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#232321);--calc-dark-key-line:#141413;--calc-dark-key-ink:#faf9f5;--calc-dark-key-shadow:inset 0 1px 0 #5a5954, 0 1.5px 0 #000;--calc-screen-bg:#f0eee6;--calc-screen-line:#e4e1d6;--calc-screen-ink:#141413;--calc-screen-dim:#5e5d59;--calc-screen-final-bg:#141413;--calc-screen-final-ink:#faf9f5;--calc-clay:#d97757;--calc-clay-soft:#fbf2ec;--calc-clay-line:#f0d9cc;--calc-clay-ink:#b4532e;--calc-clay-strong:#c4633f;--calc-amber-bg:#fbf3e6;--calc-amber-line:#f0ddbb;--calc-amber-ink:#a46a12;--calc-amber-bar:#d9a441;--calc-status:#7c9a5b;--calc-tile-clay:#d97757;--calc-tile-cactus:#bcd1ca;--calc-tile-heather:#cbcadb;--calc-tile-sky:#6a9bcc;--calc-tile-ink:#141413;--calc-row-position:#fcfaf4;--calc-row-value:#fbf2ec;--calc-row-final:#f3eee3;--calc-row-flag:#fbf3e6;--calc-group-row:#f7f5ef;--calc-chart-bar:#d97757;--calc-chart-stroke:#141413;--calc-chart-grid:#1414131f;--calc-chart-axis:#3d3d3a;--calc-art-bg:#d97757;--calc-art-ink:#141413;--calc-art-paper:#faf9f5;--calc-art-screen:#e3dacc;--calc-art-key:#fffefb;--calc-art-shift:#d4a27f;--calc-art-alpha:#ebcece;--calc-art-ring:#14141324;--calc-tk-kw:#f1a585;--calc-tk-fn:#e6c98f;--calc-tk-var:#fff;--calc-tk-num:#b9d3c9;--calc-tk-sym:#c9c7da;--calc-code-dim:#8f8c84;--calc-code-line:#3a3935;--calc-code-meta:#a9a69c;--calc-copy-line:#4a4943;--calc-copy-hover:#2e2d2a;--calc-copy-ok:#bfd7a4;--calc-tki-kw:#a64b28;--calc-tki-fn:#8a5a12;--calc-tki-var:#141413;--calc-tki-num:#2f6b5a;--calc-tki-sym:#5b579a;color:var(--ink);font-family:var(--font-prose);container:calc-root/inline-size}@media (prefers-color-scheme:dark){.calc{--calc-shadow-md:0 1px 2px #0000004d, 0 14px 36px -12px #0009;--calc-key-bg:linear-gradient(#3b3933, #2d2b27);--calc-key-line:#4f4c45;--calc-key-ink:#ece8de;--calc-key-shadow:inset 0 1px 0 #4a4740, 0 1.5px 0 #121110;--calc-shift-bg:linear-gradient(#5a4622, #47371a);--calc-shift-line:#7a6232;--calc-shift-ink:#f5dca6;--calc-shift-shadow:inset 0 1px 0 #6b552b, 0 1.5px 0 #121110;--calc-alpha-bg:linear-gradient(#5c322a, #4a2720);--calc-alpha-line:#7d4639;--calc-alpha-ink:#f6c6bb;--calc-alpha-shadow:inset 0 1px 0 #6d3d33, 0 1.5px 0 #121110;--calc-prog-bg:linear-gradient(#5d3a29, #4b2e20);--calc-prog-line:#80513a;--calc-prog-ink:#f6caae;--calc-prog-shadow:inset 0 1px 0 #6e4632, 0 1.5px 0 #121110;--calc-dark-key-bg:linear-gradient(#f2efe7, #d9d4c7);--calc-dark-key-line:#f2efe7;--calc-dark-key-ink:#1b1a17;--calc-dark-key-shadow:inset 0 1px 0 #fff, 0 1.5px 0 #0c0b0a;--calc-screen-bg:#2d2b27;--calc-screen-line:#45423b;--calc-screen-ink:#f2efe7;--calc-screen-dim:#bdb8ab;--calc-screen-final-bg:#f2efe7;--calc-screen-final-ink:#1b1a17;--calc-clay:#e08a6b;--calc-clay-soft:#e3a17f1a;--calc-clay-line:#e3a17f42;--calc-clay-ink:#eda585;--calc-clay-strong:#e08a6b;--calc-amber-bg:#d9a4411c;--calc-amber-line:#d9a44152;--calc-amber-ink:#e7b75e;--calc-amber-bar:#d9a441;--calc-status:#9cbd78;--calc-tile-clay:#d0704f;--calc-tile-cactus:#a3bdb4;--calc-tile-heather:#b3b2cb;--calc-tile-sky:#6a9bcc;--calc-tile-ink:#141413;--calc-row-position:#ffffff06;--calc-row-value:#e3a17f14;--calc-row-final:#ffffff0f;--calc-row-flag:#d9a4411f;--calc-group-row:#2a2824;--calc-chart-bar:#d0704f;--calc-chart-stroke:#f2efe7;--calc-chart-grid:#f2efe721;--calc-chart-axis:#bdb8ab;--calc-art-bg:#c4673f;--calc-art-ink:#141413;--calc-art-paper:#f2ede2;--calc-art-screen:#d8cdbb;--calc-art-key:#f7f3ea;--calc-art-shift:#cf9d79;--calc-art-alpha:#e2c3c3;--calc-art-ring:#14141333;--calc-code-line:#2f2d2a;--calc-copy-line:#46443e;--calc-copy-hover:#24221f;--calc-tki-kw:#eda585;--calc-tki-fn:#e1c48a;--calc-tki-var:#f2efe7;--calc-tki-num:#a8cbbd;--calc-tki-sym:#c3c0e3}}.calc[lang=en]{--font-prose:Georgia, "Times New Roman", serif;--font-ui:Arial, Helvetica, system-ui, sans-serif}:where(:root[dir=rtl]) .calc,.calc[dir=rtl]{--calc-inline-sign:-1}.calc[dir=ltr]{--calc-inline-sign:1}:where(:root[dir=rtl]) .calc .calc-flip,.calc[dir=rtl] .calc-flip{transform:scaleX(-1)}.calc[dir=ltr] .calc-flip{transform:none}.calc :where(h1,h2,h3,h4,h5,p,ul,ol,dl,dd,figure,pre){margin:0}.calc :where(ul,ol){padding:0}.calc :where(table){border-collapse:collapse}.calc :where(button){font:inherit;color:inherit;cursor:pointer;background:0 0;border:0;padding:0}.calc :where(code,kbd,pre){font-family:var(--font-mono)}.calc :where(h1,h2,h3,h4,h5){color:var(--ink);text-wrap:balance}.calc :where(p,li,dd){text-wrap:pretty}.calc strong{color:var(--ink);font-weight:700}.calc :where(a,button,summary,[tabindex="0"]):focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:6px}.calc [hidden]{display:none!important}.calc-icon{fill:none;stroke:currentColor;stroke-width:1.7px;stroke-linecap:round;stroke-linejoin:round;vertical-align:-.2em;flex:none;width:1.25em;height:1.25em}.calc-icon--sm{width:1.05em;height:1.05em}.calc-mono{font-family:var(--font-mono)}.calc-logo{flex:none;width:36px;height:36px}.calc-logo__tile{fill:var(--calc-art-bg)}.calc-logo__body{fill:var(--calc-art-paper);stroke:var(--calc-art-ink)}.calc-logo__screen{fill:var(--calc-art-ink)}.calc-logo__keys{stroke:var(--calc-art-ink);fill:none}.calc-kicker{color:var(--muted);font-family:var(--font-ui);letter-spacing:.18em;text-transform:uppercase;align-items:center;gap:10px;font-size:.71rem;font-weight:800;display:inline-flex}.calc-kicker__dot,.calc-status-dot{background:var(--calc-clay);border-radius:50%;flex:none;width:8px;height:8px}.calc-status-dot{background:var(--calc-status);box-shadow:0 0 0 3px color-mix(in srgb, var(--calc-status) 22%, transparent)}.calc-label{color:var(--subtle);font-family:var(--font-ui);letter-spacing:.12em;text-transform:uppercase;margin-block-end:16px;font-size:.76rem;font-weight:750}.calc-lead{max-width:40em;color:var(--muted);font-size:clamp(1.04rem,1rem + .3vw,1.2rem);line-height:1.75}.calc-pill{background:var(--surface-muted);color:var(--muted);font-family:var(--font-ui);white-space:nowrap;border-radius:999px;align-items:center;gap:5px;padding:3px 11px;font-size:.76rem;font-weight:700;line-height:1.6;display:inline-flex}.calc-pill--soon{border:1px solid var(--soft-line)}.calc-pill--muted{margin-inline-end:6px}.calc-code-badge{border-radius:var(--calc-radius-sm);background:var(--button-bg);color:var(--button-ink);font:700 .8rem/1 var(--font-mono);letter-spacing:.06em;align-items:center;padding:6px 9px;display:inline-flex}.calc-code-badge--lg{padding:8px 11px;font-size:.95rem}.calc-chips{flex-wrap:wrap;gap:6px;list-style:none;display:flex}.calc-chip{background:var(--surface-muted);color:var(--muted);font-family:var(--font-ui);border-radius:999px;align-items:center;gap:5px;padding:3px 10px;font-size:.76rem;font-weight:600;display:inline-flex}.calc-button{min-height:48px;font-family:var(--font-ui);white-space:nowrap;transition:background-color .2s ease, border-color .2s ease, color .2s ease, transform .2s var(--calc-ease), box-shadow .2s ease;border-radius:999px;justify-content:center;align-items:center;gap:10px;padding:0 22px;font-size:.92rem;font-weight:700;text-decoration:none;display:inline-flex}.calc-button--primary{background:var(--button-bg);color:var(--button-ink);box-shadow:0 10px 24px rgba(var(--shadow-color), .18)}.calc-button--primary:hover{background:var(--button-hover);color:var(--accent-contrast);transform:translateY(-2px)}.calc-button--ghost{border:1px solid var(--line-strong);color:var(--ink)}.calc-button--ghost:hover{background:var(--surface-hover)}.calc-button .calc-icon{transition:translate .3s var(--calc-ease)}.calc-button:hover .calc-icon{translate:calc(3px * var(--calc-inline-sign)) 0}.calc-button--primary:hover .calc-icon{translate:0 3px}.calc-link-arrow{color:var(--accent);font-family:var(--font-ui);align-items:center;gap:6px;font-size:.9rem;font-weight:700;text-decoration:none;display:inline-flex}.calc-link-arrow:hover{text-underline-offset:3px;text-decoration:underline}.calc-tile{color:var(--calc-tile-ink);flex:none;place-items:center;display:inline-grid}.calc-tile--md{border-radius:14px;width:52px;height:52px}.calc-tile--sm{border-radius:11px;width:38px;height:38px}.calc-tile--xs{border-radius:8px;width:26px;height:26px}.calc-tile__icon{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:64%;height:64%}.calc-tile--clay{background:var(--calc-tile-clay)}.calc-tile--cactus{background:var(--calc-tile-cactus)}.calc-tile--heather{background:var(--calc-tile-heather)}.calc-tile--sky{background:var(--calc-tile-sky)}.calc-keys{vertical-align:middle;flex-wrap:wrap;align-items:center;gap:4px;display:inline-flex}.calc-key{border:1px solid var(--calc-key-line);background:var(--calc-key-bg);min-width:2.1em;height:1.9em;box-shadow:var(--calc-key-shadow);color:var(--calc-key-ink);font:600 .76rem/1 var(--font-mono);letter-spacing:.01em;white-space:nowrap;border-radius:7px;justify-content:center;align-items:center;padding:0 .55em;display:inline-flex}.calc-key--num{min-width:1.9em}.calc-key--shift{background:var(--calc-shift-bg);border-color:var(--calc-shift-line);color:var(--calc-shift-ink);box-shadow:var(--calc-shift-shadow)}.calc-key--alpha{background:var(--calc-alpha-bg);border-color:var(--calc-alpha-line);color:var(--calc-alpha-ink);box-shadow:var(--calc-alpha-shadow)}.calc-key--prog{background:var(--calc-prog-bg);border-color:var(--calc-prog-line);color:var(--calc-prog-ink);box-shadow:var(--calc-prog-shadow)}.calc-key--dark{background:var(--calc-dark-key-bg);border-color:var(--calc-dark-key-line);color:var(--calc-dark-key-ink);box-shadow:var(--calc-dark-key-shadow)}.calc-key--arrow{border-radius:999px;min-width:1.9em;padding:0 .4em;position:relative}.calc-key-cell{flex-wrap:wrap;align-items:center;gap:6px 10px;display:flex}.calc-key-note,.calc-key-alt__or{color:var(--subtle);font-family:var(--font-ui);font-size:.8rem}.calc-key-alt{flex-wrap:wrap;align-items:center;gap:6px;display:inline-flex}.calc-code-inline{border:1px solid var(--soft-line);background:var(--surface-muted);color:var(--ink);white-space:nowrap;unicode-bidi:isolate;border-radius:5px;padding:.08em .38em;font-size:.88em}.calc-code-inline--block{white-space:normal;overflow-wrap:anywhere;line-height:1.6;display:inline-block}.calc-code-inline .calc-tk-kw,.calc-group-row__code .calc-tk-kw{color:var(--calc-tki-kw)}.calc-code-inline .calc-tk-fn,.calc-group-row__code .calc-tk-fn{color:var(--calc-tki-fn)}.calc-code-inline .calc-tk-var,.calc-group-row__code .calc-tk-var{color:var(--calc-tki-var);font-weight:700}.calc-code-inline .calc-tk-num,.calc-group-row__code .calc-tk-num{color:var(--calc-tki-num)}.calc-code-inline .calc-tk-sym,.calc-group-row__code .calc-tk-sym{color:var(--calc-tki-sym)}.calc-glyph{background:var(--surface-muted);text-align:center;border-radius:6px;min-width:2.2em;padding:.1em .45em;font-size:.9rem;font-weight:700;display:inline-block}.calc-frac{text-align:center;vertical-align:middle;flex-direction:column;align-items:stretch;margin:0 .2em;font-size:.92em;line-height:1.3;display:inline-flex}.calc-frac__top{border-block-end:1.5px solid;padding:0 .35em .12em}.calc-frac__bottom{padding:.12em .35em 0}.calc-breadcrumb ol{color:var(--subtle);font-family:var(--font-ui);flex-wrap:wrap;align-items:center;gap:4px;font-size:.85rem;list-style:none;display:flex}.calc-breadcrumb li{align-items:center;gap:4px;display:inline-flex}.calc-breadcrumb li+li:before{content:"/";color:var(--line-strong);margin-inline:4px}.calc-breadcrumb a{color:var(--muted);border-radius:4px;text-decoration:none}.calc-breadcrumb a:hover{color:var(--ink);text-underline-offset:3px;text-decoration:underline}.calc-breadcrumb [aria-current]{color:var(--ink);font-weight:700}.calc-hero{grid-template-columns:minmax(0,1fr);align-items:center;gap:clamp(36px,5vw,64px);padding:clamp(48px,8vw,104px) 6px clamp(40px,6vw,72px);display:grid}@container calc-root (width>=880px){.calc-hero{grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr)}}.calc-display{letter-spacing:var(--heading-tracking);margin-block-start:18px;font-size:clamp(2.5rem,1.4rem + 4.2vw,4.6rem);font-weight:760;line-height:1.04}.calc-hero .calc-lead{margin-block-start:24px}.calc-hero__actions{flex-wrap:wrap;gap:12px;margin-block-start:32px;display:flex}.calc-hero__note{color:var(--subtle);font-family:var(--font-ui);align-items:center;gap:10px;margin-block-start:24px;font-size:.85rem;display:flex}.calc-hero__art{justify-self:center;width:100%;max-width:460px}.calc-art{width:100%;height:auto;display:block;overflow:visible}.calc-art__bg{fill:var(--calc-art-bg)}.calc-art__rings circle{stroke:var(--calc-art-ring);stroke-width:2px}.calc-art__body{fill:var(--calc-art-paper);stroke:var(--calc-art-ink);stroke-width:4px}.calc-art__screen{fill:var(--calc-art-screen);stroke:var(--calc-art-ink);stroke-width:3px}.calc-art__glyph{fill:none;stroke:var(--calc-art-ink);stroke-width:4px;stroke-linecap:round}.calc-art__key{fill:var(--calc-art-key);stroke:var(--calc-art-ink);stroke-width:2.6px}.calc-art__key.is-shift{fill:var(--calc-art-shift)}.calc-art__key.is-alpha{fill:var(--calc-art-alpha)}.calc-art__key.is-dark{fill:var(--calc-art-ink)}.calc-art__card{fill:var(--calc-art-paper);stroke:var(--calc-art-ink);stroke-width:4px}.calc-art__dot,.calc-art__spark{fill:var(--calc-art-ink)}.calc-art__whisker,.calc-art__median{fill:none;stroke:var(--calc-art-ink);stroke-width:4px;stroke-linecap:round}.calc-art__box{fill:var(--calc-art-bg);stroke:var(--calc-art-ink);stroke-width:4px}.calc-art__pip{fill:var(--calc-art-paper);stroke:var(--calc-art-ink);stroke-width:3px}.calc-features{padding:8px 6px 64px}.calc-features__grid{grid-template-columns:minmax(0,1fr);gap:16px;list-style:none;display:grid}@container calc-root (width>=700px){.calc-features__grid{grid-template-columns:repeat(3,minmax(0,1fr))}}.calc-feature{border:1px solid var(--soft-line);border-radius:var(--calc-radius-xl);background:var(--card);transition:transform .4s var(--calc-ease), box-shadow .4s ease, background-color .4s ease;padding:26px 26px 28px}.calc-feature:hover{background:var(--card-hover);box-shadow:var(--calc-shadow-md);transform:translateY(-3px)}.calc-feature__icon{border:1px solid var(--soft-line);background:var(--paper-raised);width:44px;height:44px;color:var(--accent);border-radius:12px;place-items:center;display:inline-grid}.calc-feature__icon .calc-icon{width:22px;height:22px}.calc-feature__title{letter-spacing:var(--title-tracking);margin-block-start:18px;font-size:1.2rem}.calc-feature__text{color:var(--muted);margin-block-start:8px;font-size:.97rem;line-height:1.7}.calc-about{border:1px solid var(--soft-line);border-radius:var(--calc-radius-2xl);background:var(--surface-muted);padding:clamp(36px,6vw,64px) clamp(22px,4vw,48px)}.calc-about__title{max-width:22em;letter-spacing:var(--title-tracking);font-size:clamp(1.5rem,1.2rem + 1vw,2rem)}.calc-about__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 32px;margin-block-start:32px;display:grid}@container calc-root (width>=900px){.calc-about__grid{grid-template-columns:repeat(4,minmax(0,1fr))}}.calc-stat{border-block-start:1px solid var(--line-strong);flex-direction:column-reverse;justify-content:flex-end;gap:8px;padding-block-start:18px;display:flex}.calc-stat__value{letter-spacing:var(--title-tracking);font-variant-numeric:tabular-nums;font-size:clamp(2.5rem,2rem + 2vw,3.5rem);font-weight:650;line-height:1}.calc-stat__label{color:var(--muted);font-family:var(--font-ui);font-size:.9rem;line-height:1.5}.calc-catalog{padding:clamp(64px,9vw,104px) 0 0;scroll-margin-top:24px}.calc-section-head{max-width:760px;margin-block-end:36px;padding-inline:6px}.calc-section-title{letter-spacing:var(--heading-tracking);margin-block-start:12px;font-size:clamp(2rem,1.4rem + 2.2vw,3.2rem);line-height:1.1}.calc-section-lead{color:var(--muted);font-size:1.04rem;line-height:var(--prose-leading);margin-block-start:14px}.calc-subject-list{grid-template-columns:minmax(0,1fr);gap:22px;display:grid}.calc-subject{border:1px solid var(--soft-line);border-radius:var(--calc-radius-2xl);background:var(--paper-raised);padding:clamp(22px,3.2vw,36px);scroll-margin-top:24px}.calc-subject__head{flex-wrap:wrap;align-items:center;gap:18px;display:flex}.calc-subject__titles{flex:1;min-width:200px}.calc-subject__title{letter-spacing:var(--title-tracking);font-size:clamp(1.35rem,1.15rem + .8vw,1.75rem)}.calc-subject__title a{text-decoration:none}.calc-subject__title a:hover{color:var(--accent)}.calc-subject__blurb{color:var(--muted);margin-block-start:4px;font-size:.97rem}.calc-subject__more{color:var(--subtle);font-family:var(--font-ui);align-items:center;gap:8px;margin-block-start:22px;font-size:.85rem;display:flex}.calc-topic{border-block-start:1px dashed var(--line-strong);margin-block-start:28px;padding-block-start:24px}.calc-topic__head{flex-wrap:wrap;align-items:baseline;gap:6px 14px;margin-block-end:18px;display:flex}.calc-topic__title{letter-spacing:var(--title-tracking);font-size:1.18rem}.calc-topic__blurb{color:var(--subtle);font-size:.92rem}.calc-program-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:16px;list-style:none;display:grid}.calc-program-card{border:1px solid var(--soft-line);border-radius:var(--calc-radius-xl);background:var(--paper);height:100%;transition:transform .45s var(--calc-ease), box-shadow .45s ease, border-color .45s ease, background-color .45s ease;flex-direction:column;gap:6px;padding:22px 22px 20px;display:flex;position:relative}.calc-program-card:hover{border-color:var(--line-strong);background:var(--paper-raised);box-shadow:var(--calc-shadow-md);transform:translateY(-4px)}.calc-program-card__top{justify-content:space-between;align-items:center;margin-block-end:12px;display:flex}.calc-program-card__go{border:1px solid var(--line-strong);width:34px;height:34px;color:var(--muted);transition:background-color .35s ease, color .35s ease, rotate .45s var(--calc-ease), border-color .35s ease;border-radius:50%;place-items:center;display:inline-grid}.calc-program-card:hover .calc-program-card__go{border-color:var(--button-bg);background:var(--button-bg);color:var(--button-ink);rotate:calc(45deg * var(--calc-inline-sign))}.calc-program-card__title{letter-spacing:var(--title-tracking);font-size:1.25rem;line-height:1.3}.calc-program-card__link{text-decoration:none}.calc-program-card__link:after{content:"";border-radius:inherit;position:absolute;inset:0}.calc-program-card__link:focus-visible{outline:none}.calc-program-card__link:focus-visible:after{outline:2px solid var(--focus);outline-offset:-3px}.calc-program-card__sub{color:var(--accent);font-family:var(--font-ui);font-size:.85rem;font-weight:700}.calc-program-card__text{color:var(--muted);margin-block:4px 12px;font-size:.95rem;line-height:1.65}.calc-program-card .calc-chips{margin-block-start:auto}.calc-soon{margin-block-start:36px}.calc-soon-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));gap:14px;list-style:none;display:grid}.calc-soon-card{border:1px dashed var(--line-strong);border-radius:var(--calc-radius-xl);background:var(--card);grid-template-columns:auto minmax(0,1fr);grid-template-areas:"tile name""tile full""tile pill";align-items:center;gap:2px 14px;padding:18px 20px;transition:background-color .3s,border-color .3s;display:grid;position:relative}.calc-soon-card:hover{border-color:var(--subtle);background:var(--card-hover)}.calc-soon-card .calc-tile{grid-area:tile;align-self:start}.calc-soon-card__name{grid-area:name;font-size:1.12rem;font-weight:700;line-height:1.3;text-decoration:none}.calc-soon-card__name:after{content:"";border-radius:inherit;position:absolute;inset:0}.calc-soon-card__name:focus-visible{outline:none}.calc-soon-card__name:focus-visible:after{outline:2px solid var(--focus);outline-offset:-3px}.calc-soon-card__full{color:var(--subtle);font-family:var(--font-ui);grid-area:full;font-size:.82rem;line-height:1.45}.calc-soon-card .calc-pill{grid-area:pill;justify-self:start;margin-block-start:8px}.calc-subject-page>.calc-breadcrumb{padding-block-start:clamp(28px,5vw,56px)}.calc-page-hero{justify-items:start;gap:14px;padding:28px 6px 8px;display:grid}.calc-page-hero .calc-kicker{margin-block-start:6px}.calc-page-title{letter-spacing:var(--heading-tracking);font-size:clamp(2.2rem,1.4rem + 3vw,3.6rem);line-height:1.1}.calc-subject-programs{margin-block-start:48px}.calc-subject-programs>.calc-topic:first-of-type{border:0;margin-block-start:0;padding-block-start:0}.calc-empty{border:1px dashed var(--line-strong);border-radius:var(--calc-radius-2xl);background:var(--card);justify-items:start;gap:14px;margin-block-start:40px;padding:clamp(24px,4vw,40px);display:grid}.calc-empty__title{letter-spacing:var(--title-tracking);font-size:1.4rem}.calc-empty p{max-width:40em;color:var(--muted);line-height:var(--prose-leading)}.calc-subject-page .calc-soon{margin-block-start:56px}.calc-program{min-width:0}.calc-program-hero{border:1px solid var(--soft-line);border-radius:var(--calc-radius-2xl);background:var(--surface-muted);grid-template-columns:minmax(0,1fr);align-items:center;gap:28px;margin-block-start:clamp(16px,3vw,28px);padding:clamp(22px,4vw,44px);display:grid}@container calc-root (width>=900px){.calc-program-hero{grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:48px}}.calc-program-hero__main{min-width:0}.calc-program-hero__meta{flex-wrap:wrap;align-items:center;gap:12px;margin-block-start:24px;display:flex}.calc-program-hero__where{color:var(--muted);font-family:var(--font-ui);font-size:.88rem;font-weight:700}.calc-program-title{letter-spacing:var(--heading-tracking);margin-block-start:18px;font-size:clamp(2rem,1.4rem + 2.6vw,3.3rem);line-height:1.12}.calc-program-subtitle{color:var(--accent);font-family:var(--font-ui);margin-block-start:10px;font-size:1.05rem;font-weight:700}.calc-program-hero .calc-lead{margin-block-start:16px}.calc-program-hero__actions{flex-wrap:wrap;gap:10px;margin-block-start:26px;display:flex}.calc-program-hero__actions .calc-button{min-height:46px}.calc-program-hero .calc-facts{margin-block-start:22px}.calc-program-hero .calc-facts li{background:var(--paper-raised)}.calc-preview{border:1px solid var(--soft-line);border-radius:var(--calc-radius-xl);background:var(--paper-raised);box-shadow:var(--calc-shadow-md);gap:14px;padding:22px;display:grid}.calc-preview__title{color:var(--muted);font-family:var(--font-ui);letter-spacing:.06em;align-items:center;gap:8px;font-size:.8rem;font-weight:800;display:flex}.calc-preview__list{gap:4px;list-style:none;display:grid}.calc-preview__row{border-radius:var(--calc-radius-sm);background:var(--calc-row-final);font-family:var(--font-prose);grid-template-columns:1.6em minmax(0,1fr);align-items:center;gap:10px;padding:8px 12px;font-size:.98rem;font-weight:600;display:grid}.calc-preview__row.is-position{background:var(--calc-clay-soft);color:var(--calc-clay-ink)}.calc-preview__row.is-final{background:var(--calc-screen-final-bg);color:var(--calc-screen-final-ink)}.calc-preview__n{font:600 .74rem/1 var(--font-mono);opacity:.75}@container calc-root (width<640px){.calc-program-hero{gap:20px}.calc-preview{box-shadow:none;gap:10px;padding:14px 16px}.calc-preview__list{flex-wrap:wrap;gap:6px;display:flex}.calc-preview__row{gap:6px;padding:4px 10px;font-size:.9rem;display:inline-flex}.calc-ptabs__tab{font-size:.94rem}}.calc-ptabs{margin-block-start:clamp(24px,4vw,40px)}.calc-ptabs__bar{z-index:20;border-block-end:1px solid var(--soft-line);background:var(--paper);position:sticky;inset-block-start:0}.calc-ptabs__list{scrollbar-width:none;gap:clamp(14px,3vw,32px);list-style:none;display:flex;overflow-x:auto}.calc-ptabs__list::-webkit-scrollbar{display:none}.calc-ptabs__tab{min-height:54px;color:var(--subtle);font-family:var(--font-ui);white-space:nowrap;align-items:center;gap:8px;padding-inline:2px;font-size:1rem;font-weight:700;text-decoration:none;transition:color .25s;display:inline-flex;position:relative}.calc-ptabs__tab:after{content:"";background:var(--calc-clay);height:3px;transition:transform .35s var(--calc-ease);border-radius:3px 3px 0 0;position:absolute;inset-block-end:-1px;inset-inline:0;transform:scaleX(0)}.calc-ptabs__tab:hover,.calc-ptabs__tab[aria-selected=true]{color:var(--ink)}.calc-ptabs__tab[aria-selected=true]:after{transform:scaleX(1)}.calc-ptabs__tab:focus-visible{outline-offset:-3px}.calc-ptabs__count{background:var(--surface-muted);color:var(--muted);border-radius:999px;padding:1px 8px;font-size:.74rem;font-weight:700}.calc-ptabs__panel{max-width:960px;padding-block-start:36px;scroll-margin-top:64px}.calc-ptabs__panel:focus-visible{outline-offset:6px;border-radius:var(--calc-radius-md)}.calc-ptabs[data-enhanced=false] .calc-ptabs__panel+.calc-ptabs__panel{border-block-start:1px solid var(--soft-line);margin-block-start:64px;padding-block-start:48px}.calc-ptabs[data-enhanced=true] .calc-sec-head{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.calc-ptabs .calc-section{border:0;margin:0;padding:0}.calc-facts{flex-wrap:wrap;gap:8px;margin-block-start:24px;list-style:none;display:flex}.calc-facts li{border:1px solid var(--soft-line);background:var(--surface-muted);color:var(--muted);font-family:var(--font-ui);border-radius:999px;align-items:center;gap:7px;padding:6px 13px;font-size:.84rem;font-weight:600;display:inline-flex}.calc-facts li .calc-icon{color:var(--subtle)}.calc-section{scroll-margin-top:64px}.calc-sec-head{align-items:baseline;gap:16px;margin-block-end:28px;display:flex}.calc-sec-head__num{border:1px solid var(--calc-clay-line);border-radius:var(--calc-radius-sm);background:var(--calc-clay-soft);color:var(--calc-clay-ink);font:600 .9rem/1 var(--font-mono);padding:7px 9px;transform:translateY(-.2em)}.calc-sec-head__title{letter-spacing:var(--heading-tracking);font-size:clamp(1.7rem,1.3rem + 1.5vw,2.4rem);line-height:1.15}.calc-sub-title{letter-spacing:var(--title-tracking);margin:48px 0 12px;font-size:1.3rem}.calc-sub-lead{max-width:46em;color:var(--muted);margin-block-end:18px;font-size:.98rem;line-height:1.7}.calc-sub-lead--wide{max-width:none}.calc-prose{max-width:46em;font-size:1.04rem;line-height:var(--prose-leading)}.calc-prose p+p{margin-block-start:1em}.calc-info-cards{grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:16px;margin-block-start:32px;list-style:none;display:grid}.calc-info-card{border:1px solid var(--soft-line);border-radius:var(--calc-radius-xl);background:var(--paper-raised);padding:22px 22px 24px}.calc-info-card__icon{background:var(--surface-muted);width:40px;height:40px;color:var(--accent);border-radius:11px;place-items:center;display:inline-grid}.calc-info-card__title{letter-spacing:var(--title-tracking);margin-block-start:14px;font-size:1.12rem}.calc-info-card__list{color:var(--muted);margin-block-start:10px;padding-inline-start:1.1em;font-size:.95rem;line-height:1.65;list-style:outside}.calc-info-card__list li+li{margin-block-start:6px}.calc-info-card__list li::marker{color:var(--calc-clay)}.calc-callout__list li::marker{color:var(--calc-clay)}.calc-notes-box li::marker{color:var(--calc-clay)}.calc-duo{grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));align-items:start;gap:16px;margin-block-start:16px;display:grid}.calc-method{border:1px solid var(--soft-line);border-radius:var(--calc-radius-lg);background:var(--surface-muted);padding:22px 24px}.calc-panel-title{letter-spacing:var(--title-tracking);align-items:center;gap:10px;margin-block-end:14px;font-size:1.1rem;display:flex}.calc-panel-title .calc-icon{color:var(--accent)}.calc-method__list{gap:10px;font-size:.96rem;line-height:1.7;list-style:none;display:grid}.calc-method__list li{grid-template-columns:26px minmax(0,1fr);gap:10px;display:grid}.calc-method__n{background:var(--button-bg);width:24px;height:24px;color:var(--button-ink);font:600 .74rem/1 var(--font-mono);border-radius:50%;place-items:center;margin-block-start:.18em;display:grid}.calc-callout{border:1px solid var(--calc-clay-line);border-radius:var(--calc-radius-lg);background:var(--calc-clay-soft);padding:22px 24px}.calc-callout__list{gap:8px;padding-inline-start:1.1em;font-size:.95rem;line-height:1.7;list-style:outside;display:grid}.calc-callout--warn{border-color:var(--calc-amber-line);background:var(--calc-amber-bg);align-items:flex-start;gap:14px;font-size:.98rem;line-height:1.75;display:flex}.calc-callout--warn>.calc-icon{width:22px;height:22px;color:var(--calc-amber-ink);margin-block-start:.2em}.calc-examples{grid-template-columns:minmax(0,1fr);gap:24px;display:grid}.calc-example{border:1px solid var(--soft-line);border-radius:var(--calc-radius-2xl);background:var(--paper-raised);padding:clamp(20px,3.4vw,36px);scroll-margin-top:72px;transition:box-shadow .5s,border-color .5s}.calc-example:has(.calc-steps[open]){border-color:var(--line-strong);box-shadow:var(--calc-shadow-md)}.calc-example__head{flex-wrap:wrap;align-items:center;gap:8px 14px;margin-block-end:18px;display:flex}.calc-example__title{letter-spacing:var(--title-tracking);font-size:1.4rem}.calc-example__question{font-size:1.05rem}.calc-parts{gap:4px;margin-block-start:16px;font-size:1.04rem;line-height:1.7;list-style:none;display:grid}.calc-parts li{grid-template-columns:2.2em minmax(0,1fr);display:grid}.calc-parts__label{font-weight:700}.calc-figure{margin-block-start:18px}.calc-table-scroll{scrollbar-width:thin;max-width:100%;overflow-x:auto}.calc-table-scroll--inline{margin-block-start:10px}.calc-table-scroll:focus-visible{outline-offset:2px}.calc-freq-table,.calc-mini-table{border-collapse:separate;border-spacing:0;font-variant-numeric:tabular-nums}.calc-freq-table{font-size:1rem}.calc-freq-table :is(th,td){border:1px solid var(--ink);text-align:center;padding:10px 16px}.calc-mini-table{font-size:.92rem}.calc-mini-table :is(th,td){border:1px solid var(--line-strong);text-align:center;padding:6px 12px}.calc-freq-table th,.calc-mini-table th{background:var(--surface-muted);text-align:start;white-space:nowrap;font-weight:700}.calc-freq-table td{min-width:3.6em}:is(.calc-freq-table,.calc-mini-table) tr+tr>*{border-block-start:0}:is(.calc-freq-table,.calc-mini-table) :is(th,td)+td{border-inline-start:0}.calc-figure--chart{max-width:560px}.calc-bar-chart{width:100%;height:auto;font-family:var(--font-ui);display:block;overflow:visible}.calc-chart-grid{stroke:var(--calc-chart-grid);stroke-width:1px}.calc-chart-axis{stroke:var(--calc-chart-axis);stroke-width:1.6px}.calc-chart-bar{fill:var(--calc-chart-bar);stroke:var(--calc-chart-stroke);stroke-width:1.6px;transform-box:fill-box;transform-origin:50% 100%}.calc-chart-tick{fill:var(--muted);font-variant-numeric:tabular-nums;font-size:16px}.calc-chart-title{fill:var(--ink);font-size:16px;font-weight:700}@container calc-root (width<560px){.calc-chart-tick,.calc-chart-title{font-size:24px}}.calc-options{grid-template-columns:repeat(auto-fit,minmax(110px,max-content));gap:8px 28px;margin-block-start:20px;font-size:1.04rem;list-style:none;display:grid}.calc-options li{gap:10px;display:flex}.calc-options__letter{font-weight:700}.calc-reveals{border-block-start:1px solid var(--soft-line);gap:2px;margin-block-start:24px;padding-block-start:14px;display:grid}.calc-steps--answer .calc-steps__panel{padding-block:6px 12px;padding-inline-start:34px}.calc-example__run{margin-block-start:18px}.calc-steps__toggle{min-height:40px;color:var(--ink);font-family:var(--font-ui);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:999px;align-items:center;gap:8px;margin-inline-start:-8px;padding-block:0;padding-inline:8px 14px;font-size:.98rem;font-weight:700;list-style:none;transition:background-color .2s;display:inline-flex}.calc-steps__toggle::-webkit-details-marker{display:none}.calc-steps__toggle::marker{content:""}.calc-steps__toggle:hover{background:var(--surface-hover)}.calc-steps__icon{background:var(--button-bg);width:24px;height:24px;color:var(--button-ink);rotate:calc(-90deg * var(--calc-inline-sign));transition:rotate .45s var(--calc-ease), background-color .3s ease;border-radius:50%;place-items:center;display:inline-grid}.calc-steps__icon .calc-icon{stroke-width:2.2px;width:15px;height:15px}.calc-steps[open] .calc-steps__icon{background:var(--calc-clay-strong);color:#fff;rotate:0deg}.calc-solution{grid-template-columns:minmax(0,1fr);gap:14px;padding-block:14px 10px;list-style:none;display:grid}.calc-solution>li{grid-template-columns:30px minmax(0,1fr);gap:12px;font-size:1rem;line-height:1.85;display:grid}.calc-solution__num{border:1.5px solid var(--ink);width:28px;height:28px;font:600 .78rem/1 var(--font-mono);border-radius:50%;place-items:center;margin-block-start:.2em;display:grid}.calc-solution__body{min-width:0}.calc-tip{border:1px solid var(--calc-amber-line);border-radius:var(--calc-radius-md);background:var(--calc-amber-bg);align-items:flex-start;gap:10px;margin-block-start:16px;padding:12px 14px;font-size:.93rem;line-height:1.7;display:flex}.calc-tip .calc-icon{color:var(--calc-amber-ink);margin-block-start:.25em}.calc-tip--program{margin-block:0 14px}.calc-answer-value{font-size:1.1rem}.calc-answer-value strong{font-size:1.2em}.calc-run-summary{border:1px solid var(--soft-line);border-radius:var(--calc-radius-lg);background:var(--surface-muted);margin-block:18px;padding:16px 20px}.calc-run-summary .calc-tip--program{margin-block:12px 0}.calc-seq{grid-template-columns:minmax(0,1fr);gap:8px;display:grid}.calc-seq__row{grid-template-columns:minmax(3.4em,max-content) minmax(0,1fr);align-items:baseline;gap:12px;display:grid}.calc-seq dt{color:var(--subtle);font-family:var(--font-ui);font-size:.82rem;font-weight:700}.calc-seq dd{font:500 .92rem/1.6 var(--font-mono);flex-wrap:wrap;align-items:center;gap:6px;display:flex}.calc-pair{border:1px solid var(--soft-line);background:var(--paper-raised);border-radius:6px;padding:1px 8px;display:inline-flex}.calc-pair__sep{color:var(--subtle);margin-inline-end:.35em}.calc-seq__blank{gap:4px;margin-inline-start:4px;display:inline-flex}.calc-seq__item{align-items:center;gap:6px;display:inline-flex}.calc-seq__val{border-radius:6px;padding:1px 7px}.calc-seq__val.is-value{border:1px solid var(--soft-line);background:var(--paper-raised)}.calc-seq__val.is-final{background:var(--calc-screen-final-bg);color:var(--calc-screen-final-ink);font-weight:700}.calc-seq__arrow{color:var(--subtle);font-size:.85em}.calc-code-block{border:1px solid var(--calc-code-line);border-radius:var(--calc-radius-xl);background:var(--code-bg);color:var(--code-ink);box-shadow:var(--calc-shadow-md);overflow:hidden}.calc-code-block__bar{border-block-end:1px solid var(--calc-code-line);color:var(--calc-code-meta);font-family:var(--font-ui);flex-wrap:wrap;align-items:center;gap:8px 14px;padding-block:12px;padding-inline:20px 14px;font-size:.84rem;display:flex}.calc-code-block__file{color:var(--code-ink);font-family:var(--font-mono);font-weight:500}.calc-code-block__meta{font-family:var(--font-mono)}.calc-copy{border:1px solid var(--calc-copy-line);border-radius:var(--calc-radius-sm);min-height:34px;color:var(--code-ink);font-family:var(--font-ui);align-items:center;gap:7px;margin-inline-start:auto;padding:0 12px;font-size:.84rem;font-weight:700;transition:background-color .2s,border-color .2s,color 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.calc-tk-sym{color:var(--calc-tk-sym)}.calc-note-list{grid-template-columns:minmax(0,1fr);gap:10px;margin-block-start:20px;list-style:none;display:grid}.calc-note-list li{padding-inline-start:22px;font-size:.98rem;line-height:1.85;position:relative}.calc-note-list li:before{content:"";background:var(--calc-clay);border-radius:50%;width:7px;height:7px;position:absolute;inset-block-start:.72em;inset-inline-start:4px}.calc-enter-steps{grid-template-columns:minmax(0,1fr);gap:12px;margin-block-end:18px;list-style:none;display:grid}.calc-enter-steps li{grid-template-columns:32px minmax(0,1fr);gap:12px;line-height:1.95;display:grid}.calc-enter-steps__n{background:var(--button-bg);width:30px;height:30px;color:var(--button-ink);font:600 .8rem/1 var(--font-mono);border-radius:50%;place-items:center;margin-block-start:.12em;display:grid}.calc-table-wrap{border:1px solid 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