/* Fade-in et slide pour header */
.header-fade-in {
    opacity: 0;
    transform: translateY(-20px);
    animation: headerFadeIn 0.8s forwards;
}

@keyframes headerFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Icons header : fade-in cascade */
.header-icon {
    opacity: 0;
    transform: translateY(-10px);
    animation: iconFadeIn 0.6s forwards;
    animation-delay: var(--delay);
}

@keyframes iconFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Main content fade-in */
.main-fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: mainFadeIn 0.8s forwards;
    animation-delay: 0.6s;
    /* commence après header */
}

@keyframes mainFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Nav item hover effect */
.nav-item {
    transition: color 0.3s ease, transform 0.2s ease;
}

.nav-item:hover {
    color: #8a99d2;
    transform: translateY(-3px);
}