/* CSS Variables for Design System */
:root {
  --color-primary: #22c55e;
  --color-primary-light: #dcfce7;
  --color-primary-dark: #16a34a;
  --color-secondary: #64748b;
  --color-accent: #f59e0b;

  --color-background: #ffffff;
  --color-surface: #f8fafc;
  --color-surface-alt: #f1f5f9;

  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-text-muted: #94a3b8;

  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;

  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  --font-sans: system-ui, -apple-system, sans-serif;
  --font-serif: Georgia, serif;
  --font-mono: "Courier New", monospace;

  --radius: 0.5rem;
  --radius-sm: 0.25rem;
  --radius-lg: 0.75rem;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  text-wrap: balance;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: 1rem;
  text-wrap: pretty;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

ul,
ol {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.25rem;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

/* Header */
.header {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  color: var(--color-text);
  font-weight: 500;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.nav a:hover,
.nav a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  text-decoration: none;
}

@media (max-width: 767px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }

  .nav {
    gap: 1rem;
  }
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-text);
  color: white;
  padding: 1rem;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
}

.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cookie-actions {
  display: flex;
  gap: 1rem;
  flex-shrink: 0;
}

.btn-accept {
  background-color: var(--color-primary);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 500;
  transition: background-color 0.2s ease;
}

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

.btn-manage {
  color: white;
  text-decoration: underline;
  padding: 0.5rem 1rem;
}

@media (max-width: 767px) {
  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
}

/* Safety Notice */
.safety-notice {
  background-color: var(--color-warning);
  color: white;
  padding: 0.5rem 0;
  text-align: center;
  font-size: 0.875rem;
}

.safety-notice a {
  color: white;
  text-decoration: underline;
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-outline {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: white;
  text-decoration: none;
}

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

.btn-secondary:hover {
  background-color: var(--color-text);
  border-color: var(--color-text);
  color: white;
  text-decoration: none;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: white;
  text-decoration: none;
}

/* Main Content */
.main-content {
  min-height: 60vh;
  padding: 2rem 0;
}

.page-header {
  text-align: center;
  margin-bottom: 3rem;
}

.page-header h1 {
  margin-bottom: 1rem;
}

.page-header p {
  font-size: 1.125rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* Hero Section */
.hero {
  padding: 4rem 0;
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-background) 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.hero p {
  font-size: 1.25rem;
  color: var(--color-text-light);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.wellness-icon svg {
  width: 120px;
  height: 120px;
}

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

  .hero-actions {
    justify-content: flex-start;
  }

  .hero p {
    margin-left: 0;
    margin-right: 0;
  }
}

@media (max-width: 767px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero-actions {
    flex-direction: column;
  }
}

/* Grid Layouts */
.category-grid,
.steps-grid,
.topics-grid,
.ingredients-grid,
.benefits-grid,
.reviews-grid,
.approach-grid,
.standards-grid,
.guidelines-grid,
.tips-grid,
.faq-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

.category-grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.steps-grid,
.topics-grid,
.ingredients-grid,
.benefits-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.reviews-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.approach-grid,
.standards-grid,
.guidelines-grid,
.tips-grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.faq-grid {
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

/* Cards */
.category-card,
.step,
.topic-card,
.ingredient-card,
.benefit,
.review-card,
.approach-item,
.standard-item,
.guideline-card,
.tip-card,
.faq-item,
.product-card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.category-card:hover,
.product-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.category-icon,
.product-icon {
  margin-bottom: 1.5rem;
}

.category-icon svg,
.product-icon svg {
  width: 60px;
  height: 60px;
}

.category-card h3,
.product-card h3 {
  margin-bottom: 1rem;
  color: var(--color-text);
}

.category-card p,
.product-card p {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

/* Product Features */
.product-features {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.feature-tag {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
}

/* Steps */
.step-number {
  width: 3rem;
  height: 3rem;
  background-color: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  margin: 0 auto 1rem;
}

/* Reviews */
.stars {
  color: var(--color-accent);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.reviewer {
  font-style: italic;
  color: var(--color-text-muted);
  margin-top: 1rem;
}

/* Benefits */
.benefit-icon {
  width: 3rem;
  height: 3rem;
  background-color: var(--color-success);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  margin: 0 auto 1rem;
}

/* Topic and Ingredient Links */
.topic-link,
.ingredient-link {
  color: var(--color-primary);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.topic-link:hover,
.ingredient-link:hover {
  border-bottom-color: var(--color-primary);
  text-decoration: none;
}

/* Forms */
.contact-form-section {
  background-color: var(--color-surface);
  padding: 3rem 0;
  margin: 3rem 0;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color 0.2s ease;
  background-color: var(--color-background);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

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

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-top: 0.25rem;
  flex-shrink: 0;
}

.checkbox-group label {
  margin-bottom: 0;
  font-weight: 400;
}

@media (max-width: 767px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Contact Layout */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.contact-info h2 {
  margin-bottom: 2rem;
}

.contact-details {
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-icon {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  background-color: var(--color-primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-details-text h3 {
  margin-bottom: 0.5rem;
  font-size: 1.125rem;
}

.contact-details-text p {
  margin-bottom: 0;
  color: var(--color-text-light);
}

.business-hours {
  background-color: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
}

.business-hours h3 {
  margin-bottom: 1rem;
}

@media (max-width: 767px) {
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* Thank You Page */
.thank-you-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.thank-you-icon {
  margin-bottom: 2rem;
}

.thank-you-message {
  font-size: 1.25rem;
  color: var(--color-text-light);
  margin-bottom: 3rem;
}

.submission-details {
  margin-bottom: 3rem;
}

.submission-summary {
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius-lg);
  text-align: left;
}

.details-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.detail-item {
  padding: 0.75rem;
  background-color: var(--color-background);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.message-item {
  grid-column: 1 / -1;
}

.next-steps {
  margin-bottom: 3rem;
}

.response-time {
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius-lg);
  margin-bottom: 3rem;
}

.continue-browsing {
  margin-bottom: 2rem;
}

/* CTA Sections */
.cta-section {
  text-align: center;
  padding: 3rem 0;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  margin: 3rem 0;
}

.cta-section h2 {
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--color-text-light);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 767px) {
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}

/* Section Spacing */
.categories,
.how-it-works,
.topics,
.ingredients,
.benefits,
.reviews,
.educational-content,
.quality-standards,
.usage-guidelines,
.skincare-tips,
.faq-section {
  padding: 3rem 0;
}

.categories h2,
.how-it-works h2,
.topics h2,
.ingredients h2,
.benefits h2,
.reviews h2,
.educational-content h2,
.quality-standards h2,
.usage-guidelines h2,
.skincare-tips h2,
.faq-section h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.section-cta {
  text-align: center;
  margin-top: 2rem;
}

/* Category Pages */
.category-intro {
  margin-bottom: 3rem;
}

.intro-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.intro-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.highlight {
  background-color: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  text-align: left;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

/* Category Large Cards */
.categories-overview {
  margin-bottom: 3rem;
}

.category-large-card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}

.category-content {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3rem;
  align-items: center;
}

.category-icon-large svg {
  width: 80px;
  height: 80px;
}

.category-info h2 {
  margin-bottom: 1rem;
  text-align: left;
}

.category-info p {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.category-features {
  list-style: none;
  margin-left: 0;
  margin-bottom: 2rem;
}

.category-features li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border-light);
}

.category-features li:before {
  content: "✓";
  color: var(--color-primary);
  font-weight: bold;
  margin-right: 0.5rem;
}

@media (max-width: 767px) {
  .category-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .category-info h2 {
    text-align: center;
  }
}

/* Education Cards */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.education-card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
}

.education-card h3 {
  margin-bottom: 1rem;
  color: var(--color-primary);
}

/* About Page */
.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.content-section {
  margin-bottom: 3rem;
}

.values-list {
  list-style: none;
  margin-left: 0;
}

.values-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border-light);
}

.disclaimer-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2rem 0;
}

/* Legal Pages */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.last-updated {
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: 2rem;
}

.legal-section {
  margin-bottom: 3rem;
}

.legal-section h2 {
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.5rem;
}

.legal-section h3 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.contact-info {
  background-color: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  margin: 1rem 0;
}

.legal-footer {
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius-lg);
  text-align: center;
  margin-top: 3rem;
}

.disclaimer-notice {
  background-color: var(--color-warning);
  color: white;
  padding: 2rem;
  border-radius: var(--radius-lg);
  margin-bottom: 3rem;
  text-align: center;
}

.disclaimer-notice h2 {
  color: white;
  margin-bottom: 1rem;
}

/* Footer */
.footer {
  background-color: var(--color-text);
  color: white;
  padding: 3rem 0 1rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
  color: white;
  margin-bottom: 1rem;
}

.footer-section p {
  color: #cbd5e1;
  margin-bottom: 0.5rem;
}

.footer-section ul {
  list-style: none;
  margin-left: 0;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: #cbd5e1;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-section ul li a:hover,
.footer-section ul li a.active {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid #475569;
  padding-top: 2rem;
  text-align: center;
  color: #94a3b8;
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .container {
    padding: 0 1.5rem;
  }
}

@media (max-width: 767px) {
  html {
    font-size: 14px;
  }

  .main-content {
    padding: 1.5rem 0;
  }

  .page-header {
    margin-bottom: 2rem;
  }

  .categories,
  .how-it-works,
  .topics,
  .ingredients,
  .benefits,
  .reviews,
  .educational-content,
  .quality-standards,
  .usage-guidelines,
  .skincare-tips,
  .faq-section {
    padding: 2rem 0;
  }

  .category-card,
  .step,
  .topic-card,
  .ingredient-card,
  .benefit,
  .review-card,
  .approach-item,
  .standard-item,
  .guideline-card,
  .tip-card,
  .faq-item,
  .product-card {
    padding: 1.5rem;
  }

  .category-large-card {
    padding: 2rem;
  }

  .contact-form-section {
    padding: 2rem 0;
  }

  .cta-section {
    padding: 2rem;
    margin: 2rem 0;
  }
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .cookie-banner,
  .safety-notice,
  .cta-section {
    display: none;
  }

  .main-content {
    padding: 0;
  }

  body {
    font-size: 12pt;
    line-height: 1.4;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    page-break-after: avoid;
  }

  .legal-section {
    page-break-inside: avoid;
  }
}

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

/* Focus Styles */
button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --color-border: #000000;
    --color-text-light: var(--color-text);
  }
}