:root {
  --color-primary: #0F1115;
  --color-secondary: #E2E8F0;
  --color-accent: #00F5FF;
  --color-background: #F8FAFC;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 28px;
  --radius-sm: 16px;
  --shadow: 0 4px 24px rgba(15, 17, 21, 0.06);
  --shadow-hover: 0 12px 40px rgba(0, 245, 255, 0.15);
  --spacing: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-primary);
  background: var(--color-background);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  padding: 0.75rem 1rem;
  background: var(--color-primary);
  color: var(--color-background);
  z-index: 10001;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

ul {
  list-style: none;
}

main {
  flex: 1;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-xl) 0;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-secondary);
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--spacing-xl);
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(248, 250, 252, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
  transition: background var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing) var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.logo-link {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-primary);
}

.logo-link:hover {
  color: var(--color-accent);
}

.nav-desktop {
  display: none;
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
}

.nav-desktop a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-primary);
  position: relative;
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-desktop a:hover::after {
  width: 100%;
}

.burger-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1002;
  transition: transform var(--transition);
}

@media (min-width: 1024px) {
  .burger-btn {
    display: none;
  }
}

.burger-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition), opacity var(--transition);
}

.burger-btn.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger-btn.active span:nth-child(2) {
  opacity: 0;
}

.burger-btn.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.burger-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 17, 21, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
  z-index: 999;
}

.burger-overlay.active {
  opacity: 1;
  visibility: visible;
}

.burger-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(100%, 320px);
  max-width: 1023px;
  height: 100vh;
  background: var(--color-background);
  box-shadow: -4px 0 24px rgba(15, 17, 21, 0.1);
  padding: 5rem var(--spacing-lg) var(--spacing-lg);
  transition: right var(--transition);
  z-index: 1001;
  overflow-y: auto;
}

.burger-menu.active {
  right: 0;
}

.burger-nav a {
  display: block;
  padding: var(--spacing);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-primary);
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
  transition: background var(--transition), color var(--transition);
}

.burger-nav a:hover {
  background: rgba(0, 245, 255, 0.08);
  color: var(--color-accent);
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

@media (min-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-text h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing);
  color: var(--color-primary);
}

.hero-text p {
  font-size: 1.125rem;
  color: var(--color-primary);
  opacity: 0.9;
  margin-bottom: var(--spacing-lg);
}

.hero-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--spacing);
}

.hero-rating-stars {
  color: #F59E0B;
  font-size: 1.25rem;
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  background: linear-gradient(135deg, rgba(0, 245, 255, 0.2), rgba(0, 245, 255, 0.1));
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--spacing-lg);
}

.hero-price {
  display: flex;
  align-items: center;
  gap: var(--spacing);
  margin-bottom: var(--spacing-xl);
}

.hero-price-current {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
}

.hero-price-old {
  font-size: 1.25rem;
  color: var(--color-secondary);
  text-decoration: line-through;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-product-img {
  max-width: 320px;
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}

.hero-product-img:hover {
  transform: scale(1.02);
}

.order-form-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-radius: var(--radius);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow);
  margin-top: var(--spacing-xl);
}

.order-form h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  background: white;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 245, 255, 0.2);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: var(--spacing-lg);
}

.form-checkbox input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--color-accent);
}

.form-checkbox label {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-primary);
}

.form-checkbox a {
  color: var(--color-accent);
  text-decoration: underline;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), #00B8D4);
  color: var(--color-primary);
  width: 100%;
}

.btn-primary:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: white;
  border-radius: var(--radius);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.card p {
  font-size: 0.9375rem;
  color: var(--color-primary);
  opacity: 0.9;
}

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

@media (min-width: 768px) {
  .content-grid {
    grid-template-columns: 1fr 1fr;
  }
  .content-grid.reverse .content-block:first-child { order: 2; }
  .content-grid.reverse .content-block:last-child { order: 1; }
}

.content-block h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing);
  color: var(--color-primary);
}

.content-block p {
  margin-bottom: var(--spacing);
  color: var(--color-primary);
  opacity: 0.9;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.testimonial-card {
  background: white;
  border-radius: var(--radius);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow);
}

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

.testimonial-card cite {
  font-size: 0.875rem;
  color: var(--color-secondary);
  font-style: normal;
}

.contact-section {
  background: linear-gradient(135deg, rgba(0, 245, 255, 0.05), rgba(0, 245, 255, 0.02));
  border-radius: var(--radius);
}

.contact-content {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.contact-content h2 {
  margin-bottom: var(--spacing);
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--color-accent), #00B8D4);
  color: var(--color-primary);
  font-weight: 600;
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition);
}

.contact-email:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}

.disclaimer {
  background: rgba(226, 232, 240, 0.3);
  border-radius: var(--radius-sm);
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  font-size: 0.875rem;
  color: var(--color-primary);
  text-align: center;
  line-height: 1.6;
}

.footer {
  background: var(--color-primary);
  color: var(--color-secondary);
  padding: var(--spacing-xl) var(--spacing-lg);
  margin-top: auto;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  text-align: center;
}

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

.footer-links a {
  color: var(--color-secondary);
  font-size: 0.9375rem;
}

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

.footer-copyright {
  font-size: 0.875rem;
  opacity: 0.9;
}

.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), #00B8D4);
  width: 0%;
  z-index: 10000;
  transition: width 0.1s ease;
}

.cookie-consent {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-primary);
  color: var(--color-secondary);
  padding: var(--spacing-lg);
  z-index: 9999;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.2);
  transform: translateY(100%);
  transition: transform var(--transition);
}

.cookie-consent.visible {
  transform: translateY(0);
}

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

.cookie-consent h4 {
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.cookie-consent p {
  font-size: 0.875rem;
  margin-bottom: var(--spacing);
  opacity: 0.9;
}

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

.cookie-buttons .btn {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.cookie-settings {
  margin-top: var(--spacing);
  padding-top: var(--spacing);
  border-top: 1px solid rgba(226, 232, 240, 0.2);
}

.cookie-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.cookie-toggle label {
  font-size: 0.875rem;
}

.cookie-toggle input[type="checkbox"] {
  width: 44px;
  height: 24px;
  accent-color: var(--color-accent);
}

.faq-item {
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

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

.faq-trigger:hover {
  color: var(--color-accent);
}

.faq-trigger::after {
  content: '+';
  font-size: 1.5rem;
  transition: transform var(--transition);
}

.faq-item.active .faq-trigger::after {
  transform: rotate(45deg);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}

.faq-content-inner {
  padding: 0 var(--spacing) var(--spacing);
}

.legal-page main {
  padding: 6rem 0 var(--spacing-xl);
}

.legal-page h1 {
  font-size: 2rem;
  margin-bottom: var(--spacing-lg);
}

.legal-page h2 {
  font-size: 1.25rem;
  margin: var(--spacing-lg) 0 var(--spacing);
}

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

.thank-you-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-xl);
}

.thank-you-content h1 {
  font-size: 2rem;
  margin-bottom: var(--spacing);
}

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

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent), #00B8D4);
  color: var(--color-primary);
}

.btn-accent:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}