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

body {
  font-family: 'Inter', sans-serif;
  color: #1a1a1a;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  line-height: 1.2;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.header {
  background: #fff;
  border-bottom: 1px solid #e5e5e5;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.logo {
  font-family: 'Playfair Display', serif;
  font-size: 24px;
  font-weight: 700;
  color: #2d5f4f;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: #1a1a1a;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #2d5f4f;
}

.btn-primary-small {
  background: #2d5f4f;
  color: #fff;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
}

.btn-primary {
  display: inline-block;
  background: #2d5f4f;
  color: #fff;
  padding: 16px 40px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  transition: background 0.3s, transform 0.2s;
  box-shadow: 0 4px 12px rgba(45, 95, 79, 0.2);
}

.btn-primary:hover {
  background: #234a3d;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(45, 95, 79, 0.3);
}

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: #2d5f4f;
  padding: 14px 32px;
  border: 2px solid #2d5f4f;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
}

.btn-secondary:hover {
  background: #2d5f4f;
  color: #fff;
}

.hero {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8faf9 0%, #ffffff 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero h1 {
  font-size: 52px;
  color: #1a1a1a;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 18px;
  color: #4a4a4a;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-cta {
  margin-bottom: 24px;
}

.guarantee {
  margin-top: 12px;
  color: #6a6a6a;
  font-size: 14px;
}

.trust-badges {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.badge {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stars {
  color: #f5a623;
  font-size: 18px;
}

.badge span {
  font-size: 14px;
  color: #4a4a4a;
}

.hero-image img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.social-proof {
  padding: 60px 0;
  background: #fff;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: #f8faf9;
  padding: 28px;
  border-radius: 10px;
  border: 1px solid #e5e5e5;
}

.review-card .stars {
  margin-bottom: 12px;
}

.review-card p {
  color: #1a1a1a;
  margin-bottom: 16px;
  line-height: 1.6;
}

.reviewer {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.reviewer strong {
  color: #1a1a1a;
  font-weight: 600;
}

.reviewer span {
  color: #6a6a6a;
  font-size: 13px;
}

.benefits {
  padding: 80px 0;
  background: #fff;
}

.benefits h2 {
  text-align: center;
  font-size: 42px;
  margin-bottom: 60px;
  color: #1a1a1a;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.benefit-card {
  padding: 32px;
  border: 1px solid #e5e5e5;
  border-radius: 10px;
  transition: box-shadow 0.3s, transform 0.3s;
}

.benefit-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.benefit-icon {
  font-family: 'Playfair Display', serif;
  font-size: 36px;
  font-weight: 700;
  color: #2d5f4f;
  margin-bottom: 16px;
}

.benefit-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
  color: #1a1a1a;
}

.benefit-card p {
  color: #4a4a4a;
  line-height: 1.7;
}

.science {
  padding: 80px 0;
  background: #f8faf9;
}

.science-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.science h2 {
  font-size: 42px;
  margin-bottom: 32px;
}

.stat-row {
  display: flex;
  gap: 40px;
  margin-bottom: 32px;
}

.stat-number {
  font-family: 'Playfair Display', serif;
  font-size: 48px;
  font-weight: 700;
  color: #2d5f4f;
  line-height: 1;
}

.stat-label {
  color: #4a4a4a;
  font-size: 14px;
  margin-top: 8px;
}

.science-description {
  color: #4a4a4a;
  line-height: 1.7;
  margin-bottom: 28px;
}

.science-image img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.how-it-works {
  padding: 80px 0;
  background: #fff;
}

.how-it-works h2 {
  text-align: center;
  font-size: 42px;
  margin-bottom: 60px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.step {
  text-align: center;
  padding: 32px;
}

.step-number {
  width: 60px;
  height: 60px;
  background: #2d5f4f;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  margin: 0 auto 20px;
}

.step h3 {
  font-size: 22px;
  margin-bottom: 12px;
}

.step p {
  color: #4a4a4a;
  line-height: 1.7;
}

.cta-banner {
  padding: 80px 0;
  background: linear-gradient(135deg, #2d5f4f 0%, #1f4437 100%);
  text-align: center;
}

.cta-content h2 {
  color: #fff;
  font-size: 42px;
  margin-bottom: 16px;
}

.cta-content > p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 18px;
  margin-bottom: 32px;
}

.cta-banner .btn-primary {
  background: #fff;
  color: #2d5f4f;
}

.cta-banner .btn-primary:hover {
  background: #f0f0f0;
}

.cta-subtext {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  margin-top: 16px;
}

.faq {
  padding: 80px 0;
  background: #fff;
}

.faq h2 {
  text-align: center;
  font-size: 42px;
  margin-bottom: 60px;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  padding: 28px 0;
  border-bottom: 1px solid #e5e5e5;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: #1a1a1a;
}

.faq-item p {
  color: #4a4a4a;
  line-height: 1.7;
}

.footer {
  background: #1a1a1a;
  color: #fff;
  padding: 60px 0 24px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 18px;
  margin-bottom: 16px;
  color: #fff;
}

.footer-col p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  margin-bottom: 10px;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
}

.page-hero {
  padding: 60px 0 40px;
  background: #f8faf9;
}

.breadcrumb {
  font-size: 14px;
  color: #6a6a6a;
  margin-bottom: 16px;
}

.breadcrumb a {
  color: #2d5f4f;
  text-decoration: none;
}

.page-hero h1 {
  font-size: 48px;
  margin-bottom: 16px;
}

.page-subtitle {
  font-size: 18px;
  color: #4a4a4a;
}

.clinical-study {
  padding: 80px 0;
  background: #fff;
}

.study-header {
  text-align: center;
  margin-bottom: 60px;
}

.study-header h2 {
  font-size: 42px;
  margin-bottom: 12px;
}

.study-header p {
  color: #4a4a4a;
  font-size: 16px;
}

.study-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.study-stat {
  text-align: center;
  padding: 32px;
  background: #f8faf9;
  border-radius: 10px;
}

.stat-large {
  font-family: 'Playfair Display', serif;
  font-size: 56px;
  font-weight: 700;
  color: #2d5f4f;
  line-height: 1;
  margin-bottom: 12px;
}

.study-stat p {
  color: #4a4a4a;
  font-size: 14px;
  line-height: 1.5;
}

.before-after {
  padding: 80px 0;
  background: #f8faf9;
}

.before-after h2 {
  text-align: center;
  font-size: 42px;
  margin-bottom: 16px;
}

.section-intro {
  text-align: center;
  color: #4a4a4a;
  margin-bottom: 60px;
}

.ba-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.ba-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.ba-card img {
  width: 100%;
  display: block;
}

.ba-info {
  padding: 28px;
}

.ba-info h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.ba-info p {
  color: #4a4a4a;
  line-height: 1.6;
  margin-bottom: 12px;
}

.timeline {
  font-size: 13px;
  color: #2d5f4f;
  font-weight: 600;
}

.timeline-results {
  padding: 80px 0;
  background: #fff;
}

.timeline-results h2 {
  text-align: center;
  font-size: 42px;
  margin-bottom: 60px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 40px;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #e5e5e5;
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-marker {
  font-weight: 700;
  color: #2d5f4f;
  font-size: 18px;
}

.timeline-content h3 {
  font-size: 22px;
  margin-bottom: 8px;
}

.timeline-content p {
  color: #4a4a4a;
  line-height: 1.7;
}

.testimonials-detailed {
  padding: 80px 0;
  background: #f8faf9;
}

.testimonials-detailed h2 {
  text-align: center;
  font-size: 42px;
  margin-bottom: 60px;
}

.testimonial-cards {
  display: grid;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.testimonial-card-large {
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.testimonial-card-large .stars {
  margin-bottom: 16px;
}

.testimonial-text {
  color: #1a1a1a;
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.testimonial-author strong {
  color: #1a1a1a;
  font-weight: 600;
}

.testimonial-author span {
  color: #6a6a6a;
  font-size: 14px;
}

@media (max-width: 768px) {
  .hero-content,
  .science-content,
  .benefits-grid,
  .steps-grid,
  .reviews-grid,
  .study-stats,
  .ba-grid,
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: 36px;
  }
  
  .nav-links {
    gap: 16px;
    font-size: 14px;
  }
  
  h2 {
    font-size: 32px;
  }
}