/* ============================================================
   Blog Post Shared Styles — YT SEO Architect
   All blog posts link to this file instead of inline <style>.
   ============================================================ */

:root {
  --bg: #0f0f1a;
  --surface: #1a1a2e;
  --border: #2a2a4a;
  --accent: #f97316;
  --accent2: #fb923c;
  --text: #f8fafc;
  --text2: #94a3b8;
  --text3: #64748b;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  line-height: 1.8;
}

/* ── Header ─────────────────────────────────────────────── */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header a {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
}
.header .cta {
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}
.header .cta:hover { opacity: 0.9; }

/* ── Article ────────────────────────────────────────────── */
article {
  max-width: 750px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

h1 {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #fff, var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.meta {
  color: var(--text3);
  font-size: 0.85rem;
  margin-bottom: 2rem;
}

h2 {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
  color: var(--accent);
}

h3 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.75rem;
}

p {
  margin-bottom: 1.25rem;
  color: var(--text2);
}

ul, ol {
  margin: 1rem 0 1.5rem 1.5rem;
  color: var(--text2);
}

li { margin-bottom: 0.5rem; }

a[style*="color:var(--accent)"] { color: var(--accent); }
.link-accent { color: var(--accent); }

/* ── CTA Box ────────────────────────────────────────────── */
.cta-box {
  background: linear-gradient(135deg, rgba(249,115,22,0.1), rgba(251,146,60,0.05));
  border: 1px solid rgba(249,115,22,0.3);
  border-radius: 12px;
  padding: 2rem;
  margin: 2rem 0;
  text-align: center;
}
.cta-box h3 {
  margin-top: 0;
  color: var(--accent);
}
.cta-box a {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  margin-top: 1rem;
  transition: opacity 0.2s;
}
.cta-box a:hover { opacity: 0.9; }

/* ── Template Box (description templates) ───────────────── */
.template-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  margin: 1rem 0;
  white-space: pre-wrap;
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--text2);
  line-height: 1.6;
}

/* ── Comparison Table ───────────────────────────────────── */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  color: var(--text2);
}
th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
th {
  color: var(--accent);
  font-weight: 700;
}
.check { color: #22c55e; }

/* ── Footer ─────────────────────────────────────────────── */
.footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  color: var(--text3);
  font-size: 0.85rem;
}
.footer a {
  color: var(--accent);
  text-decoration: none;
}

/* ── Table of Contents ───────────────────────────────────── */
.toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  margin: 1.5rem 0 2.5rem;
}
.toc h2 {
  font-size: 1rem;
  color: var(--text);
  margin: 0 0 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.toc ol {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text2);
}
.toc li {
  margin-bottom: 0.4rem;
}
.toc a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s;
}
.toc a:hover { opacity: 0.8; }

/* ── TL;DR / Key Takeaways Box ──────────────────────────── */
.tldr {
  background: linear-gradient(135deg, rgba(59,130,246,0.08), rgba(59,130,246,0.02));
  border: 1px solid rgba(59,130,246,0.25);
  border-left: 4px solid #3b82f6;
  border-radius: 0 12px 12px 0;
  padding: 1.5rem 2rem;
  margin: 1.5rem 0 2rem;
}
.tldr h2 {
  font-size: 1rem;
  color: #60a5fa;
  margin: 0 0 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.tldr ul {
  margin: 0;
  padding-left: 1.25rem;
}
.tldr li {
  color: var(--text2);
  margin-bottom: 0.35rem;
}

/* ── FAQ Section ────────────────────────────────────────── */
.faq {
  margin: 2.5rem 0;
}
.faq h2 {
  margin-bottom: 1.25rem;
}
.faq details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 0.75rem;
  transition: border-color 0.2s;
}
.faq details[open] {
  border-color: var(--accent);
}
.faq summary {
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.faq summary::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--accent);
  transition: transform 0.2s;
}
.faq details[open] summary::after {
  content: '−';
}
.faq summary::-webkit-details-marker { display: none; }
.faq .faq-answer {
  padding: 0 1.25rem 1.25rem;
  color: var(--text2);
  line-height: 1.7;
}

/* ── Last Updated Badge ─────────────────────────────────── */
.last-updated {
  display: inline-block;
  background: rgba(34,197,94,0.1);
  color: #4ade80;
  border: 1px solid rgba(34,197,94,0.2);
  border-radius: 6px;
  padding: 0.25rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  margin-left: 0.5rem;
  vertical-align: middle;
}

/* ── Trending Now ──────────────────────────────────────── */
.trending-now {
  background: linear-gradient(135deg, rgba(239,68,68,0.08), rgba(249,115,22,0.04));
  border: 1px solid rgba(239,68,68,0.25);
  border-left: 4px solid #ef4444;
  border-radius: 0 12px 12px 0;
  padding: 1.5rem 2rem;
  margin: 2rem 0;
}
.trending-now h2 {
  font-size: 1rem;
  color: #f87171;
  margin: 0 0 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.trending-now ul {
  margin: 0;
  padding-left: 1.25rem;
}
.trending-now li {
  color: var(--text2);
  margin-bottom: 0.5rem;
}
.trending-now a {
  color: var(--accent);
}

/* ── Key Takeaways ──────────────────────────────────────── */
.key-takeaways {
  background: linear-gradient(135deg, rgba(34,197,94,0.08), rgba(34,197,94,0.02));
  border: 1px solid rgba(34,197,94,0.25);
  border-left: 4px solid #22c55e;
  border-radius: 0 12px 12px 0;
  padding: 1.5rem 2rem;
  margin: 2rem 0;
}
.key-takeaways h2 {
  font-size: 1rem;
  color: #4ade80;
  margin: 0 0 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.key-takeaways ul {
  margin: 0;
  padding-left: 1.25rem;
}
.key-takeaways li {
  color: var(--text2);
  margin-bottom: 0.35rem;
}

/* ── Breadcrumb ────────────────────────────────────────── */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--text3);
  margin-bottom: 1.5rem;
}
.breadcrumb a {
  color: var(--accent);
  text-decoration: none;
}
.breadcrumb a:hover { text-decoration: underline; }

/* ── Author Box (E-E-A-T) ───────────────────────────────── */
.author-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 2.5rem;
  display: flex;
  gap: 1.25rem;
  align-items: center;
}
.author-box .avatar {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.author-box .author-info h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
  color: var(--text);
}
.author-box .author-info p {
  font-size: 0.85rem;
  color: var(--text2);
  margin-bottom: 0;
  line-height: 1.5;
}

/* ── Stat Box ───────────────────────────────────────────── */
.stat-box {
  background: rgba(249,115,22,0.05);
  border-left: 4px solid var(--accent);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 8px 8px 0;
  font-size: 0.95rem;
  color: var(--text2);
}
.stat-box strong { color: var(--accent2); }

/* ── Step Guide ─────────────────────────────────────────── */
.step-guide {
  counter-reset: step;
  margin: 1.5rem 0;
}
.step-guide .step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  position: relative;
  padding-left: 4.5rem;
}
.step-guide .step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 1.25rem;
  top: 1.5rem;
  width: 2.25rem;
  height: 2.25rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
}
.step-guide .step h4 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--text);
}
.step-guide .step p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* ── Featured Image Wrapper ─────────────────────────────── */
.featured-image-wrapper img,
.secondary-image-wrapper img {
  width: 100%;
  height: auto;
  max-width: 800px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

/* ── Info-graphic Container ────────────────────────────── */
.infographic-container {
  text-align: center;
  margin: 2rem 0;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 600px) {
  h1 { font-size: 1.6rem; }
  article { padding: 1.5rem 1rem; }
  .header { padding: 0.75rem 1rem; }
}

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