/* Styles of tool: Tower of Hanoi */
.th-pegs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;align-items:end;margin-top:12px}
.th-peg{position:relative;min-height:220px;display:flex;flex-direction:column-reverse;align-items:center;justify-content:flex-start;padding-bottom:8px;border-bottom:6px solid var(--mid);cursor:pointer;border-radius:4px}
.th-peg.sel{background:var(--light)}
.th-rod{position:absolute;bottom:8px;width:8px;height:200px;background:var(--mid);border-radius:4px;z-index:0}
.th-disk{position:relative;z-index:1;height:26px;border-radius:6px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.85rem;margin-bottom:3px;box-shadow:0 1px 3px rgba(0,0,0,.25)}