:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --accent-color: #28a745;
    --padding-section: 80px 0;
    --border-radius: 8px;
    --box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --font-family: 'Poppins', sans-serif;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    margin: 0;
    background-color: var(--light-color);
    color: var(--dark-color);
}

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

/* Header Hero */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #4ab3ff 100%);
    color: var(--light-color);
    text-align: center;
    padding: 150px 0;
    margin-bottom: 40px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px;
    line-height: 1.8;
}

/* Features Section */
.features {
    padding: var(--padding-section);
    text-align: center;
    background-color: white;
}

.features h2 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    font-weight: 600;
    color: var(--dark-color);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.feature-card {
    background-color: var(--light-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease-in-out;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.feature-card p {
    font-size: 1rem;
    color: var(--secondary-color);
}

/* Demo CTA Section */
.demo-cta {
    padding: var(--padding-section);
    background-color: var(--gray-light);
    text-align: center;
}

.demo-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    font-weight: 600;
    color: var(--dark-color);
}

.demo-cta p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 30px;
    color: var(--secondary-color);
}

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

.btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--light-color);
    border: none;
}

.btn-primary:hover {
    background-color: #0056b3;
}

.btn-secondary {
    background-color: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.demo-cta .note {
    font-size: 0.9rem;
    color: var(--secondary-color);
}

/* Footer */
.site-footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    text-align: center;
    padding: 30px 0;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: 100px 20px;
    }

    .hero-content h1 {
        font-size: 2.8rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .features h2 {
        font-size: 2rem;
    }

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

    .demo-cta h2 {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .btn {
        width: 80%;
        text-align: center;
    }
}