/* Styles simples et élégants pour les menus multi-niveaux */

/* Variables CSS pour la cohérence */
:root {
    --menu-primary: #333;
    --menu-secondary: #666;
    --menu-accent: #007bff;
    --menu-hover: #f8f9fa;
    --menu-text: #333;
    --menu-text-light: #666;
    --menu-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --menu-border-radius: 6px;
    --menu-transition: all 0.2s ease;
}

/* Menu principal - Style simple */
.navbar-nav {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: var(--menu-border-radius);
    box-shadow: var(--menu-shadow);
    padding: 0.5rem;
}

.navbar-nav .nav-link {
    color: var(--menu-text) !important;
    font-weight: 500;
    padding: 0.75rem 1rem !important;
    border-radius: var(--menu-border-radius);
    transition: var(--menu-transition);
    margin: 0 0.25rem;
}

.navbar-nav .nav-link:hover {
    background: var(--menu-hover);
    color: var(--menu-accent) !important;
}

/* Dropdown menus - Style simple */
.dropdown-menu {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: var(--menu-border-radius);
    box-shadow: var(--menu-shadow);
    padding: 0.5rem 0;
    margin-top: 0.25rem;
    min-width: 200px;
}

/* Items de menu - Style simple */
.dropdown-item {
    padding: 0.5rem 1rem;
    color: var(--menu-text);
    font-weight: 400;
    transition: var(--menu-transition);
    border-radius: var(--menu-border-radius);
    margin: 0.125rem 0.5rem;
}

.dropdown-item:hover {
    background: var(--menu-hover);
    color: var(--menu-accent);
}

/* Sous-menus - Style simple */
.dropdown-submenu {
    position: relative;
}

.dropdown-submenu .dropdown-menu {
    top: -0.25rem;
    left: 100%;
    margin-left: 0.25rem;
    border-radius: var(--menu-border-radius);
    box-shadow: var(--menu-shadow);
}

/* Indicateur de sous-menu - Style simple */
.dropdown-submenu > a::after {
    content: '';
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 4px solid var(--menu-text-light);
    border-top: 3px solid transparent;
    border-bottom: 3px solid transparent;
    transition: var(--menu-transition);
}

.dropdown-submenu:hover > a::after {
    border-left-color: var(--menu-accent);
}

/* Niveaux de profondeur - Couleurs simples */
.dropdown-menu .dropdown-menu {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
}

.dropdown-menu .dropdown-menu .dropdown-menu {
    background: #f1f3f4;
    border: 1px solid #e9ecef;
}

/* Espacement pour les niveaux */
.dropdown-submenu .dropdown-item {
    padding-left: 1.5rem;
    position: relative;
}

.dropdown-submenu .dropdown-item::before {
    content: '';
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    background: var(--menu-accent);
    border-radius: 50%;
    opacity: 0.6;
}

.dropdown-submenu .dropdown-submenu .dropdown-item {
    padding-left: 2.5rem;
}

.dropdown-submenu .dropdown-submenu .dropdown-item::before {
    left: 1.75rem;
    background: var(--menu-secondary);
}

/* Effets de survol simples */
.dropdown-submenu:hover > a {
    background: var(--menu-hover);
    color: var(--menu-accent) !important;
}

/* Icônes - Style simple */
.dropdown-submenu .fas.fa-chevron-right {
    font-size: 0.8em;
    margin-left: 0.5rem;
    opacity: 0.7;
    transition: var(--menu-transition);
}

.dropdown-submenu:hover .fas.fa-chevron-right {
    opacity: 1;
}

/* Responsive design simple */
@media (max-width: 991.98px) {
    .navbar-nav {
        background: white;
        border: none;
        border-radius: 0;
        box-shadow: none;
        padding: 0;
    }
    
    .navbar-nav .nav-link {
        color: var(--menu-text) !important;
        border-bottom: 1px solid #eee;
        margin: 0;
        border-radius: 0;
    }
    
    .navbar-nav .nav-link:hover {
        background: var(--menu-hover);
        transform: none;
        box-shadow: none;
    }
    
    .dropdown-submenu .dropdown-menu {
        position: static;
        float: none;
        width: auto;
        margin: 0;
        background: #f8f9fa;
        border: none;
        box-shadow: none;
        border-radius: 0;
    }
    
    .dropdown-submenu > a::after {
        display: none;
    }
    
    .dropdown-submenu .dropdown-item {
        padding-left: 1.5rem;
        border-left: 2px solid var(--menu-accent);
        margin-left: 0.5rem;
    }
    
    .dropdown-submenu .dropdown-submenu .dropdown-item {
        padding-left: 2.5rem;
        border-left-color: var(--menu-secondary);
    }
}

/* Animation simple */
.dropdown-menu {
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Amélioration de l'accessibilité */
.dropdown-submenu:focus-within > .dropdown-menu {
    display: block;
}

/* Styles pour les menus très profonds */
.dropdown-menu .dropdown-menu .dropdown-menu {
    max-width: 250px;
    min-width: 180px;
}

.dropdown-menu .dropdown-menu .dropdown-menu .dropdown-item {
    white-space: normal;
    word-wrap: break-word;
    line-height: 1.4;
}