/* ========================================
   MODERN SIDEBAR STYLES
   ======================================== */

/* Sidebar Principal com Gradiente Moderno - Tons Equilibrados */
.main-sidebar {
    background: linear-gradient(180deg, #1a252f 0%, #253142 25%, #34495e 50%, #253142 75%, #1a252f 100%) !important;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.2) !important;
}

    /* Brand/Logo */
    .main-sidebar .brand-link {
        background: rgba(255, 255, 255, 0.08) !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        transition: all 0.3s ease;
    }

        .main-sidebar .brand-link:hover {
            background: rgba(255, 255, 255, 0.12) !important;
        }

    .main-sidebar .brand-text {
        color: #fff !important;
        font-weight: 600 !important;
        font-size: 1.1rem;
        letter-spacing: 0.5px;
    }

    /* Navegação */
    .main-sidebar .sidebar {
        padding-top: 0.5rem;
    }

    /* Items do Menu */
    .main-sidebar .nav-link {
        color: rgba(255, 255, 255, 0.8) !important;
        border-radius: 8px;
        margin: 4px 8px;
        padding: 12px 16px;
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
    }

        .main-sidebar .nav-link::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 3px;
            background: #4facfe;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .main-sidebar .nav-link:hover {
            background: rgba(255, 255, 255, 0.1) !important;
            color: #fff !important;
        }

            .main-sidebar .nav-link:hover::before {
                opacity: 1;
            }

        /* Link Ativo */
        .main-sidebar .nav-link.active {
            background: rgba(255, 255, 255, 0.15) !important;
            color: #fff !important;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }

            .main-sidebar .nav-link.active::before {
                opacity: 1;
            }

    /* Ícones - Estilo Simples */
    .main-sidebar .nav-icon {
        margin-right: 12px;
        font-size: 1rem;
        color: rgba(255, 255, 255, 0.8);
        transition: color 0.3s ease;
    }

    .main-sidebar .nav-link:hover .nav-icon,
    .main-sidebar .nav-link.active .nav-icon {
        color: #fff;
    }

    /* TreeView (Menu com submenu) */
    .main-sidebar .has-treeview > .nav-link > p > .right {
        transition: transform 0.3s ease;
    }

    .main-sidebar .has-treeview.menu-open > .nav-link > p > .right {
        transform: rotate(-90deg);
    }

    /* Submenu */
    .main-sidebar .nav-treeview {
        background: rgba(0, 0, 0, 0.1);
        border-radius: 8px;
        margin: 4px 8px;
        padding: 8px 0;
    }

        .main-sidebar .nav-treeview .nav-link {
            margin: 2px 8px;
            padding: 10px 12px;
            font-size: 0.9rem;
        }

        .main-sidebar .nav-treeview .nav-icon {
            font-size: 0.9rem;
        }

    /* Texto do Menu */
    .main-sidebar .nav-link p {
        display: inline-flex;
        align-items: center;
        margin: 0;
        font-size: 0.95rem;
        letter-spacing: 0.3px;
    }

    /* Scrollbar Customizada */
    .main-sidebar .sidebar::-webkit-scrollbar {
        width: 6px;
    }

    .main-sidebar .sidebar::-webkit-scrollbar-track {
        background: rgba(255, 255, 255, 0.05);
        border-radius: 10px;
    }

    .main-sidebar .sidebar::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.2);
        border-radius: 10px;
    }

        .main-sidebar .sidebar::-webkit-scrollbar-thumb:hover {
            background: rgba(255, 255, 255, 0.3);
        }

/* Responsivo */
@media (max-width: 991.98px) {
    .main-sidebar {
        box-shadow: none !important;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .main-sidebar {
        background: linear-gradient(180deg, #0f1823 0%, #1a2a3a 25%, #2c3e50 50%, #1a2a3a 75%, #0f1823 100%) !important;
    }
}