@font-face{font-family:Lexend Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/lexend-vietnamese-wght-normal.RvljkFvg.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Lexend Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/lexend-latin-ext-wght-normal.B6JQhE1e.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:Lexend Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/lexend-latin-wght-normal.ci0D1wrL.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Andika;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/andika-cyrillic-ext-400-normal.VNDy5CZS.woff2)format("woff2"),url(/_astro/andika-cyrillic-ext-400-normal.BJwze9_g.woff)format("woff");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Andika;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/andika-cyrillic-400-normal.DYbdP60f.woff2)format("woff2"),url(/_astro/andika-cyrillic-400-normal.CIdpN1kB.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Andika;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/andika-vietnamese-400-normal.afg23LQ3.woff2)format("woff2"),url(/_astro/andika-vietnamese-400-normal.Bw99zChb.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Andika;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/andika-latin-ext-400-normal.D580Nkki.woff2)format("woff2"),url(/_astro/andika-latin-ext-400-normal.NXfvB_tZ.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:Andika;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/andika-latin-400-normal.BTFTIZb-.woff2)format("woff2"),url(/_astro/andika-latin-400-normal.BK42By1L.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Andika;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/andika-cyrillic-ext-700-normal.DvCsrHON.woff2)format("woff2"),url(/_astro/andika-cyrillic-ext-700-normal.BdIUMeTx.woff)format("woff");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Andika;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/andika-cyrillic-700-normal.D404ywHU.woff2)format("woff2"),url(/_astro/andika-cyrillic-700-normal.Bzg0mZT8.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Andika;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/andika-vietnamese-700-normal.CS3rZngu.woff2)format("woff2"),url(/_astro/andika-vietnamese-700-normal.CZOGxJjV.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Andika;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/andika-latin-ext-700-normal.Ch3SGZaH.woff2)format("woff2"),url(/_astro/andika-latin-ext-700-normal.DBt0PRsd.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:Andika;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/andika-latin-700-normal.Dk95f5lc.woff2)format("woff2"),url(/_astro/andika-latin-700-normal.CAUSQC6x.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--color-ink:#14202e;--color-paper:#f7f9fa;--color-sheet:#fff;--color-tick:#226b52;--color-tick-dark:#174b3a;--color-tick-wash:#e8f2ee;--color-marking:#c23a2e;--color-grid:#dce3e8;--color-line:#cfd8de;--color-desk:#eef2f4;--color-focus:#0b6bc9;--color-secondary:#6b7a87;--font-ui:"Lexend Variable", system-ui, -apple-system, sans-serif;--font-worksheet:"Andika", var(--font-ui);--font-mono:"Spline Sans Mono", ui-monospace, "SFMono-Regular", monospace;--text-xs:.8rem;--text-sm:.9rem;--text-base:1rem;--text-lg:1.25rem;--text-xl:1.563rem;--text-2xl:1.953rem;--text-3xl:2.441rem;--space-1:.5rem;--space-2:1rem;--space-3:1.5rem;--space-4:2rem;--space-6:3rem;--space-8:4rem;--radius-control:5px;--radius-sheet:0;--shadow-lift:0 16px 40px #14202e1a;--shadow-card:0 8px 24px #14202e0f;--header-height:70px;--grid-size:5mm;--grid-line:var(--color-grid)}.page-h1{font-size:clamp(1.75rem, 3.2vw, var(--text-3xl));margin:var(--space-3) 0}.page-content{margin-top:var(--space-6);max-width:46rem}.page-content h2{font-size:var(--text-xl);margin:0 0 var(--space-2)}.intro p{color:var(--color-ink);line-height:1.7}.answers-note{color:var(--color-tick);font-weight:500}.egfrac{white-space:nowrap}.topics{margin-top:var(--space-6)}.topics .lede{color:var(--color-secondary);font-size:var(--text-sm);margin:0 0 var(--space-2)}.faq{margin-top:var(--space-6);border-top:1px solid var(--color-line)}.faq details{border-bottom:1px solid var(--color-line);padding:var(--space-2) 0}.faq summary{cursor:pointer;font-weight:700}.faq p{margin:var(--space-1) 0 0;color:var(--color-secondary)}.related{margin-top:var(--space-6);gap:var(--space-3);flex-wrap:wrap;align-items:baseline;display:flex}.related .muted{color:var(--color-secondary);font-size:var(--text-sm)}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{background:var(--color-paper);color:var(--color-ink);font-family:var(--font-ui);font-size:var(--text-base);-webkit-font-smoothing:antialiased;margin:0;line-height:1.6}a{color:var(--color-tick);text-decoration:none}a:hover{text-decoration:underline}:where(h1,h2,h3){letter-spacing:-.025em;font-weight:700;line-height:1.16}img{max-width:100%;height:auto}:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.001ms!important;animation-duration:.001ms!important}}.skip-link[data-astro-cid-z4jru4n3]{z-index:100;background:var(--color-ink);color:#fff;padding:10px 14px;position:fixed;top:12px;left:12px;transform:translateY(-160%)}.skip-link[data-astro-cid-z4jru4n3]:focus{transform:translateY(0)}.site-header[data-astro-cid-z4jru4n3]{z-index:20;backdrop-filter:blur(10px);border-bottom:1px solid var(--color-grid);background:#f7f9faf5;position:sticky;top:0}.header-inner[data-astro-cid-z4jru4n3]{justify-content:space-between;align-items:center;gap:var(--space-3);max-width:72rem;min-height:var(--header-height);padding:0 var(--space-3);margin:0 auto;display:flex}.wordmark[data-astro-cid-z4jru4n3]{font-family:var(--font-worksheet);font-size:var(--text-xl);color:var(--color-ink);align-items:center;gap:10px;font-weight:700;display:inline-flex}.logo-box[data-astro-cid-z4jru4n3]{background:linear-gradient(var(--color-grid) 1px, transparent 1px), linear-gradient(90deg, var(--color-grid) 1px, transparent 1px), var(--color-sheet);border:1px solid var(--color-line);width:34px;height:34px;color:var(--color-tick);background-size:8px 8px;border-radius:4px;place-items:center;display:grid;box-shadow:2px 2px #14202e14}.logo-box[data-astro-cid-z4jru4n3] svg[data-astro-cid-z4jru4n3]{width:24px;height:24px}.wordmark-dot[data-astro-cid-z4jru4n3]{color:var(--color-tick)}.wordmark[data-astro-cid-z4jru4n3]:hover{text-decoration:none}.site-header[data-astro-cid-z4jru4n3] nav[data-astro-cid-z4jru4n3]{align-items:center;gap:var(--space-3);display:flex}.site-header[data-astro-cid-z4jru4n3] nav[data-astro-cid-z4jru4n3] a[data-astro-cid-z4jru4n3]{color:var(--color-ink);font-size:var(--text-sm)}.site-header[data-astro-cid-z4jru4n3] nav[data-astro-cid-z4jru4n3] a[data-astro-cid-z4jru4n3]:hover{color:var(--color-tick-dark);text-decoration:none}.site-header[data-astro-cid-z4jru4n3] nav[data-astro-cid-z4jru4n3] a[data-astro-cid-z4jru4n3][aria-current=page]{text-decoration:underline;text-decoration-color:var(--color-tick);text-underline-offset:.3em;font-weight:700;text-decoration-thickness:3px}.nav-action[data-astro-cid-z4jru4n3]{border:1px solid var(--color-tick);border-radius:var(--radius-control);color:var(--color-tick-dark);padding:8px 13px;font-weight:600}.nav-action[data-astro-cid-z4jru4n3]:hover{background:var(--color-tick-wash)}main[data-astro-cid-z4jru4n3]{max-width:72rem;padding:0 var(--space-3);margin:0 auto}main[data-astro-cid-z4jru4n3].full-bleed{max-width:none;padding:0}.site-footer[data-astro-cid-z4jru4n3]{max-width:72rem;margin:var(--space-8) auto 0;padding:var(--space-3);color:var(--color-secondary);font-size:var(--text-sm);border-top:1px solid var(--color-line);justify-content:space-between;align-items:baseline;gap:var(--space-1) var(--space-3);flex-wrap:wrap;display:flex}.site-footer[data-astro-cid-z4jru4n3] p[data-astro-cid-z4jru4n3]{margin:0}.site-footer[data-astro-cid-z4jru4n3] nav[data-astro-cid-z4jru4n3]{gap:var(--space-2);display:flex}.site-footer[data-astro-cid-z4jru4n3] nav[data-astro-cid-z4jru4n3] a[data-astro-cid-z4jru4n3]{color:var(--color-secondary)}.site-footer[data-astro-cid-z4jru4n3] nav[data-astro-cid-z4jru4n3] a[data-astro-cid-z4jru4n3]:hover{color:var(--color-ink);text-decoration:none}@media (width<=38.75rem){.header-inner[data-astro-cid-z4jru4n3]{min-height:62px;padding:0 var(--space-2)}.wordmark[data-astro-cid-z4jru4n3]{font-size:var(--text-lg)}.logo-box[data-astro-cid-z4jru4n3]{width:31px;height:31px}.nav-action[data-astro-cid-z4jru4n3]{font-size:var(--text-xs);padding:7px 9px}}