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.calculator-lesson header{padding-bottom:1.5rem;border-bottom:1px solid var(--line)}
.calculator-lesson h2{font-size:clamp(1.4rem,3vw,1.9rem);line-height:1.25;letter-spacing:-.025em;margin:0 0 1rem}
.calculator-lesson header h2{font-size:clamp(1.8rem,4vw,2.5rem)}
.calculator-lesson h3{font-size:1.1rem;line-height:1.4;margin:0 0 .6rem}
.calculator-lesson section{margin-top:2.5rem}.calculator-lesson p{margin:.8rem 0}
.calculator-lesson li{padding-left:.25rem;margin:.7rem 0}.calculator-lesson ul,.calculator-lesson ol{padding-left:1.5rem}
.calculator-lesson .lesson-formula,.calculator-lesson .lesson-next{padding:1.25rem;background:var(--soft);border:1px solid var(--line);border-radius:16px}
.lesson-formula{font-weight:650}.calculator-lesson .lesson-next{margin-top:1.5rem;border-left:4px solid var(--orange)}
.calculator-lesson .lesson-next p{margin-bottom:0}
.lesson-faq details{border-bottom:1px solid var(--line);padding:1rem 0}.lesson-faq summary{cursor:pointer;font-weight:650;min-height:44px;align-content:center;line-height:1.5}
.lesson-faq summary:focus-visible,.calculator-lesson a:focus-visible{outline:3px solid var(--ink);outline-offset:4px;border-radius:3px}
.calculator-lesson a{color:var(--ink);text-underline-offset:4px}.calculator-lesson .field-hint{font-size:.9rem;color:var(--ink)}
.calculator-lesson .lesson-disclaimer{margin-top:2rem;font-size:.9rem;border-top:1px solid var(--line);padding-top:1rem}
.plain-english h3:not(:first-child){margin-top:1.1rem}.plain-english p{font-size:.9rem;line-height:1.6}.result-disclaimer{font-size:.75rem;line-height:1.6}
.result-actions .icon-button{font-size:.8rem;min-height:44px}
@media(max-width:500px){.calculator-lesson{padding:0 1.2rem}.calculator-lesson .lesson-formula,.calculator-lesson .lesson-next{padding:1rem}}
@media print{.calculator-lesson{display:none!important}}