@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:400;font-stretch:100%;font-display:swap;src:url(/_next/static/media/7b19b489dc6743ba-s.woff2) format("woff2");unicode-range:u+0460-052f,u+1c80-1c8a,u+20b4,u+2de0-2dff,u+a640-a69f,u+fe2e-fe2f}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:400;font-stretch:100%;font-display:swap;src:url(/_next/static/media/28793f5c5e3d822d-s.woff2) format("woff2");unicode-range:u+0301,u+0400-045f,u+0490-0491,u+04b0-04b1,u+2116}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:400;font-stretch:100%;font-display:swap;src:url(/_next/static/media/c9c3823090ec8b55-s.woff2) format("woff2");unicode-range:u+0370-0377,u+037a-037f,u+0384-038a,u+038c,u+038e-03a1,u+03a3-03ff}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:400;font-stretch:100%;font-display:swap;src:url(/_next/static/media/b3bf17a9041d9433-s.woff2) format("woff2");unicode-range:u+0102-0103,u+0110-0111,u+0128-0129,u+0168-0169,u+01a0-01a1,u+01af-01b0,u+0300-0301,u+0303-0304,u+0308-0309,u+0323,u+0329,u+1ea0-1ef9,u+20ab}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:400;font-stretch:100%;font-display:swap;src:url(/_next/static/media/2801417b65625cf5-s.woff2) format("woff2");unicode-range:u+0100-02ba,u+02bd-02c5,u+02c7-02cc,u+02ce-02d7,u+02dd-02ff,u+0304,u+0308,u+0329,u+1d00-1dbf,u+1e00-1e9f,u+1ef2-1eff,u+2020,u+20a0-20ab,u+20ad-20c0,u+2113,u+2c60-2c7f,u+a720-a7ff}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:400;font-stretch:100%;font-display:swap;src:url(/_next/static/media/26d4368bf94c0ec4-s.p.woff2) format("woff2");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:500;font-stretch:100%;font-display:swap;src:url(/_next/static/media/7b19b489dc6743ba-s.woff2) format("woff2");unicode-range:u+0460-052f,u+1c80-1c8a,u+20b4,u+2de0-2dff,u+a640-a69f,u+fe2e-fe2f}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:500;font-stretch:100%;font-display:swap;src:url(/_next/static/media/28793f5c5e3d822d-s.woff2) format("woff2");unicode-range:u+0301,u+0400-045f,u+0490-0491,u+04b0-04b1,u+2116}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:500;font-stretch:100%;font-display:swap;src:url(/_next/static/media/c9c3823090ec8b55-s.woff2) format("woff2");unicode-range:u+0370-0377,u+037a-037f,u+0384-038a,u+038c,u+038e-03a1,u+03a3-03ff}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:500;font-stretch:100%;font-display:swap;src:url(/_next/static/media/b3bf17a9041d9433-s.woff2) format("woff2");unicode-range:u+0102-0103,u+0110-0111,u+0128-0129,u+0168-0169,u+01a0-01a1,u+01af-01b0,u+0300-0301,u+0303-0304,u+0308-0309,u+0323,u+0329,u+1ea0-1ef9,u+20ab}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:500;font-stretch:100%;font-display:swap;src:url(/_next/static/media/2801417b65625cf5-s.woff2) format("woff2");unicode-range:u+0100-02ba,u+02bd-02c5,u+02c7-02cc,u+02ce-02d7,u+02dd-02ff,u+0304,u+0308,u+0329,u+1d00-1dbf,u+1e00-1e9f,u+1ef2-1eff,u+2020,u+20a0-20ab,u+20ad-20c0,u+2113,u+2c60-2c7f,u+a720-a7ff}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:500;font-stretch:100%;font-display:swap;src:url(/_next/static/media/26d4368bf94c0ec4-s.p.woff2) format("woff2");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:600;font-stretch:100%;font-display:swap;src:url(/_next/static/media/7b19b489dc6743ba-s.woff2) format("woff2");unicode-range:u+0460-052f,u+1c80-1c8a,u+20b4,u+2de0-2dff,u+a640-a69f,u+fe2e-fe2f}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:600;font-stretch:100%;font-display:swap;src:url(/_next/static/media/28793f5c5e3d822d-s.woff2) format("woff2");unicode-range:u+0301,u+0400-045f,u+0490-0491,u+04b0-04b1,u+2116}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:600;font-stretch:100%;font-display:swap;src:url(/_next/static/media/c9c3823090ec8b55-s.woff2) format("woff2");unicode-range:u+0370-0377,u+037a-037f,u+0384-038a,u+038c,u+038e-03a1,u+03a3-03ff}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:600;font-stretch:100%;font-display:swap;src:url(/_next/static/media/b3bf17a9041d9433-s.woff2) format("woff2");unicode-range:u+0102-0103,u+0110-0111,u+0128-0129,u+0168-0169,u+01a0-01a1,u+01af-01b0,u+0300-0301,u+0303-0304,u+0308-0309,u+0323,u+0329,u+1ea0-1ef9,u+20ab}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:600;font-stretch:100%;font-display:swap;src:url(/_next/static/media/2801417b65625cf5-s.woff2) format("woff2");unicode-range:u+0100-02ba,u+02bd-02c5,u+02c7-02cc,u+02ce-02d7,u+02dd-02ff,u+0304,u+0308,u+0329,u+1d00-1dbf,u+1e00-1e9f,u+1ef2-1eff,u+2020,u+20a0-20ab,u+20ad-20c0,u+2113,u+2c60-2c7f,u+a720-a7ff}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:600;font-stretch:100%;font-display:swap;src:url(/_next/static/media/26d4368bf94c0ec4-s.p.woff2) format("woff2");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:700;font-stretch:100%;font-display:swap;src:url(/_next/static/media/7b19b489dc6743ba-s.woff2) format("woff2");unicode-range:u+0460-052f,u+1c80-1c8a,u+20b4,u+2de0-2dff,u+a640-a69f,u+fe2e-fe2f}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:700;font-stretch:100%;font-display:swap;src:url(/_next/static/media/28793f5c5e3d822d-s.woff2) format("woff2");unicode-range:u+0301,u+0400-045f,u+0490-0491,u+04b0-04b1,u+2116}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:700;font-stretch:100%;font-display:swap;src:url(/_next/static/media/c9c3823090ec8b55-s.woff2) format("woff2");unicode-range:u+0370-0377,u+037a-037f,u+0384-038a,u+038c,u+038e-03a1,u+03a3-03ff}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:700;font-stretch:100%;font-display:swap;src:url(/_next/static/media/b3bf17a9041d9433-s.woff2) format("woff2");unicode-range:u+0102-0103,u+0110-0111,u+0128-0129,u+0168-0169,u+01a0-01a1,u+01af-01b0,u+0300-0301,u+0303-0304,u+0308-0309,u+0323,u+0329,u+1ea0-1ef9,u+20ab}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:700;font-stretch:100%;font-display:swap;src:url(/_next/static/media/2801417b65625cf5-s.woff2) format("woff2");unicode-range:u+0100-02ba,u+02bd-02c5,u+02c7-02cc,u+02ce-02d7,u+02dd-02ff,u+0304,u+0308,u+0329,u+1d00-1dbf,u+1e00-1e9f,u+1ef2-1eff,u+2020,u+20a0-20ab,u+20ad-20c0,u+2113,u+2c60-2c7f,u+a720-a7ff}@font-face{font-family:IBM Plex Sans;font-style:normal;font-weight:700;font-stretch:100%;font-display:swap;src:url(/_next/static/media/26d4368bf94c0ec4-s.p.woff2) format("woff2");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}@font-face{font-family:IBM Plex Sans Fallback;src:local("Arial");ascent-override:101.32%;descent-override:27.18%;line-gap-override:0.00%;size-adjust:101.17%}.__className_c8daab{font-family:IBM Plex Sans,IBM Plex Sans Fallback;font-style:normal}.__variable_c8daab{--font-plex-sans:"IBM Plex Sans","IBM Plex Sans Fallback"}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(/_next/static/media/58f386aa6b1a2a92-s.woff2) format("woff2");unicode-range:u+0460-052f,u+1c80-1c8a,u+20b4,u+2de0-2dff,u+a640-a69f,u+fe2e-fe2f}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(/_next/static/media/011e180705008d6f-s.woff2) format("woff2");unicode-range:u+0301,u+0400-045f,u+0490-0491,u+04b0-04b1,u+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(/_next/static/media/7ba5fb2a8c88521c-s.woff2) format("woff2");unicode-range:u+0102-0103,u+0110-0111,u+0128-0129,u+0168-0169,u+01a0-01a1,u+01af-01b0,u+0300-0301,u+0303-0304,u+0308-0309,u+0323,u+0329,u+1ea0-1ef9,u+20ab}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(/_next/static/media/92eeb95d069020cc-s.woff2) format("woff2");unicode-range:u+0100-02ba,u+02bd-02c5,u+02c7-02cc,u+02ce-02d7,u+02dd-02ff,u+0304,u+0308,u+0329,u+1d00-1dbf,u+1e00-1e9f,u+1ef2-1eff,u+2020,u+20a0-20ab,u+20ad-20c0,u+2113,u+2c60-2c7f,u+a720-a7ff}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(/_next/static/media/d3ebbfd689654d3a-s.p.woff2) format("woff2");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(/_next/static/media/ef4d5661765d0e49-s.woff2) format("woff2");unicode-range:u+0460-052f,u+1c80-1c8a,u+20b4,u+2de0-2dff,u+a640-a69f,u+fe2e-fe2f}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(/_next/static/media/d29838c109ef09b4-s.woff2) format("woff2");unicode-range:u+0301,u+0400-045f,u+0490-0491,u+04b0-04b1,u+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(/_next/static/media/e40af3453d7c920a-s.woff2) format("woff2");unicode-range:u+0102-0103,u+0110-0111,u+0128-0129,u+0168-0169,u+01a0-01a1,u+01af-01b0,u+0300-0301,u+0303-0304,u+0308-0309,u+0323,u+0329,u+1ea0-1ef9,u+20ab}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(/_next/static/media/99dcf268bda04fe5-s.woff2) format("woff2");unicode-range:u+0100-02ba,u+02bd-02c5,u+02c7-02cc,u+02ce-02d7,u+02dd-02ff,u+0304,u+0308,u+0329,u+1d00-1dbf,u+1e00-1e9f,u+1ef2-1eff,u+2020,u+20a0-20ab,u+20ad-20c0,u+2113,u+2c60-2c7f,u+a720-a7ff}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(/_next/static/media/98e207f02528a563-s.p.woff2) format("woff2");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:700;font-display:swap;src:url(/_next/static/media/704b853f32d191d5-s.woff2) format("woff2");unicode-range:u+0460-052f,u+1c80-1c8a,u+20b4,u+2de0-2dff,u+a640-a69f,u+fe2e-fe2f}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:700;font-display:swap;src:url(/_next/static/media/656feb427634a431-s.woff2) format("woff2");unicode-range:u+0301,u+0400-045f,u+0490-0491,u+04b0-04b1,u+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:700;font-display:swap;src:url(/_next/static/media/991629005c80bdf1-s.woff2) format("woff2");unicode-range:u+0102-0103,u+0110-0111,u+0128-0129,u+0168-0169,u+01a0-01a1,u+01af-01b0,u+0300-0301,u+0303-0304,u+0308-0309,u+0323,u+0329,u+1ea0-1ef9,u+20ab}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:700;font-display:swap;src:url(/_next/static/media/46e154b2fcbd6033-s.woff2) format("woff2");unicode-range:u+0100-02ba,u+02bd-02c5,u+02c7-02cc,u+02ce-02d7,u+02dd-02ff,u+0304,u+0308,u+0329,u+1d00-1dbf,u+1e00-1e9f,u+1ef2-1eff,u+2020,u+20a0-20ab,u+20ad-20c0,u+2113,u+2c60-2c7f,u+a720-a7ff}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:700;font-display:swap;src:url(/_next/static/media/37786be940ec402b-s.p.woff2) format("woff2");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}@font-face{font-family:IBM Plex Mono Fallback;src:local("Arial");ascent-override:76.16%;descent-override:20.43%;line-gap-override:0.00%;size-adjust:134.59%}.__className_05908d{font-family:IBM Plex Mono,IBM Plex Mono Fallback;font-style:normal}.__variable_05908d{--font-plex-mono:"IBM Plex Mono","IBM Plex Mono Fallback"}:root{--ink:#16232e;--ink-soft:#45535f;--ink-faint:#6b7a86;--paper:#fbfaf6;--paper-soft:#f1efe8;--surface:#ffffff;--line:#dcd8cc;--line-strong:#b9b3a3;--blue-700:#083a5c;--blue-600:#0a4a74;--blue-500:#0f5f93;--blue-100:#dbe9f3;--blue-50:#eef5fa;--signal:#b45309;--signal-strong:#92400e;--ok:#1a7f37;--ok-bg:#e9f6ec;--warn:#8a5a00;--err:#a02020;--err-bg:#fbecec;--err-line:#e7bcbc;--font-body:var(--font-plex-sans),-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;--font-mono:var(--font-plex-mono),ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;--s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;--s6:32px;--s7:48px;--s8:64px;--s9:88px;--radius-sm:3px;--radius:5px;--shadow-subtle:0 1px 2px rgb(22 35 46/0.05);--shadow-raised:0 1px 3px rgb(22 35 46/0.08),0 4px 12px rgb(22 35 46/0.06);--container:860px;--header-h:60px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:after,:before{transition-duration:.01ms!important;animation-duration:.01ms!important}}body{margin:0;font-family:var(--font-body);font-size:16.5px;line-height:1.65;color:var(--ink);background:var(--paper);font-feature-settings:"kern";text-rendering:optimizeLegibility}body:before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;background-image:linear-gradient(rgb(10 74 116/.025) 1px,transparent 0),linear-gradient(90deg,rgb(10 74 116/.025) 1px,transparent 0);background-size:32px 32px;-webkit-mask-image:linear-gradient(180deg,rgb(0 0 0/.7),rgb(0 0 0/.25) 640px,transparent 1000px);mask-image:linear-gradient(180deg,rgb(0 0 0/.7),rgb(0 0 0/.25) 640px,transparent 1000px)}.container{max-width:var(--container);margin:0 auto;padding:0 var(--s4);position:relative;z-index:1}h1,h2,h3,h4{font-weight:700;line-height:1.2;letter-spacing:-.015em;color:var(--ink)}h1{font-size:clamp(1.7rem,4.5vw,2.3rem);margin:var(--s3) 0 var(--s3)}h2{font-size:1.35rem;margin:var(--s7) 0 var(--s3)}h3{font-size:1.1rem;margin:var(--s5) 0 var(--s2)}p{margin:0 0 var(--s3)}a{color:var(--blue-600);text-decoration:none}a:hover{color:var(--blue-700);text-decoration:underline;text-underline-offset:2px}code,kbd{font-family:var(--font-mono);font-size:.88em;background:var(--paper-soft);border:1px solid var(--line);border-radius:var(--radius-sm);padding:1px 5px}::selection{background:var(--blue-100);color:var(--blue-700)}:focus-visible{outline:2px solid var(--signal);outline-offset:2px;border-radius:var(--radius-sm)}.formula-block,.results-table,.updated,.vars-table td:first-child{font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.site-header{background:var(--blue-700);border-bottom:3px solid var(--signal);position:-webkit-sticky;position:sticky;top:0;z-index:50}.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:var(--s4);min-height:var(--header-h);flex-wrap:wrap;padding-top:var(--s2);padding-bottom:var(--s2)}.brand{font-weight:700;font-size:1.28rem;letter-spacing:-.025em;display:inline-flex;align-items:center;gap:8px;transition:opacity .12s ease}.brand,.brand:hover{color:#fff;text-decoration:none}.brand:hover{opacity:.92}.brand svg{flex-shrink:0}.brand span{color:#f5b04c}.brand-mark-accent{fill:#f5b04c}.site-nav{display:flex;gap:var(--s1);flex-wrap:wrap}.site-nav a{color:rgb(255 255 255/.85);text-decoration:none;font-size:.92rem;font-weight:500;padding:6px 10px;border-radius:var(--radius);transition:background .12s ease,color .12s ease}.site-nav a:hover{color:#fff;background:rgb(255 255 255/.1);text-decoration:none}.site-footer{border-top:1px solid var(--line);margin-top:var(--s9);padding:var(--s6) 0 var(--s5);background:var(--paper-soft)}.site-footer .container{display:flex;flex-wrap:wrap;gap:var(--s6) var(--s7)}.footer-col{min-width:150px}.footer-col h3{font-size:.75rem;text-transform:uppercase;letter-spacing:.09em;color:var(--ink-faint);margin:0 0 var(--s2)}.footer-col ul{list-style:none;margin:0;padding:0}.footer-col a,.footer-link-btn{color:var(--ink-soft);font-size:.9rem;line-height:2}.footer-link-btn{background:none;border:none;font-family:inherit;padding:0;cursor:pointer;text-decoration:none;transition:color .12s ease}.footer-link-btn:hover{color:var(--blue-600);text-decoration:underline}.footer-brand{max-width:300px}.footer-brand .brand{color:var(--blue-700);font-size:1.15rem;align-items:center}.footer-brand .brand span{color:var(--signal)}.footer-brand .brand-mark-accent{fill:var(--signal)}.footer-brand p{font-size:.88rem;color:var(--ink-faint);margin:var(--s2) 0 0;line-height:1.6}.footer-note{color:var(--ink-faint);font-size:.83rem;margin-top:var(--s6);width:100%;border-top:1px solid var(--line);padding-top:var(--s4)}.breadcrumbs{font-size:.84rem;color:var(--ink-faint);margin:var(--s4) 0 var(--s2)}.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;margin:0;padding:0}.breadcrumbs li+li:before{content:"/";margin-right:6px;color:var(--line-strong)}.breadcrumbs a{color:var(--ink-faint)}.breadcrumbs a:hover{color:var(--blue-600)}.breadcrumbs [aria-current=page]{color:var(--ink-soft);font-weight:500}.summary{color:var(--ink-soft);font-size:1.08rem;margin:0 0 var(--s5);max-width:62ch}.calc-card{background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--blue-600);border-radius:var(--radius);padding:var(--s5);margin:var(--s5) 0;box-shadow:var(--shadow-raised)}.calc-card fieldset{border:0;margin:0;padding:0}.field{margin-bottom:var(--s4)}.field label{display:block;font-weight:600;font-size:.9rem;letter-spacing:.01em;margin-bottom:var(--s1)}.field .help{font-size:.82rem;color:var(--ink-faint);margin:var(--s1) 0 0}.field-row{display:flex;gap:var(--s2);align-items:stretch}input[type=number],input[type=text],select{width:100%;padding:9px 12px;font-family:var(--font-body);font-size:1rem;color:var(--ink);border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);min-height:44px;transition:border-color .12s ease,box-shadow .12s ease}input[type=number]{flex:1 1;min-width:0;font-family:var(--font-mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}input[type=number]:hover,select:hover{border-color:var(--blue-500)}input[type=number]:focus,select:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px var(--blue-100)}.unit-select{width:auto;flex:0 0 auto;min-width:96px;background:var(--paper-soft);font-size:.9rem}.btn{display:inline-block;padding:10px 22px;font-family:var(--font-body);font-size:.95rem;font-weight:600;color:#fff;background:var(--blue-600);border:1px solid var(--blue-700);border-radius:var(--radius-sm);cursor:pointer;min-height:44px;transition:background .12s ease}.btn:active,.btn:hover{background:var(--blue-700)}.btn-secondary{background:var(--surface);color:var(--blue-600);border:1px solid var(--line-strong)}.btn-secondary:hover{background:var(--paper-soft);color:var(--blue-700)}.results{margin-top:var(--s5);background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:var(--s4)}.results h2{margin:0 0 var(--s3);font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-faint);font-weight:700}.results-table{width:100%;border-collapse:collapse}.results-table td,.results-table th{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}.results-table th{font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint)}.results-table td.num{text-align:right;white-space:nowrap;font-family:var(--font-mono);font-weight:500;font-size:.95rem}.results-table tr.primary td{background:linear-gradient(90deg,#fdf3e4,#fdf8ef);border-top:1px solid #eccd9e;border-bottom:1px solid #eccd9e}.results-table tr.primary td:first-child{border-left:3px solid var(--signal);font-weight:600}.results-table tr.primary td.num{font-size:1.12rem;font-weight:700;color:var(--signal-strong)}.results-table .hint{display:block;font-size:.8rem;color:var(--ink-faint);font-weight:400;margin-top:2px}.results-notes{font-size:.88rem;color:var(--ink-soft);margin-top:var(--s3)}.results-notes strong{font-size:.8rem;text-transform:uppercase;letter-spacing:.07em;color:var(--ink-faint)}.results-notes ul{margin:var(--s1) 0 0;padding-left:18px}.results-notes li{margin-bottom:var(--s1)}.error-msg{color:var(--err);background:var(--err-bg);border:1px solid var(--err-line);border-left:3px solid var(--err);border-radius:var(--radius-sm);padding:10px 14px;font-size:.92rem;margin-top:var(--s4)}.prose-section{margin-top:var(--s6)}.prose-section h2{border-top:1px solid var(--line);padding-top:var(--s5)}.formula-block{background:var(--blue-700);color:#dcebf7;border-radius:var(--radius);padding:var(--s3) var(--s4);font-family:var(--font-mono);font-size:.92rem;line-height:1.7;overflow-x:auto;white-space:pre;margin:0 0 var(--s4)}.vars-table{width:100%;border-collapse:collapse;font-size:.93rem}.vars-table td,.vars-table th{border-bottom:1px solid var(--line);padding:var(--s2) var(--s3);text-align:left}.vars-table th{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint);background:var(--paper-soft)}.vars-table td:first-child{font-family:var(--font-mono);color:var(--blue-600);font-weight:500}.example-block{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--blue-600);border-radius:var(--radius-sm);padding:var(--s3) var(--s4);font-size:.95rem}ul.checklist{padding-left:20px}ul.checklist li{margin-bottom:var(--s2)}.ref-list{font-size:.93rem}.ref-list li,details.faq{margin-bottom:var(--s2)}details.faq{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);transition:border-color .12s ease}details.faq[open]{border-color:var(--line-strong)}details.faq summary{cursor:pointer;padding:var(--s3) var(--s4);font-weight:600;font-size:.95rem;list-style-position:inside}details.faq summary:hover{color:var(--blue-600)}details.faq p{color:var(--ink-soft);padding:0 var(--s4) var(--s3);margin:0;font-size:.93rem}.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));grid-gap:var(--s2);gap:var(--s2);margin-top:var(--s3)}.related-card{display:block;border:1px solid var(--line);border-radius:var(--radius);padding:var(--s2) var(--s3);text-decoration:none;color:var(--ink);background:var(--surface);transition:border-color .12s ease,box-shadow .12s ease,transform .12s ease}.related-card:hover{border-color:var(--blue-500);box-shadow:var(--shadow-subtle);transform:translateY(-1px);text-decoration:none}.related-card .name{font-weight:600;font-size:.9rem}.related-card .cat{font-size:.78rem;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.05em}.hero{padding:var(--s7) 0 var(--s5)}.hero h1{margin-bottom:var(--s3)}.hero .summary{font-size:1.15rem}.hero-kicker{display:inline-block;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--blue-600);border:1px solid var(--blue-100);background:var(--blue-50);border-radius:var(--radius-sm);padding:3px 10px;margin-bottom:var(--s3)}.hero-chips{display:flex;flex-wrap:wrap;gap:var(--s2);margin-top:var(--s4)}.hero-chips a{font-family:var(--font-mono);font-size:.82rem;border:1px solid var(--line-strong);background:var(--surface);border-radius:var(--radius-sm);padding:5px 12px;color:var(--ink-soft);transition:border-color .12s ease,color .12s ease}.hero-chips a:hover{border-color:var(--blue-500);color:var(--blue-600);text-decoration:none}.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));grid-gap:var(--s3);gap:var(--s3);margin:var(--s4) 0}.cat-card{position:relative;border:1px solid var(--line);border-radius:var(--radius);padding:var(--s4);text-decoration:none;color:var(--ink);display:block;background:var(--surface);transition:border-color .12s ease,box-shadow .12s ease,transform .12s ease}.cat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--blue-100);border-radius:var(--radius) var(--radius) 0 0;transition:background .12s ease}.cat-card:hover{border-color:var(--blue-500);box-shadow:var(--shadow-raised);transform:translateY(-2px);text-decoration:none}.cat-card:hover:before{background:var(--signal)}.cat-card h3{margin:0 0 var(--s1);font-size:1.02rem}.cat-card p{color:var(--ink-faint);font-size:.86rem;margin:var(--s1) 0 0;line-height:1.55}.tool-count{font-family:var(--font-mono);font-size:.75rem;color:var(--blue-600);font-weight:600;text-transform:uppercase;letter-spacing:.06em}.tool-list{list-style:none;padding:0;margin:var(--s3) 0}.tool-list li{border-bottom:1px solid var(--line)}.tool-list li:first-child{border-top:1px solid var(--line)}.tool-list a{display:block;padding:var(--s3) var(--s2);text-decoration:none;color:var(--ink);transition:background .12s ease}.tool-list a:hover{background:var(--surface);text-decoration:none}.tool-list .name{font-weight:600;color:var(--blue-600)}.tool-list a:hover .name{color:var(--blue-700);text-decoration:underline;text-underline-offset:2px}.tool-list .desc{display:block;font-size:.87rem;color:var(--ink-faint);margin-top:1px}.popular-list{column-count:2;column-gap:var(--s7)}@media (max-width:640px){.popular-list{column-count:1}}.section-kicker{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-faint);margin:var(--s6) 0 var(--s2)}.ad-slot{margin:var(--s5) 0;text-align:center}.ad-label{display:block;font-size:.68rem;text-transform:uppercase;letter-spacing:.14em;color:var(--ink-faint);margin-bottom:var(--s1)}.consent-banner{position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--line-strong);box-shadow:0 -4px 16px rgb(22 35 46/.12);padding:var(--s3) var(--s4);z-index:100}.consent-banner .container{display:flex;flex-wrap:wrap;gap:var(--s3);align-items:center;justify-content:space-between}.consent-banner p{margin:0;font-size:.87rem;color:var(--ink-soft);max-width:560px}.consent-banner .actions{display:flex;gap:var(--s2)}.consent-banner .btn{min-height:40px;padding:8px 18px;font-size:.88rem}.legal-page h2{font-size:1.15rem;margin-top:var(--s5)}.legal-page li,.legal-page p{color:var(--ink-soft);font-size:.96rem}.updated{color:var(--ink-faint);font-size:.82rem;font-family:var(--font-mono);display:inline-block;margin-top:var(--s6);border-top:1px solid var(--line);padding-top:var(--s3)}.guide-tool-lead{font-size:.83rem;text-transform:uppercase;letter-spacing:.09em;color:var(--ink-faint);margin:var(--s4) 0 var(--s1)}.tool-diagram-wrap{margin:var(--s4) 0;padding:var(--s3) var(--s4);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow-x:auto}.tool-diagram-wrap svg{display:block;width:100%;height:auto;max-height:180px}.diagram-label{font-family:var(--font-body);fill:var(--ink-soft);font-weight:500}.tool-directory{margin-top:var(--s4)}.tool-directory-section{margin-bottom:var(--s5)}.tool-directory-intro{color:var(--ink-faint);font-size:.92rem;margin:0 0 var(--s2);max-width:60ch}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}