.calc__presets{display:flex;flex-wrap:wrap;gap:8px;margin-block-end:var(--sp-4)}.calc__preset{display:grid;place-items:center;gap:2px;min-width:74px;min-height:62px;padding:8px 12px;border-radius:var(--r);cursor:pointer;background:rgba(255,255,255,.08);border:2px solid rgba(255,255,255,.18);color:#fff;font:inherit}.calc__preset:hover{background:rgba(255,255,255,.16)}.calc__preset:focus-visible{outline:3px solid var(--orange);outline-offset:2px}.calc__preset.is-on{background:var(--orange);border-color:var(--orange);color:#1b1b1b}.calc__preset-n{font-size:1.15rem;font-weight:800;line-height:1}.calc__preset-u{font-size:.76rem;opacity:.85}.calc__slider{margin-block-end:var(--sp-4)}.calc__big{margin:0 0 6px;font-size:2.4rem;font-weight:800;color:var(--orange);line-height:1.1}.calc__big-u{font-size:1rem;font-weight:700;color:rgba(255,255,255,.75)}.calc__slider input[type=range]{width:100%;height:36px;background:transparent;-webkit-appearance:none;appearance:none;margin:0}.calc__slider input[type=range]::-webkit-slider-runnable-track{height:8px;border-radius:999px;background:rgba(255,255,255,.18)}.calc__slider input[type=range]::-moz-range-track{height:8px;border-radius:999px;background:rgba(255,255,255,.18)}.calc__slider input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:30px;height:30px;margin-top:-11px;border-radius:50%;background:var(--orange);border:3px solid #fff;cursor:pointer}.calc__slider input[type=range]::-moz-range-thumb{width:30px;height:30px;border-radius:50%;background:var(--orange);border:3px solid #fff;cursor:pointer}.calc__slider input[type=range]:focus-visible{outline:3px solid var(--orange);outline-offset:4px}.calc__scale{display:flex;justify-content:space-between;margin:4px 0 0;font-size:.76rem;color:rgba(255,255,255,.55)}.calc__exact,.calc__alt{margin-block-start:10px;background:none;border:0;padding:6px 0;color:var(--orange);font:inherit;font-weight:700;cursor:pointer;border-bottom:2px solid transparent}.calc__exact:hover,.calc__alt:hover{border-bottom-color:var(--orange)}.calc__exact:focus-visible,.calc__alt:focus-visible{outline:3px solid var(--orange);outline-offset:3px}.calc__alt{display:block}.calc__exact-box,.calc__dims{display:grid;gap:10px;margin-block-start:var(--sp-3)}@media (min-width:640px){.calc__dims{grid-template-columns:repeat(3,1fr)}}.calc__field{position:relative;display:block}.calc__field-l{display:block;margin-bottom:6px;font-size:.85rem;color:rgba(255,255,255,.72)}.calc__field input{width:100%;min-height:58px;padding:10px 16px;padding-inline-end:52px;border-radius:var(--r);border:2px solid rgba(255,255,255,.22);background:rgba(255,255,255,.1);color:#fff;font:inherit;font-size:1.35rem;font-weight:800;-moz-appearance:textfield;appearance:textfield}.calc__field input::-webkit-outer-spin-button,.calc__field input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.calc__field input:focus-visible{outline:3px solid var(--orange);outline-offset:1px;border-color:var(--orange)}.calc__field-u{position:absolute;inset-inline-end:16px;bottom:18px;font-size:.9rem;font-weight:700;color:rgba(255,255,255,.7);pointer-events:none}.calc__eq{grid-column:1/-1;margin:0;font-size:1.1rem;font-weight:800;color:var(--orange)}.calc__tanks-l{margin:0 0 8px;font-size:.85rem;color:rgba(255,255,255,.72)}.calc{background:var(--navy);color:#fff;border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--sh-lg);display:grid;gap:22px;max-width:980px;margin-inline:auto}@media (max-width:600px){.calc{padding:20px 16px;border-radius:var(--r)}}.calc__head{display:grid;gap:6px}.calc__title{margin:0;color:#fff;font-size:clamp(1.3rem,2.6vw,1.8rem);line-height:1.35}.calc__sub{margin:0;color:rgba(255,255,255,.72);font-size:.92rem}.calc__step{border:0;margin:0;padding:0;display:grid;gap:12px}.calc__legend{display:flex;align-items:center;gap:10px;font-weight:700;color:#fff;padding:0;margin:0 0 4px}.calc__n{width:26px;height:26px;border-radius:50%;background:var(--orange);color:var(--navy);display:grid;place-items:center;font-weight:800;font-size:.85rem;flex:none}.calc__cards{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}@media (min-width:700px){.calc__cards{grid-template-columns:repeat(3,1fr)}}.calc__card{position:relative;display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:12px 14px;cursor:pointer;min-height:56px}.calc__card input{position:absolute;opacity:0;pointer-events:none}.calc__card-ic{width:32px;height:32px;border-radius:9px;background:rgba(255,255,255,.12);display:grid;place-items:center;color:var(--amber);flex:none}.calc__card-t{font-weight:600;font-size:.92rem;line-height:1.5}.calc__card:hover{border-color:rgba(255,255,255,.45)}.calc__card:has(input:checked){background:var(--orange);border-color:var(--orange);color:var(--navy)}.calc__card:has(input:checked) .calc__card-ic{background:rgba(2,21,87,.14);color:var(--navy)}.calc__card:has(input:focus-visible){outline:2px solid #fff;outline-offset:2px}.calc__why{margin:0;color:rgba(255,255,255,.78);font-size:.88rem;line-height:1.85}.calc__chips{display:flex;flex-wrap:wrap;gap:8px}.calc__chip{position:relative;display:inline-flex;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-pill);padding:.45em 1.1em;cursor:pointer;font-size:.9rem;font-weight:600}.calc__chip input{position:absolute;opacity:0;pointer-events:none}.calc__chip:has(input:checked){background:var(--orange);border-color:var(--orange);color:var(--navy)}.calc__chip:has(input:focus-visible){outline:2px solid #fff;outline-offset:2px}.calc__grid{display:grid;grid-template-columns:1fr;gap:12px}@media (min-width:600px){.calc__grid{grid-template-columns:repeat(2,1fr)}}.calc__row{margin:0;display:grid;gap:6px}.calc__row label{font-size:.85rem;color:rgba(255,255,255,.72)}.calc__row input,.calc__row select{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:12px;padding:.7em .9em;color:#fff;font-size:1.05rem;min-height:48px;width:100%}.calc__row input:focus-visible,.calc__row select:focus-visible{outline:2px solid var(--orange);outline-offset:1px}.calc__row select option{color:var(--ink);background:#fff}.calc__row--mat{max-width:32ch}.calc__hint{margin:0;color:rgba(255,255,255,.68);font-size:.85rem}.calc__submit{margin:0}.calc__out{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--r);padding:18px;display:grid;gap:14px}.calc__area{margin:0;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}.calc__area-label{color:rgba(255,255,255,.72);font-size:.9rem}.calc__area-value{font-size:clamp(1.6rem,4vw,2.3rem);font-weight:800;color:var(--amber)}.calc__facts{margin:0;display:grid;gap:10px;grid-template-columns:1fr}@media (min-width:640px){.calc__facts{grid-template-columns:repeat(3,1fr)}}.calc__facts dt{margin:0;color:rgba(255,255,255,.62);font-size:.78rem}.calc__facts dd{margin:2px 0 0;font-weight:600;line-height:1.7;font-size:.92rem}.calc__exact{margin:0;color:rgba(255,255,255,.68);font-size:.82rem}.calc__cta{margin:4px 0 0;display:flex;flex-wrap:wrap;gap:10px}.calc__cta .btn-ghost{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.45);color:#fff}.calc__cta .btn-ghost:hover{background:#fff;color:var(--navy);border-color:#fff}.calc__note{margin:0;color:rgba(255,255,255,.62);font-size:.82rem;line-height:1.8}