/* Variables personnalisées */
:root {
    --bs-primary: #4f46e5;
    --bs-primary-rgb: 79, 70, 229;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Styles généraux */
body {
    overflow-x: hidden;
}

/* Navigation */
.navbar {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.nav-link {
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--bs-primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Cards */
.hover-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 1rem 3rem rgba(0,0,0,.175)!important;
}

/* Boutons */
.btn {
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--bs-primary);
    border-color: var(--bs-primary);
}

.btn-primary:hover {
    background-color: #4338ca;
    border-color: #4338ca;
}

.btn-outline-primary {
    color: var(--bs-primary);
    border-color: var(--bs-primary);
}

.btn-outline-primary:hover {
    background-color: var(--bs-primary);
    border-color: var(--bs-primary);
}

/* Footer */
.hover-light {
    transition: color 0.3s ease;
}

.hover-light:hover {
    color: #fff !important;
}

/* Icons */
.bi {
    transition: transform 0.3s ease;
}

a:hover .bi {
    transform: scale(1.1);
}

/* Responsive */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2.5rem;
    }
    
    .display-6 {
        font-size: 1.75rem;
    }
}