:root{--ink:#18332b;--muted:#5c6f68;--leaf:#2f6b52;--sage:#eaf2ed;--sand:#f7f2e8;--line:#dce6e0;--white:#fff;--gold:#a87932}
*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.7}
a{color:var(--leaf);text-decoration-thickness:1px;text-underline-offset:3px}.wrap{max-width:1180px;margin:auto;padding:0 22px}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}
.nav{height:68px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;font-weight:850;font-size:21px;text-decoration:none;color:var(--ink)}
.logo{width:34px;height:34px}.navlinks{margin-left:auto;display:flex;gap:20px;font-size:14px}.hero{background:linear-gradient(135deg,var(--sand),var(--sage));padding:64px 0;border-bottom:1px solid var(--line)}
.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.12em;font-weight:800;color:var(--leaf)}h1{font-size:clamp(36px,6vw,68px);line-height:1.04;letter-spacing:-.04em;margin:10px 0 18px;max-width:900px}
h2{font-size:31px;line-height:1.15;letter-spacing:-.025em;margin-top:52px}h3{font-size:21px;margin-top:30px}.lede{font-size:20px;color:#355048;max-width:820px}
.grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:46px;align-items:start}.content{max-width:760px;padding:44px 0 80px}.side{position:sticky;top:92px;margin-top:44px}
.card{border:1px solid var(--line);border-radius:18px;padding:22px;background:#fff;box-shadow:0 10px 35px rgba(24,51,43,.07)}.card h3{margin-top:0}
.btn{display:inline-block;background:var(--leaf);color:white!important;text-decoration:none;font-weight:800;padding:14px 19px;border-radius:10px;text-align:center}.btn.block{display:block;width:100%}
.note{background:var(--sage);border-left:4px solid var(--leaf);padding:18px 20px;border-radius:0 12px 12px 0;margin:28px 0}.disclosure{font-size:13px;color:var(--muted)}
.toc{background:#fafcfb;border:1px solid var(--line);padding:20px;border-radius:14px;margin:28px 0}.toc a{display:block;margin:6px 0}
table{border-collapse:collapse;width:100%;margin:24px 0;font-size:15px}th,td{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}th{background:var(--sage)}
.breadcrumbs{font-size:13px;color:var(--muted);padding-top:24px}.related{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.related a{border:1px solid var(--line);padding:14px;border-radius:10px;text-decoration:none}
footer{background:#102820;color:#dbe7e1;padding:46px 0}footer a{color:#fff}.footgrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.popup{position:fixed;inset:0;background:rgba(8,25,20,.72);z-index:100;display:none;place-items:center;padding:20px}.popup.show{display:grid}.popupbox{max-width:780px;background:#fff;border-radius:24px;overflow:hidden;display:grid;grid-template-columns:1fr 1fr;box-shadow:0 30px 100px rgba(0,0,0,.35)}.popvisual{background:linear-gradient(145deg,#dcebdd,#f7f2e8);padding:34px;display:flex;align-items:center;justify-content:center}.popbody{padding:34px}.close{float:right;border:0;background:#eef3ef;border-radius:50%;width:34px;height:34px;cursor:pointer}
.layer-art{width:100%;max-width:340px}.layer{height:38px;border-radius:12px;margin:7px 0;border:1px solid rgba(24,51,43,.12)}.cotton{background:#fff}.wool{background:#eee3ca}.latex{background:#cce2b6;height:70px}.coils{background:repeating-linear-gradient(90deg,#dbe2df 0 12px,#fff 12px 20px);height:105px}
@media(max-width:850px){.navlinks{display:none}.grid{grid-template-columns:1fr}.side{position:static;margin:0 0 50px}.content{padding-bottom:20px}.popupbox{grid-template-columns:1fr}.popvisual{display:none}.related{grid-template-columns:1fr}.footgrid{grid-template-columns:1fr}h1{font-size:42px}}

.header-cta{margin-left:4px;white-space:nowrap;padding:10px 14px;font-size:14px}
@media(max-width:850px){.header-cta{display:inline-block;margin-left:auto;padding:9px 12px;font-size:13px}.nav{gap:10px}}