*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}canvas,img,picture,svg,video{display:block;max-width:100%}button,input,select,textarea{font:inherit}h1,h2,h3,h4,h5,h6,p{overflow-wrap:break-word}:root{--primary:#1a56db;--primary-hover:#1648c0;--primary-light:#e8effd;--secondary:#374151;--secondary-hover:#1f2937;--secondary-light:#f3f4f6;--accent:#10b981;--accent-hover:#059669;--accent-light:#d1fae5;--danger:#ef4444;--danger-light:#fee2e2;--warning:#f59e0b;--warning-light:#fef3c7;--info:#3b82f6;--info-light:#dbeafe;--white:#fff;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--gray-900:#111827;--font-sans:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji";--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--space-24:6rem;--radius-sm:0.375rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-full:9999px;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.1);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.1);--transition-fast:150ms ease;--transition-base:200ms ease;--transition-slow:300ms ease}body{font-family:var(--font-sans);font-size:1rem;line-height:1.6;color:var(--gray-800);background-color:var(--white);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{width:100%;max-width:1200px;margin-inline:auto;padding-inline:var(--space-6)}.container--narrow{max-width:768px}main{min-height:100dvh}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;color:var(--gray-900)}h1{font-size:clamp(2rem,5vw,3rem)}h2{font-size:clamp(1.5rem,3.5vw,2.25rem)}h3{font-size:clamp(1.25rem,2.5vw,1.75rem)}a{color:var(--primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-hover);text-decoration:underline}code,pre{font-family:var(--font-mono);font-size:.875em}pre{background-color:var(--gray-900);color:var(--gray-100);padding:var(--space-6);border-radius:var(--radius-lg);overflow-x:auto;line-height:1.7}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);font-size:.9375rem;font-weight:600;border:2px solid transparent;border-radius:var(--radius-md);cursor:pointer;text-decoration:none;transition:background-color var(--transition-base),border-color var(--transition-base),color var(--transition-base),box-shadow var(--transition-base);white-space:nowrap}.btn--primary{background-color:var(--primary);color:var(--white);border-color:var(--primary)}.btn--primary:hover{background-color:var(--primary-hover);border-color:var(--primary-hover);color:var(--white);text-decoration:none;box-shadow:var(--shadow-md)}.btn--outline{background-color:transparent;color:var(--primary);border-color:var(--primary)}.btn--outline:hover{background-color:var(--primary-light);color:var(--primary);text-decoration:none}:focus-visible{outline:3px solid var(--primary);outline-offset:2px;border-radius:var(--radius-sm)}