:root {
            --primary-color: #25D366; /* WhatsApp green */
            --primary-dark: #128C7E;
            --secondary-color: #075E54;
            --accent-color: #FFD700;
            --text-color: #333333;
            --light-bg: #F8F9FA;
            --white: #FFFFFF;
            --gray: #6C757D;
            --light-gray: #E9ECEF;
        }

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

        body {
            font-family: 'Montserrat', sans-serif;
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        header {
            background-color: var(--white);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }

        .logo {
            display: flex;
            align-items: center;
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-color);
        }

        .logo i {
            margin-right: 10px;
            font-size: 30px;
        }

        .nav-links {
            display: flex;
            list-style: none;
        }

        .nav-links li {
            margin-left: 30px;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 500;
            transition: color 0.3s;
        }

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

        .cta-button {
            background-color: var(--primary-color);
            color: var(--white);
            padding: 10px 20px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            transition: background-color 0.3s;
        }

        .cta-button:hover {
            background-color: var(--primary-dark);
        }

        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, rgba(37, 211, 102, 0.1) 0%, rgba(7, 94, 84, 0.1) 100%);
            padding: 150px 0 80px;
            text-align: center;
        }

        .hero h1 {
            font-size: 56px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--secondary-color);
        }

        .hero p {
            font-size: 20px;
            max-width: 700px;
            margin: 0 auto 30px;
            color: var(--gray);
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 30px;
        }

        .primary-button {
            background-color: var(--primary-color);
            color: var(--white);
            padding: 15px 30px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            transition: background-color 0.3s;
            display: inline-flex;
            align-items: center;
        }

        .primary-button i {
            margin-left: 10px;
        }

        .primary-button:hover {
            background-color: var(--primary-dark);
        }

        .secondary-button {
            background-color: transparent;
            color: var(--primary-color);
            padding: 15px 30px;
            border: 2px solid var(--primary-color);
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            transition: all 0.3s;
        }

        .secondary-button:hover {
            background-color: var(--primary-color);
            color: var(--white);
        }

        .hero-image {
            margin-top: 50px;
            max-width: 100%;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

        /* Benefits Section */
        .benefits {
            padding: 80px 0;
            background-color: var(--light-bg);
        }

        .section-title {
            text-align: center;
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 50px;
            color: var(--secondary-color);
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .benefit-card {
            background-color: var(--white);
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .benefit-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .benefit-icon {
            color: var(--primary-color);
            font-size: 40px;
            margin-bottom: 20px;
        }

        .benefit-card h3 {
            font-size: 22px;
            margin-bottom: 15px;
            color: var(--secondary-color);
        }

        /* Features Section */
        .features {
            padding: 80px 0;
        }

        .features-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .features-text h2 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--secondary-color);
        }

        .features-text p {
            margin-bottom: 20px;
            color: var(--gray);
        }

        .features-list {
            list-style: none;
            margin: 30px 0;
        }

        .features-list li {
            display: flex;
            align-items: flex-start;
            margin-bottom: 15px;
        }

        .features-list i {
            color: var(--primary-color);
            margin-right: 15px;
            flex-shrink: 0;
        }

        .features-image {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

        /* SaaS Model Section */
        .saas-model {
            padding: 80px 0;
            background-color: var(--light-bg);
        }

        .pricing-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }

        .pricing-card {
            background-color: var(--white);
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
            position: relative;
        }

        .pricing-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .pricing-card.featured {
            border: 2px solid var(--primary-color);
        }

        .pricing-card.featured::before {
            content: "Popular";
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary-color);
            color: var(--white);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
        }

        .pricing-card h3 {
            font-size: 24px;
            margin-bottom: 10px;
            color: var(--secondary-color);
        }

        .price {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary-color);
            margin: 20px 0;
        }

        .price span {
            font-size: 16px;
            font-weight: 400;
            color: var(--gray);
        }

        .regular-price {
            font-size: 14px;
            color: var(--gray);
            text-decoration: line-through;
            margin-top: -10px;
            margin-bottom: 15px;
        }

        .pricing-features {
            list-style: none;
            margin: 30px 0;
            text-align: left;
        }

        .pricing-features li {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }

        .pricing-features i {
            color: var(--primary-color);
            margin-right: 10px;
        }

        /* MVP Section */
        .mvp {
            padding: 80px 0;
        }

        .mvp-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .mvp-text h2 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--secondary-color);
        }

        .mvp-text p {
            margin-bottom: 20px;
            color: var(--gray);
        }

        .mvp-image {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

        /* Contact Section */
        .contact {
            padding: 80px 0;
            background-color: var(--light-bg);
        }

        .contact-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .contact-info h2 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--secondary-color);
        }

        .contact-info p {
            margin-bottom: 20px;
            color: var(--gray);
        }

        .contact-details {
            list-style: none;
            margin: 30px 0;
        }

        .contact-details li {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }

        .contact-details i {
            color: var(--primary-color);
            margin-right: 15px;
            font-size: 24px;
        }

        .contact-form {
            background-color: var(--white);
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--secondary-color);
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--light-gray);
            border-radius: 5px;
            font-family: 'Montserrat', sans-serif;
            font-size: 16px;
            transition: border-color 0.3s;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary-color);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        .form-button {
            background-color: var(--primary-color);
            color: var(--white);
            padding: 12px 30px;
            border: none;
            border-radius: 5px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: background-color 0.3s;
            width: 100%;
        }

        .form-button:hover {
            background-color: var(--primary-dark);
        }

        /* Footer */
        footer {
            background-color: var(--secondary-color);
            color: var(--white);
            padding: 40px 0;
            text-align: center;
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            font-size: 24px;
            font-weight: 700;
        }

        .footer-logo i {
            margin-right: 10px;
            font-size: 30px;
        }

        .social-links {
            display: flex;
            list-style: none;
        }

        .social-links li {
            margin-left: 20px;
        }

        .social-links a {
            color: var(--white);
            font-size: 24px;
            transition: color 0.3s;
        }

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

        .copyright {
            margin-top: 30px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .hero h1 {
                font-size: 36px;
            }

            .hero p {
                font-size: 18px;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }

            .features-content,
            .mvp-content,
            .contact-content {
                grid-template-columns: 1fr;
            }

            .footer-content {
                flex-direction: column;
                text-align: center;
            }

            .social-links {
                margin-top: 20px;
            }

            .social-links li {
                margin: 0 10px;
            }
        }

        #scrollToTopBtn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 100;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    padding: 12px;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    display: none;
    transition: opacity 0.3s ease;
}

#scrollToTopBtn:hover {
    background-color: var(--primary-dark);
}