:root{--paper: #f3eee4;--paper-2: #e9e1d3;--ink: #16140f;--muted: #5d574c;--rule: #d2c6b2;--red: #8e1d32;--mango: #c99212;--lab: #1e4f43;--white: #fbf7ef;--measure: 38rem}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:radial-gradient(1200px 500px at 10% -10%,rgba(142,29,50,.06),transparent 50%),var(--paper);font-family:"Source Serif 4",Times New Roman,serif;font-optical-sizing:auto;font-size:clamp(1.05rem,.4vw + 1rem,1.2rem);line-height:1.6}img{max-width:100%;display:block}a{color:inherit}.skip{position:absolute;left:1rem;top:-4rem;background:var(--ink);color:var(--paper);padding:.5rem .8rem;z-index:20}.skip:focus{top:1rem}.mast{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--paper) 88%,white);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--rule)}.mast-inner{width:min(1180px,calc(100% - 2rem));margin:0 auto;min-height:4.1rem;display:flex;align-items:center;gap:.85rem}.wordmark{display:inline-flex;align-items:center;flex-shrink:0;text-decoration:none;line-height:0}.wordmark img{width:7.4rem;height:auto}.wordmark-foot img{width:9.2rem}.menu-btn{margin-left:auto;background:none;border:1px solid var(--ink);font:inherit;font-size:.85rem;padding:.3rem .7rem;cursor:pointer}.nav{display:none;position:absolute;inset:4.1rem 0 auto;background:var(--paper);border-bottom:1px solid var(--rule);padding:1rem 1.25rem 1.4rem;flex-direction:column;gap:.7rem}.nav.is-open,.nav:target{display:flex}.nav a{text-decoration:none;font-size:1.05rem}.hero,.chapter,.primer,.spec,.trade,.foot-grid{width:min(1180px,calc(100% - 2rem));margin-left:auto;margin-right:auto}.hero{display:grid;gap:1.6rem;padding:1.6rem 0 1.4rem}.kicker{font-family:IBM Plex Mono,monospace;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--red);margin:0 0 1rem}h1,h2,h3{font-family:Fraunces,serif;font-optical-sizing:auto;font-weight:360;letter-spacing:-.03em;line-height:1.05}h1{font-size:clamp(2rem,4.4vw,3.25rem);margin:0 0 .9rem}h1 em{font-style:italic;color:color-mix(in srgb,var(--ink) 72%,var(--red))}.lede{font-size:1.05rem;max-width:34rem;color:var(--muted)}.hero-actions{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.6rem}.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border-radius:999px;padding:.72rem 1.15rem;font-size:.95rem;border:1px solid var(--ink)}.btn-ink{background:var(--ink);color:var(--paper)}.btn-ghost{background:transparent}.hero-figure{margin:0}.hero-figure img{width:100%;border-radius:2px;background:#fff;aspect-ratio:1024 / 906;object-fit:cover}figcaption,.chart-label{font-family:IBM Plex Mono,monospace;font-size:.7rem;line-height:1.45;color:var(--muted)}figcaption{margin-top:.7rem}.spec{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--rule);border:1px solid var(--rule);margin-top:1rem}.spec article{background:var(--paper);padding:1.1rem 1rem 1.2rem}.spec span{font-family:Fraunces,serif;font-size:1.7rem;display:block;margin-bottom:.25rem}.spec p{margin:0;color:var(--muted);font-size:.95rem}.primer{padding:3.5rem 0 1rem;border-top:1px solid var(--rule);margin-top:3.5rem}.primer h2,.chapter-head h2,.trade h2{font-size:clamp(1.9rem,4vw,3rem);margin:.2rem 0 1.1rem}.primer-grid{display:grid;gap:1.2rem}.primer-grid p,.prose p,.chapter-lead,.card p,.caveat p,.faq p,.flavour-card p,.trade p,.legal{color:var(--ink)}.chapter,.trade,.hero,.spec,.primer{scroll-margin-top:5.2rem}.chapter{padding:4rem 0 1rem}.chapter-head p{font-family:IBM Plex Mono,monospace;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--lab);margin:0 0 .6rem}.chapter-lead{max-width:var(--measure);font-size:1.12rem}.split{display:grid;gap:2rem;align-items:start}.prose p,.measure p{max-width:var(--measure)}.panel{margin:0;padding:1.1rem 1rem 1rem;background:var(--white);border:1px solid var(--rule)}.helix,.chart{width:100%;height:auto}.chart-legend{display:flex;gap:1rem;font-family:IBM Plex Mono,monospace;font-size:.7rem;margin-bottom:.4rem}.swatch{width:.7rem;height:.7rem;display:inline-block;margin-right:.35rem;vertical-align:-1px}.swatch-lab{background:var(--lab)}.swatch-red{background:var(--red)}.cite{font-family:IBM Plex Mono,monospace;font-size:.68em;font-style:normal;letter-spacing:0}.cite a{color:var(--red);text-decoration:none;margin-left:.12em}.cite a:hover,.cite a:focus-visible{text-decoration:underline}.claim,.caveat{margin:2rem 0 0;padding:1.3rem 1.2rem;border:1px solid var(--rule)}.claim{background:#f7efe3;border-left:3px solid var(--red)}.claim-label{font-family:IBM Plex Mono,monospace;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--red);margin:0 0 .6rem}.claim-text{font-family:Fraunces,serif;font-size:clamp(1.35rem,3vw,1.85rem);line-height:1.2;margin:0 0 .8rem}.claim-note,.card-meta,.card-source,.flavour-tone{font-size:.95rem;color:var(--muted)!important}.evidence-grid{display:grid;gap:1rem;margin-top:1.5rem}.card{background:var(--white);border:1px solid var(--rule);padding:1.2rem 1.15rem 1.3rem}.card h3,.reasons h3,.flavour-card h3,.faq-item button,.caveat h3{font-size:1.35rem;margin:.15rem 0 .7rem}.card-meta{font-family:IBM Plex Mono,monospace;font-size:.7rem!important;letter-spacing:.06em;text-transform:uppercase;margin:0 0 .5rem}.card-source a{color:var(--lab)}.caveat{background:#ece6d8}.reasons{list-style:none;padding:0;margin:2rem 0 0;display:grid;gap:1rem;counter-reset:reason}.reasons li{background:var(--white);border:1px solid var(--rule);padding:1.15rem 1.15rem 1.2rem;counter-increment:reason}.reasons h3:before{content:counter(reason,decimal-leading-zero) "  ";font-family:IBM Plex Mono,monospace;font-size:.75rem;letter-spacing:.08em;color:var(--red)}.flavour-layout{display:grid;gap:1rem}.flavour-tabs{display:flex;flex-wrap:wrap;gap:.5rem}.flavour-tabs button{font:inherit;background:transparent;border:1px solid var(--rule);padding:.45rem .85rem;cursor:pointer}.flavour-tabs button.is-active{border-color:var(--tone);color:var(--tone)}.flavour-card{display:grid;grid-template-columns:88px 1fr;gap:1rem;background:var(--white);border:1px solid var(--rule);padding:1rem}.flavour-swatch{min-height:120px}.flavour-tone{font-family:IBM Plex Mono,monospace;font-size:.72rem!important;letter-spacing:.08em;text-transform:uppercase;margin:0 0 .3rem}.trade{display:grid;gap:1.5rem;margin:4rem auto;padding:2rem 1.2rem;background:var(--ink);color:var(--paper);width:min(1180px,100%)}.trade .kicker,.trade p{color:#d8d0c3}.trade h2{color:var(--paper)}.trade .btn-ink{background:var(--paper);color:var(--ink);border-color:var(--paper);margin-top:.6rem}.trade-specs{margin:0;display:grid;gap:1rem}.trade-specs div{border-top:1px solid #3b372f;padding-top:.7rem}.trade-specs dt{font-family:IBM Plex Mono,monospace;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:#b7ae9e}.trade-specs dd{margin:.25rem 0 0}.faq-item{border-top:1px solid var(--rule)}.faq-item button{width:100%;display:flex;justify-content:space-between;gap:1rem;text-align:left;background:none;border:0;font:inherit;cursor:pointer;padding:1rem 0}.faq-item p{margin:0 0 1.1rem;max-width:var(--measure)}.ref-list{list-style:none;padding:0;margin:0}.ref{display:grid;grid-template-columns:2.2rem 1fr;gap:.5rem;padding:.85rem .4rem;border-top:1px solid var(--rule);font-size:.95rem;scroll-margin-top:5.5rem}.ref-n{font-family:IBM Plex Mono,monospace;font-size:.78rem;color:var(--red)}.ref a{color:var(--lab);overflow-wrap:anywhere}.ref.is-flash{background:#f3e1d8}.foot{margin-top:3rem;border-top:1px solid var(--rule);padding:2.5rem 0 3rem}.foot-grid{display:grid;gap:1.2rem}.legal{color:var(--muted)!important;font-size:.92rem}.foot-links{display:flex;flex-direction:column;gap:.35rem;margin:0;font-family:IBM Plex Mono,monospace;font-size:.78rem}.foot-links a{text-decoration:none}.foot-links a:hover,.foot-links a:focus-visible{text-decoration:underline}@media(min-width:860px){.menu-btn{display:none}.nav{display:flex;position:static;flex-direction:row;align-items:center;margin-left:auto;padding:0;border:0;background:none;gap:.85rem}.nav a{font-size:.82rem}.hero{grid-template-columns:.95fr 1.05fr;grid-template-areas:"copy figure";align-items:center;padding-top:2.6rem;gap:2.4rem}.hero-copy{grid-area:copy}.hero-figure{grid-area:figure}.spec{grid-template-columns:repeat(4,1fr)}.primer-grid,.split,.evidence-grid,.reasons,.trade,.foot-grid{grid-template-columns:1fr 1fr}.split.reverse{grid-template-columns:.9fr 1.1fr}.reasons{grid-template-columns:1fr 1fr}.trade{padding:3rem 3rem 3.2rem;align-items:center}}@media(min-width:1100px){.evidence-grid{grid-template-columns:1fr 1fr}}
