:root{--cream:#f7f3eb;--cream-dark:#ebe4d6;--ink:#1c2421;--ink-muted:#4a5550;--teal:#0d7377;--teal-dark:#095456;--teal-soft:#d7ecec;--border:#d9d0c0;--white:#fffcf7;--warning:#6b4f1d;--warning-bg:#f5e8c8;--radius:12px;--shadow:0 1px 2px #1c24210f, 0 8px 24px #1c24210f;--font-serif:"Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;--font-sans:"DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--max:42rem;--wide:68rem}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-sans);color:var(--ink);background:var(--cream);-webkit-font-smoothing:antialiased;margin:0;font-size:1.0625rem;line-height:1.7}img{max-width:100%;height:auto}a{color:var(--teal-dark);text-underline-offset:.18em;text-decoration-thickness:1px}a:hover{color:var(--teal)}h1,h2,h3,h4{font-family:var(--font-serif);letter-spacing:-.02em;color:var(--ink);font-weight:650;line-height:1.2}h1{margin:0 0 1rem;font-size:clamp(2.1rem,4vw,2.85rem)}h2{margin:2.5rem 0 .85rem;font-size:clamp(1.55rem,3vw,1.9rem)}h3{margin:1.75rem 0 .6rem;font-size:1.25rem}p{margin:0 0 1.1rem}ul,ol{margin:0 0 1.25rem;padding-left:1.25rem}li{margin-bottom:.45rem}li::marker{color:var(--teal)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.container{width:min(100% - 2rem, var(--wide));margin-inline:auto}.prose{max-width:var(--max)}.prose>:first-child{margin-top:0}.lead{color:var(--ink-muted);font-size:1.2rem;line-height:1.65}.btn{font-family:var(--font-sans);cursor:pointer;border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;gap:.4rem;padding:.7rem 1.15rem;font-size:.95rem;font-weight:600;text-decoration:none;transition:background .15s,color .15s,border-color .15s;display:inline-flex}.btn-primary{background:var(--teal);color:#fff}.btn-primary:hover{background:var(--teal-dark);color:#fff}.btn-secondary{border-color:var(--border);color:var(--ink);background:0 0}.btn-secondary:hover{border-color:var(--teal);color:var(--teal-dark)}.btn-small{padding:.45rem .85rem;font-size:.85rem}.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.badge{background:var(--teal-soft);color:var(--teal-dark);letter-spacing:.02em;border-radius:999px;padding:.2rem .55rem;font-size:.75rem;font-weight:600;display:inline-block}.callout{border-radius:var(--radius);border:1px solid var(--border);background:var(--white);margin:1.5rem 0;padding:1rem 1.15rem}.callout-warning{background:var(--warning-bg);color:var(--warning);border-color:#e2cb92}.callout strong{font-family:var(--font-sans);margin-bottom:.25rem;display:block}.site-header{z-index:40;backdrop-filter:blur(10px);border-bottom:1px solid var(--border);background:#f7f3ebeb;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:1rem;padding:.85rem 0;display:flex}.wordmark{font-family:var(--font-serif);letter-spacing:-.03em;color:var(--ink);font-size:1.35rem;font-weight:700;text-decoration:none}.wordmark span{color:var(--teal)}.nav{flex-wrap:wrap;align-items:center;gap:.15rem 1rem;display:flex}.nav a{color:var(--ink-muted);font-size:.92rem;font-weight:500;text-decoration:none}.nav a:hover,.nav a[aria-current=page]{color:var(--teal-dark)}.nav-toggle{border:1px solid var(--border);font:inherit;color:var(--ink);cursor:pointer;background:0 0;border-radius:8px;padding:.4rem .65rem;display:none}.region-bar{background:var(--teal-soft);border-bottom:1px solid #c5dede;font-size:.9rem}.region-bar-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;padding:.55rem 0;display:flex}.region-bar strong{font-weight:600}.region-controls{flex-wrap:wrap;gap:.35rem;display:flex}.region-controls button{appearance:none;color:var(--ink-muted);font:inherit;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:999px;padding:.25rem .7rem;font-size:.85rem;font-weight:600}.region-controls button[aria-pressed=true]{background:var(--white);border-color:var(--border);color:var(--teal-dark)}.site-footer{border-top:1px solid var(--border);background:var(--cream-dark);color:var(--ink-muted);margin-top:4rem;padding:2.5rem 0 2rem;font-size:.92rem}.footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:1.5rem;display:grid}.footer-grid h2{font-family:var(--font-sans);text-transform:uppercase;letter-spacing:.06em;color:var(--ink);margin:0 0 .75rem;font-size:.8rem}.footer-grid ul{margin:0;padding:0;list-style:none}.footer-grid li{margin-bottom:.35rem}.footer-grid a{color:var(--ink-muted);text-decoration:none}.footer-grid a:hover{color:var(--teal-dark)}.footer-note{border-top:1px solid var(--border);margin-top:2rem;padding-top:1.25rem;font-size:.85rem}.hero{padding:3.25rem 0 2rem}.hero-grid{grid-template-columns:1.3fr 1fr;align-items:center;gap:2rem;display:grid}.hero-panel{padding:1.5rem}.hero-panel h2{font-size:1.2rem;font-family:var(--font-sans);margin-top:0}.hero-panel ol{margin:0;padding-left:1.1rem}.fact-grid{grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:1rem;margin:2rem 0;display:grid}.fact-card{padding:1.15rem 1.2rem}.fact-card h3{margin:.4rem 0 .45rem;font-size:1.1rem}.fact-card p{color:var(--ink-muted);margin:0;font-size:.95rem}.product-grid{grid-template-columns:repeat(auto-fit,minmax(17rem,1fr));gap:1.15rem;display:grid}.product-card{flex-direction:column;gap:.75rem;min-height:100%;padding:1.25rem 1.3rem;display:flex}.product-card header{flex-wrap:wrap;align-items:center;gap:.4rem;display:flex}.product-card h3{margin:0;font-size:1.2rem}.product-card .brand{color:var(--ink-muted);margin:0;font-size:.9rem}.product-card .dose{margin:0;font-size:.95rem;font-weight:600}.product-card .why{color:var(--ink-muted);flex:1;margin:0;font-size:.95rem}.product-card footer{flex-direction:column;gap:.55rem;margin-top:.5rem;display:flex}.commission{color:var(--ink-muted);margin:0;font-size:.78rem}.page-header{border-bottom:1px solid var(--border);margin-bottom:2rem;padding:2.5rem 0 1rem}.page-header p{max-width:var(--max);color:var(--ink-muted);margin-bottom:0}.content-wrap{padding-bottom:3rem}.toc{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);max-width:var(--max);margin:0 0 2rem;padding:1rem 1.15rem}.toc h2{font-family:var(--font-sans);text-transform:uppercase;letter-spacing:.06em;margin:0 0 .6rem;font-size:.8rem}.toc ul{margin:0;padding-left:1.1rem}.diagram{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:28rem;margin:1.5rem 0;padding:1rem;display:block}.related{border-top:1px solid var(--border);max-width:var(--max);margin-top:3rem;padding-top:1.5rem}.related ul{gap:.35rem;padding:0;list-style:none;display:grid}@media (width<=820px){.hero-grid,.footer-grid{grid-template-columns:1fr}.nav-toggle{display:inline-flex}.nav{flex-direction:column;align-items:flex-start;width:100%;padding-bottom:.75rem;display:none}.nav.is-open{display:flex}.header-inner{flex-wrap:wrap}}