progress-bar-custom {
        width: 100%;
        height: 6px;
        background: #e2e8f0;
        border-radius: 6px;
        overflow: hidden;
        position: relative;
        box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
      }
      
      .progress-fill {
        height: 100%;
        background: linear-gradient(90deg, var(--bg1) 0%, #f59e0b 50%, var(--accent) 100%);
        border-radius: 6px;
        transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        position: relative;
        box-shadow: 0 1px 3px rgba(0,0,0,0.2);
      }
      
      .progress-fill::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.3) 50%, transparent 100%);
        border-radius: 6px;
      }
      
      .progress-fill.animate {
        animation: progressShine 2s ease-in-out;
      }
      
      @keyframes progressShine {
        0% { transform: scaleX(0); transform-origin: left; }
        50% { transform: scaleX(1); transform-origin: left; }
        51% { transform: scaleX(1); transform-origin: right; }
        100% { transform: scaleX(1); transform-origin: right; }
      }

      /* Style for range inputs to match progress bars */
      input[type="range"].progress-bar-custom {
        -webkit-appearance: none;
        width: 100%;
        height: 6px;
        background: #e2e8f0;
        border-radius: 6px;
        outline: none;
        margin-bottom: 8px;
        box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
      }

      input[type="range"].progress-bar-custom::-webkit-slider-thumb {
        -webkit-appearance: none;
        width: 16px;
        height: 16px;
        background: linear-gradient(90deg, var(--bg1), var(--accent));
        border-radius: 50%;
        cursor: pointer;
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
        transition: transform 0.2s ease;
      }

      input[type="range"].progress-bar-custom::-webkit-slider-thumb:hover {
        transform: scale(1.2);
      }

      input[type="range"].progress-bar-custom::-moz-range-thumb {
        width: 16px;
        height: 16px;
        background: linear-gradient(90deg, var(--bg1), var(--accent));
        border-radius: 50%;
        cursor: pointer;
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
        transition: transform 0.2s ease;
      }

      input[type="range"].progress-bar-custom::-moz-range-thumb:hover {
        transform: scale(1.2);
      }

      /* Button */
      .calc-button {
        width: 100%;
        padding: 14px 16px;
        border-radius: 12px;
        border: none;
        background: linear-gradient(135deg, var(--bg1), var(--accent));
        color: #fff;
        font-weight: 700;
        font-size: 16px;
        cursor: pointer;
        margin-top: 10px;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
      }
      .calc-button:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
      }

      /* Results */
      .result {
        margin-top: 18px;
        background: #f0f9ff;
        border-radius: 14px;
        padding: 16px;
        border: 1px solid #bae6fd;
        display: none;
      }
      .result .rowR {
        display: flex;
        justify-content: space-between;
        padding: 10px 0;
        border-bottom: 1px solid rgba(0, 0, 0, 0.06);
      }
      .result .rowR:last-child {
        border-bottom: 0;
      }
      .labelR {
        color: #334155;
        font-weight: 600;
        font-size: 14px;
      }
      .valueR {
        font-weight: 700;
        color: var(--accent2);
        font-size: 15px;
      }

      /* Responsive improvements */
      @media (max-width: 575.98px) {
        header .container {
          padding: 8px 15px;
        }

        .brand-logo img {
          max-height: 50px;
        }

        .fs-5 {
          font-size: 1rem !important;
        }

        .mobile-menu-btn {
          font-size: 1.2rem;
        }

        body {
          padding-top: 80px;
        }

        .row {
          flex-direction: column;
          align-items: stretch;
        }
        label {
          flex: unset;
          width: 100%;
          margin-bottom: 6px;
        }
        .input, .progress-wrapper {
          flex: unset;
          width: 100%;
        }
      }

      @media (min-width: 576px) and (max-width: 767.98px) {
        body {
          padding-top: 90px;
        }
      }

      /* WhatsApp Float */
      .whatsapp-float {
        position: fixed;
        bottom: 20px;
        right: 20px;
        background: #25d366;
        color: #fff;
        border-radius: 50%;
        width: 60px;
        height: 60px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 30px;
        box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
        z-index: 1000;
        cursor: pointer;
        transition: 0.3s;
      }

      .whatsapp-float:hover {
        background: #20b954;
        transform: scale(1.1);
      }
   /* Base Footer Styles (Desktop) - Keep existing styles intact */
      .footer {
        background: #111827;
        color: #fff;
        margin-top: auto;
      }

      .footer-logo {
        max-width: 60px;
        flex-shrink: 0;
      }

      .footer-logo img {
        width: 100%;
        height: auto;
        display: block;
        object-fit: contain;
      }

      .social-btn {
        width: 40px;
        height: 40px;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        transition: all 0.3s ease;
        text-decoration: none;
      }
      .social-btn.linkedin {
        background: linear-gradient(to right, #0a66c2, #004182);
      }
      .social-btn.twitter {
        background: linear-gradient(to right, #1da1f2, #0d8ddb);
      }
      .social-btn.youtube {
        background: linear-gradient(to right, #ff0000, #cc0000);
      }
      .social-btn:hover {
        transform: translateY(-3px);
        opacity: 0.9;
        color: #fff;
      }

      .footer-link {
        color: #d1d5db;
        text-decoration: none;
        transition: color 0.3s;
        line-height: 1.8;
      }
      .footer-link:hover {
        color: #facc15;
        text-decoration: underline;
      }

      .dot {
        width: 6px;
        height: 6px;
        background: linear-gradient(to right, #facc15, #2563eb);
        border-radius: 50%;
        margin-right: 10px;
        flex-shrink: 0;
        display: inline-block;
      }

      .icon-box {
        width: 40px;
        height: 40px;
        background: linear-gradient(to right, #facc15, #ca8a04);
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #111827;
        flex-shrink: 0;
      }

      /* Text colors */
      .text-light {
        color: #d1d5db !important;
      }

      .text-white {
        color: #ffffff !important;
      }

      .text-warning {
        color: #facc15 !important;
      }

      /* Mobile Responsive Footer Styles */

      /* Extra Small devices (< 576px) */
      @media (max-width: 575.98px) {
        .footer {
          padding: 2rem 0 1rem;
        }

        .footer .container {
          padding-left: 15px;
          padding-right: 15px;
        }

        /* Override center alignment for mobile */
        .footer .row {
          text-align: left !important;
        }

        .footer .col-lg-3,
        .footer .col-md-6 {
          text-align: left !important;
          margin-bottom: 2rem;
          padding-left: 15px;
          padding-right: 15px;
        }

        /* Company Info Section */
        .footer .col-lg-3:first-child .d-flex.align-items-center.mb-3 {
          justify-content: flex-start;
          align-items: center;
          flex-wrap: wrap;
          gap: 10px;
        }

        .footer-logo {
          max-width: 45px;
        }

        .footer .col-lg-3:first-child h3 {
          font-size: 1rem;
          margin-bottom: 0;
          line-height: 1.2;
        }

        .footer .text-light.small {
          text-align: left;
          margin-bottom: 1rem;
          line-height: 1.4;
        }

        /* Social Media Section */
        .footer h5.fw-semibold.mt-4 {
          text-align: left;
          font-size: 1rem;
          margin-top: 1.5rem !important;
          margin-bottom: 0.75rem;
        }

        .footer .d-flex.gap-3.mt-2 {
          justify-content: flex-start;
          flex-wrap: wrap;
          gap: 0.75rem !important;
          margin-top: 0.75rem !important;
        }

        .social-btn {
          width: 36px;
          height: 36px;
          border-radius: 6px;
          font-size: 0.9rem;
        }

        /* Quick Links Section */
        .footer .col-lg-3:nth-child(2) h5 {
          font-size: 1rem;
          margin-bottom: 0.75rem;
          text-align: left;
        }

        .footer .list-unstyled {
          text-align: left;
          margin-bottom: 0;
        }

        .footer .list-unstyled li {
          margin-bottom: 0.5rem;
        }

        .footer-link {
          font-size: 0.9rem;
          line-height: 1.3;
        }

        /* Services Section */
        .footer .col-lg-3:nth-child(3) h5 {
          font-size: 1rem;
          margin-bottom: 0.75rem;
          text-align: left;
        }

        .footer .col-lg-3:nth-child(3) .list-unstyled li {
          margin-bottom: 0.5rem;
        }

        .footer .d-flex.align-items-center.mb-2 {
          align-items: flex-start;
          margin-bottom: 0.5rem !important;
        }

        .footer .dot {
          margin-top: 0.25rem;
          margin-right: 8px;
          flex-shrink: 0;
        }

        /* Contact Information Section */
        .footer .col-lg-3:last-child h5 {
          font-size: 1rem;
          margin-bottom: 0.75rem;
          text-align: left;
        }

        .footer .d-flex.mb-3 {
          justify-content: flex-start;
          align-items: flex-start;
          margin-bottom: 1rem !important;
          gap: 12px;
        }

        .icon-box {
          width: 36px;
          height: 36px;
          border-radius: 6px;
          flex-shrink: 0;
          margin-top: 2px;
        }

        .icon-box i {
          font-size: 0.9rem;
        }

        .footer .d-flex.mb-3 .ms-3 {
          margin-left: 0 !important;
          flex: 1;
        }

        .footer .fw-semibold {
          font-size: 0.9rem;
          margin-bottom: 0.25rem;
        }

        .footer .text-light.small {
          font-size: 0.85rem;
          line-height: 1.3;
        }

        /* Security Badges Section */
        .footer .border-top.border-secondary.pt-4.mt-5 {
          margin-top: 2rem !important;
          padding-top: 1.5rem !important;
        }

        .footer .d-flex.flex-wrap.gap-4 {
          justify-content: flex-start;
          flex-wrap: wrap;
          gap: 1rem !important;
        }

        .footer .d-flex.align-items-center.gap-2.text-light.small {
          margin-bottom: 0.5rem;
          font-size: 0.8rem;
          align-items: center;
        }

        .footer .fas.fa-shield-alt,
        .footer .fas.fa-lock {
          font-size: 0.8rem;
        }

        /* Compliance Disclaimer Section */
        .footer .border-top.border-secondary.pt-4.mt-4 {
          margin-top: 1.5rem !important;
          padding-top: 1.5rem !important;
        }

        .footer .bg-secondary.bg-opacity-25.rounded.p-4 {
          padding: 1.5rem !important;
          border-radius: 8px !important;
        }

        .footer h6.fw-semibold.text-warning.mb-3 {
          font-size: 0.9rem;
          margin-bottom: 0.75rem !important;
        }

        .footer .bg-secondary p.small.text-light {
          font-size: 0.75rem !important;
          line-height: 1.4;
          margin-bottom: 0;
        }

        /* Copyright Section - Centered */
        .footer .border-top.pt-4.mt-4.text-center {
          text-align: center !important;
          margin-top: 1.5rem !important;
          padding-top: 1.5rem !important;
        }

        .footer .text-center p {
          text-align: center !important;
          margin-bottom: 0.5rem;
          font-size: 0.85rem;
        }

        .footer .text-center p.small {
          font-size: 0.75rem !important;
          margin-bottom: 0;
        }

        .footer .text-center a {
          color: #facc15;
          text-decoration: none;
        }

        .footer .text-center a:hover {
          text-decoration: underline;
        }
      }

      /* Small devices (576px - 767px) */
      @media (min-width: 576px) and (max-width: 767.98px) {
        .footer {
          padding: 3rem 0 2rem;
        }

        /* Keep left alignment but with better spacing */
        .footer .row {
          text-align: left !important;
        }

        .footer .col-lg-3,
        .footer .col-md-6 {
          text-align: left !important;
          margin-bottom: 2rem;
        }

        .footer-logo {
          max-width: 50px;
        }

        .footer h5 {
          font-size: 1.1rem;
        }

        .social-btn {
          width: 38px;
          height: 38px;
        }

        .icon-box {
          width: 38px;
          height: 38px;
        }

        /* Copyright stays centered */
        .footer .text-center {
          text-align: center !important;
        }

        .footer .text-center p {
          text-align: center !important;
        }
      }

      /* Medium devices (768px - 991px) */
      @media (min-width: 768px) and (max-width: 991.98px) {
        .footer .col-md-6 {
          margin-bottom: 2rem;
        }

        /* On tablets, we can start using some centering for better balance */
        .footer .row {
          text-align: left;
        }
      }

      /* Ensure no horizontal overflow in footer */
      .footer * {
        word-wrap: break-word;
        overflow-wrap: break-word;
      }

      .footer .container-fluid {
        padding-left: 15px;
        padding-right: 15px;
      }

      /* Fix for very long text in footer */
      .footer .text-light.small,
      .footer .footer-link {
        word-break: break-word;
        hyphens: auto;
      }

      /* Ensure footer links are touchable on mobile */
      @media (max-width: 767.98px) {
        .footer-link,
        .social-btn {
          min-height: 44px;
          display: flex;
          align-items: center;
          padding: 0.5rem 0;
        }

        .social-btn {
          min-height: 36px;
          justify-content: center;
        }
      }

      /* Dark mode compatibility */
      @media (prefers-color-scheme: dark) {
        .footer {
          background: #0f172a;
        }
      }