:root {
  --bg: #050814;
  --bg-alt: #090d20;
  --card: #0f1429;
  --accent: #f59e0b;
  --accent-soft: rgba(245, 158, 11, 0.1);
  --accent-strong: #f97316;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --border-subtle: rgba(148, 163, 184, 0.3);
  --danger: #f97373;
  --green: #4ade80;
  --container-width: 1120px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-pill: 999px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.6);
  --shadow-card: 0 18px 40px rgba(15, 23, 42, 0.85);
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #1f2937, #020617 52%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 42, 0.92),
    rgba(15, 23, 42, 0.6),
    transparent
  );
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: conic-gradient(
    from 220deg,
    #f97316,
    #facc15,
    #22c55e,
    #0ea5e9,
    #f97316
  );
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  color: #020617;
  box-shadow: 0 12px 30px rgba(249, 115, 22, 0.5);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text .brand {
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
  text-transform: uppercase;
}

.logo-text .sub-brand {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.9rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.4rem 0.1rem;
  transition: color 0.15s ease, transform 0.15s ease;
}

.nav a:hover {
  color: var(--text-main);
  transform: translateY(-1px);
}

.nav-cta {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #f97316, #facc15);
  color: #020617;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(249, 115, 22, 0.6);
}

.hero {
  padding: 4.5rem 0 3.5rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2.4rem, 3.2vw + 1rem, 3rem);
  line-height: 1.05;
  margin: 0 0 1rem;
}

.hero-tagline {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 32rem;
  margin-bottom: 1.5rem;
}

.hero-bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 1.75rem;
}

.hero-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.hero-bullets li::before {
  content: "";
  margin-top: 0.4rem;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #facc15, #f97316);
  box-shadow: 0 0 12px rgba(250, 204, 21, 0.8);
  flex-shrink: 0;
}

.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  border: 0;
  cursor: pointer;
  background: linear-gradient(135deg, #f97316, #facc15);
  color: #020617;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  box-shadow: 0 18px 45px rgba(249, 115, 22, 0.7);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 55px rgba(249, 115, 22, 0.85);
}

.small-note {
  margin-top: 0.7rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.hero-card {
  background: radial-gradient(circle at top, #1f2937, #020617 60%);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.6rem 1.5rem;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(
    circle at 0% 0%,
    rgba(250, 204, 21, 0.25),
    transparent 55%
  );
  opacity: 0.7;
  pointer-events: none;
}

.bottle-visual {
  position: relative;
  width: 120px;
  margin: 0 auto 1.3rem;
}

.bottle-cap {
  display: block;
  width: 48px;
  height: 18px;
  margin: 0 auto;
  border-radius: 8px 8px 4px 4px;
  background: linear-gradient(135deg, #111827, #020617);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.9);
}

.bottle-body {
  display: block;
  margin: 0.3rem auto 0;
  width: 80px;
  height: 170px;
  border-radius: 24px;
  background: linear-gradient(180deg, #fef3c7, #f97316 55%, #b91c1c 95%);
  box-shadow: 0 22px 40px rgba(15, 23, 42, 0.9);
  position: relative;
  overflow: hidden;
}

.bottle-label {
  position: absolute;
  inset: 18% 12%;
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(15, 23, 42, 0.96), #020617);
  border: 1px solid rgba(148, 163, 184, 0.5);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  text-align: center;
  padding: 0.7rem 0.5rem;
}

.label-brand {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.label-name {
  font-size: 0.8rem;
  font-weight: 600;
}

.label-size {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.hero-highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  margin-top: 1.6rem;
}

.hero-highlights > div {
  background: radial-gradient(circle at top, #111827, #020617 65%);
  border-radius: var(--radius-md);
  padding: 0.7rem 0.7rem 0.6rem;
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.highlight-number {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.highlight-text {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.section {
  padding: 3.25rem 0;
}

.section-alt {
  background: radial-gradient(circle at top, #0b1220, #020617 60%);
}

.section h2 {
  font-size: 1.6rem;
  margin: 0 0 0.75rem;
}

.section-intro {
  max-width: 40rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.8rem;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.3rem;
}

.benefit-card {
  background: radial-gradient(circle at top left, #111827, #020617 70%);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.1rem 1.05rem;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: var(--shadow-soft);
}

.benefit-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.benefit-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.science-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem;
}

.science-item {
  background: radial-gradient(circle at top, #020617, #020617 65%);
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.4);
  padding: 1rem 1rem 0.8rem;
}

.science-item h3 {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
}

.science-item ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.science-item li + li {
  margin-top: 0.2rem;
}

.disclaimer {
  margin-top: 1.2rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-left: 2px solid rgba(148, 163, 184, 0.6);
  padding-left: 0.75rem;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 1.8rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.two-column ul {
  padding-left: 1.1rem;
}

.faq-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.faq-item {
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.35);
  padding: 1rem 1rem 0.85rem;
  background: radial-gradient(circle at top, #020617, #020617 70%);
}

.faq-item h3 {
  margin: 0 0 0.4rem;
  font-size: 0.98rem;
}

.faq-item p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.cta-section {
  border-top: 1px solid rgba(148, 163, 184, 0.25);
}

.cta-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

.email-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.email-form input[type="email"] {
  flex: 1 1 220px;
  min-width: 0;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.95);
  color: var(--text-main);
  font-size: 0.9rem;
}

.email-form input::placeholder {
  color: rgba(148, 163, 184, 0.8);
}

.form-message {
  width: 100%;
  font-size: 0.8rem;
  color: var(--green);
  margin: 0.2rem 0 0;
}

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  padding: 1.6rem 0 2rem;
  margin-top: 1.5rem;
  background: radial-gradient(circle at bottom, #020617, #020617 65%);
}

.footer-inner {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-disclaimer {
  max-width: 38rem;
  margin: 0.4rem auto 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-card {
    order: -1;
  }

  .nav {
    display: none;
  }

  .benefit-grid,
  .science-grid,
  .faq-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .two-column {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 3.2rem;
  }
}

@media (max-width: 600px) {
  .hero-highlights {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-card {
    padding: 1.4rem 1.2rem;
  }

  .section {
    padding: 2.5rem 0;
  }
}