:root{--bl-primary:#1F2937;--bl-primary-light:#374151;--bl-primary-dark:#111827;--bl-secondary:#00B4D8;--bl-secondary-light:#48CAE4;--bl-secondary-dark:#0096C7;--bl-accent:#10B981;--bl-dark:#0F172A;--bl-darker:#020617;--bl-light:#F8FAFC;--bl-text:#1E293B;--bl-text-secondary:#64748B;--bl-border:#E2E8F0;--bl-gradient:linear-gradient(160deg, #1F2937 0%, #0096C7 100%);--bl-font-heading:'Inter','Segoe UI',sans-serif;--bl-font-body:'Inter','Segoe UI',sans-serif;--bl-font-mono:'JetBrains Mono','Fira Code',monospace;--bl-ease:cubic-bezier(0.22, 1, 0.36, 1);--bl-radius:6px;--bl-radius-lg:10px}*,::after,::before{box-sizing:border-box}body{font-family:Inter,'Segoe UI',sans-serif;font-family:var(--bl-font-body);color:#1e293b;color:var(--bl-text);line-height:1.65;background:#fff}h1,h2,h3,h4,h5,h6{font-family:Inter,'Segoe 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