/* ========================================
   BOOST DE PERFORMANCE & OPTIMISATIONS
   ======================================== */

/* Critical CSS - Styles critiques pour le premier rendu */
:root {
    /* Variables essentielles */
    --primary-color: #6366f1;
    --text-primary: #f8fafc;
    --background-primary: #0a0a15;
}

/* Reset minimal pour performance */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* Optimisation du rendu initial */
html {
    font-display: swap;
    text-rendering: optimizeSpeed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    font-family: 'Poppins', system-ui, -apple-system, sans-serif;
    background: var(--background-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Optimisation des images */
img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
    border-style: none;
}

/* Optimisation des liens */
a {
    background-color: transparent;
    text-decoration: none;
    color: inherit;
}

/* Optimisation des boutons */
button {
    font-family: inherit;
    font-size: 100%;
    line-height: 1.15;
    margin: 0;
    overflow: visible;
    text-transform: none;
    border: none;
    background: none;
    cursor: pointer;
}

/* Optimisation des formulaires */
input,
textarea,
select {
    font-family: inherit;
    font-size: 100%;
    line-height: 1.15;
    margin: 0;
    border: none;
    outline: none;
}

/* Préchargement critique du header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 21, 0.95);
    backdrop-filter: blur(20px);
    transform: translateZ(0); /* Force GPU acceleration */
}

/* Préchargement critique du hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    transform: translateZ(0); /* Force GPU acceleration */
}

/* Optimisation des animations */
@media (prefers-reduced-motion: no-preference) {
    .hero-logo {
        animation: fadeInUp 1s ease-out;
    }
    
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

/* Optimisation du scroll */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

/* Optimisation des transitions */
* {
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Cache des éléments non critiques pendant le chargement */
.non-critical {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.loaded .non-critical {
    opacity: 1;
}

/* Optimisation des grilles */
.services-grid,
.portfolio-grid {
    display: grid;
    gap: 30px;
    contain: layout style;
}

/* Optimisation des cards */
.service-card,
.portfolio-item {
    contain: layout style paint;
    will-change: transform;
}

/* Optimisation du footer */
footer {
    contain: layout style;
}

/* Optimisation des médias queries */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding-top: 100px;
    }
    
    .hero-logo {
        font-size: clamp(2rem, 8vw, 3rem);
    }
}

/* Optimisation pour les écrans haute densité */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo-img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Optimisation pour le mode sombre */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
    }
}

/* Optimisation pour l'impression */
@media print {
    * {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    header,
    footer,
    .cta-buttons {
        display: none !important;
    }
    
    .hero,
    section {
        page-break-inside: avoid;
    }
    
    a,
    a:visited {
        text-decoration: underline;
    }
    
    a[href]:after {
        content: " (" attr(href) ")";
    }
}

/* Optimisation des polices */
@font-face {
    font-family: 'Poppins';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: local('Poppins Regular'), local('Poppins-Regular');
}

@font-face {
    font-family: 'Poppins';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: local('Poppins SemiBold'), local('Poppins-SemiBold');
}

@font-face {
    font-family: 'Poppins';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: local('Poppins Bold'), local('Poppins-Bold');
}

/* Optimisation des icônes */
.fa,
.fas,
.far,
.fal,
.fab {
    font-display: block;
}

/* Optimisation du lazy loading */
.lazy {
    opacity: 0;
    transition: opacity 0.3s;
}

.lazy.loaded {
    opacity: 1;
}

/* Optimisation des interactions */
@media (hover: hover) {
    .service-card:hover,
    .portfolio-item:hover,
    .btn:hover {
        transform: translateY(-2px);
    }
}

/* Optimisation pour les appareils tactiles */
@media (hover: none) {
    .service-card:active,
    .portfolio-item:active,
    .btn:active {
        transform: scale(0.98);
    }
}

/* Optimisation de la bande passante */
@media (max-width: 480px) {
    .hero-logo {
        background: #6366f1;
        background-clip: text;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        color: white;
    }
}

/* Optimisation des ressources critiques */
.critical-resource {
    font-display: block;
}

/* Optimisation du rendu */
.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* Optimisation des conteneurs */
.container {
    contain: layout style;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Optimisation finale */
.optimized {
    contain: strict;
    content-visibility: auto;
    contain-intrinsic-size: 300px;
}