/* ===========================
   DESKTOP STYLES
   Min-width: 900px
   =========================== */

@media (min-width: 900px) {

  .docs-layout {
    display: grid;
    grid-template-columns: 280px 1fr 240px;
    min-height: 100vh;
    max-width: 1600px;
    margin: 0 auto;
  }

  .docs-layout.no-toc {
    grid-template-columns: 280px 1fr;
  }

  /* ---- Header ---- */
  .header {
    position: sticky;
    top: 0;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
    z-index: 100;
    height: 64px;
  }

  [data-theme="light"] .header {
    background: rgba(255, 255, 255, 0.85);
  }

  .header-inner {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
  }

  .header-left {
    display: flex;
    align-items: center;
    gap: 2rem;
  }

  .logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.5rem;
    letter-spacing: 0.04em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .logo-separator {
    width: 1px;
    height: 20px;
    background: var(--border-default);
  }

  .logo-docs {
    color: var(--text-secondary);
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.25rem;
    letter-spacing: 0.06em;
  }

  .header-nav {
    display: flex;
    gap: 0.25rem;
  }

  .header-nav a {
    padding: 0.5rem 0.875rem;
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all 0.2s ease;
  }

  .header-nav a:hover,
  .header-nav a.active {
    color: var(--text-primary);
    background: var(--bg-hover);
  }

  .header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  /* ---- Search Bar ---- */
  .search-trigger {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.875rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    color: var(--text-tertiary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 240px;
    font-family: inherit;
  }

  .search-trigger:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-default);
  }

  .search-trigger svg {
    width: 14px;
    height: 14px;
  }

  .kbd {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 0.125rem;
    padding: 0.125rem 0.375rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    font-size: 0.6875rem;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-tertiary);
  }

  /* ---- Sidebar (Left) ---- */
  .sidebar {
    position: sticky;
    top: 64px;
    height: calc(100vh - 64px);
    padding: 2rem 1.5rem 2rem 2rem;
    overflow-y: auto;
    border-right: 1px solid var(--border-subtle);
    display: block;
  }

  .sidebar-section {
    margin-bottom: 2rem;
  }

  .sidebar-section-title {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
    padding: 0 0.75rem;
  }

  .sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.4375rem 0.75rem;
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all 0.15s ease;
    position: relative;
  }

  .sidebar-item:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
  }

  .sidebar-item.active {
    color: var(--text-primary);
    background: var(--bg-hover);
    font-weight: 500;
  }

  .sidebar-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 16px;
    background: var(--text-primary);
    border-radius: 2px;
  }

  .sidebar-item svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
  }

  /* ---- Main Content ---- */
  .main-content {
    padding: 3rem 4rem;
    max-width: 100%;
    min-width: 0;
  }

  .breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    margin-bottom: 1.5rem;
  }

  .breadcrumbs a {
    color: var(--text-tertiary);
  }

  .breadcrumbs a:hover {
    color: var(--text-primary);
  }

  .breadcrumbs svg {
    width: 12px;
    height: 12px;
  }

  .page-header {
    margin-bottom: 2.5rem;
  }

  .page-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    font-size: 0.8125rem;
    color: var(--text-tertiary);
  }

  .page-meta-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
  }

  .page-meta-item svg {
    width: 14px;
    height: 14px;
  }

  /* ---- TOC (Right Sidebar) ---- */
  .toc {
    position: sticky;
    top: 64px;
    height: calc(100vh - 64px);
    padding: 3rem 1.5rem 2rem 1rem;
    overflow-y: auto;
  }

  .toc-title {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
  }

  .toc-list {
    list-style: none;
    border-left: 1px solid var(--border-subtle);
  }

  .toc-list a {
    display: block;
    padding: 0.375rem 0 0.375rem 1rem;
    margin-left: -1px;
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    border-left: 1px solid transparent;
  }

  .toc-list a:hover {
    color: var(--text-primary);
  }

  .toc-list a.active {
    color: var(--text-primary);
    border-left-color: var(--text-primary);
  }

  /* ---- Card Grid ---- */
  .card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 1.75rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    display: block;
  }

  .card:hover {
    border-color: var(--border-default);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }

  .card-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    color: var(--text-secondary);
  }

  .card-icon svg {
    width: 20px;
    height: 20px;
  }

  .card-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.5rem;
    letter-spacing: 0.02em;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
  }

  .card-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.25rem;
  }

  .card-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-tertiary);
  }

  .card-arrow {
    margin-left: auto;
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
  }

  .card:hover .card-arrow {
    transform: translateX(4px);
    color: var(--text-primary);
  }

  /* ---- Article Actions ---- */
  .article-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    margin: 2rem 0;
  }

  /* ---- Pagination ---- */
  .pagination {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 3rem 0 2rem;
  }

  .pagination-link {
    display: flex;
    flex-direction: column;
    padding: 1.25rem 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    transition: all 0.2s ease;
  }

  .pagination-link:hover {
    border-color: var(--border-default);
    background: var(--bg-tertiary);
  }

  .pagination-link.next {
    text-align: right;
  }

  .pagination-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.375rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
  }

  .pagination-link.next .pagination-label {
    justify-content: flex-end;
  }

  .pagination-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.125rem;
    color: var(--text-primary);
    letter-spacing: 0.02em;
  }

  /* ---- Feedback ---- */
  .feedback {
    padding: 2rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    margin: 2rem 0;
    text-align: center;
  }

  .feedback-question {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
  }

  .feedback-emojis {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
  }

  .emoji-btn {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .emoji-btn:hover {
    transform: translateY(-2px) scale(1.1);
    border-color: var(--border-default);
    background: var(--bg-hover);
  }

  .emoji-btn.selected {
    background: var(--accent-muted);
    border-color: var(--text-primary);
  }
}