:root{--ink:#17212a;--muted:#66737d;--line:#dce3e7;--paper:#fff;--wash:#f4f7f8;--deep:#123e4e;--accent:#1c6279;--soft:#e9f1f4}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);line-height:1.65}a{color:var(--deep)}.wrap{width:min(1160px,92%);margin:auto}.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:15px 0}.brand{font-weight:800;text-decoration:none;letter-spacing:-.02em}.navlinks{display:flex;gap:18px;align-items:center;flex-wrap:wrap}.navlinks a{text-decoration:none;font-size:.94rem;font-weight:650}.hero{padding:90px 0 72px;background:linear-gradient(180deg,#fff 0%,#f5f8f9 100%)}.hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:58px;align-items:center}.eyebrow{font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;color:var(--accent);font-weight:800;margin:0 0 10px}h1{font-size:clamp(2.65rem,5.4vw,5rem);line-height:1.02;letter-spacing:-.045em;margin:.1em 0 .3em}h2{font-size:clamp(2rem,3.8vw,3.35rem);line-height:1.08;letter-spacing:-.035em;margin:.15em 0 .55em}h3{font-size:1.15rem;margin:0 0 8px}.lead{font-size:1.22rem;color:var(--muted);max-width:780px}.actions{display:flex;gap:18px;align-items:center;margin-top:28px;flex-wrap:wrap}.btn{background:var(--deep);color:#fff;text-decoration:none;padding:12px 18px;border-radius:9px;font-weight:750}.secondary{font-weight:700;text-decoration:none}.portrait{background:#fff;border:1px solid var(--line);padding:14px;border-radius:20px;box-shadow:0 18px 42px rgba(15,50,65,.08)}.portrait-img{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:center top;border-radius:14px;display:block}.portrait small{display:block;color:var(--muted);padding:10px 5px 2px}.section{padding:80px 0}.alt{background:var(--wash)}.narrow{width:min(820px,92%);margin:auto}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{border:1px solid var(--line);border-radius:15px;padding:22px;background:#fff}.card p{color:var(--muted);margin-bottom:0}.fact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:30px}.fact{border-top:2px solid var(--deep);padding:15px 2px 0}.fact b,.fact span{display:block}.fact span{color:var(--muted);font-size:.94rem;margin-top:4px}.treatment-links{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}.treatment-links a{display:block;border:1px solid var(--line);border-radius:14px;padding:20px;text-decoration:none;background:#fff}.treatment-links strong{display:block;margin-bottom:5px}.treatment-links span{color:var(--muted);font-size:.95rem}.page-hero{padding:68px 0 48px;background:var(--wash);border-bottom:1px solid var(--line)}.page-hero p{max-width:780px;color:var(--muted);font-size:1.12rem}.content{padding:62px 0}.content-grid{display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:start}.content p,.content li{color:#3f4b54}.article h2{margin-top:42px}.article h2:first-child{margin-top:0}.article ul{padding-left:22px}.sidebar{border:1px solid var(--line);border-radius:14px;padding:20px;background:#fff;position:sticky;top:86px}.sidebar h3{font-size:1rem}.sidebar a{display:block;padding:8px 0;text-decoration:none;border-bottom:1px solid #edf1f3}.sidebar a:last-child{border-bottom:0}.note{background:var(--soft);border-radius:12px;padding:18px 20px;margin:25px 0}.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0 28px}.info-grid .card{height:100%}.references{font-size:.92rem}.footer{border-top:1px solid var(--line);padding:26px 0;color:var(--muted);font-size:.9rem}.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.disclaimer{font-size:.85rem;color:var(--muted);max-width:900px}.social-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.social-row a{border:1px solid var(--line);border-radius:999px;padding:10px 15px;text-decoration:none;font-weight:700;background:#fff}.video-section{margin:50px 0 36px}.video-wrap{position:relative;width:100%;aspect-ratio:16/9;background:#111;border-radius:16px;overflow:hidden}.video-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.video-caption{font-size:.9rem;color:var(--muted);margin-top:10px}.grade-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0 30px}.grade-grid div{border:1px solid var(--line);border-radius:12px;padding:17px;background:#fff}.grade-grid b,.grade-grid span{display:block}.grade-grid span{color:var(--muted);font-size:.94rem;margin-top:4px}
@media(max-width:900px){.navlinks{display:none}.hero-grid,.content-grid,.grid-2{grid-template-columns:1fr}.grid-3,.treatment-links{grid-template-columns:1fr 1fr}.fact-grid{grid-template-columns:1fr 1fr}.sidebar{display:none}.content{padding:36px 0 50px}.article h2{font-size:1.78rem;line-height:1.14;margin-top:34px}.article p{font-size:1.02rem;line-height:1.62}.page-hero{padding:42px 0 28px}.page-hero h1{font-size:2.35rem}.page-hero p{font-size:1.03rem}}
@media(max-width:620px){.grid-3,.treatment-links,.fact-grid,.info-grid,.grade-grid{grid-template-columns:1fr}.hero{padding-top:58px}.video-section h2{font-size:1.75rem}}