/**
 * Performance Optimization Styles
 * Dra. Mary Rosario - Barcelona Landing Page
 */

/* Lazy Loading States */
.lazy {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lazy.loaded {
    opacity: 1;
}

.lazy-bg {
    background-image: none !important;
    background-color: var(--secondary-light);
    transition: background-image 0.3s ease;
}

.lazy-bg.loaded-bg {
    background-color: transparent;
}

/* Loading Placeholder */
.image-placeholder {
    background: linear-gradient(90deg, var(--secondary-light) 25%, var(--secondary-color) 50%, var(--secondary-light) 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Critical CSS - Above the fold optimizations */
.hero {
    /* Ensure hero section renders immediately */
    contain: layout style paint;
}

.hero-content {
    /* Optimize hero content rendering */
    will-change: transform;
}

/* Performance optimizations for animations */
.fade-in,
.slide-up,
.scale-in {
    /* Use transform and opacity for better performance */
    will-change: transform, opacity;
    transform: translateZ(0); /* Force hardware acceleration */
}

/* Optimize service cards for better rendering */
.service-card {
    contain: layout style paint;
    transform: translateZ(0);
}

.service-card:hover {
    /* Use transform instead of changing other properties */
    will-change: transform;
}

/* Map container optimization */
.map-wrapper {
    contain: layout;
}

.map-wrapper iframe {
    /* Optimize iframe rendering */
    transform: translateZ(0);
}

/* Font loading optimization */
@font-face {
    font-family: 'Cormorant Garamond';
    font-display: swap; /* Ensure text remains visible during font load */
}

@font-face {
    font-family: 'Montserrat';
    font-display: swap;
}

/* Reduce layout shifts */
.logo-image {
    /* Prevent layout shift by setting dimensions */
    width: auto;
    height: 60px;
    max-width: 200px;
}

.service-image {
    /* Prevent layout shift in service cards */
    aspect-ratio: 16/9;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Optimize testimonial section */
.testimonial-slider {
    contain: layout;
}

/* Critical path CSS - inline these styles */
.critical-above-fold {
    /* Styles for content above the fold */
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Defer non-critical animations */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Performance optimizations for mobile */
@media (max-width: 768px) {
    /* Reduce complexity on mobile */
    .parallax-bg {
        background-attachment: scroll; /* Better performance on mobile */
    }
    
    /* Optimize mobile animations */
    .service-card:hover {
        transform: none; /* Disable hover effects on mobile */
    }
    
    /* Optimize mobile images */
    .service-image img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Optimize for high DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo-image {
        /* Use high-res logo for retina displays */
        image-rendering: -webkit-optimize-contrast;
    }
}

/* Container queries for better performance (if supported) */
@supports (container-type: inline-size) {
    .service-card {
        container-type: inline-size;
    }
}

/* Optimize focus states for accessibility and performance */
.btn:focus,
.service-link:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    /* Use outline instead of box-shadow for better performance */
}

/* Optimize sticky elements */
.sticky-cta-mobile {
    contain: layout style paint;
    will-change: transform;
    transform: translateZ(0);
}

/* Resource hints for better loading */
.preload-hint {
    /* Class to mark elements that should be preloaded */
    content-visibility: auto;
    contain-intrinsic-size: 300px;
}

/* Optimize FAQ accordion */
.faq-accordion {
    contain: layout;
}

.faq-item {
    contain: layout style;
}

/* Performance-optimized grid layouts */
.services-grid {
    /* Use subgrid if supported for better performance */
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    contain: layout;
}

/* Optimize location section */
.location-content {
    contain: layout;
}

/* Critical resource loading states */
.font-loading {
    /* Fallback font while custom fonts load */
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.font-loaded {
    /* Custom fonts loaded */
    font-family: var(--body-font);
}

/* Optimize background patterns */
.pattern-overlay {
    /* Use CSS patterns instead of images where possible */
    background-image: 
        radial-gradient(circle at 1px 1px, rgba(102, 66, 40, 0.1) 1px, transparent 0);
    background-size: 20px 20px;
}

/* Performance monitoring styles */
.perf-marker {
    /* Hidden elements for performance measurement */
    position: absolute;
    visibility: hidden;
    pointer-events: none;
}

/* Optimize print styles for better performance */
@media print {
    .hero,
    .testimonials,
    .faq-section {
        break-inside: avoid;
    }
    
    .service-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}