:root{--bg-canvas:#ffffff;--bg-surface:#f1f5f9;--bg-surface-hover:#e8edf3;--text-primary:#1e293b;--text-muted:#475569;--accent-primary:#9f1239;--accent-secondary:#be123c;--accent-soft:#fff1f2;--border-subtle:#e2e8f0;--ease-kinetic:cubic-bezier(0.16,1,0.3,1);--shadow-soft:0 2px 12px rgba(30,41,59,.07);--shadow-elevation:0 12px 32px -4px rgba(30,41,59,.16);--glow-accent:0 0 24px -8px rgba(159,18,57,.4);--glass-backdrop:none;--serif:Charter,"Bitstream Charter",Cambria,Georgia,serif}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--serif);font-size:1.0625rem;line-height:1.68;color:var(--text-primary);background:var(--bg-canvas);overflow-wrap:anywhere;hyphens:auto}
h1,h2,h3,h4{line-height:1.15;font-weight:700;overflow-wrap:anywhere;hyphens:auto;margin:0 0 .8rem}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem);letter-spacing:-.01em}
h3{font-size:1.3rem}
p{margin:0 0 1rem}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-primary);text-underline-offset:3px}
a:hover{color:var(--accent-secondary)}
:focus-visible{outline:3px solid var(--accent-primary);outline-offset:3px}
.wrap{max-width:1200px;margin:0 auto;padding:0 1.25rem}
.prose{max-width:70ch}
.prose.center{margin:0 auto}
.muted{color:var(--text-muted)}
.label{display:block;font-variant:small-caps;text-transform:lowercase;letter-spacing:.09em;font-size:1.08rem;color:var(--accent-primary);margin-bottom:.45rem}
.skip{position:absolute;left:-999px;top:0;background:var(--accent-primary);color:#fff;padding:.6rem 1rem;z-index:20}
.skip:focus{left:1rem}
/* header */
.site-header{position:relative;background:#fff;border-bottom:1px solid var(--border-subtle)}
.header-top{display:flex;justify-content:space-between;align-items:center;padding-top:1.1rem;padding-bottom:.6rem}
.brand{display:inline-flex;align-items:center;gap:.65rem;font-weight:700;font-size:1.4rem;color:var(--text-primary);text-decoration:none;margin-right:auto}
.brand:hover{color:var(--text-primary)}
.brand-mark{width:2.3rem;height:2.3rem;background:var(--accent-primary);display:grid;place-items:center}
.brand-mark svg{width:1.4rem;height:1.4rem}
.menu-btn{display:none;background:none;border:0;font-size:1.9rem;line-height:1;color:var(--text-primary);width:2.75rem;height:2.75rem;cursor:pointer;border-radius:50%}
.menu-btn:hover{background:var(--bg-surface)}
.site-nav ul{list-style:none;margin:0 auto;padding:.4rem 1.25rem 1rem;max-width:1200px;display:flex;justify-content:center;flex-wrap:wrap;gap:.3rem 1.7rem}
.site-nav a{position:relative;color:var(--text-primary);text-decoration:none;padding:.3rem 0;font-size:1.02rem}
.site-nav a::after,.tlink::after{content:"";position:absolute;left:0;bottom:-1px;width:100%;height:2px;background:var(--accent-primary);transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease-kinetic)}
.site-nav a:hover::after,.site-nav a:focus-visible::after,.site-nav a[aria-current=page]::after{transform:scaleX(1)}
.site-nav a[aria-current=page]{color:var(--accent-primary)}
/* buttons & links */
.btn{display:inline-block;background:var(--accent-primary);color:#fff;padding:.95rem 1.7rem;font:700 1rem var(--serif);letter-spacing:.09em;text-decoration:none;border:0;cursor:pointer;transition:transform .4s var(--ease-kinetic),box-shadow .4s var(--ease-kinetic),background .3s}
.btn:hover{color:#fff;background:#881337;transform:translateY(-3px);box-shadow:var(--shadow-elevation),var(--glow-accent)}
.tlink{position:relative;display:inline-block;font-weight:700;text-decoration:none;color:var(--accent-primary);background:none;border:0;padding:0;font-family:var(--serif);font-size:1rem;cursor:pointer}
.tlink::after{transform:scaleX(.25)}
.tlink:hover::after,.tlink:focus-visible::after{transform:scaleX(1)}
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:1.1rem 2rem;margin-top:1.8rem}
/* bands & hero */
.band{padding:4.5rem 0;background:#fff}
.band-grey{background:var(--bg-surface)}
.hero{padding:5.5rem 0 3.5rem;background:#fff}
.hero h1{font-size:clamp(2.7rem,7.4vw,5.9rem);letter-spacing:-.025em;max-width:15ch;margin:.2rem 0 1.4rem}
.page-hero{padding:4.2rem 0 2.8rem;background:#fff}
.page-hero h1{font-size:clamp(2.4rem,6vw,4.4rem);letter-spacing:-.02em;max-width:18ch}
.lead{font-size:1.24rem;color:var(--text-muted);max-width:62ch}
.section-head{max-width:70ch;margin-bottom:2.2rem}
/* stat strip */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:2.8rem}
.stat{background:var(--bg-surface);padding:1.2rem 1.3rem}
.band-grey .stat{background:#fff}
.stat strong{display:block;font-size:1.9rem;line-height:1.1;color:var(--accent-primary)}
.stat span{font-size:.95rem;color:var(--text-muted)}
/* panels */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}
.panel{background:#fff;padding:1.7rem;box-shadow:var(--shadow-soft);transition:transform .5s var(--ease-kinetic),box-shadow .5s var(--ease-kinetic)}
.panel:hover{transform:translateY(-5px) scale(1.015);box-shadow:var(--shadow-elevation),var(--glow-accent)}
.panel h3{margin-top:.2rem}
.panel p:last-child{margin-bottom:0}
.split{display:grid;grid-template-columns:1.15fr 1fr;gap:3rem;align-items:center}
.split.top{align-items:start}
.media{margin:0}
.media img{width:100%;aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow-soft)}
.media.wide img{aspect-ratio:16/9}
.media.square img{aspect-ratio:1/1}
.media figcaption{font-size:.9rem;color:var(--text-muted);margin-top:.6rem}
.badge{display:inline-block;border-radius:999px;background:var(--accent-primary);color:#fff;padding:.1rem .75rem;font-size:.85rem;font-variant:small-caps;letter-spacing:.05em}
.badge.soft{background:var(--accent-soft);color:var(--accent-primary)}
.anatomy{list-style:none;margin:0;padding:0;display:grid;gap:.9rem}
.anatomy li{display:flex;gap:1rem;align-items:flex-start}
.pin{flex:0 0 2.6rem;width:2.6rem;height:2.6rem;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent-primary);font-weight:700;font-size:.95rem}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:1rem}
.steps li{counter-increment:s;position:relative;padding-left:3.2rem}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:2.2rem;height:2.2rem;border-radius:50%;background:var(--accent-primary);color:#fff;display:grid;place-items:center;font-weight:700}
/* tabs */
.tablist{display:flex;flex-wrap:wrap;gap:.2rem;border-bottom:2px solid var(--border-subtle);margin-bottom:0}
.tablist [role=tab]{background:none;border:0;border-bottom:3px solid transparent;margin-bottom:-2px;padding:.7rem 1.1rem;font:1.12rem var(--serif);font-variant:small-caps;letter-spacing:.05em;color:var(--text-muted);cursor:pointer}
.tablist [role=tab]:hover{color:var(--text-primary)}
.tablist [role=tab][aria-selected=true]{color:var(--accent-primary);border-bottom-color:var(--accent-primary)}
[role=tabpanel]{background:#fff;padding:1.8rem;box-shadow:var(--shadow-soft)}
[role=tabpanel][hidden]{display:none}
/* accordions */
.acc details{background:#fff;box-shadow:var(--shadow-soft);margin-bottom:.8rem;transition:box-shadow .4s var(--ease-kinetic)}
.acc details:hover{box-shadow:var(--shadow-elevation)}
.acc summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:1rem;padding:1.05rem 1.3rem;font-weight:700;font-size:1.08rem}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:"+";color:var(--accent-primary);font-size:1.5rem;line-height:1}
.acc details[open] summary::after{content:"\2212"}
.acc-body{padding:0 1.3rem 1.2rem}
.acc-body p:last-child{margin-bottom:0}
/* tables & notes */
.table-wrap{overflow-x:auto;background:#fff;box-shadow:var(--shadow-soft)}
table{border-collapse:collapse;width:100%;min-width:600px}
th,td{padding:.85rem 1rem;text-align:left;vertical-align:top;border-bottom:1px solid var(--border-subtle)}
th{font-variant:small-caps;letter-spacing:.05em;color:var(--accent-primary);font-size:1.05rem}
tr:last-child td{border-bottom:0}
.safety{background:var(--accent-soft);border-left:4px solid var(--accent-primary);padding:1rem 1.3rem;margin:1.6rem 0;max-width:70ch}
.safety strong{color:var(--accent-primary)}
/* article */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:3rem;align-items:start}
.toc{position:sticky;top:1.5rem;background:var(--bg-surface);padding:1.3rem}
.toc ul{list-style:none;margin:0;padding:0;display:grid;gap:.45rem}
.toc a{text-decoration:none}
.toc a:hover{text-decoration:underline}
/* forms */
.form{display:grid;gap:1.1rem}
.form label{font-weight:700;display:block;margin-bottom:.3rem}
.form input,.form select,.form textarea{width:100%;font:1rem var(--serif);padding:.75rem .85rem;border:1px solid #cbd5e1;border-radius:0;background:#fff;color:var(--text-primary)}
.form textarea{min-height:170px;resize:vertical}
.preview{white-space:pre-wrap;background:var(--bg-surface);padding:1rem;font-size:.95rem;min-height:3rem;margin:0}
.status{min-height:1.5rem;font-weight:700;color:var(--accent-primary)}
/* footer */
.site-footer{background:var(--text-primary);color:#e2e8f0;padding:3.2rem 0 1.6rem}
.site-footer a{color:#fecdd3}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 2fr;gap:2rem}
.footer-brand{font-size:1.3rem;font-weight:700;color:#fff}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:.4rem}
.site-footer h2{font-size:1rem;font-variant:small-caps;text-transform:lowercase;letter-spacing:.1em;color:#fecdd3}
.copy{border-top:1px solid #334155;margin-top:2rem;padding-top:1.2rem;font-size:.92rem;color:#cbd5e1}
/* reveal */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease-kinetic),transform .7s var(--ease-kinetic)}
.js .reveal.reveal-visible{opacity:1;transform:translateY(0)}
@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.js .reveal{opacity:1;transform:none}}
@media (max-width:1024px){.split{gap:2rem}.article-layout{grid-template-columns:1fr}.toc{position:static}}
@media (max-width:768px){
.menu-btn{display:block}
.site-nav{display:none;background:var(--bg-surface);box-shadow:var(--shadow-elevation)}
.site-nav.open{display:block;animation:slideDown .4s var(--ease-kinetic)}
.site-nav ul{flex-direction:column;align-items:flex-start;padding:1rem 1.25rem 1.3rem;gap:.2rem}
.site-nav a{display:block;font-size:1.12rem;padding:.45rem 0}
.split{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.band{padding:3.5rem 0}
}
@media (max-width:480px){.hero{padding:3.5rem 0 2.5rem}.page-hero{padding:3rem 0 2rem}[role=tabpanel],.panel{padding:1.3rem}.brand{font-size:1.2rem}.lead{font-size:1.12rem}}