/* ==========================================================================
   ESTILOS MODERNOS PARA MENU LATERAL
   Arquivo: modern-menu.css
   Descrição: Estilos elegantes com gradientes e animações para o menu lateral
   ========================================================================== */

/* Variáveis CSS para cores modernas */
:root {
    --menu-gradient-start: #4f46e5;
    --menu-gradient-middle: #7c3aed;
    --menu-gradient-end: #ec4899;
    --menu-hover-bg: rgba(255, 255, 255, 0.1);
    --menu-active-bg: rgba(255, 255, 255, 0.2);
    --menu-text-color: #ffffff;
    --menu-text-muted: rgba(255, 255, 255, 0.8);
    --menu-divider-color: rgba(255, 255, 255, 0.2);
    --menu-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Estilo principal do sidebar com gradiente moderno */
.sidebar.grupoportal,
.navbar-nav.sidebar.sidebar-dark.accordion.grupoportal {
    background: linear-gradient(180deg, var(--menu-gradient-start) 0%, var(--menu-gradient-middle) 50%, var(--menu-gradient-end) 100%) !important;
    box-shadow: var(--menu-shadow);
    border-right: none;
    transition: var(--transition-smooth);
}

/* Logo/Brand com animação sutil */
.sidebar .sidebar-brand {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--menu-divider-color);
    transition: var(--transition-smooth);
    padding: 1.5rem 1rem;
}

.sidebar .sidebar-brand:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.sidebar .sidebar-brand img {
    transition: var(--transition-smooth);
    filter: brightness(1.1);
}

.sidebar .sidebar-brand:hover img {
    transform: scale(1.05);
    filter: brightness(1.2);
}

/* Divisores com estilo moderno */
.sidebar hr.sidebar-divider {
    border-color: var(--menu-divider-color) !important;
    margin: 1rem 0;
    opacity: 0.6;
}

/* Cabeçalhos de seção */
.sidebar .sidebar-heading {
    color: var(--menu-text-muted) !important;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0.5rem;
    padding: 0 1rem;
    position: relative;
}

.sidebar .sidebar-heading::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 1rem;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, var(--menu-gradient-middle), var(--menu-gradient-end));
    border-radius: 1px;
}

/* Itens de navegação */
.sidebar .nav-item {
    margin-bottom: 0.25rem;
}

.sidebar .nav-item .nav-link,
.navbar-nav.sidebar .nav-item .nav-link {
    color: var(--menu-text-color) !important;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    margin-top: 4px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    font-weight: 500;
}

/* Efeito de hover nos links */
.sidebar .nav-item .nav-link:hover,
.navbar-nav.sidebar .nav-item .nav-link:hover {
    background: var(--menu-hover-bg) !important;
    transform: translateX(5px);
    color: #ffffff !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Estado ativo dos links */
.sidebar .nav-item.active .nav-link,
.navbar-nav.sidebar .nav-item.active .nav-link {
    background: var(--menu-active-bg) !important;
    color: #ffffff !important;
    font-weight: 600;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
    border-left: 3px solid #ffffff;
}

/* Ícones dos links */
.sidebar .nav-item .nav-link i {
    color: var(--menu-text-color) !important;
    margin-right: 0.75rem;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
    width: 20px;
    text-align: center;
}

.sidebar .nav-item .nav-link:hover i {
    transform: scale(1.1);
    color: #ffffff !important;
}

.sidebar .nav-item.active .nav-link i {
    color: #ffffff !important;
    transform: scale(1.05);
}

/* Animação para links colapsáveis */
.sidebar .nav-item .nav-link[data-toggle="collapse"]::after {
    color: var(--menu-text-color) !important;
    transition: var(--transition-smooth);
}

.sidebar .nav-item .nav-link[data-toggle="collapse"]:hover::after {
    color: #ffffff !important;
    transform: rotate(180deg);
}

/* Submenus colapsáveis */
.sidebar .collapse-inner {
    background: rgba(255, 255, 255, 0.95) !important;
    border-radius: 0.5rem;
    margin: 0.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.sidebar .collapse-item {
    color: var(--menu-gradient-start) !important;
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    margin: 0.25rem;
    transition: var(--transition-smooth);
    font-weight: 500;
}

.sidebar .collapse-item:hover {
    background: linear-gradient(135deg, var(--menu-gradient-start), var(--menu-gradient-middle)) !important;
    color: #ffffff !important;
    transform: translateX(3px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

/* Botão de toggle do sidebar */
.sidebar #sidebarToggle {
    background: rgba(255, 255, 255, 0.1) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    color: var(--menu-text-color) !important;
    transition: var(--transition-smooth);
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
}

.sidebar #sidebarToggle:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Animações de entrada */
@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.sidebar .nav-item {
    animation: slideInLeft 0.3s ease-out;
    animation-fill-mode: both;
}

/* Delay escalonado para animação dos itens */
.sidebar .nav-item:nth-child(1) { animation-delay: 0.1s; }
.sidebar .nav-item:nth-child(2) { animation-delay: 0.15s; }
.sidebar .nav-item:nth-child(3) { animation-delay: 0.2s; }
.sidebar .nav-item:nth-child(4) { animation-delay: 0.25s; }
.sidebar .nav-item:nth-child(5) { animation-delay: 0.3s; }
.sidebar .nav-item:nth-child(6) { animation-delay: 0.35s; }
.sidebar .nav-item:nth-child(7) { animation-delay: 0.4s; }
.sidebar .nav-item:nth-child(8) { animation-delay: 0.45s; }

/* Responsividade */
@media (max-width: 768px) {
    .sidebar.grupoportal {
        background: linear-gradient(135deg, var(--menu-gradient-start) 0%, var(--menu-gradient-middle) 50%, var(--menu-gradient-end) 100%) !important;
    }
    
    .sidebar .nav-item .nav-link {
        padding: 0.5rem 0.75rem;
        margin: 0 0.25rem;
    }
    
    .sidebar .sidebar-brand {
        padding: 1rem 0.75rem;
    }
}

/* Efeito de pulsação sutil para itens ativos */
@keyframes subtlePulse {
    0%, 100% {
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
    }
    50% {
        box-shadow: 0 2px 16px rgba(255, 255, 255, 0.1);
    }
}

.sidebar .nav-item.active .nav-link {
    animation: subtlePulse 3s ease-in-out infinite;
}

/* Melhorias para acessibilidade */
.sidebar .nav-item .nav-link:focus {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

/* Efeito de ondulação ao clicar */
.sidebar .nav-item .nav-link {
    position: relative;
    overflow: hidden;
}

.sidebar .nav-item .nav-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease;
}

.sidebar .nav-item .nav-link:active::before {
    width: 200px;
    height: 200px;
}