.tcb-progress-bar { position: fixed; top: 0; left: 0; height: 3px; width: var(--tcb-progress, 0%); background: var(--accent, #2563eb); z-index: 9999; transition: width 100ms linear; pointer-events: none; }

.tcb-toc li.is-active > a { color: var(--accent, #2563eb); font-weight: 600; }
.tcb-toc li.is-active { position: relative; }
.tcb-toc li.is-active::before { content: ""; position: absolute; left: -1.25rem; top: 0.3em; width: 3px; height: calc(1em + 0.2em); background: var(--accent, #2563eb); border-radius: 2px; }

[data-tcb-copy] { cursor: pointer; }
.tcb-share-copied { opacity: 0.85; }

html { scroll-padding-top: var(--tcb-header-offset, 0px); }