/**
 * Feuille de Style : Menu de Navigation Hamburger (Responsive)
 * Emplacement: /home/automate/Stellaprima_v2/CSS/menu.css
 * Version: 1.0
 * Rôle : Gestion du menu hamburger pour affichage smartphone et fenêtre réduite.
 */
 /* Bouton hamburger — masqué sur PC */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.hamburger:hover {
    background-color: #f1f5f9;
}

/* Les 3 traits */
.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--dark-color);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform-origin: center;
}

/* Animation croix à l'ouverture */
.hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Menu mobile */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #ffffff;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        z-index: 99;
    }

    nav.open {
        display: block;
    }

    nav ul {
        flex-direction: column;
        gap: 0;
        padding: 0.5rem 0;
    }

    nav ul li a {
        display: block;
        padding: 0.85rem 2rem;
        font-size: 1rem;
        border-bottom: 1px solid #f1f5f9;
        color: var(--dark-color);
        transition: background-color 0.2s, color 0.2s;
    }

    nav ul li:last-child a {
        border-bottom: none;
    }

    nav ul li a:hover {
        background-color: #f8fafc;
        color: var(--primary-color);
    }
}