/* Sidebar - layout moderno */
:root {
  --sidebar-width: 260px;
  --topbar-height: 56px;
}

.app-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1040;
  width: var(--sidebar-width);
  height: 100vh;
  max-height: 100vh;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
  box-shadow: var(--shadow-sm);
}

@media (max-width: 991.98px) {
  .app-sidebar {
    transform: translateX(-100%);
    /* 100dvh = viewport dinâmico: botão Entrar fica visível no celular (fallback: 100vh) */
    height: 100vh;
    height: 100dvh;
    max-height: 100vh;
    max-height: 100dvh;
  }
  .app-sidebar.is-open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-5);
  min-height: var(--topbar-height);
  border-bottom: 1px solid var(--color-border-light);
  flex-shrink: 0;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  font-weight: var(--font-bold);
  font-size: var(--text-xl);
  letter-spacing: -0.02em;
  transition: color var(--transition);
}

.sidebar-brand:hover {
  color: var(--color-primary);
}

.sidebar-brand-icon {
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-lg);
  font-size: 1.25rem;
  transition: transform var(--transition), background var(--transition);
}

.sidebar-brand:hover .sidebar-brand-icon {
  background: var(--color-primary);
  color: #fff;
  transform: scale(1.05);
}

.sidebar-close {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.sidebar-close:hover {
  background: var(--color-border-light);
  color: var(--color-text);
}

.sidebar-nav {
  flex: 1;
  min-height: 0; /* permite o flex encolher e o rodapé ficar visível no mobile */
  overflow-y: auto;
  padding: var(--space-4) var(--space-3);
  -webkit-overflow-scrolling: touch;
}

/* Barra de notificações na sidebar */
.sidebar-notifications {
  padding: var(--space-3);
  border-top: 1px solid var(--color-border-light);
  flex-shrink: 0;
}
.sidebar-notifications-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.sidebar-notifications-btn:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.sidebar-notifications-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 0.35rem;
  font-size: 0.7rem;
  font-weight: var(--font-bold);
  line-height: 1.25rem;
  text-align: center;
  color: #fff;
  background: var(--color-danger, #dc2626);
  border-radius: 50%;
}
.sidebar-notifications-dropdown {
  max-height:  min(70vh, 400px);
  overflow-y: auto;
  min-width: 280px;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
  padding: 0;
}
.sidebar-notification-item {
  padding: var(--space-3);
  white-space: normal;
  border-bottom: 1px solid var(--color-border-light);
}
.sidebar-notification-item:last-child {
  border-bottom: none;
}
.sidebar-notification-unread {
  background: var(--color-primary-light, rgba(37, 99, 235, 0.06));
}
.sidebar-notification-item:hover {
  background: var(--color-surface-alt);
}
.text-break {
  word-break: break-word;
}

.sidebar-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-nav-item {
  margin-bottom: var(--space-1);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: var(--font-medium);
  border-radius: var(--radius-lg);
  transition: background var(--transition), color var(--transition);
}

.sidebar-link:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.sidebar-link.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}

.sidebar-link i {
  font-size: 1.25rem;
  width: 1.5rem;
  text-align: center;
  opacity: 0.9;
}

.sidebar-footer {
  padding: var(--space-4) var(--space-3);
  border-top: 1px solid var(--color-border-light);
  flex-shrink: 0;
  margin-top: auto; /* mantém o rodapé (Entrar/Sair) sempre no fim da sidebar no mobile */
}

.sidebar-link-logout {
  color: var(--color-text-muted);
}

.sidebar-link-logout:hover {
  background: rgba(220, 38, 38, 0.08);
  color: var(--color-danger);
}

.sidebar-btn-login {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary);
  color: #fff !important;
  text-decoration: none;
  font-weight: var(--font-semibold);
  border-radius: var(--radius-lg);
  transition: background var(--transition), transform var(--transition);
}

.sidebar-btn-login:hover {
  background: var(--color-primary-hover);
  color: #fff !important;
  transform: translateY(-1px);
}

.sidebar-btn-login i {
  font-size: 1.25rem;
}

/* Backdrop mobile */
.sidebar-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1035;
  background: rgba(15, 23, 42, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.sidebar-backdrop.is-visible {
  opacity: 1;
  visibility: visible;
}

/* Topbar */
.app-topbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  height: var(--topbar-height);
  padding-left: var(--space-4);
  padding-right: var(--space-4);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-xs);
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 992px) {
}

.topbar-menu-btn {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--color-text);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  z-index: 2;
}

.topbar-menu-btn:hover {
  background: var(--color-surface-alt);
  color: var(--color-primary);
}

.topbar-title {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-semibold);
  font-size: var(--text-lg);
  line-height: 1.25;
  color: var(--color-text);
  letter-spacing: 0;
  pointer-events: none;
}

.topbar-title * {
  pointer-events: auto;
}

.topbar-breadcrumb {
  color: var(--color-text-muted);
  font-weight: var(--font-medium);
}