/* Rally Blog — Shared Styles */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg: #FFFFFF;
  --color-surface: #F6F7F9;
  --color-surface-2: #F0F1F3;
  --color-border: #E5E7EB;
  --color-text: #333333;
  --color-text-muted: #6B7280;
  --color-text-dim: #9CA3AF;
  --color-accent: #111111;
  --color-accent-light: #333333;
  --color-link: #2A5BD7;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  --max-width: 720px;
}

html { font-size: 1rem; scroll-behavior: smooth; }
body {
  font-family: 'Inter', var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-kerning: normal;
  -webkit-font-smoothing: antialiased;
}

/* Header / Nav */
.blog-header {
  border-bottom: 1px solid var(--color-border);
  background: #FFFFFF;
  position: sticky; top: 0; z-index: 100;
}
.blog-header-inner {
  max-width: 1080px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
}
.blog-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--color-text);
  font-weight: 700; font-size: 1.15rem;
}
.blog-logo img {
  height: 28px; width: auto;
}
.blog-nav { display: flex; gap: 20px; align-items: center; }
.blog-nav a {
  color: var(--color-text-muted); text-decoration: none;
  font-size: 0.9rem; font-weight: 500; transition: color .15s;
}
.blog-nav a:hover { color: var(--color-text); }
.blog-cta {
  background: var(--color-accent) !important; color: #fff !important;
  padding: 7px 16px; border-radius: 8px; font-weight: 600 !important;
  font-size: 0.85rem !important;
}
.blog-cta:hover { background: var(--color-accent-light) !important; }

/* Article Layout */
.blog-article { max-width: var(--max-width); margin: 0 auto; padding: 48px 24px 80px; }

/* Article Header */
.article-category {
  display: inline-block; font-size: 0.78rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--color-text-muted); margin-bottom: 12px;
}
.article-title {
  font-size: 2.5rem; font-weight: 800; line-height: 1.15;
  color: var(--color-text); margin-bottom: 16px; letter-spacing: -0.025em;
}
.article-subtitle {
  font-size: 1.15rem; color: var(--color-text-muted);
  line-height: 1.6; margin-bottom: 24px;
}
.article-meta {
  display: flex; gap: 16px; align-items: center;
  font-size: 0.85rem; color: var(--color-text-dim);
  padding-bottom: 32px; border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px; flex-wrap: wrap;
}
.article-meta time { font-family: var(--font-mono); font-size: 0.82rem; }

/* Content Styles */
.blog-content h2 {
  font-size: 1.5rem; font-weight: 700; color: var(--color-text);
  margin: 48px 0 16px; letter-spacing: -0.015em;
}
.blog-content h3 {
  font-size: 1.2rem; font-weight: 650; color: var(--color-text);
  margin: 36px 0 12px;
}
.blog-content p { margin-bottom: 20px; color: var(--color-text); }
.blog-content ul, .blog-content ol {
  margin-bottom: 20px; padding-left: 24px;
}
.blog-content li { margin-bottom: 8px; }
.blog-content strong { color: var(--color-text); font-weight: 650; }
.blog-content a {
  color: var(--color-link); text-decoration: underline;
  text-underline-offset: 3px;
}
.blog-content a:hover { color: var(--color-text); }
.blog-content blockquote {
  border-left: 3px solid var(--color-border);
  padding: 16px 20px; margin: 24px 0;
  background: var(--color-surface); border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text-muted); font-style: italic;
}
.blog-content code {
  font-family: var(--font-mono); font-size: 0.88em;
  background: var(--color-surface); padding: 2px 6px;
  border-radius: 4px;
}
.blog-content .metric-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 20px 24px; margin: 20px 0;
  border-left: 3px solid var(--color-text-muted);
}
.blog-content .metric-card h4 {
  font-size: 1rem; font-weight: 700; color: var(--color-text);
  margin-bottom: 6px; font-family: var(--font-mono);
}
.blog-content .metric-card p { margin-bottom: 0; font-size: 0.95rem; }
.blog-content table {
  width: 100%; border-collapse: collapse; margin: 24px 0;
  font-size: 0.92rem;
}
.blog-content th {
  text-align: left; padding: 10px 14px;
  background: var(--color-surface); color: var(--color-text);
  font-weight: 600; font-size: 0.82rem;
  text-transform: uppercase; letter-spacing: 0.05em;
  border-bottom: 2px solid var(--color-border);
}
.blog-content td {
  padding: 10px 14px; border-bottom: 1px solid var(--color-border);
}
.blog-content .callout {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 24px;
  margin: 28px 0;
}
.blog-content .callout-title {
  font-weight: 700; color: var(--color-text); margin-bottom: 8px; font-size: 1.05rem;
}
.blog-content figure { margin: 28px 0; }
.blog-content figcaption {
  font-size: 0.82rem; color: var(--color-text-dim);
  text-align: center; margin-top: 8px;
}

/* Blog Index */
.blog-index { max-width: 960px; margin: 0 auto; padding: 48px 24px 80px; }
.blog-index-title {
  font-size: 2.2rem; font-weight: 800; color: var(--color-text);
  margin-bottom: 8px; letter-spacing: -0.02em;
}
.blog-index-subtitle {
  font-size: 1.05rem; color: var(--color-text-muted);
  margin-bottom: 40px;
}
.blog-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.blog-card {
  background: #FFFFFF; border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 24px;
  text-decoration: none; color: var(--color-text);
  transition: border-color .2s, transform .2s, box-shadow .2s;
  display: flex; flex-direction: column;
}
.blog-card:hover {
  border-color: #9CA3AF; transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,.06);
}
.blog-card-category {
  font-size: 0.72rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--color-text-muted); margin-bottom: 10px;
}
.blog-card-title {
  font-size: 1.15rem; font-weight: 700; color: var(--color-text);
  margin-bottom: 10px; line-height: 1.35;
}
.blog-card-excerpt {
  font-size: 0.9rem; color: var(--color-text-muted);
  line-height: 1.55; flex: 1;
}
.blog-card-meta {
  margin-top: 16px; font-size: 0.8rem; color: var(--color-text-dim);
  font-family: var(--font-mono);
}
.section-label {
  font-size: 0.82rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--color-text-dim);
  margin: 40px 0 16px; padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}
.section-label:first-of-type { margin-top: 0; }

/* Footer */
.blog-footer {
  border-top: 1px solid var(--color-border);
  background: #F2F0ED;
  padding: 32px 24px; text-align: center;
  font-size: 0.85rem; color: var(--color-text-dim);
}
.blog-footer a { color: var(--color-text-muted); text-decoration: none; }
.blog-footer a:hover { color: var(--color-text); }
.blog-footer-social {
  display: flex; justify-content: center; gap: 16px; margin-top: 12px;
}
.blog-footer-social a {
  display: flex; align-items: center; color: var(--color-text-dim); transition: color 0.15s;
}
.blog-footer-social a:hover { color: var(--color-text); }

/* Article CTA */
.article-cta {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 32px; margin: 48px 0 0;
  text-align: center;
}
.article-cta h3 { color: var(--color-text); font-size: 1.3rem; margin-bottom: 8px; }
.article-cta p { color: var(--color-text-muted); margin-bottom: 20px; }
.article-cta a {
  display: inline-block; background: var(--color-accent);
  color: #fff; padding: 12px 28px; border-radius: 10px;
  font-weight: 700; text-decoration: none; font-size: 1rem;
}
.article-cta a:hover { background: var(--color-accent-light); }

/* Responsive */
@media (max-width: 640px) {
  .article-title { font-size: 1.75rem; }
  .blog-index-title { font-size: 1.6rem; }
  .blog-grid { grid-template-columns: 1fr; }
  .blog-nav { gap: 12px; }
  .blog-header-inner { padding: 12px 16px; }
  .blog-article { padding: 32px 16px 60px; }
  .blog-index { padding: 32px 16px 60px; }
}