:root {
  --color-primary: #1A1A1B;
  --color-secondary: #F9FAFB;
  --color-accent: #89FF00;
  --color-background: #FFFFFF;
  --color-border: rgba(26, 26, 27, 0.15);
  --font-main: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 2px;
  --shadow: 0 4px 24px rgba(26, 26, 27, 0.06);
  --spacing: 1.5rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  --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;
  overflow-x: hidden;
}

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;
}

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

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

a:hover {
  color: var(--color-primary);
  opacity: 0.9;
}

.main {
  flex: 1;
}

.container {
  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) var(--spacing-lg);
  background: var(--color-background);
  border-bottom: 0.5px solid var(--color-border);
  min-height: 72px;
}

.header__brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

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

.nav__list {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav__link {
  color: var(--color-primary);
  font-weight: 500;
  font-size: 0.9rem;
  position: relative;
}

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

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav__link:hover::after {
  width: 100%;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
  transition: transform var(--transition);
}

.burger:hover {
  transform: scale(1.05);
}

.burger__line {
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

.burger[aria-expanded="true"] .burger__line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

.burger[aria-expanded="true"] .burger__line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

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

  .burger {
    display: flex;
  }
}

.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(26, 26, 27, 0.95);
  z-index: 105;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

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

.nav-overlay[aria-hidden="true"] {
  pointer-events: none;
}

.nav-overlay[aria-hidden="false"] {
  pointer-events: auto;
}

.nav-overlay__list {
  list-style: none;
  text-align: center;
}

.nav-overlay__link {
  display: block;
  padding: 10px;
  color: var(--color-secondary);
  font-size: 1.25rem;
  font-weight: 500;
  transition: color var(--transition), transform var(--transition);
}

.nav-overlay__link:hover {
  color: var(--color-accent);
  transform: translateX(4px);
}

.hero {
  position: relative;
  padding: var(--spacing-xl) var(--spacing);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-background) 100%);
  z-index: 0;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(137, 255, 0, 0.03) 100%);
  z-index: 1;
}

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing);
  color: var(--color-primary);
}

.hero__tagline {
  font-size: 1.25rem;
  color: var(--color-primary);
  opacity: 0.9;
  margin-bottom: var(--spacing);
}

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

.hero__stars {
  color: var(--color-accent);
  font-size: 1rem;
}

.hero__rating-text {
  font-weight: 600;
  font-size: 0.9rem;
}

.hero__desc {
  margin-bottom: var(--spacing);
  max-width: 560px;
  color: var(--color-primary);
  opacity: 0.85;
}

.hero__badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 0.5px solid var(--color-primary);
  font-size: 0.85rem;
  margin-bottom: var(--spacing);
  border-radius: var(--radius);
}

.hero__pricing {
  display: flex;
  align-items: baseline;
  gap: var(--spacing);
  margin-bottom: var(--spacing-lg);
}

.hero__price-old {
  font-size: 1.25rem;
  text-decoration: line-through;
  opacity: 0.6;
}

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

.hero__form-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
  max-width: 800px;
}

.hero__product-figure {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__product-figure img {
  width: 240px;
  height: 240px;
  object-fit: contain;
}

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

  .hero__product-figure {
    order: -1;
  }

  .hero__product-figure img {
    width: 180px;
    height: 180px;
  }
}

.order-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing);
}

.order-form__field label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.order-form__field input[type="text"],
.order-form__field input[type="email"],
.order-form__field input[type="tel"],
.order-form__field textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-main);
  font-size: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.order-form__field input:focus,
.order-form__field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(137, 255, 0, 0.2);
}

.order-form__field--checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.order-form__field--checkbox input {
  margin-top: 0.25rem;
}

.order-form__field--checkbox label {
  margin-bottom: 0;
  font-size: 0.85rem;
}

.order-form__submit {
  padding: 1rem 2rem;
  background: var(--color-primary);
  color: var(--color-background);
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  overflow: hidden;
  position: relative;
  transition: color var(--transition);
}

.order-form__submit::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 0;
  background: var(--color-accent);
  transition: height var(--transition);
  z-index: 0;
}

.order-form__submit:hover {
  color: var(--color-primary);
}

.order-form__submit:hover::before {
  height: 100%;
}

.order-form__submit {
  position: relative;
  z-index: 1;
}

.section {
  padding: var(--spacing-xl) 0;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-xl);
  letter-spacing: -0.02em;
}

.section__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1100px;
  margin: 0 auto;
}

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

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

@media (max-width: 768px) {
  .section__grid--3,
  .section__grid--metrics {
    grid-template-columns: 1fr;
  }
}

.card {
  padding: var(--spacing-lg);
  transition: var(--transition);
}

.card--invis {
  background: transparent;
  border: 0.5px solid var(--color-primary);
  border-radius: var(--radius);
}

.card--invis:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px rgba(137, 255, 0, 0.3);
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.card p {
  font-size: 0.95rem;
  opacity: 0.9;
}

.card--spec {
  position: relative;
}

.card--spec::after {
  content: attr(data-molecular);
  position: absolute;
  bottom: var(--spacing);
  right: var(--spacing);
  font-size: 0.7rem;
  font-family: monospace;
  opacity: 0;
  color: var(--color-accent);
  transition: opacity var(--transition);
}

.card--spec:hover::after {
  opacity: 1;
}

.card__value {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.card__stars {
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.card--review cite {
  font-size: 0.85rem;
  opacity: 0.7;
  font-style: normal;
  display: block;
  margin-top: 0.5rem;
}

.card--spec-row dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 2rem;
}

.card--spec-row dt {
  font-weight: 600;
}

.card--spec-row dd {
  margin: 0;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
  align-items: start;
}

.contact__info {
  padding: var(--spacing);
}

.contact__info p {
  margin-bottom: 0.5rem;
}

.contact__link {
  display: inline-block;
  margin-top: var(--spacing);
  font-weight: 600;
}

.contact__map {
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/10;
  width: 100%;
  min-height: 250px;
}

.contact__map iframe {
  width: 100%;
  height: 100%;
  border: none;
}

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

.disclaimer {
  padding: var(--spacing-lg);
  background: var(--color-secondary);
  text-align: center;
  font-size: 0.9rem;
  opacity: 0.9;
}

.footer {
  margin-top: auto;
  padding: var(--spacing-lg);
  border-top: 0.5px solid var(--color-border);
  text-align: center;
  background: var(--color-background);
}

.footer__links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing);
  flex-wrap: wrap;
}

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

.footer__copy {
  font-size: 0.85rem;
  opacity: 0.8;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-primary);
  color: var(--color-secondary);
  padding: var(--spacing-lg);
  z-index: 1000;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.2);
}

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

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

.cookie-banner__title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.cookie-banner__text {
  margin-bottom: var(--spacing);
  font-size: 0.95rem;
  opacity: 0.9;
}

.cookie-banner__toggles {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing);
  margin-bottom: var(--spacing);
}

.cookie-banner__toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  cursor: pointer;
}

.cookie-banner__toggle input:disabled {
  cursor: not-allowed;
}

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

.cookie-banner__btn {
  padding: 0.75rem 1.5rem;
  border: 0.5px solid var(--color-secondary);
  background: transparent;
  color: var(--color-secondary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  cursor: pointer;
  border-radius: var(--radius);
  transition: var(--transition);
}

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

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

.cookie-banner__btn--accept:hover {
  opacity: 0.9;
}

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

button:not(.burger):hover,
a.btn-link:hover,
.order-form__submit:hover {
  animation: pulse 2s ease-in-out 1;
}

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

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

.legal-page h2 {
  font-size: 1.35rem;
  margin-top: var(--spacing-lg);
  margin-bottom: 0.5rem;
}

.legal-page p,
.legal-page li {
  margin-bottom: 0.75rem;
}

.legal-page ul {
  margin-left: 1.5rem;
}

.thank-you {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-xl);
}

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

.thank-you__inner p {
  margin-bottom: var(--spacing);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.btn-link {
  display: inline-block;
  padding: 1rem 2rem;
  background: var(--color-primary);
  color: var(--color-background) !important;
  border-radius: var(--radius);
  font-weight: 600;
  transition: background var(--transition);
}

.btn-link:hover {
  background: var(--color-accent);
  color: var(--color-primary) !important;
}