/* backend/static/css/nav.css */
/* Versão: 2.5.0 - High Contrast & Touch Target Fix (DNA Edition) */

/* ==========================================================================
   1. BANNERS GLOBAIS
   ========================================================================== */
.promo-banner {
    background: linear-gradient(90deg, var(--color-primary-bs), #0d4db8);
    color: var(--color-text-white);
    padding: 12px 0; /* Aumentado para facilitar leitura */
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    position: relative;
    z-index: 1040;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.promo-banner a {
    color: #ffffff; /* Branco puro para contraste máximo */
    text-decoration: underline;
    text-underline-offset: 2px;
    margin-left: 10px;
    font-weight: 800;
}

.promo-countdown {
    display: inline-block;
    background: rgba(0, 0, 0, 0.3); /* Mais escuro para contraste */
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 8px;
    font-family: var(--font-family-sans-serif);
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

/* ==========================================================================
   2. NAVEGAÇÃO (Navbar Principal - Grid System)
   ========================================================================== */
.navbar {
    padding: 0.8rem 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-dna-sm);
    width: 100%;
    z-index: 1030;
    border-bottom: 1px solid var(--border-color-default);
    transition: var(--transition-normal);
}

/* Blindagem via Grid: Slot Central (1fr) é o único elástico */
.navbar .container-fluid {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1.5rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* Estabilização Mobile */
@media (max-width: 767.98px) {
    .navbar .container-fluid {
        display: flex;
        justify-content: space-between;
    }

    .navbar-collapse {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        padding: 1.5rem;
        box-shadow: var(--shadow-dna-lg);
        border-bottom: 1px solid var(--border-color-default);
        flex-direction: column;
    }
    
    .navbar-collapse.show {
        display: flex !important;
    }
    
    .navbar-nav {
        flex-direction: column !important;
        align-items: flex-start !important;
        width: 100%;
        gap: 0.5rem;
        list-style: none !important;
        padding-left: 0;
    }
    
    .mega-menu {
        display: none !important;
    }
}

@media (min-width: 768px) {
    .navbar-toggler {
        display: none !important;
    }
    .navbar-collapse {
        display: flex !important;
        justify-content: center;
    }
    .navbar-nav {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 0.25rem;
        list-style: none !important;
        padding-left: 0;
        margin-bottom: 0;
    }
}

.navbar-brand img {
    height: 32px;
    width: auto;
    transition: var(--transition-fast);
}

.nav-link {
    padding: 0.75rem 1rem; /* Aumentado para Touch Target (min 44px height) */
    color: var(--color-text-default);
    font-weight: 600;
    font-size: 0.95rem; /* Levemente maior para legibilidade */
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary-bs);
    background-color: var(--color-bg-light);
}

/* ==========================================================================
   3. MEGA MENU PREMIUM
   ========================================================================== */
.has-mega-menu {
    position: static !important;
}

.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    width: 100%;
    max-width: 1000px;
    background: #ffffff;
    border: 1px solid var(--border-color-default);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-dna-xl);
    padding: 2.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    z-index: 1000;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.nav-item.has-mega-menu:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.menu-col h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--color-text-headings); /* Contraste fixado */
    letter-spacing: 0.05em;
    margin-bottom: 1.2rem;
    font-weight: 800;
    border-bottom: 1px solid var(--border-color-light);
    padding-bottom: 0.6rem;
}

.menu-col a {
    display: block;
    padding: 0.75rem 0.8rem; /* Touch friendly */
    margin: 0 -0.8rem;
    color: var(--color-text-default);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 6px;
    transition: var(--transition-fast);
    text-decoration: none;
}

.menu-col a:hover {
    background-color: var(--color-bg-light);
    color: var(--color-primary-bs);
    transform: translateX(4px);
}

/* ==========================================================================
   4. AÇÕES DA NAVBAR (Blindagem e Polimento)
   ========================================================================== */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.25rem; 
    flex-shrink: 0;
}

/* FIX CONTRASTE: Botão de busca escurecido para passar WCAG AA */
.btn-search-trigger {
    background: #f8fafc;
    border: 1px solid #cbd5e1;
    padding: 8px 14px; /* Mais área de clique */
    border-radius: 8px;
    color: var(--color-text-headings); /* Escuro (#0f172a) */
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition-fast);
}

.btn-search-trigger:hover {
    border-color: var(--color-primary-bs);
    color: var(--color-primary-bs);
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.kbd {
    background: white;
    border: 1px solid #94a3b8; /* Borda mais escura */
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-text-default); /* Texto escuro */
    margin-left: 4px;
}

.btn-login {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--color-text-default);
    text-decoration: none;
    padding: 0.75rem; /* Touch friendly */
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-login:hover {
    color: var(--color-primary-bs);
}

.btn-btos-primary.small {
    white-space: nowrap; 
}

/* ==========================================================================
   5. SISTEMA DE DROPDOWNS (Glassmorphism & Logout)
   ========================================================================== */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    z-index: 1000;
    display: none;
    min-width: 240px;
    padding: 0.6rem;
    margin-top: 0.75rem;
    list-style: none;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color-default);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-dna-lg);
    animation: dropdownFade 0.2s ease-out;
}

@keyframes dropdownFade {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.dropdown-menu.show {
    display: block;
}

.dropdown-item {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem; /* Touch friendly */
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text-default);
    text-decoration: none;
    transition: var(--transition-fast);
    border-radius: var(--border-radius-md);
    white-space: nowrap;
}

.dropdown-item:hover {
    background-color: var(--color-bg-light);
    color: var(--color-primary-bs);
}

/* Estilo Especial de Logout (Segurança e UX) */
.dropdown-item-logout {
    color: var(--color-danger-bs) !important;
    border-top: 1px solid var(--border-color-light);
    margin-top: 0.4rem;
    padding-top: 0.8rem;
}

.dropdown-item-logout:hover {
    background-color: #fff1f2 !important; 
    color: #be123c !important;
}

.dropdown-header {
    display: block;
    padding: 0.5rem 1rem;
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   6. INJEÇÃO DE UTILITÁRIOS (Bootstrap Shadow-Classes)
   ========================================================================== */

@media (min-width: 576px) {
    .d-sm-inline-flex { display: inline-flex !important; }
}

@media (min-width: 768px) {
    .d-md-inline { display: inline !important; }
}

@media (min-width: 992px) {
    .d-lg-flex { display: flex !important; }
}

@media (max-width: 575.98px) {
    .nav-actions {
        gap: 0.75rem;
    }
    .btn-login span {
        display: none;
    }
}