:root{--ct-dark-primary:#0d1117;--ct-dark-secondary:#161b22;--ct-gold:#f7931a;--ct-gold-hover:#e8850f;--ct-blue:#58a6ff;--ct-green:#3fb950;--ct-red:#f85149;--ct-text-muted:#8b949e;--ct-border:#30363d;--ct-card-shadow:0 4px 24px rgba(0,0,0,.08);--ct-card-shadow-hover:0 8px 32px rgba(0,0,0,.12)}body{background-color:#f6f8fa;color:#24292f;display:flex;flex-direction:column;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;min-height:100vh}.bg_header{background:linear-gradient(135deg,var(--ct-dark-primary) 0,var(--ct-dark-secondary) 100%)!important;border-bottom:2px solid var(--ct-gold);box-shadow:0 2px 16px rgba(0,0,0,.3)}.navbar-brand{font-size:1.3rem;font-weight:700;letter-spacing:-.5px}.navbar-brand .text-warning{color:var(--ct-gold)!important}.navbar .nav-link{font-weight:500;transition:color .2s ease}.navbar .nav-link:hover{color:var(--ct-gold)!important}.hero_section{background:linear-gradient(135deg,var(--ct-dark-primary) 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