:root{--ink: #14181c;--ink-soft: #4a5560;--ink-faint: #79848f;--rule: #dde3e8;--rule-soft: #eef1f4;--paper: #ffffff;--paper-alt: #f6f8f9;--accent: #0b5c63;--accent-soft: #e6f0f0;--warn: #8a5b00;--warn-soft: #fbf3e2;--font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, "Liberation Mono", monospace;--measure: 68ch;--wrap: 62rem}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-sans);font-size:1rem;line-height:1.6;display:flex;flex-direction:column;min-height:100vh}main{flex:1 0 auto;padding:2.5rem 0 4rem}.wrap{width:min(100% - 2.5rem,var(--wrap));margin-inline:auto}a{color:var(--accent);text-underline-offset:.15em}a:hover{text-decoration-thickness:2px}h1,h2,h3,h4{line-height:1.25;letter-spacing:-.01em;margin:0 0 .6em;font-weight:620}h1{font-size:clamp(1.7rem,1.2rem + 1.8vw,2.4rem)}h2{font-size:clamp(1.25rem,1.05rem + .8vw,1.6rem);margin-top:2.2rem}h3{font-size:1.1rem;margin-top:1.6rem}p,ul,ol{max-width:var(--measure)}code,kbd,samp{font-family:var(--font-mono);font-size:.9em;background:var(--paper-alt);padding:.1em .32em;border-radius:3px}pre{background:var(--paper-alt);border:1px solid var(--rule);border-radius:6px;padding:.9rem 1rem;overflow-x:auto}pre code{background:none;padding:0}table{border-collapse:collapse;width:100%;font-size:.95rem}th,td{text-align:left;padding:.5rem .7rem;border-bottom:1px solid var(--rule)}th{font-weight:600;color:var(--ink-soft)}.muted{color:var(--ink-soft)}.small{font-size:.85rem}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:1rem;top:1rem;background:var(--paper);padding:.5rem .8rem;border:1px solid var(--rule);z-index:10}.site-header{border-bottom:1px solid var(--rule);background:var(--paper)}.header-inner{display:flex;flex-wrap:wrap;align-items:baseline;gap:1rem 2rem;padding:1rem 0}.brand{text-decoration:none;color:var(--ink);display:flex;flex-direction:column;line-height:1.2}.brand-name{font-weight:660;font-size:1.15rem;letter-spacing:-.02em}.brand-sub{font-size:.72rem;color:var(--ink-faint);letter-spacing:.02em}.site-header nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:.2rem 1.1rem;margin:0;padding:0;max-width:none}.site-header nav a{color:var(--ink-soft);text-decoration:none;font-size:.92rem}.site-header nav a:hover,.site-header nav a[aria-current=page]{color:var(--ink);text-decoration:underline}.site-footer{border-top:1px solid var(--rule);background:var(--paper-alt);padding:2rem 0 2.5rem;font-size:.9rem}.footer-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1.5rem}.footer-legal{margin:0 0 .2rem;font-weight:600}.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.2rem 1rem}.draft-banner{width:min(100% - 2.5rem,var(--wrap));margin:0 auto 2rem;max-width:none;background:var(--warn-soft);border:1px solid #e6d3a8;color:var(--warn);padding:.6rem .9rem;border-radius:5px;font-size:.88rem}.todo{background:var(--warn-soft);border-left:3px solid #d3a94a;padding:.6rem .9rem;margin:1.2rem 0;font-size:.88rem;color:var(--warn);max-width:var(--measure)}.hero{padding-bottom:1.5rem;border-bottom:1px solid var(--rule);margin-bottom:2rem}.hero p.lede{font-size:1.1rem;color:var(--ink-soft)}.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.72rem;color:var(--ink-faint);margin:0 0 .5rem;font-weight:600}.buyer-question{background:var(--accent-soft);border-radius:5px;padding:.7rem .9rem;font-size:.92rem;margin:0 0 1.5rem;max-width:var(--measure)}.buyer-question strong{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);margin-bottom:.2rem}.entry-list{list-style:none;padding:0;margin:0;max-width:none;display:grid;gap:0}.entry-list li{border-bottom:1px solid var(--rule-soft);padding:1rem 0;max-width:none}.entry-list h3{margin:0 0 .25rem;font-size:1.05rem}.entry-list a{text-decoration:none}.entry-list a:hover{text-decoration:underline}.entry-meta{font-size:.78rem;color:var(--ink-faint);display:flex;flex-wrap:wrap;gap:.6rem;margin:.35rem 0 0}.empty-state{border:1px dashed var(--rule);border-radius:6px;padding:1.2rem;color:var(--ink-soft);background:var(--paper-alt);max-width:var(--measure)}.section-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1rem;list-style:none;padding:0;margin:1.5rem 0 0;max-width:none}.section-grid li{border:1px solid var(--rule);border-radius:6px;padding:.9rem 1rem}.section-grid h3{margin:0 0 .3rem;font-size:1rem}.section-grid p{margin:0;font-size:.88rem;color:var(--ink-soft)}.tags{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;padding:0;margin:1.5rem 0 0;max-width:none}.tags li{font-size:.75rem;border:1px solid var(--rule);border-radius:999px;padding:.15rem .6rem;color:var(--ink-soft)}.prose>:first-child{margin-top:0}.prose blockquote{margin:1.4rem 0;padding-left:1rem;border-left:3px solid var(--rule);color:var(--ink-soft)}.calc{border:1px solid var(--rule);border-radius:8px;padding:1.25rem;background:var(--paper-alt);max-width:none;margin:1.5rem 0 2rem}.calc fieldset{border:0;padding:0;margin:0 0 1.25rem}.calc legend{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint);font-weight:600;padding:0;margin-bottom:.7rem}.calc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:.9rem 1.2rem}.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.25rem}.field .hint{display:block;font-size:.76rem;color:var(--ink-faint);font-weight:400;margin-top:.15rem}.field input,.field select{width:100%;font:inherit;font-variant-numeric:tabular-nums;padding:.45rem .6rem;border:1px solid var(--rule);border-radius:5px;background:var(--paper);color:var(--ink)}.field input:focus,.field select:focus{outline:2px solid var(--accent);outline-offset:1px}.calc-actions{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:1.25rem}.btn{font:inherit;font-size:.9rem;padding:.45rem .9rem;border-radius:5px;border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer}.btn.secondary{background:var(--paper);color:var(--accent)}.btn:hover{filter:brightness(1.08)}.results{border-top:1px solid var(--rule);padding-top:1.1rem}.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(12rem,1fr));gap:1rem;margin:0 0 1rem;list-style:none;padding:0;max-width:none}.result-grid li{background:var(--paper);border:1px solid var(--rule);border-radius:6px;padding:.8rem .9rem}.result-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-faint);margin:0 0 .3rem}.result-value{font-size:1.45rem;font-weight:640;font-variant-numeric:tabular-nums;margin:0;letter-spacing:-.02em}.result-note{font-size:.78rem;color:var(--ink-soft);margin:.3rem 0 0}.calc-error{color:#8a1f11;background:#fdeeec;border:1px solid #f0c4bd;border-radius:5px;padding:.55rem .8rem;font-size:.85rem;margin:0 0 1rem}[hidden]{display:none!important}