.help-button {display:inline-flex;align-items:center;justify-content:center;vertical-align:middle;margin-left:7px;width:26px;height:26px;min-width:26px;padding:0;border:1px solid var(--color-rule-strong);border-radius:50%;background:var(--color-surface);color:var(--color-muted);font:600 13px var(--font-ui);cursor:help;letter-spacing:0;}
.help-button:hover,.help-button[aria-expanded="true"] {color:var(--color-accent);border-color:var(--color-accent);background:var(--color-accent-wash);}
.help-button:focus-visible {outline:3px solid var(--color-focus);outline-offset:3px;}
.help-label-row {display:flex;align-items:center;gap:2px;margin-bottom:6px;}
.help-label-row label {margin-bottom:0;}
.help-popup {position:fixed;z-index:1000;width:max-content;max-width:min(320px,calc(100vw - 24px));box-sizing:border-box;padding:14px 16px;border:1px solid var(--color-rule-strong);border-radius:10px;background:var(--color-surface);color:var(--color-ink);box-shadow:0 8px 30px #0003;font:400 13px/1.65 var(--font-ui);text-align:left;}
.help-popup[hidden] {display:none;}
@media(pointer:coarse) {.help-button {width:36px;height:36px;min-width:36px;}}
@media print {.help-button,.help-popup {display:none;}}