:root{--primary:#0A66C2;--primary-hover:#004182;--primary-light:#70b5f9;--bg-body:#0d1117;--bg-surface:#161b22;--bg-card:#1b1f23;--bg-card-hover:#21262d;--text-primary:rgba(255,255,255,0.92);--text-secondary:rgba(255,255,255,0.6);--text-tertiary:rgba(255,255,255,0.4);--border-color:rgba(255,255,255,0.12);--border-color-hover:rgba(255,255,255,0.2);--hover-bg:rgba(255,255,255,0.08);--shadow-sm:0 1px 3px rgba(0,0,0,0.3);--shadow-md:0 4px 12px rgba(0,0,0,0.4);--shadow-lg:0 8px 24px rgba(0,0,0,0.5);--gradient-primary:linear-gradient(135deg,#0A66C2,#70b5f9);--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--space-20:80px;--space-24:96px;--max-width:1200px;--navbar-height:64px;--font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"SF Mono","Monaco","Inconsolata","Fira Mono",monospace;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-pill:24px;--radius-full:9999px;--transition-fast:0.167s cubic-bezier(0.4,0,0.2,1);--transition-normal:0.2s ease;--transition-slow:0.3s ease;--sidebar-width:240px;--sidebar-collapsed-width:72px;--header-height:64px}*,:after,:before{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-family);background-color:var(--bg-body);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh}a{color:var(--primary-light);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:#fff}img{max-width:100%;display:block}h1,h2,h3,h4,h5,h6{line-height:1.25;font-weight:700;color:var(--text-primary)}h1{font-size:56px}h2{font-size:36px}h3{font-size:24px}h4{font-size:18px}p{color:var(--text-secondary);line-height:1.7}code{font-family:var(--font-mono);background:var(--bg-card);padding:2px 6px;border-radius:var(--radius-sm);font-size:.9em;border:1px solid var(--border-color)}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-6)}@media (max-width:768px){h1{font-size:36px}h2{font-size:28px}h3{font-size:20px}.container{padding:0 var(--space-4)}}@media (max-width:480px){h1{font-size:28px}h2{font-size:24px}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-body)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background:var(--bg-body);gap:16px;color:var(--text-secondary)}.loading-spinner{width:36px;height:36px;border:3px solid var(--border-color);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}