:root {
    --smart-blue-900: #0f2942;
    --smart-blue-800: #17324f;
    --smart-blue-700: #1f3d5c;
    --smart-blue-600: #35567a;
    --smart-blue-500: #4c6f97;
    --smart-blue-300: #8faac9;
    --smart-blue-100: #d1dce9;
    --smart-blue-50: #eef3f7;
    --smart-accent: #22d4bf;
    --smart-accent-dark: #1db3a1;
    --smart-accent-light: #7de7db;
    --white: #ffffff;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--smart-blue-900);
    background-color: var(--white);
  }
  
  h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    line-height: 1.2;
  }
  
  a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
  }
  
  img {
    max-width: 100%;
  }
  
  button {
    cursor: pointer;
    font-family: inherit;
  }
  
  ul {
    list-style: none;
  }
  
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
  }
  
  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
  }
  
  .accent {
    color: var(--smart-accent);
  }
  
  /* Header & Navigation */
  .header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1rem 0;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
  }
  
  .header.scrolled {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  }
  
  .header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .logo {
    display: flex;
    align-items: center;
  }
  
  .logo-text {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--smart-blue-900);
  }
  
  .nav-desktop {
    display: none;
  }
  
  @media (min-width: 768px) {
    .nav-desktop {
      display: block;
    }
  
    .nav-desktop ul {
      display: flex;
      gap: 2rem;
    }
  
    .nav-desktop a {
      color: var(--smart-blue-800);
      font-weight: 500;
    }
  
    .nav-desktop a:hover {
      color: var(--smart-accent);
    }
  }
  
  .nav-toggle {
    display: flex;
    flex-direction: column;
    width: 30px;
    cursor: pointer;
  }
  
  .nav-toggle span {
    background-color: var(--smart-blue-900);
    height: 3px;
    margin: 2px 0;
    border-radius: 2px;
    transition: transform 0.3s ease;
  }
  
  .nav-toggle.active span:first-child {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active span:last-child {
    transform: rotate(-45deg) translate(5px, -5px);
  }
  
  @media (min-width: 768px) {
    .nav-toggle {
      display: none;
    }
  }
  
  .mobile-nav {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--white);
    padding: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 99;
  }
  
  .mobile-nav.active {
    display: block;
  }
  
  .mobile-nav ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  .mobile-nav a {
    display: block;
    padding: 0.5rem;
    color: var(--smart-blue-800);
    font-weight: 500;
  }
  
  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.2s ease;
    border: none;
    outline: none;
    font-size: 0.875rem;
  }
  
  .btn:hover {
    transform: translateY(-2px);
  }
  
  .btn-primary {
    background-color: var(--smart-blue-900);
    color: var(--white);
  }
  
  .btn-primary:hover {
    background-color: var(--smart-blue-800);
  }
  
  .btn-accent {
    background-color: var(--smart-accent);
    color: var(--white);
  }
  
  .btn-accent:hover {
    background-color: var(--smart-accent-dark);
  }
  
  .btn-outline {
    border: 1px solid var(--smart-blue-300);
    color: var(--smart-blue-900);
    background-color: transparent;
  }
  
  .btn-outline:hover {
    background-color: var(--smart-blue-50);
  }
  
  .btn-outline-white {
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    background-color: transparent;
  }
  
  .btn-outline-white:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
  
  .btn svg {
    margin-left: 0.5rem;
    transition: transform 0.2s ease;
  }
  
  .btn:hover svg {
    transform: translate(2px, -2px);
  }
  
  .btn-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
  }
  
  @media (min-width: 640px) {
    .btn-group {
      flex-direction: row;
    }
  }
  
  /* Hero Section */
  .hero {
    padding-top: 8rem;
    padding-bottom: 5rem;
    background: linear-gradient(to bottom, var(--smart-blue-50), var(--white));
    position: relative;
    overflow: hidden;
  }
  
  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at top right, rgba(34, 212, 191, 0.1), transparent 70%);
    z-index: 0;
  }
  
  .hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    position: relative;
    z-index: 1;
  }
  
  @media (min-width: 1024px) {
    .hero-grid {
      grid-template-columns: 1fr 1fr;
      align-items: center;
    }
  }
  
  .hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
  }
  
  @media (min-width: 768px) {
    .hero h1 {
      font-size: 3.5rem;
    }
  }
  
  .hero p {
    font-size: 1.125rem;
    color: var(--smart-blue-600);
    margin-bottom: 2rem;
    max-width: 32rem;
  }
  
  .trust-badges {
    display: flex;
    align-items: center;
    margin-top: 2rem;
  }
  
  .avatar-group {
    display: flex;
  }
  
  .avatar {
    width: 2rem;
    height: 2rem;
    background: linear-gradient(to bottom right, var(--smart-blue-500), var(--smart-blue-700));
    border-radius: 50%;
    border: 2px solid var(--white);
    margin-left: -0.5rem;
  }
  
  .avatar:first-child {
    margin-left: 0;
  }
  
  .trust-badges p {
    margin-bottom: 0;
    margin-left: 1rem;
    font-size: 0.875rem;
  }
  
  .hero-image {
    position: relative;
  }
  
  .hero-image-wrapper {
    position: relative;
    aspect-ratio: 16 / 9;
    background: linear-gradient(to bottom right, var(--smart-blue-800), var(--smart-blue-900));
    border-radius: 0.75rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
  }
  
  .hero-dashboard {
    width: 100%;
    height: 100%;
    position: relative;
  }
  
  .hero-dashboard::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNjAiIGhlaWdodD0iNjAiIHZpZXdCb3g9IjAgMCA2MCA2MCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48ZyBmaWxsPSJub25lIiBmaWxsLXJ1bGU9ImV2ZW5vZGQiPjxnIGZpbGw9IiMyMkQ0QkYiIGZpbGwtb3BhY2l0eT0iMC40Ij48cGF0aCBkPSJNMzYgMzRjMCAxLjEtLjkgMi0yIDItMS4xIDAtMi0uOS0yLTJzLjktMiAyLTJjMS4xIDAgMiAuOSAyIDJ6TTMwIDI0YzAgMS4xLS45IDItMiAyLTEuMSAwLTItLjktMi0ycy45LTIgMi0yYzEuMSAwIDIgLjkgMiAyeiI+PC9wYXRoPjwvZz48L2c+PC9zdmc+');
  }
  
  .hero-dashboard-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    height: 100%;
    color: var(--white);
  }
  
  .pulse-dot {
    width: 3rem;
    height: 3rem;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
  }
  
  .pulse-inner {
    width: 0.75rem;
    height: 0.75rem;
    background-color: var(--smart-accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
  }
  
  @keyframes pulse {
    0% {
      transform: scale(0.95);
      box-shadow: 0 0 0 0 rgba(34, 212, 191, 0.7);
    }
    
    70% {
      transform: scale(1);
      box-shadow: 0 0 0 10px rgba(34, 212, 191, 0);
    }
    
    100% {
      transform: scale(0.95);
      box-shadow: 0 0 0 0 rgba(34, 212, 191, 0);
    }
  }
  
  .dashboard-text h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
  }
  
  .dashboard-text p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0;
  }
  
  .hero-accent-block {
    position: absolute;
    bottom: -1rem;
    right: -1rem;
    width: 6rem;
    height: 6rem;
    background-color: var(--smart-accent);
    border-radius: 0.5rem;
    z-index: -1;
  }
  
  @media (min-width: 768px) {
    .hero-accent-block {
      bottom: -2rem;
      right: -2rem;
      width: 8rem;
      height: 8rem;
    }
  }
  
  .animate-fade-in {
    animation: fadeIn 1s ease-out;
  }
  
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .gradient-text {
    background: linear-gradient(to right, var(--smart-blue-900), var(--smart-accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  
  /* Benefits Section */
  .benefits {
    padding: 5rem 0;
    background-color: var(--smart-blue-50);
  }
  
  .section-header {
    text-align: center;
    max-width: 48rem;
    margin: 0 auto 4rem;
  }
  
  .section-header h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
  }
  
  @media (min-width: 768px) {
    .section-header h2 {
      font-size: 2.5rem;
    }
  }
  
  .section-header p {
    color: var(--smart-blue-600);
  }
  
  .benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  @media (min-width: 640px) {
    .benefits-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (min-width: 1024px) {
    .benefits-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }
  
  .benefit-card {
    background-color: var(--white);
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    border-radius: 0.75rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  
  .benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  }
  
  .benefit-icon {
    width: 3rem;
    height: 3rem;
    background-color: rgba(34, 212, 191, 0.1);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--smart-accent);
    transition: background-color 0.3s ease;
  }
  
  .benefit-card:hover .benefit-icon {
    background-color: rgba(34, 212, 191, 0.2);
  }
  
  .benefit-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
  }
  
  .benefit-card p {
    color: var(--smart-blue-600);
    font-size: 0.875rem;
  }
  
  /* Use Cases Section */
  .use-cases {
    padding: 5rem 0;
  }
  
  .cases-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  @media (min-width: 768px) {
    .cases-grid {
      grid-template-columns: repeat(3, 1fr);
    }
  }
  
  .case-card {
    border: 1px solid var(--smart-blue-100);
    background-color: var(--white);
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    transition: box-shadow 0.3s ease;
  }
  
  .case-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  }
  
  .case-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
  }
  
  .case-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
  }
  
  .case-card p {
    color: var(--smart-blue-600);
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
  }
  
  .case-stats {
    background-color: var(--smart-blue-50);
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--smart-blue-100);
  }
  
  .case-stats p {
    color: var(--smart-blue-900);
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 0;
  }
  
  .more-link {
    text-align: center;
    margin-top: 3rem;
  }
  
  .more-link a {
    color: var(--smart-accent);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    transition: color 0.3s ease;
  }
  
  .more-link a:hover {
    color: var(--smart-accent-dark);
  }
  
  .more-link svg {
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
  }
  
  .more-link a:hover svg {
    transform: translateX(3px);
  }
  
  /* Testimonials Section */
  .testimonials {
    padding: 5rem 0;
    background: linear-gradient(to bottom, var(--white), var(--smart-blue-50));
  }
  
  .testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  @media (min-width: 768px) {
    .testimonials-grid {
      grid-template-columns: repeat(3, 1fr);
    }
  }
  
  .testimonial-card {
    background-color: var(--white);
    border: 1px solid var(--smart-blue-100);
    border-radius: 0.75rem;
    padding: 2rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  
  .testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  }
  
  .quote-icon {
    color: rgba(34, 212, 191, 0.2);
    margin-bottom: 1.5rem;
  }
  
  .testimonial-card p {
    color: var(--smart-blue-700);
    font-style: italic;
    margin-bottom: 1.5rem;
  }
  
  .testimonial-author {
    margin-top: auto;
  }
  
  .author-name {
    font-weight: 600;
    color: var(--smart-blue-900);
    margin: 0;
  }
  
  .author-title {
    color: var(--smart-blue-600);
    font-size: 0.875rem;
    margin: 0;
  }
  
  .client-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 4rem;
    opacity: 0.7;
  }
  
  .client-logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--smart-blue-900);
  }
  
  /* Tech Section */
  .tech-section {
    padding: 5rem 0;
  }
  
  .tech-card {
    background: linear-gradient(to bottom right, var(--smart-blue-900), var(--smart-blue-800));
    color: var(--white);
    border-radius: 0.75rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    margin-bottom: 4rem;
  }
  
  .tech-card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2rem;
  }
  
  @media (min-width: 768px) {
    .tech-card-grid {
      grid-template-columns: 1fr 1fr;
      padding: 3rem;
    }
  }
  
  .tech-description h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }
  
  .tech-description p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.5rem;
  }
  
  .tech-description ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .tech-description li {
    display: flex;
    align-items: flex-start;
  }
  
  .check-icon {
    color: var(--smart-accent);
    margin-right: 0.5rem;
    flex-shrink: 0;
    margin-top: 0.25rem;
  }
  
  .tech-code {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .code-window {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    width: 100%;
    overflow: hidden;
  }
  
  .window-controls {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem;
    background-color: rgba(0, 0, 0, 0.2);
  }
  
  .control {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
  }
  
  .red {
    background-color: #ff5f56;
  }
  
  .yellow {
    background-color: #ffbd2e;
  }
  
  .green {
    background-color: #27c93f;
  }
  
  .code-window pre {
    padding: 1.5rem;
    margin: 0;
    overflow-x: auto;
    font-family: monospace;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.5;
  }
  
  .tools-heading {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 2rem;
  }
  
  .tools-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
  
  @media (min-width: 768px) {
    .tools-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }
  
  .tool-card {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--smart-blue-100);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .tool-icon {
    width: 4rem;
    height: 4rem;
    margin-bottom: 1rem;
  }
  
  .tool-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
  }
  
  .tool-card p {
    color: var(--smart-blue-600);
    font-size: 0.875rem;
  }
  
  /* CTA Section */
  .cta-section {
    padding: 5rem 0;
    background: linear-gradient(to bottom right, var(--smart-blue-900), var(--smart-blue-800));
    color: var(--white);
  }
  
  .cta-content {
    max-width: 48rem;
    margin: 0 auto;
    text-align: center;
  }
  
  .cta-content h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
  }
  
  @media (min-width: 768px) {
    .cta-content h2 {
      font-size: 2.5rem;
    }
  }
  
  .cta-content p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2.5rem;
    font-size: 1.125rem;
  }
  
  .cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
  }
  
  @media (min-width: 640px) {
    .cta-buttons {
      flex-direction: row;
    }
  }
  
  /* Footer */
  .footer {
    background-color: var(--smart-blue-900);
    color: var(--white);
    padding: 4rem 0 2rem;
  }
  
  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  @media (min-width: 768px) {
    .footer-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (min-width: 1024px) {
    .footer-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }
  
  .footer-logo {
    margin-bottom: 1rem;
  }
  
  .footer-col p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
  }
  
  .social-links {
    display: flex;
    gap: 1rem;
  }
  
  .social-link {
    width: 2.5rem;
    height: 2.5rem;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
  }
  
  .social-link:hover {
    background-color: rgba(255, 255, 255, 0.2);
  }
  
  .social-icon {
    width: 1.25rem;
    height: 1.25rem;
  }
  
  .footer-col h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
  }
  
  .footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .footer-col ul a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    transition: color 0.3s ease;
  }
  
  .footer-col ul a:hover {
    color: var(--smart-accent);
  }
  
  .contact-info li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
  }
  
  .contact-icon {
    color: var(--smart-accent);
    margin-right: 0.5rem;
    margin-top: 0.25rem;
    flex-shrink: 0;
  }
  
  .footer-bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  @media (min-width: 768px) {
    .footer-bottom {
      flex-direction: row;
      justify-content: space-between;
    }
  }
  
  .footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    margin-bottom: 1rem;
  }
  
  @media (min-width: 768px) {
    .footer-bottom p {
      margin-bottom: 0;
    }
  }
  
  .footer-links {
    display: flex;
    gap: 1.5rem;
  }
  
  .footer-links a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    transition: color 0.3s ease;
  }
  
  .footer-links a:hover {
    color: var(--white);
  }
  
  /* Responsive adjustments */
  @media (max-width: 640px) {
    .btn {
      width: 100%;
    }
  }