/* ========================================
   SISTEMA DE MENU DROPDOWN COM SUBMENUS
   ======================================== */

.nav-tabs {
    position: relative;
}

.nav-tabs-list {
    display: flex;
    gap: 0;
    align-items: center;
    flex-wrap: wrap;
}

/* Menu item com dropdown */
.nav-tab-dropdown {
    position: relative;
    display: inline-block;
}

/* Ícone indicador de dropdown */
.nav-tab.has-dropdown::after {
    content: '\f107'; /* FontAwesome caret-down */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    margin-left: 6px;
    font-size: 0.85em;
    transition: transform 0.3s ease;
}

.nav-tab.has-dropdown:hover::after {
    transform: rotate(180deg);
}

/* Container do submenu */
.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    min-width: 200px;
    max-width: 280px;
    width: max-content;
    padding: 6px 0;
    z-index: 9999;
    
    /* Animação de entrada */
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Backdrop blur para efeito moderno */
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.98);
}

/* Dark mode */
[data-theme="dark"] .nav-dropdown-menu {
    background: rgba(30, 30, 35, 0.95);
}

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

/* Submenu items */
.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    white-space: nowrap;
}

.nav-dropdown-item i {
    font-size: 1rem;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

.nav-dropdown-item:hover {
    background: var(--primary-light);
    border-left-color: var(--primary);
    padding-left: 20px;
}

/* Separador entre itens (opcional) */
.nav-dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: 8px 12px;
}

/* Badge de quantidade em dropdown */
.nav-dropdown-item .badge {
    margin-left: auto;
    background: var(--primary);
    color: white;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
}

/* Efeito de hover no menu pai quando dropdown está aberto */
.nav-tab-dropdown:hover > .nav-tab {
    background: var(--primary-light);
    color: var(--primary);
}

/* Responsivo para mobile */
@media (max-width: 768px) {
    .nav-dropdown-menu {
        position: static;
        width: 100%;
        margin-top: 8px;
        border-radius: 8px;
        max-height: 0;
        overflow: hidden;
        padding: 0;
        transition: all 0.3s ease, max-height 0.4s ease;
    }
    
    .nav-tab-dropdown:hover .nav-dropdown-menu,
    .nav-tab-dropdown.active .nav-dropdown-menu {
        max-height: 500px;
        padding: 8px 0;
    }
    
    .nav-tab.has-dropdown {
        width: 100%;
        justify-content: space-between;
    }
    
    /* Click para abrir em mobile */
    .nav-tab-dropdown {
        width: 100%;
    }
}

/* Animação de entrada dos itens do dropdown */
.nav-dropdown-menu .nav-dropdown-item {
    animation: slideIn 0.3s ease forwards;
    opacity: 0;
}

.nav-dropdown-menu .nav-dropdown-item:nth-child(1) { animation-delay: 0.05s; }
.nav-dropdown-menu .nav-dropdown-item:nth-child(2) { animation-delay: 0.1s; }
.nav-dropdown-menu .nav-dropdown-item:nth-child(3) { animation-delay: 0.15s; }
.nav-dropdown-menu .nav-dropdown-item:nth-child(4) { animation-delay: 0.2s; }
.nav-dropdown-menu .nav-dropdown-item:nth-child(5) { animation-delay: 0.25s; }

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Seta decorativa apontando para o menu pai */
.nav-dropdown-menu::before {
    content: '';
    position: absolute;
    top: -5px;
    left: 20px;
    width: 10px;
    height: 10px;
    background: var(--bg);
    border-left: 1px solid var(--border);
    border-top: 1px solid var(--border);
    transform: rotate(45deg);
}

[data-theme="dark"] .nav-dropdown-menu::before {
    background: rgba(30, 30, 35, 0.98);
}

/* Scroll suave para muitos itens */
.nav-dropdown-menu {
    max-height: 400px;
    overflow-y: auto;
}

.nav-dropdown-menu::-webkit-scrollbar {
    width: 6px;
}

.nav-dropdown-menu::-webkit-scrollbar-track {
    background: transparent;
}

.nav-dropdown-menu::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 10px;
}

.nav-dropdown-menu::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}