/* =============================================================
   THESeries™ — Master Stylesheet
   Brand: Dark, premium, cinematic, science-performance
   Last updated: 2025
   Deploy: Static / AWS Amplify / Astro migration
   ============================================================= */

/* ── Google Fonts ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=DM+Sans:wght@300;400;500;600&family=DM+Mono:wght@300;400;500&display=swap');

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  /* Core palette */
  --black:           #0a0907;
  --charcoal:        #131210;
  --charcoal-mid:    #1c1a17;
  --charcoal-light:  #242220;
  --brown-warm:      #2a2420;
  --brown-mid:       #3d3229;

  /* Accent palette */
  --gold:            #c9a84c;
  --gold-light:      #e0c070;
  --gold-muted:      #8a6e36;
  --amber:           #b87333;
  --burnt-orange:    #c45c28;
  --terracotta:      #a64b2a;
  --olive:           #6b7c45;
  --moss:            #4a5c35;
  --plum:            #5c3d5e;
  --wine:            #6b2d3e;

  /* Text palette */
  --ivory:           #f0ead8;
  --ivory-dim:       #c8bfa8;
  --ivory-faint:     #8a8070;
  --white-soft:      #faf7f0;

  /* Functional */
  --border:          rgba(201, 168, 76, 0.15);
  --border-soft:     rgba(201, 168, 76, 0.08);
  --overlay-dark:    rgba(10, 9, 7, 0.75);
  --overlay-deeper:  rgba(10, 9, 7, 0.88);
  --glass:           rgba(255, 255, 255, 0.03);
  --glass-hover:     rgba(255, 255, 255, 0.055);

  /* Product tones */
  --stride-tone:     #4a7c6f;   /* teal-green for endurance */
  --lift-tone:       #c45c28;   /* burnt orange for performance */
  --sleep-tone:      #5c3d5e;   /* deep plum for recovery */

  /* Typography */
  --font-display:    'Cormorant Garamond', Georgia, serif;
  --font-body:       'DM Sans', system-ui, sans-serif;
  --font-mono:       'DM Mono', monospace;

  /* Spacing */
  --section-gap:     7rem;
  --content-max:     1200px;
  --content-wide:    1400px;

  /* Transitions */
  --ease:            cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out:        cubic-bezier(0.0, 0.0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--black);
  color: var(--ivory);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--ivory);
}

h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); font-weight: 300; }
h2 { font-size: clamp(1.9rem, 3.5vw, 3rem); font-weight: 300; }
h3 { font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 400; }
h4 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 400; }
h5 { font-size: 1rem; font-weight: 500; font-family: var(--font-body); letter-spacing: 0.08em; text-transform: uppercase; color: var(--gold); }

p { font-size: 1rem; line-height: 1.75; color: var(--ivory-dim); font-weight: 300; }

.lead { font-size: 1.2rem; line-height: 1.7; color: var(--ivory); font-weight: 300; }
.caption { font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ivory-faint); font-family: var(--font-mono); }
.eyebrow { font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold); font-family: var(--font-mono); font-weight: 400; }

/* ── Layout Utilities ──────────────────────────────────────── */
.container { max-width: var(--content-max); margin: 0 auto; padding: 0 2rem; }
.container-wide { max-width: var(--content-wide); margin: 0 auto; padding: 0 2rem; }

.section { padding: var(--section-gap) 0; }
.section-sm { padding: 4rem 0; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

.text-center { text-align: center; }
.text-gold { color: var(--gold); }
.text-ivory { color: var(--ivory); }
.text-dim { color: var(--ivory-dim); }
.text-faint { color: var(--ivory-faint); }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-6 { margin-top: 3rem; }
.mt-8 { margin-top: 4rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 3rem; }

/* ── Dividers ──────────────────────────────────────────────── */
.divider {
  width: 4rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 2rem 0;
}
.divider-center { margin: 2rem auto; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2rem;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gold);
  color: var(--black);
  border: 1px solid var(--gold);
}
.btn-primary:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(201, 168, 76, 0.25);
}

.btn-outline {
  background: transparent;
  color: var(--ivory);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-1px);
}

.btn-amazon {
  background: linear-gradient(135deg, #ff9900, #e67e00);
  color: #111;
  border: none;
  font-weight: 600;
}
.btn-amazon:hover {
  background: linear-gradient(135deg, #ffad33, #ff9900);
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(255, 153, 0, 0.3);
}

.btn-sm { padding: 0.6rem 1.4rem; font-size: 0.76rem; }

.btn-group { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-group-center { justify-content: center; }

/* ── Navigation ────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.2rem 0;
  transition: all 0.4s var(--ease);
}

.nav.scrolled {
  background: rgba(10, 9, 7, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border-soft);
}

.nav__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--ivory);
  white-space: nowrap;
}
.nav__logo span { color: var(--gold); }
.nav__logo .tm { font-size: 0.65rem; vertical-align: super; color: var(--gold-muted); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  font-size: 0.76rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ivory-dim);
  padding: 0.5rem 0.8rem;
  transition: color 0.2s;
  position: relative;
}
.nav__link:hover { color: var(--ivory); }
.nav__link.active { color: var(--gold); }

.nav__cta {
  background: var(--gold);
  color: var(--black);
  padding: 0.55rem 1.2rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: all 0.25s;
}
.nav__cta:hover { background: var(--gold-light); }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ivory);
  transition: all 0.3s;
}

/* Mobile menu */
.nav__mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--charcoal);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}
.nav__mobile.open { display: flex; }
.nav__mobile .nav__link { font-size: 1.1rem; padding: 0.75rem 1rem; }

/* ── Hero Section ──────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 5rem;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(201,168,76,0.04) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 20% 70%, rgba(196,92,40,0.06) 0%, transparent 60%),
    linear-gradient(180deg, var(--charcoal) 0%, var(--black) 100%);
}

/* Grain overlay for texture */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}
.hero__eyebrow::before {
  content: '';
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--gold);
}

.hero h1 {
  font-size: clamp(2.6rem, 5.5vw, 4.8rem);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.hero__tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--gold);
  margin-bottom: 2.5rem;
  letter-spacing: 0.02em;
}

/* hero__visual removed — product cards shown in dedicated section below */

/* ── Product Visual Placeholders ───────────────────────────── */
.product-visual {
  aspect-ratio: 3/4;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 1.5rem;
  transition: all 0.4s var(--ease);
}

.product-visual:hover {
  border-color: var(--gold-muted);
  transform: translateY(-4px);
}

.product-visual__bg {
  position: absolute;
  inset: 0;
  background: var(--charcoal-mid);
}

.product-visual__label {
  position: relative;
  z-index: 2;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ivory);
  text-align: center;
}

.product-visual--stride .product-visual__bg {
  background: linear-gradient(165deg, #0d1f1c 0%, #1a3530 40%, #0a1210 100%);
}
.product-visual--stride::before {
  content: '';
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74,124,111,0.3) 0%, transparent 70%);
  box-shadow: 0 0 40px rgba(74,124,111,0.2);
}

.product-visual--lift .product-visual__bg {
  background: linear-gradient(165deg, #1f0f08 0%, #3d2010 40%, #120900 100%);
}
.product-visual--lift::before {
  content: '';
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196,92,40,0.3) 0%, transparent 70%);
  box-shadow: 0 0 40px rgba(196,92,40,0.2);
}

.product-visual--sleep .product-visual__bg {
  background: linear-gradient(165deg, #150c1a 0%, #2a1535 40%, #0d0810 100%);
}
.product-visual--sleep::before {
  content: '';
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(92,61,94,0.3) 0%, transparent 70%);
  box-shadow: 0 0 40px rgba(92,61,94,0.2);
}

/* Product icon in placeholder */
.product-visual__icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -60%);
  z-index: 2;
  opacity: 0.6;
}

/* ── Trust Strip ───────────────────────────────────────────── */
.trust-strip {
  padding: 1.75rem 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  background: var(--charcoal);
  overflow: hidden;
}

.trust-strip__inner {
  display: flex;
  gap: 3rem;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.trust-strip__item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ivory-faint);
  white-space: nowrap;
  transition: color 0.2s;
}
.trust-strip__item:hover { color: var(--ivory-dim); }

.trust-strip__item::before {
  content: '';
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
}

/* ── Section Headers ───────────────────────────────────────── */
.section-header { margin-bottom: 3.5rem; }
.section-header-center { text-align: center; }
.section-header-center .divider { margin: 1.5rem auto 0; }

/* ── Product Cards ─────────────────────────────────────────── */
.product-card {
  border: 1px solid var(--border);
  background: var(--glass);
  position: relative;
  overflow: hidden;
  transition: all 0.45s var(--ease);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  border-color: var(--gold-muted);
  background: var(--glass-hover);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.product-card__visual {
  aspect-ratio: 4/5;
  position: relative;
  overflow: hidden;
}

.product-card__body {
  padding: 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card__category {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-muted);
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
}

.product-card__name {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  margin-bottom: 0.85rem;
  color: var(--ivory);
}

.product-card__benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.benefit-pill {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--border);
  color: var(--ivory-dim);
  font-family: var(--font-mono);
}

.product-card--stride .benefit-pill { border-color: rgba(74,124,111,0.3); color: rgba(74,200,170,0.8); }
.product-card--lift .benefit-pill   { border-color: rgba(196,92,40,0.3); color: rgba(230,140,80,0.8); }
.product-card--sleep .benefit-pill  { border-color: rgba(92,61,94,0.3); color: rgba(160,110,180,0.8); }

.product-card__desc {
  font-size: 0.92rem;
  color: var(--ivory-faint);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  flex: 1;
}

.product-card__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-soft);
}

.trust-badge {
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ivory-faint);
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.trust-badge::before {
  content: '✓';
  color: var(--gold);
  font-size: 0.65rem;
}

/* ── Brand Philosophy Section ──────────────────────────────── */
.philosophy {
  background: linear-gradient(180deg, var(--black) 0%, var(--charcoal) 50%, var(--black) 100%);
  position: relative;
  overflow: hidden;
}

.philosophy::before {
  content: 'NEPI';
  position: absolute;
  right: -2rem;
  top: 50%;
  transform: translateY(-50%) rotate(-90deg);
  font-family: var(--font-display);
  font-size: 18rem;
  font-weight: 300;
  color: rgba(201,168,76,0.03);
  pointer-events: none;
  letter-spacing: 0.2em;
  white-space: nowrap;
}

.philosophy__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.philosophy__pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
}

.pillar-card {
  padding: 1.5rem;
  border: 1px solid var(--border-soft);
  background: var(--glass);
  transition: all 0.3s var(--ease);
}
.pillar-card:hover {
  border-color: var(--border);
  background: var(--glass-hover);
}

.pillar-card__letter {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.pillar-card__title {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ivory-dim);
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
}

.pillar-card__desc {
  font-size: 0.85rem;
  color: var(--ivory-faint);
  line-height: 1.6;
}

/* ── Science Preview ───────────────────────────────────────── */
.science-preview {
  position: relative;
}

.science-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.science-card {
  padding: 2rem;
  border: 1px solid var(--border-soft);
  position: relative;
  overflow: hidden;
  transition: all 0.3s var(--ease);
}

.science-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease);
}
.science-card:hover::before { transform: scaleX(1); }
.science-card:hover { border-color: var(--border); }

.science-card__number {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--gold-muted);
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.science-card__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--ivory);
  margin-bottom: 0.75rem;
}

.science-card__body {
  font-size: 0.88rem;
  color: var(--ivory-faint);
  line-height: 1.7;
}

/* ── Answer Engine Block ───────────────────────────────────── */
.answer-block {
  background: var(--charcoal);
  border: 1px solid var(--border-soft);
  padding: var(--section-gap) 0;
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.answer-item {
  padding: 2rem;
  border: 1px solid var(--border-soft);
  background: var(--glass);
  transition: all 0.3s var(--ease);
}
.answer-item:hover { border-color: var(--border); background: var(--glass-hover); }

.answer-item__q {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--gold);
  margin-bottom: 0.75rem;
  font-style: italic;
}

.answer-item__a {
  font-size: 0.92rem;
  color: var(--ivory-dim);
  line-height: 1.7;
}

/* ── Founder Preview ───────────────────────────────────────── */
.founder-preview {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: center;
}

.founder-preview__photo {
  aspect-ratio: 3/4;
  border: 1px solid var(--border);
  background: var(--charcoal-mid);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
}

.founder-preview__photo::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10,9,7,0.8) 100%);
}

.founder-preview__photo-placeholder {
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, var(--charcoal-light) 0%, var(--brown-warm) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.founder-credential {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ivory-faint);
  font-family: var(--font-mono);
  margin: 0.25rem;
}

/* ── COA / Lab Section ─────────────────────────────────────── */
.lab-preview {
  background: linear-gradient(135deg, var(--charcoal) 0%, var(--charcoal-mid) 100%);
  border: 1px solid var(--border-soft);
  padding: 4rem;
  position: relative;
  overflow: hidden;
}

.lab-preview::before {
  content: 'COA';
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: 8rem;
  font-weight: 300;
  color: rgba(201,168,76,0.05);
  pointer-events: none;
  letter-spacing: 0.3em;
}

.lab-tests {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.lab-test-tag {
  padding: 0.45rem 1rem;
  border: 1px solid var(--border);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ivory-faint);
  font-family: var(--font-mono);
  transition: all 0.2s;
}
.lab-test-tag:hover { border-color: var(--gold-muted); color: var(--ivory-dim); }

/* ── Contact Section ───────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border-soft);
  transition: all 0.25s;
  color: var(--ivory-dim);
}
.contact-link:hover { color: var(--ivory); border-color: var(--border); }

.contact-link__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  flex-shrink: 0;
  font-size: 1rem;
  transition: border-color 0.25s;
}
.contact-link:hover .contact-link__icon { border-color: var(--gold-muted); }

.contact-link__label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ivory-faint);
  font-family: var(--font-mono);
}

.contact-link__value {
  font-size: 0.95rem;
  color: var(--ivory);
}

/* Form */
.form-group { margin-bottom: 1.25rem; }
.form-label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ivory-faint);
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
}
.form-input, .form-textarea {
  width: 100%;
  background: var(--glass);
  border: 1px solid var(--border-soft);
  color: var(--ivory);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.85rem 1rem;
  transition: border-color 0.25s;
  outline: none;
  -webkit-appearance: none;
}
.form-input:focus, .form-textarea:focus { border-color: var(--gold-muted); }
.form-textarea { min-height: 140px; resize: vertical; }
.form-input::placeholder, .form-textarea::placeholder { color: var(--ivory-faint); }

/* ── Final CTA ─────────────────────────────────────────────── */
.final-cta {
  text-align: center;
  padding: 8rem 0;
  background: linear-gradient(180deg, var(--black) 0%, var(--charcoal-mid) 50%, var(--black) 100%);
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,168,76,0.04) 0%, transparent 70%);
  pointer-events: none;
}

/* ── Footer ────────────────────────────────────────────────── */
.footer {
  background: var(--charcoal);
  border-top: 1px solid var(--border-soft);
  padding: 4rem 0 2rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer__brand-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--ivory);
  margin-bottom: 0.75rem;
}

.footer__tagline {
  font-style: italic;
  font-size: 0.88rem;
  color: var(--gold);
  font-family: var(--font-display);
  margin-bottom: 1rem;
}

.footer__desc {
  font-size: 0.85rem;
  color: var(--ivory-faint);
  line-height: 1.7;
  max-width: 280px;
}

.footer__col-title {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ivory-faint);
  font-family: var(--font-mono);
  margin-bottom: 1.25rem;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer__link {
  font-size: 0.85rem;
  color: var(--ivory-faint);
  transition: color 0.2s;
}
.footer__link:hover { color: var(--ivory-dim); }

.footer__bottom {
  border-top: 1px solid var(--border-soft);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__legal {
  font-size: 0.75rem;
  color: var(--ivory-faint);
  line-height: 1.6;
}

.footer__compliance {
  font-size: 0.72rem;
  color: var(--ivory-faint);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

.footer__social {
  display: flex;
  gap: 0.75rem;
}

.footer__social-link {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--ivory-faint);
  transition: all 0.2s;
}
.footer__social-link:hover { border-color: var(--gold-muted); color: var(--gold); }

/* ── Page Hero (inner pages) ───────────────────────────────── */
.page-hero {
  padding: 10rem 0 5rem;
  background: linear-gradient(180deg, var(--charcoal) 0%, var(--black) 100%);
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-muted), transparent);
}

/* ── Breadcrumb ────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  font-size: 0.72rem;
  color: var(--ivory-faint);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
}

.breadcrumb__sep { color: var(--gold-muted); font-size: 0.65rem; }
.breadcrumb__link { transition: color 0.2s; }
.breadcrumb__link:hover { color: var(--ivory-dim); }
.breadcrumb__current { color: var(--gold-muted); }

/* ── Ingredient Grid ───────────────────────────────────────── */
.ingredient-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.ingredient-card {
  padding: 1.5rem;
  border: 1px solid var(--border-soft);
  background: var(--glass);
  transition: all 0.3s var(--ease);
  position: relative;
}
.ingredient-card:hover { border-color: var(--border); background: var(--glass-hover); }

.ingredient-card__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ivory);
  margin-bottom: 0.25rem;
}

.ingredient-card__dose {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.ingredient-card__function {
  font-size: 0.85rem;
  color: var(--ivory-dim);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.ingredient-card__mechanism {
  font-size: 0.8rem;
  color: var(--ivory-faint);
  line-height: 1.55;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-soft);
  font-style: italic;
}

/* ── Benefit Cards ─────────────────────────────────────────── */
.benefit-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
}

.benefit-card {
  padding: 2rem;
  border: 1px solid var(--border-soft);
  position: relative;
  overflow: hidden;
  transition: all 0.3s var(--ease);
}
.benefit-card:hover { border-color: var(--border); background: var(--glass); }

.benefit-card__icon {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  display: block;
}

.benefit-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--ivory);
  margin-bottom: 0.5rem;
}

.benefit-card__desc {
  font-size: 0.85rem;
  color: var(--ivory-dim);
  line-height: 1.65;
}

/* ── FAQ ───────────────────────────────────────────────────── */
.faq-list { margin-top: 2rem; }

.faq-item {
  border-bottom: 1px solid var(--border-soft);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.5rem 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ivory);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition: color 0.2s;
}
.faq-question:hover { color: var(--gold); }

.faq-question__icon {
  width: 20px;
  height: 20px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.7rem;
  color: var(--gold);
  transition: transform 0.3s;
}

.faq-item.open .faq-question__icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}

.faq-item.open .faq-answer { max-height: 500px; }

.faq-answer__inner {
  padding: 0 0 1.5rem;
  font-size: 0.92rem;
  color: var(--ivory-dim);
  line-height: 1.75;
}

/* ── Amazon Buy Box ────────────────────────────────────────── */
.amazon-box {
  border: 1px solid var(--border);
  padding: 2.5rem;
  background: var(--glass);
  position: sticky;
  top: 6rem;
}

.amazon-box__tag {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ivory-faint);
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
}

.amazon-box__name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--ivory);
  margin-bottom: 0.5rem;
}

.amazon-box__avail {
  font-size: 0.82rem;
  color: var(--ivory-faint);
  margin-bottom: 1.5rem;
}

.amazon-box__facts {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.amazon-box__fact {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--ivory-faint);
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-soft);
}
.amazon-box__fact strong { color: var(--ivory-dim); }

/* ── Lab Reports Page ──────────────────────────────────────── */
.coa-placeholder {
  border: 1px dashed var(--border);
  padding: 3rem;
  text-align: center;
  background: var(--glass);
  font-size: 0.88rem;
  color: var(--ivory-faint);
}

/* ── About / Science Long-form ─────────────────────────────── */
.long-form h2 { margin-bottom: 1rem; }
.long-form h3 { margin-bottom: 0.75rem; color: var(--gold); font-size: 1.2rem; font-family: var(--font-body); font-weight: 500; }
.long-form p  { margin-bottom: 1.25rem; }
.long-form ul { margin-bottom: 1.25rem; padding-left: 1rem; }
.long-form ul li { font-size: 0.92rem; color: var(--ivory-dim); line-height: 1.7; margin-bottom: 0.4rem; position: relative; padding-left: 1.25rem; }
.long-form ul li::before { content: '—'; position: absolute; left: 0; color: var(--gold-muted); }

/* ── Founder Page ──────────────────────────────────────────── */
.founder-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 5rem;
  align-items: start;
}

.founder-photo {
  position: sticky;
  top: 6rem;
}

.founder-photo__frame {
  aspect-ratio: 3/4;
  border: 1px solid var(--border);
  background: linear-gradient(165deg, var(--charcoal-light) 0%, var(--brown-warm) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
}

.founder-photo__frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 30%, rgba(201,168,76,0.06) 0%, transparent 60%);
}

.founder-photo__placeholder {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--ivory-faint);
  opacity: 0.3;
}

.credential-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.credential-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.82rem;
  color: var(--ivory-faint);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}
.credential-item::before { content: '◆'; color: var(--gold); font-size: 0.45rem; flex-shrink: 0; }

/* ── Policy Pages ──────────────────────────────────────────── */
.policy-content h2 { font-size: 1.4rem; margin-top: 3rem; margin-bottom: 1rem; color: var(--gold); font-family: var(--font-body); font-weight: 500; letter-spacing: 0.02em; }
.policy-content h3 { font-size: 1.1rem; margin-top: 2rem; margin-bottom: 0.75rem; color: var(--ivory-dim); font-family: var(--font-body); font-weight: 400; }
.policy-content p  { margin-bottom: 1rem; font-size: 0.9rem; }
.policy-content ul { padding-left: 1.25rem; margin-bottom: 1rem; }
.policy-content ul li { font-size: 0.88rem; color: var(--ivory-dim); margin-bottom: 0.35rem; }

/* ── Scroll animations ─────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.stagger > * { transition-delay: calc(var(--i, 0) * 80ms); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  :root { --section-gap: 5rem; }
  .grid-2, .grid-3, .grid-4, .philosophy__grid, .founder-layout { grid-template-columns: 1fr; }
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .science-cards { grid-template-columns: 1fr; }
  .answer-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .founder-preview { grid-template-columns: 1fr; }
  .philosophy__pillars { grid-template-columns: 1fr 1fr; }
  .lab-preview { padding: 2.5rem; }
}

@media (max-width: 640px) {
  :root { --section-gap: 4rem; }
  .container, .container-wide { padding: 0 1.25rem; }
  .footer__grid { grid-template-columns: 1fr; }
  .trust-strip__inner { gap: 1.5rem; justify-content: flex-start; overflow-x: auto; padding: 0 1.25rem; flex-wrap: nowrap; }
  .hero { padding-top: 6rem; }
  .page-hero { padding: 8rem 0 4rem; }
  .btn-group { flex-direction: column; align-items: flex-start; }
  .philosophy__pillars { grid-template-columns: 1fr; }
  .amazon-box { position: static; }
  .product-hero-layout { grid-template-columns: 1fr; }
}

/* ── Print ──────────────────────────────────────────────────── */
@media print {
  .nav, .footer, .trust-strip { display: none; }
  body { background: white; color: black; }
}

/* ═══════════════════════════════════════════════════════════════
   EXTENDED STYLES — new pages (sleep, science, founder, lab, faq, contact, amazon)
   ═══════════════════════════════════════════════════════════════ */

/* ── Product hero grid ──────────────────────────────────────── */
.product-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.product-hero-content { max-width: 560px; }
.product-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 600;
  line-height: 1.08;
  color: var(--ivory);
  margin: 0.5rem 0 0.75rem;
}
.product-hero-sub {
  font-size: 1.05rem;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.product-hero-desc {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 1.5rem;
}
.product-hero-benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.benefit-tag {
  padding: 0.3rem 0.9rem;
  border: 1px solid var(--tag-color, var(--gold));
  border-radius: 2rem;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--tag-color, var(--gold));
  letter-spacing: 0.04em;
}
.hero-cta-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.product-tagline-italic {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--text-muted);
  font-size: 1.05rem;
}
.product-hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ── Benefit grid ───────────────────────────────────────────── */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.benefit-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
}
.benefit-card__icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}
.benefit-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--ivory);
  margin-bottom: 0.6rem;
}
.benefit-card__desc {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 0.75rem;
}
.benefit-card__mech {
  color: var(--ivory-dim);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  line-height: 1.5;
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
}

/* ── Ingredient grid ────────────────────────────────────────── */
.ingredient-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}
.ingredient-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
}
.ingredient-card__name {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ivory);
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.ingredient-card__dose {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}
.ingredient-card__function {
  font-size: 0.83rem;
  color: var(--ivory-dim);
  font-weight: 500;
  margin-bottom: 0.6rem;
}
.ingredient-card__mechanism {
  font-size: 0.79rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Science grid ───────────────────────────────────────────── */
.science-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2.5rem;
}
.science-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem;
}
.science-block h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--ivory);
  margin-bottom: 1rem;
}
.science-block p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 0.75rem;
}

/* ── Fit grid ───────────────────────────────────────────────── */
.fit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.fit-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
}
.fit-card h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ivory);
  margin-bottom: 0.6rem;
}
.fit-card p {
  font-size: 0.87rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── Amazon buy box ─────────────────────────────────────────── */
.amazon-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.amazon-box__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bg);
  padding: 0.3rem 0.9rem;
  border-radius: 2rem;
  margin-bottom: 1.25rem;
}
.amazon-box__name {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--ivory);
  margin-bottom: 0.5rem;
}
.amazon-box__avail {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--gold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.amazon-box__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2rem;
}
.amazon-box__fact {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 2rem;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--ivory-dim);
  padding: 0.3rem 0.9rem;
}
.amazon-box__note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 1rem;
}
.amazon-box__disclaimer {
  font-size: 0.73rem;
  color: var(--ivory-dim);
  margin-top: 0.5rem;
  font-style: italic;
}

/* ── Trust compliance grid ──────────────────────────────────── */
.trust-compliance-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.trust-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
}
.trust-item h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ivory);
  margin-bottom: 0.6rem;
}
.trust-item p {
  font-size: 0.87rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.warning-block {
  background: rgba(180, 100, 60, 0.08);
  border: 1px solid rgba(196, 92, 40, 0.25);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  margin-top: 2rem;
}
.warning-block h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--lift);
  margin-bottom: 0.6rem;
}
.warning-block p {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ── Product cross nav ──────────────────────────────────────── */
.product-cross-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.product-cross-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--card-accent, var(--gold));
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s;
}
.product-cross-card:hover { transform: translateY(-3px); }
.product-cross-card--active { opacity: 0.5; cursor: default; pointer-events: none; }
.product-cross-card__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--card-accent, var(--gold));
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.product-cross-card__name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--ivory);
}
.product-cross-card__desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── Science page: NEPI cards ───────────────────────────────── */
.nepi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.nepi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--nepi-color);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
}
.nepi-card__letter {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--nepi-color);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.nepi-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--ivory);
  margin-bottom: 1rem;
}
.nepi-card__desc {
  font-size: 0.87rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}
.nepi-card__examples {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.nepi-card__examples span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--nepi-color);
  padding: 0.2rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

/* ── ECS section ────────────────────────────────────────────── */
.ecs-content { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-top: 2.5rem; }
.ecs-intro p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.85; margin-bottom: 1rem; }
.ecs-mechanics h3 { font-family: var(--font-display); font-size: 1.2rem; color: var(--ivory); margin-bottom: 1.5rem; }
.ecs-mechanics-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.ecs-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
}
.ecs-item h4 { font-size: 0.88rem; color: var(--ivory); margin-bottom: 0.5rem; }
.ecs-item p { font-size: 0.81rem; color: var(--text-muted); line-height: 1.65; }

/* ── Synergy section ────────────────────────────────────────── */
.synergy-explanation { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 2.5rem; }
.synergy-principle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
}
.synergy-principle h3 { font-family: var(--font-display); font-size: 1.1rem; color: var(--ivory); margin-bottom: 0.75rem; }
.synergy-principle p { font-size: 0.87rem; color: var(--text-muted); line-height: 1.75; }

/* ── Product mapping ────────────────────────────────────────── */
.product-mapping-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2.5rem; }
.product-mapping-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-top: 3px solid var(--card-color);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
}
.product-mapping-card h3 { font-family: var(--font-display); font-size: 1.25rem; color: var(--ivory); margin-bottom: 0.25rem; }
.product-mapping-card h3 a { color: inherit; text-decoration: none; }
.product-mapping-card h3 a:hover { color: var(--gold); }
.mapping-tagline { font-size: 0.78rem; color: var(--gold); font-family: var(--font-mono); margin-bottom: 1.25rem; }
.mapping-nepi { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 1rem; }
.mapping-nepi-row { display: flex; gap: 0.75rem; align-items: flex-start; font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }
.mapping-n { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; flex-shrink: 0; line-height: 1.3; }
.mapping-ecs { display: block; font-family: var(--font-mono); font-size: 0.72rem; color: var(--ivory-dim); border-top: 1px solid var(--border); padding-top: 0.75rem; }

/* ── Science closing ─────────────────────────────────────────── */
.science-closing {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.science-closing h2 { font-family: var(--font-display); font-size: 2rem; color: var(--ivory); margin-bottom: 1.25rem; }
.science-closing p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.85; margin-bottom: 0.75rem; }

/* ── Founder chapters ───────────────────────────────────────── */
.founder-story { display: flex; flex-direction: column; gap: 4rem; }
.founder-chapter {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 2.5rem;
  align-items: flex-start;
}
.founder-chapter__num {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--border);
  line-height: 1;
  padding-top: 0.35rem;
}
.founder-chapter__content h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--ivory);
  margin-bottom: 1rem;
}
.founder-chapter__content p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.85;
  margin-bottom: 0.75rem;
}

/* ── AEO single ─────────────────────────────────────────────── */
.aeo-single {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  max-width: 900px;
  margin: 0 auto;
}
.aeo-single__q {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--ivory);
  margin-bottom: 1rem;
}
.aeo-single__a {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.85;
}

/* ── Credentials grid ───────────────────────────────────────── */
.credentials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.credential-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  text-align: center;
}
.credential-card__icon { font-size: 2rem; margin-bottom: 0.75rem; }
.credential-card h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ivory);
  margin-bottom: 0.5rem;
}
.credential-card p { font-size: 0.84rem; color: var(--text-muted); line-height: 1.65; }

/* ── Founder CTA block ─────────────────────────────────────── */
.founder-cta-block {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.founder-cta-block h2 { font-family: var(--font-display); font-size: 2rem; color: var(--ivory); margin-bottom: 1rem; }
.founder-cta-block p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.8; }

/* ── Testing why grid ───────────────────────────────────────── */
.testing-why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.testing-why-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
}
.testing-why-card h4 { font-family: var(--font-display); font-size: 1rem; color: var(--ivory); margin-bottom: 0.5rem; }
.testing-why-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; }

/* ── NABL block ─────────────────────────────────────────────── */
.nabl-block {
  max-width: 860px;
  margin: 0 auto;
}
.nabl-block h2 { font-family: var(--font-display); font-size: 1.75rem; color: var(--ivory); margin-bottom: 1.25rem; }
.nabl-block p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.85; margin-bottom: 0.75rem; }
.nabl-standards { margin-top: 2rem; }
.nabl-standards h3 { font-family: var(--font-display); color: var(--ivory); font-size: 1rem; margin-bottom: 1rem; }
.nabl-standards-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.nabl-standards-grid span {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
  padding: 0.35rem 1rem;
}

/* ── COA access ─────────────────────────────────────────────── */
.coa-access-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.coa-product-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
}
.coa-product-header {
  border-bottom: 2px solid;
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
}
.coa-product-header h3 { font-family: var(--font-display); font-size: 1.15rem; color: var(--ivory); margin-bottom: 0.25rem; }
.coa-batch-label { display: block; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.4rem; }
.coa-select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--ivory);
  padding: 0.6rem 0.75rem;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-body);
}
.coa-btn { width: 100%; }
.coa-note { font-size: 0.78rem; color: var(--text-muted); line-height: 1.6; margin-top: 0.75rem; font-style: italic; }
.coa-message {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  line-height: 1.65;
}
.coa-message--info { background: rgba(201, 168, 76, 0.08); border: 1px solid rgba(201, 168, 76, 0.25); color: var(--ivory-dim); }
.coa-message--warn { background: rgba(196, 92, 40, 0.08); border: 1px solid rgba(196, 92, 40, 0.3); color: var(--lift); }
.coa-message a { color: var(--gold); }

/* ── Disclaimer block ───────────────────────────────────────── */
.disclaimer-block { max-width: 860px; margin: 0 auto; }
.disclaimer-block h2 { font-family: var(--font-display); font-size: 1.75rem; color: var(--ivory); margin-bottom: 2rem; }
.disclaimer-points { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-bottom: 2.5rem; }
.disclaimer-point {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}
.disclaimer-point h4 { font-family: var(--font-display); font-size: 0.95rem; color: var(--ivory); margin-bottom: 0.5rem; }
.disclaimer-point p { font-size: 0.84rem; color: var(--text-muted); line-height: 1.7; }
.compliance-note {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}
.compliance-note p { font-size: 0.8rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 0.5rem; }

/* ── FAQ sections ───────────────────────────────────────────── */
.faq-sections { display: flex; flex-direction: column; gap: 3.5rem; }
.faq-section__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.faq-list { display: flex; flex-direction: column; gap: 0; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 1.25rem 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ivory);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.faq-question::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--gold);
  flex-shrink: 0;
  transition: transform 0.25s;
}
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-answer {
  display: none;
  padding: 0 0 1.25rem;
}
.faq-item.open .faq-answer { display: block; }
.faq-answer p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 0.6rem;
}
.faq-answer a { color: var(--gold); }
.faq-answer ul {
  padding-left: 1.25rem;
  margin: 0.5rem 0 0.75rem;
}
.faq-answer ul li {
  font-size: 0.87rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 0.25rem;
}

/* ── Contact page ───────────────────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: flex-start;
}
.contact-channels h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--ivory);
  margin-bottom: 2rem;
}
.contact-channel {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}
.contact-channel__icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-channel__content h4 { font-size: 0.9rem; color: var(--ivory); margin-bottom: 0.25rem; }
.contact-channel__content p { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 0.35rem; line-height: 1.5; }
.contact-channel__link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--gold);
  text-decoration: none;
}
.contact-channel__link:hover { text-decoration: underline; }
.contact-address {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.contact-address h4 { font-size: 0.85rem; color: var(--ivory); margin-bottom: 0.5rem; }
.contact-address address { font-style: normal; font-size: 0.8rem; color: var(--text-muted); line-height: 1.75; }
.contact-form-wrap h2 { font-family: var(--font-display); font-size: 1.5rem; color: var(--ivory); margin-bottom: 0.5rem; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-label { font-size: 0.8rem; color: var(--ivory-dim); font-family: var(--font-mono); }
.form-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--ivory);
  padding: 0.75rem 1rem;
  font-size: 0.88rem;
  font-family: var(--font-body);
  transition: border-color 0.2s;
  width: 100%;
  box-sizing: border-box;
}
.form-input:focus { outline: none; border-color: var(--gold); }
.form-textarea { resize: vertical; min-height: 120px; }
.btn--full { width: 100%; justify-content: center; }
.form-feedback {
  font-size: 0.85rem;
  line-height: 1.6;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
}
.form-feedback--success { background: rgba(74, 124, 111, 0.12); border: 1px solid rgba(74, 124, 111, 0.3); color: var(--stride); }
.form-feedback--error { background: rgba(196, 92, 40, 0.1); border: 1px solid rgba(196, 92, 40, 0.3); color: var(--lift); }
.contact-faq h2 { font-family: var(--font-display); font-size: 1.5rem; color: var(--ivory); margin-bottom: 1.5rem; }
.contact-faq-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.contact-faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}
.contact-faq-item h4 { font-size: 0.88rem; color: var(--ivory); margin-bottom: 0.4rem; }
.contact-faq-item p { font-size: 0.81rem; color: var(--text-muted); line-height: 1.65; }
.contact-faq-item a { color: var(--gold); }

/* ── Amazon destination page ────────────────────────────────── */
.amazon-page-header { text-align: center; max-width: 640px; margin: 0 auto 1rem; }
.amazon-page-header h1 { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3rem); color: var(--ivory); margin: 0.5rem 0; }
.amazon-page-header p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.8; margin-top: 0.75rem; }
.amazon-products { display: flex; flex-direction: column; gap: 2rem; }
.amazon-product-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--card-accent);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: center;
}
.amazon-product-card__visual {
  min-height: 160px;
  border-radius: var(--radius-sm);
}
.amazon-product-card__info h2 { font-family: var(--font-display); font-size: 1.6rem; color: var(--ivory); margin-bottom: 0.25rem; }
.amazon-product-card__cat { font-family: var(--font-mono); font-size: 0.72rem; color: var(--gold); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.75rem; }
.amazon-product-card__desc { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 1rem; }
.amazon-product-card__facts { padding: 0 0 0 1.25rem; margin: 0 0 1.25rem; }
.amazon-product-card__facts li { font-size: 0.82rem; color: var(--ivory-dim); line-height: 1.75; }
.amazon-trust { max-width: 900px; margin: 0 auto; }
.amazon-trust h2 { font-family: var(--font-display); font-size: 1.75rem; color: var(--ivory); margin-bottom: 2rem; }
.amazon-trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; margin-bottom: 2rem; }
.amazon-trust-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 1.5rem 1.25rem; }
.amazon-trust-item h4 { font-size: 0.9rem; color: var(--ivory); margin-bottom: 0.4rem; }
.amazon-trust-item p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.65; }
.amazon-disclaimer { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 1.25rem 1.5rem; }
.amazon-disclaimer p { font-size: 0.78rem; color: var(--text-muted); line-height: 1.7; font-style: italic; }

/* ── Legal pages ────────────────────────────────────────────── */
.container--narrow { max-width: 800px; }
.legal-content h1 { font-family: var(--font-display); font-size: 2.25rem; color: var(--ivory); margin-bottom: 0.5rem; }
.legal-date { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted); margin-bottom: 2.5rem; }
.legal-content h2 { font-family: var(--font-display); font-size: 1.2rem; color: var(--ivory); margin: 2rem 0 0.75rem; }
.legal-content h3 { font-family: var(--font-body); font-size: 0.95rem; color: var(--ivory-dim); font-weight: 600; margin: 1.25rem 0 0.5rem; }
.legal-content p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.85; margin-bottom: 0.75rem; }
.legal-content ul { padding-left: 1.5rem; margin: 0.5rem 0 1rem; }
.legal-content ul li { font-size: 0.88rem; color: var(--text-muted); line-height: 1.75; margin-bottom: 0.3rem; }
.legal-content address { font-style: normal; font-size: 0.88rem; color: var(--text-muted); line-height: 1.85; }
.legal-content a { color: var(--gold); }

/* ── AEO grid ────────────────────────────────────────────────── */
.aeo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 0;
}
.aeo-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
}
.aeo-card__q { font-family: var(--font-display); font-size: 1.05rem; color: var(--ivory); margin-bottom: 0.75rem; }
.aeo-card__a { font-size: 0.88rem; color: var(--text-muted); line-height: 1.8; }

/* ── Extended responsive ─────────────────────────────────────── */
@media (max-width: 1100px) {
  .ingredient-grid { grid-template-columns: repeat(3, 1fr); }
  .nepi-grid { grid-template-columns: repeat(2, 1fr); }
  .product-mapping-grid { grid-template-columns: 1fr; }
  .synergy-explanation { grid-template-columns: 1fr; }
  .amazon-trust-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .product-hero-grid { grid-template-columns: 1fr; }
  .product-hero-visual { display: none; }
  .benefit-grid { grid-template-columns: 1fr 1fr; }
  .ingredient-grid { grid-template-columns: repeat(2, 1fr); }
  .science-grid { grid-template-columns: 1fr; }
  .fit-grid { grid-template-columns: 1fr 1fr; }
  .product-cross-nav { grid-template-columns: 1fr; }
  .ecs-content { grid-template-columns: 1fr; }
  .ecs-mechanics-grid { grid-template-columns: 1fr; }
  .credentials-grid { grid-template-columns: 1fr 1fr; }
  .founder-chapter { grid-template-columns: 3rem 1fr; gap: 1.5rem; }
  .trust-compliance-grid { grid-template-columns: 1fr; }
  .coa-access-grid { grid-template-columns: 1fr; }
  .disclaimer-points { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-faq-grid { grid-template-columns: repeat(2, 1fr); }
  .amazon-product-card { grid-template-columns: 1fr; }
  .amazon-product-card__visual { max-width: 200px; }
  .testing-why-grid { grid-template-columns: 1fr 1fr; }
  .aeo-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .benefit-grid { grid-template-columns: 1fr; }
  .ingredient-grid { grid-template-columns: 1fr; }
  .fit-grid { grid-template-columns: 1fr; }
  .nepi-grid { grid-template-columns: 1fr; }
  .credentials-grid { grid-template-columns: 1fr; }
  .founder-chapter { grid-template-columns: 1fr; }
  .founder-chapter__num { font-size: 2rem; }
  .contact-faq-grid { grid-template-columns: 1fr; }
  .amazon-trust-grid { grid-template-columns: 1fr; }
  .testing-why-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}