/* ========================================
   SIDEBAR
   ======================================== */

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background-color: var(--gray-900);
  color: white;
  display: flex;
  flex-direction: column;
  transition: width var(--transition-normal), transform var(--transition-normal);
  z-index: 100;
  overflow-x: hidden;
  will-change: transform, width;
}

/* Backdrop oscuro para mobile */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

/* Logo */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0 var(--spacing-lg);
  border-bottom: 1px solid var(--gray-700);
  height: var(--navbar-height);
  flex-shrink: 0;
}

.sidebar-logo h2 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  white-space: nowrap;
}

.sidebar-logo span {
  font-size: var(--font-size-xs);
  color: var(--gray-400);
  display: block;
}

/* Navegación */
.sidebar-nav {
  flex: 1;
  padding: var(--spacing-md) 0;
  overflow-y: auto;
}

.sidebar-section {
  padding: var(--spacing-sm) var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.sidebar-section-title {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-500);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  white-space: nowrap;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0.6rem var(--spacing-lg);
  color: var(--gray-400);
  font-size: var(--font-size-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  border-left: 3px solid transparent;
}

.sidebar-link:hover {
  color: white;
  background-color: rgba(255, 255, 255, 0.05);
}

.sidebar-link.active {
  color: white;
  background-color: rgba(255, 255, 255, 0.1);
  border-left-color: var(--primary);
}

.sidebar-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Footer del sidebar */
.sidebar-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--gray-700);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.sidebar-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.sidebar-user-info {
  overflow: hidden;
}

.sidebar-user-name {
  font-size: var(--font-size-sm);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: var(--font-size-xs);
  color: var(--gray-500);
  white-space: nowrap;
}

/* Sidebar colapsado (desktop) */
.sidebar.collapsed {
  width: 70px;
}

.sidebar.collapsed .sidebar-logo h2,
.sidebar.collapsed .sidebar-logo span,
.sidebar.collapsed .sidebar-section-title,
.sidebar.collapsed .sidebar-link span,
.sidebar.collapsed .sidebar-user-info {
  display: none;
}

.sidebar.collapsed .sidebar-link {
  justify-content: center;
  padding-left: 0;
  padding-right: 0;
}

/* ========================================
   RESPONSIVE - Mobile
   ======================================== */

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: 1000;
    width: 280px;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-backdrop {
    display: block;
    pointer-events: none;
  }

  .sidebar-backdrop.visible {
    opacity: 1;
    pointer-events: auto;
  }

  body.sidebar-open {
    overflow: hidden;
  }
}