@font-face{font-family:Archivo Variable;font-style:normal;font-display:swap;font-weight:100 900;font-stretch:62% 125%;src:url(/assets/archivo-vietnamese-wdth-normal-rJmnGBSt.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:Archivo Variable;font-style:normal;font-display:swap;font-weight:100 900;font-stretch:62% 125%;src:url(/assets/archivo-latin-ext-wdth-normal-7khWdh9v.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:Archivo Variable;font-style:normal;font-display:swap;font-weight:100 900;font-stretch:62% 125%;src:url(/assets/archivo-latin-wdth-normal-DY7AcnAa.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:Noto Sans Mono;src:url(/fonts/noto-sans-mono-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}:root{--page: #e8eced;--sheet: #fbfcfc;--ink: #15202b;--ink-2: #4a5664;--line: #8f9ba7;--faint: #cbd3da;--red: #da2e1c;--red-text: #b8220f;--display: "Archivo Variable", "Arial Narrow", sans-serif;--body: "Archivo Variable", system-ui, sans-serif;--mono: "Noto Sans Mono", ui-monospace, monospace;color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--page: #11161c;--sheet: #18202a;--ink: #e4eaef;--ink-2: #a3afbb;--line: #6e7b88;--faint: #2c3743;--red: #ff5b45;--red-text: #ff7a66;color-scheme:dark}}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--page);color:var(--ink);font-family:var(--body);font-size:1.0625rem;line-height:1.6;font-variation-settings:"wdth" 100}a{color:inherit}:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:4px}.top,main,.foot{max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px}.top{display:flex;align-items:center;justify-content:space-between;padding-top:20px;padding-bottom:20px}.brand{display:inline-flex;align-items:center;gap:9px;font-family:var(--display);font-variation-settings:"wdth" 118;font-weight:700;font-size:1.15rem;text-decoration:none;letter-spacing:-.01em}.brand svg{width:22px;height:22px}.brand path{fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round}.brand circle{fill:var(--red)}.top-link{font-weight:560;text-decoration:none;padding:6px 2px;border-bottom:1.5px solid var(--faint)}.top-link:hover{border-bottom-color:var(--red)}.hero{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:56px;align-items:center;padding:48px 0 96px}h1{margin:0;font-family:var(--display);font-variation-settings:"wdth" 125;font-weight:740;font-size:clamp(2.4rem,4.9vw,4.25rem);line-height:1.02;letter-spacing:-.025em}.lede{margin:28px 0 0;max-width:34em;font-size:1.2rem;line-height:1.55;color:var(--ink-2)}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}.button{display:inline-flex;align-items:center;min-height:48px;padding:0 22px;border:1.5px solid var(--ink);border-radius:6px;font-weight:600;text-decoration:none;transition:background-color .15s,border-color .15s,color .15s}.button:hover{border-color:var(--red);color:var(--red-text)}.button.primary{background:var(--ink);color:var(--sheet)}.button.primary:hover{background:var(--red);border-color:var(--red);color:#fff}.fine{margin:18px 0 0;font-size:.95rem;color:var(--ink-2)}.sheet{position:relative;margin:0;background:var(--sheet);border-radius:3px;box-shadow:0 0 0 1px var(--faint),0 28px 48px -30px #15202b73}.drawing{display:block;width:100%;height:auto}.drawing *{vector-effect:non-scaling-stroke;fill:none}.drawing text{fill:var(--ink-2);stroke:none;font-family:var(--body);font-variation-settings:"wdth" 85;font-size:6.5px;letter-spacing:.02em}.frame{stroke:var(--ink);stroke-width:1.2px}.centre{stroke:var(--line);stroke-width:.7px;stroke-dasharray:14 3 2 3}.part{stroke:var(--ink);stroke-width:1.6px}.holes-old circle{stroke:var(--ink);stroke-width:1.6px}.holes-new circle{stroke:var(--red);stroke-width:1.8px}.dims,.title-block{stroke:var(--line);stroke-width:.8px}.callout path{stroke:var(--red);stroke-width:.9px}.drawing .callout text{fill:var(--red-text);font-size:7.5px}.ask,.result{position:absolute;left:4.5%;margin:0;font-size:.95rem;background:var(--sheet);border-radius:6px;box-shadow:0 0 0 1px var(--faint),0 10px 24px -14px #15202b80}.ask{top:5.5%;padding:9px 14px;border-left:3px solid var(--ink)}.result{bottom:5.5%;display:flex;align-items:center;gap:14px;padding:8px 10px 8px 14px;border-left:3px solid var(--red)}.fake-btn{padding:2px 10px;border-radius:4px;background:var(--ink);color:var(--sheet);font-weight:600;font-size:.85rem}.fake-btn.quiet{background:none;color:var(--ink-2);padding:2px 4px}@media(prefers-reduced-motion:no-preference){.ask{animation:arrive .45s .5s both}.holes-old circle{animation:retire .4s 1.5s both}.holes-new circle{stroke-dasharray:51 51;animation:draw .5s both}.holes-new circle:nth-child(1){animation-delay:1.75s}.holes-new circle:nth-child(2){animation-delay:1.82s}.holes-new circle:nth-child(3){animation-delay:1.89s}.holes-new circle:nth-child(4){animation-delay:1.96s}.holes-new circle:nth-child(5){animation-delay:2.03s}.holes-new circle:nth-child(6){animation-delay:2.1s}.holes-new circle:nth-child(7){animation-delay:2.17s}.holes-new circle:nth-child(8){animation-delay:2.24s}.callout{animation:appear .35s 2.6s both}.result{animation:arrive .45s 2.9s both}}.holes-old circle{stroke:var(--line);stroke-dasharray:2 2}@keyframes arrive{0%{opacity:0;transform:translateY(8px)}}@keyframes retire{0%{stroke:var(--ink);stroke-dasharray:none}}@keyframes draw{0%{stroke-dashoffset:51}to{stroke-dashoffset:0}}@keyframes appear{0%{opacity:0}}section{padding:72px 0}h2{margin:0 0 40px;font-family:var(--display);font-variation-settings:"wdth" 115;font-weight:680;font-size:clamp(1.75rem,3vw,2.4rem);line-height:1.1;letter-spacing:-.015em}h3{margin:0 0 10px;font-size:1.15rem;font-weight:650;line-height:1.3}.uses{border-top:1.5px solid var(--ink)}.use-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px}.use-grid p,.trust-grid p,.faq p{margin:0;color:var(--ink-2);max-width:36em}.code{margin:48px 0 0;padding:22px 24px;overflow-x:auto;background:var(--sheet);border-left:3px solid var(--ink);border-radius:0 4px 4px 0;font-family:var(--mono);font-size:.9rem;line-height:1.7}.code .c{color:var(--line)}.code .s{color:var(--red-text)}.trust{border-top:1px solid var(--faint)}.trust-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px}.faq{border-top:1px solid var(--faint);max-width:820px}.faq details{border-bottom:1px solid var(--faint)}.faq summary{display:flex;justify-content:space-between;gap:16px;padding:18px 0;font-weight:600;font-size:1.1rem;cursor:pointer;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";font-weight:400;font-size:1.4rem;line-height:1;color:var(--ink-2)}.faq details[open] summary:after{content:"−"}.faq details p{padding:0 0 20px}.end{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;border-top:1.5px solid var(--ink)}.end p{margin:0;font-family:var(--display);font-variation-settings:"wdth" 115;font-weight:680;font-size:clamp(1.5rem,2.6vw,2rem)}.foot{display:flex;justify-content:space-between;padding-top:24px;padding-bottom:40px;font-size:.9rem;color:var(--ink-2)}@media(max-width:900px){.hero{grid-template-columns:minmax(0,1fr);gap:40px;padding:24px 0 64px}.use-grid,.trust-grid{grid-template-columns:minmax(0,1fr);gap:28px}}@media(max-width:560px){.top,main,.foot{padding-left:16px;padding-right:16px}.ask,.result{font-size:.8rem}.ask{padding:6px 10px}.result{gap:8px;padding:5px 8px 5px 10px}section{padding:56px 0}}