/* Reset básico */
:root {
  --azul-negro: #073260;
  --azul-petroleo: #1e4b8a;
  --azul-nocturno: #1e293b;
  --azul-medio: #408ad9;
  --azul-gris: #1e293b; /* Stronger text color for better contrast */
  --azul-claro: #073260;

  /* Extras para efectos */
  --sombra-oscura: rgba(0, 0, 0, 0.08);
  --hover-azul: rgba(7, 50, 96, 0.05);
  --hover-azul-fuerte: rgba(7, 50, 96, 0.1);
  --borde-suave: #e2e8f0;
  --texto-claro: #1e293b;
  --rojo-fuerte: #ef4444;
  --rojo-hover: rgba(239, 68, 68, 0.08);
}

/* Sidebar principal */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 70px;
  /* collapsed default for small screens */
  height: 100vh;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  padding: 20px 0;
  overflow-y: auto;
  overflow-x: hidden;
  box-shadow: 4px 0 20px var(--sombra-oscura);
  z-index: 1000;
  border-right: 1px solid var(--borde-suave);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* expand on hover only for small/medium screens; overwritten on large screens */
.sidebar:hover {
  width: 260px;
}

/* Marca / Logo */
.sidebar .brand {
  text-align: center;
  padding: 0 5px;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.25);
  transition: all 0.3s ease;
  overflow: hidden;
}

.sidebar .brand .tit-prin {
  font-size: 0.85rem;
  color: var(--azul-claro);
  font-family: 'Inter', sans-serif; /* Clean font */
  font-weight: 500;
  text-shadow: none; /* Remove heavy legacy shadows */
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0.8;
}

.sidebar:hover .brand .tit-prin {
  font-size: 1.25rem;
  writing-mode: initial;
  font-weight: 600;
  opacity: 1;
}

/* Navegación */
.sidebar .nav {
  list-style: none;
}

.sidebar .nav-item {
  margin-bottom: 4px;
}

/* Enlaces */
.sidebar .nav-link {
  color: var(--azul-gris);
  font-weight: 500;
  padding: 14px 15px;
  border-radius: 10px;
  margin: 0 5px;
  justify-content: center;
  display: flex;
  align-items: center;
  transition: 0.3s;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  position: relative;
}

.sidebar:hover .nav-link {
  margin: 0 10px;
  justify-content: flex-start;
}

/* Hover y Active */
.sidebar .nav-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: linear-gradient(135deg, var(--azul-nocturno), var(--azul-medio));
  border-radius: 10px 0 0 10px;
  transition: 0.3s;
}

.sidebar .nav-link:hover {
  background: var(--hover-azul) !important;
  color: var(--azul-claro) !important;
  box-shadow: 0 4px 12px rgba(65, 90, 119, 0.3);
  transform: translateX(5px);
}

.sidebar .nav-link:hover::before {
  width: 4px;
}

.sidebar .nav-link.active {
  background: var(--azul-negro) !important;
  color: white !important;
  box-shadow: 0 4px 15px rgba(7, 50, 96, 0.3);
  transform: translateX(3px);
}

/* Iconos */
.sidebar .nav-link i {
  width: 20px;
  text-align: center;
  font-size: 1.2rem;
  margin-right: 0;
  transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar:hover .nav-link i {
  margin-right: 12px;
  font-size: 1.1rem;
}

.sidebar .nav-link:hover i {
  transform: scale(1.1);
}

/* Texto oculto */
.sidebar .nav-link-text {
  opacity: 0;
  width: 0;
  overflow: hidden;
  transition: 0.3s;
}

.sidebar:hover .nav-link-text {
  opacity: 1;
  width: auto;
}

/* Tooltip */
.sidebar .nav-link::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 70px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--azul-nocturno);
  color: white;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: 0.3s;
}

.sidebar:not(:hover) .nav-link:hover::after {
  opacity: 1;
  left: 75px;
}

/* Submenu Dot Minimalista */
.submenu-dot {
  font-size: 0.35rem !important; /* Smaller dot */
  opacity: 0.5;
  transition: all 0.3s ease;
  margin-right: 5px;
}

.nav-link:hover .submenu-dot,
.nav-link.active .submenu-dot {
  opacity: 1;
  transform: scale(1.2);
  color: var(--azul-claro);
}

/* Dropdown / Submenus */
.sidebar .dropdown-item {
  padding: 10px 15px 10px 48px; /* Extra padding for the hierarchy line */
  color: var(--azul-gris);
  font-weight: 600; /* Stronger weight for submenus */
  border-radius: 8px;
  margin: 2px 10px;
  transition: all 0.3s ease;
  position: relative;
  font-size: 0.9rem;
}

.sidebar .dropdown-item:hover {
  background: var(--hover-azul-fuerte) !important; /* Stronger hover */
  color: var(--azul-claro) !important;
  transform: translateX(4px);
}

.sidebar .dropdown-item.active {
  background: var(--hover-azul-fuerte);
  color: var(--azul-negro) !important;
}

/* Submenús con Línea de Jerarquía */
.sidebar .collapse {
  display: none;
  background: rgba(0, 0, 0, 0.02); /* Subtle background for the group */
  margin: 5px 0;
  border-left: 2px solid var(--azul-medio); /* Hierarchy Line */
  margin-left: 28px; /* Position line correctly */
}

.sidebar .collapse.show {
  display: block !important;
  /* Forzar visibilidad */
}

/* Cerrar sesión */
.sidebar .nav-link.text-danger {
  color: var(--rojo-fuerte) !important;
}

.sidebar .nav-link.text-danger:hover {
  background: var(--rojo-hover) !important;
  color: #571313 !important;
}

/* Contenido principal */
.main-content {
  margin-left: 70px;
  /* default reserve when sidebar is collapsed */
  padding: 20px;
  min-height: 100vh;
  background: transparent;
  /* let base.css provide the page background */
  color: inherit;
  transition: margin-left 0.3s ease, padding 0.3s ease;
}

.sidebar:hover~.main-content {
  margin-left: 260px;
}

/* Restablecido: comportamiento original del sidebar (70px -> 260px en hover)
   No forzamos distribución 20%/80% en pantallas grandes; dejamos que `base.css`
   controle el desplazamiento y el ancho del main mediante las reglas existentes. */

/* Estado cuando el menú está abierto (JS) */
body.menu-open .sidebar {
  width: 260px;
}

body.menu-open .main-content {
  margin-left: 260px;
}

/* Overlay para móviles (controlado por JS mediante la clase body.menu-overlay) */
/* Overlay para móviles (controlado por JS mediante la clase body.menu-overlay) */
#overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.18);
  z-index: 900;
  transition: opacity 0.25s ease;
}

body.menu-overlay #overlay {
  display: block;
  opacity: 1;
}

/* Reglas para móviles */
@media (max-width: 768px) {

  /* Sidebar SIEMPRE visible colapsado (70px) */
  .sidebar {
    width: 70px;
    transform: none;
    /* Sin desplazamiento oculto */
    left: 0;
    z-index: 1000;
  }

  /* Al abrir (clase menu-open), expandir */
  body.menu-open .sidebar {
    width: 260px;
  }

  /* Contenido principal */
  .main-content {
    margin-left: 70px !important;
    /* Dejar hueco a la barra */
    padding: 15px;
    padding-top: 70px;
    /* Espacio superior si fuera necesario */
  }

  /* Textos ocultos por defecto en la barra colapsada móvil */
  .sidebar .nav-link-text {
    opacity: 0;
    width: 0;
    display: none;
  }

  /* Al abrir, mostrar textos */
  body.menu-open .sidebar .nav-link-text {
    opacity: 1 !important;
    width: auto !important;
    display: inline-block;
  }

  /* Alineación de items: Centro cuando colapsado */
  .sidebar .nav-link {
    justify-content: center;
    padding: 12px 10px;
    margin: 0 3px;
  }

  /* Alineación al abrir: Inicio */
  body.menu-open .sidebar .nav-link {
    justify-content: flex-start !important;
    padding-left: 15px;
  }

  /* Icono sin margen cuando colapsado */
  .sidebar .nav-link i {
    margin-right: 0;
    font-size: 1.3rem;
  }

  /* Icono con margen al abrir */
  body.menu-open .sidebar .nav-link i {
    margin-right: 12px;
    font-size: 1.1rem;
  }

  /* Brand responsive */
  .sidebar .brand {
    padding: 0 3px;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
  }

  .sidebar .brand .tit-prin {
    font-size: 0.75rem;
  }

  body.menu-open .sidebar .brand .tit-prin {
    font-size: 1.2rem;
  }

  /* Dropdown items responsive */
  .sidebar .dropdown-item {
    padding: 8px 10px 8px 35px;
    margin: 2px 5px;
    font-size: 0.9rem;
  }

  /* Tooltips ocultos en móvil */
  .sidebar .nav-link::after {
    display: none;
  }
}

/* Extra small mobile */
@media (max-width: 480px) {
  .sidebar {
    width: 60px;
  }

  body.menu-open .sidebar {
    width: 240px;
  }

  .main-content {
    margin-left: 60px !important;
    padding: 10px;
    padding-top: 60px;
  }

  .sidebar .nav-link {
    padding: 10px 8px;
  }

  .sidebar .nav-link i {
    font-size: 1.2rem;
  }

  .sidebar .brand .tit-prin {
    font-size: 0.65rem;
  }

  body.menu-open .sidebar .brand .tit-prin {
    font-size: 1rem;
  }
}

/* Tablet adjustments */
@media (min-width: 768px) and (max-width: 1024px) {
  .sidebar {
    width: 70px;
  }

  .sidebar:hover {
    width: 240px;
  }

  .main-content {
    margin-left: 70px;
  }

  .sidebar:hover~.main-content {
    margin-left: 240px;
  }
}