:root {
  --color-primary: #432323;
  --color-secondary: #2F5755;
  --color-accent: #5A9690;
  --color-light: #E0D9D9;
  --color-white: #FFFFFF;
  --color-black: #1A1A1A;
  --color-gray: #666666;
  --color-gray-light: #F5F5F5;
  
  --font-display: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;
  
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 3rem;
  --space-xl: 4rem;
  --space-xxl: 6rem;
  
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.5rem;
  --radius-full: 50%;
  
  --shadow-sm: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.08);
  --shadow-md: 0 0.25rem 1rem rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 0.5rem 2rem rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 1rem 3rem rgba(0, 0, 0, 0.2);
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  --max-width: 75rem;
  --max-width-narrow: 50rem;
  --max-width-wide: 90rem;
}

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

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-black);
  background-color: var(--color-white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 600;
}

h4 {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 600;
}

p {
  margin-bottom: var(--space-sm);
  font-size: clamp(0.875rem, 2vw, 1.0625rem);
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  -webkit-tap-highlight-color: rgba(90, 150, 144, 0.3);
}

a:hover {
  color: var(--color-accent);
}

@media (max-width: 48rem) {
  a {
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
  }
}

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

@media (max-width: 48rem) {
  img {
    width: 100%;
  }
}

ul, ol {
  margin-left: var(--space-md);
  margin-bottom: var(--space-sm);
}

li {
  margin-bottom: var(--space-xs);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-wide {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--space-md);
}

.main-header {
  position: relative;
  padding: var(--space-md) 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  z-index: 1000;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.brand-logo a {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 900;
  color: var(--color-white);
  letter-spacing: -0.02em;
  transition: transform var(--transition-fast);
}

.brand-logo a:hover {
  transform: scale(1.05);
  color: var(--color-light);
}

.main-nav {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

@media (max-width: 48rem) {
  .main-nav {
    display: none;
  }
}

.main-nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-white);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  position: relative;
}

.main-nav a:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  color: var(--color-white);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 0.375rem;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  z-index: 1001;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  min-width: 2.75rem;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
}

.menu-toggle span {
  width: 1.75rem;
  height: 0.15rem;
  background-color: var(--color-white);
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  display: block;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(0.45rem, 0.45rem);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-100%);
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(0.5rem, -0.5rem);
}

.hero-section {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent) 100%);
}

.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 50%, rgba(67, 35, 35, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(224, 217, 217, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(90, 150, 144, 0.3) 0%, transparent 50%);
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-overlay {
  position: relative;
  z-index: 10;
  width: 100%;
  padding: var(--space-xxl) 0;
}

.hero-content {
  text-align: center;
  color: var(--color-white);
  animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  text-shadow: 0 0.25rem 1rem rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  margin-bottom: var(--space-lg);
  opacity: 0.95;
  max-width: 50rem;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary,
.btn-cta,
.btn-product,
.btn-submit {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
  text-align: center;
  font-family: var(--font-body);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--color-black);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn-secondary:hover {
  background-color: var(--color-white);
  color: var(--color-secondary);
  transform: translateY(-3px);
}

.btn-cta {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  padding: 1rem 2.5rem;
  font-size: 1.0625rem;
  box-shadow: var(--shadow-lg);
}

.btn-cta:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--shadow-xl);
  color: var(--color-white);
}

.btn-product {
  background-color: var(--color-secondary);
  color: var(--color-white);
  width: 100%;
}

.btn-product:hover {
  background-color: var(--color-accent);
  transform: translateY(-2px);
  color: var(--color-white);
}

.btn-submit {
  background-color: var(--color-secondary);
  color: var(--color-white);
  padding: 1rem 2.5rem;
  font-size: 1rem;
}

.btn-submit:hover {
  background-color: var(--color-accent);
  transform: translateY(-2px);
  color: var(--color-white);
}

.intro-section,
.features-section,
.techniques-preview,
.testimonials-section,
.cta-section,
.contact-section {
  padding: var(--space-xxl) 0;
}

.asymmetric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.intro-text h2 {
  margin-bottom: var(--space-md);
}

.intro-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transform: rotate(2deg);
  transition: transform var(--transition-slow);
}

.intro-image:hover {
  transform: rotate(0deg) scale(1.02);
}

.intro-image img {
  width: 100%;
  height: auto;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
}

.features-section {
  background-color: var(--color-gray-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.feature-card {
  background-color: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.feature-card i {
  font-size: 3rem;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.feature-card h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.overlap-layout {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.preview-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.preview-image-wrapper img {
  width: 100%;
  height: auto;
}

.preview-content {
  padding: var(--space-lg);
}

.preview-content h2 {
  margin-bottom: var(--space-md);
}

.technique-list {
  list-style: none;
  margin: var(--space-md) 0;
}

.technique-list li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-size: 1.0625rem;
}

.technique-list i {
  color: var(--color-accent);
  font-size: 1.5rem;
}

.testimonials-section {
  background: linear-gradient(135deg, var(--color-light) 0%, var(--color-white) 100%);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18.75rem, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.testimonial-card {
  background-color: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  position: relative;
  transition: transform var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-5px);
}

.testimonial-text {
  font-style: italic;
  color: var(--color-gray);
  margin-bottom: var(--space-md);
  line-height: 1.8;
}

.testimonial-author h4 {
  color: var(--color-secondary);
  margin-bottom: var(--space-xs);
  font-size: 1rem;
}

.testimonial-author p {
  font-size: 0.875rem;
  color: var(--color-gray);
  margin: 0;
}

.cta-section {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  text-align: center;
}

.cta-content h2 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.cta-content p {
  font-size: 1.125rem;
  margin-bottom: var(--space-lg);
  max-width: 50rem;
  margin-left: auto;
  margin-right: auto;
}

.contact-section {
  background-color: var(--color-gray-light);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.contact-info h2 {
  margin-bottom: var(--space-md);
}

.info-item {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.info-item i {
  font-size: 1.5rem;
  color: var(--color-accent);
  flex-shrink: 0;
}

.info-item h4 {
  margin-bottom: var(--space-xs);
  font-size: 1rem;
}

.info-item p {
  margin: 0;
  color: var(--color-gray);
}

.contact-form-wrapper {
  background-color: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--color-primary);
}

.form-group input,
.form-group textarea {
  padding: 0.75rem;
  border: 1px solid var(--color-light);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
  width: 100%;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(90, 150, 144, 0.1);
}

@media (max-width: 48rem) {
  .form-group input,
  .form-group textarea {
    font-size: 16px;
  }
}

.checkbox-group {
  flex-direction: row;
  align-items: center;
  gap: var(--space-xs);
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin: 0;
  min-width: 1.125rem;
  min-height: 1.125rem;
  cursor: pointer;
  flex-shrink: 0;
  -webkit-appearance: checkbox;
  -moz-appearance: checkbox;
  appearance: checkbox;
  accent-color: var(--color-accent);
}

.checkbox-group label {
  margin: 0;
  font-weight: 400;
  cursor: pointer;
}

@media (max-width: 30rem) {
  .checkbox-group {
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .checkbox-group input[type="checkbox"] {
    margin-top: 0.125rem;
    min-width: 1.25rem;
    min-height: 1.25rem;
    -webkit-appearance: checkbox;
    -moz-appearance: checkbox;
    appearance: checkbox;
  }
}

.map-wrapper {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-top: var(--space-lg);
}

.map-wrapper iframe {
  width: 100%;
  min-height: 25rem;
}

@media (max-width: 48rem) {
  .map-wrapper iframe {
    min-height: 18.75rem;
  }
}

@media (max-width: 30rem) {
  .map-wrapper iframe {
    min-height: 15.625rem;
  }
}

.main-footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-md) 0;
  text-align: center;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-brand p {
  margin: 0;
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--color-white);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.privacy-popup {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-md);
  box-shadow: var(--shadow-xl);
  z-index: 10000;
  transform: translateY(100%);
  transition: transform var(--transition-slow);
}

.privacy-popup.show {
  transform: translateY(0);
}

@media (max-width: 30rem) {
  .privacy-popup {
    padding: var(--space-sm);
  }
}

.popup-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  max-width: var(--max-width);
  margin: 0 auto;
  flex-wrap: wrap;
}

.popup-content p {
  margin: 0;
  font-size: 0.875rem;
  flex: 1;
  min-width: 15rem;
}

.popup-content a {
  color: var(--color-accent);
  text-decoration: underline;
}

.btn-accept {
  background-color: var(--color-accent);
  color: var(--color-white);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-accept:hover {
  background-color: var(--color-secondary);
  transform: translateY(-2px);
}

.page-hero {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent) 100%);
  color: var(--color-white);
  padding: var(--space-xxl) 0;
  text-align: center;
}

.page-hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.techniques-intro,
.benefits-overview,
.about-section {
  padding: var(--space-xxl) 0;
}

.angled-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.intro-stats {
  display: grid;
  gap: var(--space-md);
}

.stat-card {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-secondary) 100%);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  text-align: center;
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: rotate(-2deg);
  transition: transform var(--transition-normal);
}

.stat-card:hover {
  transform: rotate(0deg) scale(1.05);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-white);
  display: block;
  margin-bottom: var(--space-xs);
}

.stat-card p {
  margin: 0;
  font-size: 1rem;
}

.techniques-catalog,
.benefits-detailed {
  padding: var(--space-xxl) 0;
  background-color: var(--color-gray-light);
}

.technique-item,
.benefit-item {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
  margin-bottom: var(--space-xxl);
  position: relative;
}

.asymmetric-left {
  grid-template-columns: 1.2fr 0.8fr;
}

.asymmetric-right {
  grid-template-columns: 0.8fr 1.2fr;
}

.technique-content,
.benefit-content {
  background-color: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.technique-badge {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.technique-steps ol,
.benefit-details ul {
  margin-left: var(--space-md);
  margin-top: var(--space-sm);
}

.technique-benefit {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-secondary);
  font-weight: 600;
  margin-top: var(--space-md);
}

.technique-visual,
.benefit-icon-large {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 18.75rem;
  background: linear-gradient(135deg, var(--color-light) 0%, var(--color-white) 100%);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.benefit-icon-large i {
  font-size: 8rem;
  color: var(--color-accent);
  opacity: 0.6;
}

.breathing-animation {
  width: 12.5rem;
  height: 12.5rem;
  border-radius: var(--radius-full);
  background: radial-gradient(circle, var(--color-accent) 0%, var(--color-secondary) 100%);
  animation: breathe 4s ease-in-out infinite;
  box-shadow: var(--shadow-lg);
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
}

.practice-tips,
.research-section,
.faq-section {
  padding: var(--space-xxl) 0;
}

.tips-grid,
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.tip-card,
.research-card {
  background-color: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
}

.tip-card:hover,
.research-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.tip-card i,
.research-card i {
  font-size: 2.5rem;
  color: var(--color-secondary);
  margin-bottom: var(--space-sm);
}

.science-section {
  padding: var(--space-xxl) 0;
  background-color: var(--color-gray-light);
}

.overlap-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  position: relative;
}

.science-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: rotate(-3deg);
}

.science-image img {
  width: 100%;
  height: auto;
}

.science-list {
  list-style: none;
  margin-top: var(--space-md);
}

.science-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.science-list i {
  color: var(--color-accent);
  font-size: 1.25rem;
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.products-section {
  padding: var(--space-xxl) 0;
  background-color: var(--color-white);
}

.section-intro {
  text-align: center;
  max-width: 50rem;
  margin: 0 auto var(--space-lg);
  color: var(--color-gray);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18.75rem, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.product-card {
  background-color: var(--color-white);
  border: 2px solid var(--color-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-accent);
}

.product-card.featured {
  border-color: var(--color-accent);
  border-width: 3px;
  box-shadow: var(--shadow-lg);
}

.product-badge {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.product-header h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.5rem;
}

.product-price {
  margin: var(--space-md) 0;
}

.price {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-secondary);
  font-family: var(--font-display);
}

.product-features {
  list-style: none;
  margin: var(--space-md) 0;
  text-align: left;
}

.product-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.product-features i {
  color: var(--color-accent);
  font-size: 1.25rem;
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.overlap-left {
  transform: translateX(-2rem);
}

.overlap-right {
  transform: translateX(2rem);
}

.asymmetric-layout {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: var(--space-xl);
  align-items: center;
}

.overview-content,
.about-content {
  padding-right: var(--space-md);
}

.overview-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transform: rotate(3deg);
  transition: transform var(--transition-slow);
}

.overview-image:hover {
  transform: rotate(0deg) scale(1.02);
}

.about-mission {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent) 100%);
  color: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  margin-top: var(--space-lg);
}

.about-mission h3 {
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.about-mission p {
  margin: 0;
}

.research-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: var(--space-sm);
}

.research-stat .stat-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
}

.research-stat .stat-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: center;
}

.faq-list {
  max-width: 50rem;
  margin: var(--space-lg) auto 0;
}

.faq-item {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  font-size: 1.125rem;
  color: var(--color-secondary);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
}

.faq-question:hover {
  background-color: var(--color-gray-light);
}

.faq-question i {
  color: var(--color-accent);
  font-size: 1.5rem;
  flex-shrink: 0;
}

@media (max-width: 30rem) {
  .faq-question {
    align-items: flex-start;
  }

  .faq-question i {
    margin-top: 0.125rem;
  }
}

.faq-answer {
  padding: 0 var(--space-md) var(--space-md);
  color: var(--color-gray);
}

.thankyou-section,
.error-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xxl) 0;
  text-align: center;
}

.thankyou-content,
.error-content {
  max-width: 37.5rem;
}

.thankyou-icon,
.error-number {
  font-size: 5rem;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.error-number {
  font-size: 8rem;
  font-weight: 900;
  font-family: var(--font-display);
  color: var(--color-primary);
  line-height: 1;
}

.thankyou-icon i {
  font-size: 5rem;
}

.thankyou-message,
.error-message {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
}

.thankyou-submessage,
.error-submessage {
  color: var(--color-gray);
  margin-bottom: var(--space-lg);
}

.thankyou-actions,
.error-actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.legal-page {
  padding: var(--space-xxl) 0;
  background-color: var(--color-white);
}

.legal-page h1 {
  text-align: center;
  margin-bottom: var(--space-sm);
}

.legal-updated {
  text-align: center;
  color: var(--color-gray);
  font-size: 0.875rem;
  margin-bottom: var(--space-lg);
}

.legal-content {
  max-width: 50rem;
  margin: 0 auto;
}

.legal-section {
  margin-bottom: var(--space-lg);
}

.legal-section h2 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
  color: var(--color-secondary);
}

.legal-section h3 {
  margin-top: var(--space-md);
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
  color: var(--color-primary);
}

.legal-section h4 {
  margin-top: var(--space-sm);
  margin-bottom: var(--space-xs);
  font-size: 1rem;
}

.legal-section p,
.legal-section li {
  color: var(--color-gray);
  line-height: 1.8;
}

.legal-section strong {
  color: var(--color-black);
  font-weight: 600;
}

.legal-section a {
  color: var(--color-accent);
  text-decoration: underline;
}

@media (max-width: 90rem) {
  .container,
  .container-narrow,
  .container-wide {
    max-width: 85%;
  }
}

@media (max-width: 80rem) {
  :root {
    --space-xxl: 5rem;
  }

  .products-grid {
    grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  }
}

@media (max-width: 64rem) {
  :root {
    --space-xxl: 4rem;
    --space-xl: 3rem;
  }

  .asymmetric-grid,
  .overlap-layout,
  .contact-wrapper,
  .overlap-content,
  .asymmetric-layout {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .technique-item,
  .benefit-item {
    grid-template-columns: 1fr !important;
  }

  .overlap-left,
  .overlap-right {
    transform: translateX(0);
  }

  .intro-image,
  .overview-image,
  .science-image {
    transform: rotate(0);
  }

  .angled-layout {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(1.875rem, 5vw, 3rem);
  }

  h2 {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
  }
}

@media (max-width: 56rem) {
  .technique-visual,
  .benefit-icon-large {
    min-height: 15rem;
  }

  .breathing-animation {
    width: 10rem;
    height: 10rem;
  }
}

@media (max-width: 48rem) {
  :root {
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 2.5rem;
    --space-xxl: 3rem;
  }

  .main-nav {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-xxl) var(--space-md);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    gap: var(--space-lg);
  }

  .main-nav.active {
    transform: translateX(0);
  }

  .main-nav a {
    font-size: 1.25rem;
    padding: var(--space-sm) var(--space-md);
  }

  .menu-toggle {
    display: flex;
  }

  .hero-section {
    min-height: 70vh;
    padding: var(--space-lg) 0;
  }

  .hero-overlay {
    padding: var(--space-xl) 0;
  }

  .hero-actions,
  .thankyou-actions,
  .error-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions a,
  .thankyou-actions a,
  .error-actions a {
    width: 100%;
    text-align: center;
  }

  .features-grid,
  .testimonials-grid,
  .tips-grid,
  .research-grid,
  .products-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }

  .popup-content {
    flex-direction: column;
    text-align: center;
  }

  .btn-primary,
  .btn-secondary,
  .btn-cta,
  .btn-product,
  .btn-submit {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
  }

  .product-card {
    padding: var(--space-md);
  }

  .price {
    font-size: 2rem;
  }

  h1 {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
  }

  h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
  }

  h3 {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
  }
}

@media (max-width: 40rem) {
  :root {
    --space-xs: 0.375rem;
    --space-sm: 0.875rem;
    --space-md: 1.25rem;
    --space-lg: 1.75rem;
    --space-xl: 2.25rem;
    --space-xxl: 2.75rem;
  }

  .container,
  .container-narrow,
  .container-wide,
  .container-fluid {
    padding: 0 var(--space-sm);
  }

  .main-header {
    padding: var(--space-sm) 0;
  }

  .brand-logo a {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
  }

  .hero-section {
    min-height: 65vh;
  }

  .intro-section,
  .features-section,
  .techniques-preview,
  .testimonials-section,
  .cta-section,
  .contact-section,
  .techniques-intro,
  .benefits-overview,
  .about-section,
  .practice-tips,
  .research-section,
  .faq-section,
  .products-section,
  .science-section,
  .techniques-catalog,
  .benefits-detailed {
    padding: var(--space-xl) 0;
  }

  .section-title {
    margin-bottom: var(--space-md);
  }

  .feature-card,
  .testimonial-card,
  .tip-card,
  .research-card {
    padding: var(--space-md);
  }

  .technique-content,
  .benefit-content {
    padding: var(--space-md);
  }

  .contact-form-wrapper {
    padding: var(--space-md);
  }

  .about-mission {
    padding: var(--space-md);
  }

  .technique-visual,
  .benefit-icon-large {
    min-height: 12.5rem;
  }

  .benefit-icon-large i {
    font-size: 6rem;
  }

  .breathing-animation {
    width: 8.75rem;
    height: 8.75rem;
  }
}

@media (max-width: 30rem) {
  html {
    font-size: 14px;
  }

  :root {
    --space-xs: 0.375rem;
    --space-sm: 0.625rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-xxl: 2.5rem;
  }

  .container,
  .container-narrow,
  .container-wide,
  .container-fluid {
    padding: 0 var(--space-sm);
  }

  .main-header {
    padding: var(--space-sm) 0;
  }

  .brand-logo a {
    font-size: 1.375rem;
  }

  .main-nav {
    width: 15rem;
    padding: var(--space-xl) var(--space-sm) var(--space-sm);
  }

  .main-nav a {
    font-size: 0.875rem;
    padding: var(--space-xs) var(--space-sm);
  }

  .hero-section {
    min-height: 60vh;
  }

  .hero-subtitle {
    font-size: clamp(0.875rem, 2.5vw, 1rem);
  }

  .btn-primary,
  .btn-secondary,
  .btn-cta,
  .btn-product,
  .btn-submit {
    padding: 0.625rem 1.25rem;
    font-size: 0.8125rem;
  }

  .btn-cta {
    padding: 0.75rem 1.5rem;
  }

  .feature-card,
  .testimonial-card,
  .tip-card,
  .research-card,
  .technique-content,
  .benefit-content {
    padding: var(--space-md);
  }

  .feature-card i {
    font-size: 2.5rem;
  }

  .tip-card i,
  .research-card i {
    font-size: 2rem;
  }

  .contact-form-wrapper {
    padding: var(--space-md);
  }

  .form-group input,
  .form-group textarea {
    padding: 0.625rem;
    font-size: 0.9375rem;
  }

  .stat-card {
    padding: var(--space-md);
  }

  .stat-number {
    font-size: 2rem;
  }

  .product-card {
    padding: var(--space-md);
  }

  .price {
    font-size: 1.875rem;
  }

  .product-badge,
  .technique-badge {
    font-size: 0.6875rem;
    padding: 0.25rem 0.625rem;
  }

  .breathing-animation {
    width: 8.125rem;
    height: 8.125rem;
  }

  .benefit-icon-large i {
    font-size: 5rem;
  }

  .technique-visual,
  .benefit-icon-large {
    min-height: 10rem;
  }

  .error-number {
    font-size: 4.5rem;
  }

  .thankyou-icon i {
    font-size: 3rem;
  }

  .intro-section,
  .features-section,
  .techniques-preview,
  .testimonials-section,
  .cta-section,
  .contact-section,
  .techniques-intro,
  .benefits-overview,
  .about-section,
  .practice-tips,
  .research-section,
  .faq-section,
  .products-section,
  .science-section,
  .techniques-catalog,
  .benefits-detailed,
  .thankyou-section,
  .error-section,
  .legal-page {
    padding: var(--space-lg) 0;
  }

  .page-hero {
    padding: var(--space-xl) 0;
  }

  h1 {
    font-size: clamp(1.5rem, 5vw, 2.25rem);
    margin-bottom: 0.75rem;
  }

  h2 {
    font-size: clamp(1.25rem, 4vw, 1.875rem);
    margin-bottom: 0.75rem;
  }

  h3 {
    font-size: clamp(1rem, 3vw, 1.375rem);
    margin-bottom: 0.625rem;
  }

  h4 {
    font-size: clamp(0.9375rem, 2.5vw, 1.125rem);
  }

  p {
    font-size: clamp(0.8125rem, 2vw, 1rem);
    margin-bottom: 0.75rem;
  }

  .testimonial-text {
    font-size: 0.9375rem;
  }

  .info-item i {
    font-size: 1.25rem;
  }

  .footer-links a {
    font-size: 0.8125rem;
  }

  .popup-content p {
    font-size: 0.8125rem;
  }

  .btn-accept {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }

  ul, ol {
    margin-left: var(--space-md);
  }

  li {
    margin-bottom: 0.375rem;
    font-size: 0.9375rem;
  }
}

@media (max-width: 23.75rem) {
  html {
    font-size: 13.5px;
  }

  :root {
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 0.875rem;
    --space-lg: 1.25rem;
    --space-xl: 1.75rem;
    --space-xxl: 2.25rem;
  }

  .container,
  .container-narrow,
  .container-wide,
  .container-fluid {
    padding: 0 var(--space-sm);
  }

  .main-header {
    padding: 0.5rem 0;
  }

  .brand-logo a {
    font-size: 1.25rem;
  }

  .menu-toggle {
    padding: 0.25rem;
  }

  .menu-toggle span {
    width: 1.5rem;
  }

  .main-nav a {
    font-size: 1rem;
  }

  .hero-section {
    min-height: 55vh;
  }

  .btn-primary,
  .btn-secondary,
  .btn-cta,
  .btn-product,
  .btn-submit {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
  }

  .feature-card,
  .testimonial-card,
  .tip-card,
  .research-card,
  .technique-content,
  .benefit-content,
  .contact-form-wrapper,
  .stat-card,
  .product-card,
  .about-mission {
    padding: var(--space-md);
  }

  .feature-card i {
    font-size: 2.25rem;
  }

  .stat-number {
    font-size: 1.875rem;
  }

  .price {
    font-size: 1.75rem;
  }

  .breathing-animation {
    width: 7.5rem;
    height: 7.5rem;
  }

  .benefit-icon-large i {
    font-size: 4rem;
  }

  .technique-visual,
  .benefit-icon-large {
    min-height: 9.375rem;
  }

  .error-number {
    font-size: 4rem;
  }

  .thankyou-icon i {
    font-size: 2.75rem;
  }

  h1 {
    font-size: clamp(1.375rem, 5vw, 2rem);
  }

  h2 {
    font-size: clamp(1.125rem, 4vw, 1.75rem);
  }

  h3 {
    font-size: clamp(0.9375rem, 3vw, 1.25rem);
  }

  .form-group input,
  .form-group textarea {
    padding: 0.5rem;
    font-size: 0.875rem;
  }

  .form-group label {
    font-size: 0.875rem;
  }

  .intro-section,
  .features-section,
  .techniques-preview,
  .testimonials-section,
  .cta-section,
  .contact-section,
  .techniques-intro,
  .benefits-overview,
  .about-section,
  .practice-tips,
  .research-section,
  .faq-section,
  .products-section,
  .science-section,
  .techniques-catalog,
  .benefits-detailed {
    padding: var(--space-xl) 0;
  }

  .page-hero,
  .thankyou-section,
  .error-section {
    padding: var(--space-lg) 0;
  }

  .legal-page {
    padding: var(--space-xl) 0;
  }

  .legal-section {
    margin-bottom: var(--space-lg);
  }

  .legal-section h2 {
    font-size: 1.25rem;
  }

  .legal-section h3 {
    font-size: 1.0625rem;
  }
}

@media (max-width: 20rem) {
  html {
    font-size: 13px;
  }

  :root {
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 0.75rem;
    --space-lg: 1.125rem;
    --space-xl: 1.5rem;
    --space-xxl: 2rem;
  }

  .container,
  .container-narrow,
  .container-wide,
  .container-fluid {
    padding: 0 var(--space-sm);
  }

  .main-header {
    padding: 0.375rem 0;
  }

  .brand-logo a {
    font-size: 1.125rem;
  }

  .main-nav a {
    font-size: 0.9375rem;
  }

  .hero-section {
    min-height: 50vh;
  }

  .hero-subtitle {
    font-size: 0.875rem;
  }

  .btn-primary,
  .btn-secondary,
  .btn-cta,
  .btn-product,
  .btn-submit {
    padding: 0.5rem 0.875rem;
    font-size: 0.75rem;
  }

  .feature-card,
  .testimonial-card,
  .tip-card,
  .research-card,
  .technique-content,
  .benefit-content,
  .contact-form-wrapper,
  .stat-card,
  .product-card,
  .about-mission {
    padding: 0.75rem;
  }

  .feature-card i,
  .tip-card i,
  .research-card i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
  }

  .stat-number {
    font-size: 1.75rem;
  }

  .stat-card p,
  .stat-label {
    font-size: 0.875rem;
  }

  .price {
    font-size: 1.625rem;
  }

  .product-badge,
  .technique-badge {
    font-size: 0.625rem;
    padding: 0.25rem 0.5rem;
  }

  .breathing-animation {
    width: 6.875rem;
    height: 6.875rem;
  }

  .benefit-icon-large i {
    font-size: 3.5rem;
  }

  .technique-visual,
  .benefit-icon-large {
    min-height: 8.75rem;
  }

  .error-number {
    font-size: 3.5rem;
  }

  .thankyou-icon i {
    font-size: 2.5rem;
  }

  h1 {
    font-size: clamp(1.25rem, 5vw, 1.875rem);
    margin-bottom: 0.625rem;
  }

  h2 {
    font-size: clamp(1.0625rem, 4vw, 1.625rem);
    margin-bottom: 0.625rem;
  }

  h3 {
    font-size: clamp(0.875rem, 3vw, 1.1875rem);
    margin-bottom: 0.5rem;
  }

  h4 {
    font-size: clamp(0.8125rem, 2.5vw, 1rem);
  }

  p {
    font-size: clamp(0.8125rem, 2vw, 0.9375rem);
    margin-bottom: 0.625rem;
  }

  .form-group input,
  .form-group textarea {
    padding: 0.5rem;
    font-size: 0.8125rem;
  }

  .form-group label {
    font-size: 0.8125rem;
    margin-bottom: 0.375rem;
  }

  .checkbox-group label {
    font-size: 0.75rem;
  }

  .intro-section,
  .features-section,
  .techniques-preview,
  .testimonials-section,
  .cta-section,
  .contact-section,
  .techniques-intro,
  .benefits-overview,
  .about-section,
  .practice-tips,
  .research-section,
  .faq-section,
  .products-section,
  .science-section,
  .techniques-catalog,
  .benefits-detailed {
    padding: var(--space-lg) 0;
  }

  .page-hero,
  .thankyou-section,
  .error-section,
  .legal-page {
    padding: var(--space-xl) 0;
  }

  .section-title {
    margin-bottom: var(--space-md);
  }

  .features-grid,
  .testimonials-grid,
  .tips-grid,
  .research-grid,
  .products-grid {
    gap: var(--space-sm);
  }

  .technique-item,
  .benefit-item {
    margin-bottom: var(--space-lg);
  }

  .testimonial-text {
    font-size: 0.875rem;
    line-height: 1.6;
  }

  .testimonial-author h4 {
    font-size: 0.9375rem;
  }

  .testimonial-author p {
    font-size: 0.8125rem;
  }

  .info-item i {
    font-size: 1.125rem;
  }

  .info-item h4 {
    font-size: 0.9375rem;
  }

  .info-item p {
    font-size: 0.875rem;
  }

  .footer-brand p,
  .footer-links a {
    font-size: 0.75rem;
  }

  .popup-content p {
    font-size: 0.75rem;
  }

  .btn-accept {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
  }

  .legal-section h2 {
    font-size: 1.125rem;
    margin-top: var(--space-md);
  }

  .legal-section h3 {
    font-size: 1rem;
  }

  .legal-section p,
  .legal-section li {
    font-size: 0.875rem;
    line-height: 1.7;
  }

  ul, ol {
    margin-left: var(--space-sm);
  }

  li {
    margin-bottom: 0.375rem;
    font-size: 0.875rem;
  }

  .technique-list li,
  .science-list li,
  .product-features li {
    font-size: 0.875rem;
  }

  .technique-list i,
  .science-list i,
  .product-features i {
    font-size: 1.125rem;
  }

  .faq-question {
    font-size: 0.9375rem;
    padding: var(--space-sm);
  }

  .faq-answer {
    padding: 0 var(--space-sm) var(--space-sm);
    font-size: 0.875rem;
  }

  .legal-updated {
    font-size: 0.8125rem;
  }

  .main-footer {
    padding: var(--space-sm) 0;
  }

  .footer-content {
    gap: var(--space-sm);
  }
}