:root {
  --color-bg: #0d1412;
  --color-bg-alt: #151d1a;
  --color-surface: #1e2926;
  --color-primary: #5b9b8a;
  --color-primary-hover: #6fb39f;
  --color-primary-contrast: #ffffff;
  --color-accent: #d4a574;
  --color-accent-soft: rgba(212, 165, 116, 0.18);
  --color-text: #eef2f0;
  --color-text-muted: #8fa39b;
  --color-border: #2a3633;
  --color-error: #d96b63;
  --color-success: #5b9b8a;
  --font-heading: 'DM Sans', system-ui, sans-serif;
  --font-body: 'Source Sans 3', system-ui, sans-serif;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.4);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  margin-top: 0;
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: var(--space-lg); }
h3 { font-size: 1.25rem; margin-bottom: var(--space-md); }

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

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  min-height: 64px;
}

.brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
}

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

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

.nav-desktop a {
  color: var(--color-text-muted);
  font-weight: 500;
}

.nav-desktop a:hover {
  color: var(--color-text);
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: var(--space-sm);
  font-size: 1.5rem;
  line-height: 1;
}

.nav-mobile {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md);
  flex-direction: column;
  gap: var(--space-sm);
}

.nav-mobile.is-open {
  display: flex;
}

.nav-mobile a {
  display: block;
  padding: var(--space-md);
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.nav-mobile a:hover {
  background: var(--color-surface);
  color: var(--color-primary);
}

.hero {
  padding: var(--space-3xl) 0;
  background: linear-gradient(165deg, var(--color-bg-alt) 0%, var(--color-bg) 50%);
}

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

.hero-media {
  position: relative;
}

.hero-media img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero-badges {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-lg);
  align-items: center;
}

.rating-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-weight: 600;
}

.trust-badge {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.hero-content h1 {
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.hero-desc {
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  max-width: 52ch;
}

.hero-pricing {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

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

.price-old {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  text-decoration: line-through;
}

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

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-family: inherit;
  font-size: 1rem;
  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-primary);
  box-shadow: 0 0 0 3px rgba(45, 157, 120, 0.2);
}

.form-group input.error,
.form-group textarea.error {
  border-color: var(--color-error);
}

.form-group .error-msg {
  font-size: 0.8125rem;
  color: var(--color-error);
  margin-top: var(--space-xs);
}

.form-group .checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.form-group input[type="checkbox"] {
  width: auto;
  margin-top: 0.2em;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-xl);
  font-family: inherit;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-normal), transform var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
}

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

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

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

.btn-mailto {
  background: var(--color-accent);
  color: var(--color-bg);
}

.btn-mailto:hover {
  background: #e0b888;
  color: var(--color-bg);
}

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

.section-alt {
  background: var(--color-bg-alt);
}

#features .feature-card:nth-child(1) { border-left: 3px solid var(--color-primary); }
#features .feature-card:nth-child(2) { border-left: 3px solid var(--color-accent); }
#features .feature-card:nth-child(3) { border-left: 3px solid #7a9fb8; }

#benefits .benefit-item:nth-child(1) { border-left-color: var(--color-primary); }
#benefits .benefit-item:nth-child(2) { border-left-color: var(--color-accent); }
#benefits .benefit-item:nth-child(3) { border-left-color: #7a9fb8; }

#product .product-detail-content { border-left: 4px solid var(--color-primary); padding-left: var(--space-xl); }

#ingredients .ingredient-card:nth-child(odd) { background: var(--color-bg); }
#ingredients .ingredient-card:nth-child(even) { background: var(--color-surface); }

#reviews .testimonial-card { border-top: 3px solid var(--color-accent); }
#reviews .testimonial-card:nth-child(2) { border-top-color: var(--color-primary); }
#reviews .testimonial-card:nth-child(3) { border-top-color: #7a9fb8; }

.section-head {
  text-align: center;
  max-width: 40rem;
  margin: 0 auto var(--space-2xl);
}

.section-head h2 {
  margin-bottom: var(--space-md);
}

.section-head p {
  color: var(--color-text-muted);
  margin: 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-xl);
}

.feature-card {
  padding: var(--space-xl);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.feature-card h3 {
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--color-text-muted);
  margin: 0;
  font-size: 0.9375rem;
}

.benefits-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.benefit-item {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  padding: var(--space-lg);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-primary);
}

.benefit-item span {
  font-size: 1.5rem;
  color: var(--color-primary);
  flex-shrink: 0;
}

.benefit-item h3 {
  margin-bottom: var(--space-xs);
}

.benefit-item p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.product-detail {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-3xl);
  align-items: start;
}

.product-detail img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.product-detail-content h2 {
  margin-bottom: var(--space-md);
}

.product-detail-content p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.instructions-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.instructions-list li {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.instructions-list li:last-child {
  border-bottom: none;
}

.instructions-list .step-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.ingredients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
}

.ingredient-card {
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  text-align: center;
}

.ingredient-card strong {
  display: block;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.ingredient-card span {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-xl);
}

.testimonial-card {
  padding: var(--space-xl);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.testimonial-card p {
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: var(--space-lg);
}

.testimonial-card footer {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.125rem;
}

.testimonial-name {
  font-weight: 600;
  color: var(--color-text);
}

.testimonial-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  overflow: hidden;
  background: var(--color-bg-alt);
}

.faq-question {
  width: 100%;
  padding: var(--space-lg);
  text-align: left;
  background: none;
  border: none;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--color-surface);
}

.faq-question::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.faq-item.is-open .faq-question::after {
  content: '−';
}

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

.faq-item.is-open .faq-answer {
  display: block;
}

.cta-block {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, #3d7a6b 100%);
  border-radius: var(--radius-lg);
}

.cta-block h2 {
  color: #fff;
  margin-bottom: var(--space-md);
}

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

.disclaimer {
  padding: var(--space-xl) 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

.disclaimer-inner {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.disclaimer-inner p {
  margin: 0 0 var(--space-sm);
}

.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
}

.footer-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--color-text-muted);
}

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

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: center;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.3);
  display: none;
}

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

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

.cookie-banner h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.125rem;
}

.cookie-banner p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  font-size: 0.9375rem;
}

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

.cookie-settings {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  display: none;
}

.cookie-settings.is-open {
  display: block;
}

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

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

.cookie-category span {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.toggle {
  width: 48px;
  height: 26px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
  border: none;
}

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

.toggle.is-on {
  background: var(--color-primary);
}

.toggle.is-on::after {
  transform: translateX(22px);
}

.toggle[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

.legal-page {
  padding: var(--space-2xl) 0;
  min-height: 60vh;
}

.legal-page h1 {
  margin-bottom: var(--space-xl);
}

.legal-page h2 {
  font-size: 1.25rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.legal-page p,
.legal-page li {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.legal-page ul {
  padding-left: var(--space-xl);
}

.legal-home {
  margin-bottom: var(--space-xl);
}

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

.thank-you-page h1 {
  margin-bottom: var(--space-md);
}

.thank-you-page p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.thank-you-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

@media (max-width: 1000px) {
  .nav-desktop {
    display: none;
  }

  .nav-mobile-toggle {
    display: block;
  }

  .header-inner {
    position: relative;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content h1,
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-badges {
    justify-content: center;
  }

  .hero-pricing {
    justify-content: center;
  }

  .product-detail {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .cookie-banner-buttons {
    flex-direction: column;
  }

  .cookie-banner-buttons .btn {
    width: 100%;
  }
}