/* ============================================
   PetGearInsights.com — Main Stylesheet
   Clean, trustworthy, conversion-optimized
   ============================================ */

/* --- Google Fonts import --- */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Fraunces:ital,opsz,wght@0,9..144,600;0,9..144,700;0,9..144,800;1,9..144,600&display=swap');

/* --- CSS Variables --- */
:root {
  --color-bg: #FAFAF8;
  --color-surface: #FFFFFF;
  --color-text: #1A1A1A;
  --color-text-secondary: #5A5A5A;
  --color-text-muted: #8A8A8A;
  --color-primary: #2D6A4F;
  --color-primary-light: #40916C;
  --color-primary-bg: #D8F3DC;
  --color-accent: #E76F51;
  --color-accent-light: #F4A261;
  --color-border: #E8E8E4;
  --color-border-light: #F0F0EC;
  --color-pros: #2D6A4F;
  --color-pros-bg: #D8F3DC;
  --color-cons: #C1121F;
  --color-cons-bg: #FFE5E5;
  --color-star: #F4A261;
  --color-badge: #264653;

  --font-heading: 'Fraunces', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;

  --max-width: 1140px;
  --article-width: 780px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.10);
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text);
  background: 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); }
a:hover { color: var(--color-primary-light); }

/* --- Layout --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.article-container { max-width: var(--article-width); margin: 0 auto; padding: 0 24px; }

/* --- Header --- */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,0.95);
}

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

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo span { color: var(--color-primary); }

.site-nav { display: flex; gap: 28px; align-items: center; }
.site-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition);
  position: relative;
}
.site-nav a:hover { color: var(--color-primary); }
.site-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}
.site-nav a:hover::after { width: 100%; }

/* Mobile menu toggle */
.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.menu-toggle svg { width: 24px; height: 24px; }

/* --- Hero Section (Homepage) --- */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 16px;
}

.hero h1 em {
  font-style: italic;
  color: var(--color-primary);
}

.hero p {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
}

/* --- Category Pills --- */
.categories {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.category-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition);
  cursor: pointer;
}

.category-pill:hover,
.category-pill.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* --- Article Cards Grid --- */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
  margin-bottom: 60px;
}

.article-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--color-border);
}

.card-image {
  width: 100%;
  height: 210px;
  object-fit: cover;
  background: var(--color-border-light);
}

.card-body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; }

.card-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-badge);
  background: var(--color-primary-bg);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
  align-self: flex-start;
}

.card-badge.data-driven { background: #E0E7FF; color: #3730A3; }
.card-badge.intuition { background: #FEF3C7; color: #92400E; }

.card-body h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 8px;
  color: var(--color-text);
}

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

.card-excerpt {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* --- Article Page --- */
.article-header {
  padding: 48px 0 32px;
  text-align: center;
}

.article-header .breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.article-header .breadcrumb a { color: var(--color-text-muted); }
.article-header .breadcrumb a:hover { color: var(--color-primary); }

.article-header h1 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.25;
  max-width: 700px;
  margin: 0 auto 16px;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.article-meta time { font-weight: 500; }

/* --- Article Content --- */
.article-content {
  padding-bottom: 60px;
}

.article-content h2 {
  font-family: var(--font-heading);
  font-size: 1.55rem;
  font-weight: 700;
  margin: 40px 0 16px;
  color: var(--color-text);
  line-height: 1.3;
}

.article-content h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  margin: 28px 0 12px;
  color: var(--color-text);
}

.article-content p {
  margin-bottom: 18px;
  color: var(--color-text);
}

.article-content ul, .article-content ol {
  margin: 0 0 18px 24px;
}

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

/* --- Product Box (CTA) --- */
.product-box {
  background: var(--color-surface);
  border: 2px solid var(--color-primary-bg);
  border-radius: var(--radius);
  padding: 28px;
  margin: 32px 0;
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.product-box img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  background: #F8F8F6;
  flex-shrink: 0;
}

.product-box-content { flex: 1; }
.product-box-content h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.product-price {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.stars { color: var(--color-star); letter-spacing: 2px; }

.btn-affiliate {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--color-accent);
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-affiliate:hover {
  background: #D4603E;
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* --- Pros/Cons Table --- */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 28px 0;
}

.pros-list, .cons-list {
  padding: 22px;
  border-radius: var(--radius);
}

.pros-list {
  background: var(--color-pros-bg);
  border: 1px solid #B7E4C7;
}

.cons-list {
  background: var(--color-cons-bg);
  border: 1px solid #FFCCD5;
}

.pros-list h4, .cons-list h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.pros-list h4 { color: var(--color-pros); }
.cons-list h4 { color: var(--color-cons); }

.pros-list li, .cons-list li {
  font-size: 0.92rem;
  margin-bottom: 8px;
  list-style: none;
  padding-left: 22px;
  position: relative;
}

.pros-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-pros);
  font-weight: 700;
}

.cons-list li::before {
  content: '✗';
  position: absolute;
  left: 0;
  color: var(--color-cons);
  font-weight: 700;
}

/* --- Comparison Table --- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 0.92rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.comparison-table thead th {
  background: var(--color-badge);
  color: white;
  font-weight: 600;
  padding: 14px 18px;
  text-align: left;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.comparison-table tbody td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--color-border-light);
}

.comparison-table tbody tr:hover { background: #FAFAF8; }
.comparison-table tbody tr:last-child td { border-bottom: none; }

/* --- FAQ Section --- */
.faq-section {
  margin: 40px 0;
  padding: 32px;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.faq-section h2 {
  margin-top: 0;
  margin-bottom: 24px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border-light);
  padding: 16px 0;
}

.faq-item:last-child { border-bottom: none; }

.faq-question {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.faq-question::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: transform var(--transition);
}

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

.faq-answer {
  display: none;
  padding-top: 10px;
  font-size: 0.94rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

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

/* --- Verdict Box --- */
.verdict-box {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: white;
  padding: 32px;
  border-radius: var(--radius);
  margin: 32px 0;
}

.verdict-box h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: white;
}

.verdict-box p { color: rgba(255,255,255,0.92); margin-bottom: 16px; }

.verdict-score {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-heading);
}

.verdict-score span { font-size: 1rem; font-weight: 400; opacity: 0.8; }

/* --- Affiliate Disclosure --- */
.affiliate-disclosure {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  padding: 16px 20px;
  background: var(--color-border-light);
  border-radius: var(--radius-sm);
  margin: 24px 0;
  line-height: 1.6;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-badge);
  color: rgba(255,255,255,0.75);
  padding: 48px 0 32px;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: white;
  margin-bottom: 12px;
}

.footer-desc { font-size: 0.88rem; line-height: 1.6; }

.footer-links h4 {
  color: white;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { color: rgba(255,255,255,0.65); font-size: 0.88rem; }
.footer-links a:hover { color: white; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  font-size: 0.82rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* --- Related Articles --- */
.related-articles {
  margin: 48px 0;
}

.related-articles h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin-bottom: 24px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  body { font-size: 16px; }

  .site-nav { display: none; }
  .site-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-border);
    gap: 16px;
  }
  .menu-toggle { display: block; }

  .hero h1 { font-size: 2rem; }
  .hero { padding: 48px 0 36px; }

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

  .article-header h1 { font-size: 1.7rem; }

  .product-box { flex-direction: column; }
  .product-box img { width: 100%; height: 200px; }

  .pros-cons { grid-template-columns: 1fr; }

  .comparison-table { font-size: 0.82rem; }
  .comparison-table thead th,
  .comparison-table tbody td { padding: 10px 12px; }

  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.65rem; }
  .container, .article-container { padding: 0 16px; }
}