/* ============================================
   CLEARSTEM Skincare - Complete Stylesheet
   ============================================ */

/* ----- CSS Custom Properties ----- */
:root {
  --color-primary: #c4897a;
  --color-primary-dark: #a86b5c;
  --color-primary-light: #d9a99e;
  --color-secondary: #2d4a3e;
  --color-secondary-dark: #1e3329;
  --color-secondary-light: #4a6b5c;
  --color-accent: #f5e6d3;
  --color-accent-light: #faf3ec;
  --color-text: #2c2c2c;
  --color-text-light: #6b6b6b;
  --color-text-lighter: #999;
  --color-white: #ffffff;
  --color-bg: #fdfaf7;
  --color-border: #e8dcd4;
  --color-success: #4a7c59;
  --color-warning: #e8a84c;
  --color-error: #c4554a;
  --color-star: #e8a84c;
  --color-overlay: rgba(0,0,0,0.5);
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
  --max-width-narrow: 900px;
  --header-height: 72px;
  --announcement-height: 40px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --transition: 0.3s ease;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --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-size-5xl: 3.5rem;
}

/* ----- Reset & Base ----- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

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

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

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

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p { margin-bottom: 1rem; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--font-size-sm);
  line-height: 1;
  padding: 14px 28px;
  border: 2px solid transparent;
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition);
  text-transform: none;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* Primary CTA - Rose/Primary */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(196, 137, 122, 0.35);
}

/* Secondary CTA - Dark/Green */
.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-white);
  border-color: var(--color-secondary);
}

.btn-secondary:hover {
  background: var(--color-secondary-dark);
  border-color: var(--color-secondary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 74, 62, 0.3);
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* White Outline (for dark backgrounds) */
.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-outline-light:hover {
  background: var(--color-white);
  color: var(--color-text);
  transform: translateY(-2px);
}

/* Small CTA */
.btn-sm {
  padding: 10px 20px;
  font-size: var(--font-size-xs);
}

/* Large CTA */
.btn-lg {
  padding: 18px 36px;
  font-size: var(--font-size-base);
}

/* ----- Announcement Bar ----- */
.announcement-bar {
  background: var(--color-secondary);
  color: var(--color-white);
  text-align: center;
  padding: 10px 16px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.03em;
  height: var(--announcement-height);
  display: flex;
  align-items: center;
  justify-content: center;
}

.announcement-bar p {
  margin: 0;
}

/* ----- Header / Navigation ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text);
}

.logo svg {
  width: 32px;
  height: 32px;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-secondary);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 40px;
  height: 40px;
  position: relative;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: all var(--transition);
  border-radius: 1px;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ----- Hero Section ----- */
.hero {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 540px;
}

.hero-badge {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-white);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: var(--font-size-5xl);
  margin-bottom: 20px;
  color: var(--color-secondary);
}

.hero p {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

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

.hero-image img,
.hero-image .img-placeholder {
  width: 100%;
  max-width: 480px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* ----- Logo Cloud / Trust Bar ----- */
.trust-bar {
  padding: 48px 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.trust-bar .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.trust-item svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.trust-stars {
  display: flex;
  gap: 2px;
}

.trust-stars svg {
  width: 16px;
  height: 16px;
  fill: var(--color-star);
}

/* ----- Section Common Styles ----- */
.section {
  padding: 80px 0;
}

.section-heading {
  text-align: center;
  margin-bottom: 48px;
}

.section-heading h2 {
  color: var(--color-secondary);
  margin-bottom: 12px;
}

.section-heading p {
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 12px;
}

/* ----- Best Sellers ----- */
.best-sellers {
  background: var(--color-white);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 32px;
}

.product-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
  border: 1px solid var(--color-border);
}

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

.product-card-image {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-accent);
}

.product-card-image img,
.product-card-image .img-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.product-card:hover .product-card-image img {
  transform: scale(1.05);
}

.product-card-body {
  padding: 20px;
}

.product-card-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.product-card-rating {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}

.product-card-rating .stars {
  display: flex;
  gap: 2px;
}

.product-card-rating .stars svg {
  width: 14px;
  height: 14px;
  fill: var(--color-star);
}

.product-card-rating span {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.product-card-price {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 8px;
}

.product-card-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.5;
}

.product-card .btn {
  width: 100%;
}

.product-badge {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  position: absolute;
  top: 12px;
  left: 12px;
}

.product-card-image {
  position: relative;
}

/* ----- Why ClearStem / Benefits ----- */
.benefits {
  background: var(--color-secondary);
  color: var(--color-white);
}

.benefits .section-heading h2 {
  color: var(--color-white);
}

.benefits .section-heading p {
  color: rgba(255,255,255,0.8);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 32px;
}

.benefit-card {
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all var(--transition);
}

.benefit-card:hover {
  background: rgba(255,255,255,0.14);
  transform: translateY(-4px);
}

.benefit-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.benefit-icon svg {
  width: 28px;
  height: 28px;
  fill: var(--color-white);
}

.benefit-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: 10px;
  color: var(--color-white);
}

.benefit-card p {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.8);
  margin: 0;
  line-height: 1.6;
}

/* ----- Amazon Section ----- */
.amazon-section {
  background: var(--color-accent-light);
}

.amazon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.amazon-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

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

.amazon-card-image {
  width: 160px;
  height: 160px;
  margin: 0 auto 16px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-accent);
}

.amazon-card-image img,
.amazon-card-image .img-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.amazon-card h4 {
  font-size: var(--font-size-base);
  margin-bottom: 8px;
}

.amazon-card .stars {
  display: flex;
  justify-content: center;
  gap: 2px;
  margin-bottom: 8px;
}

.amazon-card .stars svg {
  width: 14px;
  height: 14px;
  fill: var(--color-star);
}

.amazon-card .price {
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 12px;
}

.amazon-badge {
  display: inline-block;
  background: #ff9900;
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
}

/* ----- Blog Section ----- */
.blog-section {
  background: var(--color-white);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 32px;
}

.blog-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

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

.blog-card-image {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-accent);
}

.blog-card-image img,
.blog-card-image .img-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.blog-card:hover .blog-card-image img {
  transform: scale(1.05);
}

.blog-card-body {
  padding: 24px;
}

.blog-card-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.blog-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: 10px;
}

.blog-card h3 a {
  color: var(--color-text);
}

.blog-card h3 a:hover {
  color: var(--color-primary);
}

.blog-card-excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.6;
}

.blog-card-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-lighter);
}

/* ----- CTA Banner ----- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: 80px 0;
  text-align: center;
  color: var(--color-white);
}

.cta-banner h2 {
  color: var(--color-white);
  font-size: var(--font-size-4xl);
  margin-bottom: 16px;
}

.cta-banner p {
  font-size: var(--font-size-lg);
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ----- FAQ Section ----- */
.faq {
  background: var(--color-bg);
}

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

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--color-white);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  transition: background var(--transition);
}

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

.faq-question:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.faq-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform var(--transition);
}

.faq-icon svg {
  width: 100%;
  height: 100%;
  fill: var(--color-primary);
}

.faq-item[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 24px;
}

.faq-item[aria-expanded="true"] .faq-answer {
  max-height: 500px;
  padding: 0 24px 20px;
}

.faq-answer p {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  line-height: 1.7;
  margin: 0;
}

/* ----- Footer ----- */
.site-footer {
  background: var(--color-secondary-dark);
  color: rgba(255,255,255,0.8);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: var(--font-size-sm);
  line-height: 1.7;
  margin-top: 16px;
  color: rgba(255,255,255,0.7);
}

.footer-brand .logo-text {
  color: var(--color-white);
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: var(--font-size-sm);
  transition: color var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.5);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: rgba(255,255,255,0.5);
  font-size: var(--font-size-xs);
}

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

/* ----- Page Header ----- */
.page-header {
  background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
  padding: 60px 0;
  text-align: center;
}

.page-header h1 {
  color: var(--color-secondary);
  margin-bottom: 8px;
}

.page-header p {
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: 16px;
  justify-content: center;
}

.breadcrumb a {
  color: var(--color-primary);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb .separator {
  color: var(--color-text-lighter);
}

/* ----- Article Layout ----- */
.article-wrapper {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 24px;
}

.article-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  align-self: start;
}

.article-toc {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.article-toc h4 {
  font-size: var(--font-size-base);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.article-toc ol {
  list-style: none;
  counter-reset: toc-counter;
}

.article-toc li {
  counter-increment: toc-counter;
  margin-bottom: 8px;
}

.article-toc li::before {
  content: counter(toc-counter) ". ";
  color: var(--color-primary);
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.article-toc a {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  transition: color var(--transition);
}

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

.article-floating-cta {
  margin-top: 20px;
  padding: 20px;
  background: var(--color-accent-light);
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid var(--color-border);
}

.article-floating-cta p {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-secondary);
}

.article-floating-cta .btn {
  width: 100%;
}

.article-content {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 48px;
  min-width: 0;
}

.article-header {
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

.article-header h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: 12px;
  color: var(--color-secondary);
}

.article-meta {
  display: flex;
  gap: 16px;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  flex-wrap: wrap;
}

.article-body h2 {
  font-size: var(--font-size-2xl);
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--color-secondary);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.article-body h3 {
  font-size: var(--font-size-xl);
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--color-text);
}

.article-body p {
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}

.article-body ul,
.article-body ol {
  margin-bottom: 16px;
  padding-left: 24px;
  color: var(--color-text-light);
  line-height: 1.8;
}

.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }

.article-body li { margin-bottom: 6px; }

.article-body strong {
  color: var(--color-text);
}

.article-body a {
  color: var(--color-primary);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-body a:hover {
  color: var(--color-primary-dark);
}

.article-body figure {
  margin: 32px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.article-body figure img,
.article-body .img-placeholder {
  width: 100%;
  border-radius: var(--radius-md);
}

.article-body figcaption {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-lighter);
  margin-top: 8px;
  font-style: italic;
}

.article-body blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--color-accent-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--color-text-light);
}

.article-cta-inline {
  background: var(--color-accent-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 24px 0;
  text-align: center;
}

.article-cta-inline p {
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-secondary);
}

/* Mobile Bottom CTA */
.mobile-bottom-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-white);
  padding: 12px 16px;
  border-top: 1px solid var(--color-border);
  z-index: 100;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
}

.mobile-bottom-cta .btn {
  width: 100%;
}

/* ----- Blog List Page ----- */
.blog-list-header {
  margin-bottom: 32px;
}

.blog-list-header p {
  max-width: 600px;
}

.blog-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 32px;
}

/* ----- 404 Page ----- */
.page-404 {
  text-align: center;
  padding: 120px 24px;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-404 h1 {
  font-size: 8rem;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
}

.page-404 h2 {
  margin-bottom: 16px;
  color: var(--color-secondary);
}

.page-404 p {
  color: var(--color-text-light);
  margin-bottom: 32px;
  max-width: 480px;
}

/* ----- Privacy Policy ----- */
.privacy-content {
  padding: 48px 0 80px;
}

.privacy-content h2 {
  font-size: var(--font-size-2xl);
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--color-secondary);
}

.privacy-content h3 {
  font-size: var(--font-size-xl);
  margin-top: 28px;
  margin-bottom: 12px;
}

.privacy-content p,
.privacy-content li {
  color: var(--color-text-light);
  line-height: 1.8;
}

.privacy-content ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 16px;
}

.privacy-content li { margin-bottom: 6px; }

/* ----- Image Placeholder (for dev) ----- */
.img-placeholder {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-lighter);
  font-size: var(--font-size-sm);
  min-height: 200px;
}

/* ----- Lazy Load / Fade In ----- */
.lazy-img {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.lazy-img.loaded {
  opacity: 1;
}

/* ----- Scroll Animation ----- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ----- Toast Notification ----- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--color-secondary);
  color: var(--color-white);
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  box-shadow: var(--shadow-md);
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s;
  max-width: 360px;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(100px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100px); }
}

/* ----- Responsive ----- */
@media (max-width: 1024px) {
  .hero .container {
    gap: 40px;
  }

  .hero h1 { font-size: var(--font-size-4xl); }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .article-wrapper {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    display: none;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.375rem;
  }

  .menu-toggle { display: block; }

  .header-actions .btn {
    display: none;
  }

  .header-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 20px 24px;
    box-shadow: var(--shadow-md);
  }

  .header-nav.open { display: block; }

  .header-nav .btn {
    width: 100%;
    margin-top: 12px;
    display: inline-flex;
  }

  .hero { padding: 48px 0; }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 32px;
  }

  .hero-content {
    max-width: 100%;
  }

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

  .hero-image .img-placeholder {
    max-width: 320px;
    margin: 0 auto;
  }

  .trust-bar .container {
    gap: 24px;
  }

  .section { padding: 56px 0; }
  .section-heading { margin-bottom: 32px; }

  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
  }

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

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

  .cta-banner { padding: 56px 0; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .article-content {
    padding: 24px;
  }

  .blog-list-grid {
    grid-template-columns: 1fr;
  }

  .mobile-bottom-cta {
    display: block;
  }

  .article-body {
    padding-bottom: 80px;
  }

  .toast-container {
    left: 16px;
    right: 16px;
    bottom: 80px;
  }

  .toast {
    max-width: 100%;
  }

  .amazon-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .hero h1 { font-size: var(--font-size-3xl); }
  .hero p { font-size: var(--font-size-base); }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }

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

  .blog-list-grid { grid-template-columns: 1fr; }
}

/* ----- Focus & Accessibility ----- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-secondary);
  color: var(--color-white);
  padding: 12px 24px;
  z-index: 10000;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}