:root {
  --color-primary: #0B1222;
  --color-secondary: #E5E9F0;
  --color-accent: #BFFF00;
  --color-background: #F8FAFF;
  --font-main: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius: 2px;
  --shadow: 0 1px 3px rgba(11, 18, 34, 0.04);
  --spacing: 1.5rem;
  --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);
  background: var(--color-background);
  color: var(--color-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

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

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

a:hover {
  opacity: 0.85;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(248, 250, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 0.5px solid var(--color-secondary);
  transition: border-color var(--transition);
}

.header:hover {
  border-bottom-color: rgba(191, 255, 0, 0.3);
}

.header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing) 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.header__nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
}

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

.header__nav-link:hover::after {
  width: 100%;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: 0.5px solid var(--color-secondary);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}

.burger:hover {
  border-color: var(--color-accent);
  background: rgba(191, 255, 0, 0.05);
}

.burger__line {
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition), opacity var(--transition);
}

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

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

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

.burger-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(11, 18, 34, 0.4);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.burger-overlay.active {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

.burger-menu {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 1023px;
  height: 100vh;
  z-index: 1001;
  background: var(--color-background);
  border-left: 0.5px solid var(--color-secondary);
  padding: 5rem 2rem 2rem;
  transform: translateX(100%);
  transition: transform var(--transition);
  overflow-y: auto;
}

.burger-menu.active {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transform: translateX(0);
}

.burger-menu__link {
  font-size: 1.1rem;
  font-weight: 500;
  padding: 0.75rem 0;
  border-bottom: 0.5px solid var(--color-secondary);
  transition: color var(--transition), padding-left var(--transition);
}

.burger-menu__link:hover,
.burger-menu__link:focus {
  color: var(--color-accent);
  padding-left: 0.5rem;
}

.main {
  flex: 1;
  padding-top: 80px;
}

.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  scroll-margin-top: 80px;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--spacing);
  text-align: center;
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section__title.visible {
  opacity: 1;
  transform: translateX(0);
}

.section__subtitle {
  font-size: 1rem;
  color: var(--color-primary);
  opacity: 0.8;
  text-align: center;
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

.hero {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  padding: 3rem 1.5rem 4rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/product.webp') center/cover no-repeat;
  opacity: 0.06;
  pointer-events: none;
}

.hero__inner {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

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

.hero__content {
  text-align: center;
}

@media (min-width: 768px) {
  .hero__content {
    text-align: left;
  }
}

.hero__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  background: rgba(191, 255, 0, 0.1);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius);
  border: 0.5px solid rgba(191, 255, 0, 0.3);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero__rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  justify-content: center;
}

@media (min-width: 768px) {
  .hero__rating {
    justify-content: flex-start;
  }
}

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

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

.hero__description {
  font-size: 1rem;
  margin-bottom: 1.5rem;
  opacity: 0.9;
  max-width: 480px;
}

.hero__media {
  margin: 0 auto;
  max-width: 320px;
  position: relative;
}

.hero__product {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 0.5px solid var(--color-secondary);
}

.hero__pricing {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

@media (min-width: 768px) {
  .hero__pricing {
    justify-content: flex-start;
  }
}

.hero__price {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-accent);
}

.hero__old-price {
  font-size: 1rem;
  text-decoration: line-through;
  opacity: 0.6;
}

.order-form {
  background: rgba(255, 255, 255, 0.8);
  border: 0.5px solid var(--color-secondary);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 400px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .order-form {
    margin: 0;
  }
}

.order-form__group {
  margin-bottom: 1rem;
}

.order-form__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.order-form__label .required {
  color: #c0392b;
}

.order-form__input {
  width: 100%;
  padding: 0.6rem 0.85rem;
  border: 0.5px solid var(--color-secondary);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  background: var(--color-background);
  transition: border-color var(--transition);
}

.order-form__input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.order-form__input::placeholder {
  opacity: 0.6;
}

.order-form__textarea {
  min-height: 80px;
  resize: vertical;
}

.order-form__gdpr {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.order-form__gdpr .form-error {
  flex-basis: 100%;
}

.order-form__gdpr input {
  margin-top: 0.25rem;
  flex-shrink: 0;
  accent-color: var(--color-accent);
}

.order-form__gdpr label {
  font-size: 0.8rem;
  opacity: 0.9;
}

.order-form__gdpr a {
  text-decoration: underline;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  border: none;
  min-height: 48px;
}

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

.btn--primary:hover {
  background: #a8e600;
  transform: translateY(-1px);
}

.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border: 0.5px solid var(--color-secondary);
}

.btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: rgba(255, 255, 255, 0.6);
  border: 0.5px solid var(--color-secondary);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  opacity: 0;
  transform: translateY(20px);
}

.card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition);
}

.card:hover {
  border-color: rgba(191, 255, 0, 0.4);
}

.card__icon {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.card__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

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

.ingredient-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.ingredient-card {
  background: rgba(255, 255, 255, 0.6);
  border: 0.5px solid var(--color-secondary);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition);
  opacity: 0;
  transform: translateX(-20px);
}

.ingredient-card.visible {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition);
}

.ingredient-card:nth-child(even) {
  transform: translateX(20px);
}

.ingredient-card:nth-child(even).visible {
  transform: translateX(0);
}

.ingredient-card:hover {
  border-color: rgba(191, 255, 0, 0.4);
}

.ingredient-card__name {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.ingredient-card__role {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.ingredient-card__desc {
  font-size: 0.9rem;
  opacity: 0.9;
}

.standards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.standards-item {
  text-align: center;
  padding: 2rem 1.5rem;
  background: rgba(255, 255, 255, 0.6);
  border: 0.5px solid var(--color-secondary);
  border-radius: var(--radius);
  transition: border-color var(--transition);
  opacity: 0;
  transform: scale(0.95);
}

.standards-item.visible {
  opacity: 1;
  transform: scale(1);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition);
}

.standards-item:hover {
  border-color: rgba(191, 255, 0, 0.4);
}

.standards-item__num {
  font-family: var(--font-mono);
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.standards-item__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.standards-item__text {
  font-size: 0.9rem;
  opacity: 0.9;
}

.protocol-steps {
  max-width: 640px;
  margin: 2rem auto 0;
}

.protocol-step {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 0.5px solid var(--color-secondary);
  opacity: 0;
  transform: translateY(15px);
}

.protocol-step:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.protocol-step.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.protocol-step__num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 600;
  background: rgba(191, 255, 0, 0.15);
  border: 0.5px solid rgba(191, 255, 0, 0.3);
  border-radius: var(--radius);
  color: var(--color-accent);
}

.protocol-step__content h3 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

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

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.review-card {
  background: rgba(255, 255, 255, 0.6);
  border: 0.5px solid var(--color-secondary);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition);
  opacity: 0;
  transform: translateY(15px);
}

.review-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition);
}

.review-card:hover {
  border-color: rgba(191, 255, 0, 0.4);
}

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

.review-card__text {
  font-size: 0.95rem;
  font-style: italic;
  margin-bottom: 0.75rem;
  opacity: 0.95;
}

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

.faq-list {
  max-width: 700px;
  margin: 2rem auto 0;
}

.faq-item {
  border: 0.5px solid var(--color-secondary);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item:hover {
  border-color: rgba(191, 255, 0, 0.3);
}

.faq-item.active {
  border-color: rgba(191, 255, 0, 0.4);
}

.faq-item__header {
  width: 100%;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.5);
  border: none;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: background var(--transition);
}

.faq-item__header:hover {
  background: rgba(191, 255, 0, 0.05);
}

.faq-item__icon {
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--color-accent);
}

.faq-item.active .faq-item__icon {
  transform: rotate(180deg);
}

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

.faq-item__content-inner {
  padding: 0 1.25rem 1rem;
  font-size: 0.95rem;
  opacity: 0.9;
}

.contact-box {
  text-align: center;
  max-width: 500px;
  margin: 0 auto;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.6);
  border: 0.5px solid var(--color-secondary);
  border-radius: var(--radius);
}

.contact-box__title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.contact-box__address {
  font-size: 1rem;
  margin-bottom: 1rem;
  opacity: 0.9;
}

.contact-box__email {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-accent);
  color: var(--color-primary);
  font-weight: 600;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}

.contact-box__email:hover {
  background: #a8e600;
  transform: translateY(-2px);
}

.disclaimer {
  max-width: 800px;
  margin: 2rem auto 0;
  padding: 1.5rem;
  background: rgba(229, 233, 240, 0.5);
  border: 0.5px solid var(--color-secondary);
  border-radius: var(--radius);
  font-size: 0.9rem;
  text-align: center;
  opacity: 0.9;
}

.footer {
  margin-top: auto;
  padding: 2rem 1.5rem;
  background: var(--color-primary);
  color: var(--color-secondary);
  text-align: center;
}

.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
  margin-bottom: 1rem;
}

.footer__link {
  font-size: 0.9rem;
  opacity: 0.9;
}

.footer__link:hover {
  color: var(--color-accent);
  opacity: 1;
}

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

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  background: var(--color-primary);
  color: var(--color-secondary);
  padding: 1.5rem 1.5rem 2rem;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
  transform: translateY(100%);
  transition: transform var(--transition);
}

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

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

.cookie-banner__title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.cookie-banner__text {
  font-size: 0.9rem;
  opacity: 0.9;
  margin-bottom: 1rem;
}

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

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

.cookie-banner__btn--accept {
  background: var(--color-accent);
  color: var(--color-primary);
  font-weight: 600;
}

.cookie-settings {
  display: none;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 0.5px solid rgba(255, 255, 255, 0.2);
}

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

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

.cookie-settings__label {
  font-size: 0.9rem;
}

.cookie-toggle {
  width: 44px;
  height: 24px;
  border-radius: 12px;
  background: var(--color-secondary);
  position: relative;
  cursor: pointer;
  transition: background var(--transition);
}

.cookie-toggle.active {
  background: var(--color-accent);
}

.cookie-toggle::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: white;
  top: 2px;
  left: 2px;
  transition: transform var(--transition);
}

.cookie-toggle.active::after {
  transform: translateX(20px);
}

.form-error {
  font-size: 0.8rem;
  color: #c0392b;
  margin-top: 0.25rem;
}

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

  .burger {
    display: flex;
  }
}

.page-hero {
  padding: 4rem 1.5rem 3rem;
  text-align: center;
  background: linear-gradient(180deg, rgba(191, 255, 0, 0.03) 0%, transparent 100%);
}

.page-hero__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.page-hero__subtitle {
  font-size: 1rem;
  opacity: 0.8;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.legal-content h2 {
  font-size: 1.35rem;
  margin: 2rem 0 0.75rem;
}

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

.legal-content p,
.legal-content li {
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.legal-content ul {
  padding-left: 1.5rem;
}

.thank-you__content {
  text-align: center;
  padding: 3rem 1.5rem;
}

.thank-you__title {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.thank-you__text {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

.thank-you__btn {
  margin-top: 1rem;
}