/* Universal input help for all calculators */
.hf-input-label-row{display:inline-flex;align-items:center;gap:7px;position:relative;max-width:100%;vertical-align:middle}
.hf-input-help{position:relative;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;width:20px;height:20px;margin:0;padding:0;border:1px solid rgba(34,84,65,.28);border-radius:50%;background:#f1f5ed;color:#225441;font:600 12px/1 Arial,sans-serif;cursor:pointer;vertical-align:middle;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;z-index:2}
.hf-input-help:hover,.hf-input-help:focus-visible,.hf-input-help.is-open{background:#225441;border-color:#225441;color:#fff;outline:none;transform:translateY(-1px)}
.hf-input-help-icon{display:block;line-height:1}
.hf-input-help-popover{position:absolute;left:0;top:calc(100% + 10px);display:flex;flex-direction:column;gap:6px;width:min(320px,calc(100vw - 36px));padding:14px 16px;border:1px solid rgba(34,84,65,.18);border-radius:14px;background:#fffdf8;color:#16243f;box-shadow:0 14px 35px rgba(15,35,32,.17);font:400 13px/1.5 Arial,sans-serif;text-align:left;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-5px);transition:opacity .18s ease,visibility .18s ease,transform .18s ease}
.hf-input-help-popover strong{display:block;color:#16243f;font:600 13px/1.3 Arial,sans-serif}
.hf-input-help-popover span{display:block;color:#566276}
.hf-input-help.is-open{z-index:1000}
.hf-input-help.is-open .hf-input-help-popover{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
.hf-input-help.opens-left .hf-input-help-popover{left:auto;right:0}
@media (max-width:640px){.hf-input-label-row{gap:6px}.hf-input-help{width:21px;height:21px}.hf-input-help-popover{width:min(300px,calc(100vw - 32px));padding:13px 14px;font-size:13px}}