:root{--bg:#ecf1f3;--bg-secondary:#e3eaec;--bg-tertiary:#d5e0e2;--text:#173e45;--text-muted:#3e5558;--text-subtle:#567072;--border:#d5e0e2;--border-strong:#6e8a8e;--accent:#173e45;--accent-hover:#102e33;--accent-light:#e4eef0;--accent-text:#173e45;--link-color:#173e45;--on-primary:#ffffff;--success:#1a7a48;--success-light:#e7f5ec;--warning:#9a4a06;--warning-light:#fdf3e3;--danger:#b42318;--danger-light:#fdecea;--card:#ffffff;--card-shadow:0 1px 2px rgb(23 62 69/0.06),0 8px 24px rgb(23 62 69/0.06);--card-shadow-md:0 8px 28px rgb(23 62 69/0.12);--table-header:#e3eaec;--table-alt:#f4f7f8;--result-bg:#f7f1ec;--result-text:#3e5558;--result-value:#173e45;--result-rule:#b95118;--result-border:#d5e0e2;--result-row-border:#d5e0e2;--input-bg:#ffffff;--input-border:#6e8a8e;--input-focus:#173e45;--focus-ring:rgb(23 62 69/0.28);--tab-track-bg:#e3eaec;--tab-inactive-text:#3e5558;--dir-active-bg:#173e45;--dir-active-text:#ffffff;--preset-bg:#F6EDE3;--preset-border:#b95118;--preset-text:#9a4312;--preset-on-bg:#b95118;--preset-on-text:#ffffff;--preset-on-border:#9a4312;--formula-bg:#ffffff;--formula-text:#3e5558;--secondary-btn-bg:transparent;--secondary-btn-border:#6e8a8e;--secondary-btn-text:#3e5558;--logo-mark:#173e45;--logo-bolt:#f5c518;--logo-word:#173e45;--overlay:rgb(14 28 32/0.48);--icon-flame:#e25b2a;--icon-car:#1f6f8a;--icon-shirt:#b95118;--icon-van:#2f6b4f;--icon-sun:#c4922a;--icon-microwave:#6a4e8a;--icon-action:#173e45}.dark{--bg:#0c1c20;--bg-secondary:#143034;--bg-tertiary:#0a171a;--text:#ecf1f3;--text-muted:#c5d4d6;--text-subtle:#93a8ab;--border:#2a4549;--border-strong:#3d5c61;--accent:#2a7c88;--accent-hover:#1f6570;--accent-light:rgb(42 124 136/0.18);--accent-text:#9fd4db;--link-color:#9fd4db;--on-primary:#ffffff;--success:#4ade80;--success-light:#0d2617;--warning:#f2a93b;--warning-light:#2a1c08;--danger:#f87171;--danger-light:#2a1212;--card:#143034;--card-shadow:none;--card-shadow-md:none;--table-header:#0a171a;--table-alt:#0c1c20;--result-bg:#0a171a;--result-text:#c5d4d6;--result-value:#ecf1f3;--result-rule:#F6EDE3;--result-border:#2a4549;--result-row-border:#2a4549;--input-bg:#143034;--input-border:#3d5c61;--input-focus:#9fd4db;--focus-ring:rgb(159 212 219/0.35);--tab-track-bg:#0a171a;--tab-inactive-text:#c5d4d6;--dir-active-bg:#2a7c88;--dir-active-text:#ffffff;--preset-bg:rgb(185 81 24/0.22);--preset-border:#F6EDE3;--preset-text:#F6EDE3;--preset-on-bg:#b95118;--preset-on-text:#ffffff;--preset-on-border:#F6EDE3;--formula-bg:#0c1c20;--formula-text:#93a8ab;--secondary-btn-bg:transparent;--secondary-btn-border:#3d5c61;--secondary-btn-text:#c5d4d6;--logo-mark:#2a7c88;--logo-bolt:#f5c518;--logo-word:#ecf1f3;--overlay:rgb(6 12 14/0.66);--icon-flame:#ff8a5b;--icon-car:#7ec8d4;--icon-shirt:#F6EDE3;--icon-van:#7dcea0;--icon-sun:#f2c14e;--icon-microwave:#c4b0e0;--icon-action:#9fd4db}h1{font-size:clamp(2.25rem,1.95rem + 1vw,2.5rem);font-weight:650;line-height:1.15;letter-spacing:-.01em;text-wrap:balance;color:var(--text)}h2{font-size:1.5rem;line-height:1.25}h2,h3{font-weight:600;text-wrap:balance;color:var(--text)}h3{font-size:1.125rem;line-height:1.35}h4{font-weight:600;color:var(--text)}h4,p{font-size:1rem}p{font-weight:400;line-height:1.55;color:var(--text-muted)}code,kbd,pre,samp{font-family:var(--font-mono,"IBM Plex Mono"),ui-monospace,monospace}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}::selection{background:var(--accent);color:var(--on-primary)}input,textarea{caret-color:var(--accent)}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}body{font-family:var(--font-sans,"IBM Plex Sans"),system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:1rem;font-weight:400;line-height:1.55;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased}html.theme-switching,html.theme-switching *{transition:none!important}main{min-height:calc(100vh - 376px)}a{color:var(--link-color);text-decoration:none;text-underline-offset:.2em;touch-action:manipulation}a:hover{text-decoration:underline;text-decoration-thickness:2px}button,input,label,select,summary{touch-action:manipulation}button,summary{cursor:pointer}:focus{outline:none}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}img{max-width:100%;height:auto}table{border-collapse:collapse;width:100%}button{font-family:var(--font-sans,"IBM Plex Sans"),system-ui,sans-serif}.container{max-width:1120px;margin:0 auto;padding:0 16px}@media(min-width:768px){.container{padding:0 24px}}.section{padding:24px 0;border-bottom:1px solid var(--border)}.section:last-of-type{border-bottom:none}.section-intro{max-width:68ch;margin:.375rem 0 1.5rem;font-size:1.0625rem;line-height:1.65}.prose h1,.prose h2{margin-bottom:.25rem}.prose h2{margin-top:2.25rem}.prose p{margin-top:.75rem;line-height:1.7}.prose a[href^="mailto:"],.prose strong{font-weight:700;color:var(--text)}.section>.container>h2+.link-grid{margin-top:1rem}.link-grid{display:grid;grid-gap:4px 24px;gap:4px 24px;grid-template-columns:repeat(auto-fill,minmax(16rem,1fr));list-style:none;margin:0;padding:0}.link-grid a{display:inline-flex;align-items:center;min-height:44px;color:var(--link-color);font-weight:500;line-height:1.4;text-decoration:underline;text-underline-offset:.2em}.link-grid a:hover{text-decoration-thickness:2px}@keyframes digit-roll{0%{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}.digit-roll{animation:digit-roll .2s cubic-bezier(.2,0,0,1)}.digit-morph{display:inline-flex}.digit-morph__sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.digit-morph__row{display:inline-flex;overflow:hidden;white-space:pre}.digit-morph__row>span{display:inline-block}@media print{@page{size:letter portrait;margin:.8cm .7cm}footer,header{display:none!important}main{min-height:auto}main>section:not(:has(.print-target)){display:none!important}main>section:has(.print-target){padding:0;border:none}.print-target{print-color-adjust:exact;-webkit-print-color-adjust:exact;box-shadow:none!important;border:1px solid var(--border)!important;padding:.5rem!important}.print-target button{display:none!important}.print-target button[aria-pressed=true],.print-target button[aria-selected=true]{outline:2px solid var(--accent)!important;outline-offset:-3px;color:var(--accent)!important;font-weight:700;background:var(--accent-light)!important}.print-target button[aria-pressed=false],.print-target button[aria-selected=false]{color:var(--text-subtle)!important}.print-target input,.print-target select{height:28px!important;padding:0 .5rem!important;font-size:.8125rem!important}.print-target [class*=load-bar__] input{height:18px!important;min-height:0!important;padding:0 .25rem!important;font-size:.75rem!important;line-height:1!important}.print-target select{-moz-appearance:none;appearance:none;-webkit-appearance:none}.no-print{display:none!important}.print-card{page-break-inside:avoid;break-inside:avoid}}