.choice-group{border:0;min-width:0;margin:0;padding:0}.choice-group__legend{margin-bottom:var(--space-2);font-weight:var(--weight-bold);padding:0}.choice-group__hint{margin:calc(-1 * var(--space-1)) 0 var(--space-2);color:var(--color-text-muted);font-size:var(--text-sm)}.choice-group__options{gap:var(--space-2);display:grid}.choice-group__option{column-gap:var(--space-3);padding:var(--space-3);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--duration-fast);grid-template-columns:auto 1fr;align-items:start;display:grid;position:relative}.choice-group__option:hover{border-color:var(--color-border-strong)}.choice-group__option:has(input:checked){border-color:var(--color-accent);box-shadow:inset 0 0 0 1px var(--color-accent);background:var(--color-accent-soft)}.choice-group__option:has(input:focus-visible){box-shadow:var(--focus-ring)}.choice-group__option input{width:1.125rem;height:1.125rem;accent-color:var(--color-accent);margin:.2rem 0 0}.choice-group__option input:focus-visible{box-shadow:none}.choice-group__label{cursor:pointer;font-weight:var(--weight-medium)}.choice-group__label:after{content:"";border-radius:inherit;position:absolute;inset:0}.choice-group__detail{font-weight:var(--weight-bold);white-space:nowrap}.choice-group__link,.choice-group__link-sentence{z-index:1;margin-top:var(--space-1);font-size:var(--text-sm);grid-column:2;justify-self:start;position:relative}.choice-group__link-sentence{color:var(--color-text-muted);margin-bottom:0}.choice-group__option--disabled{background:var(--color-surface-muted)}.choice-group__option--disabled:hover{border-color:var(--color-border)}.choice-group__option--disabled input,.choice-group__option--disabled .choice-group__label{cursor:not-allowed;opacity:.55}.choice-group__description{margin:var(--space-1) 0 0;color:var(--color-text-muted);font-size:var(--text-sm);grid-column:2}.choice-group__label-short{display:none}@media (width<=47.99rem){.choice-group--short-labels .choice-group__options{grid-template-columns:repeat(2,minmax(0,1fr))}.choice-group--short-labels .choice-group__option{column-gap:var(--space-2);padding:var(--space-2) var(--space-3)}.choice-group--short-labels .choice-group__label-full{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.choice-group--short-labels .choice-group__label-short{display:inline}}.text-field__label{font-weight:var(--weight-bold);display:block}.text-field__hint{margin:var(--space-1) 0 0;color:var(--color-text-muted);font-size:var(--text-sm)}.text-field__control{margin-top:var(--space-2);background:var(--color-surface);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);align-items:center;display:flex}.text-field__control:focus-within{border-color:var(--color-focus);box-shadow:var(--focus-ring)}.text-field__control--invalid{border-color:var(--color-danger);box-shadow:inset 0 0 0 1px var(--color-danger)}.text-field__prefix{padding-left:var(--space-3);color:var(--color-text-muted);font-weight:var(--weight-medium)}.text-field__control input{width:100%;min-width:0;min-height:3rem;padding:var(--space-2) var(--space-3);color:var(--color-text);font:inherit;font-size:var(--text-xl);font-variant-numeric:tabular-nums;background:0 0;border:0;flex:1}.text-field__control input:focus-visible{box-shadow:none;outline:none}.text-field__error{gap:var(--space-2);min-height:calc(2em * var(--leading-normal));margin:var(--space-2) 0 0;color:var(--color-danger);font-size:var(--text-sm);font-weight:var(--weight-medium);align-items:flex-start;display:flex}.text-field--compact .text-field__error:empty{display:none}.calculator{padding:var(--space-5);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}.calculator__heading{margin:0 0 var(--space-4);font-size:var(--text-xl)}.calculator__notice{margin-bottom:var(--space-4)}.calculator__form{gap:var(--space-5);display:grid}@media (width<=30rem){.calculator{padding:var(--space-4)}}@media (width>=56rem){.calculator{padding:var(--space-6)}.calculator__heading{margin-bottom:var(--space-5)}.calculator__form{column-gap:var(--space-6);grid-template:"amount result""rate result""rate details"1fr/minmax(0,1.1fr) minmax(0,1fr);align-items:start}.calculator__area--amount{grid-area:amount}.calculator__area--result{grid-area:result}.calculator__area--rate{grid-area:rate}.calculator__area--details{grid-area:details}.calculator__form--find-rate{grid-template-rows:auto 1fr;grid-template-areas:"amount result""amount details"}}.calculator__area{gap:var(--space-5);min-width:0;display:grid}.calculator__area[hidden]{display:none}.calculator__area--amount .text-field{margin-bottom:calc(-1 * var(--space-3))}.calculator__area--amount .text-field--compact{margin-bottom:0}@media (width>=56rem){.calculator__area--amount .text-field{margin-bottom:0}.calculator__area--amount .text-field__error:empty{display:none}}.calculator__note{color:var(--color-text-muted);font-size:var(--text-sm);margin:0}.calculator__actions{gap:var(--space-3);flex-wrap:wrap;display:flex}.results{padding:var(--space-4);background:var(--color-surface-muted);border-radius:var(--radius-md)}.results__heading{margin:0 0 var(--space-3);font-size:var(--text-lg)}.results__list{gap:var(--space-2);margin:0;display:grid}.results__row{justify-content:space-between;gap:var(--space-1) var(--space-3);padding:var(--space-2) 0;border-bottom:1px solid var(--color-border);flex-wrap:wrap;display:flex}.results__row dt{color:var(--color-text-muted)}.results__row dd{font-variant-numeric:tabular-nums;font-weight:var(--weight-medium);margin:0}.results__row--target{border-bottom:0}.results__row--target dt{color:var(--color-text);font-weight:var(--weight-bold)}.results__row--target dd{font-size:var(--text-2xl);font-weight:var(--weight-bold);color:var(--color-accent)}.results__meta{min-height:1.6em;margin:var(--space-3) 0 0;color:var(--color-text-muted);font-size:var(--text-sm)}.copy-feedback__status{gap:var(--space-2);min-height:1.6em;margin:calc(-1 * var(--space-2)) 0 0;font-size:var(--text-sm);font-weight:var(--weight-medium);align-items:flex-start;display:flex}.copy-feedback__status--copied{color:var(--color-success)}.copy-feedback__status--failed{color:var(--color-danger)}.copy-feedback__fallback{gap:var(--space-2);margin-top:var(--space-3);font-size:var(--text-sm);font-weight:var(--weight-bold);display:grid}.copy-feedback__fallback textarea{width:100%;padding:var(--space-2);border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);font-family:var(--font-mono);font-size:var(--text-sm);font-weight:var(--weight-normal);resize:vertical}.explanation__heading{margin:0 0 var(--space-2);font-size:var(--text-lg)}.explanation__period,.explanation__formula{margin:0 0 var(--space-2)}.explanation__formula code,.explanation__math{font-family:var(--font-mono);font-size:var(--text-sm)}.explanation__formula code{padding:var(--space-1) var(--space-2);background:var(--color-surface-muted);border-radius:var(--radius-sm);white-space:pre-wrap;display:inline-block}.explanation__steps{margin:0 0 var(--space-2);padding-left:var(--space-5)}.explanation__note{color:var(--color-text-muted);font-size:var(--text-sm);margin:0}.source-note{gap:var(--space-2);padding-top:var(--space-3);border-top:1px solid var(--color-border);color:var(--color-text-muted);font-size:var(--text-sm);align-items:flex-start;margin:0;display:flex}.source-note>.icon{margin-top:.15rem}