@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600&display=swap');

/* ============ CLINICAL LIGHT — tokens ============ */
:root {
  --paper: #F7F6F2;
  --paper-2: #FFFFFF;
  --ink: #1A2420;
  --ink-soft: #4B5751;
  --ink-faint: #8A938D;
  --clinic: #1F6B4C;
  --clinic-deep: #16503A;
  --clinic-soft: #E9F1EC;
  --clinic-mid: #8FBDA8;
  --line: #E6E4DD;
  --line-soft: #EEEDE7;
  --amber: #C6803A;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;

  --shadow-sm: 0 1px 3px rgba(26,36,32,0.05), 0 6px 20px rgba(26,36,32,0.04);
  --shadow-md: 0 4px 12px rgba(26,36,32,0.06), 0 18px 44px rgba(26,36,32,0.07);
  --radius: 16px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper); color: var(--ink);
  font-family: var(--font-body); font-weight: 400; line-height: 1.65;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
::selection { background: var(--clinic-soft); color: var(--clinic-deep); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
.container { width: min(1180px, 92vw); margin: 0 auto; }
em { font-style: italic; }

/* ============ NAV ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(247,246,242,0); transition: background .4s ease, box-shadow .4s ease, border-color .4s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(247,246,242,0.92); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom-color: var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; }
.nav-logo { font-family: var(--font-display); font-weight: 600; font-size: 25px; letter-spacing: -0.01em; color: var(--clinic-deep); }
.nav-logo span { color: var(--clinic); }
.nav-links { display: flex; gap: 34px; align-items: center; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--ink-soft); transition: color .2s ease; }
.nav-links a:hover { color: var(--clinic); }
.nav-cta {
  background: var(--clinic); color: #fff; border: none; font-size: 14px; font-weight: 500;
  padding: 11px 22px; border-radius: 100px; transition: background .2s ease, transform .2s ease;
}
.nav-cta:hover { background: var(--clinic-deep); transform: translateY(-1px); }
@media (max-width: 780px) { .nav-links a:not(.nav-cta) { display: none; } }

/* ============ HERO (split, editorial, product-forward) ============ */
.hero { padding: 150px 0 90px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 64px; align-items: center; }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px; background: var(--clinic-soft); color: var(--clinic-deep);
  font-size: 13px; font-weight: 500; padding: 7px 16px; border-radius: 100px; margin-bottom: 26px;
}
.hero-eyebrow b { font-weight: 600; }
.hero h1 {
  font-family: var(--font-display); font-weight: 500; font-size: clamp(40px, 5.6vw, 68px);
  line-height: 1.06; letter-spacing: -0.015em; color: var(--ink); margin-bottom: 22px;
}
.hero h1 em { color: var(--clinic); font-style: italic; }
.hero-lead { font-size: 18px; color: var(--ink-soft); max-width: 500px; margin-bottom: 34px; }
.hero-ctas { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; margin-bottom: 38px; }
.btn-primary {
  background: var(--clinic); color: #fff; font-size: 15px; font-weight: 500; padding: 15px 30px;
  border-radius: 100px; border: none; transition: background .2s ease, transform .2s ease; display: inline-block;
}
.btn-primary:hover { background: var(--clinic-deep); transform: translateY(-2px); }
.btn-ghost { font-size: 15px; font-weight: 500; color: var(--clinic-deep); border-bottom: 1.5px solid var(--clinic-mid); padding-bottom: 3px; transition: border-color .2s ease; }
.btn-ghost:hover { border-color: var(--clinic); }
.hero-trust { display: flex; gap: 26px; flex-wrap: wrap; }
.hero-trust div { font-size: 14px; color: var(--ink-soft); }
.hero-trust b { font-family: var(--font-display); font-weight: 600; color: var(--ink); font-size: 17px; display: block; }
.hero-media { position: relative; }
.hero-media img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow-md); background: var(--paper-2); }
.hero-media-badge {
  position: absolute; bottom: -18px; left: 24px; background: var(--paper-2); box-shadow: var(--shadow-sm);
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 18px; font-size: 13px; color: var(--ink-soft);
}
.hero-media-badge b { font-family: var(--font-display); color: var(--clinic); font-weight: 600; }

/* ============ MARQUEE / assurance bar ============ */
.assurance { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-2); }
.assurance-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; padding: 26px 0; }
.assurance-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink-soft); font-weight: 500; }
.assurance-item svg { color: var(--clinic); flex-shrink: 0; }

/* ============ SECTION SHELL ============ */
.section { padding: 100px 0; }
.section-eyebrow { font-size: 13px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--clinic); margin-bottom: 16px; }
.section-title { font-family: var(--font-display); font-weight: 500; font-size: clamp(30px, 4vw, 46px); line-height: 1.1; letter-spacing: -0.015em; margin-bottom: 18px; }
.section-title em { color: var(--clinic); font-style: italic; }
.section-intro { font-size: 17px; color: var(--ink-soft); max-width: 560px; margin-bottom: 56px; }

/* ============ PRODUCT GRID ============ */
.products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
@media (max-width: 900px) { .products { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .products { grid-template-columns: 1fr; } }
.pcard {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.pcard:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--clinic-mid); }
.pcard.featured { border-color: var(--clinic-mid); box-shadow: var(--shadow-sm); }
.pcard-media { position: relative; background: var(--clinic-soft); aspect-ratio: 5/4; overflow: hidden; }
.pcard-media img { width: 100%; height: 100%; object-fit: cover; }
.pcard-tag {
  position: absolute; top: 14px; left: 14px; background: var(--paper-2); color: var(--clinic-deep);
  font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 100px; box-shadow: var(--shadow-sm);
}
.pcard-body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.pcard-compound { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--clinic); margin-bottom: 8px; }
.pcard-name { font-family: var(--font-display); font-weight: 600; font-size: 24px; letter-spacing: -0.01em; margin-bottom: 6px; }
.pcard-micro { font-size: 14.5px; color: var(--ink-soft); margin-bottom: 16px; }
.pcard-benefits { list-style: none; margin-bottom: 20px; }
.pcard-benefits li { font-size: 13.5px; color: var(--ink-soft); padding: 5px 0 5px 22px; position: relative; }
.pcard-benefits li::before { content: ''; position: absolute; left: 2px; top: 12px; width: 7px; height: 7px; border-radius: 50%; background: var(--clinic-mid); }
.pcard-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 16px; border-top: 1px solid var(--line-soft); }
.pcard-price { font-family: var(--font-display); font-weight: 600; font-size: 22px; }
.pcard-price span { font-size: 13px; color: var(--ink-faint); font-family: var(--font-body); }
.pcard-btns { display: flex; gap: 8px; align-items: center; }
.btn-cart { background: var(--clinic); color: #fff; border: none; font-size: 13px; font-weight: 500; padding: 9px 16px; border-radius: 100px; transition: background .2s ease; }
.btn-cart:hover { background: var(--clinic-deep); }
.btn-view { font-size: 13px; font-weight: 500; color: var(--clinic-deep); }
.btn-view:hover { color: var(--clinic); }

/* ============ HOW IT WORKS ============ */
.how { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 52px; }
@media (max-width: 800px) { .how-grid { grid-template-columns: 1fr; } }
.how-step { }
.how-num { font-family: var(--font-display); font-weight: 500; font-size: 20px; color: var(--clinic); width: 46px; height: 46px; border: 1.5px solid var(--clinic-mid); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.how-step h3 { font-family: var(--font-display); font-weight: 600; font-size: 21px; margin-bottom: 10px; }
.how-step p { font-size: 15px; color: var(--ink-soft); }

/* ============ SCIENCE / citation strip ============ */
.science-band { }
.cite-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 52px; }
@media (max-width: 760px) { .cite-grid { grid-template-columns: 1fr; } }
.cite-card { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.cite-source { font-size: 12.5px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--clinic); margin-bottom: 14px; }
.cite-quote { font-family: var(--font-display); font-weight: 400; font-size: 19px; line-height: 1.5; color: var(--ink); margin-bottom: 14px; }
.cite-note { font-size: 14px; color: var(--ink-soft); }

/* ============ GUARANTEE ============ */
.guarantee { text-align: center; }
.guarantee-inner { background: var(--clinic-soft); border-radius: 24px; padding: 72px 40px; }
.guarantee-inner .section-eyebrow { color: var(--clinic-deep); }
.guarantee h2 { font-family: var(--font-display); font-weight: 500; font-size: clamp(28px, 4vw, 44px); letter-spacing: -0.015em; margin-bottom: 18px; }
.guarantee p { font-size: 17px; color: var(--ink-soft); max-width: 540px; margin: 0 auto 32px; }

/* ============ REVIEWS ============ */
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 52px; }
@media (max-width: 860px) { .reviews-grid { grid-template-columns: 1fr; } }
.rcard { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.rcard-stars { color: var(--amber); letter-spacing: 2px; margin-bottom: 14px; font-size: 15px; }
.rcard blockquote { font-size: 15.5px; line-height: 1.6; color: var(--ink); margin-bottom: 18px; }
.rcard cite { font-style: normal; font-size: 13px; color: var(--ink-faint); font-weight: 500; }

/* ============ FAQ ============ */
.faq-list { max-width: 760px; margin-top: 40px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q { width: 100%; background: none; border: none; text-align: left; padding: 24px 0; font-family: var(--font-display); font-weight: 600; font-size: 19px; color: var(--ink); display: flex; justify-content: space-between; gap: 20px; align-items: center; }
.faq-chevron { color: var(--clinic); transition: transform .25s ease; flex-shrink: 0; }
.faq-q[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a.open { max-height: 400px; }
.faq-a p { font-size: 15.5px; color: var(--ink-soft); padding-bottom: 24px; }

/* ============ FOOTER ============ */
.footer { background: var(--clinic-deep); color: #EAF2ED; padding: 72px 0 40px; }
.footer a { color: rgba(234,242,237,0.75); }
.footer a:hover { color: #fff; }
.footer-top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.12); }
.footer-logo { font-family: var(--font-display); font-weight: 600; font-size: 24px; color: #fff; }
.footer-tag { font-size: 14px; color: rgba(234,242,237,0.6); margin-top: 6px; }
.footer-nav { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-col h4 { font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(234,242,237,0.5); margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14.5px; padding: 5px 0; }
.footer-legal { padding-top: 32px; font-size: 13px; color: rgba(234,242,237,0.55); line-height: 1.7; }

/* ============ PDP-specific (reused for product pages) ============ */
.pdp-hero { padding: 140px 0 60px; }
.pdp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
@media (max-width: 860px) { .pdp-grid { grid-template-columns: 1fr; gap: 36px; } }
.pdp-gallery-main { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); background: var(--clinic-soft); }
.pdp-gallery-main img { width: 100%; display: block; }
.pdp-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 14px; }
.pdp-thumb { border-radius: 10px; overflow: hidden; border: 1px solid var(--line); background: var(--clinic-soft); aspect-ratio: 1; cursor: pointer; transition: border-color .2s ease; }
.pdp-thumb:hover { border-color: var(--clinic); }
.pdp-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pdp-breadcrumb { font-size: 13px; color: var(--ink-faint); margin-bottom: 18px; }
.pdp-breadcrumb a:hover { color: var(--clinic); }
.pdp-compound { font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--clinic); margin-bottom: 12px; }
.pdp-title { font-family: var(--font-display); font-weight: 500; font-size: clamp(36px, 5vw, 54px); letter-spacing: -0.02em; line-height: 1.05; margin-bottom: 14px; }
.pdp-lead { font-size: 18px; color: var(--ink-soft); margin-bottom: 26px; }
.pdp-price { font-family: var(--font-display); font-weight: 600; font-size: 32px; margin-bottom: 4px; }
.pdp-price span { font-size: 15px; color: var(--ink-faint); font-family: var(--font-body); }
.pdp-format { display: inline-flex; font-size: 13px; color: var(--ink-soft); background: var(--clinic-soft); border-radius: 100px; padding: 8px 16px; margin: 18px 0; font-weight: 500; }
.pdp-buy { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.btn-buy { background: var(--clinic); color: #fff; border: none; font-size: 15px; font-weight: 500; padding: 15px 34px; border-radius: 100px; transition: background .2s ease, transform .2s ease; }
.btn-buy:hover { background: var(--clinic-deep); transform: translateY(-2px); }
.btn-wish { background: transparent; border: 1.5px solid var(--line); color: var(--ink-soft); font-size: 15px; font-weight: 500; padding: 14px 26px; border-radius: 100px; transition: border-color .2s ease; }
.btn-wish:hover { border-color: var(--clinic-mid); }
.pdp-guarantee-line { font-size: 14px; color: var(--ink-soft); }
.page-wrap { padding: 140px 0 90px; }
.page-wrap h1 { font-family: var(--font-display); font-weight: 500; font-size: clamp(34px,5vw,52px); letter-spacing: -0.02em; margin-bottom: 30px; }
.page-eyebrow { font-size: 13px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--clinic); margin-bottom: 14px; }
.prose { max-width: 720px; }
.prose h2 { font-family: var(--font-display); font-weight: 600; font-size: 25px; margin: 40px 0 14px; }
.prose p, .prose li { font-size: 16px; color: var(--ink-soft); margin-bottom: 14px; }
.prose ul { padding-left: 22px; margin-bottom: 14px; }
.prose a { color: var(--clinic); border-bottom: 1px solid var(--clinic-mid); }
.prose .last-updated { font-size: 13px; color: var(--ink-faint); margin-bottom: 36px; }