 <i class="bx bx-moon dark-icon"></i>
    </button>
  </div>
</div>

<style>
  .header {
    position: sticky;
    top: 0;
    background-color: var(--bg-primary);
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px var(--shadow-color),
      0 2px 4px -1px var(--shadow-color);
    z-index: 101;
  }

  .header-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  #mobile-nav-toggle {
    display: 