/* Sidebar - Tema verde/blanco de alto contraste */
:root {
  --sidebar-width: 250px;
  --sidebar-collapsed-width: 70px;
  --primary-color: #28a745; /* verde principal */
  --secondary-color: #1e7e34; /* verde oscuro */
  --accent-color: #28a745; /* para hovers/activos */
  --text-dark: #212529; /* texto */
  --text-muted: #6c757d;
  --separator: #e9ecef;
  --bg: #ffffff;
  --bg-hover: #eaf7ef;
  --bg-active: #d4edda;
  --transition-speed: 0.25s;
}

.mobile-toggle { display: none !important; }

.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100%; max-height: 100vh;
  background: var(--bg);
  color: var(--text-dark);
  border-right: 1px solid var(--separator);
  transition: width var(--transition-speed) ease;
  z-index: 1000;
  overflow-x: hidden;
  display: flex; flex-direction: column;
}

/* Mantener siempre ancho completo (sin colapsar en desktop) */
.sidebar.collapsed { width: var(--sidebar-width); }

.sidebar-header {
  padding: 12px 16px;
  display: flex; align-items: center; justify-content: space-between;
}

.sidebar-toggle { background: transparent; border: 0; color: #fff; font-size: 1.1rem; cursor: pointer; }

/* Contenedor de navegación con scroll */
.nav-container { flex:1; overflow-y:auto; overflow-x:hidden; scroll-behavior:smooth; padding: 10px; position: relative; }

/* Lista de navegación */
.sidebar-nav { padding:0; margin:0; list-style:none; display:flex; flex-direction:column; }
.nav-item { list-style:none; }

.nav-link {
  display:flex; align-items:center; gap:10px;
  padding: 10px 12px;
  color: var(--text-dark);
  text-decoration:none;
  transition: all var(--transition-speed) ease;
  position:relative;
  white-space:nowrap;
  border-radius:8px;
}

.nav-link i { font-size:1.05rem; width:20px; text-align:center; color: var(--accent-color); }

.nav-link:hover { background-color: var(--bg-hover); color: var(--accent-color); }

.nav-link.active { background-color: var(--bg-active); color:#155724; }

.nav-text { opacity:1; transition: opacity var(--transition-speed) ease; font-weight:600; }
/* Mantener legible el texto también en modo colapsado */
.sidebar.collapsed .nav-text { opacity:1; }

/* Dropdowns (si se usan) */
.nav-dropdown { max-height:0; overflow:hidden; transition:max-height var(--transition-speed) ease; background:#f8f9fa; border-left:4px solid var(--bg-active); }
.nav-dropdown.show { max-height:300px; }
.nav-dropdown .nav-link { margin-left:8px; padding-left:20px; font-size:.95rem; border-left:3px solid transparent; }
.nav-dropdown .nav-link:hover { border-left-color: var(--accent-color); }
.sidebar.collapsed .nav-dropdown { display:none; }

/* Área de perfil de usuario fija al fondo */
.user-profile-container { position:absolute; bottom:0; left:0; right:0; border-top:1px solid var(--separator); background:#f8f9fa; padding:10px 12px; }

/* Contenido principal alineado con el sidebar */
.main-content {
  margin-left: var(--sidebar-width);
  padding: 20px;
  transition: margin-left var(--transition-speed) ease;
  min-height: 100vh;
  background-color: #f8f9fa;
  position: relative;
  width: calc(100% - var(--sidebar-width));
  box-sizing: border-box;
}

.sidebar.collapsed + .main-content,
.sidebar.collapsed ~ .main-content {
  margin-left: var(--sidebar-width);
  width: calc(100% - var(--sidebar-width));
}

/* Overlay para móviles */
.sidebar-overlay { position:fixed; top:0; left:0; width:100%; height:100%; background-color: rgba(0,0,0,.5); z-index:999; opacity:0; visibility:hidden; transition: all var(--transition-speed) ease; }
.sidebar-overlay.show { opacity:1; visibility:visible; }

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform var(--transition-speed) ease; }
  .sidebar.show { transform: translateX(0); }
  .main-content { margin-left:0; width:100%; }
  .sidebar.collapsed + .main-content,
  .sidebar.collapsed ~ .main-content { margin-left:0; width:100%; }
  .mobile-toggle { position: fixed; top: 20px; left: 20px; z-index: 1001; background-color: var(--primary-color); color: #fff; border: 0; padding: 12px; border-radius: 8px; cursor: pointer; display: none; box-shadow: 0 4px 12px rgba(0,0,0,.2); font-size: 16px; width: 48px; height: 48px; align-items: center; justify-content: center; }
  .mobile-toggle.show { display:flex !important; }
  .main-content { padding-top: 70px; padding-left: 20px; padding-right: 20px; padding-bottom: 20px; }
}

/* Scrollbar simple y neutro */
.sidebar::-webkit-scrollbar, .nav-container::-webkit-scrollbar { width: 8px; }
.sidebar::-webkit-scrollbar-track, .nav-container::-webkit-scrollbar-track { background: #f1f3f5; border-radius: 10px; }
.sidebar::-webkit-scrollbar-thumb, .nav-container::-webkit-scrollbar-thumb { background: #cfd8dc; border-radius: 10px; }

/* Modo sin sidebar (si se usa) */
body.no-sidebar .main-content { margin-left:0 !important; width:100% !important; max-width:100% !important; }
body.no-sidebar .sidebar, body.no-sidebar .mobile-toggle, body.no-sidebar .sidebar-overlay { display:none !important; }
body.no-sidebar { padding-left:0 !important; }
body.no-sidebar .container-fluid, body.no-sidebar .container { padding-left:15px !important; padding-right:15px !important; }