:root{
  --teal: #1F6F63;
  --teal-deep: #14504A;
  --cream: #FAF6EF;
  --panel: #FFFFFF;
  --gold: #C89B3C;
  --ink: #2B2B28;
  --muted: #6B6558;
  --line: #E7E0D2;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(43,43,40,.06), 0 8px 24px -12px rgba(43,43,40,.18);
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --serif: "Lora", Georgia, "Times New Roman", serif;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--teal-deep); }
a:hover { color: var(--gold); }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}
.brand {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 20px;
  color: var(--ink);
  text-decoration: none;
}
.brand span { color: var(--teal); }
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}
.main-nav a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 15px;
}
.main-nav a:hover { color: var(--teal); }

/* Disclosure ribbon */
.disclosure-ribbon {
  background: var(--teal-deep);
  color: #F3EFE4;
  font-size: 13px;
  text-align: center;
  padding: 8px 16px;
}
.disclosure-ribbon a { color: #F3EFE4; text-decoration: underline; }

/* Hero */
.hero {
  padding: 64px 0 48px;
  text-align: center;
}
.hero .eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(30px, 5vw, 46px);
  margin: 0 0 16px;
  line-height: 1.15;
}
.hero p {
  max-width: 60ch;
  margin: 0 auto;
  color: var(--muted);
  font-size: 17px;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin: 40px 0;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}
.card h3 {
  font-family: var(--serif);
  margin-top: 0;
}
.card p { color: var(--muted); font-size: 15px; }
.card a.btn { margin-top: 12px; }

/* Buttons */
.btn {
  display: inline-block;
  background: var(--teal);
  color: #fff;
  padding: 11px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
}
.btn:hover { background: var(--teal-deep); color: #fff; }
.btn-gold {
  background: var(--gold);
  color: #2B2B28;
}
.btn-gold:hover { background: #B08A34; }

/* Article */
.article-header {
  padding: 48px 0 24px;
  border-bottom: 1px solid var(--line);
}
.article-header .eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gold);
}
.article-header h1 {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 38px);
  margin: 10px 0 14px;
}
.byline {
  color: var(--muted);
  font-size: 14px;
}
.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 0 60px;
  font-size: 17px;
}
.article-body h2 {
  font-family: var(--serif);
  margin-top: 40px;
}
.article-body h3 { margin-top: 28px; }
.article-body ul, .article-body ol { padding-left: 22px; }

.medical-disclaimer {
  background: #FFF8E8;
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 14px;
  color: var(--muted);
  margin: 28px 0;
}

.citations {
  font-size: 13px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 16px;
  margin-top: 40px;
}

.affiliate-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--teal);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin: 24px 0;
}
.affiliate-box p { margin: 0; font-size: 14px; color: var(--muted); }

/* Comparison tables */
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 15px;
}
.article-body th, .article-body td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
}
.article-body th {
  font-family: var(--serif);
  background: var(--panel);
  color: var(--ink);
}
.article-body tr:last-child td { border-bottom: none; }
.article-body table { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }

/* Footer */
.site-footer {
  background: var(--teal-deep);
  color: #E4E0D2;
  padding: 40px 0;
  margin-top: 60px;
  font-size: 14px;
}
.site-footer a { color: #fff; }
.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .main-nav ul { gap: 16px; }
  .site-header .container { flex-direction: column; gap: 10px; align-items: flex-start; }
}