/* Blog-specific stylesheet. Mirrors the app's Cognitive Calm palette
   so content pages feel like part of the same brand even though they
   are pure static HTML (no React). */

:root {
  --bg-main:        #FBFBF9;
  --surface-card:   #FFFFFF;
  --text-primary:   #2C2A28;
  --text-secondary: #6B6661;
  --accent-cta:     #D67258;
  --accent-hover:   #BF6046;
  --border-subtle:  #EBEAE4;
  --radius:    12px;
  --radius-sm: 8px;
  --shadow-soft: 0 1px 2px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.04);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-cta); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

/* ── Header ───────────────────────────────────────── */
.blog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  background: var(--surface-card);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 10;
}
.blog-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 17px;
}
.blog-brand:hover { text-decoration: none; }
.blog-brand img { width: 28px; height: 28px; border-radius: 6px; }
.blog-nav { display: flex; gap: 22px; font-size: 15px; font-weight: 500; }
.blog-nav a { color: var(--text-secondary); }
.blog-nav a[aria-current="page"] { color: var(--text-primary); }
.blog-nav a:last-child {
  color: var(--accent-cta);
  font-weight: 600;
}

/* ── Article layout ───────────────────────────────── */
.blog-article {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}
.blog-index {
  max-width: 880px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

.blog-eyebrow {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cta);
  margin-bottom: 14px;
}

.blog-article h1, .blog-index h1 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.blog-lede {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.blog-meta {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

/* ── Article body ─────────────────────────────────── */
.blog-body {
  font-size: 17px;
  color: var(--text-primary);
}
.blog-body h2 {
  font-size: 26px;
  font-weight: 700;
  margin-top: 48px;
  margin-bottom: 14px;
  letter-spacing: -0.005em;
}
.blog-body h3 {
  font-size: 20px;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 10px;
}
.blog-body p { margin-bottom: 18px; }
.blog-body ul, .blog-body ol {
  margin: 0 0 22px 24px;
}
.blog-body li { margin-bottom: 8px; }
.blog-body strong { color: var(--text-primary); font-weight: 600; }
.blog-body em { font-style: italic; }
.blog-body blockquote {
  border-left: 3px solid var(--accent-cta);
  padding: 4px 0 4px 18px;
  margin: 24px 0;
  color: var(--text-secondary);
  font-style: italic;
}
.blog-body code {
  background: var(--border-subtle);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}
.blog-body a { text-decoration: underline; }

/* ── Share row ────────────────────────────────────── */
.blog-share {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--border-subtle);
}
.blog-share-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 14px;
}
.blog-share-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.blog-share-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  background: var(--surface-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.blog-share-btn:hover {
  border-color: var(--accent-cta);
  color: var(--accent-cta);
  text-decoration: none;
  background: var(--surface-card);
}
.blog-share-btn svg { display: block; }
.blog-share-btn.is-copied {
  border-color: var(--accent-cta);
  color: var(--accent-cta);
}

/* ── In-article CTA card ──────────────────────────── */
.blog-cta {
  margin-top: 64px;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-soft);
}
.blog-cta h2 {
  font-size: 22px;
  margin-bottom: 12px;
  letter-spacing: -0.005em;
}
.blog-cta p {
  color: var(--text-secondary);
  margin-bottom: 22px;
}
.blog-cta-btn {
  display: inline-block;
  background: var(--accent-cta);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
}
.blog-cta-btn:hover {
  background: var(--accent-hover);
  color: #fff;
  text-decoration: none;
}

.blog-back {
  margin-top: 40px;
  font-size: 15px;
}

/* ── Index list ───────────────────────────────────── */
.blog-list {
  list-style: none;
  display: grid;
  gap: 20px;
  margin-top: 40px;
}
.blog-list-item {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  transition: box-shadow 0.18s ease, transform 0.18s ease;
}
.blog-list-item:hover {
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}
.blog-list-link {
  display: block;
  padding: 28px;
  color: inherit;
}
.blog-list-link:hover { text-decoration: none; color: inherit; }
.blog-list-link h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.005em;
}
.blog-list-desc {
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-size: 16px;
}

/* ── Footer ───────────────────────────────────────── */
.blog-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 32px 24px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  background: var(--surface-card);
}
.blog-footer p + p { margin-top: 6px; }

/* ── Mobile ───────────────────────────────────────── */
@media (max-width: 640px) {
  .blog-header { padding: 14px 18px; }
  .blog-nav { gap: 14px; font-size: 14px; }
  .blog-nav a:not(:last-child) { display: none; }
  .blog-article { padding: 40px 18px 60px; }
  .blog-index { padding: 40px 18px 60px; }
  .blog-body { font-size: 16px; }
  .blog-body h2 { font-size: 22px; margin-top: 36px; }
  .blog-cta { padding: 24px; }
  .blog-list-link { padding: 22px; }
}