.calc{background-color: var(--color-paper);padding-block: var(--space-16)}.calc__inner{width: 100%;max-width: var(--container-max);margin-inline: auto;padding-inline: var(--grid-margin)}.calc__head{display: flex;flex-direction: column;align-items: flex-start;margin-bottom: var(--space-8)}.calc__eyebrow{margin: 0 0 var(--space-3);font-family: var(--font-mono);font-weight: 500;font-size: var(--text-xs);letter-spacing: var(--tracking-label);text-transform: uppercase;color: var(--color-stone)}.calc__title{margin: 0;font-family: var(--font-display);font-weight: 700;font-size: var(--text-4xl);color: var(--color-ink)}.calc__rule{display: block;width: var(--rule-w);height: var(--rule-h);margin-top: var(--space-4);background-color: var(--color-stone)}.calc__intro{margin: var(--space-6) 0 0;max-width: 46rem;font-family: var(--font-body);font-weight: 400;font-size: var(--text-lg);line-height: var(--leading-body);color: var(--color-ink-soft)}.calc__layout{display: grid;grid-template-columns: 1fr;gap: var(--space-12);margin-top: var(--space-12)}@media (min-width: 900px){.calc__layout{grid-template-columns: minmax(0,1.05fr) minmax(0,0.95fr);gap: clamp(2rem,4vw,4rem);align-items: start}}.calc__form{margin: 0}.calc-step{margin: 0;padding: var(--space-6) 0;border: 0;border-top: 1px solid var(--color-border)}.calc-step:first-of-type{padding-top: 0;border-top: 0}.calc-step__legend{display: flex;align-items: baseline;gap: var(--space-3);width: 100%;padding: 0 0 var(--space-3);margin-bottom: var(--space-5);border-bottom: 1px solid var(--color-border)}.calc-step__num{font-family: var(--font-mono);font-weight: 500;font-size: var(--text-sm);color: var(--color-stone)}.calc-step__title{font-family: var(--font-mono);font-weight: 500;font-size: var(--text-sm);letter-spacing: var(--tracking-label);text-transform: uppercase;color: var(--color-ink)}.calc-field{display: flex;flex-direction: column;gap: var(--space-2)}.calc-field + .calc-field{margin-top: var(--space-5)}.calc-field-row{display: grid;grid-template-columns: 1fr;gap: var(--space-5)}.calc-field-row .calc-field + .calc-field{margin-top: 0}@media (min-width: 560px){.calc-field-row{grid-template-columns: 1fr 1fr}}.calc-field__label{font-family: var(--font-body);font-weight: 500;font-size: var(--text-sm);color: var(--color-ink)}.calc-field__hint{font-family: var(--font-body);font-weight: 400;font-size: var(--text-xs);color: var(--color-ink-soft)}.calc-input,.calc-select{width: 100%;padding: var(--space-3) var(--space-4);background-color: var(--color-paper);border: 1px solid var(--color-border);border-radius: var(--radius-sm);font-family: var(--font-mono);font-size: var(--text-base);color: var(--color-ink);transition: border-color var(--duration-base) var(--ease-base)}.calc-select{font-family: var(--font-body);appearance: none;cursor: pointer}.calc-input:hover,.calc-select:hover{border-color: var(--color-stone)}.calc-input:focus-visible,.calc-select:focus-visible{border-color: var(--color-stone)}.calc-dose-row{display: flex;gap: var(--space-3);align-items: stretch}.calc-dose-row .calc-input{flex: 1 1 auto}.calc-seg{display: inline-flex;padding: 2px;background-color: var(--color-stone-tint);border: 1px solid var(--color-border);border-radius: var(--radius-sm)}.calc-seg__input{position: absolute;width: 1px;height: 1px;padding: 0;margin: -1px;overflow: hidden;clip: rect(0,0,0,0);white-space: nowrap;border: 0}.calc-seg__label{display: inline-flex;align-items: center;justify-content: center;padding: var(--space-2) var(--space-4);border-radius: var(--radius-sm);font-family: var(--font-body);font-weight: 500;font-size: var(--text-sm);letter-spacing: 0.02em;color: var(--color-ink-soft);cursor: pointer;transition: background-color var(--duration-base) var(--ease-base),color var(--duration-base) var(--ease-base)}.calc-seg__input:checked + .calc-seg__label{background-color: var(--color-stone);color: var(--color-paper)}.calc-seg__input:focus-visible + .calc-seg__label{outline: 2px solid var(--color-ink);outline-offset: 2px}.calc-syringe-select{display: flex;flex-wrap: wrap;gap: var(--space-3)}.calc-syringe-select .calc-seg{flex-direction: column}.calc-chip{display: inline-flex;align-items: center;padding: var(--space-3) var(--space-4);background-color: var(--color-paper);border: 1px solid var(--color-border);border-radius: var(--radius-sm);font-family: var(--font-body);font-weight: 500;font-size: var(--text-sm);color: var(--color-ink);cursor: pointer;transition: border-color var(--duration-base) var(--ease-base),background-color var(--duration-base) var(--ease-base),color var(--duration-base) var(--ease-base)}.calc-chip__u{margin-left: var(--space-2);font-family: var(--font-mono);font-size: var(--text-xs);color: var(--color-ink-soft)}.calc-chip:hover{border-color: var(--color-stone)}.calc-radio:checked + .calc-chip{background-color: var(--color-stone);border-color: var(--color-stone);color: var(--color-paper)}.calc-radio:checked + .calc-chip .calc-chip__u{color: var(--color-paper)}.calc-radio:focus-visible + .calc-chip{outline: 2px solid var(--color-ink);outline-offset: 2px}.calc-radio{position: absolute;width: 1px;height: 1px;padding: 0;margin: -1px;overflow: hidden;clip: rect(0,0,0,0);white-space: nowrap;border: 0}.calc-result{background-color: var(--color-ink);color: var(--color-ink-inverse);padding: var(--space-8);border-radius: var(--radius-md)}@media (min-width: 900px){.calc-result{position: sticky;top: var(--space-8)}}.calc-result__top{display: flex;align-items: baseline;justify-content: space-between;gap: var(--space-4)}.calc-result__label{margin: 0;font-family: var(--font-mono);font-weight: 500;font-size: var(--text-xs);letter-spacing: var(--tracking-label);text-transform: uppercase;color: var(--color-stone)}.calc-result__code{font-family: var(--font-mono);font-weight: 500;font-size: var(--text-sm);letter-spacing: 0.08em;color: var(--color-ink-inverse)}.calc-result__headline{margin: var(--space-2) 0 var(--space-6);min-height: 3.5rem}.calc-result__units{font-family: var(--font-mono);font-weight: 500;font-size: clamp(2.75rem,9vw,4.25rem);line-height: 1;color: var(--color-ink-inverse)}.calc-result__unit-suffix{margin-left: var(--space-2);font-family: var(--font-mono);font-size: var(--text-2xl);color: var(--color-stone)}.calc-result__warning{font-family: var(--font-body);font-weight: 500;font-size: var(--text-base);line-height: 1.5;color: var(--color-error)}.is-hidden{display: none}.calc-syringe{display: block;width: 100%;height: auto;margin-bottom: var(--space-8);overflow: visible}.calc-syringe__barrel{fill: none;stroke: var(--color-border);stroke-width: 1.5}.calc-syringe__metal{fill: var(--color-border)}.calc-syringe__needle{stroke: var(--color-border);stroke-width: 2;stroke-linecap: round}.calc-syringe__tick{stroke: var(--color-border);stroke-width: 1}.calc-syringe__tick-major{stroke-width: 1.5}.calc-syringe__label{fill: var(--color-border);font-family: var(--font-mono);font-size: 15px}.calc-syringe__fill,.calc-syringe__stopper,.calc-syringe__marker{fill: var(--color-stone)}.calc-syringe__rod{stroke: var(--color-stone);stroke-width: 5;stroke-linecap: round}.calc-result.is-over .calc-syringe__fill,.calc-result.is-over .calc-syringe__stopper,.calc-result.is-over .calc-syringe__marker{fill: var(--color-error)}.calc-result.is-over .calc-syringe__rod{stroke: var(--color-error)}.calc-result__grid{display: grid;grid-template-columns: 1fr 1fr;gap: var(--space-6);padding-top: var(--space-6);border-top: 1px solid var(--color-ink-soft)}.calc-metric__value{font-family: var(--font-mono);font-weight: 500;font-size: var(--text-2xl);line-height: 1.1;color: var(--color-ink-inverse)}.calc-metric__label{margin-top: var(--space-2);font-family: var(--font-body);font-weight: 400;font-size: var(--text-xs);letter-spacing: 0.04em;color: var(--color-border)}.calc-result__formula{margin: var(--space-6) 0 0;padding-top: var(--space-6);border-top: 1px solid var(--color-ink-soft);font-family: var(--font-mono);font-size: var(--text-xs);letter-spacing: 0.02em;color: var(--color-border)}.calc-result__disclaimer{margin: var(--space-4) 0 0;font-family: var(--font-body);font-weight: 400;font-size: var(--text-xs);line-height: var(--leading-body);color: var(--color-border)}.calc__foot{max-width: 760px;margin-inline: auto;margin-top: var(--space-24)}.calc__faq-head{display: flex;flex-direction: column;align-items: center;text-align: center;margin-bottom: var(--space-8)}.calc__faq-title{margin: 0;font-family: var(--font-display);font-weight: 700;font-size: clamp(1.5rem,7vw,2.25rem);letter-spacing: 0.04em;text-transform: uppercase;color: var(--color-ink)}.calc__faq-rule{display: block;width: var(--rule-w);height: var(--rule-h);margin-top: var(--space-4);background-color: var(--color-stone)}.accordion__item{border-top: 1px solid var(--color-border)}.accordion__item:last-child{border-bottom: 1px solid var(--color-border)}.accordion__trigger{display: flex;align-items: center;justify-content: space-between;gap: var(--space-4);width: 100%;padding-block: var(--space-4);background: none;border: 0;cursor: pointer;text-align: left;font-family: var(--font-display);font-weight: 700;font-size: var(--text-lg);color: var(--color-ink)}.accordion__chevron{flex: none;width: 16px;height: 16px;color: var(--color-stone);transition: transform var(--duration-base) var(--ease-base)}.accordion__item.is-open .accordion__chevron{transform: rotate(180deg)}.js .accordion__panel{height: 0;overflow: hidden;transition: height var(--duration-slow) var(--ease-out)}.js .accordion__item.is-open .accordion__panel{height: var(--panel-h,auto)}.accordion__panel-inner{padding-bottom: var(--space-6);font-family: var(--font-body);font-weight: 400;font-size: var(--text-base);line-height: var(--leading-body);color: var(--color-ink-soft)}@media (prefers-reduced-motion: reduce){.accordion__panel,.accordion__chevron{transition: none}}