/* Styles personnalisés Yris3D - Thème clair */

/* Variables de couleur */
:root {
    --color-primary: #1f2937;
    --color-secondary: #4b5563;
    --color-accent: #3b82f6;
    --color-bg: #ffffff;
    --color-bg-alt: #f9fafb;
    --color-text: #111827;
    --color-text-light: #6b7280;
    --glass-bg: rgba(0, 0, 0, 0.02);
    --glass-border: rgba(0, 0, 0, 0.05);
}

/* Reset et base */
* {
    scroll-padding-top: 5rem;
}

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

.animate-fade-in {
    animation: fadeInUp 0.8s ease-out forwards;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Bouton back to top - thème clair */
#backToTop {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 0, 0, 0.1);
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 100;
}

#backToTop.show {
    opacity: 1;
    visibility: visible;
}

#backToTop:hover {
    background: rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

/* Style pour les images portfolio */
.portfolio-item {
    position: relative;
    overflow: hidden;
}

.portfolio-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.8) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-item:hover::before {
    opacity: 1;
}

/* Loader pour les images */
img {
    transition: opacity 0.3s ease;
}

img[data-src] {
    opacity: 0;
}

img.loaded {
    opacity: 1;
}

/* Optimisation des performances - préchargement */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}