/* Copiado e adaptado de docs/layout/assets/css/sidebar-submenu.css para o tema BS5 local */

/* Submenu de primeiro nível */
.submenu { padding-left: 0; list-style: none; margin-bottom: 0; }
.submenu .nav-link { padding-left: 3rem; font-size: 0.9rem; position: relative; }
.submenu .nav-link::before { content: ''; position: absolute; left: 1.5rem; top: 50%; width: 6px; height: 6px; border-radius: 50%; background-color: var(--color-text-secondary); transform: translateY(-50%); opacity: 0.5; transition: var(--transition-base); }
.submenu .nav-link:hover::before, .submenu .nav-link.active::before { background-color: var(--color-primary); opacity: 1; transform: translateY(-50%) scale(1.3); }

/* Submenu de segundo nível */
.submenu-level-2 { padding-left: 0; list-style: none; margin-bottom: 0; }
.submenu-level-2 .nav-link { padding-left: 4rem; font-size: 0.85rem; position: relative; border-left: 2px solid transparent; margin-left: 2rem; }
.submenu-level-2 .nav-link::before { content: '└'; position: absolute; left: 0.75rem; top: 50%; transform: translateY(-50%); color: var(--color-text-secondary); opacity: 0.5; font-size: 1rem; }
.submenu-level-2 .nav-link:hover { border-left-color: var(--color-primary); }
.submenu-level-2 .nav-link.active { border-left-color: var(--color-primary); background-color: transparent; color: var(--color-primary); font-weight: 600; }

/* Chevron */
.chevron-icon { transition: transform 0.3s ease; font-size: 0.875rem; margin-left: auto; }
[aria-expanded="true"] .chevron-icon { transform: rotate(90deg); }

/* Estrutura */
.nav-item > .nav-link { display: flex; align-items: center; gap: 0.75rem; }
.nav-item .nav-link { position: relative; overflow: hidden; }
.nav-item .nav-link::after { content: ''; position: absolute; left: 0; top: 0; height: 100%; width: 3px; background-color: var(--color-primary); transform: scaleY(0); transition: transform 0.2s ease; }
.nav-item .nav-link:hover::after, .nav-item .nav-link.active::after { transform: scaleY(1); }

/* Divider e títulos */
.sidebar-divider { margin: 1rem 0; border-top: 1px solid var(--color-border); opacity: 0.5; }
.menu-group-label { padding: 1rem 1rem 0.5rem; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-secondary); opacity: 0.7; }

/* Mobile overrides */
@media (max-width: 768px){
  .sidebar { width: 280px !important; }
}

/* Estado colapsado (desktop) */
.sidebar.collapsed .nav-link span{
  opacity: 0; width: 0; overflow: hidden; white-space: nowrap;
}
.sidebar.collapsed .chevron-icon{ display: none; }
.sidebar.collapsed .submenu,
.sidebar.collapsed .submenu-level-2{ display: none !important; }
.sidebar.collapsed .nav-link{ justify-content: center; padding-left:.5rem; padding-right:.5rem; }