:root {
  --bg: #0b0b0d;
  --bg-soft: #121216;
  --bg-card: #17171c;
  --line: #26262e;
  --text: #f4f4f2;
  --muted: #a2a2ac;
  --yellow: #f5e003;
  --yellow-dark: #d4c000;
  --red: #e03131;
  --pink: #f26bb8;
  --blue: #35c4f0;
  --green: #3fd97f;
  --orange: #ff7a45;
  --display: "Arial Black", "Arial Bold", Impact, "Helvetica Neue", sans-serif;
  --body: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

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

img { max-width: 100%; display: block; }

a { color: inherit; }

.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
.wrap-wide { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ---------- display type ---------- */
.display {
  font-family: var(--display);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  line-height: 1.05;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 18px;
}

.kicker {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--display);
  text-transform: uppercase;
  font-size: 15px;
  letter-spacing: 0.04em;
  background: var(--yellow);
  color: #111;
  padding: 16px 30px;
  border-radius: 6px;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  box-shadow: 0 6px 24px rgba(245, 224, 3, 0.22);
}
.btn:hover { background: #fff45c; transform: translateY(-2px); box-shadow: 0 10px 30px rgba(245, 224, 3, 0.3); }
.btn--lg { font-size: 18px; padding: 20px 38px; }
.btn-note { font-size: 13px; color: var(--muted); margin-top: 12px; }

/* ---------- topbar ---------- */
.topbar {
  background: var(--yellow);
  color: #111;
  text-align: center;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 16px;
}
.topbar strong { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 11, 13, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap-wide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.site-header img { height: 34px; width: auto; border-radius: 3px; }
.header-cta { font-size: 13px; padding: 11px 20px; box-shadow: none; }

/* ---------- hero ---------- */
.hero { padding: 84px 0 64px; text-align: center; }
.hero h1 { font-size: clamp(42px, 7.5vw, 84px); }
.hero h1 em { font-style: normal; color: var(--yellow); }
.hero p.lede {
  max-width: 640px;
  margin: 26px auto 0;
  font-size: 19px;
  color: #d6d6dc;
}
.hero .bloodflow {
  font-family: var(--display);
  text-transform: uppercase;
  font-size: clamp(22px, 4vw, 34px);
  color: var(--red);
  letter-spacing: 0.02em;
  margin-top: 14px;
}
.hero-img {
  margin: 52px auto 0;
  max-width: 640px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.hero .btn { margin-top: 40px; }

/* ---------- study chips ---------- */
.study-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 44px 0 0;
  list-style: none;
}
.study-chips li {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 8px 16px;
}

/* ---------- sections ---------- */
.section { padding: 84px 0; }
.section--soft { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section h2 { font-size: clamp(30px, 4.6vw, 52px); margin-bottom: 26px; }
.section h2 .hl { color: var(--yellow); }
.section h3 { font-size: clamp(20px, 3vw, 26px); margin: 40px 0 14px; }
.section p + p { margin-top: 18px; }
.section .copy p { color: #cfcfd6; }
.section .copy strong { color: var(--text); }

/* ---------- stat card ---------- */
.stat-card {
  background: linear-gradient(160deg, #1b1b22, #101014);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 48px 32px;
  text-align: center;
  margin: 48px 0;
}
.stat-card .num {
  font-family: var(--display);
  font-size: clamp(72px, 14vw, 140px);
  color: var(--red);
  line-height: 1;
}
.stat-card .label {
  font-family: var(--display);
  text-transform: uppercase;
  font-size: clamp(17px, 2.6vw, 24px);
  margin-top: 14px;
}
.stat-card .sub { color: var(--muted); font-size: 14px; margin-top: 14px; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 700; }

/* ---------- dose ladder ---------- */
.dose-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 44px 0 10px;
}
.dose {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px 14px;
  text-align: center;
  position: relative;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.dose:hover { transform: translateY(-4px); border-color: var(--yellow); }
.dose .mg { font-family: var(--display); font-size: clamp(28px, 4.5vw, 44px); }
.dose .mg small { font-size: 0.45em; }
.dose .tag { display: block; font-size: 12px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-top: 10px; }
.dose--start { border-color: var(--yellow); }
.dose--start::after {
  content: "START HERE";
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--yellow);
  color: #111;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.12em;
  padding: 3px 10px;
  border-radius: 100px;
  white-space: nowrap;
}

/* ---------- flavor grid ---------- */
.flavor-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-top: 44px;
}
.flavor {
  grid-column: span 2;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 12px 20px;
  text-align: center;
}
.flavor:nth-child(4) { grid-column: 2 / 4; }
.flavor:nth-child(5) { grid-column: 4 / 6; }
.flavor img {
  height: 170px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  border-radius: 10px;
  margin: 0 auto 14px;
}
.flavor .name { font-family: var(--display); text-transform: uppercase; font-size: 14px; letter-spacing: 0.02em; }
.flavor .swatch { width: 26px; height: 5px; border-radius: 3px; margin: 10px auto 0; }

/* ---------- banner ---------- */
.giveaway-banner {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  margin: 40px 0;
  background: var(--bg-card);
}
.giveaway-banner img { height: 500px; width: auto; max-width: 100%; margin: 0 auto; }

/* ---------- spec grid ---------- */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 40px;
}
.spec {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 20px;
}
.spec b { display: block; font-family: var(--display); text-transform: uppercase; font-size: 15px; margin-bottom: 6px; color: var(--yellow); }
.spec span { font-size: 14px; color: var(--muted); }

/* ---------- compare table ---------- */
.compare {
  width: 100%;
  border-collapse: collapse;
  margin-top: 40px;
  font-size: 15px;
}
.compare th, .compare td {
  padding: 16px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.compare thead th {
  font-family: var(--display);
  text-transform: uppercase;
  font-size: 14px;
  letter-spacing: 0.05em;
}
.compare thead th:last-child, .compare td:last-child { color: var(--yellow); }
.compare tbody th { font-weight: 600; color: #d6d6dc; }
.compare .yes { color: var(--green); font-weight: 800; }
.compare .no { color: #6a6a74; }
.compare td:last-child { font-weight: 700; }

/* ---------- quote ---------- */
.quote {
  border-left: 4px solid var(--yellow);
  padding: 8px 0 8px 24px;
  margin: 48px 0 0;
  font-size: clamp(19px, 2.8vw, 24px);
  line-height: 1.5;
  font-weight: 600;
}
.quote cite { display: block; font-style: normal; font-size: 14px; color: var(--muted); margin-top: 16px; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700; }

/* ---------- offer card ---------- */
.offer {
  background: linear-gradient(165deg, #1d1d14, #121216 60%);
  border: 1px solid rgba(245, 224, 3, 0.4);
  border-radius: 20px;
  padding: clamp(28px, 5vw, 56px);
  text-align: center;
}
.offer .price-was { text-decoration: line-through; color: var(--muted); font-size: 18px; }
.offer .price {
  font-family: var(--display);
  font-size: clamp(56px, 10vw, 96px);
  color: var(--yellow);
  line-height: 1;
  margin: 6px 0 4px;
}
.offer ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 30px 0 34px;
}
.offer ul li {
  background: rgba(245, 224, 3, 0.08);
  border: 1px solid rgba(245, 224, 3, 0.25);
  color: #efe9a8;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 9px 16px;
  border-radius: 100px;
}
.offer .limited { font-size: 14px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--red); margin-top: 16px; }

/* ---------- reviews ---------- */
.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 44px; }
.review {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px 22px;
}
.review .stars { color: var(--yellow); letter-spacing: 3px; font-size: 15px; }
.review blockquote { margin: 14px 0 18px; font-size: 15px; color: #d6d6dc; }
.review .who { font-size: 13px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq { margin-top: 40px; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button {
  width: 100%;
  background: none;
  border: 0;
  color: var(--text);
  font-family: var(--body);
  font-size: 17px;
  font-weight: 700;
  text-align: left;
  padding: 22px 4px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.faq-item button::after {
  content: "+";
  font-family: var(--display);
  font-size: 22px;
  color: var(--yellow);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.faq-item.open button::after { transform: rotate(45deg); }
.faq-item .answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item .answer p { padding: 0 4px 24px; color: #cfcfd6; }

/* ---------- references ---------- */
.refs { font-size: 13px; color: var(--muted); margin-top: 36px; }
.refs li { margin: 10px 0 0 18px; }
.refs a { color: var(--muted); }

/* ---------- final cta ---------- */
.final { text-align: center; padding: 100px 0; background: radial-gradient(120% 90% at 50% 0%, #1c1c10 0%, var(--bg) 60%); }
.final h2 { font-size: clamp(34px, 6vw, 64px); }
.final p { color: var(--muted); margin: 18px auto 36px; max-width: 560px; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 44px 0 120px; text-align: center; }
.site-footer img { height: 30px; margin: 0 auto 18px; border-radius: 3px; }
.site-footer nav { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; margin-bottom: 18px; }
.site-footer nav a { color: var(--muted); font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; text-decoration: none; }
.site-footer nav a:hover { color: var(--yellow); }
.site-footer small { color: #5b5b64; font-size: 12px; }

/* ---------- sticky cta ---------- */
.sticky-cta {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 60;
  background: rgba(13, 13, 16, 0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  transform: translateY(110%);
  transition: transform 0.3s ease;
}
.sticky-cta.show { transform: translateY(0); }
.sticky-cta .txt { font-size: 13px; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.sticky-cta .txt b { color: var(--yellow); }
.sticky-cta .btn { padding: 12px 22px; font-size: 13px; box-shadow: none; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .dose-grid { grid-template-columns: repeat(2, 1fr); }
  .flavor-grid { grid-template-columns: repeat(2, 1fr); }
  .flavor, .flavor:nth-child(4), .flavor:nth-child(5) { grid-column: auto; }
  .flavor img { height: 150px; }
  .giveaway-banner img { height: 380px; }
  .spec-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews { grid-template-columns: 1fr; }
  .compare thead th:nth-child(2) { display: none; }
  .compare td:nth-child(2) { display: none; }
}
@media (max-width: 560px) {
  .spec-grid { grid-template-columns: 1fr; }
  .flavor-grid { grid-template-columns: 1fr; }
  .flavor img { height: 170px; }
  .giveaway-banner img { height: 300px; }
  .sticky-cta .txt { display: none; }
  .hero { padding: 56px 0 44px; }
  .section { padding: 60px 0; }
}