@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700&family=Syne:wght@400;500;600;700&display=swap');

:root {
  --color-primary: #F2F2F7;
  --color-secondary: #1C1C1E;
  --color-accent: #D4FF00;
  --color-background: #FFFFFF;
  --font-main: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Syne', 'DM Sans', sans-serif;
  --radius: 8px;
  --shadow: 0 2px 20px rgba(28, 28, 30, 0.08);
  --spacing: clamp(1rem, 4vw, 2rem);
  --max-width: 1200px;
  --header-height: 72px;
  --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-secondary);
  line-height: 1.6;
  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;
  transition: color var(--transition);
}

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

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 0.25pt solid rgba(28, 28, 30, 0.08);
  z-index: 1000;
  transition: var(--transition);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

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

.nav-desktop {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
}

.nav-desktop a {
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition);
}

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

.burger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 0.25pt solid rgba(28, 28, 30, 0.2);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 10px;
  transition: var(--transition);
}

.burger-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-secondary);
  transition: var(--transition);
  margin: 0 auto;
}

.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 {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(28, 28, 30, 0.4);
  z-index: 999;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.burger-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: min(100%, 320px);
  max-width: 1023px;
  height: 100vh;
  background: var(--color-background);
  z-index: 1001;
  transform: translateX(100%);
  transition: transform var(--transition);
  box-shadow: -4px 0 24px rgba(28, 28, 30, 0.12);
  overflow-y: auto;
}

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

.burger-menu-inner {
  padding: calc(var(--header-height) + 2rem) 2rem 2rem;
}

.burger-menu a {
  display: block;
  padding: 1rem 0;
  font-weight: 600;
  font-size: 1.1rem;
  border-bottom: 0.25pt solid rgba(28, 28, 30, 0.08);
  transition: color var(--transition), transform 0.2s ease;
}

.burger-menu a:hover {
  color: var(--color-accent);
  transform: translateX(4px);
}

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

  .burger-btn {
    display: flex;
  }
}

@media (min-width: 1024px) {
  .burger-overlay,
  .burger-menu {
    display: none !important;
  }
}

.section {
  padding: clamp(3rem, 8vw, 6rem) var(--spacing);
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: var(--color-secondary);
}

.section-subtitle {
  font-size: 1.1rem;
  color: rgba(28, 28, 30, 0.7);
  max-width: 600px;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-background) 50%);
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  right: -10%;
  top: 20%;
  width: 50%;
  height: 60%;
  background: url('../image/product.webp') center/contain no-repeat;
  opacity: 0.15;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

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

.hero-content {
  max-width: 520px;
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  background: rgba(212, 255, 0, 0.2);
  color: var(--color-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 4px;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.hero-rating-stars {
  color: var(--color-accent);
  font-size: 1rem;
}

.hero-rating-text {
  font-size: 0.9rem;
  color: rgba(28, 28, 30, 0.7);
}

.hero-description {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
  color: rgba(28, 28, 30, 0.85);
}

.hero-price-block {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-price-current {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-secondary);
}

.hero-price-old {
  font-size: 1.1rem;
  color: rgba(28, 28, 30, 0.5);
  text-decoration: line-through;
}

.hero-form-wrapper {
  background: rgba(242, 242, 247, 0.6);
  border: 0.25pt solid rgba(28, 28, 30, 0.06);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
}

.form-group label .required {
  color: #c0392b;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 0.25pt solid rgba(28, 28, 30, 0.15);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  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(212, 255, 0, 0.2);
}

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

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

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

.form-checkbox label {
  font-size: 0.85rem;
  color: rgba(28, 28, 30, 0.8);
}

.btn-cta {
  display: inline-block;
  width: 100%;
  padding: 1rem 2rem;
  background: var(--color-secondary);
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}

.btn-cta:hover {
  background: var(--color-accent);
  color: var(--color-secondary);
  transform: translateY(-1px);
}

.hero-product-img {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-product-img img {
  max-width: 320px;
  width: 100%;
  height: auto;
}

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

.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.9) 0%, rgba(242,242,247,0.5) 100%);
  border: 0.25pt solid rgba(28, 28, 30, 0.06);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(28, 28, 30, 0.12);
  border-color: rgba(212, 255, 0, 0.3);
}

.card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.95rem;
  color: rgba(28, 28, 30, 0.8);
}

.resource-logic .grid-cards {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.composition-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.composition-item {
  text-align: center;
  padding: 1.5rem 1rem;
  background: rgba(242, 242, 247, 0.5);
  border: 0.25pt solid rgba(28, 28, 30, 0.06);
  border-radius: var(--radius);
  transition: var(--transition);
}

.composition-item:hover {
  background: rgba(212, 255, 0, 0.08);
}

.protocol-steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.protocol-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 1.5rem;
  background: rgba(242, 242, 247, 0.4);
  border-radius: 12px;
  border: 0.25pt solid rgba(28, 28, 30, 0.06);
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  color: var(--color-secondary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  flex-shrink: 0;
}

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

.voice-card {
  padding: 1.5rem;
  background: rgba(242, 242, 247, 0.5);
  border: 0.25pt solid rgba(28, 28, 30, 0.06);
  border-radius: 12px;
  transition: var(--transition);
}

.voice-card:hover {
  border-color: rgba(212, 255, 0, 0.3);
}

.voice-card p {
  font-style: italic;
  margin-bottom: 1rem;
  color: rgba(28, 28, 30, 0.9);
}

.voice-card cite {
  font-size: 0.9rem;
  color: rgba(28, 28, 30, 0.7);
  font-style: normal;
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.insight-card {
  padding: 1.5rem;
  border: 0.25pt solid rgba(28, 28, 30, 0.08);
  border-radius: 12px;
  background: var(--color-background);
  transition: var(--transition);
}

.insight-card:hover {
  box-shadow: var(--shadow);
}

.contact-section {
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-background) 100%);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

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

.contact-info h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.contact-info p {
  margin-bottom: 0.5rem;
  color: rgba(28, 28, 30, 0.85);
}

.contact-email {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-secondary);
  color: var(--color-accent);
  font-weight: 600;
  border-radius: var(--radius);
  transition: var(--transition);
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
}

.contact-email:hover {
  background: var(--color-accent);
  color: var(--color-secondary);
}

.legal-disclaimer {
  padding: 1.5rem;
  background: rgba(242, 242, 247, 0.8);
  border: 0.25pt solid rgba(28, 28, 30, 0.08);
  border-radius: var(--radius);
  margin-top: 3rem;
  font-size: 0.9rem;
  color: rgba(28, 28, 30, 0.8);
}

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

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  text-align: center;
}

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

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

.footer-links a:hover {
  color: var(--color-accent);
  opacity: 1;
}

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

.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--color-accent);
  z-index: 1002;
  transform-origin: left;
  transition: width 0.1s ease;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-secondary);
  color: var(--color-primary);
  padding: 1.5rem var(--spacing);
  z-index: 1003;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.2);
  transform: translateY(100%);
  transition: transform var(--transition);
}

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

.cookie-banner-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cookie-banner p {
  font-size: 0.95rem;
  line-height: 1.5;
}

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

.cookie-banner-btns button {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.cookie-banner-btns .accept-all {
  background: var(--color-accent);
  color: var(--color-secondary);
}

.cookie-banner-btns .reject {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid rgba(242, 242, 247, 0.5);
}

.cookie-banner-btns .settings {
  background: rgba(242, 242, 247, 0.15);
  color: var(--color-primary);
}

.cookie-settings {
  display: none;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(242, 242, 247, 0.2);
}

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

.cookie-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
}

.cookie-toggle label {
  font-size: 0.9rem;
}

.toggle-switch {
  width: 44px;
  height: 24px;
  background: rgba(242, 242, 247, 0.3);
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  transition: var(--transition);
}

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

.toggle-switch::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: var(--transition);
}

.toggle-switch.active::after {
  left: 23px;
}

.save-preferences {
  margin-top: 0.75rem;
  padding: 0.5rem 1rem;
  background: var(--color-accent);
  color: var(--color-secondary);
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.save-preferences:hover {
  opacity: 0.9;
}

.faq-item {
  border: 0.25pt solid rgba(28, 28, 30, 0.08);
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1rem 1.25rem;
  background: rgba(242, 242, 247, 0.5);
  border: none;
  text-align: left;
  font-family: inherit;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-question:hover {
  background: rgba(212, 255, 0, 0.1);
}

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

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

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

.faq-answer-inner {
  padding: 1rem 1.25rem;
  font-size: 0.95rem;
  color: rgba(28, 28, 30, 0.85);
}

.scroll-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.page-header {
  padding: calc(var(--header-height) + 4rem) var(--spacing) 2rem;
  text-align: center;
  background: linear-gradient(180deg, var(--color-primary) 0%, transparent 100%);
}

.page-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.page-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem var(--spacing) 4rem;
}

.page-content h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin: 2rem 0 0.75rem;
}

.page-content p {
  margin-bottom: 1rem;
  line-height: 1.7;
}

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

.thank-you-page h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
}

.thank-you-page p {
  margin-bottom: 1.5rem;
  color: rgba(28, 28, 30, 0.8);
}

.thank-you-page a {
  color: var(--color-accent);
  font-weight: 600;
}

.thank-you-page a:hover {
  text-decoration: underline;
}

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