@font-face{font-family:Inter;font-style:normal;font-display:swap;font-weight:100 900;src:url(../fonts/inter-latin-wght-normal.woff2)format("woff2")}@font-face{font-family:Space Grotesk;font-style:normal;font-display:swap;font-weight:300 700;src:url(../fonts/space-grotesk-latin-wght-normal.woff2)format("woff2")}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:100 800;src:url(../fonts/jetbrains-mono-latin-wght-normal.woff2)format("woff2")}:root{--font-heading:"Space Grotesk", system-ui, sans-serif;--font-body:"Inter", system-ui, sans-serif;--font-mono:"JetBrains Mono", ui-monospace, monospace;--c-bg:#f5f5f2;--c-surface:#fff;--c-surface-2:#ecece7;--c-text:#1c1f24;--c-text-muted:#545a63;--c-line:#3a3f47;--c-border:#c9cac4;--c-brand:#2f6bff;--c-brand-strong:#1f56e0;--c-brand-text:#1f56e0;--c-on-brand:#fff;--c-ok:#1e7b3a;--c-warn:#8a5a00;--c-bad:#b42318;--c-ok-bg:#e3f2e6;--c-warn-bg:#fff1d6;--c-bad-bg:#fde4e1;--c-focus:#2f6bff;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--c-bg:#14161a;--c-surface:#1c1f24;--c-surface-2:#24282f;--c-text:#eceef1;--c-text-muted:#a7adb6;--c-line:#c9ced6;--c-border:#353a42;--c-brand:#2f6bff;--c-brand-strong:#2659e6;--c-brand-text:#7fa4ff;--c-on-brand:#fff;--c-ok:#6bd08a;--c-warn:#f2c14e;--c-bad:#ff8a7a;--c-ok-bg:#15301e;--c-warn-bg:#352a10;--c-bad-bg:#3a1714;--c-focus:#7fa4ff;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}:root[data-theme=dark]{--c-bg:#14161a;--c-surface:#1c1f24;--c-surface-2:#24282f;--c-text:#eceef1;--c-text-muted:#a7adb6;--c-line:#c9ced6;--c-border:#353a42;--c-brand:#2f6bff;--c-brand-strong:#2659e6;--c-brand-text:#7fa4ff;--c-on-brand:#fff;--c-ok:#6bd08a;--c-warn:#f2c14e;--c-bad:#ff8a7a;--c-ok-bg:#15301e;--c-warn-bg:#352a10;--c-bad-bg:#3a1714;--c-focus:#7fa4ff;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--c-bg);color:var(--c-text);font-family:var(--font-body);margin:0;line-height:1.6;overflow-x:hidden}h1,h2,h3,h4{font-family:var(--font-heading);margin:0 0 .5em;line-height:1.2}h1{font-size:calc(clamp(1.9rem,5vw,3rem))}h2{font-size:calc(clamp(1.4rem,3.5vw,1.9rem))}p{margin:0 0 1em}a{color:var(--c-brand-text)}code,pre{font-family:var(--font-mono)}img,svg{max-width:100%}:focus-visible{outline:3px solid var(--c-focus);outline-offset:2px}.container{width:100%;max-width:72rem;margin-inline:auto;padding-inline:16px}@media (width>=48rem){.container{padding-inline:24px}}.btn{border:2px solid var(--c-brand-strong);background:var(--c-brand-strong);color:var(--c-on-brand);font:inherit;cursor:pointer;border-radius:6px;min-height:44px;padding:.75rem 1.25rem;font-weight:600;text-decoration:none;display:inline-block}.notice{background:var(--c-warn-bg);color:var(--c-text);border-left:4px solid var(--c-warn);margin-bottom:1.5rem;padding:.75rem 1rem}.skip-link{background:var(--c-surface);z-index:10;padding:.5rem 1rem;position:absolute;top:0;left:-999px}.skip-link:focus{top:8px;left:8px}.btn.ghost{color:var(--c-text);border-color:var(--c-border);background:0 0}.btn:disabled{opacity:.5;cursor:not-allowed}.lead{color:var(--c-text-muted);max-width:44rem;font-size:1.1rem}.narrow,.prose{max-width:46rem}.cards{grid-template-columns:repeat(auto-fill,minmax(min(100%,16rem),1fr));gap:1rem;margin:1rem 0 2rem;padding:0;list-style:none;display:grid}.card h2,.card h3{margin:0;font-size:1.15rem}.card p{color:var(--c-text-muted);margin:0;font-size:.95rem}.card a.stretch{color:var(--c-text);text-decoration:none}.card a.stretch:after{content:"";position:absolute;inset:0}.card{border:1px solid var(--c-border);background:var(--c-surface);border-radius:8px;flex-direction:column;gap:.5rem;height:100%;padding:1rem 1.1rem;display:flex;position:relative}.card:hover{border-color:var(--c-brand)}.card:focus-within{outline:3px solid var(--c-focus);outline-offset:2px}.card .go{color:var(--c-brand-text);margin-top:auto;font-weight:600}.badge{border:2px solid;border-radius:999px;align-items:center;gap:.4rem;padding:.15rem .65rem;font-size:.85rem;font-weight:700;display:inline-flex}.badge.b-self_tested{color:var(--c-ok);background:var(--c-ok-bg)}.badge.b-source{color:var(--c-brand-text);background:var(--c-surface-2)}.badge.b-assumption{color:var(--c-warn);background:var(--c-warn-bg)}.badge.b-warn{color:var(--c-bad);background:var(--c-bad-bg)}.meta{color:var(--c-text-muted);flex-wrap:wrap;align-items:center;gap:.35rem 1.25rem;margin:0 0 1.5rem;padding:0;font-size:.95rem;list-style:none;display:flex}.banner,.meta strong{color:var(--c-text)}.prose h2{margin-top:1.75em}.prose h3{margin-top:1.4em;font-size:1.2rem}.prose ol,.prose ul{margin:0 0 1em;padding-left:1.4rem}.prose li{margin-bottom:.25em}.prose img{height:auto}.tw{border:1px solid var(--c-border);max-width:100%;margin:0 0 1.25em;overflow-x:auto}.tw:focus-visible{outline:3px solid var(--c-focus)}.tw table{border-collapse:collapse;min-width:100%;font-size:.95rem}.tw td,.tw th{text-align:left;vertical-align:top;border-bottom:1px solid var(--c-border);padding:.5rem .75rem}.tw th{background:var(--c-surface-2)}.banner{background:var(--c-bad-bg);border-left:6px solid var(--c-bad);margin:0 0 1.5rem;padding:.9rem 1.1rem}.banner strong{color:var(--c-bad);font-size:1.1rem;display:block}.banner p{margin:.25rem 0 0}.cta,.section{margin-block:2rem}.cta{background:var(--c-surface-2);border:1px solid var(--c-border);border-radius:8px;padding:1.25rem}.cta h2{font-size:1.3rem}.cta p{max-width:40rem}.sources{padding-left:1.2rem}.sources li{margin-bottom:.35rem}.form{gap:1rem;max-width:34rem;display:grid}.field{gap:.3rem;display:grid}.field>.lab,.field>label,legend{font-weight:600}.field .hint{color:var(--c-text-muted);font-size:.9rem}input[type=number],input[type=text],select{font:inherit;color:var(--c-text);background:var(--c-surface);border:2px solid var(--c-border);border-radius:6px;width:100%;max-width:100%;min-height:44px;padding:.55rem .7rem}input:focus-visible,select:focus-visible{outline:3px solid var(--c-focus);outline-offset:1px;border-color:var(--c-brand)}fieldset{border:0;margin:0;padding:0}.row{flex-wrap:wrap;gap:.75rem 1rem;display:flex}.row>.field{flex:9rem}.check{align-items:center;gap:.6rem;min-height:44px;font-weight:600;display:flex}.check input{width:1.4rem;height:1.4rem;accent-color:var(--c-brand-strong)}.radios{gap:.25rem;display:grid}.radios label{align-items:center;gap:.6rem;min-height:44px;display:flex}.radios input{width:1.3rem;height:1.3rem;accent-color:var(--c-brand-strong)}.result{background:var(--c-surface);border:2px solid var(--c-brand);border-radius:8px;max-width:40rem;margin-block:1.5rem;padding:1rem 1.25rem}.result .big{font-family:var(--font-heading);margin:0 0 .5rem;font-size:1.6rem;font-weight:700}.result p:last-child{margin-bottom:0}.small{color:var(--c-text-muted);font-size:.9rem}.rule-tag{text-transform:uppercase;letter-spacing:.04em;color:var(--c-warn);font-size:.8rem;font-weight:700}.nojs{color:var(--c-text-muted);margin:0 0 1rem;font-size:.9rem;display:block}