:root {
  --bg: #FFFFFF;
  --bg-soft: #F4F8F7;
  --ink: #12201C;
  --mute: #5C6B67;
  --line: #DCE7E3;
  --teal: #1F5C52;
  --teal-hover: #16463E;
  --alert: #E0592A;
  --gold: #C9A24B;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-family); color: var(--ink); background-color: var(--bg); line-height: 1.6; }
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { padding-left: 1.5rem; margin-bottom: 1rem; }
p { margin-bottom: 1rem; }
h1, h2, h3, h4 { margin-bottom: 1rem; line-height: 1.2; font-weight: 700; color: var(--ink); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; }
.section { padding: 4rem 0; }
.section-light { background-color: var(--bg-soft); }

/* Header & Trust Bar */
.trust-bar { background-color: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 0.5rem 0; font-size: 0.85rem; color: var(--mute); text-align: center; }
.trust-bar span { display: inline-block; margin: 0 1rem; }

/* MediaGo / native ads disclosure */
.ad-disclosure { background: #E8F0EE; border-bottom: 2px solid var(--line); padding: 1rem 0; text-align: center; color: var(--ink); font-size: 1.05rem; }
.ad-disclosure strong { color: var(--teal); font-weight: 800; text-transform: uppercase; }
.header { border-bottom: 1px solid var(--line); padding: 1rem 0; background: var(--bg); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--teal); letter-spacing: -0.5px; }
.logo span { color: var(--alert); }
.nav-links { display: flex; gap: 1.5rem; }
.nav-links a { color: var(--ink); font-weight: 600; text-transform: uppercase; font-size: 0.9rem; }
.nav-links a:hover { color: var(--teal); text-decoration: none; }

/* Buttons */
.btn { display: inline-block; padding: 0.75rem 1.5rem; font-weight: 600; text-align: center; border-radius: 4px; cursor: pointer; transition: all 0.2s; border: none; }
.btn-primary { background-color: var(--teal); color: #fff; }
.btn-primary:hover { background-color: var(--teal-hover); color: #fff; text-decoration: none; }
.btn-alert { background-color: var(--alert); color: #fff; }
.btn-alert:hover { filter: brightness(0.9); color: #fff; text-decoration: none; }

/* Grid / Cards */
.grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.card { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; display: flex; flex-direction: column; transition: transform 0.2s; }
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }
.card-img { aspect-ratio: 1; object-fit: cover; background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.card-content { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.card-title { font-size: 1.2rem; margin-bottom: 0.5rem; }
.card-price { font-weight: 700; font-size: 1.25rem; color: var(--teal); margin-bottom: 1rem; }
.card-price .old { text-decoration: line-through; color: var(--mute); font-size: 0.9rem; margin-left: 0.5rem; font-weight: 400; }
.card .btn { margin-top: auto; }

/* Product Page layout */
.product-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.product-gallery { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.product-gallery img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.product-info h1 { font-size: 2.5rem; margin-bottom: 0.5rem; }
.product-price { font-size: 2rem; font-weight: 700; color: var(--teal); margin-bottom: 1.5rem; }
.product-desc { font-size: 1.1rem; margin-bottom: 2rem; color: var(--mute); }
.product-benefits { background: var(--bg-soft); padding: 1.5rem; border-radius: 8px; margin-bottom: 2rem; }
.product-benefits ul { list-style: none; padding: 0; margin: 0; }
.product-benefits li { padding-left: 1.5rem; position: relative; margin-bottom: 0.5rem; font-weight: 600; }
.product-benefits li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--line); padding: 1rem 0; }
.faq-q { font-weight: 700; font-size: 1.1rem; margin-bottom: 0.5rem; }

/* Article & Study Pages */
.article-header { text-align: center; margin-bottom: 3rem; }
.article-meta { color: var(--mute); font-size: 0.9rem; margin-bottom: 1rem; }
.article-hero { width: 100%; height: 400px; object-fit: cover; border-radius: 8px; margin-bottom: 3rem; }
.article-body { max-width: 800px; margin: 0 auto; font-size: 1.1rem; }
.article-body h2 { margin-top: 2.5rem; font-size: 1.8rem; }
.article-body p { margin-bottom: 1.5rem; }
.callout { background: var(--bg-soft); border-left: 4px solid var(--teal); padding: 1.5rem; margin: 2rem 0; font-style: italic; }
.callout p:last-child { margin-bottom: 0; }
.study-table { width: 100%; border-collapse: collapse; margin: 2rem 0; }
.study-table th, .study-table td { border: 1px solid var(--line); padding: 1rem; text-align: left; }
.study-table th { background: var(--bg-soft); font-weight: 700; }

/* Footer */
.footer { background: var(--ink); color: #fff; padding: 4rem 0 2rem; margin-top: 4rem; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin-bottom: 3rem; }
.footer-title { color: var(--mute); text-transform: uppercase; font-size: 0.9rem; margin-bottom: 1rem; letter-spacing: 1px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 0.5rem; }
.footer a { color: #fff; opacity: 0.8; }
.footer a:hover { opacity: 1; text-decoration: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 2rem; text-align: center; color: var(--mute); font-size: 0.9rem; }

.footer-legal { margin-top: 1rem; color: var(--mute); font-size: 0.85rem; line-height: 1.6; }

@media (max-width: 768px) {
  .product-hero { grid-template-columns: 1fr; }
  .header-inner { flex-direction: column; gap: 1rem; }
  .nav-links { flex-wrap: wrap; justify-content: center; }
}