:root {
    --primary: #25D366;
    --secondary: #128C7E;
    --success: #25D366;
    --warning: #F59E0B;
    --error: #EF4444;
    --neutral-dark: #1F2937;
    --neutral-light: #F8FAFC;
    --white: #ffffff;
    --black: #000000;
    
    /* WhatsApp Colors */
    --whatsapp-green: #25D366;
    --whatsapp-dark-green: #128C7E;
    --whatsapp-teal: #075E54;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--neutral-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    transition: all 0.3s ease;
    background: var(--white) !important;
    padding: 1rem 0;
}

.navbar.scrolled {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand img {
    height: 45px;
    width: auto;
    transition: all 0.3s ease;
}

/* Buttons */
.btn {
    font-weight: 600;
    padding: 0.625rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: none;
}

.btn-success {
    background: var(--whatsapp-green);
    color: var(--white);
}

.btn-success:hover {
    background: var(--whatsapp-dark-green);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.btn-primary {
    background: #2563EB;
    color: var(--white);
}

.btn-primary:hover {
    background: #1D4ED8;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 211, 102, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    top: -300px;
    right: -300px;
}

.hero .hero-badge {
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--neutral-dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero .lead {
    font-size: 1.25rem;
    color: #64748B;
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.hero-stats {
    margin-top: 3rem;
}

.stat-box h3 {
    font-size: 2rem;
    color: var(--whatsapp-green);
}

.stat-box small {
    font-size: 0.875rem;
    color: #64748B;
}

/* Hero Image */
.hero-image {
    position: relative;
    z-index: 1;
}

.hero-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.1) 0%, transparent 100%);
    border-radius: 20px;
    top: -50px;
    left: -50px;
    z-index: 0;
}

.hero-phone-mockup {
    position: relative;
    z-index: 2;
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid var(--whatsapp-green);
    border-radius: 20px;
    opacity: 0;
    animation: pulse 2s infinite;
}

.ring-2 {
    animation-delay: 0.5s;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1.1);
        opacity: 0;
    }
}

/* Benefits Section */
.benefits {
    padding: 5rem 0;
}

.benefit-card {
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
    margin-bottom: 1rem;
}

/* CTA Banner */
.cta-banner {
    padding: 2rem 0;
}

.cta-banner p {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
}

/* Features Section */
.features {
    padding: 6rem 0;
}

.feature-box {
    transition: all 0.3s ease;
}

.feature-box:hover {
    background: var(--neutral-light);
    transform: translateX(5px);
}

.icon-wrapper {
    width: 64px;
    height: 64px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Complete Solution Section */
.all-in-one {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

/* Testimonials */
.testimonials {
    padding: 6rem 0;
}

.testimonial-card {
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.testimonial-card:hover {
    border-left-color: var(--whatsapp-green);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.testimonial-stars i {
    font-size: 1.25rem;
}

.testimonial-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: #374151;
}

/* Comparison Section */
.comparison {
    padding: 6rem 0;
}

.comparison-card {
    transition: all 0.3s ease;
}

.card-header h5 {
    font-size: 1.25rem;
    font-weight: 700;
}

/* Pricing Section */
.pricing {
    padding: 6rem 0;
}

.pricing .card {
    transition: all 0.3s ease;
}

.pricing .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.pricing .card-header {
    border-radius: 12px 12px 0 0 !important;
}

.pricing .border-success {
    border: 2px solid var(--whatsapp-green) !important;
}

.badge {
    font-weight: 600;
    padding: 0.5rem 1rem;
}

/* FAQ Section */
.faq {
    padding: 6rem 0;
}

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

.accordion-button:not(.collapsed) {
    background: var(--success);
    color: var(--white);
}

.accordion-button:focus {
    box-shadow: none;
}

/* Final CTA */
.final-cta {
    padding: 8rem 0;
    background: linear-gradient(135deg, var(--whatsapp-dark-green) 0%, var(--whatsapp-teal) 100%);
}

.final-cta h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 2rem;
}

.final-cta .lead {
    font-size: 1.5rem;
    margin-bottom: 3rem;
}

.final-cta .btn-light {
    padding: 1.25rem 3rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.cta-guarantee,
.cta-support {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.cta-guarantee i,
.cta-support i {
    font-size: 2rem;
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
    background: var(--neutral-dark);
}

.footer a {
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer a:hover {
    color: var(--white) !important;
    opacity: 1;
}

.social-links a {
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-3px);
    color: var(--whatsapp-green) !important;
}

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

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

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .final-cta h2 {
        font-size: 2rem;
    }
    
    .final-cta .lead {
        font-size: 1.125rem;
    }
}

/* Z-index Utility */
.z-index-1 {
    position: relative;
    z-index: 1;
}

/* Badge Colors */
.bg-success-subtle {
    background-color: rgba(37, 211, 102, 0.1);
}

.text-success {
    color: var(--whatsapp-green) !important;
}

/* Scroll Animation */
.card, .stat, .benefit-card, .testimonial-card {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.card.animate-in,
.stat.animate-in,
.benefit-card.animate-in,
.testimonial-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Utilities */
.shadow-lg {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15) !important;
}

.rounded-3 {
    border-radius: 12px !important;
}

/* What's App specific styling */
.text-white-50 {
    color: rgba(255, 255, 255, 0.5);
}

/* Loading states */
.loading {
    opacity: 0.5;
    pointer-events: none;
}