/* Header et Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 60px;
    transition: var(--transition);
    border: 2px solid var(--light-blue);
    border-radius: 50%;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-family: var(--font-main);
    font-size: 1.1rem;
    position: relative;
}

.nav-links .active {
    color: var(--blue);
    font-weight: bold;
}
.nav-links .active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--blue);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--blue);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--blue);
}

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

/* Styles pour le menu déroulant */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    border-radius: 5px;
    z-index: 100;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    /* transform: translateY(0); */
}

.dropdown-menu li {
    padding: 0;
    margin: 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.dropdown-menu li:last-child {
    border-bottom: none;
}

.dropdown-menu a {
    display: block;
    padding: 10px 15px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.dropdown-menu a.active {
    background-color: var(--blue);
    color: #fff;
}

.dropdown-menu a:hover {
    background-color: var(--blue);
    color: #fff
}

.dropdown > a .fa-chevron-down {
    font-size: 0.8rem;
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.dropdown:hover > a .fa-chevron-down {
    transform: rotate(180deg);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}