/* ============================================================
   MOBILE NAVIGATION - DRAWER HEADER STYLES
   ============================================================ */

@media screen and (max-width: 76.24em) {
  /* Drawer header container */
  .tx-drawer-header {
    position: sticky;
    top: 0;
    background-color: var(--md-default-bg-color);
    border-bottom: 1px solid var(--md-default-fg-color--lightest);
    z-index: 10;
    padding: 1rem;
  }
  
  .tx-drawer-header-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }
  
  /* Logo */
  .tx-drawer-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
  }
  
  .tx-drawer-logo svg {
    display: block;
  }
  
  /* Title */
  .tx-drawer-title {
    flex: 1;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--md-default-fg-color);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  
  /* Action buttons container */
  .tx-drawer-actions {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-shrink: 0;
  }
  
  /* Action buttons */
  .tx-drawer-search,
  .tx-drawer-theme,
  .tx-drawer-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--md-default-fg-color);
    cursor: pointer;
    border-radius: 0.25rem;
    transition: background-color 150ms;
  }
  
  .tx-drawer-search:hover,
  .tx-drawer-theme:hover,
  .tx-drawer-close:hover {
    background-color: var(--md-default-fg-color--lightest);
  }
  
  .tx-drawer-close {
    color: var(--md-typeset-a-color);
  }
  
  .tx-drawer-close:hover {
    background-color: rgba(136, 0, 255, 0.1);
  }

  /* Controls Container (Hub Switcher) */
  .tx-drawer-controls {
    padding: 0 1rem 1rem 1rem;
    border-bottom: 1px solid var(--md-default-fg-color--lightest);
    background-color: var(--md-default-bg-color);
  }

  /* Hub Chips Styling */
  .tx-drawer-hubs {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto; /* Allow horizontal scrolling if many hubs */
    padding-bottom: 0.25rem;
    scrollbar-width: none; /* Hide scrollbar */
  }

  .tx-drawer-hubs::-webkit-scrollbar {
    display: none;
  }

  .tx-hub-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 0.85rem;
    background-color: transparent;
    color: var(--md-default-fg-color);
    border-radius: 0.375rem;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none !important;
    white-space: nowrap;
    transition: all 150ms;
  }

  .tx-hub-chip:hover {
    background-color: var(--md-default-fg-color--lightest);
  }

  .tx-hub-chip--active {
    background-color: var(--md-default-fg-color--lightest);
    color: var(--md-default-fg-color);
    font-weight: 600;
  }

  /* Footer Styling */
  .tx-drawer-footer {
    padding: 1rem;
    border-top: 1px solid var(--md-default-fg-color--lightest);
    background-color: var(--md-default-bg-color);
    margin-top: auto; /* Ensure it stays at bottom if content is short */
  }

  .tx-drawer-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    background-color: var(--md-default-fg-color); /* Dark button like OpenAI */
    color: var(--md-default-bg-color) !important;
    padding: 0.75rem;
    border-radius: 0.375rem;
    font-weight: 600;
    text-decoration: none !important;
    font-size: 0.95rem;
    margin-bottom: 1rem;
    transition: opacity 150ms;
  }

  .tx-drawer-cta:hover {
    opacity: 0.9;
  }

  .tx-drawer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
  }

  .tx-drawer-links a {
    color: var(--md-default-fg-color--light);
    font-size: 0.85rem;
    text-decoration: none;
  }
}