/* SmallBizAI Stylesheet */
:root{--bg:#fff;--text:#1a1a2e;--accent:#2563eb;--accent-hover:#1d4ed8;--border:#e5e7eb;--muted:#6b7280;--light-bg:#f9fafb;--card-shadow:0 1px 3px rgba(0,0,0,0.08);--radius:8px;--max-width:1100px}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.7;font-size:16px}
.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}
.site-header{border-bottom:1px solid var(--border);padding:16px 0;background:var(--bg);position:sticky;top:0;z-index:100}
.site-header .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.logo{font-size:1.4rem;font-weight:700;color:var(--accent);text-decoration:none}
.main-nav{display:flex;gap:20px;flex-wrap:wrap}
.main-nav a{color:var(--text);text-decoration:none;font-size:0.95rem;font-weight:500}
.main-nav a:hover{color:var(--accent)}
.hero{padding:60px 0 40px;text-align:center}
.hero h1{font-size:2.2rem;line-height:1.3;margin-bottom:16px;color:var(--text)}
.hero p{font-size:1.15rem;color:var(--muted);max-width:700px;margin:0 auto}
.categories-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;padding:20px 0 40px}
.category-card{display:block;padding:24px;border:1px solid var(--border);border-radius:var(--radius);text-decoration:none;color:var(--text);transition:box-shadow 0.2s,transform 0.2s}
.category-card:hover{box-shadow:var(--card-shadow);transform:translateY(-2px)}
.category-card h2{font-size:1.15rem;color:var(--accent);margin-bottom:8px}
.category-card p{font-size:0.9rem;color:var(--muted)}
.latest-articles{padding:0 0 40px}
.latest-articles h2,.section-title{font-size:1.5rem;margin-bottom:24px}
.article-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.article-card{border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:box-shadow 0.2s}
.article-card:hover{box-shadow:var(--card-shadow)}
.card-category,.article-category{display:inline-block;background:var(--light-bg);color:var(--accent);font-size:0.8rem;font-weight:600;padding:3px 10px;border-radius:20px;margin-bottom:10px;text-transform:uppercase;letter-spacing:0.5px}
.article-card h3{font-size:1.1rem;margin-bottom:8px;line-height:1.4}
.article-card h3 a{color:var(--text);text-decoration:none}
.article-card h3 a:hover{color:var(--accent)}
.article-card p{color:var(--muted);font-size:0.9rem}
.breadcrumb{font-size:0.85rem;color:var(--muted);padding:20px 0 10px}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--accent)}
.category-desc{font-size:1.1rem;color:var(--muted);margin-bottom:30px;max-width:700px}
.single-article{max-width:750px;margin:0 auto;padding:20px 0 60px}
.single-article header{margin-bottom:30px}
.single-article h1{font-size:2rem;line-height:1.3;margin:10px 0 16px}
.article-meta{font-size:0.9rem;color:var(--muted);margin-bottom:16px;display:flex;gap:16px}
.article-excerpt{font-size:1.1rem;color:var(--muted);line-height:1.6;padding:16px 20px;border-left:3px solid var(--accent);background:var(--light-bg);border-radius:0 var(--radius) var(--radius) 0}
.article-content{font-size:1.05rem;line-height:1.8}
.article-content h2{font-size:1.5rem;margin:40px 0 16px;color:var(--text)}
.article-content h3{font-size:1.2rem;margin:30px 0 12px}
.article-content p{margin-bottom:20px}
.article-content ul,.article-content ol{margin:0 0 20px 24px}
.article-content li{margin-bottom:8px}
.article-content a{color:var(--accent);text-decoration:underline}
.article-content a:hover{color:var(--accent-hover)}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:0.95rem}
.article-content th{background:var(--light-bg);text-align:left;padding:12px;border:1px solid var(--border);font-weight:600}
.article-content td{padding:12px;border:1px solid var(--border)}
.article-content tr:nth-child(even){background:var(--light-bg)}
.article-content blockquote{margin:20px 0;padding:16px 20px;border-left:4px solid var(--accent);background:var(--light-bg);font-style:italic;color:var(--muted)}
.article-content .cta-box{background:var(--light-bg);border:2px solid var(--accent);border-radius:var(--radius);padding:24px;margin:30px 0;text-align:center}
.article-content .cta-box h3{margin-top:0;color:var(--accent)}
.related-articles{margin-top:50px;padding-top:30px;border-top:1px solid var(--border)}
.related-articles h3{font-size:1.2rem;margin-bottom:16px}
.related-articles ul{list-style:none}
.related-articles li{margin-bottom:10px}
.related-articles a{color:var(--accent);text-decoration:none}
.related-articles a:hover{text-decoration:underline}
.site-footer{border-top:1px solid var(--border);padding:30px 0;margin-top:60px;text-align:center;color:var(--muted);font-size:0.85rem}
.site-footer p{margin-bottom:8px}
.site-footer a{color:var(--muted);text-decoration:none;margin:0 8px}
.site-footer a:hover{color:var(--accent)}
.faq-section{margin:30px 0}
.faq-section details{margin-bottom:12px;border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.faq-section summary{font-weight:600;cursor:pointer;color:var(--text)}
.faq-section details p{margin-top:10px;color:var(--muted)}
@media(max-width:768px){
  .hero h1{font-size:1.6rem}
  .hero{padding:40px 0 30px}
  .single-article h1{font-size:1.5rem}
  .article-grid{grid-template-columns:1fr}
  .site-header .container{flex-direction:column;align-items:flex-start}
}