:root {
      --primary-color: #1A3C40;
      --primary-hover: #153136;
      --secondary-color: #f8fafc;
      --secondary-hover: #e2e8f0;
      --background-light: #ffffff;
      --background-dark: #1e293b;
      --text-light: #1e293b;
      --text-dark: #f1f5f9;
      --success-color: #25830b;
      --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
      --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
      --border-radius: 1rem;
      --transition: all 0.3s ease;
      --font-primary: 'Inter', 'Roboto', system-ui, sans-serif;
      --gradient-bg: linear-gradient(135deg, #f3f7fa 0%, #e0e8f0 100%);
    }

    [data-theme="dark"] {
      --background-light: var(--background-dark);
      --text-light: var(--text-dark);
      --secondary-color: #2d3748;
      --secondary-hover: #4b5563;
      --gradient-bg: linear-gradient(135deg, #1e293b 0%, #2d3748 100%);
    }

    *, *::before, *::after {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: var(--font-primary);
      background: var(--gradient-bg);
      color: var(--text-light);
      line-height: 1.6;
      font-size: 1rem;
      scroll-behavior: smooth;
      -webkit-font-smoothing: antialiased;
    }

    nav {
      position: sticky;
      top: 0;
      background: rgba(255, 255, 255, 0.95);
      box-shadow: var(--shadow-sm);
      z-index: 1000;
      padding: 1rem 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      backdrop-filter: blur(10px);
    }

    .nav-logo {
      display: flex;
      align-items: center;
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary-color);
    }

    .nav-logo img {
      max-width: 120px;
      margin-right: 0.5rem;
    }

    nav ul {
      display: flex;
      gap: 1.5rem;
      list-style: none;
    }

    nav a {
      text-decoration: none;
      color: var(--text-light);
      font-weight: 500;
      padding: 0.5rem;
      transition: var(--transition);
    }

    nav a:hover, nav a.active {
      color: var(--primary-color);
      border-bottom: 2px solid var(--primary-color);
    }

    .nav-toggle {
      display: none;
      font-size: 1.5rem;
      background: none;
      border: none;
      color: var(--text-light);
      cursor: pointer;
    }

    .theme-toggle {
      background: none;
      border: none;
      font-size: 1.2rem;
      color: var(--text-light);
      cursor: pointer;
    }

    .hero {
      text-align: center;
      padding: 6rem 1rem;
      /* Image related to sales profitability */
      background: var(--primary-color) url('https://images.pexels.com/photos/6694543/pexels-photo-6694543.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=1') no-repeat center/cover;
      color: white;
      position: relative;
      min-height: 400px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.5);
      z-index: 0;
    }

    .hero h1, .hero p, .hero button {
      position: relative;
      z-index: 1;
    }

    .hero h1 {
      font-size: 3rem;
      margin-bottom: 1rem;
    }

    .hero p {
      font-size: 1.2rem;
      margin-bottom: 2rem;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero button {
      padding: 1rem 2rem;
      background: var(--primary-color);
      color: white;
      border: none;
      border-radius: var(--border-radius);
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }

    .hero button:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
    }

    .carousel-section {
      padding: 4rem 1rem;
      text-align: center;
    }

    .carousel-section h2 {
      font-size: 2.5rem;
      color: var(--primary-color);
      margin-bottom: 2rem;
    }

    .swiper {
      max-width: 1200px;
      margin: 0 auto;
    }

    .swiper-slide {
      background: var(--background-light);
      border-radius: var(--border-radius);
      padding: 2rem;
      box-shadow: var(--shadow-md);
      text-align: center;
    }

    .swiper-slide i {
      font-size: 2.5rem;
      color: var(--primary-color);
      margin-bottom: 1rem;
    }

    .swiper-slide h3 {
      font-size: 1.5rem;
      margin-bottom: 0.5rem;
    }

    .swiper-slide p {
      color: var(--text-light);
    }

    .plans-section {
      padding: 4rem 1rem;
      background: var(--background-light);
      border-radius: var(--border-radius);
    }

    .plans-section h2 {
      text-align: center;
      font-size: 2.5rem;
      color: var(--primary-color);
      margin-bottom: 3rem;
    }

    .plans-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
      max-width: 1200px;
      margin: 0 auto;
    }

    .plan-card {
      background: var(--background-light);
      border-radius: var(--border-radius);
      box-shadow: var(--shadow-md);
      padding: 2rem;
      text-align: center;
      transition: var(--transition);
    }

    .plan-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
    }

    .plan-card h3 {
      font-size: 1.8rem;
      color: var(--primary-color);
      margin-bottom: 1rem;
    }

    .plan-card .price {
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 1.5rem;
    }

    .plan-card .price span {
      font-size: 1rem;
      font-weight: 400;
    }

    .plan-card ul {
      list-style: none;
      margin-bottom: 2rem;
    }

    .plan-card ul li {
      margin-bottom: 0.75rem;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .plan-card ul li i {
      color: var(--success-color);
      margin-right: 0.5rem;
    }

    .plan-card button {
      padding: 0.8rem 2rem;
      background: var(--primary-color);
      color: white;
      border: none;
      border-radius: var(--border-radius);
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }

    .plan-card button:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
    }

    footer {
      background: var(--secondary-color);
      padding: 3rem 1rem;
      text-align: center;
    }

    footer p {
      font-size: 0.9rem;
      margin-bottom: 1rem;
    }

    .footer-links {
      display: flex;
      justify-content: center;
      gap: 1.5rem;
      margin-bottom: 1rem;
    }

    .footer-links a {
      color: var(--text-light);
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: var(--primary-color);
    }

    .social-icons {
      display: flex;
      justify-content: center;
      gap: 1rem;
    }

    .social-icons a {
      color: var(--text-light);
      font-size: 1.5rem;
      transition: var(--transition);
    }

    .social-icons a:hover {
      color: var(--primary-color);
    }

    .modal {
      display: none;
      position: fixed;
      z-index: 1000;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.6);
    }

    .modal-content {
      background: var(--background-light);
      margin: 15% auto;
      padding: 2rem;
      border-radius: var(--border-radius);
      width: 90%;
      max-width: 500px;
      box-shadow: var(--shadow-lg);
    }

    .close {
      position: absolute;
      top: 1rem;
      right: 1.5rem;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-light);
    }

    .btn-contato {
      display: inline-flex;
      align-items: center;
      background: var(--primary-color);
      color: white;
      padding: 0.8rem 1.5rem;
      margin: 0.5rem;
      border-radius: var(--border-radius);
      text-decoration: none;
      font-weight: 600;
      transition: var(--transition);
    }

    .btn-contato:hover {
      background: var(--primary-hover);
    }

    .btn-contato i {
      margin-right: 0.5rem;
    }

    .btn-contato.whatsapp {
      background: #25d366;
    }

    .btn-contato.whatsapp:hover {
      background: #1ebe5d;
    }

    @media (max-width: 768px) {
      .hero h1 {
        font-size: 2.5rem;
      }

      .hero p {
        font-size: 1rem;
      }

      .plans-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 600px) {
      nav ul {
        flex-direction: column;
        position: fixed;
        top: 4rem;
        right: 0;
        background: var(--background-light);
        width: 200px;
        padding: 1rem;
        transform: translateX(100%);
        transition: var(--transition);
      }

      nav ul.active {
        transform: translateX(0);
      }

      .nav-toggle {
        display: block;
      }
    }