/* =============================================
   Mablo Navy — menú lateral principal
   Fuente única de estilos del sidebar. Los tokens --nav-* están
   documentados en docs/01-manuales-internos/diseno-sidebar-navy.md.
   Se carga después de gmao.css y gmao-air.css.
   ============================================= */

:root {
  /* Superficies: una sola familia navy, sin negros neutros mezclados */
  --nav-bg: #0b1520;
  --nav-surface: #101e2c;          /* hover, píldora de pie */
  --nav-surface-active: #14283a;   /* ítem activo */
  --nav-border: rgba(148, 176, 200, 0.10);

  /* Texto */
  --nav-text: #94a8ba;             /* ítems en reposo (≈7:1 sobre --nav-bg) */
  --nav-text-strong: #eaf1f7;      /* grupos, hover, activo */
  --nav-text-muted: #70859a;       /* etiquetas, iconos secundarios (≈4.9:1) */

  /* Acento: teal del logo (#36aec6) */
  --nav-accent: #36aec6;
  --nav-accent-strong: #5cc7dc;    /* iconos y texto sobre fondo navy */
  --nav-accent-soft: rgba(54, 174, 198, 0.14);
  --nav-accent-ring: rgba(54, 174, 198, 0.55);

  /* Semántico (solo cerrar sesión) */
  --nav-danger: #f08a8a;
  --nav-danger-soft: rgba(240, 138, 138, 0.10);

  /* Forma y movimiento */
  --nav-radius: 0.625rem;
  --nav-row-height: 2.375rem;
  --nav-transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

/* ---------- Contenedor ---------- */
#main-sidebar {
  background: var(--nav-bg);
  color: var(--nav-text-strong);
  border-right-color: var(--nav-border);
}

#main-sidebar .sidebar-brand {
  border-bottom: 1px solid var(--nav-border);
}

/* El azul oscuro del logo (#124a87) pierde contraste sobre navy: se aclara sin tocar el SVG */
#main-sidebar .sidebar-brand img {
  filter: brightness(1.45) saturate(1.1);
}

#main-sidebar nav {
  display: flex;
  flex-direction: column;
  padding: 0.5rem 0 0.75rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(148, 176, 200, 0.22) transparent;
}

#main-sidebar nav > .sidebar-group {
  flex: 0 0 auto;
}

/* ---------- Grupos (acordeón) ---------- */
#main-sidebar .mb-nav-group {
  min-height: var(--nav-row-height);
  padding: 0.5rem 0.75rem;
  border-radius: var(--nav-radius);
  color: var(--nav-text-strong);
  font-size: 0.8125rem;
  transition: var(--nav-transition);
}

#main-sidebar .mb-nav-group:hover {
  background: var(--nav-surface);
}

#main-sidebar .mb-nav-group svg {
  color: var(--nav-text-muted);
  transition: var(--nav-transition), transform 0.2s ease;
}

#main-sidebar .mb-nav-group .chevron-icon {
  width: 0.875rem;
  height: 0.875rem;
}

#main-sidebar .sidebar-group-active .mb-nav-group {
  color: #ffffff;
}

#main-sidebar .sidebar-group-active .mb-nav-group svg {
  color: var(--nav-accent-strong);
}

/* ---------- Ítems ---------- */
#main-sidebar .accordion-content {
  padding-left: 0.25rem;
  margin-top: 0.25rem;
}

#main-sidebar .mb-nav-item {
  position: relative;
  min-height: var(--nav-row-height);
  margin-block: 1px;
  padding: 0.5rem 0.75rem;
  border-radius: var(--nav-radius);
  color: var(--nav-text);
  font-size: 0.8125rem;
  transition: var(--nav-transition);
}

#main-sidebar .mb-nav-item svg {
  flex-shrink: 0;
  color: var(--nav-text-muted);
  transition: var(--nav-transition);
}

#main-sidebar .mb-nav-item:hover {
  background: var(--nav-surface);
  color: var(--nav-text-strong);
}

#main-sidebar .mb-nav-item:hover svg {
  color: var(--nav-text);
}

/* Estado activo: lo aplica updateSidebarActiveState() en js/ui/manager.js */
#main-sidebar .mb-nav-item.nav-active-item {
  background: var(--nav-surface-active);
  color: #ffffff;
  font-weight: 600;
}

#main-sidebar .mb-nav-item.nav-active-item svg {
  color: var(--nav-accent-strong);
}

#main-sidebar .mb-nav-item.nav-active-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.4375rem;
  bottom: 0.4375rem;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--nav-accent);
}

/* ---------- Foco de teclado ---------- */
#main-sidebar .mb-nav-group:focus-visible,
#main-sidebar .mb-nav-item:focus-visible,
#main-sidebar .mb-nav-foot-btn:focus-visible,
#main-sidebar .mb-nav-new-chat:focus-visible,
#main-sidebar .mb-history-item button:focus-visible {
  outline: 2px solid var(--nav-accent-ring);
  outline-offset: -2px;
}

/* ---------- Historial reciente ---------- */
#main-sidebar .mb-nav-history {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--nav-border);
}

#main-sidebar .mb-nav-history-title {
  color: var(--nav-text-muted);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

#main-sidebar .mb-nav-new-chat {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 0.5rem;
  color: var(--nav-accent-strong);
  transition: var(--nav-transition);
}

#main-sidebar .mb-nav-new-chat:hover {
  background: var(--nav-accent-soft);
}

#main-sidebar .mb-history-item {
  border-left: 2px solid transparent;
  border-radius: 0 var(--nav-radius) var(--nav-radius) 0;
}

#main-sidebar .mb-history-item:hover {
  background: var(--nav-surface);
}

#main-sidebar .mb-history-item.is-active {
  border-left-color: var(--nav-accent);
  background: var(--nav-accent-soft);
}

/* ---------- Pie ---------- */
#main-sidebar #sidebar-footer {
  padding: 0.75rem;
  border-top: 1px solid var(--nav-border);
  background: transparent;
}

#main-sidebar .mb-nav-foot-btn {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  width: 100%;
  min-height: 2.5rem;
  padding: 0.375rem 0.5rem;
  border-radius: var(--nav-radius);
  color: var(--nav-text);
  text-align: left;
  transition: var(--nav-transition);
}

#main-sidebar .mb-nav-foot-btn:hover {
  background: var(--nav-surface);
  color: var(--nav-text-strong);
}

#main-sidebar .mb-nav-chip {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.5rem;
  background: var(--nav-accent-soft);
  color: var(--nav-accent-strong);
  transition: var(--nav-transition);
}

#main-sidebar .mb-nav-foot-btn:hover .mb-nav-chip {
  background: var(--nav-accent);
  color: var(--nav-bg);
}

/* Avatar de usuario: main.js escribe la inicial en el elemento .rounded-full */
#main-sidebar .mb-nav-avatar {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 9999px;
  background: var(--nav-accent-soft);
  box-shadow: inset 0 0 0 1px var(--nav-accent-ring);
  color: var(--nav-accent-strong);
  font-size: 0.75rem;
  font-weight: 700;
}

#main-sidebar .mb-nav-user-name {
  overflow: hidden;
  color: var(--nav-text-strong);
  font-size: 0.8125rem;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Cerrar sesión: discreto en reposo, rojo solo al intentar usarlo */
#main-sidebar .mb-nav-logout {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  min-height: 2.25rem;
  padding: 0.375rem 0.625rem;
  border-radius: var(--nav-radius);
  color: var(--nav-text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  transition: var(--nav-transition);
}

#main-sidebar .mb-nav-logout:hover {
  background: var(--nav-danger-soft);
  color: var(--nav-danger);
}

#main-sidebar .mb-nav-logout:focus-visible {
  outline: 2px solid var(--nav-accent-ring);
  outline-offset: -2px;
}

/* ---------- Móvil (drawer) ---------- */
@media (max-width: 767px) {
  #main-sidebar {
    width: min(20rem, calc(100vw - 2.5rem));
    height: 100dvh;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    border-top-right-radius: 22px;
    border-bottom-right-radius: 22px;
    box-shadow: 24px 0 64px rgba(2, 6, 23, 0.42);
  }

  #main-sidebar.-translate-x-full {
    box-shadow: none !important;
  }

  #main-sidebar .sidebar-brand {
    min-height: 76px;
  }

  #main-sidebar .sidebar-group {
    margin-top: 0.25rem;
  }

  #main-sidebar .mb-nav-group {
    min-height: 2.875rem;
    padding-inline: 0.875rem;
  }

  #main-sidebar .mb-nav-item {
    min-height: 2.75rem;
  }

  #main-sidebar #sidebar-footer {
    padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
    background: var(--nav-bg);
    box-shadow: 0 -10px 24px rgba(2, 6, 23, 0.28);
  }

  #main-sidebar .mb-nav-logout {
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    flex-shrink: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  #main-sidebar * {
    transition: none !important;
  }
}