#sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--color-sidebar-bg);
  color: var(--color-sidebar-text);
  border-left: 1px solid var(--color-sidebar-border);
  z-index: 1000;
  overflow-y: auto;
  transition: transform var(--transition-fast);
}

#sidebar .brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-5) var(--space-4);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-strong);
}

#sidebar .brand i {
  color: var(--color-primary);
  font-size: 1.3rem;
}

#sidebar nav {
  display: flex;
  flex-direction: column;
  padding: var(--space-2) var(--space-3);
  gap: 2px;
}

#sidebar .nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.65rem var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-sidebar-text);
  font-weight: 500;
  font-size: 0.9rem;
  position: relative;
  transition: background var(--transition-fast), color var(--transition-fast);
}

#sidebar .nav-link i {
  width: 18px;
  text-align: center;
  font-size: 0.95rem;
  opacity: 0.85;
}

#sidebar .nav-link:hover {
  background: var(--color-surface);
  color: var(--color-sidebar-text-active);
}

#sidebar .nav-link.active {
  background: var(--color-sidebar-active-bg);
  color: var(--color-sidebar-text-active);
  font-weight: 600;
}

#sidebar .nav-link.active i {
  opacity: 1;
  color: var(--color-sidebar-active-accent);
}

#sidebar .nav-link.active::before {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 16px;
  border-radius: 4px;
  background: var(--color-sidebar-active-accent);
}

#sidebar .nav-link.logout {
  color: var(--color-danger);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-sidebar-border);
  border-radius: 0;
  opacity: 0.85;
}

#sidebar .nav-link.logout:hover {
  background: var(--color-danger-soft);
  opacity: 1;
}

/* ---------- سایدبار موبایل (همبرگری) ---------- */
#sidebar-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 999;
  display: none;
}

body.sidebar-open #sidebar-overlay {
  display: block;
}

@media (max-width: 991px) {
  #sidebar {
    transform: translateX(100%);
    box-shadow: var(--shadow-md);
  }

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