/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #04091a;
  --surface: #07112b;
  --surface-2: #0a1a3a;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.12);
  --accent-mid: rgba(0, 212, 255, 0.25);
  --gold: #f59e0b;
  --gold-dim: rgba(245, 158, 11, 0.15);
  --text: #ddeeff;
  --text-muted: #7a9cc0;
  --border: rgba(0, 212, 255, 0.15);
  --radius: 12px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', system-ui, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* === HEADER === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(4, 9, 26, 0.7);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
}
.header-nav {
  display: flex;
  gap: 32px;
}
.header-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}
.header-nav a:hover { color: var(--accent); }

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 32px 80px;
  position: relative;
}
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.12) 0%, transparent 65%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 0%, transparent 80%);
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-mid);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 32px;
}
.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--accent); }
  50% { opacity: 0.6; box-shadow: 0 0 16px var(--accent); }
}
.hero-headline {
  font-family: 'Sora', sans-serif;
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: 32px;
  max-width: 800px;
}
.hero-headline em {
  font-style: normal;
  color: var(--accent);
  background: linear-gradient(135deg, #00d4ff, #0080ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--text-muted);
  max-width: 580px;
  margin-bottom: 40px;
  line-height: 1.7;
}
.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-pills span {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 8px 20px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* === PROOF SECTION === */
.proof { padding: 100px 32px; }
.proof-inner { max-width: 1200px; margin: 0 auto; }
.proof-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.proof-heading {
  font-family: 'Sora', sans-serif;
  font-size: clamp(1.75rem, 3.5vw, 3rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 640px;
}
.proof-body {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 60px;
  line-height: 1.7;
}
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}
.cert-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.3s, transform 0.3s;
}
.cert-card:hover {
  border-color: var(--accent-mid);
  transform: translateY(-4px);
}
.cert-icon { margin-bottom: 16px; }
.cert-title {
  font-family: 'Sora', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}
.cert-desc { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
.athlete-note {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: 8px;
  padding: 20px 24px;
}
.note-text { font-size: 0.9rem; color: var(--text-muted); font-style: italic; }

/* === SCIENCE SECTION === */
.science { padding: 100px 32px; background: var(--surface); }
.science-inner { max-width: 1200px; margin: 0 auto; }
.science-header { margin-bottom: 60px; }
.science-eyebrow {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}
.science-heading {
  font-family: 'Sora', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.3;
  max-width: 600px;
}
.science-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 60px;
}
.science-card {
  background: var(--bg);
  padding: 40px 32px;
  position: relative;
}
.sc-number {
  font-family: 'Sora', sans-serif;
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  opacity: 0.7;
}
.sc-title {
  font-family: 'Sora', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}
.sc-body {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.sc-stat {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: auto;
}
.science-quote {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}
.science-quote blockquote {
  font-family: 'Sora', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  font-style: italic;
  margin-bottom: 16px;
}
.science-quote cite {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: normal;
}

/* === INGREDIENTS SECTION === */
.ingredients { padding: 100px 32px; }
.ingredients-inner { max-width: 1200px; margin: 0 auto; }
.ing-header { text-align: center; margin-bottom: 60px; }
.ing-eyebrow {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.ing-heading {
  font-family: 'Sora', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.3;
}
.ing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  margin-bottom: 60px;
}
.ing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  text-align: center;
}
.ing-card--center {
  border-color: var(--gold-dim);
}
.ing-visual { margin-bottom: 20px; display: flex; justify-content: center; }
.ing-name {
  font-family: 'Sora', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}
.ing-latin {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 16px;
}
.ing-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.ing-facts {
  list-style: none;
  text-align: left;
}
.ing-facts li {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 6px 0;
  border-top: 1px solid var(--border);
}
.ing-facts li::before { content: '— '; color: var(--accent); }
.ing-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat-item {
  background: var(--surface-2);
  padding: 28px 20px;
  text-align: center;
}
.stat-value {
  display: block;
  font-family: 'Sora', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* === CLOSING SECTION === */
.closing {
  padding: 120px 32px;
  text-align: center;
  position: relative;
}
.closing-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.closing-inner { max-width: 800px; margin: 0 auto; position: relative; }
.closing-heading {
  font-family: 'Sora', sans-serif;
  font-size: clamp(1.75rem, 4vw, 3.5rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.closing-body {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.closing-cta { }
.cta-label {
  font-family: 'Sora', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 6px;
}
.cta-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* === FOOTER === */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 60px 32px 40px;
}
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-brand { margin-bottom: 40px; }
.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}
.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}
.footer-col-title {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.footer-col a,
.footer-col span {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 8px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 24px; }
.footer-legal { font-size: 0.75rem; color: var(--text-muted); }

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .science-grid { grid-template-columns: 1fr; }
  .ing-grid { grid-template-columns: 1fr; }
  .ing-stats { grid-template-columns: repeat(2, 1fr); }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .header-nav { display: none; }
}
@media (max-width: 600px) {
  .hero { padding: 100px 20px 60px; }
  .proof, .science, .ingredients, .closing { padding: 60px 20px; }
  .footer-links { grid-template-columns: 1fr; }
  .ing-stats { grid-template-columns: 1fr 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .science-grid { gap: 16px; }
}