:root {
  --color-primary: #13ACBC;
  --color-primary-dark: #154E86;
  --color-primary-light: #2593B3;
  --color-accent: #1B4580;
  --color-light-bg: #C8DBE0;
  --color-ink: #0E2034;
  --color-ink-soft: #355067;
  --color-surface: #F5FAFB;
  --color-surface-strong: #E6F1F4;
  --color-white: #FFFFFF;
  --color-border: rgba(21, 78, 134, 0.14);
  --color-border-strong: rgba(19, 172, 188, 0.28);
  --color-shadow: rgba(8, 32, 58, 0.16);
  --font-body: 'Manrope', sans-serif;
  --font-display: 'Sora', sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.5rem;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-pill: 999px;
  --shadow-sm: 0 12px 24px rgba(8, 32, 58, 0.08);
  --shadow-md: 0 24px 50px rgba(8, 32, 58, 0.12);
  --shadow-lg: 0 32px 70px rgba(8, 32, 58, 0.18);
  --container-max: 1200px;
  --container-padding: 1.25rem;
  --transition-base: 220ms ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--color-ink);
  background:
    radial-gradient(circle at top left, rgba(19, 172, 188, 0.10), transparent 28%),
    linear-gradient(180deg, #f9fdfe 0%, #ffffff 24%, #f6fbfc 100%);
  line-height: 1.6;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

ul {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

p {
  color: var(--color-ink-soft);
}

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

.section {
  padding: var(--space-20) 0;
}

.section-soft {
  background: linear-gradient(180deg, rgba(200, 219, 224, 0.24), rgba(255, 255, 255, 0.95));
}

.section-dark {
  background:
    radial-gradient(circle at 20% 20%, rgba(19, 172, 188, 0.22), transparent 30%),
    linear-gradient(160deg, #0c2136 0%, #123d63 52%, #154E86 100%);
  color: var(--color-white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4,
.final-cta h1,
.final-cta h2,
.final-cta h3,
.final-cta h4 {
  color: var(--color-white);
}

.section-dark p,
.section-dark .section-label,
.section-dark .science-lead,
.section-dark .science-benefit p,
.final-cta p,
.final-cta .section-label {
  color: rgba(255, 255, 255, 0.78);
}

.section-accent {
  background: linear-gradient(135deg, rgba(19, 172, 188, 0.18), rgba(21, 78, 134, 0.10));
}

.section-header {
  max-width: 760px;
  margin: 0 auto var(--space-12);
  text-align: center;
}

.section-header h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--space-4);
}

.section-label,
.mini-label,
.section-label-light,
.eyebrow,
.science-badge,
.offer-badge,
.state-tag,
.audience-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-label,
.mini-label,
.eyebrow,
.science-badge,
.state-tag,
.audience-tag {
  background: rgba(19, 172, 188, 0.12);
  color: var(--color-primary-dark);
}

.section-label-light,
.offer-badge {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
}

.topbar {
  position: relative;
  z-index: 5;
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-accent));
  color: var(--color-white);
  font-size: var(--text-sm);
}

.topbar-inner {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.topbar p,
.topbar-link {
  color: rgba(255, 255, 255, 0.88);
}

.topbar-link {
  font-weight: 700;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-8) 0 var(--space-16);
  background:
    radial-gradient(circle at top right, rgba(19, 172, 188, 0.18), transparent 28%),
    radial-gradient(circle at bottom left, rgba(21, 78, 134, 0.10), transparent 24%),
    linear-gradient(180deg, #f7fcfd 0%, #eef7fa 55%, #ffffff 100%);
  color: var(--color-ink);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(10px);
  pointer-events: none;
}

.hero-orb-a {
  width: 420px;
  height: 420px;
  top: -120px;
  right: -80px;
  background: radial-gradient(circle, rgba(19, 172, 188, 0.20), transparent 70%);
}

.hero-orb-b {
  width: 320px;
  height: 320px;
  bottom: 40px;
  left: -100px;
  background: radial-gradient(circle, rgba(21, 78, 134, 0.12), transparent 70%);
}

.hero-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

.hero-grid,
.problem-layout,
.solution-layout,
.science-layout,
.authority-layout,
.offer-shell {
  display: grid;
  gap: var(--space-10);
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin-bottom: var(--space-5);
  background: rgba(19, 172, 188, 0.16);
  color: #b7f4ff;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #87f3ff;
  box-shadow: 0 0 16px rgba(135, 243, 255, 0.8);
}

.hero-title {
  font-size: clamp(2.35rem, 5.4vw, 4.7rem);
  max-width: 12ch;
  margin-bottom: var(--space-4);
  color: var(--color-ink);
}

.hero-title span {
  display: block;
  color: var(--color-primary-light);
}

.hero-lead {
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  color: var(--color-ink);
  max-width: 58ch;
  margin-bottom: var(--space-4);
}

.hero-subtitle {
  max-width: 60ch;
  margin-bottom: var(--space-6);
  color: var(--color-ink-soft);
}

.hero-benefits {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.hero-benefits li {
  position: relative;
  padding-left: 1.6rem;
  color: var(--color-ink-soft);
}

.hero-benefits li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.56rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, #87f3ff, var(--color-primary));
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.hero-microcopy {
  font-size: var(--text-sm);
  color: rgba(14, 32, 52, 0.62);
}

.hero-card {
  position: relative;
  padding: var(--space-6);
  border-radius: 2rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(235, 245, 249, 0.95));
  border: 1px solid rgba(21, 78, 134, 0.10);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(18px);
}

.hero-card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.science-badge {
  color: var(--color-primary-dark);
  background: rgba(19, 172, 188, 0.10);
}

.hero-product-stage {
  position: relative;
  min-height: 370px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 1.5rem;
  overflow: hidden;
  background:
    radial-gradient(circle at top, rgba(19, 172, 188, 0.14), transparent 38%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(228, 241, 246, 0.98));
  border: 1px solid rgba(21, 78, 134, 0.08);
}

.hero-video {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 370px;
  object-fit: cover;
}

.hero-proof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.proof-card,
.feedback-card,
.problem-item,
.feature-card,
.science-benefit,
.audience-card,
.authority-card,
.offer-card,
.faq-item,
.trust-item {
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.proof-card {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.88);
}

.proof-card strong {
  display: block;
  margin-bottom: 0.25rem;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-ink);
}

.proof-card span {
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}

.trust-strip {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-12);
}

.trust-item {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.94);
}

.trust-item strong {
  display: block;
  margin-top: 0.35rem;
  color: var(--color-ink);
}

.trust-item p {
  margin-top: 0.35rem;
}

.trust-kicker {
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-dark);
}

.before-after-card,
.authority-note,
.science-illustration,
.solution-stage,
.urgency-shell,
.final-shell {
  border-radius: 2rem;
}

.problem-panel,
.solution-visual,
.authority-copy {
  display: flex;
}

.before-after-card {
  width: 100%;
  padding: var(--space-8);
  background: linear-gradient(180deg, rgba(19, 172, 188, 0.10), rgba(255, 255, 255, 0.92));
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.before-after-copy h3,
.authority-note h3 {
  margin: var(--space-3) 0;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.before-after-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.state-card {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
}

.state-before {
  background: rgba(255, 255, 255, 0.74);
}

.state-after {
  background: linear-gradient(135deg, rgba(19, 172, 188, 0.18), rgba(21, 78, 134, 0.10));
}

.problem-list {
  display: grid;
  gap: var(--space-4);
}

.problem-item {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.9);
}

.problem-item h3,
.science-benefit h3,
.audience-card h3,
.authority-card strong,
.offer-card h3 {
  margin-bottom: var(--space-2);
}

.feedback-row {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.feedback-card {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
}

.feedback-card strong {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--color-primary-dark);
}

.section-cta {
  text-align: center;
  margin-top: var(--space-8);
}

.feature-stack {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.feature-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
}

.feature-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.solution-stage {
  position: relative;
  width: 100%;
  min-height: 480px;
  padding: var(--space-10);
  background:
    radial-gradient(circle at top, rgba(19, 172, 188, 0.16), transparent 35%),
    linear-gradient(180deg, rgba(200, 219, 224, 0.38), rgba(255, 255, 255, 0.98));
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.solution-packshot {
  max-height: 360px;
  filter: drop-shadow(0 24px 42px rgba(8, 32, 58, 0.22));
}

.solution-callout {
  position: absolute;
  max-width: 220px;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary-dark);
}

.callout-top {
  top: 10%;
  left: 6%;
}

.callout-bottom {
  right: 6%;
  bottom: 10%;
}

.science-illustration {
  position: relative;
  min-height: 420px;
  background:
    radial-gradient(circle at center, rgba(19, 172, 188, 0.26), transparent 38%),
    rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

.cell,
.signal,
.science-core {
  position: absolute;
  border-radius: 50%;
}

.cell {
  width: 180px;
  height: 180px;
  border: 1px solid rgba(149, 244, 255, 0.45);
  box-shadow: inset 0 0 48px rgba(19, 172, 188, 0.15);
}

.cell-a {
  top: 12%;
  left: 10%;
}

.cell-b {
  right: 12%;
  bottom: 10%;
}

.signal {
  width: 26px;
  height: 26px;
  background: linear-gradient(135deg, #87f3ff, var(--color-primary));
  box-shadow: 0 0 24px rgba(135, 243, 255, 0.45);
}

.signal-a {
  top: 28%;
  left: 44%;
}

.signal-b {
  top: 48%;
  left: 28%;
}

.signal-c {
  bottom: 28%;
  right: 34%;
}

.science-core {
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: 140px;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #dffcff;
  font-family: var(--font-display);
}

.science-content {
  display: grid;
  gap: var(--space-5);
}

.science-lead {
  font-size: var(--text-lg);
}

.science-benefits {
  display: grid;
  gap: var(--space-4);
}

.science-benefit {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
}

.science-benefit h3 {
  color: var(--color-white);
}

.audience-grid,
.authority-grid {
  display: grid;
  gap: var(--space-4);
}

.audience-card,
.authority-card {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.94);
}

.audience-tag {
  margin-bottom: var(--space-4);
}

.authority-note {
  width: 100%;
  padding: var(--space-8);
  background:
    radial-gradient(circle at top right, rgba(19, 172, 188, 0.18), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(230, 241, 244, 0.98));
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.offer-shell {
  align-items: center;
}

.offer-copy h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: var(--space-4) 0;
  color: var(--color-white);
}

.offer-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.offer-point {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.88);
  font-weight: 700;
}

.offer-card {
  padding: var(--space-8);
  border-radius: 2rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(241, 248, 250, 0.96));
}

.offer-card .offer-badge {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
}

.offer-card h3,
.offer-card .price-current {
  color: var(--color-ink);
}

.offer-card .price-old,
.offer-card .price-installments,
.offer-card .offer-security,
.offer-card .offer-checklist li {
  color: var(--color-ink-soft);
}

.price-block {
  margin: var(--space-6) 0;
}

.price-old {
  text-decoration: line-through;
  color: #688198;
}

.price-current {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  color: var(--color-primary-dark);
  line-height: 1;
}

.price-installments {
  margin-top: var(--space-2);
}

.offer-checklist {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.offer-checklist li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--color-ink-soft);
}

.offer-checklist li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-primary);
}

.offer-security {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  text-align: center;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: var(--space-4);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.95);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  text-align: left;
  color: var(--color-ink);
  font-weight: 800;
}

.faq-icon {
  position: relative;
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 2px;
  background: var(--color-primary-dark);
  transform: translate(-50%, -50%);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item.active .faq-icon::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(0deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 260ms ease;
}

.faq-answer-content {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--color-ink-soft);
}

.urgency-shell {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  align-items: flex-start;
  padding: var(--space-8);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.76), rgba(255, 255, 255, 0.96));
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.urgency-shell h2,
.final-shell h2 {
  font-size: clamp(2rem, 5vw, 3.3rem);
  margin: var(--space-4) 0;
}

.final-cta {
  background:
    radial-gradient(circle at top left, rgba(19, 172, 188, 0.25), transparent 26%),
    linear-gradient(160deg, #081a2a 0%, #12324f 46%, #154E86 100%);
}

.final-shell {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-10);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  box-shadow: var(--shadow-lg);
}

.final-shell h2 {
  color: var(--color-white);
}

.footer {
  background: #0a1d30;
  color: rgba(255, 255, 255, 0.76);
  padding: var(--space-10) 0 calc(var(--space-10) + 72px);
}

.footer-inner {
  display: grid;
  justify-items: center;
  gap: var(--space-4);
  text-align: center;
}

.footer-logo {
  width: 150px;
  opacity: 0.74;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-5);
}

.footer-links a,
.footer-disclaimer {
  color: rgba(255, 255, 255, 0.62);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 54px;
  padding: 0.95rem 1.5rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base), color var(--transition-base);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, #32d5e0, var(--color-primary-dark));
  color: var(--color-white);
  box-shadow: 0 18px 36px rgba(19, 172, 188, 0.28);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.section-soft .btn-secondary,
.section-accent .btn-secondary,
main .btn-secondary {
  background: transparent;
  color: var(--color-primary-dark);
  border: 1px solid var(--color-border-strong);
}

.btn-ghost {
  background: rgba(21, 78, 134, 0.06);
  color: var(--color-primary-dark);
  border: 1px solid rgba(21, 78, 134, 0.14);
}

.btn-dark {
  background: linear-gradient(135deg, #0e2741, #154E86);
  color: var(--color-white);
  box-shadow: 0 18px 30px rgba(8, 32, 58, 0.16);
}

.btn-lg {
  min-height: 60px;
  padding-inline: 1.7rem;
}

.btn-block {
  width: 100%;
}

.sticky-button {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--space-3) var(--space-4);
  background: rgba(7, 26, 44, 0.92);
  backdrop-filter: blur(16px);
  z-index: 20;
  transform: translateY(110%);
  transition: transform var(--transition-base);
}

.sticky-button.visible {
  transform: translateY(0);
}

.fade-in,
.fade-in-left,
.fade-in-right {
  opacity: 0;
  transition: opacity 500ms ease, transform 500ms ease;
}

.fade-in {
  transform: translateY(24px);
}

.fade-in-left {
  transform: translateX(-24px);
}

.fade-in-right {
  transform: translateX(24px);
}

.fade-in.visible,
.fade-in-left.visible,
.fade-in-right.visible {
  opacity: 1;
  transform: translate(0, 0);
}

.hidden {
  display: none !important;
}

@media (min-width: 768px) {
  :root {
    --container-padding: 1.75rem;
  }

  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .trust-strip,
  .feedback-row,
  .audience-grid,
  .authority-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .before-after-grid,
  .science-benefits {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  :root {
    --container-padding: 2rem;
  }

  .hero-grid,
  .problem-layout,
  .solution-layout,
  .science-layout,
  .authority-layout,
  .offer-shell {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-grid {
    align-items: center;
  }

  .trust-strip {
    grid-template-columns: 0.9fr 1.05fr 1.05fr;
  }

  .feedback-row,
  .audience-grid,
  .authority-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .science-benefits {
    grid-template-columns: 1fr;
  }

  .urgency-shell {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .sticky-button {
    display: none;
  }

  .footer {
    padding-bottom: var(--space-10);
  }
}

@media (max-width: 767px) {
  .topbar-inner {
    min-height: auto;
    padding-top: 0.55rem;
    padding-bottom: 0.55rem;
    flex-wrap: wrap;
  }

  .hero-nav {
    align-items: center;
    margin-bottom: var(--space-8);
  }

  .hero-nav .btn {
    min-height: 46px;
    padding-inline: 1rem;
  }

  .hero-product-stage {
    min-height: 280px;
  }

  .hero-video {
    min-height: 280px;
  }

  .hero-proof-grid,
  .offer-points {
    grid-template-columns: 1fr;
  }

  .solution-stage {
    min-height: 380px;
  }

  .solution-callout {
    position: static;
    max-width: none;
    margin-top: var(--space-3);
  }

  .science-illustration {
    min-height: 280px;
  }
}

@media print {
  .topbar,
  .sticky-button,
  .btn {
    display: none !important;
  }
}