@font-face{font-family:Nunito Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(/_astro/nunito-cyrillic-ext-wght-normal.D4X5GqEv.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:Nunito Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(/_astro/nunito-cyrillic-wght-normal.CY6AOgYE.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Nunito Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(/_astro/nunito-vietnamese-wght-normal.U01xdrZh.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:Nunito Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(/_astro/nunito-latin-ext-wght-normal.CXYtwYOx.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:Nunito Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(/_astro/nunito-latin-wght-normal.BzFMHfZw.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{--bg:#f4f5fa;--surface:#fff;--surface-2:#eceef6;--ink:#1b1f3b;--ink-2:#444a6b;--muted:#6a7090;--line:#d8dbe8;--accent:#e59a12;--accent-strong:#b8730a;--accent-soft:#fdf1da;--ring-track:#e3e6f1;--ring:#3b48c9;--ring-warn:#e59a12;--ring-done:#d64545;--good:#1f8a5b;--bad:#c43c3c;--header-bg:#1b1f3b;--header-ink:#e9ebf7;--radius:14px;--shadow:0 1px 2px #1b1f3b0f, 0 8px 24px #1b1f3b12;--font:"Nunito Variable", ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0e1124;--surface:#171b35;--surface-2:#1f2443;--ink:#eef0fb;--ink-2:#c3c7e2;--muted:#9399bf;--line:#2c3256;--accent:#f2b23a;--accent-strong:#f6c562;--accent-soft:#2e2a1e;--ring-track:#262b4c;--ring:#8b96ff;--ring-warn:#f2b23a;--ring-done:#ff6b6b;--good:#4fd19a;--bad:#ff7b7b;--header-bg:#0a0d1c;--header-ink:#e9ebf7;--shadow:0 1px 2px #0006, 0 8px 24px #0000004d;color-scheme:dark}}:root[data-theme=dark]{--bg:#0e1124;--surface:#171b35;--surface-2:#1f2443;--ink:#eef0fb;--ink-2:#c3c7e2;--muted:#9399bf;--line:#2c3256;--accent:#f2b23a;--accent-strong:#f6c562;--accent-soft:#2e2a1e;--ring-track:#262b4c;--ring:#8b96ff;--ring-warn:#f2b23a;--ring-done:#ff6b6b;--good:#4fd19a;--bad:#ff7b7b;--header-bg:#0a0d1c;--header-ink:#e9ebf7;--shadow:0 1px 2px #0006, 0 8px 24px #0000004d;color-scheme:dark}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{font-family:var(--font);color:var(--ink);background:var(--bg);margin:0;font-size:17px;line-height:1.6}img,svg{max-width:100%}a{color:var(--ring);text-underline-offset:2px}a:hover{color:var(--accent-strong)}h1,h2,h3{text-wrap:balance;line-height:1.2}h1{letter-spacing:-.01em;margin:.15em 0 .3em;font-size:clamp(1.7rem,4.4vw,2.5rem);font-weight:850}h2{margin:1.8em 0 .5em;font-size:1.4rem;font-weight:800}h3{margin:1.3em 0 .35em;font-size:1.1rem;font-weight:800}p{margin:.6em 0}.muted{color:var(--muted)}.small{font-size:.9rem}.wrap{max-width:1080px;padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px));margin:0 auto}.skip{position:absolute;left:-999px}.skip:focus{background:var(--surface);z-index:20;padding:8px;top:8px;left:8px}:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}.site-header{background:var(--header-bg);color:var(--header-ink)}.header-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 18px;padding-block:10px;display:flex}.logo{color:var(--header-ink);letter-spacing:.01em;align-items:center;gap:10px;font-size:1.2rem;font-weight:900;text-decoration:none;display:inline-flex}.logo:hover{color:var(--header-ink)}.logo svg{flex:none;width:34px;height:34px}.logo b{color:var(--accent);font-weight:900}.site-header nav ul{flex-wrap:wrap;gap:2px 16px;margin:0;padding:0;list-style:none;display:flex}.site-header nav a{color:var(--header-ink);opacity:.85;font-size:.95rem;font-weight:700;text-decoration:none}.site-header nav a:hover,.site-header nav a[aria-current]{opacity:1;text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px}.theme-btn{color:var(--header-ink);font:inherit;cursor:pointer;background:0 0;border:1px solid #e9ebf759;border-radius:999px;padding:4px 10px;font-size:.85rem;font-weight:700}.crumbs{color:var(--muted);flex-wrap:wrap;gap:6px;padding-top:14px;font-size:.85rem;display:flex}.crumbs a{color:var(--muted)}main{padding-bottom:56px}.page-head{padding:22px 0 6px}.page-head .lede{color:var(--ink-2);max-width:680px;margin-top:0;font-size:1.1rem}.content{max-width:760px}.content ul,.content ol{padding-left:1.3em}.content li{margin:.25em 0}.grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,210px),1fr));gap:12px;display:grid}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px}a.card{color:var(--ink);text-decoration:none;transition:border-color .15s,transform .15s;display:block}a.card:hover{border-color:var(--ring);transform:translateY(-1px)}a.card h3{margin:0 0 .2em;font-size:1.05rem}a.card p{color:var(--muted);margin:0;font-size:.92rem}.chips{flex-wrap:wrap;gap:8px;margin:.4em 0;padding:0;list-style:none;display:flex}.chips a,.chips button{background:var(--surface);border:1px solid var(--line);color:var(--ink);font:inherit;cursor:pointer;border-radius:999px;min-height:36px;padding:6px 12px;font-size:.92rem;font-weight:700;text-decoration:none;display:inline-block}.chips a:hover,.chips button:hover{border-color:var(--ring)}.chips a[aria-current]{background:var(--ring);border-color:var(--ring);color:#fff}.two-col{grid-template-columns:minmax(0,1fr);gap:28px;display:grid}@media (width>=900px){.two-col{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr)}}.facts{grid-template-columns:max-content 1fr;gap:6px 16px;margin:.6em 0;display:grid}.facts dt{color:var(--muted)}.facts dd{font-variant-numeric:tabular-nums;margin:0;font-weight:700}.table-scroll{overflow-x:auto}table.data{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%;font-size:.95rem}table.data th,table.data td{text-align:left;border-bottom:1px solid var(--line);padding:7px 10px}table.data th{color:var(--muted);font-size:.85rem;font-weight:800}table.data tr.hl td{background:var(--accent-soft);font-weight:800}.btn{border:1px solid var(--line);background:var(--surface);min-height:46px;color:var(--ink);font:inherit;cursor:pointer;border-radius:999px;justify-content:center;align-items:center;gap:6px;padding:0 20px;font-size:1rem;font-weight:800;text-decoration:none;display:inline-flex}.btn:hover{border-color:var(--ring)}.btn.primary{background:var(--ring);border-color:var(--ring);color:#fff;min-width:130px}.btn.primary:hover{filter:brightness(1.08)}.btn.go{background:var(--good);border-color:var(--good);color:#fff}.btn.stop{background:var(--bad);border-color:var(--bad);color:#fff}.btn.ghost{background:0 0}.btn.sm{min-height:38px;padding:0 14px;font-size:.9rem}label{font-size:.92rem;font-weight:700}input,select{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;min-height:42px;padding:8px 10px}input[type=number]{font-variant-numeric:tabular-nums}.field{gap:4px;display:grid}.row{flex-wrap:wrap;align-items:end;gap:10px 14px;display:flex}.tool{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px;margin-top:8px;padding:clamp(16px,3vw,28px)}.face{aspect-ratio:1;width:min(100%,420px);margin:0 auto;position:relative}.face svg.ring{width:100%;height:100%;display:block;transform:rotate(-90deg)}.face .track{stroke:var(--ring-track)}.face .arc{stroke:var(--ring);stroke-linecap:round;transition:stroke .3s}.face[data-warn] .arc{stroke:var(--ring-warn)}.face[data-done] .arc{stroke:var(--ring-done)}.readout{text-align:center;place-content:center;padding:14%;display:grid;position:absolute;inset:0}.digits{font-variant-numeric:tabular-nums;letter-spacing:-.02em;font-size:clamp(2.6rem,13vw,5.4rem);font-weight:850;line-height:1}.digits.long{font-size:clamp(2rem,10vw,4.2rem)}.sub{color:var(--muted);min-height:1.4em;margin-top:8px;font-size:.95rem;font-weight:700}.face[data-done] .digits{color:var(--ring-done);animation:1s steps(2,start) infinite blink}@media (prefers-reduced-motion:reduce){.face[data-done] .digits{animation:none}}@keyframes blink{to{opacity:.25}}.controls{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:16px;display:flex}.set{flex-wrap:wrap;justify-content:center;align-items:end;gap:8px;margin-top:14px;display:flex}.set .field{text-align:center;width:84px}.set input{text-align:center;width:100%;font-size:1.3rem;font-weight:800}.options{color:var(--muted);flex-wrap:wrap;justify-content:center;gap:10px 16px;margin-top:16px;font-size:.92rem;display:flex}.options label{align-items:center;gap:6px;font-weight:700;display:inline-flex}.options select,.options input[type=range]{min-height:36px}.status{text-align:center;color:var(--muted);min-height:1.5em;margin-top:8px;font-weight:800}.tool:fullscreen{background:var(--bg);border:0;border-radius:0;flex-direction:column;justify-content:center;padding:4vh 4vw;display:flex}.tool:fullscreen .face{width:min(80vh,92vw)}.tool:fullscreen .digits{font-size:min(16vh,20vw)}.tool:fullscreen .digits.long{font-size:min(12vh,15vw)}.tool:fullscreen .set,.tool:fullscreen .options,.tool:fullscreen .presets{display:none}.presets{justify-content:center;margin-top:14px}.kbd{color:var(--muted);text-align:center;margin-top:10px;font-size:.82rem}kbd{border:1px solid var(--line);background:var(--surface-2);border-bottom-width:2px;border-radius:6px;padding:1px 6px;font-family:inherit;font-weight:800}.count-grid{text-align:center;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;display:grid}.count-grid div{background:var(--surface-2);border-radius:14px;padding:14px 6px}.count-grid b{font-variant-numeric:tabular-nums;font-size:clamp(1.8rem,8vw,3.6rem);font-weight:900;line-height:1.05;display:block}.count-grid span{color:var(--muted);font-size:.9rem;font-weight:700}.big-answer{margin:0 0 .4em;font-size:clamp(1.3rem,4vw,1.8rem);font-weight:850}.big-answer b{color:var(--ring)}.result{background:var(--surface-2);border-radius:14px;margin-top:14px;padding:14px 16px}.result .big{font-variant-numeric:tabular-nums;font-size:clamp(1.6rem,6vw,2.4rem);font-weight:900;line-height:1.1}.faq details{border-bottom:1px solid var(--line);padding:10px 0}.faq summary{cursor:pointer;font-weight:800}.faq details p{color:var(--ink-2);margin:.5em 0 0}.site-footer{background:var(--header-bg);color:var(--header-ink);margin-top:30px;padding:36px 0 26px}.footer-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,170px),1fr));gap:20px;display:grid}.site-footer a{color:var(--header-ink);opacity:.82;text-decoration:none}.site-footer a:hover{opacity:1;text-decoration:underline}.site-footer ul{gap:4px;margin:0;padding:0;font-size:.92rem;list-style:none;display:grid}.foot-h{text-transform:uppercase;letter-spacing:.08em;opacity:.7;margin:0 0 8px;font-size:.8rem}.fine{opacity:.7;margin-top:22px;font-size:.82rem}.site-footer .muted{color:var(--header-ink);opacity:.75}.tool.pie .face .arc{stroke-linecap:butt}.tool.pie .readout{padding:10px 0 0;position:static}.tool.pie .face{aspect-ratio:auto}.tool.pie .face svg.ring{aspect-ratio:1;height:auto}.content .chips{padding-left:0}.content .chips li{margin:0}