:root {
  --color-primary: #0d5c5c;
  --color-primary-light: #1a7a7a;
  --color-primary-dark: #083d3d;
  --color-accent: #c97b4a;
  --color-accent-hover: #b86a3a;
  --color-background: #f6f7f8;
  --color-surface: #ffffff;
  --color-text: #2d3748;
  --color-text-light: #5a6978;
  --color-border: #dde2e8;
  --color-error: #c53030;
  --color-success: #276749;
  --font-heading: 'DM Serif Display', Georgia, serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
}

header {
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: var(--spacing-xs) var(--spacing-md);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.logo:hover {
  color: var(--color-primary-light);
}

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

.nav-link {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
  background: rgba(13, 92, 92, 0.08);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  color: var(--color-primary);
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
}

.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin: 0;
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-md);
  flex-direction: column;
  gap: 0;
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav .nav-link {
  padding: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav .nav-link:last-child {
  border-bottom: none;
}

main {
  min-height: 60vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

section {
  padding: var(--spacing-xl) 0;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.hero {
  background: linear-gradient(135deg, #0d5c5c 0%, #1a7a7a 50%, #083d3d 100%);
  color: var(--color-surface);
  padding: var(--spacing-lg) 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--spacing-xl);
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero-image-wrap {
  position: relative;
}

.hero-image-wrap img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero-badges {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: rgba(255, 255, 255, 0.2);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
}

.hero-content h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.hero-content p {
  margin-bottom: var(--spacing-md);
  opacity: 0.95;
}

.price-block {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.price-current {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
}

.price-old {
  font-size: 1.25rem;
  text-decoration: line-through;
  opacity: 0.7;
}

.order-form {
  background: rgba(255, 255, 255, 0.1);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group input.error,
.form-group textarea.error {
  border-color: var(--color-error);
}

.form-error {
  font-size: 0.875rem;
  color: #feb2b2;
  margin-top: var(--spacing-xs);
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.checkbox-group input {
  width: auto;
  margin-top: 4px;
}

.checkbox-group label {
  font-size: 0.875rem;
  cursor: pointer;
}

.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  width: 100%;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-surface);
}

.btn-secondary {
  background: var(--color-primary-light);
  color: var(--color-surface);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-surface);
}

section#characteristics {
  background: linear-gradient(180deg, #edf7f7 0%, var(--color-background) 100%);
}

.characteristics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.char-card {
  background: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border-top: 3px solid var(--color-primary);
}

.char-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.char-card h3 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 1.25rem;
}

.benefits-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.benefit-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
  border-left: 4px solid var(--color-accent);
}

.benefit-item:hover {
  background: rgba(13, 92, 92, 0.05);
}

.benefit-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--color-primary);
  color: var(--color-surface);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
}

.benefit-item h3 {
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-xs);
  font-size: 1.125rem;
}

.description-section {
  background: linear-gradient(180deg, var(--color-background) 0%, #e8f4f4 50%, var(--color-surface) 100%);
}

.description-content {
  max-width: 800px;
  margin: 0 auto;
}

.description-content p {
  margin-bottom: var(--spacing-md);
}

.usage-section {
  background: var(--color-surface);
  box-shadow: inset 0 2px 10px rgba(0,0,0,0.03);
}

.usage-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.step-card {
  background: var(--color-background);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
}

.step-card h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
}

.composition-section {
  background: linear-gradient(135deg, #eef6f6 0%, var(--color-background) 100%);
}

.composition-list {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.composition-list ul {
  list-style: none;
}

.composition-list li {
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.composition-list li:last-child {
  border-bottom: none;
}

.testimonials-section {
  background: var(--color-surface);
  border-top: 2px solid var(--color-accent);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.testimonial-card {
  background: var(--color-background);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition-fast);
  border: 1px solid var(--color-border);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-md);
}

.testimonial-card blockquote {
  font-style: italic;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.testimonial-card cite {
  display: block;
  font-style: normal;
  font-weight: 600;
  color: var(--color-primary);
}

.faq-section {
  background: var(--color-background);
  border-top: 1px solid var(--color-border);
}

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

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

.faq-question {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  background: none;
  border: none;
  text-align: left;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: rgba(13, 92, 92, 0.05);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-primary);
}

.faq-item.active .faq-question::after {
  content: '−';
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer {
  padding: 0 var(--spacing-lg);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-answer-inner {
  padding: 0 var(--spacing-lg) var(--spacing-md);
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-md);
  margin: 0 calc(-1 * var(--spacing-lg));
  margin-top: 0;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

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

.cta-section h2 {
  font-family: var(--font-heading);
  margin-bottom: var(--spacing-md);
}

.cta-section .btn {
  margin-top: var(--spacing-md);
}

.disclaimer {
  background: #fef3c7;
  color: #92400e;
  padding: var(--spacing-md);
  font-size: 0.875rem;
  text-align: center;
  border-top: 1px solid #fcd34d;
}

footer {
  background: var(--color-primary-dark);
  color: var(--color-surface);
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  margin-bottom: var(--spacing-sm);
  font-size: 1rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  display: block;
  margin-bottom: var(--spacing-xs);
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--color-surface);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.875rem;
  opacity: 0.9;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-surface);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
  padding: var(--spacing-lg);
  z-index: 9999;
  display: none;
}

.cookie-banner.visible {
  display: block;
}

.cookie-banner-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.cookie-banner h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
}

.cookie-banner p {
  margin-bottom: var(--spacing-md);
  font-size: 0.9375rem;
  color: var(--color-text-light);
}

.cookie-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.cookie-settings {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.cookie-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-sm);
}

.cookie-toggle label {
  font-size: 0.9375rem;
}

.toggle-switch {
  width: 48px;
  height: 26px;
  background: var(--color-border);
  border-radius: 13px;
  position: relative;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.toggle-switch.active {
  background: var(--color-primary);
}

.toggle-switch::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  background: var(--color-surface);
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.toggle-switch.active::after {
  transform: translateX(22px);
}

.legal-page .container {
  max-width: 800px;
}

.legal-page h1 {
  font-family: var(--font-heading);
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary-dark);
}

.legal-page h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
}

.legal-page p,
.legal-page ul {
  margin-bottom: var(--spacing-md);
}

.legal-page ul {
  padding-left: var(--spacing-lg);
}

.home-link {
  display: inline-block;
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.home-link:hover {
  color: var(--color-primary-light);
}

.thank-you-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.thank-you-content h1 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.thank-you-content p {
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-light);
}

@media (max-width: 1000px) {
  nav:not(.mobile-nav) .nav-link {
    display: none;
  }

  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .mobile-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .cookie-buttons {
    flex-direction: column;
  }

  .cookie-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.5rem;
  }

  .price-block {
    flex-direction: column;
    align-items: flex-start;
  }
}