/* Opal Screens Blog Styles */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111118;
  --bg-card: #16161e;
  --text-primary: #f0f0f5;
  --text-secondary: #8888a0;
  --text-muted: #55556a;
  --accent: #00c2ff;
  --accent-dark: #0088cc;
  --border: rgba(255,255,255,0.06);
}

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

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

/* Navbar */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 2rem;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-img { height: 28px; }

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover { color: var(--text-primary); }

.nav-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark)) !important;
  color: #fff !important;
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  font-weight: 600 !important;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
}

/* Blog Hero */
.blog-hero {
  padding: 8rem 2rem 3rem;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.blog-hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.blog-hero h1 span {
  background: linear-gradient(135deg, #fff 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.blog-hero p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 550px;
  margin: 0 auto;
}

/* Article Grid */
.blog-grid {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: transform 0.3s, border-color 0.3s;
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 194, 255, 0.15);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.article-category {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  background: rgba(0, 194, 255, 0.08);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
}

.article-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.article-card h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.article-card h2 a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.3s;
}

.article-card h2 a:hover { color: var(--accent); }

.article-excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.read-more {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: opacity 0.3s;
}

.read-more:hover { opacity: 0.8; }

/* Article Page */
.article-header {
  padding: 8rem 2rem 2rem;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.article-header .article-meta {
  justify-content: center;
  margin-bottom: 1.5rem;
}

.article-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.25;
}

.read-time {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.article-body {
  max-width: 700px;
  margin: 0 auto;
  padding: 3rem 2rem 4rem;
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: var(--text-primary);
}

.article-body p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.article-body strong {
  color: var(--text-primary);
  font-weight: 600;
}

.article-body ul, .article-body ol {
  color: var(--text-secondary);
  margin: 1rem 0 1.25rem 1.5rem;
  line-height: 1.8;
}

.article-body li { margin-bottom: 0.5rem; }

.article-body blockquote {
  border-left: 3px solid var(--accent);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  background: rgba(0, 194, 255, 0.03);
  border-radius: 0 8px 8px 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* CTA Section */
.article-cta {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  text-align: center;
  margin: 3rem 0;
}

.article-cta h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.article-cta p {
  color: var(--text-secondary) !important;
  margin-bottom: 1.5rem !important;
}

.cta-btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s;
  box-shadow: 0 4px 20px rgba(0, 194, 255, 0.2);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(0, 194, 255, 0.3);
}

/* Related Articles */
.related-articles {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 2rem 5rem;
}

.related-articles h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.75rem;
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  text-decoration: none;
  transition: transform 0.3s, border-color 0.3s;
  display: block;
}

.related-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 194, 255, 0.15);
}

.related-card .article-category {
  margin-bottom: 0.5rem;
  display: inline-block;
}

.related-card h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

/* Footer */
.blog-footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.blog-footer a {
  color: var(--accent);
  text-decoration: none;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-toggle { display: flex; }
  .blog-hero h1 { font-size: 2rem; }
  .article-header h1 { font-size: 1.8rem; }
  .related-grid { grid-template-columns: 1fr; }
  .article-body { padding: 2rem 1.25rem 3rem; }
}