/* ═══════════════════════════════════════
   ZenHome AI — Blog Shared Styles
   ═══════════════════════════════════════ */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #e0e7ff;
  --gold: #f59e0b;
  --gold-light: #fef3c7;
  --text: #1f2937;
  --text-muted: #6b7280;
  --bg: #fff;
  --bg-alt: #f9fafb;
  --border: #e5e7eb;
  --success: #10b981;
  --danger: #ef4444;
}

/* ── Base ── */
body { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; color: var(--text); background: var(--bg); }

/* ── Navbar ── */
.navbar-brand { font-weight: 800; font-size: 1.4rem; color: var(--primary) !important; letter-spacing: -0.5px; }
.navbar { border-bottom: 1px solid var(--border); background: #fff !important; }
.btn-primary-custom { background: var(--primary); color: #fff; border: none; border-radius: 8px; padding: 8px 20px; font-weight: 600; transition: background 0.2s; text-decoration: none; }
.btn-primary-custom:hover { background: var(--primary-dark); color: #fff; }
.btn-outline-custom { color: var(--primary); border: 2px solid var(--primary); border-radius: 8px; padding: 7px 18px; font-weight: 600; background: transparent; transition: all 0.2s; text-decoration: none; }
.btn-outline-custom:hover { background: var(--primary); color: #fff; }

/* ── Article layout ── */
.article-wrapper { max-width: 820px; margin: 0 auto; padding: 0 24px 80px; }
.article-header { padding: 56px 0 36px; border-bottom: 1px solid var(--border); margin-bottom: 40px; }
.article-breadcrumb { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 14px; }
.article-breadcrumb a { color: var(--primary); text-decoration: none; }
.article-breadcrumb a:hover { text-decoration: underline; }
.article-category { display: inline-block; background: var(--primary-light); color: var(--primary-dark); border-radius: 20px; padding: 4px 14px; font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 14px; }
.article-category.gold { background: var(--gold-light); color: #92400e; }
.article-title { font-size: 2.4rem; font-weight: 800; line-height: 1.2; letter-spacing: -0.5px; margin: 0 0 16px; color: var(--text); }
.article-meta { color: var(--text-muted); font-size: 0.88rem; display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.article-meta span { display: flex; align-items: center; gap: 5px; }
.article-excerpt { font-size: 1.15rem; color: var(--text-muted); line-height: 1.65; margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--border); }

/* ── Article body typography ── */
.article-body { font-size: 1.02rem; line-height: 1.78; }
.article-body h2 { font-size: 1.65rem; font-weight: 800; margin: 48px 0 16px; padding-top: 8px; color: var(--text); letter-spacing: -0.3px; }
.article-body h3 { font-size: 1.2rem; font-weight: 700; margin: 30px 0 12px; color: var(--text); }
.article-body p { margin-bottom: 18px; color: var(--text); }
.article-body ul, .article-body ol { padding-left: 22px; margin-bottom: 18px; }
.article-body li { line-height: 1.72; margin-bottom: 8px; }
.article-body a { color: var(--primary); text-decoration: underline; text-decoration-color: var(--primary-light); }
.article-body a:hover { color: var(--primary-dark); text-decoration-color: var(--primary); }
.article-body strong { font-weight: 700; color: var(--text); }

/* ── Tables ── */
.blog-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 0.9rem; border-radius: 10px; overflow: hidden; box-shadow: 0 1px 8px rgba(0,0,0,0.06); }
.blog-table th { background: var(--primary-light); color: var(--primary-dark); padding: 11px 14px; text-align: left; font-weight: 700; font-size: 0.82rem; letter-spacing: 0.3px; }
.blog-table td { padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.blog-table tr:last-child td { border-bottom: none; }
.blog-table tr:hover td { background: #fafafa; }
.blog-table .highlight td { background: var(--gold-light); font-weight: 600; }
.blog-table .good { color: var(--success); font-weight: 700; }
.blog-table .warn { color: var(--gold); font-weight: 700; }
.blog-table .bad { color: var(--danger); font-weight: 700; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ── Callout / Alert boxes ── */
.callout { border-radius: 10px; padding: 16px 20px; margin: 24px 0; font-size: 0.95rem; }
.callout .callout-title { font-weight: 700; display: flex; align-items: center; gap: 7px; margin-bottom: 6px; }
.callout p:last-child { margin-bottom: 0; }
.callout.info { background: var(--primary-light); border-left: 4px solid var(--primary); }
.callout.info .callout-title { color: var(--primary-dark); }
.callout.warning { background: var(--gold-light); border-left: 4px solid var(--gold); }
.callout.warning .callout-title { color: #92400e; }
.callout.danger { background: #fee2e2; border-left: 4px solid var(--danger); }
.callout.danger .callout-title { color: #991b1b; }
.callout.success { background: #dcfce7; border-left: 4px solid var(--success); }
.callout.success .callout-title { color: #166534; }

/* ── Simulation / chiffres ── */
.simulation-card { background: var(--bg-alt); border: 2px solid var(--primary-light); border-radius: 14px; padding: 24px; margin: 24px 0; }
.simulation-card h4 { color: var(--primary-dark); font-weight: 800; margin-bottom: 16px; font-size: 1.05rem; display: flex; align-items: center; gap: 8px; }
.sim-row { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
.sim-row:last-child { border-bottom: none; font-weight: 700; color: var(--primary-dark); font-size: 1rem; }
.sim-row .label { color: var(--text-muted); }
.sim-row .value { font-weight: 600; }
.sim-row.result .value { color: var(--success); font-size: 1.1rem; }

/* ── Checklist ── */
.checklist { list-style: none; padding: 0; margin: 16px 0; }
.checklist li { padding: 10px 14px; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 8px; margin-bottom: 8px; display: flex; align-items: flex-start; gap: 10px; font-size: 0.94rem; }
.checklist li::before { content: "✓"; color: var(--success); font-weight: 800; flex-shrink: 0; margin-top: 1px; }
.checklist.warning li::before { content: "⚠"; color: var(--gold); }
.checklist.numbered { counter-reset: item; }
.checklist.numbered li::before { counter-increment: item; content: counter(item); background: var(--primary); color: #fff; border-radius: 50%; width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; font-size: 0.72rem; font-weight: 800; flex-shrink: 0; }

/* ── CTA mid-article ── */
.cta-box { background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%); border-radius: 14px; padding: 32px; text-align: center; margin: 48px 0; color: #fff; }
.cta-box h3 { color: #fff; font-size: 1.35rem; font-weight: 800; margin-bottom: 10px; }
.cta-box p { color: rgba(255,255,255,0.85); margin-bottom: 20px; font-size: 0.95rem; }
.btn-cta { background: #fff; color: var(--primary); font-weight: 700; border-radius: 8px; padding: 12px 28px; text-decoration: none; display: inline-block; transition: all 0.2s; font-size: 0.95rem; }
.btn-cta:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-1px); }
.cta-note { color: rgba(255,255,255,0.65); font-size: 0.8rem; margin-top: 10px; margin-bottom: 0; }

/* ── FAQ ── */
.faq-section-blog { margin: 48px 0 32px; }
.faq-section-blog h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 20px; }
.faq-item-blog { border: 1px solid var(--border); border-radius: 10px; margin-bottom: 10px; overflow: hidden; }
.faq-q { background: var(--bg); border: none; width: 100%; text-align: left; padding: 16px 20px; font-weight: 600; font-size: 0.95rem; color: var(--text); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px; transition: background 0.15s; }
.faq-q:hover { background: var(--bg-alt); }
.faq-q.active { color: var(--primary); background: #f5f6ff; }
.faq-arrow { flex-shrink: 0; width: 20px; height: 20px; background: var(--primary-light); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.7rem; transition: transform 0.2s; }
.faq-q.active .faq-arrow { transform: rotate(180deg); background: var(--primary); color: #fff; }
.faq-a { display: none; padding: 0 20px 16px; color: var(--text-muted); font-size: 0.92rem; line-height: 1.65; border-top: 1px solid var(--border); }
.faq-a.open { display: block; }

/* ── Related articles ── */
.related-section { border-top: 1px solid var(--border); padding-top: 40px; margin-top: 48px; }
.related-section h3 { font-weight: 800; margin-bottom: 20px; font-size: 1.2rem; }
.related-card { border: 1px solid var(--border); border-radius: 12px; padding: 20px; text-decoration: none; color: var(--text); display: block; transition: all 0.2s; height: 100%; }
.related-card:hover { border-color: var(--primary); box-shadow: 0 4px 16px rgba(99,102,241,0.1); color: var(--text); text-decoration: none; }
.related-card .cat { font-size: 0.75rem; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 8px; display: block; }
.related-card h4 { font-size: 0.95rem; font-weight: 700; margin: 0; line-height: 1.4; }

/* ── Blog listing ── */
.blog-hero { background: linear-gradient(135deg, #f0f1ff 0%, #fafafa 100%); padding: 80px 0 60px; border-bottom: 1px solid var(--border); }
.blog-hero h1 { font-size: 2.5rem; font-weight: 800; letter-spacing: -0.5px; }
.post-card { border: 1px solid var(--border); border-radius: 14px; padding: 28px; background: var(--bg); transition: all 0.2s; height: 100%; display: flex; flex-direction: column; }
.post-card:hover { border-color: var(--primary); box-shadow: 0 6px 24px rgba(99,102,241,0.1); transform: translateY(-2px); }
.post-card .cat-badge { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 10px; display: inline-block; border-radius: 20px; padding: 3px 12px; }
.post-card .cat-badge.blue { background: var(--primary-light); color: var(--primary-dark); }
.post-card .cat-badge.gold { background: var(--gold-light); color: #92400e; }
.post-card h2 { font-size: 1.2rem; font-weight: 800; margin-bottom: 10px; line-height: 1.35; }
.post-card h2 a { color: var(--text); text-decoration: none; }
.post-card h2 a:hover { color: var(--primary); }
.post-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; flex-grow: 1; }
.post-card .meta { font-size: 0.8rem; color: #9ca3af; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); display: flex; gap: 12px; }
.read-more { color: var(--primary); font-size: 0.88rem; font-weight: 700; text-decoration: none; margin-top: 14px; display: inline-block; }
.read-more:hover { text-decoration: underline; }

/* ── Footer ── */
footer { background: #1f2937; color: #9ca3af; padding: 32px 0; }
footer .logo { color: #fff; font-weight: 800; font-size: 1.2rem; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .article-title { font-size: 1.8rem; }
  .article-body h2 { font-size: 1.35rem; }
  .blog-hero h1 { font-size: 1.8rem; }
  .blog-table { font-size: 0.82rem; }
  .blog-table th, .blog-table td { padding: 8px 10px; }
  .simulation-card { padding: 16px; }
}