:root {
  --bg: #0b0f14;
  --bg-alt: #111821;
  --light: #ffffff;
  --light-alt: #f7f8fa;
  --ink: #0b0f14;
  --muted: #5b6776;
  --line: #e5e8ee;
  --accent: #16d17c;       /* gut health green */
  --accent-dark: #0fa863;
  --accent-2: #ffb020;     /* warning / urgency */
  --danger: #e23b3b;
  --grad-1: #16d17c;
  --grad-2: #4ade80;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 6px 24px rgba(0,0,0,.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.18);
  --maxw: 1180px;
  --maxw-narrow: 760px;
  --font: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Manrope', var(--font);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--light);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.container.narrow { max-width: var(--maxw-narrow); }

/* ANNOUNCE */
.announce {
  background: linear-gradient(90deg, #062a18, #0a3d24);
  color: #eafff3;
  padding: 9px 16px;
  text-align: center;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: .01em;
}
.announce .badge-pill {
  display: inline-block;
  background: var(--accent);
  color: #042416;
  font-weight: 800;
  padding: 2px 10px;
  border-radius: 999px;
  margin-right: 10px;
  font-size: 11.5px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* HERO */
.hero {
  background:
    radial-gradient(1100px 500px at 80% -10%, rgba(22,209,124,.18), transparent 60%),
    linear-gradient(180deg, #0b0f14 0%, #0d141c 100%);
  color: #fff;
  padding: 30px 22px 64px;
  position: relative;
  overflow: hidden;
}
.hero-inner { max-width: var(--maxw); margin: 0 auto; text-align: center; }
.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -.02em;
  text-transform: uppercase;
  color: #fff;
}
.brand span { color: var(--accent); }
.brand.light { color: #fff; }

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.04;
  letter-spacing: -.02em;
  margin: 22px auto 14px;
  max-width: 14ch;
}
.grad { background: linear-gradient(120deg, var(--grad-1), var(--grad-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.underline { text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 4px; text-underline-offset: 6px; }
.hero-sub {
  font-size: clamp(16px, 2.2vw, 20px);
  color: #c9d3dd;
  max-width: 60ch;
  margin: 0 auto 26px;
}
.hero-sub strong { color: #fff; }

.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 18px; }
.hero-trust { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; color: #aab6c2; font-size: 13.5px; font-weight: 500; }
.hero-trust span { white-space: nowrap; }

/* BUTTONS */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  letter-spacing: .01em;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-dark));
  color: #042416;
  box-shadow: 0 8px 24px rgba(22,209,124,.32);
}
.btn-primary:hover { box-shadow: 0 12px 32px rgba(22,209,124,.45); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.22); }
.btn-ghost:hover { border-color: rgba(255,255,255,.5); }
.btn-lg { font-size: 16px; padding: 16px 28px; }
.btn-xl { font-size: 18px; padding: 20px 38px; }
.btn-pulse {
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 8px 24px rgba(22,209,124,.32); }
  50%      { box-shadow: 0 8px 24px rgba(22,209,124,.32), 0 0 0 14px rgba(22,209,124,.0); }
}

/* HERO BEFORE/AFTER */
.hero-ba {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 14px;
  align-items: center;
  max-width: 760px;
  margin: 38px auto 12px;
}
.ba-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); background: #111; aspect-ratio: 1206/2622; }
.ba-card img { width: 100%; height: 100%; object-fit: cover; }
.ba-tag {
  position: absolute; left: 10px; bottom: 10px;
  font-family: var(--font-display);
  font-weight: 800; font-size: 12px;
  padding: 6px 10px; border-radius: 999px;
  letter-spacing: .04em;
}
.tag-before { background: rgba(0,0,0,.7); color: #ffd9d9; }
.tag-after  { background: var(--accent); color: #042416; }
.ba-arrow {
  font-size: 32px; font-weight: 800;
  color: var(--accent);
  text-align: center;
}
.hero-note { color: #8794a2; font-size: 12.5px; margin: 10px auto 0; max-width: 60ch; }

/* STATS STRIP */
.stats {
  background: #fff;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0; border-bottom: 1px solid var(--line);
  text-align: center;
}
.stat { padding: 26px 14px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: none; }
.stat-n {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5vw, 44px);
  color: var(--accent-dark);
  line-height: 1;
}
.stat-l { font-size: 13px; color: var(--muted); margin-top: 6px; }

/* SECTIONS */
.section { padding: 80px 0; }
.section.dark { background: var(--bg); color: #e6ecf2; }
.section-head { text-align: center; max-width: 64ch; margin: 0 auto 36px; }
.section-head.light { color: #fff; }
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.5vw, 40px);
  letter-spacing: -.02em;
  margin: 10px 0 12px;
  line-height: 1.1;
}
.section.dark h2 { color: #fff; }
.section-head p { color: var(--muted); font-size: 16.5px; }
.section.dark .section-head p { color: #97a3b0; }
.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-dark);
  padding: 5px 12px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: rgba(22,209,124,.08);
}
.section.dark .eyebrow { background: rgba(22,209,124,.12); }

/* RESULTS */
.stats-bar {
  display: flex; gap: 14px; align-items: center; justify-content: center;
  background: var(--light-alt);
  border: 1px solid var(--line);
  padding: 16px 22px;
  border-radius: var(--radius);
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.stats-bar > div { display: flex; flex-direction: column; align-items: flex-start; min-width: 76px; }
.stats-bar span { font-size: 11.5px; text-transform: uppercase; color: var(--muted); letter-spacing: .08em; }
.stats-bar strong { font-family: var(--font-display); font-size: 20px; }
.stats-bar .arrow { font-size: 22px; color: var(--accent-dark); font-weight: 800; }
.stats-foot { text-align: center; color: var(--muted); font-size: 13px; max-width: 70ch; margin: 0 auto 30px; }

.pairs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.pair {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  cursor: zoom-in;
  transition: transform .15s ease, box-shadow .15s ease;
}
.pair:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.pair-label {
  position: absolute; top: 8px; z-index: 2;
  font-family: var(--font-display); font-weight: 800; font-size: 11px;
  letter-spacing: .04em;
  padding: 5px 9px; border-radius: 999px;
}
.pair-label.l { left: 8px; background: rgba(0,0,0,.7); color: #ffd9d9; }
.pair-label.r { right: 8px; background: var(--accent); color: #042416; }
.pair-imgs { display: grid; grid-template-columns: 1fr 1fr; }
.pair-imgs img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 1206/2622; background: #eef1f5; }
.pair-title {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,.78));
  color: #fff; font-size: 12px; padding: 22px 12px 10px; text-align: center;
  font-weight: 600;
}
@media (max-width: 860px) { .pairs-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .pairs-grid { grid-template-columns: 1fr; } }

/* WARNING */
.warning-section { background: #fff7ec; }
.warning-box {
  background: #fff;
  border: 3px solid var(--danger);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: 0 24px 60px rgba(226,59,59,.16);
  text-align: center;
  position: relative;
}
.warning-box::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: var(--radius-lg);
  background: repeating-linear-gradient(45deg, transparent, transparent 14px, rgba(226,59,59,.05) 14px, rgba(226,59,59,.05) 28px);
  pointer-events: none;
}
.warning-icon {
  font-size: 56px;
  color: var(--danger);
  line-height: 1;
}
.warning-box h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 800;
  color: var(--danger);
  margin: 14px 0 10px;
  letter-spacing: -.01em;
  line-height: 1.15;
}
.warning-sub { font-size: 16px; color: #4a3535; max-width: 60ch; margin: 0 auto 22px; }
.warning-sub strong { color: var(--danger); }
.warning-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; text-align: left; margin: 26px 0 18px; }
.warning-card {
  background: #fff8ef;
  border: 1px solid #ffd9a0;
  border-radius: var(--radius);
  padding: 20px;
}
.warning-card h3 { font-family: var(--font-display); margin: 0 0 10px; font-size: 17px; }
.warning-list { margin: 0; padding-left: 18px; }
.warning-list li { margin-bottom: 8px; font-size: 14.5px; }
.video-placeholder {
  background: #111;
  color: #fff;
  aspect-ratio: 16/9;
  border-radius: 12px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 6px;
}
.video-placeholder div { font-size: 40px; color: var(--accent); }
.video-placeholder small { color: #8794a2; font-size: 11px; }
.warning-foot { font-family: var(--font-display); font-weight: 800; font-size: 18px; color: var(--danger); }
.warning-foot em { font-style: normal; }
@media (max-width: 720px) { .warning-grid { grid-template-columns: 1fr; } }

/* ORDER */
.order-section { background: linear-gradient(180deg, #f7fdfa, #fff); }
.order-card {
  max-width: 720px; margin: 0 auto; text-align: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 44px 32px; box-shadow: var(--shadow-lg);
}
.order-card h2 { font-family: var(--font-display); font-size: clamp(26px, 4vw, 36px); font-weight: 800; margin: 14px 0 10px; }
.order-sub { color: var(--muted); font-size: 17px; max-width: 48ch; margin: 0 auto 22px; }
.order-features {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 14px;
  text-align: left; max-width: 460px; margin: 0 auto 26px;
  font-size: 14.5px; font-weight: 600;
}
.order-features div { padding-left: 4px; }
.order-fine { color: var(--muted); font-size: 12.5px; margin-top: 14px; }
.order-fine code { background: #eef1f5; padding: 1px 6px; border-radius: 5px; font-size: 11.5px; }

/* PILLARS */
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.pillar {
  background: var(--bg-alt);
  border: 1px solid #1c2632;
  border-radius: var(--radius-lg);
  padding: 28px;
}
.pillar-num {
  font-family: var(--font-display); font-weight: 800; font-size: 14px;
  color: var(--accent); letter-spacing: .12em;
}
.pillar h3 { font-family: var(--font-display); font-size: 22px; margin: 8px 0 10px; color: #fff; }
.pillar p { color: #9aa6b3; font-size: 15.5px; }
.why-callout {
  margin-top: 28px; text-align: center; max-width: 64ch; margin-left: auto; margin-right: auto;
}
.why-callout h3 { font-family: var(--font-display); font-size: 22px; color: #fff; }
.why-callout p { color: #97a3b3; }
.why-callout em { color: var(--accent); font-style: normal; font-weight: 700; }
@media (max-width: 720px) { .pillars { grid-template-columns: 1fr; } }

/* WORKOUT */
.workout-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.workout-card {
  background: var(--light-alt); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 24px;
}
.workout-icon { font-size: 32px; line-height: 1; }
.workout-card h3 { font-family: var(--font-display); font-size: 17px; margin: 12px 0 8px; }
.workout-card p { color: var(--muted); font-size: 14.5px; margin: 0; }
@media (max-width: 980px) { .workout-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .workout-grid { grid-template-columns: 1fr; } }

/* STUDIES */
.studies { display: flex; flex-direction: column; gap: 22px; }
.study {
  background: var(--bg-alt);
  border: 1px solid #1c2632;
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: left;
}
.study-u {
  font-family: var(--font-display);
  font-size: 12px; letter-spacing: .14em;
  color: var(--accent); font-weight: 800; text-transform: uppercase;
}
.study h3 { font-family: var(--font-display); font-size: 24px; color: #fff; margin: 6px 0 12px; }
.study-quote { color: #cdd6df; font-style: italic; font-size: 15.5px; }
.study-author { color: #97a3b0; font-size: 13.5px; margin-top: 8px; }
.study-body { margin-top: 18px; border-top: 1px solid #1c2632; padding-top: 16px; }
.study-body h4 { color: #fff; font-family: var(--font-display); font-size: 14px; text-transform: uppercase; letter-spacing: .06em; margin: 0 0 10px; }
.study-body ul { padding-left: 20px; color: #b6c1cd; }
.study-body li { margin-bottom: 8px; }
.study-body strong { color: #fff; }
.study-cite {
  margin-top: 14px;
  font-size: 13.5px;
  color: #97a3b0;
  background: rgba(22,209,124,.06);
  padding: 10px 14px; border-radius: 10px;
  border: 1px solid rgba(22,209,124,.18);
}
.study-cite a { color: var(--accent); }
.refs { margin-top: 14px; }
.refs summary { cursor: pointer; color: var(--accent); font-weight: 700; font-size: 13.5px; }
.refs ol { color: #97a3b0; font-size: 13px; padding-left: 20px; line-height: 1.7; margin-top: 10px; }
.refs a { color: var(--accent); }
.science-foot { text-align: center; color: #97a3b0; margin-top: 30px; }

/* POSTURE CARD */
.posture-card {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 22px;
  background: var(--light-alt); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px;
}
.posture-text h3 { font-family: var(--font-display); font-size: 22px; margin: 0 0 12px; }
.posture-text p { color: var(--muted); }
.posture-aside { display: flex; flex-direction: column; gap: 14px; justify-content: center; }
.posture-quote {
  font-family: var(--font-display); font-weight: 800; font-size: 18px; line-height: 1.3;
  color: var(--accent-dark);
  padding: 18px; background: #fff; border-radius: var(--radius);
  border-left: 4px solid var(--accent);
}
.posture-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.posture-tags span {
  background: #fff; border: 1px solid var(--line); padding: 5px 10px; border-radius: 999px;
  font-size: 12.5px; font-weight: 600;
}
@media (max-width: 720px) { .posture-card { grid-template-columns: 1fr; } }

/* COACHING */
.coaching-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; max-width: 760px; margin: 0 auto; }
.step {
  background: var(--bg-alt); border: 1px solid #1c2632; border-radius: var(--radius-lg); padding: 24px; text-align: left;
}
.step-n {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--accent); color: #042416;
  font-family: var(--font-display); font-weight: 800; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 12px;
}
.step h3 { color: #fff; font-family: var(--font-display); margin: 0 0 6px; }
.step p { color: #9aa6b3; margin: 0; font-size: 14.5px; }
.coaching-promise {
  max-width: 640px; margin: 30px auto 0; text-align: center;
}
.coaching-promise h3 { color: #fff; font-family: var(--font-display); }
.coaching-promise ul {
  list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px;
  color: #cdd6df; max-width: 480px; margin: 12px auto 0;
}
.coaching-promise li::before { content: "✓ "; color: var(--accent); font-weight: 800; }
.coaching-contact { text-align: center; color: #fff; font-family: var(--font-display); font-size: 22px; margin-top: 28px; }
.coaching-contact a { color: var(--accent); }
.coaching-affil { display: block; color: #8794a2; font-size: 13px; margin-top: 6px; font-family: var(--font); }
@media (max-width: 720px) { .coaching-steps { grid-template-columns: 1fr; } .coaching-promise ul { grid-template-columns: 1fr; } }

/* FAQ */
.faq {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 22px; margin-bottom: 10px;
}
.faq summary {
  cursor: pointer; font-family: var(--font-display); font-weight: 700; font-size: 16.5px;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "+ "; color: var(--accent-dark); font-weight: 800; margin-right: 4px; }
.faq[open] summary::before { content: "− "; }
.faq p { margin: 10px 0 0; color: var(--muted); }

/* LEAD FORM */
.signup-section { background: linear-gradient(180deg, #0b0f14, #0d1620); }
.lead-form {
  background: #fff; border-radius: var(--radius-lg); padding: 28px;
  display: grid; gap: 14px; box-shadow: var(--shadow-lg);
  text-align: left;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.lead-form label {
  display: flex; flex-direction: column; font-weight: 600; font-size: 13.5px; color: #2c3640;
  letter-spacing: .01em;
}
.lead-form label.full { grid-column: 1 / -1; }
.lead-form input, .lead-form select, .lead-form textarea {
  margin-top: 6px; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--line);
  font-family: var(--font); font-size: 15px; background: #fbfcfd;
  width: 100%; resize: vertical;
}
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(22,209,124,.16);
}
.lead-form button { width: 100%; margin-top: 6px; }
.form-status { font-size: 14px; text-align: center; margin: 0; min-height: 18px; }
.form-status.ok { color: var(--accent-dark); font-weight: 700; }
.form-status.err { color: var(--danger); font-weight: 700; }
.form-foot { text-align: center; color: var(--muted); font-size: 12px; margin: 0; }
.hp { position: absolute; left: -9999px; top: -9999px; }
@media (max-width: 540px) { .form-row { grid-template-columns: 1fr; } }

/* FOOTER */
.footer { background: #06090d; color: #97a3b0; padding: 50px 0 30px; }
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 30px;
  margin-bottom: 30px;
}
.footer-grid h4 { color: #fff; font-family: var(--font-display); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; margin: 0 0 10px; }
.footer-grid a { display: block; color: #97a3b0; padding: 3px 0; font-size: 14px; }
.footer-grid a:hover { color: var(--accent); text-decoration: none; }
.footer-email { display: block; color: #97a3b0; padding: 3px 0; font-size: 14px; }
.footer-tag { color: #6b7785; font-size: 13.5px; margin-top: 8px; }
.footer-disclaim { font-size: 12px; color: #5b6776; border-top: 1px solid #1a2230; padding-top: 20px; max-width: 90ch; }
.footer-copy { font-size: 12px; color: #5b6776; margin-top: 12px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* LIGHTBOX */
.lightbox {
  position: fixed; inset: 0; background: rgba(0,0,0,.92);
  display: none; align-items: center; justify-content: center; z-index: 9999; padding: 20px;
}
.lightbox.open { display: flex; }
.lb-content { max-width: 95vw; max-height: 95vh; }
.lb-content img { max-width: 95vw; max-height: 90vh; border-radius: 12px; box-shadow: 0 20px 60px rgba(0,0,0,.6); }
.lb-content .lb-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; background: #fff; padding: 8px; border-radius: 12px; }
.lb-content .lb-pair img { width: 100%; height: auto; }
.lb-close {
  position: absolute; top: 18px; right: 24px;
  background: rgba(255,255,255,.12); color: #fff; border: none;
  font-size: 30px; width: 44px; height: 44px; border-radius: 50%; cursor: pointer;
}
.lb-close:hover { background: rgba(255,255,255,.25); }

@media (max-width: 720px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--line); }
  .hero-ba { grid-template-columns: 1fr auto 1fr; }
}