:root{--paper: #f6f7f4;--paper-2: #ffffff;--ink: #16191d;--ink-soft: #2c313a;--muted: #6b7078;--line: #dcdfd8;--line-strong: #c3c7bd;--amber: #f2a33c;--amber-deep: #d9831a;--blueprint: #1f3a5f;--blueprint-soft: #e7edf4;--positive: #2e7d5b;--positive-soft: #e4f1ea;--font-display: "Archivo", system-ui, sans-serif;--font-body: "IBM Plex Sans", system-ui, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, monospace;--step--1: clamp(.83rem, .8rem + .15vw, .9rem);--step-0: clamp(1rem, .95rem + .2vw, 1.06rem);--step-1: clamp(1.2rem, 1.1rem + .4vw, 1.35rem);--step-2: clamp(1.5rem, 1.3rem + .8vw, 1.85rem);--step-3: clamp(1.95rem, 1.6rem + 1.5vw, 2.7rem);--step-4: clamp(2.6rem, 2rem + 3vw, 4rem);--radius: 4px;--radius-lg: 8px;--maxw: 1120px;--gutter: clamp(1rem, .5rem + 2vw, 2rem)}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;transition-duration:.001ms!important}}body{margin:0;font-family:var(--font-body);font-size:var(--step-0);line-height:1.65;color:var(--ink);background-color:var(--paper);background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:28px 28px;background-position:-1px -1px;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.08;letter-spacing:-.01em;color:var(--ink);margin:0 0 .5em}h1{font-size:var(--step-4)}h2{font-size:var(--step-3)}h3{font-size:var(--step-2)}p{margin:0 0 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a:hover{color:var(--amber-deep)}@media(max-width:640px){.nav a:not(.nav-cta){display:none}}.site-footer{margin-top:4rem;border-top:2px solid var(--ink);background:var(--ink);color:#cfd3cd;background-image:none}.site-footer a{color:#fff}.site-footer .wrap{padding-block:2.5rem;display:grid;gap:2rem;grid-template-columns:1.4fr 1fr 1fr}.site-footer h4{color:#fff;font-size:var(--step-0);margin-bottom:.8rem}.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:.4rem}.site-footer .fineprint{grid-column:1 / -1;border-top:1px solid #333;padding-top:1.2rem;font-size:var(--step--1);color:#9aa09a}@media(max-width:720px){.site-footer .wrap{grid-template-columns:1fr}}.calc{background:var(--paper-2);border:2px solid var(--ink);border-radius:var(--radius-lg);box-shadow:6px 6px 0 var(--ink);overflow:hidden}.calc__head{background:var(--blueprint);color:#fff;padding:.85rem 1.25rem;font-family:var(--font-mono);font-size:var(--step--1);text-transform:uppercase;letter-spacing:.12em;display:flex;justify-content:space-between;align-items:center}.calc__body{padding:1.5rem;display:grid;gap:1.5rem}@media(min-width:720px){.calc__body{grid-template-columns:1fr .9fr;align-items:start}}.field{display:grid;gap:.35rem;margin-bottom:1rem}.field label{font-family:var(--font-display);font-weight:600;font-size:var(--step--1)}.field .hint{color:var(--muted);font-size:var(--step--1)}.field input,.field select{font-family:var(--font-mono);font-size:var(--step-0);padding:.6rem .7rem;border:2px solid var(--line-strong);border-radius:var(--radius);background:var(--paper);color:var(--ink);width:100%}.field input:focus,.field select:focus{outline:3px solid var(--amber);outline-offset:1px;border-color:var(--ink)}.field-row{display:grid;grid-template-columns:1fr 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6vw,5rem)}.hero__grid{display:grid;gap:2rem;align-items:center}@media(min-width:880px){.hero__grid{grid-template-columns:1.1fr .9fr}}.hero h1{margin-bottom:.6rem}.hero p.lead{font-size:var(--step-1);color:var(--ink-soft);max-width:46ch}.hero__stats{display:flex;gap:1.6rem;margin-top:1.6rem;flex-wrap:wrap}.hero__stat b{font-family:var(--font-mono);font-size:var(--step-2);display:block;color:var(--blueprint)}.hero__stat span{font-size:var(--step--1);color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.section{padding-block:clamp(2rem,1rem + 3vw,3.5rem)}.section__head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;margin-bottom:1.5rem;flex-wrap:wrap}.tool-grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}.tool-card{display:flex;flex-direction:column;gap:.35rem;background:var(--paper-2);border:2px solid var(--ink);border-radius:var(--radius);padding:1.1rem;text-decoration:none;color:var(--ink);transition:transform .12s ease,box-shadow .12s ease}.tool-card:hover{transform:translate(-2px,-2px);box-shadow:5px 5px 0 var(--amber);color:var(--ink)}.tool-card .tc-num{font-family:var(--font-mono);font-size:.72rem;color:var(--muted)}.tool-card .tc-title{font-family:var(--font-display);font-weight:700;font-size:var(--step-0)}.tool-card .tc-desc{font-size:var(--step--1);color:var(--muted);line-height:1.45}.tool-card.is-soon{opacity:.62;cursor:default}.tool-card.is-soon:hover{transform:none;box-shadow:none}.tag-soon{font-family:var(--font-mono);font-size:.62rem;text-transform:uppercase;letter-spacing:.1em;color:var(--amber-deep);border:1px solid var(--amber);border-radius:999px;padding:.05rem .45rem;align-self:flex-start}.article{max-width:760px;margin-inline:auto}.article h2{margin-top:2.2rem;font-size:var(--step-2)}.article h3{margin-top:1.6rem;font-size:var(--step-1)}.article ul,.article ol{padding-left:1.2rem;margin-bottom:1rem}.article li{margin-bottom:.4rem}.article .callout{border-left:4px solid var(--amber);background:var(--paper-2);padding:1rem 1.2rem;border-radius:0 var(--radius) var(--radius) 0;margin:1.4rem 0}.article .formula{font-family:var(--font-mono);background:var(--ink);color:var(--paper);padding:1rem 1.2rem;border-radius:var(--radius);overflow-x:auto;font-size:var(--step--1);margin:1.2rem 0}.article table{width:100%;border-collapse:collapse;margin:1.4rem 0;font-size:var(--step--1)}.article th,.article td{border:1px solid var(--line-strong);padding:.55rem .7rem;text-align:left}.article th{background:var(--blueprint-soft);font-family:var(--font-display)}.faq details{border:2px solid var(--line-strong);border-radius:var(--radius);margin-bottom:.7rem;background:var(--paper-2)}.faq summary{cursor:pointer;padding:.9rem 1.1rem;font-family:var(--font-display);font-weight:600;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";float:right;font-family:var(--font-mono);color:var(--amber-deep)}.faq details[open] summary:after{content:"–"}.faq details p{padding:0 1.1rem 1rem;margin:0;color:var(--ink-soft)}.ad-slot{margin:2rem auto;max-width:760px;min-height:90px;display:grid;place-items:center;border:1px dashed var(--line-strong);border-radius:var(--radius);background:#ffffff80}.ad-slot small{color:var(--muted);font-family:var(--font-mono);font-size:.65rem;text-transform:uppercase;letter-spacing:.15em}.crumbs{font-family:var(--font-mono);font-size:var(--step--1);color:var(--muted);padding-block:1rem;display:flex;gap:.4rem;flex-wrap:wrap}.crumbs a{text-decoration:none}.related{display:grid;gap:.8rem;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));margin-top:1.5rem}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}