@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-cyrillic-ext-wght-normal.BOeWTOD4.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-cyrillic-wght-normal.DqGufNeO.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-greek-ext-wght-normal.DlzME5K_.woff2)format("woff2-variations");unicode-range:U+1F??}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-greek-wght-normal.CkhJZR-_.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-vietnamese-wght-normal.CBcvBZtf.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:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-latin-ext-wght-normal.DO1Apj_S.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:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-latin-wght-normal.Dx4kXJAl.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:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(data:font/woff2;base64,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)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/plus-jakarta-sans-vietnamese-wght-normal.qRpaaN48.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:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/plus-jakarta-sans-latin-ext-wght-normal.DmpS2jIq.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:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/plus-jakarta-sans-latin-wght-normal.eXO_dkmS.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}:root{--ink:#10213a;--ink-2:#33415c;--muted:#5f6b7e;--line:#e4e8ef;--bg:#fff;--bg-soft:#f5f7fa;--bg-warm:#fbf8f3;--brand:#0b7a57;--brand-700:#075e43;--brand-400:#19a67a;--brand-100:#d3efe3;--brand-50:#ebf7f1;--accent:#e8572a;--accent-50:#fff1eb;--info:#1f55c9;--info-50:#eef3ff;--warn:#a45a06;--warn-50:#fff6e5;--radius-sm:8px;--radius:14px;--radius-lg:22px;--shadow-sm:0 1px 2px #10213a0f, 0 1px 3px #10213a0f;--shadow:0 6px 24px -8px #10213a2e;--shadow-lg:0 22px 50px -20px #10213a4d;--font-sans:"Inter Variable", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-display:"Plus Jakarta Sans Variable", "Inter Variable", system-ui, sans-serif;--container:1200px;--gutter:clamp(16px, 4vw, 32px);--header-h:68px}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 16px)}@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}body{background:var(--bg);color:var(--ink);font-family:var(--font-sans);font-feature-settings:"cv11", "ss01";-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-size:17px;line-height:1.6}img,svg,video{max-width:100%;height:auto;display:block}a{color:var(--brand);text-underline-offset:3px;text-decoration-thickness:1px}a:hover{color:var(--brand-700)}:focus-visible{outline:3px solid var(--brand-400);outline-offset:2px;border-radius:4px}h1,h2,h3,h4{font-family:var(--font-display);color:var(--ink);letter-spacing:-.02em;text-wrap:balance;margin:0;line-height:1.18}p{margin:0}.container{width:100%;max-width:var(--container);padding-inline:var(--gutter);margin-inline:auto}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.skip-link{z-index:100;background:var(--ink);color:#fff;border-radius:var(--radius-sm);padding:10px 16px;font-weight:600;position:absolute;top:-60px;left:16px}.skip-link:focus{color:#fff;top:12px}.btn{cursor:pointer;border:1.5px solid #0000;border-radius:999px;align-items:center;gap:8px;padding:12px 20px;font-size:15px;font-weight:650;line-height:1.2;text-decoration:none;transition:background-color .15s,color .15s,border-color .15s,transform .15s;display:inline-flex}.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-700);color:#fff}.btn-light{color:var(--ink);border-color:var(--line);background:#fff}.btn-light:hover{border-color:var(--ink);color:var(--ink)}.chip{background:var(--brand-50);color:var(--brand-700);letter-spacing:.01em;white-space:nowrap;border-radius:999px;align-items:center;gap:6px;padding:5px 12px;font-size:13px;font-weight:650;text-decoration:none;display:inline-flex}a.chip:hover{background:var(--brand-100);color:var(--brand-700)}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--brand);font-size:13px;font-weight:700;display:inline-block}.section{padding-block:clamp(48px,7vw,88px)}.section-head{flex-wrap:wrap;justify-content:space-between;align-items:end;gap:16px;margin-bottom:28px;display:flex}.section-head h2{font-size:clamp(26px,3.2vw,34px)}.section-head p{color:var(--muted);max-width:60ch;margin-top:8px}.link-arrow{white-space:nowrap;font-weight:650;text-decoration:none}.link-arrow:after{content:" →"}.grid{gap:28px;display:grid}.grid-3{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.page-hero{background:var(--bg-soft);border-bottom:1px solid var(--line);padding-block:clamp(36px,6vw,64px)}.page-hero h1{margin-top:12px;font-size:clamp(32px,4.5vw,48px)}.page-hero p{color:var(--ink-2);max-width:62ch;margin-top:14px;font-size:19px}.prose{color:var(--ink-2);font-size:18px;line-height:1.75}.prose>*+*{margin-top:1.1em}.prose h2{color:var(--ink);margin-top:2.1em;font-size:clamp(24px,2.8vw,30px)}.prose h3{color:var(--ink);margin-top:1.8em;font-size:clamp(20px,2.2vw,23px)}.prose h2+*,.prose h3+*{margin-top:.7em}.prose strong{color:var(--ink);font-weight:650}.prose ul,.prose ol{padding-left:1.3em}.prose li+li{margin-top:.45em}.prose li::marker{color:var(--brand);font-weight:700}.prose blockquote{border-left:3px solid var(--brand-400);margin-inline:0;padding:4px 0 4px 20px;font-style:italic}.prose hr{border:0;border-top:1px solid var(--line);margin-block:2.5em}.prose .table-wrap{-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--radius);overflow-x:auto}.prose table{border-collapse:collapse;width:100%;font-size:15.5px;line-height:1.5}.prose th,.prose td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:12px 14px}.prose thead th{background:var(--ink);color:#fff;font-weight:650;font-family:var(--font-display);white-space:nowrap}.prose tbody tr:nth-child(2n){background:var(--bg-soft)}.prose tbody tr:last-child td{border-bottom:0}.prose code{background:var(--bg-soft);border-radius:6px;padding:2px 6px;font-size:.9em}@media (width<=640px){body{font-size:16px}.prose{font-size:17px}}.calc{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:24px;grid-template-columns:minmax(0,1fr) minmax(0,1fr);display:grid;overflow:hidden}.calc-form{align-content:start;gap:18px;padding:clamp(22px,4vw,36px);display:grid}.calc-row{grid-template-columns:1fr 1fr;gap:14px;display:grid}.field{gap:6px;display:grid}.field label,.field legend{color:var(--ink);padding:0;font-size:14.5px;font-weight:650}.field fieldset{border:0;gap:6px;margin:0;padding:0;display:grid}.field input,.field select{border:1.5px solid var(--line);width:100%;height:48px;font:inherit;color:var(--ink);background:#fff;border-radius:12px;padding:0 14px;font-size:16px}.field input:focus,.field select:focus{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-50);outline:none}.hint{color:var(--muted);font-size:13.5px;line-height:1.5}.segmented{flex-wrap:wrap;gap:6px;display:flex}.segmented label{flex:1;min-width:90px;position:relative}.segmented input{opacity:0;cursor:pointer;height:auto;position:absolute;inset:0}.segmented span{border:1.5px solid var(--line);height:46px;color:var(--ink-2);text-align:center;border-radius:12px;place-items:center;padding:0 12px;font-size:15px;font-weight:600;display:grid}.segmented input:checked+span{border-color:var(--brand);background:var(--brand-50);color:var(--brand-700)}.segmented input:focus-visible+span{box-shadow:0 0 0 4px var(--brand-50)}.calc-result{background:var(--ink);color:#ffffffd1;flex-direction:column;gap:18px;padding:clamp(22px,4vw,36px);display:flex}.calc-result .eyebrow{color:#8fe6c3}.result-main{font-family:var(--font-display);color:#fff;letter-spacing:-.03em;font-size:clamp(36px,5vw,52px);font-weight:800;line-height:1}.result-main small{letter-spacing:0;color:#ffffffb3;margin-left:.3em;font-size:.42em;font-weight:700}.result-sub{font-size:15.5px;line-height:1.55}.result-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.result-cell{background:#ffffff12;border:1px solid #ffffff1a;border-radius:12px;padding:14px}.result-cell b{color:#fff;font-family:var(--font-display);letter-spacing:-.02em;font-size:22px;font-weight:800;display:block}.result-cell span{font-size:13px}.result-note{color:#ffffffa6;border-top:1px solid #ffffff1f;margin-top:auto;padding-top:14px;font-size:13.5px;line-height:1.55}.result-error{color:#ffd7c9;font-weight:600}@media (width<=860px){.calc{grid-template-columns:1fr}}@media (width<=420px){.calc-row,.result-grid{grid-template-columns:1fr}}.logo[data-astro-cid-f7espo7c]{color:var(--ink);flex-shrink:0;align-items:center;gap:10px;text-decoration:none;display:inline-flex}.logo-text[data-astro-cid-f7espo7c]{font-family:var(--font-display);letter-spacing:-.03em;white-space:nowrap;font-size:20px;font-weight:800;line-height:1}.logo-lab[data-astro-cid-f7espo7c]{background:var(--brand-50);color:var(--brand);letter-spacing:0;vertical-align:2px;border-radius:6px;margin-left:6px;padding:3px 7px 4px;font-size:.8em;display:inline-block}.inverted[data-astro-cid-f7espo7c]{color:#fff}.inverted[data-astro-cid-f7espo7c] .logo-lab[data-astro-cid-f7espo7c]{color:#8fe6c3;background:#ffffff1f}.site-header[data-astro-cid-nen7h5rs]{z-index:50;-webkit-backdrop-filter:saturate(160%)blur(10px);border-bottom:1px solid var(--line);background:#fffffff0;position:sticky;top:0}.header-inner[data-astro-cid-nen7h5rs]{height:var(--header-h);align-items:center;gap:24px;display:flex}.main-nav[data-astro-cid-nen7h5rs]{margin-left:auto}.main-nav[data-astro-cid-nen7h5rs] ul[data-astro-cid-nen7h5rs]{gap:2px;margin:0;padding:0;list-style:none;display:flex}.main-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{color:var(--ink-2);white-space:nowrap;border-radius:999px;padding:8px 12px;font-size:15px;font-weight:600;text-decoration:none;display:block}.main-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]:hover{background:var(--bg-soft);color:var(--ink)}.main-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs][aria-current=page]{background:var(--brand-50);color:var(--brand-700)}.header-actions[data-astro-cid-nen7h5rs]{align-items:center;gap:4px;display:flex}.icon-btn[data-astro-cid-nen7h5rs]{width:42px;height:42px;color:var(--ink);cursor:pointer;border-radius:999px;place-items:center;list-style:none;display:grid}.icon-btn[data-astro-cid-nen7h5rs]::-webkit-details-marker{display:none}.icon-btn[data-astro-cid-nen7h5rs]:hover{background:var(--bg-soft);color:var(--ink)}.mobile-menu[data-astro-cid-nen7h5rs],.mobile-menu[data-astro-cid-nen7h5rs] .i-close[data-astro-cid-nen7h5rs],.mobile-menu[data-astro-cid-nen7h5rs][open] .i-open[data-astro-cid-nen7h5rs]{display:none}.mobile-menu[data-astro-cid-nen7h5rs][open] .i-close[data-astro-cid-nen7h5rs]{display:block}.mobile-panel[data-astro-cid-nen7h5rs]{left:0;right:0;top:var(--header-h);border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:8px var(--gutter) 20px;background:#fff;position:absolute}.mobile-panel[data-astro-cid-nen7h5rs] ul[data-astro-cid-nen7h5rs]{margin:0;padding:0;list-style:none}.mobile-panel[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{border-bottom:1px solid var(--line);color:var(--ink);padding:14px 4px;font-size:17px;font-weight:600;text-decoration:none;display:block}.mobile-panel[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs][aria-current=page]{color:var(--brand)}@media (width<=1020px){.main-nav[data-astro-cid-nen7h5rs]{display:none}.header-actions[data-astro-cid-nen7h5rs]{margin-left:auto}.mobile-menu[data-astro-cid-nen7h5rs]{display:block}}.site-footer[data-astro-cid-jo6i4kqk]{background:var(--ink);color:#ffffffb8;margin-top:clamp(56px,8vw,96px);padding-top:56px;font-size:15px}.footer-grid[data-astro-cid-jo6i4kqk]{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;display:grid}.footer-brand[data-astro-cid-jo6i4kqk] p[data-astro-cid-jo6i4kqk]{max-width:38ch;margin-top:16px;line-height:1.6}.footer-title[data-astro-cid-jo6i4kqk]{color:#fff;font-family:var(--font-display);margin-bottom:12px;font-weight:700}ul[data-astro-cid-jo6i4kqk]{margin:0;padding:0;list-style:none}li[data-astro-cid-jo6i4kqk]+li[data-astro-cid-jo6i4kqk]{margin-top:8px}a[data-astro-cid-jo6i4kqk]{color:#fffc;text-decoration:none}a[data-astro-cid-jo6i4kqk]:hover{color:#fff;text-decoration:underline}.footer-bottom[data-astro-cid-jo6i4kqk]{color:#fff9;border-top:1px solid #ffffff1f;margin-top:44px;padding-block:22px;font-size:13.5px}@media (width<=860px){.footer-grid[data-astro-cid-jo6i4kqk]{grid-template-columns:1fr 1fr}.footer-brand[data-astro-cid-jo6i4kqk]{grid-column:1/-1}}