/* StickerPrinterGuide.com — shared styles */
/* Mobile-first, fast-loading, SEO-friendly */

:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-accent: #f59e0b;
  --color-accent-dark: #d97706;
  --color-success: #10b981;
  --color-danger: #ef4444;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-card: #ffffff;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --max-width: 820px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

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

html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.25rem; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 0;
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; }
.site-logo { font-size: 1.125rem; font-weight: 700; color: var(--color-text); text-decoration: none; }
.site-logo span { color: var(--color-primary); }
.site-nav { display: flex; gap: 1.25rem; }
.site-nav a { color: var(--color-text-muted); text-decoration: none; font-size: 0.9rem; font-weight: 500; }
.site-nav a:hover { color: var(--color-primary); }

/* Hero / Article Header */
.article-header { padding: 2.5rem 0 1.5rem; border-bottom: 1px solid var(--color-border); }
.article-header h1 { font-size: 1.75rem; line-height: 1.3; font-weight: 800; margin-bottom: 0.75rem; }
.article-meta { display: flex; flex-wrap: wrap; gap: 1rem; color: var(--color-text-muted); font-size: 0.85rem; }
.article-meta time { font-weight: 600; }

/* Article Body */
.article-body { padding: 2rem 0 3rem; }
.article-body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text);
}
.article-body h2:first-of-type { border-top: none; padding-top: 0; }
.article-body h3 { font-size: 1.15rem; font-weight: 700; margin: 1.5rem 0 0.75rem; }
.article-body p { margin-bottom: 1rem; }
.article-body ul, .article-body ol { margin: 0.75rem 0 1.25rem 1.5rem; }
.article-body li { margin-bottom: 0.4rem; }
.article-body a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 2px; }
.article-body a:hover { color: var(--color-primary-dark); }

/* Intro Answer Box */
.intro-answer {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}
.intro-answer p { margin-bottom: 0.5rem; }
.intro-answer p:last-child { margin-bottom: 0; }
.intro-answer strong { color: var(--color-primary-dark); }

/* Product Card */
.product-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow);
  position: relative;
}
.product-card.top-pick {
  border-color: var(--color-accent);
  border-width: 2px;
  box-shadow: var(--shadow-md);
}
.product-card .badge {
  position: absolute;
  top: -0.75rem;
  left: 1.5rem;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.product-card .badge.best-value { background: var(--color-success); }
.product-card .badge.budget { background: var(--color-primary); }
.product-card .badge.runner-up { background: var(--color-text-muted); }
.product-card .badge.premium { background: #7c3aed; }

.product-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
  color: var(--color-text);
}
.product-card .subtitle {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.product-card .rating {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  margin-bottom: 1rem;
}
.product-card .rating .score { font-size: 1.1rem; }

/* Spec Grid */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0;
}
.spec-item {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 0.6rem 0.75rem;
}
.spec-item .spec-label { font-size: 0.75rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.03em; }
.spec-item .spec-value { font-size: 0.95rem; font-weight: 600; color: var(--color-text); }

/* Pros / Cons */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1rem 0;
}
.pros h4 { color: var(--color-success); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 0.5rem; }
.cons h4 { color: var(--color-danger); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 0.5rem; }
.pros ul, .cons ul { list-style: none; margin: 0; padding: 0; }
.pros li, .cons li { font-size: 0.9rem; padding: 0.25rem 0; padding-left: 1.25rem; position: relative; }
.pros li::before { content: "+"; position: absolute; left: 0; color: var(--color-success); font-weight: 700; }
.cons li::before { content: "−"; position: absolute; left: 0; color: var(--color-danger); font-weight: 700; }

/* CTA Button */
.btn-check-price {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius);
  margin-top: 0.75rem;
  transition: background 0.15s;
}
.btn-check-price:hover { background: var(--color-primary-dark); color: #fff; }

/* Comparison Table */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}
.comparison-table th {
  background: var(--color-bg-alt);
  text-align: left;
  padding: 0.6rem 0.75rem;
  font-weight: 600;
  border-bottom: 2px solid var(--color-border-strong);
  white-space: nowrap;
}
.comparison-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
.comparison-table tr:hover td { background: var(--color-bg-alt); }

/* Cost Breakdown */
.cost-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}
.cost-table th {
  background: var(--color-primary);
  color: #fff;
  text-align: left;
  padding: 0.6rem 0.75rem;
  font-weight: 600;
}
.cost-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
}
.cost-table tr:nth-child(even) td { background: var(--color-bg-alt); }
.cost-table .total-row td { font-weight: 700; border-top: 2px solid var(--color-primary); background: var(--color-bg-alt); }

/* Budget Cards */
.budget-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}
.budget-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  background: var(--color-bg-card);
}
.budget-card h4 { font-size: 1rem; margin-bottom: 0.5rem; }
.budget-card .price-range { font-size: 1.25rem; font-weight: 700; color: var(--color-primary); margin-bottom: 0.75rem; }
.budget-card ul { margin: 0; padding: 0; list-style: none; }
.budget-card li { font-size: 0.85rem; padding: 0.2rem 0; }

/* FAQ */
.faq-section { margin: 1.5rem 0; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
}
.faq-question {
  width: 100%;
  background: var(--color-bg-alt);
  border: none;
  padding: 1rem 1.25rem;
  text-align: left;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text);
}
.faq-question:hover { background: #f1f5f9; }
.faq-question::after { content: "+"; font-size: 1.25rem; font-weight: 300; color: var(--color-text-muted); transition: transform 0.2s; }
.faq-item.open .faq-question::after { content: "−"; }
.faq-answer {
  padding: 0 1.25rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer { max-height: 500px; padding: 0.75rem 1.25rem 1rem; }
.faq-answer p { font-size: 0.9rem; color: var(--color-text-muted); line-height: 1.6; }

/* Callout Box */
.callout {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}
.callout.warning { background: #fffbeb; border-color: #fde68a; }
.callout strong { color: var(--color-primary-dark); }

/* Testing Section */
.testing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}
.testing-item {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 1rem;
  border: 1px solid var(--color-border);
}
.testing-item .icon { font-size: 1.5rem; margin-bottom: 0.5rem; }
.testing-item h4 { font-size: 0.9rem; margin-bottom: 0.25rem; }
.testing-item p { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.5; }

/* TOC */
.toc {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}
.toc h3 { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-muted); margin-bottom: 0.75rem; }
.toc ol { margin: 0; padding-left: 1.25rem; }
.toc li { margin-bottom: 0.35rem; font-size: 0.9rem; }
.toc a { color: var(--color-primary); text-decoration: none; }
.toc a:hover { text-decoration: underline; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  text-align: center;
}
.site-footer a { color: var(--color-text-muted); }
.site-footer .affiliate-disclosure {
  max-width: var(--max-width);
  margin: 0 auto 1rem;
  padding: 0.75rem 1rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  font-size: 0.75rem;
  line-height: 1.5;
}

/* Responsive */
@media (max-width: 640px) {
  .article-header h1 { font-size: 1.4rem; }
  .article-body h2 { font-size: 1.2rem; }
  .pros-cons { grid-template-columns: 1fr; }
  .budget-cards { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: repeat(2, 1fr); }
  .comparison-table { font-size: 0.8rem; }
  .comparison-table th, .comparison-table td { padding: 0.4rem 0.5rem; }
  .site-nav { gap: 0.75rem; }
  .testing-grid { grid-template-columns: 1fr; }
}

/* Utility */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.text-muted { color: var(--color-text-muted); }
.mt-1 { margin-top: 1rem; }
.mb-1 { margin-bottom: 1rem; }