:root {
  --color-primary: #1f1f20;
  --color-secondary: rgb(12, 234, 105);
  --color-background: #F9FAFB;
  --color-text-primary: #111827;
  --color-text-secondary: #6B7280;
  --color-accent: rgb(73, 202, 116);
  --color-white: #ffffff;
  --font-family-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

.header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  gap: var(--spacing-lg);
}

.brand {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-link {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

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

/* Mobile menu toggle (hamburger) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
  color: var(--color-primary);
}

.nav-toggle:hover {
  background-color: rgba(73, 202, 116, 0.15);
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: var(--radius-full);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.header.mobile-menu-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header.mobile-menu-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.header.mobile-menu-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu overlay and panel */
.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 98;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background: var(--color-white);
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
  z-index: 99;
  padding: var(--spacing-xl);
  padding-top: calc(var(--spacing-xl) + 52px);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  overflow-y: auto;
}

.mobile-menu-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-primary);
  font-size: 1.25rem;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.mobile-menu-close:hover {
  background-color: rgba(73, 202, 116, 0.15);
  color: var(--color-accent);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.mobile-nav-link {
  display: block;
  padding: var(--spacing-md) var(--spacing-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.mobile-nav-link:hover {
  background-color: rgba(73, 202, 116, 0.12);
  color: var(--color-accent);
}

@media (max-width: 991px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    display: none;
  }

  .mobile-menu-overlay,
  .mobile-menu {
    display: block;
  }

  .header.mobile-menu-open .mobile-menu-overlay {
    opacity: 1;
    pointer-events: auto;
  }

  .header.mobile-menu-open .mobile-menu {
    transform: translateX(0);
  }
}

@media (min-width: 992px) {
  .mobile-menu-overlay,
  .mobile-menu {
    display: none !important;
  }
}

.hero {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--color-background) 0%, rgba(73, 202, 116, 0.08) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero-image-wrap {
  position: relative;
}

.hero-image {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  height: auto;
}

.hero-badge {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  background: var(--color-secondary);
  color: var(--color-primary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.hero-rating {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.hero-content h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-tight);
}

.hero-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

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

.hero-price {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
}

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

.order-form {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid #E5E7EB;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(73, 202, 116, 0.2);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #DC2626;
}

.form-group .error-message {
  color: #DC2626;
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.form-checkbox input {
  width: auto;
  margin-top: 4px;
}

.form-checkbox label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  font-family: inherit;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

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

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

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(73, 202, 116, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-accent);
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.feature-card p {
  color: var(--color-text-secondary);
}

.benefits-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.benefit-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
  padding: var(--spacing-lg);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.benefit-item:hover {
  box-shadow: var(--shadow-md);
}

.benefit-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  color: var(--color-accent);
}

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

.content-block p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

.usage-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  counter-reset: step;
}

.usage-step {
  position: relative;
  padding: var(--spacing-xl);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  counter-increment: step;
}

.usage-step::before {
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
}

.usage-step h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.usage-step p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.ingredients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.ingredient-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.ingredient-item span:first-child {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
}

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

.faq-item {
  border-bottom: 1px solid #E5E7EB;
}

.faq-question {
  width: 100%;
  padding: var(--spacing-lg);
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  text-align: left;
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background-color: rgba(73, 202, 116, 0.08);
}

.faq-answer {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  color: var(--color-text-secondary);
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, #2d2d2e 100%);
  color: var(--color-white);
  text-align: center;
}

.cta-section .section-title {
  color: var(--color-white);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
}

.cta-section .btn-primary {
  background: var(--color-secondary);
  color: var(--color-primary);
}

.disclaimer {
  background: rgba(73, 202, 116, 0.15);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-accent);
}

.disclaimer p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
}

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

.footer-copyright {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-white);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
  padding: var(--spacing-xl);
  z-index: 1000;
  display: none;
}

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

.cookie-banner-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.cookie-banner p {
  color: var(--color-text-secondary);
}

.cookie-banner-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.cookie-settings {
  display: none;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid #E5E7EB;
}

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

.cookie-category {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid #E5E7EB;
}

.cookie-category:last-child {
  border-bottom: none;
}

.toggle {
  position: relative;
  width: 48px;
  height: 26px;
  background: #E5E7EB;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

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

.toggle::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  top: 2px;
  left: 2px;
  transition: transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.toggle.active::after {
  transform: translateX(22px);
}

.toggle.disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

.page-header {
  padding: var(--spacing-2xl) 0;
  background: var(--color-background);
}

.page-header h1 {
  font-size: var(--font-size-3xl);
  color: var(--color-primary);
}

.page-content {
  padding: var(--spacing-2xl) 0;
}

.page-content h2 {
  font-size: var(--font-size-2xl);
  margin: var(--spacing-xl) 0 var(--spacing-md);
  color: var(--color-primary);
}

.page-content p,
.page-content li {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

.page-content ul {
  padding-left: var(--spacing-xl);
}

.thank-you-content {
  text-align: center;
  padding: var(--spacing-3xl) 0;
}

.thank-you-content h1 {
  font-size: var(--font-size-4xl);
  color: var(--color-accent);
  margin-bottom: var(--spacing-lg);
}

.error-404 {
  text-align: center;
  padding: var(--spacing-3xl) 0;
}

.error-404 h1 {
  font-size: var(--font-size-4xl);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.error-404 p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

@media (max-width: 768px) {
  .brand{
    font-size: 1rem;
  }
  .benefits-list,.features-grid{
    display: flex !important;
    flex-direction: column;
  }
  .hero-image-wrap{
    display: flex;
    justify-content: center;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-content h1 {
    font-size: var(--font-size-3xl);
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}