{# Main app header: Aird + profile + Browse + feature nav. Pass: nav_title (default Aird), nav_search_path (for Super Search link), show_admin_link (optional). #}
<header class="header app-main-header" role="banner">
  <div class="header-left">
    <h1>{{ nav_title or "Aird" }}</h1>
  </div>
  <nav class="app-header-actions" aria-label="Primary">
    {% if current_user %}
    <a href="/profile" class="app-user-chip" title="Profile settings">
      <svg class="hdr-ico" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><circle cx="12" cy="8" r="4"/><path d="M4 21a8 8 0 0 1 16 0"/></svg>
      <span>{{ handler.get_display_username() }}</span>
    </a>
    {% else %}
    <span class="app-user-chip" aria-hidden="true">
      <svg class="hdr-ico" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><circle cx="12" cy="8" r="4"/><path d="M4 21a8 8 0 0 1 16 0"/></svg>
      <span>Guest</span>
    </span>
    {% end %}
    <button type="button" class="theme-toggle-btn hdr-theme-toggle" aria-label="Toggle dark mode" title="Toggle dark mode">
      <svg class="hdr-ico hdr-ico-sun" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><circle cx="12" cy="12" r="4"/><path d="M12 2v2M12 20v2M4.93 4.93l1.41 1.41M17.66 17.66l1.41 1.41M2 12h2M20 12h2M4.93 19.07l1.41-1.41M17.66 6.34l1.41-1.41"/></svg>
      <svg class="hdr-ico hdr-ico-moon" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M21 12.8A9 9 0 1 1 11.2 3a7 7 0 0 0 9.8 9.8z"/></svg>
    </button>
    <a href="/files/" class="hdr-action-btn hdr-action-btn--browse" title="Browse files">
      <svg class="hdr-ico" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M3 7a2 2 0 0 1 2-2h4l2 2h8a2 2 0 0 1 2 2v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V7z"/></svg>
      <span>Browse</span>
    </a>
    {% if is_feature_enabled('super_search', True) %}
    <a href="/search?path={{ escape(nav_search_path or '') }}" class="hdr-action-btn hdr-action-btn--search" title="Super Search">
      <svg class="hdr-ico" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><circle cx="11" cy="11" r="7"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>
      <span>Search</span>
    </a>
    {% end %}
    {% if is_feature_enabled('file_share', True) %}
    <a href="/share" class="hdr-action-btn hdr-action-btn--share" title="Share files">
      <svg class="hdr-ico" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><circle cx="18" cy="5" r="3"/><circle cx="6" cy="12" r="3"/><circle cx="18" cy="19" r="3"/><line x1="8.59" y1="13.51" x2="15.42" y2="17.49"/><line x1="15.41" y1="6.51" x2="8.59" y2="10.49"/></svg>
      <span>Share</span>
    </a>
    {% end %}
    {% if is_feature_enabled('p2p_transfer', True) %}
    <a href="/p2p" class="hdr-action-btn hdr-action-btn--p2p" title="Peer-to-peer transfer">
      <svg class="hdr-ico" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><polyline points="17 1 21 5 17 9"/><path d="M3 11V9a4 4 0 0 1 4-4h14"/><polyline points="7 23 3 19 7 15"/><path d="M21 13v2a4 4 0 0 1-4 4H3"/></svg>
      <span>P2P</span>
    </a>
    {% end %}
    {% if show_admin_link %}
    {% if user and user["role"] == "admin" %}
    <a href="/admin" class="hdr-action-btn hdr-action-btn--admin" title="Administration">
      <svg class="hdr-ico" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><circle cx="12" cy="12" r="3"/><path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 1 1-2.83 2.83l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 1 1-4 0v-.09a1.65 1.65 0 0 0-1-1.51 1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 1 1-2.83-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 1 1 0-4h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 1 1 2.83-2.83l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 1 1 4 0v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 1 1 2.83 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 1 1 0 4h-.09a1.65 1.65 0 0 0-1.51 1z"/></svg>
      <span>Admin</span>
    </a>
    {% end %}
    {% end %}
    {% if current_user %}
    <a href="/logout" class="hdr-action-btn hdr-action-btn--logout" title="Log out">
      <svg class="hdr-ico" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M9 21H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h4"/><polyline points="16 17 21 12 16 7"/><line x1="21" y1="12" x2="9" y2="12"/></svg>
      <span>Logout</span>
    </a>
    {% else %}
    <a href="/login" class="hdr-action-btn hdr-action-btn--login" title="Log in">
      <svg class="hdr-ico" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M15 3h4a2 2 0 0 1 2 2v14a2 2 0 0 1-2 2h-4"/><polyline points="10 17 15 12 10 7"/><line x1="15" y1="12" x2="3" y2="12"/></svg>
      <span>Login</span>
    </a>
    {% end %}
  </nav>
</header>