:root {
  --color-primary: #E2E8F0;
  --color-secondary: #1A202C;
  --color-accent: #00F5FF;
  --color-background: #FFFFFF;
  --font-main: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(26, 32, 44, 0.06);
  --shadow-glow: 0 0 40px rgba(0, 245, 255, 0.15);
  --spacing: 1.5rem;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: var(--font-main);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
  color: var(--color-secondary);
  background: var(--color-background);
}

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

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

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

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

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing) 1.5rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-primary);
}

.brand img {
  width: 120px;
  height: 40px;
  object-fit: contain;
}

.brand-text {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--color-secondary);
}

.brand-text:hover {
  color: var(--color-accent);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  color: var(--color-secondary);
  font-weight: 300;
  font-size: 0.9rem;
}

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

.burger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: transform var(--transition);
}

.burger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-secondary);
  transition: var(--transition);
}

.burger-btn[aria-expanded="true"] .burger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.burger-btn[aria-expanded="true"] .burger-line:nth-child(2) {
  opacity: 0;
}

.burger-btn[aria-expanded="true"] .burger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.burger-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(26, 32, 44, 0.97);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

.burger-nav {
  padding: 2rem;
}

.burger-list {
  margin: 0;
  padding: 0;
  list-style: none;
  text-align: center;
}

.burger-list li {
  margin-bottom: 1rem;
}

.burger-list a {
  color: var(--color-background);
  font-size: 1.25rem;
  font-weight: 300;
}

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

@media (max-width: 1023px) {
  .nav {
    display: none;
  }

  .burger-btn {
    display: flex;
  }
}

.hero {
  position: relative;
  padding: 4rem var(--spacing);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-primary) 100%);
  opacity: 0.5;
  z-index: 0;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../img/product.webp") center/contain no-repeat;
  background-size: 60%;
  opacity: 0.08;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-left {
  display: flex;
  justify-content: center;
}

.hero-left img {
  width: 280px;
  height: 320px;
  object-fit: contain;
  filter: drop-shadow(0 20px 40px rgba(26, 32, 44, 0.15));
}

.hero-right {
  max-width: 420px;
}

.hero-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(0, 245, 255, 0.1);
  border: 1px solid rgba(0, 245, 255, 0.3);
  border-radius: var(--radius);
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: 2.5rem;
  font-weight: 200;
  letter-spacing: 0.02em;
  color: var(--color-secondary);
}

.hero-tagline {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 300;
  color: var(--color-secondary);
  opacity: 0.9;
}

.hero-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.stars {
  color: #F59E0B;
}

.hero-prices {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.price-old {
  font-size: 1rem;
  color: #94A3B8;
  text-decoration: line-through;
}

.price-current {
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--color-secondary);
}

.order-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 400;
}

.required {
  color: #DC2626;
}

.form-field input,
.form-field textarea {
  padding: 0.75rem 1rem;
  font-family: var(--font-main);
  font-size: 1rem;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  background: var(--color-background);
  transition: border-color var(--transition), box-shadow var(--transition);
}

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

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.form-checkbox input {
  margin-top: 0.2rem;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-secondary);
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-radius var(--transition);
}

.cta-btn:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-glow);
  border-radius: 16px;
}

.section {
  padding: 5rem var(--spacing);
  text-align: center;
}

.section h2 {
  margin: 0 0 1rem;
  font-size: 2rem;
  font-weight: 200;
  letter-spacing: 0.02em;
  color: var(--color-secondary);
}

.section-intro {
  max-width: 600px;
  margin: 0 auto 2.5rem;
  font-size: 1rem;
  font-weight: 300;
  color: var(--color-secondary);
  opacity: 0.9;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.card {
  position: relative;
  padding: 2rem;
  background: var(--color-background);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(226, 232, 240, 0.8);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card-glow {
  position: absolute;
  inset: -1px;
  border-radius: calc(var(--radius) + 1px);
  background: linear-gradient(135deg, rgba(0, 245, 255, 0.05) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

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

.card:hover .card-glow {
  opacity: 1;
}

.card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--color-secondary);
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--color-secondary);
  opacity: 0.85;
}

.preview-card {
  padding: 2rem;
  background: var(--color-background);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(226, 232, 240, 0.8);
  margin: 0;
  transition: transform var(--transition);
}

.preview-card:hover {
  transform: translateY(-4px);
}

.preview-icon {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.preview-card figcaption {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--color-secondary);
  opacity: 0.9;
}

.synergy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.synergy-item {
  padding: 2rem;
  text-align: center;
}

.synergy-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--color-accent);
  background: rgba(0, 245, 255, 0.1);
  border-radius: 50%;
}

.synergy-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 400;
}

.synergy-item p {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 300;
  opacity: 0.9;
}

.composition-list,
.integration-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: left;
}

.composition-item,
.step {
  padding: 2rem;
  background: var(--color-background);
  border-radius: var(--radius);
  border: 1px solid rgba(226, 232, 240, 0.8);
  transition: transform var(--transition);
}

.composition-item:hover,
.step:hover {
  transform: translateY(-2px);
}

.composition-item h3,
.step h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 400;
}

.composition-item p,
.step p {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 300;
  opacity: 0.9;
}

.step-num {
  display: inline-block;
  width: 32px;
  height: 32px;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 32px;
  text-align: center;
  color: var(--color-accent);
  background: rgba(0, 245, 255, 0.15);
  border-radius: 50%;
}

.testimonial {
  padding: 2rem;
  margin: 0;
  background: var(--color-background);
  border-radius: var(--radius);
  border: 1px solid rgba(226, 232, 240, 0.8);
  text-align: left;
  transition: transform var(--transition);
}

.testimonial:hover {
  transform: translateY(-2px);
}

.testimonial p {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 300;
  font-style: italic;
  opacity: 0.95;
}

.testimonial footer {
  font-size: 0.85rem;
  color: var(--color-secondary);
  opacity: 0.7;
}

.faq {
  max-width: 700px;
  margin: 0 auto;
  text-align: left;
}

.faq-item {
  border-bottom: 1px solid var(--color-primary);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 0;
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 400;
  text-align: left;
  color: var(--color-secondary);
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color var(--transition);
}

.faq-question::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--color-accent);
  transition: transform var(--transition);
}

.faq-item.is-open .faq-question::after {
  transform: rotate(45deg);
}

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

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

.faq-answer p {
  margin: 0 0 1.25rem;
  padding: 0 0 0 0;
  font-size: 0.95rem;
  font-weight: 300;
}

.contact-content {
  max-width: 500px;
  margin: 0 auto;
}

.contact-info {
  font-style: normal;
}

.contact-info p {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.contact-link {
  font-family: var(--font-mono);
}

.disclaimer {
  padding: 2rem var(--spacing);
  background: var(--color-primary);
  text-align: center;
}

.disclaimer p {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--color-secondary);
  opacity: 0.9;
}

.footer {
  margin-top: auto;
  padding: 2rem var(--spacing);
  background: var(--color-secondary);
  color: var(--color-primary);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 2rem;
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--color-primary);
  font-size: 0.9rem;
}

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

.footer-copy {
  margin: 0;
  font-size: 0.85rem;
  text-align: center;
  opacity: 0.8;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 300;
  padding: 1.5rem var(--spacing);
  background: var(--color-secondary);
  color: var(--color-primary);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.2);
}

.cookie-banner[hidden] {
  display: none !important;
}

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

.cookie-content p {
  margin: 0 0 1rem;
  font-size: 0.9rem;
}

.cookie-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.cookie-btn {
  padding: 0.5rem 1rem;
  font-family: var(--font-main);
  font-size: 0.9rem;
  background: transparent;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

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

.cookie-accept {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-secondary);
}

.cookie-accept:hover {
  background: #00D4DD;
  border-color: #00D4DD;
}

.cookie-settings-modal {
  position: fixed;
  inset: 0;
  z-index: 301;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  padding: var(--spacing);
}

.cookie-settings-modal[hidden] {
  display: none !important;
}

.cookie-settings-content {
  position: relative;
  max-width: 400px;
  padding: 2rem;
  background: var(--color-background);
  border-radius: var(--radius);
  color: var(--color-secondary);
}

.cookie-settings-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 32px;
  height: 32px;
  font-size: 1.5rem;
  line-height: 1;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-secondary);
}

.cookie-settings-content h3 {
  margin: 0 0 1rem;
  font-size: 1.25rem;
}

.cookie-toggle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.cookie-save {
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-main);
  font-size: 1rem;
  background: var(--color-accent);
  color: var(--color-secondary);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
}

.thank-you-section {
  padding: 6rem var(--spacing);
  text-align: center;
}

.thank-you-section h1 {
  margin: 0 0 1rem;
  font-size: 2.5rem;
  font-weight: 200;
}

.thank-you-section p {
  margin: 0 0 2rem;
  font-size: 1.1rem;
}

.legal-page {
  padding: 4rem var(--spacing);
}

.legal-page h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  font-weight: 200;
}

.legal-page .date {
  margin-bottom: 2rem;
  font-size: 0.9rem;
  opacity: 0.8;
}

.legal-page h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.25rem;
  font-weight: 400;
}

.legal-page h3 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 400;
}

.legal-page p {
  margin: 0 0 1rem;
  font-size: 1rem;
  max-width: 700px;
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

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

  .hero-left {
    order: -1;
  }

  .hero-left img {
    width: 200px;
    height: 230px;
  }

  .grid-3,
  .synergy-grid,
  .composition-list,
  .integration-steps {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 3rem var(--spacing);
  }

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