:root{
  --bg:#f7faf9; --bg-elev:#ffffff; --ink:#1a1f1e; --muted:#5c6b68;
  --brand:#165a4a; --brand-2:#8ac6b8; --brand-3:#f3faf8;
  --card:#ffffff; --ring: rgba(22,90,74,.35);
  --shadow: 0 10px 25px rgba(0,0,0,.06), 0 4px 10px rgba(0,0,0,.04);
  --radius:16px; --radius-sm:12px; --radius-lg:22px; --maxw:1100px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";
  color:var(--ink);
  background:linear-gradient(180deg,var(--bg),#eef6f3 60%,var(--bg));
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* Topbar */
.topbar{position:sticky;top:0;z-index:50;backdrop-filter:saturate(180%) blur(8px);
  background:color-mix(in srgb, var(--bg-elev) 75%, transparent);
  border-bottom:1px solid rgba(0,0,0,.06)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0}
.brand{display:flex;align-items:center;gap:12px;font-weight:700}
.brand-badge{width:38px;height:38px;border-radius:50%;
  background: radial-gradient(120% 120% at 10% 10%, #2a876f, var(--brand));
  display:grid;place-items:center;color:#fff;box-shadow:var(--shadow)}
.brand-badge svg{opacity:.95}
.nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.nav a{color:var(--ink);opacity:.85}
.nav a:hover{opacity:1}
.cta{display:flex;gap:10px;flex-wrap:wrap}
.btn{border:1px solid rgba(0,0,0,.1);padding:10px 14px;border-radius:12px;background:#fff;color:var(--ink);
  box-shadow:var(--shadow);text-decoration:none;font-weight:600}
.btn.brand{background:var(--brand);border-color:transparent;color:#fff}
.btn.brand:hover{filter:brightness(1.05)}
.btn:hover{transform:translateY(-1px)}
.select{appearance:none;background:#fff;border:1px solid rgba(0,0,0,.12);border-radius:12px;
  padding:10px 40px 10px 12px;position:relative;font-weight:600;color:#2a2e2d;min-width:260px}
.select-wrap{position:relative}
.select-wrap:after{content:"▾";position:absolute;right:12px;top:50%;translate:0 -50%;pointer-events:none;color:var(--muted)}

/* Hero */
.hero{position:relative;overflow:hidden;border-radius:var(--radius-lg);margin:18px auto;box-shadow:var(--shadow);background:var(--brand-3)}
.hero-media{position:absolute;inset:0;z-index:0;opacity:.16;background:var(--hero-image, url("../images/images137.JPG")) center/cover no-repeat;filter:saturate(80%) contrast(90%)}
.hero-grad{position:absolute;inset:0;background:
  radial-gradient(80% 60% at 20% 20%, rgba(255,255,255,.65), transparent 60%),
  linear-gradient(180deg, rgba(22,90,74,.15), rgba(22,90,74,.0) 60%, rgba(22,90,74,.18));z-index:1}
.hero-inner{position:relative;z-index:2;padding:54px 24px}
.hero h1{margin:0 0 8px 0;font-size:clamp(28px, 3.4vw, 44px);line-height:1.15;letter-spacing:-.01em;color:#0d2e27}
.subtitle{color:#25423c;max-width:780px;font-size:clamp(15px,1.35vw,18px)}
.pill{display:inline-flex;align-items:center;gap:10px;background:#fff;border-radius:999px;padding:8px 12px;margin-bottom:14px;
  border:1px solid rgba(0,0,0,.06);box-shadow:var(--shadow);font-weight:700;color:#134b3e}

/* Layout */
.grid{display:grid;grid-template-columns:260px 1fr;gap:24px;margin:26px 0 40px}
@media (max-width:960px){.grid{grid-template-columns:1fr}}

/* Sidebar / TOC */
.toc{position:sticky;top:80px;align-self:start;background:var(--card);border-radius:var(--radius);
  padding:16px;border:1px solid rgba(0,0,0,.06);box-shadow:var(--shadow)}
.toc h3{margin:0 0 8px 0;font-size:14px;letter-spacing:.05em;color:var(--muted);text-transform:uppercase}
.toc a{display:block;padding:10px 8px;border-radius:10px;color:#143e35;font-weight:600}
.toc a:hover{background:#f0f6f4}
.toc a.active{background:#e6f3ef;border:1px solid var(--ring)}

/* Content */
.card{background:var(--card);border-radius:var(--radius);padding:22px;border:1px solid rgba(0,0,0,.06);
  box-shadow:var(--shadow);margin-bottom:18px}
h2{margin:0 0 12px 0;font-size:clamp(20px,2vw,26px);line-height:1.2;letter-spacing:-.01em}
p{margin:8px 0;color:#2a2f2e}
ul{margin:10px 0 0 20px}
li{margin:6px 0}
.callout{border-left:4px solid var(--brand);background:#f3fbf8;padding:14px;border-radius:12px}

/* Remedy cards */
.remedies{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media (max-width:980px){.remedies{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.remedies{grid-template-columns:1fr}}
.remedy{background:#fff;border:1px solid rgba(0,0,0,.06);border-radius:14px;box-shadow:var(--shadow);padding:16px}
.remedy h4{margin:2px 0 8px 0}
.remedy small{color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.04em}

/* Footer */
footer{margin:40px 0 0 0;background:linear-gradient(180deg,#eff7f4,#e8f2ee);border-top:1px solid rgba(0,0,0,.06)}
.footer-inner{padding:26px 0;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.links,.social{display:flex;gap:14px;flex-wrap:wrap}
.links a{color:#2c3c39}
.social a{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;
  border:1px solid rgba(0,0,0,.08);background:#fff;box-shadow:var(--shadow)}
.copy{color:#50625e;font-size:14px}

/* Back to top */
.fab{position:fixed;right:18px;bottom:18px;width:48px;height:48px;border-radius:50%;
  background:var(--brand);color:#fff;display:grid;place-items:center;
  box-shadow:var(--shadow);cursor:pointer;transform:translateY(20px);opacity:0;transition:.2s}
.fab.show{transform:translateY(0);opacity:1}
.sr-only{position:absolute !important;height:1px;width:1px;overflow:hidden;clip:rect(1px,1px,1px,1px)}