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

:root {
  --bg:     #07090D;
  --bg2:    #0B0F16;
  --card:   #0E1520;
  --teal:   #00D4B8;
  --tglow:  rgba(0,212,184,0.12);
  --tbord:  rgba(0,212,184,0.16);
  --acid:   #AAFF00;
  --aglow:  rgba(170,255,0,0.10);
  --white:  #F4F0EA;
  --body:   #8A9BAD;
  --muted:  #5A6A7A;
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--body); line-height: 1.6; overflow-x: hidden; }

/* ── SCROLL ANIMATION ─────────────────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up.d1 { transition-delay: 0.08s; }
.fade-up.d2 { transition-delay: 0.16s; }
.fade-up.d3 { transition-delay: 0.24s; }
.fade-up.d4 { transition-delay: 0.08s; }
.fade-up.d5 { transition-delay: 0.16s; }
.fade-up.d6 { transition-delay: 0.24s; }

/* ── NAV ──────────────────────────────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px; height: 64px;
  background: rgba(7,9,13,0.88); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--tbord);
}
.nav-logo { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 20px; color: var(--teal); letter-spacing: 0.06em; text-decoration: none; }
.nav-logo span { color: var(--white); }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--white); }
.nav-cta { background: var(--teal); color: #07090D; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 13px; padding: 9px 22px; border-radius: 6px; text-decoration: none; letter-spacing: 0.03em; transition: opacity 0.2s; }
.nav-cta:hover { opacity: 0.85; }

/* ── LAYOUT ───────────────────────────────────────────────────────────────── */
section { padding: 96px 48px; }
.container { max-width: 1100px; margin: 0 auto; }
.section-label { font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--teal); margin-bottom: 14px; }
.section-title { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: clamp(26px, 3.5vw, 42px); color: var(--white); line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 18px; }
.section-body { font-size: 17px; line-height: 1.75; max-width: 540px; }

/* ── HERO ─────────────────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center; padding: 120px 48px 80px;
  position: relative; overflow: hidden;
}

/* dot grid */
.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(circle, rgba(0,212,184,0.07) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 100%);
}

/* center vignette to keep text readable */
.hero::before {
  content: '';
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 60% 60% at 50% 50%, rgba(7,9,13,0.75) 0%, transparent 100%);
  z-index: 1;
}

/* pulse rings */
.hero-pulse {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none; z-index: 0;
}
.ring {
  position: absolute; border-radius: 50%;
  border: 1px solid rgba(0,212,184,0.18);
  top: 50%; left: 50%;
  animation: pulse-ring 5s ease-out infinite;
}
.ring.r1 { width: 320px; height: 320px; margin: -160px 0 0 -160px; animation-delay: 0s; }
.ring.r2 { width: 560px; height: 560px; margin: -280px 0 0 -280px; animation-delay: 1.6s; }
.ring.r3 { width: 800px; height: 800px; margin: -400px 0 0 -400px; animation-delay: 3.2s; }

@keyframes pulse-ring {
  0%   { opacity: 0.5; transform: scale(0.85); }
  100% { opacity: 0;   transform: scale(1.15); }
}

/* hero content sits above all layers */
.hero-badge, .hero h1, .hero > p, .hero-actions { position: relative; z-index: 2; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--tglow); border: 1px solid var(--tbord);
  color: var(--teal); font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 6px 16px; border-radius: 100px; margin-bottom: 32px;
}
.hero-badge::before { content: ''; width: 6px; height: 6px; background: var(--teal); border-radius: 50%; }
.hero h1 { font-family: 'Space Grotesk', sans-serif; font-weight: 800; font-size: clamp(36px, 5.5vw, 68px); color: var(--white); line-height: 1.1; max-width: 860px; margin-bottom: 24px; letter-spacing: -0.025em; }
.hero h1 em { font-style: normal; color: var(--teal); }
.hero > p { font-size: 18px; max-width: 520px; margin-bottom: 44px; line-height: 1.75; }
.hero-actions { display: flex; gap: 14px; align-items: center; justify-content: center; flex-wrap: wrap; }

/* ── BUTTONS ──────────────────────────────────────────────────────────────── */
.btn-primary { background: var(--teal); color: #07090D; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 15px; padding: 14px 32px; border-radius: 8px; text-decoration: none; letter-spacing: 0.02em; transition: all 0.2s; display: inline-block; }
.btn-primary:hover { opacity: 0.86; transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--white); font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 15px; padding: 14px 32px; border-radius: 8px; text-decoration: none; letter-spacing: 0.02em; border: 1px solid rgba(244,240,234,0.14); transition: all 0.2s; display: inline-block; }
.btn-secondary:hover { border-color: rgba(244,240,234,0.32); }

/* ── TRUST BAR ────────────────────────────────────────────────────────────── */
.trust-bar { background: var(--bg2); border-top: 1px solid var(--tbord); border-bottom: 1px solid var(--tbord); padding: 18px 48px; }
.trust-bar-inner { max-width: 1100px; margin: 0 auto; display: flex; justify-content: center; align-items: center; gap: 52px; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.trust-item .dot { width: 7px; height: 7px; background: var(--teal); border-radius: 50%; flex-shrink: 0; }

/* ── STAT BLOCK (problem section) ────────────────────────────────────────── */
.stat-block { display: flex; flex-direction: column; gap: 32px; }
.stat-item { border-left: 2px solid var(--tbord); padding-left: 24px; }
.stat-number {
  font-family: 'Space Grotesk', sans-serif; font-weight: 800;
  font-size: 80px; color: var(--teal); line-height: 1;
  letter-spacing: -0.04em;
  text-shadow: 0 0 48px rgba(0,212,184,0.35);
}
.stat-label { font-size: 13px; color: var(--muted); margin-top: 6px; line-height: 1.5; max-width: 260px; }

/* ── PRODUCT CARDS ────────────────────────────────────────────────────────── */
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 52px; }
.product-card {
  background: var(--card); border: 1px solid var(--tbord); border-radius: 12px;
  padding: 30px; transition: all 0.28s; position: relative;
  overflow: hidden; text-decoration: none; display: block;
}
/* top gradient line on hover */
.product-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--teal), transparent);
  opacity: 0; transition: opacity 0.28s;
}
/* watermark number */
.product-card[data-num]::after {
  content: attr(data-num);
  position: absolute; bottom: -24px; right: 16px;
  font-family: 'Space Grotesk', sans-serif; font-weight: 800;
  font-size: 128px; line-height: 1;
  color: rgba(0,212,184,0.045);
  pointer-events: none; user-select: none;
  letter-spacing: -0.05em; z-index: 0;
}
.product-card:hover { border-color: rgba(0,212,184,0.40); transform: translateY(-3px); background: #111A25; box-shadow: 0 12px 40px rgba(0,0,0,0.4); }
.product-card:hover::before { opacity: 1; }

/* keep text above watermark */
.product-card > * { position: relative; z-index: 1; }

.protocol-tag { display: inline-block; font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal); background: var(--tglow); border: 1px solid var(--tbord); padding: 4px 10px; border-radius: 4px; margin-bottom: 18px; }
.product-name { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 21px; color: var(--white); letter-spacing: -0.01em; margin-bottom: 8px; }
.product-tagline { font-size: 14px; line-height: 1.55; margin-bottom: 22px; }
.product-stat { font-size: 12px; color: var(--acid); font-weight: 600; letter-spacing: 0.03em; padding-top: 18px; border-top: 1px solid rgba(255,255,255,0.05); }
.product-link { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: var(--teal); margin-top: 14px; letter-spacing: 0.02em; }
.product-link::after { content: '92'; }

/* ── STEPS ────────────────────────────────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 52px; }
.step { padding: 34px 28px; background: var(--card); border: 1px solid var(--tbord); border-radius: 12px; }
.step-num { font-family: 'Space Grotesk', sans-serif; font-weight: 800; font-size: 44px; color: var(--tbord); line-height: 1; margin-bottom: 18px; letter-spacing: -0.03em; }
.step h3 { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 17px; color: var(--white); margin-bottom: 10px; }
.step p { font-size: 14px; line-height: 1.65; }

/* ── SCIENCE GRID ─────────────────────────────────────────────────────────── */
.science-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 52px; }
.citation-card { background: var(--card); border: 1px solid var(--tbord); border-radius: 10px; padding: 28px; }
.citation-stat { font-family: 'Space Grotesk', sans-serif; font-weight: 800; font-size: 40px; color: var(--acid); letter-spacing: -0.03em; line-height: 1; margin-bottom: 10px; text-shadow: 0 0 32px rgba(170,255,0,0.25); }
.citation-text { font-size: 15px; color: var(--white); line-height: 1.55; margin-bottom: 12px; }
.citation-source { font-size: 11px; color: var(--muted); letter-spacing: 0.05em; text-transform: uppercase; }

/* ── SPECIES SECTION ──────────────────────────────────────────────────────── */
.species-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 52px; max-width: 680px; margin-left: auto; margin-right: auto; }
.species-card { padding: 44px 36px; background: var(--card); border: 1px solid var(--tbord); border-radius: 12px; text-align: center; transition: all 0.28s; }
.species-card:hover { border-color: rgba(0,212,184,0.32); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,0,0,0.35); }
.species-icon { display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; width: 64px; height: 64px; background: var(--tglow); border: 1px solid var(--tbord); border-radius: 50%; }
.species-icon svg { width: 36px; height: 36px; }
.species-name { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 20px; color: var(--white); margin-bottom: 6px; }
.species-sub { font-size: 13px; line-height: 1.55; }

/* ── FAQ ──────────────────────────────────────────────────────────────────── */
.faq-list { margin-top: 52px; display: flex; flex-direction: column; gap: 10px; }
.faq-item { background: var(--card); border: 1px solid var(--tbord); border-radius: 10px; overflow: hidden; }
.faq-q { padding: 20px 26px; font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 15px; color: var(--white); cursor: pointer; display: flex; justify-content: space-between; align-items: center; user-select: none; }
.faq-q::after { content: '+'; color: var(--teal); font-size: 22px; font-weight: 300; transition: transform 0.2s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 26px 22px; font-size: 15px; line-height: 1.7; border-top: 1px solid rgba(255,255,255,0.05); }
.faq-item.open .faq-a { display: block; }

/* ── CTA BANNER ───────────────────────────────────────────────────────────── */
.cta-banner { text-align: center; padding: 96px 48px; border-top: 1px solid var(--tbord); position: relative; overflow: hidden; background: var(--bg2); }
.cta-banner::before { content: ''; position: absolute; bottom: -300px; left: 50%; transform: translateX(-50%); width: 700px; height: 700px; background: radial-gradient(ellipse, rgba(0,212,184,0.07) 0%, transparent 65%); pointer-events: none; }
.cta-banner h2 { font-family: 'Space Grotesk', sans-serif; font-weight: 800; font-size: clamp(26px, 3.5vw, 44px); color: var(--white); line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 18px; max-width: 680px; margin-left: auto; margin-right: auto; }
.cta-banner p { font-size: 17px; max-width: 480px; margin: 0 auto 38px; }

/* ── FOOTER ───────────────────────────────────────────────────────────────── */
footer { background: #040608; border-top: 1px solid rgba(255,255,255,0.05); padding: 64px 48px 40px; }
.footer-inner { max-width: 1100px; margin: 0 auto; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 48px; flex-wrap: wrap; gap: 40px; }
.footer-brand .logo { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 18px; color: var(--teal); letter-spacing: 0.06em; }
.footer-brand .logo span { color: var(--white); }
.footer-tagline { font-size: 13px; color: var(--muted); margin-top: 8px; max-width: 220px; line-height: 1.6; }
.footer-col h4 { font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { font-size: 14px; color: var(--body); text-decoration: none; transition: color 0.2s; }
.footer-col ul a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 28px; }
.disclaimer { font-size: 11px; color: var(--muted); line-height: 1.75; margin-bottom: 14px; max-width: 820px; }
.copyright { font-size: 12px; color: var(--muted); }

/* ── PRODUCT PAGE ─────────────────────────────────────────────────────────── */
.product-hero { padding: 140px 48px 80px; background: var(--bg2); border-bottom: 1px solid var(--tbord); }
.product-hero-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.product-hero h1 { font-family: 'Space Grotesk', sans-serif; font-weight: 800; font-size: clamp(32px, 4vw, 52px); color: var(--white); line-height: 1.1; letter-spacing: -0.025em; margin-bottom: 18px; }
.product-hero p { font-size: 18px; line-height: 1.75; margin-bottom: 32px; }
.product-stats-box { background: var(--card); border: 1px solid var(--tbord); border-radius: 12px; padding: 32px; }
.product-stat-row { display: flex; justify-content: space-between; align-items: flex-start; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.product-stat-row:last-child { border-bottom: none; padding-bottom: 0; }
.product-stat-row:first-child { padding-top: 0; }
.psr-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }
.psr-value { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 15px; color: var(--white); text-align: right; }

.mechanism-section { padding: 80px 48px; }
.mechanism-inner { max-width: 1100px; margin: 0 auto; }
.mechanism-body { font-size: 17px; line-height: 1.8; max-width: 780px; }
.mechanism-body p { margin-bottom: 20px; }

.benefits-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 52px; max-width: 1100px; margin-left: auto; margin-right: auto; }
.benefit-card { background: var(--card); border: 1px solid var(--tbord); border-radius: 10px; padding: 28px; }
.benefit-num { font-family: 'Space Grotesk', sans-serif; font-weight: 800; font-size: 38px; color: var(--acid); letter-spacing: -0.03em; line-height: 1; margin-bottom: 10px; text-shadow: 0 0 28px rgba(170,255,0,0.22); }
.benefit-title { font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 16px; color: var(--white); margin-bottom: 8px; }
.benefit-desc { font-size: 14px; line-height: 1.6; }
.benefit-source { font-size: 11px; color: var(--muted); letter-spacing: 0.04em; text-transform: uppercase; margin-top: 12px; }

.dosing-section { background: var(--bg2); padding: 80px 48px; }
.dosing-table { width: 100%; border-collapse: collapse; margin-top: 32px; font-size: 14px; }
.dosing-table th { text-align: left; padding: 12px 20px; font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--tbord); }
.dosing-table td { padding: 14px 20px; border-bottom: 1px solid rgba(255,255,255,0.04); color: var(--body); }
.dosing-table tr:last-child td { border-bottom: none; }
.dosing-table td:first-child { color: var(--white); font-weight: 600; }
.dosing-note { font-size: 13px; color: var(--muted); margin-top: 20px; line-height: 1.6; padding: 16px 20px; background: var(--tglow); border: 1px solid var(--tbord); border-radius: 8px; }

/* ── BLOG ─────────────────────────────────────────────────────────────────── */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 52px; }
.blog-card { background: var(--card); border: 1px solid var(--tbord); border-radius: 10px; padding: 28px; transition: all 0.25s; text-decoration: none; display: block; }
.blog-card:hover { border-color: rgba(0,212,184,0.32); transform: translateY(-2px); }
.blog-tag { font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal); margin-bottom: 14px; display: block; }
.blog-title { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 18px; color: var(--white); line-height: 1.3; margin-bottom: 10px; }
.blog-excerpt { font-size: 14px; line-height: 1.6; margin-bottom: 20px; }
.blog-meta { font-size: 12px; color: var(--muted); }

/* ── RESPONSIVE ───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  nav { padding: 0 20px; }
  .nav-links { display: none; }
  section { padding: 64px 20px; }
  .hero { padding: 100px 20px 60px; }
  .products-grid, .steps, .science-grid, .benefits-grid, .blog-grid { grid-template-columns: 1fr; }
  .species-cards { grid-template-columns: 1fr; max-width: 100%; }
  .product-hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { flex-direction: column; }
  .trust-bar { padding: 16px 20px; }
  .trust-bar-inner { gap: 20px; }
  .problem-grid { grid-template-columns: 1fr !important; gap: 48px; }
  .stat-number { font-size: 60px; }
}