/* Additional Landing Page Animations */

/* Fade in animation for sections */
.animate-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

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

/* Staggered animation for feature cards */
.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }

/* Staggered animation for steps */
.step:nth-child(1) { animation-delay: 0.1s; }
.step:nth-child(2) { animation-delay: 0.2s; }
.step:nth-child(3) { animation-delay: 0.3s; }
.step:nth-child(4) { animation-delay: 0.4s; }

/* Navbar scroll effect */
.navbar-scrolled {
    background: rgba(255, 255, 255, 0.98) !important;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

/* WhatsApp button hover effects */
.btn-whatsapp-hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 35px rgba(37, 211, 102, 0.4);
}

/* Pricing card hover effects */
.pricing-card:hover .price {
    transform: scale(1.1);
    transition: transform 0.3s ease;
}

/* Knowledge card hover effects */
.knowledge-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(37, 211, 102, 0.2);
}

/* Search box focus effects */
#knowledgeSearch:focus {
    border-color: var(--whatsapp-green);
    box-shadow: 0 0 0 0.2rem rgba(37, 211, 102, 0.25);
}

/* Loading animation for search */
.search-loading {
    position: relative;
}

.search-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 15px;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--whatsapp-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    transform: translateY(-50%);
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .feature-card {
        margin-bottom: 30px;
    }
    
    .pricing-card.featured {
        transform: none;
        margin-bottom: 30px;
    }
    
    .mock-chat {
        max-width: 280px;
    }
}

/* Tablet optimizations */
@media (max-width: 992px) and (min-width: 769px) {
    .hero-section {
        padding: 80px 0;
    }
    
    .display-4 {
        font-size: 3rem;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .navbar-brand img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Print styles */
@media print {
    .navbar,
    .btn,
    .mock-chat {
        display: none !important;
    }
    
    .hero-section {
        padding: 20px 0;
    }
    
    .main-content {
        padding-top: 0;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .feature-card,
    .pricing-card,
    .knowledge-card {
        border: 2px solid #000;
    }
    
    .btn-whatsapp {
        border: 2px solid #000;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .landing-page {
        background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
        color: #ffffff;
    }
    
    .navbar {
        background: rgba(26, 26, 26, 0.95) !important;
    }
    
    .feature-card,
    .pricing-card,
    .knowledge-card {
        background: #2d2d2d;
        color: #ffffff;
    }
    
    .hero-section {
        background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    }
}

/* Focus indicators for accessibility */
.btn:focus,
.form-control:focus,
.nav-link:focus {
    outline: 2px solid var(--whatsapp-green);
    outline-offset: 2px;
}

/* Skip to content link for screen readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--whatsapp-green);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}