.acf-dropdown-toc { margin: 20px 0; border: 1px solid #ddd; border-radius: 8px; background: #fff; box-shadow: 0 2px 4px rgba(0,0,0,0.05); }
.toc-toggle { width: 100%; padding: 15px 20px; background: #fff; border: none; cursor: pointer; text-align: left; font-weight: 600; font-size: 16px; display: flex; align-items: center; justify-content: space-between; border-radius: 8px; color: #1b254e; }
.toc-toggle:hover, .toc-toggle:focus, .toc-toggle:active, .toc-toggle[aria-expanded="true"] { background: #fff !important; color: #1b254e !important; }
.toc-icon { margin-right: 10px; width: 20px; height: 20px; flex-shrink: 0; }
.toc-arrow { transition: transform 0.3s ease; font-size: 12px; }
.toc-toggle[aria-expanded="true"] .toc-arrow { transform: rotate(180deg); }
.toc-content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; }
.toc-content.open { max-height: 600px; padding: 15px 20px; }
.toc-list { list-style: none; padding: 0; margin: 0; }
.toc-item { margin: 0; padding: 0; }
.toc-link { display: block; padding: 10px 12px; text-decoration: none; color: #0073aa; border-radius: 4px; transition: background 0.2s ease, color 0.2s ease; }
.toc-link:hover { background: #f0f0f0; color: #005177; }
.toc-item.level-h2 { margin-left: 0; }
.toc-item.level-h3 { margin-left: 20px; }
.toc-item.level-h4 { margin-left: 40px; }
.toc-item.level-h5 { margin-left: 60px; }
.toc-item.level-h6 { margin-left: 80px; }
@media (max-width: 768px) {
    .toc-toggle { font-size: 14px; padding: 12px 15px; }
    .toc-content.open { max-height: 50vh; padding: 12px 15px; }
    .toc-item.level-h3 { margin-left: 10px; }
    .toc-item.level-h4 { margin-left: 20px; }
    .toc-item.level-h5 { margin-left: 30px; }
    .toc-item.level-h6 { margin-left: 40px; }
}