.sidebar {
  width: 280px;
  background: linear-gradient(180deg, var(--primary-color) 0%, #0d291b 100%);
  border-right: none;
  display: flex;
  flex-direction: column;
  height: 100vh;
  min-height: 0;
  box-shadow: 4px 0 15px rgba(0, 0, 0, 0.1);
}

.sidebar-logo {
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

.sidebar-nav {
  flex: 1;
  min-height: 0;
  padding: 0.75rem 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.15) transparent;
}

.nav-link {
  padding: 0.7rem 1.25rem;
  border-radius: 0;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  font-size: 0.875rem;
  letter-spacing: 0.01em;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-left: 3px solid transparent;
  flex-shrink: 0;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: white;
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

.header {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  margin: 1rem 2rem 0;
  z-index: 10;
}

.header-title h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
  margin: 0;
}

.header-user {
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.9rem;
}