:root {
  --color-primary: #1A1A1C;
  --color-secondary: #D1D5DB;
  --color-accent: #A7F3D0;
  --color-background: #FFFFFF;
  --font-main: "DM Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Consolas, monospace;
  --radius: 6px;
  --radius-micro: 4px;
  --shadow: 0 2px 8px rgba(26, 26, 28, 0.06);
  --shadow-float: 0 12px 40px rgba(26, 26, 28, 0.12);
  --spacing: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --border-thin: 0.5px solid rgba(26, 26, 28, 0.12);
  --border-hover: 1px solid rgba(26, 26, 28, 0.2);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 72px;
}

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

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

body {
  margin: 0;
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-primary);
  background: var(--color-background);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

main {
  flex: 1;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-background);
  border-bottom: var(--border-thin);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  transition: box-shadow var(--transition);
}

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

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

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

.header-brand span {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
}

.nav-desktop {
  display: none;
}

.nav-desktop ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2rem;
}

.nav-desktop a {
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  padding: 0.35em 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), transform var(--transition);
}

.nav-desktop a:hover {
  border-bottom-color: var(--color-accent);
  transform: translateY(-2px);
}

.burger-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  z-index: 110;
  transition: transform var(--transition);
}

.burger-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition), opacity var(--transition);
}

.burger-btn[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.burger-btn[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.burger-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26, 26, 28, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
  z-index: 98;
}

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

.burger-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 1023px;
  height: 100vh;
  background: var(--color-background);
  padding: calc(var(--header-height) + var(--spacing)) var(--spacing-lg) var(--spacing);
  transform: translateX(100%);
  transition: transform var(--transition);
  z-index: 99;
  overflow-y: auto;
}

.burger-menu.active {
  transform: translateX(0);
}

.burger-menu nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.burger-menu nav a {
  display: block;
  padding: 1rem 0;
  font-size: 1.1rem;
  letter-spacing: 0.03em;
  border-bottom: var(--border-thin);
  transition: padding-left var(--transition), color var(--transition);
}

.burger-menu nav a:hover {
  padding-left: 0.5rem;
  color: var(--color-accent);
}

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

  .nav-desktop {
    display: block;
  }

  .burger-overlay.active,
  .burger-menu.active {
    display: none;
  }
}

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

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin: 0 0 var(--spacing);
  color: var(--color-primary);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-secondary);
  letter-spacing: 0.02em;
  margin: 0 0 var(--spacing-lg);
  max-width: 60ch;
}

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

.card:hover {
  border-color: rgba(26, 26, 28, 0.2);
  box-shadow: var(--shadow-float);
  transform: translateY(-2px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 2px solid var(--color-primary);
  background: var(--color-primary);
  color: var(--color-background);
  cursor: pointer;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

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

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--color-accent);
  width: 0%;
  transition: width 0.3s ease;
}

.hero {
  padding: var(--spacing-xl) var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  min-height: calc(100vh - var(--header-height) - 80px);
}

.hero-content {
  order: 2;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(167, 243, 208, 0.15);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-micro);
  margin-bottom: var(--spacing);
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  margin: 0 0 var(--spacing);
}

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

.hero-rating span {
  font-size: 0.9rem;
  color: var(--color-secondary);
}

.hero-desc {
  margin: 0 0 var(--spacing);
  max-width: 50ch;
  color: var(--color-primary);
  opacity: 0.9;
}

.hero-price-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: var(--spacing-lg);
}

.hero-price {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
}

.hero-price-old {
  font-size: 1rem;
  color: var(--color-secondary);
  text-decoration: line-through;
}

.hero-visual {
  position: relative;
  order: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-visual .product-img-wrap {
  position: relative;
  border: var(--border-thin);
  border-radius: var(--radius);
  padding: var(--spacing);
  background: linear-gradient(135deg, rgba(167, 243, 208, 0.08) 0%, transparent 50%);
}

.hero-visual img {
  width: 100%;
  max-width: 280px;
  height: auto;
}

.hero-visual .product-img-wrap:hover {
  animation: pulse-soft 2s ease-in-out infinite;
}

@keyframes pulse-soft {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.92; }
}

.order-form {
  background: var(--color-background);
  border: var(--border-thin);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  max-width: 420px;
}

.order-form h2 {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  letter-spacing: 0.03em;
  margin: 0 0 var(--spacing);
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.form-group label .required {
  color: #c53030;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 1rem;
  font-family: var(--font-main);
  font-size: 1rem;
  border: var(--border-thin);
  border-radius: var(--radius-micro);
  background: var(--color-background);
  transition: border-color var(--transition);
}

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

.form-group textarea {
  min-height: 80px;
  resize: vertical;
}

.form-group.error input,
.form-group.error textarea {
  border-color: #c53030;
}

.form-group .error-msg {
  font-size: 0.8rem;
  color: #c53030;
  margin-top: 0.25rem;
}

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

.gdpr-checkbox input {
  margin-top: 0.25rem;
  width: auto;
}

.gdpr-checkbox label {
  font-size: 0.85rem;
  line-height: 1.5;
}

.disclaimer-block {
  padding: var(--spacing);
  margin: var(--spacing-lg) 0;
  border: var(--border-thin);
  border-radius: var(--radius);
  background: rgba(209, 213, 219, 0.2);
  font-size: 0.875rem;
  color: var(--color-primary);
  line-height: 1.6;
}

.disclaimer-block p {
  margin: 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

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

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 600px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.content-card {
  padding: var(--spacing-lg);
  border: var(--border-thin);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.content-card:hover {
  border-color: rgba(26, 26, 28, 0.2);
  box-shadow: var(--shadow-float);
  transform: translateY(-2px);
}

.content-card h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  letter-spacing: 0.03em;
  margin: 0 0 0.5rem;
}

.content-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-primary);
  opacity: 0.9;
}

.contact-section a[href^="mailto"] {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  padding: 0.75rem 1.25rem;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}

.contact-section a[href^="mailto"]:hover {
  background: var(--color-primary);
  color: var(--color-background);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border: var(--border-thin);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item:hover {
  border-color: rgba(26, 26, 28, 0.2);
}

.faq-item summary {
  padding: 1rem var(--spacing);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

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

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item[open] summary {
  border-bottom: var(--border-thin);
}

.faq-item .faq-answer {
  padding: 1rem var(--spacing);
  font-size: 0.95rem;
  color: var(--color-primary);
  opacity: 0.9;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

.site-footer {
  margin-top: auto;
  padding: var(--spacing-lg) var(--spacing-lg);
  border-top: var(--border-thin);
  background: var(--color-background);
}

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

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--color-primary);
  opacity: 0.8;
  transition: opacity var(--transition);
}

.footer-links a:hover {
  opacity: 1;
}

.copyright {
  font-size: 0.875rem;
  color: var(--color-secondary);
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-primary);
  color: var(--color-background);
  padding: var(--spacing-lg);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  transform: translateY(100%);
  transition: transform var(--transition);
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-banner h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

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

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

.cookie-actions button {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  border: none;
  border-radius: var(--radius-micro);
  cursor: pointer;
  transition: opacity var(--transition);
}

.cookie-actions .btn-accept {
  background: var(--color-accent);
  color: var(--color-primary);
}

.cookie-actions .btn-reject {
  background: transparent;
  color: var(--color-background);
  border: 1px solid currentColor;
}

.cookie-settings-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1001;
  align-items: center;
  justify-content: center;
  padding: var(--spacing);
}

.cookie-settings-modal.show {
  display: flex;
}

.cookie-settings-inner {
  background: var(--color-background);
  max-width: 440px;
  width: 100%;
  padding: var(--spacing-lg);
  border-radius: var(--radius);
  max-height: 90vh;
  overflow-y: auto;
}

.cookie-settings-inner h3 {
  margin: 0 0 1rem;
}

.cookie-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: var(--border-thin);
}

.cookie-toggle label {
  font-size: 0.95rem;
}

.cookie-toggle input {
  width: auto;
}

.legal-page {
  padding: var(--spacing-xl) var(--spacing-lg);
  max-width: 800px;
  margin: 0 auto;
}

.legal-page h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--spacing);
}

.legal-page .date {
  font-size: 0.9rem;
  color: var(--color-secondary);
  margin-bottom: var(--spacing-lg);
}

.legal-page h2 {
  font-size: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.legal-page p,
.legal-page ul {
  margin: 0 0 1rem;
}

.thank-you-page {
  min-height: calc(100vh - var(--header-height) - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  text-align: center;
}

.thank-you-page h1 {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--spacing);
}

.decor-line {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0.3;
  pointer-events: none;
}

@media (min-width: 768px) {
  .hero {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .hero-content {
    order: 1;
  }

  .hero-visual {
    order: 2;
  }
}