:root {
      --primary: #0484a7;
      --secondary: #69a239;
      --light: #f4f8fa;
      --dark: #18344c;
    }
    body {
      background: var(--light);
      color: var(--dark);
      font-family: 'Montserrat', Arial, sans-serif;
    }
    .navbar {
      background: linear-gradient(90deg, var(--primary) 70%, var(--secondary) 100%);
      color: #fff;
      box-shadow: 0 2px 8px rgba(4,132,167,0.15);
    }
    .navbar .nav-link, .navbar .navbar-brand {
      color: #fff !important;
      font-weight: 600;
    }
    .logo-img {
      max-height: 70px;
      margin-right: 1rem;
    }
    .section-title {
      font-size: 2rem;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 1rem;
    }
    .section {
      padding: 3rem 0;
    }
    .card-service, .card-why {
      border: none;
      border-radius: 1.5rem;
      box-shadow: 0 3px 16px 0 rgba(4,132,167,0.07);
      text-align: center;
      background: #fff;
      margin-bottom: 2rem;
      transition: transform 0.2s;
    }
    .card-service:hover, .card-why:hover {
      transform: translateY(-5px) scale(1.03);
      box-shadow: 0 4px 18px 0 rgba(4,132,167,0.15);
    }
    .card-service .fa, .card-why .fa {
      font-size: 2.5rem;
      color: var(--secondary);
      margin-bottom: 1rem;
    }
    .btn-primary {
      background: linear-gradient(90deg, var(--primary) 70%, var(--secondary) 100%);
      border: none;
      border-radius: 50px;
      font-weight: 600;
      padding: 0.7rem 2rem;
      transition: background 0.3s;
    }
    .btn-primary:hover {
      background: linear-gradient(90deg, var(--secondary) 70%, var(--primary) 100%);
      color: #fff;
    }
    .contact-card {
      background: #fff;
      border-radius: 1.5rem;
      box-shadow: 0 3px 16px 0 rgba(104,162,57,0.07);
      padding: 2rem;
    }
    .form-label {
      color: var(--primary);
      font-weight: 500;
    }
    .whatsapp-float {
      position: fixed;
      width: 60px; height: 60px;
      bottom: 28px; right: 28px;
      background: #25d366;
      color: #fff;
      border-radius: 50%;
      text-align: center;
      font-size: 2.7rem;
      z-index: 999;
      box-shadow: 0 3px 16px 0 rgba(37,211,102,0.14);
      display: flex; align-items: center; justify-content: center;
      transition: background 0.2s;
    }

    .whatsapp-float:hover {
      background-color: #1ebe5d;
      transform: scale(1.05);
    }
    .footer {
      background: linear-gradient(90deg, var(--primary) 70%, var(--secondary) 100%);
      color: #fff;
      text-align: center;
      padding: 1.2rem 0 0.5rem 0;
      border-radius: 1.5rem 1.5rem 0 0;
      margin-top: 3rem;
      font-size: 1rem;
    }
    /* Alternar fondo para sección competitiva */
    .competitive-section {
      background: linear-gradient(110deg, #f4f8fa 60%, #e8f7ee 100%);
    }
    /* Responsive ajuste */
    @media (max-width: 991px) {
      .section {
        padding: 2rem 0;
      }
      .logo-img {
        max-height: 50px;
      }
    }