/* SPEP Guide Pages — shared styling */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:#f8fafc;color:#0f172a;line-height:1.6}

/* NAV */
nav{background:#fff;border-bottom:1px solid #e2e8f0;padding:14px 40px;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:100}
.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.nav-brand-mark{font-size:22px;font-weight:800;color:#1e3a5f;letter-spacing:-.5px}
.nav-brand-tag{font-size:10px;color:#64748b;line-height:1.25;font-weight:500}
.nav-links{display:flex;gap:28px}
.nav-links a{color:#475569;text-decoration:none;font-size:14px;font-weight:500;transition:color .2s}
.nav-links a:hover{color:#2563eb}
.nav-cta{padding:9px 18px;background:#2563eb;border:none;border-radius:8px;color:#fff;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-block;transition:background .2s}
.nav-cta:hover{background:#1d4ed8}

/* BREADCRUMB */
.breadcrumb{max-width:880px;margin:0 auto;padding:20px 24px 0;font-size:13px;color:#64748b}
.breadcrumb a{color:#2563eb;text-decoration:none}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb .sep{margin:0 8px;color:#cbd5e1}

/* ARTICLE */
.article{max-width:880px;margin:0 auto;padding:24px 24px 80px;background:#fff}
.article-header{border-bottom:1px solid #e2e8f0;padding-bottom:28px;margin-bottom:32px}
.article-meta{font-size:13px;color:#64748b;margin-bottom:10px;font-weight:500}
.article-meta span{color:#cbd5e1;margin:0 8px}
.article h1{font-size:36px;font-weight:800;color:#0f172a;line-height:1.2;margin-bottom:14px;letter-spacing:-.5px}
.article .lede{font-size:18px;color:#475569;line-height:1.6;margin-bottom:0}

.article h2{font-size:26px;font-weight:700;color:#0f172a;margin:44px 0 16px;line-height:1.3;scroll-margin-top:80px}
.article h3{font-size:19px;font-weight:700;color:#0f172a;margin:28px 0 12px;line-height:1.4}
.article p{margin-bottom:16px;font-size:16px;color:#1e293b;line-height:1.75}
.article ul,.article ol{margin:0 0 20px 24px}
.article li{margin-bottom:8px;font-size:16px;color:#1e293b;line-height:1.7}
.article a{color:#2563eb;text-decoration:none;border-bottom:1px solid #bfdbfe;transition:border-color .2s}
.article a:hover{border-bottom-color:#2563eb}
.article strong{color:#0f172a;font-weight:700}
.article em{font-style:italic;color:#475569}

/* TLDR CALLOUT */
.tldr{background:linear-gradient(135deg,#eff6ff 0%,#dbeafe 100%);border-left:4px solid #2563eb;border-radius:8px;padding:20px 24px;margin:0 0 32px}
.tldr-label{font-size:12px;font-weight:800;color:#2563eb;letter-spacing:1px;margin-bottom:8px}
.tldr p{font-size:16px;color:#1e3a5f;margin-bottom:0;line-height:1.6}

/* COMPARISON TABLE */
.compare-table{width:100%;border-collapse:collapse;margin:24px 0 32px;border:1px solid #e2e8f0;border-radius:10px;overflow:hidden;font-size:14px}
.compare-table th,.compare-table td{padding:14px 16px;text-align:left;border-bottom:1px solid #f1f5f9}
.compare-table tr:last-child td{border-bottom:none}
.compare-table th{background:#f8fafc;color:#0f172a;font-weight:700;font-size:13px}
.compare-table th.crsp-col{background:#eff6ff;color:#1e40af}
.compare-table th.crst-col{background:#f1f5f9;color:#1e3a5f}
.compare-table td:first-child{font-weight:600;color:#334155;background:#fafafa;width:32%}
.compare-table td{color:#475569}

/* INSIGHT BOX (founder voice) */
.insight{background:#fefce8;border-left:4px solid #eab308;border-radius:8px;padding:18px 22px;margin:24px 0}
.insight-label{font-size:11px;font-weight:800;color:#a16207;letter-spacing:1px;margin-bottom:6px}
.insight p{font-size:15px;color:#713f12;margin-bottom:0;line-height:1.65;font-style:italic}
.insight p strong{color:#713f12}

/* CTA BOX */
.cta-box{background:linear-gradient(135deg,#1e3a5f 0%,#2563eb 100%);border-radius:14px;padding:36px 32px;margin:40px 0;text-align:center;color:#fff}
.cta-box h3{font-size:22px;font-weight:700;color:#fff;margin-bottom:10px}
.cta-box p{color:#dbeafe;font-size:15px;margin-bottom:22px;line-height:1.6}
.cta-box a{display:inline-block;padding:14px 32px;background:#fff;color:#2563eb;border-radius:10px;font-weight:700;font-size:15px;text-decoration:none;border:none;transition:transform .2s,box-shadow .2s}
.cta-box a:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,0,0,.2)}
.cta-box .cta-note{color:#bfdbfe;font-size:12px;margin-top:14px;margin-bottom:0}

/* RELATED GUIDES */
.related{margin:40px 0 0;padding-top:32px;border-top:1px solid #e2e8f0}
.related h3{font-size:18px;font-weight:700;color:#0f172a;margin-bottom:14px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.related-card{display:block;padding:16px 18px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;text-decoration:none;color:inherit;transition:all .2s}
.related-card:hover{background:#eff6ff;border-color:#bfdbfe;transform:translateY(-1px)}
.related-card h4{font-size:14px;font-weight:700;color:#1e3a5f;margin-bottom:4px}
.related-card p{font-size:13px;color:#64748b;margin-bottom:0}

/* FAQ IN ARTICLE */
.article-faq{margin:40px 0 0}
.article-faq details{background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;margin-bottom:10px;padding:0}
.article-faq details[open]{box-shadow:0 2px 8px rgba(0,0,0,.04);background:#fff}
.article-faq summary{padding:16px 20px;font-size:15px;font-weight:600;color:#0f172a;cursor:pointer;list-style:none;position:relative;padding-right:44px}
.article-faq summary::-webkit-details-marker{display:none}
.article-faq summary::after{content:'+';position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:20px;color:#64748b;font-weight:400;transition:transform .2s}
.article-faq details[open] summary::after{content:'−';transform:translateY(-50%) rotate(0deg)}
.article-faq details p{padding:0 20px 16px;font-size:14px;color:#475569;line-height:1.7;margin-bottom:0}

/* FOOTER */
footer{background:#0f172a;color:#94a3b8;padding:40px 24px;text-align:center}
footer .foot-brand{font-size:20px;font-weight:800;color:#fff;margin-bottom:8px}
footer .foot-disc{font-size:12px;color:#64748b;margin-bottom:4px}
footer .foot-disc a{color:#60a5fa;text-decoration:none}
footer .foot-copy{font-size:11px;color:#475569;margin-top:12px}
footer .foot-links{margin-top:14px;font-size:12px}
footer .foot-links a{color:#94a3b8;text-decoration:none;margin:0 10px}
footer .foot-links a:hover{color:#fff}

/* RESPONSIVE */
@media (max-width:720px){
  nav{padding:10px 16px;flex-wrap:wrap;gap:10px}
  .nav-links{gap:16px;font-size:13px}
  .nav-links a{font-size:13px}
  .nav-brand-tag{display:none}
  .article{padding:20px 18px 60px}
  .article h1{font-size:28px}
  .article h2{font-size:22px;margin:36px 0 14px}
  .article h3{font-size:17px}
  .article p,.article li{font-size:15px}
  .compare-table{font-size:13px}
  .compare-table th,.compare-table td{padding:10px 12px}
  .cta-box{padding:28px 22px}
  .cta-box h3{font-size:19px}
}