/* ==================== AMÉLIORATIONS STYLE ==================== */

/* Améliorations de performance et UX */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-display: swap;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Loading screen amélioré */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--first-color), var(--first-color-alt));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.5s ease-out;
}

.loading-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Améliorations tooltips */
[data-tooltip] {
    position: relative;
}

[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--title-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.8rem;
    white-space: nowrap;
    z-index: 1000;
    opacity: 0;
    animation: tooltipFadeIn 0.3s ease-out forwards;
}

@keyframes tooltipFadeIn {
    from { opacity: 0; transform: translateX(-50%) translateY(5px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Améliorations navigation */
.nav__link {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav__link:hover {
    transform: translateY(-2px);
}

/* Améliorations boutons */
.button {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.button:hover::before {
    left: 100%;
}

/* Scroll indicators */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--first-color), var(--first-color-alt));
    z-index: 1000;
    transition: width 0.25s ease-out;
}

/* Améliorations cartes portfolio */
.portfolio__card {
    transform-style: preserve-3d;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.portfolio__card:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

/* Parallax amélioré */
.parallax-element {
    will-change: transform;
    transition: transform 0.1s ease-out;
}

/* Gestion du focus pour l'accessibilité */
.focus-visible {
    outline: 2px solid var(--first-color);
    outline-offset: 2px;
}

/* Améliorations responsive avancées */
@container main-container (max-width: 768px) {
    .home__buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .home__stats {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Optimisations performances */
.home__blob-img,
.about__img {
    will-change: transform;
}

/* Animation d'apparition progressive */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Skeleton loading pour images */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

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

/* Error states */
.error-message {
    background: #fee;
    border: 1px solid #fcc;
    color: #c44;
    padding: 1rem;
    border-radius: 0.5rem;
    margin: 1rem 0;
}

/* Success states */
.success-message {
    background: #efe;
    border: 1px solid #cfc;
    color: #4c4;
    padding: 1rem;
    border-radius: 0.5rem;
    margin: 1rem 0;
}