:root{--bg-dark:#0D1117;--bg-card:#161B22;--border:#30363D;--text-muted:#8B949E;--text-white:#FFFFFF;--teal:#00D4AA;--teal-glow:rgba(0,212,170,0.3);--cyan:#00B4D8;--bg-light:#F0FDF9;--text-dark:#0D1117;--font-headline:'Space Grotesk',sans-serif;--font-body:'Inter',sans-serif;--font-mono:'JetBrains Mono',monospace;--space-xs:0.5rem;--space-sm:1rem;--space-md:1.5rem;--space-lg:2.5rem;--space-xl:4rem;--space-2xl:6rem}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
h1,h2,h3,h4{font-family:var(--font-headline);font-weight:600;line-height:1.1;color:var(--text-white)}
.fade-up{opacity:0;transform:translateY(20px);transition:opacity 0.5s ease,transform 0.5s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
.btn{display:inline-flex;align-items:center;gap:var(--space-xs);padding:0.875rem 1.5rem;font-family:var(--font-body);font-size:0.9375rem;font-weight:500;text-decoration:none;border-radius:6px;transition:all 0.2s ease;cursor:pointer;border:none}
.btn-gradient{background:linear-gradient(135deg,var(--teal),var(--cyan));color:var(--bg-dark);font-weight:600}
.btn-gradient:hover{transform:translateY(-1px);box-shadow:0 4px 20px rgba(0,212,170,0.4)}
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--bg-dark);border-bottom:1px solid var(--border);padding:var(--space-sm) 0}
.nav-container{display:flex;align-items:center;justify-content:space-between}
.nav-logo{font-family:var(--font-headline);font-size:1.25rem;font-weight:600;color:var(--text-white);text-decoration:none}
.nav-links{display:flex;align-items:center;gap:var(--space-lg)}
.nav-link{font-size:0.875rem;font-weight:500;color:var(--text-muted);text-decoration:none;transition:color 0.2s ease}
.nav-link:hover{color:var(--text-white)}
.nav-cta{padding:0.625rem 1.25rem;font-size:0.875rem}
.nav-mobile-toggle{display:none;background:none;border:none;color:var(--text-white);cursor:pointer;padding:var(--space-xs)}
.nav-dropdown{position:relative}
.nav-dropdown-toggle:hover{color:var(--text-white)}
.nav-dropdown-menu{display:none;position:absolute;top:calc(100% + 0.75rem);left:0;background:var(--bg-card);border:1px solid var(--border);min-width:200px;z-index:200}
.nav-dropdown:hover .nav-dropdown-menu,.nav-dropdown:focus-within .nav-dropdown-menu{display:block}
.nav-dropdown-menu a{display:block;padding:0.75rem 1.25rem;font-size:0.875rem;color:var(--text-muted);text-decoration:none;transition:color 0.2s ease,background 0.2s ease}
.nav-dropdown-menu a:hover{color:var(--teal);background:var(--bg-dark)}
.footer{background:var(--bg-dark);border-top:1px solid var(--border);padding:var(--space-2xl) 0 var(--space-lg)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:var(--space-xl);margin-bottom:var(--space-xl)}
.footer-brand{max-width:280px}
.footer-logo{font-family:var(--font-headline);font-size:1.25rem;font-weight:600;color:var(--text-white);margin-bottom:var(--space-sm)}
.footer-tagline{color:var(--text-muted);font-size:0.9375rem}
.footer-links ul{list-style:none}
.footer-links li{margin-bottom:var(--space-xs)}
.footer-links a{color:var(--text-muted);text-decoration:none;font-size:0.9375rem;transition:color 0.2s ease}
.footer-links a:hover{color:var(--teal)}
.footer-base{border-top:1px solid var(--border);padding-top:var(--space-lg)}
.footer-legal{font-size:0.75rem;color:var(--text-muted);line-height:1.6}
.related-card{padding:1.25rem;border:1px solid rgba(255,255,255,0.1);border-radius:8px;background:rgba(255,255,255,0.03)}
.footer-links h4{font-size:0.75rem;font-weight:600;text-transform:uppercase;letter-spacing:0.08em;color:var(--text-muted);margin-bottom:var(--space-md)}
body{font-family:var(--font-body);color:var(--text-white);background:var(--bg-dark);line-height:1.6;-webkit-font-smoothing:antialiased}
.related-card-title a:hover{color:var(--teal,#00e5cc)}
.author-attribution{color:var(--text-muted);font-size:0.85rem;margin-top:0.5rem;margin-bottom:1.5rem}
.related-articles{padding:3rem 0;border-top:1px solid rgba(255,255,255,0.08)}
@media (max-width:768px){.related-grid{grid-template-columns:1fr}}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.related-card-title{font-size:0.95rem;line-height:1.4;margin-bottom:0.5rem}
.nav-dropdown-toggle{display:flex;align-items:center;gap:0.25rem;font-size:0.875rem;font-weight:500;color:var(--text-muted);cursor:pointer;background:none;border:none;padding:0;font-family:var(--font-body);transition:color 0.2s ease}
.related-loading{color:rgba(255,255,255,0.35);font-style:italic;font-size:0.875rem}
.related-card-title a{color:inherit;text-decoration:none}
.author-attribution a{color:var(--teal);text-decoration:none}
.related-card-date{font-size:0.75rem;color:rgba(255,255,255,0.45);margin-bottom:0.5rem}
.related-title{font-size:1.25rem;margin-bottom:1.5rem;color:var(--teal,#00e5cc)}
.related-card-desc{font-size:0.8rem;color:rgba(255,255,255,0.55);line-height:1.5;margin:0}

/* Related links (SSI per-page related include) */
.related-links { padding: 2.5rem 0; border-top: 1px solid rgba(255,255,255,0.08); margin-top: 3rem; }
.related-links-title { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--teal); margin-bottom: 1rem; font-weight: 500; }
.related-links-list { list-style: none; padding: 0; margin: 0 0 1rem 0; display: flex; flex-direction: column; gap: 0.6rem; }
.related-links-list a { color: var(--text-white); text-decoration: none; font-size: 0.95rem; }
.related-links-list a:hover { color: var(--teal); }
.related-links-date { color: rgba(255,255,255,0.4); font-size: 0.85rem; }
.related-links-all { font-size: 0.85rem; color: var(--teal); text-decoration: none; }
.related-links-all:hover { text-decoration: underline; }