/* ============================================================
   Trulogic Labs — clinical lab-clean design system
   ============================================================ */

:root {
  --navy: #0a1f3c;
  --navy-700: #12305c;
  --ink: #0d1b2a;
  --slate: #475569;
  --slate-light: #64748b;
  --line: #e2e8f0;
  --line-soft: #eef2f7;
  --bg: #ffffff;
  --bg-soft: #f7f9fc;
  --bg-panel: #f1f5fb;
  --blue: #2f6bff;
  --blue-dark: #1d4fd8;
  --blue-soft: #e8efff;
  --teal: #0fb5ba;
  --amber: #b7791f;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(13, 27, 42, 0.06);
  --shadow: 0 6px 24px rgba(13, 27, 42, 0.08);
  --shadow-lg: 0 18px 48px rgba(13, 27, 42, 0.12);
  --maxw: 1180px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --display: "Space Grotesk", var(--font);
  --mono: "SFMono-Regular", ui-monospace, "JetBrains Mono", Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { font-family: var(--display); line-height: 1.15; color: var(--navy); font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.1rem, 4.5vw, 3.3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: 1.3rem; }
p { color: var(--slate); }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }

.eyebrow {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--blue);
}

/* ---------- Buttons ---------- */
.btn-primary, .btn-secondary, .btn-nav {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font); font-weight: 600; font-size: 0.95rem;
  padding: 13px 24px; border-radius: var(--radius-sm); cursor: pointer;
  transition: all 0.18s ease; border: 1px solid transparent; white-space: nowrap;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-secondary { background: #fff; color: var(--navy); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--blue); color: var(--blue); }
.btn-nav { background: var(--navy); color: #fff; padding: 10px 18px; font-size: 0.9rem; }
.btn-nav:hover { background: var(--blue); color: #fff; }
.btn-block { width: 100%; justify-content: center; }

/* ---------- Disclaimer bar ---------- */
.disclaimer-bar {
  background: var(--navy); color: #cdd8ea;
  font-size: 0.74rem; letter-spacing: 0.02em; text-align: center; padding: 7px 0;
  font-family: var(--mono);
}

/* ---------- Nav ---------- */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-content { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo-img { height: 30px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--ink); font-weight: 500; font-size: 0.95rem; }
.nav-links a:hover { color: var(--blue); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--navy); border-radius: 2px; }

/* ---------- Hero ---------- */
.hero { background: linear-gradient(180deg, var(--bg-soft) 0%, #fff 100%); padding: 84px 0 64px; border-bottom: 1px solid var(--line-soft); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.hero h1 { margin: 16px 0 18px; }
.hero p.lead { font-size: 1.18rem; color: var(--slate); max-width: 36ch; }
.hero-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 36px; margin-top: 40px; }
.hero-stat .num { font-family: var(--display); font-size: 1.9rem; font-weight: 700; color: var(--navy); }
.hero-stat .label { font-size: 0.82rem; color: var(--slate-light); }
.hero-visual { background: var(--navy); border-radius: var(--radius); padding: 36px; color: #cdd8ea; box-shadow: var(--shadow-lg); position: relative; overflow: hidden; }
.hero-visual::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 80% 0%, rgba(47,107,255,0.35), transparent 55%); }
.hero-visual h3 { color: #fff; position: relative; }
.spec-row { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.1); font-size: 0.9rem; position: relative; }
.spec-row .k { color: #93a4c2; } .spec-row .v { color: #fff; font-family: var(--mono); }

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head.center { margin: 0 auto 48px; text-align: center; }
.section-head h2 { margin: 10px 0 12px; }

/* ---------- Category tiles ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 18px; }
.cat-tile { display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; transition: all 0.18s; }
.cat-tile:hover { border-color: var(--blue); box-shadow: var(--shadow); transform: translateY(-2px); }
.cat-tile h3 { font-size: 1.12rem; margin-bottom: 6px; }
.cat-tile p { font-size: 0.88rem; color: var(--slate-light); margin: 0; }
.cat-tile .count { font-family: var(--mono); font-size: 0.74rem; color: var(--blue); margin-top: 14px; display: inline-block; }

/* ---------- Product grid ---------- */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }
.product-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all 0.18s; }
.product-card:hover { border-color: var(--blue); box-shadow: var(--shadow); transform: translateY(-2px); }
.product-thumb { aspect-ratio: 1/1; background: var(--bg-panel); display: flex; align-items: center; justify-content: center; position: relative; border-bottom: 1px solid var(--line-soft); }
.product-thumb .vial { width: 64px; height: 96px; background: linear-gradient(160deg,#dde7f5,#f5f9ff); border-radius: 8px 8px 10px 10px; position: relative; box-shadow: inset 0 -18px 0 rgba(47,107,255,0.10); }
.product-thumb .vial::before { content:""; position:absolute; top:-8px; left:50%; transform:translateX(-50%); width:34px; height:12px; background:#9fb3d6; border-radius:3px; }
.product-thumb .vial::after { content:""; position:absolute; top:-13px; left:50%; transform:translateX(-50%); width:24px; height:8px; background:#c9d6ec; border-radius:2px; }
.product-img { width: 100%; height: 100%; object-fit: contain; padding: 16px; }
.compound-media .frame img.compound-img { width: 100%; height: 100%; object-fit: contain; padding: 28px; }
.product-cat-tag { position: absolute; top: 12px; left: 12px; font-family: var(--mono); font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.1em; background: #fff; border: 1px solid var(--line); color: var(--slate); padding: 3px 8px; border-radius: 100px; }
.product-body { padding: 16px 18px 18px; flex: 1; display: flex; flex-direction: column; }
.product-body h3 { font-size: 1.05rem; margin-bottom: 2px; }
.product-aka { font-size: 0.78rem; color: var(--slate-light); margin-bottom: 10px; }
.product-doses { font-family: var(--mono); font-size: 0.72rem; color: var(--slate); margin-bottom: 14px; }
.product-cta { margin-top: auto; font-weight: 600; font-size: 0.86rem; color: var(--blue); display: inline-flex; align-items: center; gap: 6px; }

/* ---------- Toolbar / filters ---------- */
.shop-head { padding: 48px 0 12px; background: var(--bg-soft); border-bottom: 1px solid var(--line-soft); }
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; padding: 22px 0; }
.filter-chip { font-size: 0.84rem; font-weight: 500; padding: 7px 15px; border-radius: 100px; border: 1px solid var(--line); background: #fff; color: var(--slate); cursor: pointer; transition: all 0.15s; }
.filter-chip:hover, .filter-chip.active { background: var(--navy); color: #fff; border-color: var(--navy); }

/* ---------- Compound (product + monograph) page ---------- */
.compound-hero { padding: 40px 0 56px; border-bottom: 1px solid var(--line-soft); }
.breadcrumb { font-size: 0.82rem; color: var(--slate-light); margin-bottom: 22px; }
.breadcrumb a { color: var(--slate); } .breadcrumb-sep { margin: 0 8px; color: var(--line); }
.compound-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.compound-media { position: sticky; top: 90px; }
.compound-media .frame { background: var(--bg-panel); border: 1px solid var(--line); border-radius: var(--radius); aspect-ratio: 1/1; display: flex; align-items: center; justify-content: center; }
.compound-media .vial { width: 120px; height: 180px; background: linear-gradient(160deg,#dde7f5,#f5f9ff); border-radius: 12px 12px 16px 16px; position: relative; box-shadow: inset 0 -34px 0 rgba(47,107,255,0.12); }
.compound-media .vial::before { content:""; position:absolute; top:-14px; left:50%; transform:translateX(-50%); width:60px; height:20px; background:#9fb3d6; border-radius:4px; }
.compound-title-row .eyebrow { margin-bottom: 8px; }
.compound-title-row h1 { font-size: clamp(2rem, 4vw, 2.7rem); }
.compound-aka { color: var(--slate-light); font-size: 1rem; margin-top: 6px; }
.compound-summary { margin: 20px 0; font-size: 1.05rem; }
.spec-table { width: 100%; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; margin: 22px 0; }
.spec-table div { display: flex; justify-content: space-between; padding: 11px 16px; font-size: 0.9rem; border-bottom: 1px solid var(--line-soft); }
.spec-table div:last-child { border-bottom: none; }
.spec-table .k { color: var(--slate-light); } .spec-table .v { color: var(--ink); font-family: var(--mono); font-weight: 500; }

/* dose/variant table */
.variant-box { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: var(--bg-soft); margin: 24px 0; }
.variant-box h4 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--slate-light); font-family: var(--mono); margin-bottom: 14px; }
.variant-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.variant-pill { font-family: var(--mono); font-size: 0.82rem; padding: 8px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; color: var(--navy); }
.price-note { font-size: 0.84rem; color: var(--slate-light); margin-top: 4px; text-align: center; }

/* monograph body */
.monograph { max-width: 760px; margin: 56px auto 0; }
.monograph h2 { margin: 40px 0 14px; padding-top: 8px; }
.monograph h3 { margin: 28px 0 10px; }
.monograph p, .monograph li { color: var(--ink); }
.monograph ul, .monograph ol { padding-left: 22px; margin: 12px 0; }
.monograph li { margin-bottom: 7px; }
.proscons { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 24px 0; }
.proscons .col { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 18px 20px; }
.proscons .col h4 { font-family: var(--display); font-size: 1rem; margin-bottom: 10px; }
.proscons .pros h4 { color: var(--teal); } .proscons .cons h4 { color: var(--amber); }
.proscons ul { padding-left: 18px; margin: 0; } .proscons li { font-size: 0.92rem; }
.callout { background: var(--blue-soft); border-left: 3px solid var(--blue); border-radius: var(--radius-sm); padding: 16px 20px; margin: 24px 0; font-size: 0.92rem; color: var(--navy-700); }
.callout.warn { background: #fdf6ec; border-left-color: var(--amber); color: #7a5410; }

/* ---------- Inquiry / contact module ---------- */
.inquiry { background: var(--navy); border-radius: var(--radius); padding: 28px; color: #cdd8ea; }
.inquiry h3 { color: #fff; margin-bottom: 6px; }
.inquiry p { color: #93a4c2; font-size: 0.9rem; margin-bottom: 18px; }
.form-field { margin-bottom: 14px; }
.form-field label { display: block; font-size: 0.8rem; color: #b9c6de; margin-bottom: 6px; font-weight: 500; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; padding: 11px 14px; border-radius: var(--radius-sm); border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06); color: #fff; font-family: var(--font); font-size: 0.92rem;
}
.form-field input::placeholder, .form-field textarea::placeholder { color: #6f80a0; }
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { outline: none; border-color: var(--blue); }

/* ---------- Blog ---------- */
.blog-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.blog-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: #fff; transition: all 0.18s; display: flex; flex-direction: column; }
.blog-card:hover { border-color: var(--blue); box-shadow: var(--shadow); transform: translateY(-2px); }
.blog-card .date { font-family: var(--mono); font-size: 0.74rem; color: var(--slate-light); }
.blog-card h3 { margin: 10px 0 8px; font-size: 1.2rem; }
.blog-card p { font-size: 0.92rem; color: var(--slate); }
.blog-card .more { margin-top: auto; padding-top: 14px; font-weight: 600; font-size: 0.86rem; }

.blog-article { padding: 48px 0 64px; }
.blog-article-header { max-width: 760px; margin: 0 auto 32px; }
.blog-article-title { margin: 16px 0 14px; }
.blog-article-meta { font-size: 0.86rem; color: var(--slate-light); display: flex; gap: 10px; flex-wrap: wrap; }
.blog-article-body { max-width: 760px; margin: 0 auto; }
.blog-article-body h2 { margin: 34px 0 12px; }
.blog-article-body h3 { margin: 26px 0 10px; }
.blog-article-body p, .blog-article-body li { color: var(--ink); }
.blog-article-body ul, .blog-article-body ol { padding-left: 22px; margin: 12px 0; }
.blog-article-body li { margin-bottom: 7px; }
.blog-cta { max-width: 760px; margin: 48px auto 0; background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; text-align: center; }
.blog-post-nav { max-width: 760px; margin: 40px auto 0; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.blog-post-nav-link { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px; }
.blog-post-nav-link.next { text-align: right; }
.blog-post-nav-label { font-size: 0.76rem; color: var(--slate-light); display: block; }
.blog-post-nav-title { font-weight: 600; color: var(--navy); font-size: 0.92rem; }

/* ---------- Generic prose page ---------- */
.page-head { padding: 56px 0 24px; background: var(--bg-soft); border-bottom: 1px solid var(--line-soft); }
.prose { max-width: 760px; margin: 0 auto; padding: 48px 0 64px; }
.prose h2 { margin: 32px 0 12px; } .prose h3 { margin: 24px 0 8px; }
.prose p, .prose li { color: var(--ink); } .prose ul, .prose ol { padding-left: 22px; margin: 12px 0; }
.prose li { margin-bottom: 7px; }

/* ---------- FAQ ---------- */
.faq-item { border-bottom: 1px solid var(--line); padding: 22px 0; max-width: 800px; }
.faq-item h3 { font-size: 1.1rem; margin-bottom: 8px; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--navy); color: #fff; border-radius: var(--radius); padding: 48px; text-align: center; position: relative; overflow: hidden; }
.cta-band::before { content:""; position:absolute; inset:0; background: radial-gradient(circle at 20% 120%, rgba(47,107,255,0.4), transparent 50%); }
.cta-band h2 { color: #fff; position: relative; }
.cta-band p { color: #aab8d4; position: relative; max-width: 50ch; margin: 12px auto 24px; }
.cta-band .btn-primary { position: relative; background: #fff; color: var(--navy); }
.cta-band .btn-primary:hover { background: var(--blue-soft); }

/* ---------- Email capture ---------- */
.email-capture { display: flex; gap: 10px; max-width: 460px; margin-top: 20px; }
.email-capture input { flex: 1; padding: 13px 16px; border: 1px solid var(--line); border-radius: var(--radius-sm); font-size: 0.95rem; }

/* ---------- Footer ---------- */
.footer { background: var(--bg-soft); border-top: 1px solid var(--line); padding: 56px 0 28px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; }
.footer-logo-img { height: 26px; margin-bottom: 14px; }
.footer-tagline { font-size: 0.92rem; color: var(--slate); max-width: 30ch; }
.footer-disclaimer { font-size: 0.78rem; color: var(--slate-light); margin-top: 12px; max-width: 34ch; }
.footer-links-section h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--navy); margin-bottom: 14px; font-family: var(--mono); }
.footer-links-section ul { list-style: none; }
.footer-links-section li { margin-bottom: 9px; }
.footer-links-section a { color: var(--slate); font-size: 0.9rem; }
.footer-links-section a:hover { color: var(--blue); }
.footer-bottom { border-top: 1px solid var(--line); margin-top: 40px; padding-top: 22px; display: flex; flex-direction: column; gap: 8px; }
.footer-bottom p { font-size: 0.8rem; color: var(--slate-light); }
.footer-legal { max-width: 90ch; }

/* ---------- Utilities ---------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.mt-0 { margin-top: 0; } .center { text-align: center; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid, .compound-grid, .grid-2, .proscons { grid-template-columns: 1fr; }
  .compound-media { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .nav-toggle { display: flex; }
  .nav-links { position: fixed; inset: 0 0 0 auto; width: 80%; max-width: 320px; flex-direction: column; align-items: flex-start; background: #fff; padding: 90px 28px; gap: 18px; transform: translateX(100%); transition: transform 0.22s; box-shadow: var(--shadow-lg); }
  body.nav-open .nav-links { transform: translateX(0); }
  .blog-post-nav { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 22px; }
  .email-capture { flex-direction: column; }
  .cta-band, .inquiry { padding: 28px 20px; }
}