:root {
    --primary-color: #4F46E5;
    --secondary-color: #6B7280;
    --success-color: #10B981;
    --dark-color: #111827;
    --light-color: #F9FAFB;
    --white: #FFFFFF;
    --border-color: #E5E7EB;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--white);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #3730A3;
    border-color: #3730A3;
    transform: translateY(-1px);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.btn-outline-dark {
    color: var(--dark-color);
    border-color: var(--border-color);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.btn-outline-dark:hover {
    background-color: var(--dark-color);
    border-color: var(--dark-color);
    color: var(--white);
    transform: translateY(-1px);
}

.navbar {
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
}

.navbar-brand .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
}

.navbar-brand .logo i {
    font-size: 1.5rem;
}

.nav-link {
    color: var(--secondary-color) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color) !important;
}

.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: 2rem 0;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-intro {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-intro h3 {
    color: var(--white);
}

.hero-intro p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image img {
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.features-section {
    padding: 5rem 0;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--primary-color), #8B5CF6);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--white);
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--secondary-color);
    line-height: 1.6;
}

.how-it-works-section {
    background-color: var(--light-color);
}

.step-card {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    height: 100%;
    transition: transform 0.3s ease;
}

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

.step-number {
    width: 3rem;
    height: 3rem;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.step-card p {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.step-card img {
    max-height: 200px;
    object-fit: cover;
}

.technology-trends-section {
    padding: 5rem 0;
}

.trend-card {
    padding: 2rem;
    background: var(--white);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    height: 100%;
    transition: transform 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

.trend-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.trend-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.trend-card h3 i {
    color: var(--primary-color);
}

.trend-card p {
    color: var(--secondary-color);
    line-height: 1.6;
}

.testimonials-section {
    background-color: var(--light-color);
}

.testimonial-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    height: 100%;
    transition: transform 0.3s ease;
}

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

.testimonial-content {
    margin-bottom: 2rem;
}

.testimonial-content p {
    font-style: italic;
    color: var(--secondary-color);
    font-size: 1.1rem;
    line-height: 1.6;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-author h5 {
    margin-bottom: 0.25rem;
    font-weight: 600;
    color: var(--dark-color);
}

.testimonial-author p {
    margin-bottom: 0;
    color: var(--secondary-color);
    font-size: 0.875rem;
}

.pricing-preview-section {
    padding: 5rem 0;
}

.pricing-preview-card {
    background: var(--white);
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
}

.pricing-features {
    list-style: none;
    padding: 0;
}

.pricing-features li {
    padding: 0.5rem 0;
    font-size: 1.1rem;
}

.pricing-cta {
    background: var(--light-color);
    padding: 2rem;
    border-radius: 1rem;
    border: 2px dashed var(--primary-color);
}

.cta-section {
    background: linear-gradient(135deg, var(--primary-color), #8B5CF6);
}

.footer {
    background-color: var(--dark-color);
}

.footer-brand .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-brand .logo i {
    font-size: 1.5rem;
}

.footer h5 {
    color: var(--white);
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #9CA3AF;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.contact-info p {
    color: #9CA3AF;
    margin-bottom: 0.5rem;
}

.contact-info i {
    color: var(--primary-color);
    width: 1.25rem;
}

.pricing-hero {
    padding: 3rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
}

.pricing-toggle {
    background: var(--white);
    padding: 0.5rem;
    border-radius: 2rem;
    display: flex;
    align-items: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.pricing-cards {
    padding: 3rem 0;
}

.pricing-card {
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -0.75rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.pricing-header p {
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.pricing-price {
    text-align: center;
    margin-bottom: 2rem;
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark-color);
}

.price-period {
    color: var(--secondary-color);
    font-size: 1rem;
}

.pricing-features ul {
    list-style: none;
    padding: 0;
}

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-cta {
    margin-top: 2rem;
}

.feature-comparison {
    background: var(--white);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.feature-comparison .row {
    padding: 0.75rem 0;
    align-items: center;
}

.feature-comparison .row:nth-child(even) {
    background-color: var(--light-color);
}

.social-platform-card {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    height: 100%;
}

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

.platform-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--primary-color), #8B5CF6);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--white);
    font-size: 1.5rem;
}

.social-platform-card h5 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.social-platform-card p {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.integration-step {
    text-align: center;
    padding: 1.5rem;
}

.step-icon {
    width: 3rem;
    height: 3rem;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.25rem;
}

.integration-step h5 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.integration-step p {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.accordion-button {
    font-weight: 600;
    color: var(--dark-color);
}

.accordion-button:not(.collapsed) {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.contact-form {
    background: var(--white);
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.form-control {
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(79, 70, 229, 0.25);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.contact-info-card {
    background: var(--light-color);
    padding: 2rem;
    border-radius: 1rem;
    height: 100%;
}

.contact-info-card h4 {
    color: var(--dark-color);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.contact-info-card .contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.contact-info-card .contact-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-info-card .contact-details h6 {
    margin-bottom: 0.25rem;
    font-weight: 600;
    color: var(--dark-color);
}

.contact-info-card .contact-details p {
    margin-bottom: 0;
    color: var(--secondary-color);
}

.legal-content {
    background: var(--white);
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.legal-content h2 {
    color: var(--dark-color);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.legal-content h3 {
    color: var(--dark-color);
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.legal-content p {
    color: var(--secondary-color);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.legal-content ul {
    color: var(--secondary-color);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.legal-content li {
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .hero-intro {
        margin-top: 2rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-card {
    text-align: center;
    padding: 1.5rem;
}

.stat-card h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--secondary-color);
    margin-bottom: 0;
}