/* App Container */
.app-container {
  display: flex;
  min-height: 100vh;
  background: var(--color-background);
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  transition: width 0.3s ease;
  z-index: 10;
}

.sidebar.collapsed {
  width: 60px;
}

.sidebar.collapsed .sidebar-header h2,
.sidebar.collapsed .sidebar-subtitle,
.sidebar.collapsed .menu-item-content {
  display: none;
}

.sidebar.collapsed .menu-item {
  justify-content: center;
  padding: var(--space-8);
}

.sidebar.collapsed ~ .main-content {
  margin-left: 60px;
}

.sidebar-header {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
}

.sidebar-header h2 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  margin: 0 0 var(--space-4) 0;
}

.sidebar-subtitle {
  font-size: var(--font-size-sm);
  opacity: 0.9;
  margin: 0;
}

.sidebar-toggle {
  position: absolute;
  top: var(--space-16);
  right: var(--space-12);
  background: none;
  border: none;
  color: var(--color-btn-primary-text);
  cursor: pointer;
  padding: var(--space-6);
  border-radius: var(--radius-sm);
  transition: var(--transition-base);
}

.sidebar-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.toggle-icon {
  width: 20px;
  height: 20px;
}

.content-menu {
  flex: 1;
  padding: var(--space-12);
}

.menu-item {
  display: flex;
  align-items: center;
  padding: var(--space-8) var(--space-12);
  margin-bottom: var(--space-4);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-base);
  border: 1px solid transparent;
}

.menu-item:hover {
  background: var(--color-secondary);
  border-color: var(--color-border);
}

.menu-item.active {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  border-color: var(--color-primary);
}

.menu-item-content {
  flex: 1;
  min-width: 0;
}

.menu-item-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-2);
  line-height: 1.2;
}

.menu-item-description {
  font-size: var(--font-size-xs);
  opacity: 0.8;
  line-height: 1.3;
}

/* Main Content */
.main-content {
  flex: 1;
  background: var(--color-background);
  position: relative;
  height: 100vh;
  overflow-y: auto;
  margin-left: 280px;
  transition: margin-left 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-24);
}

/* Text content styling */
.text-block {
  background: var(--color-surface);
  border-radius: var(--radius-base);
  margin: var(--space-16) var(--space-20);
  padding: var(--space-16);
  border: 1px solid var(--color-border);
}

.text-block:not(:last-child) {
  margin-bottom: var(--space-12);
}

.text-content {
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--color-text);
}

.text-content br {
  margin-bottom: var(--space-8);
}

/* Mixed content spacing */
.feature-content .text-block:first-child {
  margin-top: 0;
}

.feature-content .text-block:last-child {
  margin-bottom: 0;
}

.feature-content .code-block:first-child {
  margin-top: 0;
}

.feature-content .code-block:last-child {
  margin-bottom: 0;
}

/* Markdown content styling */
.markdown-block {
  background: var(--color-surface);
  border-radius: var(--radius-base);
  margin: var(--space-16) var(--space-20);
  padding: var(--space-16);
  border: 1px solid var(--color-border);
}

.markdown-content {
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--color-text);
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3 {
  margin-top: var(--space-16);
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-semibold);
}

.markdown-content p {
  margin-bottom: var(--space-12);
}

.markdown-content ul,
.markdown-content ol {
  margin-left: var(--space-20);
  margin-bottom: var(--space-12);
}

.markdown-content li {
  margin-bottom: var(--space-4);
}

/* Responsive adjustments for sidebar */
@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
  }
  
  .sidebar {
    position: relative;
    width: 100%;
    height: auto;
    z-index: auto;
  }
  
  .main-content {
    margin-left: 0;
    height: auto;
  }
  
  .content-menu {
    display: flex;
    overflow-x: auto;
    padding: var(--space-8);
  }
  
  .menu-item {
    min-width: 160px;
    margin-right: var(--space-6);
    margin-bottom: 0;
  }
  
  .container {
    padding: var(--space-16);
  }
  
  .text-block,
  .markdown-block {
    margin: var(--space-12) var(--space-16);
    padding: var(--space-12);
  }
}