@font-face{font-family:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/bricolage-grotesque-vietnamese-opsz-normal.D9N6E8K1.woff2) format("woff2-variations");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:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/bricolage-grotesque-latin-ext-opsz-normal.IcJDqblK.woff2) format("woff2-variations");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:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/bricolage-grotesque-latin-opsz-normal.Cre6nC2_.woff2) format("woff2-variations");unicode-range:U+0000-00FF,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:Figtree Variable;font-style:normal;font-display:swap;font-weight:300 900;src:url(/_astro/figtree-latin-ext-wght-normal.DCwSJGxG.woff2) format("woff2-variations");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:Figtree Variable;font-style:normal;font-display:swap;font-weight:300 900;src:url(/_astro/figtree-latin-wght-normal.D_ZTVpCC.woff2) format("woff2-variations");unicode-range:U+0000-00FF,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:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(data:font/woff2;base64,d09GMgABAAAAAAfsABQAAAAAEAwAAAeCAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGhwbHhwoP0hWQVJbBmA/U1RBVIFiJyYAdC9qEQgKhGSEAAsgADCGCAE2AiQDOgQgBYlMB4EUDAcbLQ4onoexrSC/2ZyLAa8p8VHB8/x3Vue+V0hVJalMJg2nx/TCrQXxBeqLjQG7FyM1WEa/X1tEXN7cFz9EJEMmMUz3RihWSSKeQCbcIou0izz/C8v+fq3VfajEa9gDD11CImXS7qL/RJFVzC1qiB6KmKeD6TZdQ6IRGv78dL6uSVVCfgni5mzu7kcgQBgAEAQTQRCoL++STTYybkJxNfQxAAIAGu8OdEB9teW2jh4BpgDqFjAeSEByW3zFP0CBBgNMsMCGEDjgggdhiEAUAeIIED7ABTDUEnkIE9Q9ahFgKttcVhApo4ACB4qobHaccgDfEjFO6aaWUhjMLt2SyIvHKoDqoA4CSUwEIYQCEjhAO9R1G6keDeDZGjNo+AhxOjCEGTr1WeIF3kYBiLAOKvkJSMiKX0VdAyQt3SDJClCkxJCHkCzfqyVTriJZLcolS32JZHUekq2TYNkYtCtjYHMQXSxGjXDz2t/yLWXzDzxz+o3zFwDEaN23F+13pyMdQAEaSKAR9vcGq4A4MTSKCElGW+M7UcY7xqkggITb28ZJhlqc9q2twYKTt0NjixBgYvO9BIihEBLYuOFXQzfIQ7dXGUEEEgFDooBfAzqiQbpJrhiWSuKJCRFKYbHCyJKI2G5GiZbNAvgAu5pc3vwx4G+g3aDkhklABiSz0BICXrYghtYhx/cdJ+44rY2oZ0aMNRFz3VZjb6W33F3gzltqtOCV8tTHSpOeXuItfvr5lCdfzFpqtEitvqdcdGGFd28ZqqC0tPbeChGXgrIlnhSWu/eUso4uKWFLugyDzQJhflY4659+WjQ++6x72WUMv9G8mw6QJl7BVxX5fe/kpUsOvnZwee9uQ0cGXYd0o89XB2748sDSnt8d2VphdOTTgceDVvOds0v9P/s7HPq15aGun/6Vllb56f1dl0t1LejqrNkpdRZsG8TOnM5vkBG5oiVyVGnS8LHps5cfNWJs6qKPfaNSxiQNBUm3cKNWROr0GSur7Za31k1vieq7LH11VF+jXdRIasRKflc7jkobm1Z9te1IyZA0pDkhLR98+H37Zf1c/8at+dB7x+7GfVyTfJMPiYztsnl59Y5l4j+0n1RXlpHnF3Tq7HecmNF/CJodEMAikruxiyJaGLvHOdAfoA+oDvpjBm2b91cHGRZMU9n25xEU0A8fgEEAdKI3Q1iDtc034sug5YVMkE2jsE+BIkwSoQ3gxXMqz9tELp48bd0cFKOKS7xYjEuXBnZP5ia7DyiO/X/YI+PQSbt2uSdqAkWL9nQbV1XB94/+uPfdZz8dnXYFBYrcTl2SIR/ybxJNJPz/Gupb0JaZeens2ekC7EKr8t+Ls/P5VJPYJdHKyqfg2nqU6bhlidzcddQV/7MmecTzJ5VPcKXkNKSEogHjYFx6QZ7rQ+FSe8njaiNuOnXS8H2ScQ619c2mC3VTtauL0rRbXd/CkSOP37FY9Zkjz8+GibYUMOEWF+RdrFS8Ecv1SHOpPUPZGEIpjPvFyU5cXKjd6OXqorTqy9GwRd++HVufPGnVsW+aO3vggKZ18jR9sXaTC1PWTEsVUaK0FkNySbTQDqlm2PfDjZcu4aalnSLKjnOoYQ0nUlqqXcGpPu/4VgV/xU2pAqW4BW3qzhQ8/hFKhV2qE3+BKAtDqBXjfgnVdH4y0wg5tbVNRenNdTWOrenWLcupQdmsbq5b+18piTe/xRdp1xbILxNPJGInm2z6hoB21Lal0i+ePTtd7B45+3XhFJ329evskXm7qurUVREotqSluSo/L29d3qDhI4YOQqWhI4YNvBNfsMHeXKemXrxQfKeuPOGRVayA3JtkJKEgbPp+dXUDluddutRYLFoXGXWX6N3WFaGLbQtRSitVYNacTNSdy7AaG/HSaUEANcBoGXNdcZvZsOqQ1icBDv21/gzAoYPHH/WDW0qNR3QTYKEAEHig6o13NXbND06CQPlRtYjGNnSktRc09k1mAMDvAlDKfQjgy6fssInlfzmNAjKkDxoxHOBLdVRAIVt9j4qo+hA1w9T1aNBNTUOTTNUHLbqokE+UAfJXCIGw/IxCSL5GRUJeR40rL/UxTm4Q08H6MbCs70ObuNyIIXrINHQYInF06UUlevTjbQzTh5upiDMzMMogUtEnjPs/Y7jAHCJeB0GBHh04tC6FiB6ZFB1oArUSIoFoqhzCeAN6lHwm0T4C3VVPWvjpSMXReuWesMEcoqrmgtNBGd2noWeV0hNAz9rFeShNJxHGsPa3HXeKTk8b55hahySYHaYKKFFLpCfN8rsoaJn01CR04Gkc+5k7KVTCmClX8Q10HCrUEkVlSX+XO33oQR9609tJ516H497WSobWs5Up6TLaS10/dessIskgJSLiDlWvHVUywpkQ7hdPZqGyiEF0uVQerVcPamT1A3eKXdyI1vG9OoflrSXihZ1qqGE3nhmAgiIbRCQgPLEPtOM3UQwTLYaYYomNlpA44opnjV6jkD6id80OOrzf6BzmMD6eEa1zKyeYG1fzfEf16V6jw9XYOaar1/b2kP/IYX8oR2mcFvv2GtBV3JXgd437AQAA) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(/_astro/jetbrains-mono-cyrillic-wght-normal.D73BlboJ.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(/_astro/jetbrains-mono-greek-wght-normal.Bw9x6K1M.woff2) format("woff2-variations");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(/_astro/jetbrains-mono-vietnamese-wght-normal.Bt-aOZkq.woff2) format("woff2-variations");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:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(/_astro/jetbrains-mono-latin-ext-wght-normal.DBQx-q_a.woff2) format("woff2-variations");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:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(/_astro/jetbrains-mono-latin-wght-normal.B9CIFXIH.woff2) format("woff2-variations");unicode-range:U+0000-00FF,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}:root{--bg: #f2f5f9;--surface: #ffffff;--ink: #0e1626;--muted: #536074;--line: #d8dfea;--lane: #1d5bd8;--lane-ink: #ffffff;--lane-soft: #e3ecfc;--reflex: #f5b800;--reflex-ink: #3a2a00;--good: #1a7f45;--bad: #b3261e;--shadow: 0 6px 24px rgba(14, 22, 38, .08);--f-display: "Bricolage Grotesque Variable", "Arial Narrow", Arial, sans-serif;--f-body: "Figtree Variable", Arial, sans-serif;--f-data: "JetBrains Mono Variable", ui-monospace, Menlo, monospace;--r: 14px;--r-lg: 20px;--gutter: 16px;--max: 1120px;--prose: 68ch;--header-h: 58px;color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg: #0b111d;--surface: #131b2b;--ink: #e7ecf5;--muted: #9aa6ba;--line: #24304a;--lane: #6f9bff;--lane-ink: #0b111d;--lane-soft: #18264a;--reflex: #ffd54a;--reflex-ink: #2a1f00;--good: #4cc983;--bad: #ff8a80;--shadow: 0 6px 24px rgba(0, 0, 0, .35);color-scheme:dark}}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 16px)}@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.65 var(--f-body);-webkit-font-smoothing:antialiased;overflow-x:hidden}img,svg{max-width:100%;height:auto}h1,h2,h3,h4{font-family:var(--f-display);line-height:1.08;letter-spacing:-.02em;text-wrap:balance;margin:0}p{margin:0}a{color:var(--lane);text-underline-offset:3px}button,input,select{font:inherit;color:inherit}:focus-visible{outline:3px solid var(--reflex);outline-offset:2px;border-radius:6px}.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--gutter)}.eyebrow{font:700 12px/1 var(--f-data);text-transform:uppercase;letter-spacing:.12em;color:var(--lane);margin:0}.data{font-family:var(--f-data);font-variant-numeric:tabular-nums}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 20px;border-radius:12px;font-weight:700;text-decoration:none;border:0;cursor:pointer;transition:transform .15s ease}.btn:active{transform:scale(.97)}.btn-main{background:var(--lane);color:var(--lane-ink)}.btn-ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line)}section{padding-block:56px}.sec-head{display:grid;gap:10px;margin-bottom:24px;max-width:640px}.sec-head h2{font-size:clamp(30px,7.5vw,52px);font-weight:800}.sec-head p{color:var(--muted);font-size:17px}.prose{max-width:var(--prose)}.prose>*+*{margin-top:1em}.prose h2{font-size:clamp(26px,6vw,36px);margin-top:1.8em}.prose h3{font-size:22px;margin-top:1.5em}.prose h4{font-size:18px;margin-top:1.3em}.prose ul,.prose ol{padding-left:1.3em}.prose li+li{margin-top:.35em}.prose table{border-collapse:collapse;width:100%;font-size:15px}.prose th,.prose td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}.prose th{font-weight:700}.table-scroll{overflow-x:auto}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}.tool{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow)}.tool-grid{display:grid;gap:22px}@media(min-width:860px){.tool-grid{grid-template-columns:1fr 1fr;gap:36px;align-items:start}.tool{padding:28px}}.field{display:grid;gap:8px;margin-bottom:18px}.field-top{display:flex;justify-content:space-between;align-items:baseline;gap:10px}.field label,.field .lbl{font-weight:600;font-size:15px}.field output{font:700 15px/1 var(--f-data);color:var(--lane);font-variant-numeric:tabular-nums}input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:30px;background:transparent;cursor:pointer}input[type=range]::-webkit-slider-runnable-track{height:8px;border-radius:8px;background:linear-gradient(90deg,var(--lane) var(--p, 50%),var(--line) var(--p, 50%))}input[type=range]::-moz-range-track{height:8px;border-radius:8px;background:var(--line)}input[type=range]::-moz-range-progress{height:8px;border-radius:8px;background:var(--lane)}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:28px;height:28px;border-radius:50%;background:var(--surface);border:3px solid var(--lane);margin-top:-10px;box-shadow:0 2px 8px #0003}input[type=range]::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:var(--surface);border:3px solid var(--lane)}.seg{display:flex;flex-wrap:wrap;gap:6px}.seg button{min-height:42px;padding:0 14px;border-radius:10px;border:1px solid var(--line);background:var(--bg);font-weight:600;font-size:14px;cursor:pointer;transition:background .15s,color .15s}.seg button[aria-pressed=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}.num-input{width:100%;min-height:46px;border:1px solid var(--line);border-radius:10px;background:var(--bg);padding:0 12px;font-family:var(--f-data)}.note{font-size:14px;color:var(--muted)}.callout{background:var(--lane-soft);border-radius:12px;padding:14px 16px;font-size:15px}@media(max-width:700px){.prose table{display:block;overflow-x:auto}}.logo[data-astro-cid-tvrurpns]{display:inline-flex;align-items:center;gap:8px;color:var(--ink)}.word[data-astro-cid-tvrurpns]{font:800 21px/1 var(--f-display);letter-spacing:-.03em}.word[data-astro-cid-tvrurpns] b[data-astro-cid-tvrurpns]{color:var(--lane);font-weight:800}.top[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.bar[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:12px}.home[data-astro-cid-3ef6ksr2]{text-decoration:none}ul[data-astro-cid-3ef6ksr2]{list-style:none;margin:0;padding:0}.nav[data-astro-cid-3ef6ksr2]{display:none}.nav[data-astro-cid-3ef6ksr2] ul[data-astro-cid-3ef6ksr2]{display:flex;gap:22px;font-weight:600;font-size:15px}.nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2],.mobile[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{color:var(--ink);text-decoration:none}.nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover,.nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2][aria-current]{color:var(--lane)}.mobile[data-astro-cid-3ef6ksr2]{position:relative}.mobile[data-astro-cid-3ef6ksr2] summary[data-astro-cid-3ef6ksr2]{list-style:none;cursor:pointer;width:44px;height:44px;display:grid;place-content:center;gap:5px;border-radius:10px}.mobile[data-astro-cid-3ef6ksr2] summary[data-astro-cid-3ef6ksr2]::-webkit-details-marker{display:none}.mobile[data-astro-cid-3ef6ksr2] summary[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]{display:block;width:22px;height:2.5px;background:var(--ink);border-radius:2px;transition:transform .2s}.mobile[data-astro-cid-3ef6ksr2][open] summary[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]:nth-child(1){transform:translateY(7.5px) rotate(45deg)}.mobile[data-astro-cid-3ef6ksr2][open] summary[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]:nth-child(2){opacity:0}.mobile[data-astro-cid-3ef6ksr2][open] summary[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}.mobile[data-astro-cid-3ef6ksr2] nav[data-astro-cid-3ef6ksr2]{position:absolute;right:0;top:52px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:8px;min-width:220px}.mobile[data-astro-cid-3ef6ksr2] li[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{display:block;padding:12px 14px;border-radius:10px;font-weight:600}.mobile[data-astro-cid-3ef6ksr2] li[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{background:var(--bg)}.progress[data-astro-cid-3ef6ksr2]{position:absolute;left:0;bottom:-1px;height:3px;width:100%;transform-origin:0 50%;transform:scaleX(0);background:repeating-linear-gradient(90deg,var(--reflex) 0 14px,transparent 14px 22px)}@supports (animation-timeline: scroll()){@media(prefers-reduced-motion:no-preference){.progress[data-astro-cid-3ef6ksr2]{animation:grow linear both;animation-timeline:scroll(root)}@keyframes grow{to{transform:scaleX(1)}}}}@media(min-width:900px){.nav[data-astro-cid-3ef6ksr2]{display:block}.mobile[data-astro-cid-3ef6ksr2]{display:none}}.foot[data-astro-cid-sz7xmlte]{border-top:1px solid var(--line);background:var(--surface);padding-block:40px 24px;margin-top:40px;font-size:15px;color:var(--muted)}.grid[data-astro-cid-sz7xmlte]{display:grid;gap:28px}.about[data-astro-cid-sz7xmlte]{display:grid;gap:12px;max-width:46ch}.small[data-astro-cid-sz7xmlte]{font-size:13px}.head[data-astro-cid-sz7xmlte]{font:700 12px/1 var(--f-data);text-transform:uppercase;letter-spacing:.1em;color:var(--ink);margin-bottom:10px}ul[data-astro-cid-sz7xmlte]{list-style:none;margin:0;padding:0;display:grid;gap:6px}a[data-astro-cid-sz7xmlte]{color:var(--muted)}a[data-astro-cid-sz7xmlte]:hover{color:var(--lane)}.mail[data-astro-cid-sz7xmlte]{user-select:all}.legal[data-astro-cid-sz7xmlte]{margin-top:28px;padding-top:16px;border-top:1px solid var(--line);font-size:13px}@media(min-width:800px){.grid[data-astro-cid-sz7xmlte]{grid-template-columns:2fr 1fr 1fr}}.ad[data-astro-cid-qi7xzqpj]{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin:0 0 14px}.tag[data-astro-cid-qi7xzqpj]{font:700 11px/1 var(--f-data);text-transform:uppercase;letter-spacing:.08em;background:var(--line);color:var(--ink);padding:5px 7px;border-radius:5px}.crumbs[data-astro-cid-ilhxcym7] ol[data-astro-cid-ilhxcym7]{list-style:none;margin:0 0 12px;padding:0;display:flex;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--muted)}.crumbs[data-astro-cid-ilhxcym7] li[data-astro-cid-ilhxcym7]+li[data-astro-cid-ilhxcym7]:before{content:"›";margin-right:6px;color:var(--muted)}.crumbs[data-astro-cid-ilhxcym7] a[data-astro-cid-ilhxcym7]{color:var(--muted)}.skip[data-astro-cid-37fxchfa]{position:absolute;left:12px;top:-60px;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:8px;z-index:100}.skip[data-astro-cid-37fxchfa]:focus{top:12px}.pre[data-astro-cid-37fxchfa]{padding-top:18px}