/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Header */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: background 0.3s ease, backdrop-filter 0.3s ease;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.nav-brand {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
    z-index: 1001;
}

.nav-brand i {
    margin-right: 0.5rem;
    color: #4285f4;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    transition: all 0.3s ease;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-menu a:hover {
    color: #4285f4;
}

.nav-menu a:focus {
    outline: 2px solid #4285f4;
    outline-offset: 2px;
    border-radius: 4px;
}

.nav-buttons {
    display: flex;
    gap: 1rem;
    z-index: 1001;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    transition: transform 0.3s ease;
}

.mobile-menu-toggle:focus {
    outline: 2px solid #4285f4;
    outline-offset: 2px;
    border-radius: 4px;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Buttons */
.btn-primary {
    background: #4285f4;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    font-size: 1rem;
}

.btn-primary:hover {
    background: #3367d6;
    transform: translateY(-2px);
}

.btn-primary:focus {
    outline: 2px solid #4285f4;
    outline-offset: 2px;
}

.btn-secondary {
    background: white;
    color: #4285f4;
    border: 2px solid #4285f4;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    font-size: 1rem;
}

.btn-secondary:hover {
    background: #4285f4;
    color: white;
    transform: translateY(-2px);
}

.btn-secondary:focus {
    outline: 2px solid #4285f4;
    outline-offset: 2px;
}

.btn-outline {
    background: transparent;
    color: #333;
    border: 2px solid #ddd;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    width: 100%;
    font-size: 1rem;
}

.btn-outline:hover {
    border-color: #4285f4;
    color: #4285f4;
    transform: translateY(-2px);
}

.btn-outline:focus {
    outline: 2px solid #4285f4;
    outline-offset: 2px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.highlight {
    color: white;

}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

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

.hero-features {
    display: flex;
    gap: 2rem;
    font-size: 0.9rem;
    opacity: 0.8;
    flex-wrap: wrap;
}

/* WhatsApp Demo */
.whatsapp-demo {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    max-width: 400px;
    margin: 0 auto;
    animation: float 6s ease-in-out infinite;
}

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

.whatsapp-header {
    background: #25d366;
    color: white;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.chat-messages {
    padding: 1.5rem;
    background: #f0f0f0;
    min-height: 300px;
}

.message {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 18px;
    max-width: 80%;
    font-size: 0.9rem;
    line-height: 1.4;
    animation: fadeInMessage 0.5s ease forwards;
    opacity: 0;
}

.message:nth-child(1) { animation-delay: 0.5s; }
.message:nth-child(2) { animation-delay: 1s; }
.message:nth-child(3) { animation-delay: 1.5s; }
.message:nth-child(4) { animation-delay: 2s; }

@keyframes fadeInMessage {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.user-message {
    background: #dcf8c6;
    margin-left: auto;
    color: #333;
    transform: translateY(20px);
}

.bot-message {
    background: white;
    color: #333;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    transform: translateY(20px);
}

/* Stats Section */
.stats {
    background: #f8f9fa;
    padding: 4rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    font-weight: 700;
    color: #4285f4;
    margin-bottom: 0.5rem;
    transition: transform 0.3s ease;
}

.stat-item:hover h3 {
    transform: scale(1.1);
}

.stat-item p {
    color: #666;
    font-weight: 500;
}

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #333;
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* How it Works Section */
.how-it-works {
    background: #f8f9fa;
    padding: 6rem 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.step-card {
    text-align: center;
    background: white;
    padding: 3rem 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.step-number {
    width: 60px;
    height: 60px;
    background: #4285f4;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    transition: transform 0.3s ease;
}

.step-card:hover .step-number {
    transform: scale(1.1);
}

.step-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

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

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

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.testimonial-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.stars {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.testimonial-card blockquote {
    margin: 0;
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: #333;
    line-height: 1.6;
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    background: #4285f4;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.author-info strong {
    display: block;
    color: #333;
    margin-bottom: 0.25rem;
}

.author-info span {
    color: #666;
    font-size: 0.9rem;
}

/* Pricing Section */
.pricing {
    background: #f8f9fa;
    padding: 6rem 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.pricing-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    text-align: center;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.pricing-card.popular {
    border: 3px solid #4285f4;
    transform: scale(1.05);
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-5px);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #4285f4;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.price {
    margin-bottom: 2rem;
}

.currency {
    font-size: 1.2rem;
    color: #666;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: #333;
}

.period {
    font-size: 1rem;
    color: #666;
}

.features-list {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.features-list li {
    padding: 0.5rem 0;
    color: #333;
    line-height: 1.4;
}

.pricing-note {
    text-align: center;
    color: #666;
}

.pricing-note p {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    font-size: 0.9rem;
    opacity: 0.8;
    flex-wrap: wrap;
}

/* Animation Classes */
.animate-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        gap: 3rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background: white;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        font-size: 1.2rem;
        z-index: 1000;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-buttons {
        position: fixed;
        bottom: 2rem;
        left: 50%;
        transform: translateX(-50%);
        flex-direction: column;
        width: calc(100% - 4rem);
        max-width: 300px;
        z-index: 1001;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease;
    }
    
    .nav-menu.active ~ .nav-buttons {
        opacity: 1;
        pointer-events: all;
    }
    
    .navbar {
        padding: 1rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .pricing-card.popular {
        transform: none;
    }
    
    .pricing-card.popular:hover {
        transform: translateY(-5px);
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-features {
        flex-direction: column;
        gap: 1rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
        line-height: 1.3;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .whatsapp-demo {
        max-width: 100%;
        margin: 0 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .stat-item h3 {
        font-size: 2.5rem;
    }
    
    .feature-card,
    .step-card,
    .testimonial-card,
    .pricing-card {
        padding: 1.5rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .cta-content h2 {
        font-size: 1.8rem;
    }
    
    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary {
        width: 100%;
        max-width: 280px;
    }
    
    .cta-buttons .btn-primary,
    .cta-buttons .btn-secondary {
        width: 100%;
        max-width: 280px;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .whatsapp-demo {
        animation: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn-primary {
        border: 2px solid currentColor;
    }
    
    .btn-secondary {
        background: white;
    }
    
    .feature-icon,
    .step-number {
        border: 2px solid white;
    }
}

/* Print styles */
@media print {
    .header,
    .mobile-menu-toggle,
    .nav-buttons,
    .hero-buttons,
    .cta-buttons {
        display: none;
    }
    
    .hero {
        background: white;
        color: black;
        padding: 2rem 0;
    }
    
    .whatsapp-demo {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}