/* WhatsApp + Agente de Voz IA - Styles */

:root {
    --whatsapp-green: #25D366;
    --whatsapp-dark: #128C7E;
    --whatsapp-light: #DCF8C6;
    --voice-purple: #7C3AED;
    --accent-orange: #F97316;
}

/* Navigation WhatsApp Styles */
.whatsapp-nav-link {
    color: var(--whatsapp-green) !important;
    font-weight: 600;
}

.whatsapp-nav-link i {
    margin-right: 6px;
}

.whatsapp-nav-link:hover {
    color: var(--whatsapp-dark) !important;
}

.whatsapp-nav-link.active {
    background: rgba(37, 211, 102, 0.1);
    border-radius: 8px;
}

.whatsapp-cta {
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    color: white !important;
    border: none;
}

.mega-menu-item.whatsapp-highlight .menu-card {
    border: 2px solid var(--whatsapp-green);
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.05) 0%, rgba(18, 140, 126, 0.05) 100%);
}

.mega-menu-item.whatsapp-highlight .menu-card h3 {
    color: var(--whatsapp-green);
}

/* Hero Section */
.whatsapp-hero {
    background: linear-gradient(135deg, #0a1628 0%, #1e3a5f 50%, #0a1628 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 100px;
}

.whatsapp-hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.whatsapp-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(37, 211, 102, 0.15);
    border: 1px solid rgba(37, 211, 102, 0.3);
    color: var(--whatsapp-green);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.whatsapp-hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: white;
    line-height: 1.1;
    margin-bottom: 24px;
}

.highlight-green {
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, #34f77a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight-blue {
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.whatsapp-hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 32px;
}

.stat-highlight {
    color: var(--whatsapp-green);
    font-weight: 700;
}

.whatsapp-hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--whatsapp-green);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 4px;
}

.whatsapp-hero-ctas {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.cta-button.whatsapp-primary {
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    font-size: 1.1rem;
    font-weight: 600;
}

.cta-button.secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 16px 32px;
}

/* Phone Mockup */
.whatsapp-hero-visual {
    display: flex;
    justify-content: center;
    position: relative;
}

.phone-mockup {
    width: 320px;
    background: #1a1a1a;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.5);
    position: relative;
}

.phone-screen {
    background: #f0f2f5;
    border-radius: 32px;
    overflow: hidden;
    height: 600px;
    display: flex;
    flex-direction: column;
}

.chat-header {
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
}

.chat-info h4 {
    color: white;
    font-size: 16px;
    font-weight: 600;
    margin: 0;
}

.chat-info .status {
    color: rgba(255, 255, 255, 0.8);
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.chat-messages {
    flex: 1;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
}

.message {
    max-width: 80%;
    padding: 12px 16px;
    border-radius: 16px;
    position: relative;
}

.message.user {
    background: var(--whatsapp-light);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.message.bot {
    background: white;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.message p {
    margin: 0 0 4px 0;
    font-size: 14px;
    line-height: 1.4;
    color: #111;
}

.message .time {
    font-size: 11px;
    color: #667781;
    display: flex;
    align-items: center;
    gap: 4px;
    justify-content: flex-end;
}

.quick-replies {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.quick-replies span {
    background: rgba(37, 211, 102, 0.1);
    color: var(--whatsapp-dark);
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid rgba(37, 211, 102, 0.3);
}

.chat-input {
    background: white;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-top: 1px solid #e9edef;
}

.chat-input input {
    flex: 1;
    border: none;
    background: #f0f2f5;
    padding: 10px 16px;
    border-radius: 20px;
    font-size: 14px;
    outline: none;
}

.floating-badge {
    position: absolute;
    background: linear-gradient(135deg, var(--voice-purple) 0%, #6d28d9 100%);
    color: white;
    padding: 12px 20px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.3);
    animation: float 3s ease-in-out infinite;
}

.voice-badge {
    bottom: 100px;
    right: -60px;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: auto;
}

/* Section Styles */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(37, 211, 102, 0.1);
    color: var(--whatsapp-green);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: #111;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-header p {
    font-size: 1.125rem;
    color: #666;
    line-height: 1.6;
}

/* Benefits Section */
.whatsapp-benefits {
    padding: 100px 0;
    background: white;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.benefit-card {
    background: white;
    border-radius: 24px;
    padding: 40px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.benefit-card.featured {
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    border-color: var(--voice-purple);
}

.benefit-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 24px;
}

.benefit-icon.whatsapp-green {
    background: rgba(37, 211, 102, 0.1);
    color: var(--whatsapp-green);
}

.benefit-icon.voice-purple {
    background: rgba(124, 58, 237, 0.1);
    color: var(--voice-purple);
}

.benefit-icon.unified-orange {
    background: rgba(249, 115, 22, 0.1);
    color: var(--accent-orange);
}

.benefit-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111;
    margin-bottom: 12px;
}

.benefit-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

.benefit-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.benefit-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    color: #374151;
}

.benefit-list li i {
    color: var(--whatsapp-green);
    font-size: 14px;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background: linear-gradient(180deg, #f9fafb 0%, white 100%);
}

.steps-container {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
}

.step-card {
    flex: 1;
    min-width: 300px;
    max-width: 350px;
    background: white;
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.1) 0%, rgba(18, 140, 126, 0.1) 100%);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--whatsapp-green);
    margin: 20px auto 24px;
}

.step-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #111;
    margin-bottom: 12px;
}

.step-content p {
    color: #666;
    line-height: 1.6;
}

.step-connector {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--whatsapp-green), var(--voice-purple));
    align-self: center;
    position: relative;
}

/* Features Section */
.whatsapp-features {
    padding: 100px 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-item {
    background: #f9fafb;
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-3px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    margin-bottom: 20px;
}

.feature-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #111;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.5;
}

/* ROI Section */
.roi-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0a1628 0%, #1e3a5f 100%);
}

.roi-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.roi-content .section-badge {
    background: rgba(37, 211, 102, 0.2);
}

.roi-content h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.roi-content > p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: 32px;
}

.roi-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.roi-stat {
    text-align: center;
}

.roi-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--whatsapp-green);
}

.roi-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.comparison-chart {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 30px;
    height: 300px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 40px;
}

.chart-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.chart-item.human .chart-bar {
    background: linear-gradient(180deg, #ef4444 0%, #dc2626 100%);
}

.chart-item.ai .chart-bar {
    background: linear-gradient(180deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
}

.chart-bar {
    width: 80px;
    border-radius: 12px 12px 0 0;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 16px;
}

.chart-value {
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
}

.chart-item.vs {
    font-size: 1.5rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 60px;
}

.chart-label {
    text-align: center;
    margin-top: 16px;
    color: white;
}

.savings-badge {
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    color: white;
    padding: 16px 32px;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 1.1rem;
    margin-top: 24px;
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3);
}

/* Use Cases Section */
.use-cases {
    padding: 100px 0;
    background: #f9fafb;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.use-case-card {
    background: white;
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s ease;
}

.use-case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.use-case-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    margin-bottom: 20px;
}

.use-case-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #111;
    margin-bottom: 16px;
}

.use-case-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.use-case-card li {
    padding: 8px 0;
    color: #666;
    font-size: 0.95rem;
    border-bottom: 1px solid #f3f4f6;
}

/* Testimonials Section */
.testimonials {
    padding: 100px 0;
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
}

.testimonial-card {
    background: #f9fafb;
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.testimonial-card.featured {
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.05) 0%, rgba(18, 140, 126, 0.05) 100%);
    border: 2px solid rgba(37, 211, 102, 0.2);
}

.testimonial-stars {
    color: #fbbf24;
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 1rem;
    color: #374151;
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.author-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #111;
    margin: 0;
}

.author-info span {
    font-size: 0.875rem;
    color: #666;
}

/* CTA Section */
.whatsapp-cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 16px;
}

.cta-content > p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto 40px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.cta-button.whatsapp-large {
    background: white;
    color: var(--whatsapp-dark);
    padding: 20px 32px;
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.1rem;
}

.cta-button.phone-cta {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 20px 32px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.trust-badges {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    font-weight: 500;
}

/* Footer */
.footer {
    background: #0a1628;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s ease;
}

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

.footer-links h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

/* Responsive */
@media (max-width: 1024px) {
    .whatsapp-hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .whatsapp-hero-stats {
        justify-content: center;
    }
    
    .whatsapp-hero-ctas {
        justify-content: center;
    }
    
    .whatsapp-hero-visual {
        order: -1;
    }
    
    .phone-mockup {
        width: 280px;
    }
    
    .phone-screen {
        height: 500px;
    }
    
    .voice-badge {
        right: -20px;
        bottom: 80px;
    }
    
    .roi-container {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .whatsapp-hero {
        padding: 100px 0 60px;
    }
    
    .whatsapp-hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .benefits-grid,
    .features-grid,
    .use-cases-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-container {
        flex-direction: column;
        align-items: center;
    }
    
    .step-connector {
        width: 2px;
        height: 40px;
        transform: rotate(90deg);
    }
    
    .comparison-chart {
        height: 250px;
        padding: 20px;
    }
    
    .chart-bar {
        width: 60px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* ROI Calculator Styles */
.roi-calculator {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.roi-calculator h4 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 20px;
    text-align: center;
}

.calculator-inputs {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-group label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    font-weight: 500;
}

.input-group input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    padding: 12px 16px;
    color: white;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

.input-group input:focus {
    border-color: var(--whatsapp-green);
    background: rgba(255, 255, 255, 0.15);
}

.calculator-results {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: none;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    color: rgba(255, 255, 255, 0.8);
}

.result-item.highlight {
    padding: 16px 0;
    margin-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.result-label {
    font-size: 0.95rem;
}

.result-value {
    font-weight: 600;
    font-size: 1.1rem;
    color: white;
}

.result-value.savings {
    color: #4ade80;
}

.result-value.big-savings {
    color: var(--whatsapp-green);
    font-size: 1.4rem;
    font-weight: 700;
}

@media (max-width: 768px) {
    .roi-calculator {
        padding: 20px;
    }
    
    .calculator-inputs {
        gap: 12px;
    }
}

/* FONDO MENOS INTENSO PARA MEJOR LECTURA */
.whatsapp-solution-page {
    background-color: #f8f9fa;
}

.whatsapp-benefits,
.whatsapp-features,
.use-cases,
.testimonials {
    background: #f8f9fa;
}

.benefit-card,
.feature-item,
.use-case-card,
.testimonial-card {
    background: #ffffff;
}

.how-it-works {
    background: linear-gradient(180deg, #f1f3f4 0%, #f8f9fa 100%);
}

.step-card {
    background: #ffffff;
}

.container {
    background: transparent;
}

/* Texto más suave */
.section-header p {
    color: #5f6368;
}

.benefit-card p,
.feature-item p,
.use-case-card li {
    color: #5f6368;
}

/* Mejor contraste en las cards */
.benefit-card:hover,
.feature-item:hover,
.use-case-card:hover {
    background: #ffffff;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}