:root{--bg-primary:#fff;--bg-secondary:#f9fafb;--bg-tertiary:#f3f4f6;--text-primary:#111827;--text-secondary:#374151;--text-tertiary:#6b7280;--border-light:#e5e7eb;--border-medium:#d1d5db;--accent-primary:#2563eb;--accent-primary-hover:#1d4ed8;--accent-primary-light:#dbeafe;--success:#059669;--success-light:#d1fae5;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;--shadow-xl:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Monaco,Consolas,monospace}html,body{max-width:100vw;overflow-x:hidden}body{color:var(--text-primary);background:var(--bg-secondary);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}a{color:inherit;text-decoration:none;transition:color .2s}a:hover{color:var(--accent-primary)}button,input,select,textarea{font-family:inherit;transition:all .2s}button{cursor:pointer;background:0 0;border:none}button:active{transform:translateY(1px)}input:focus,select:focus,textarea:focus{outline:2px solid var(--accent-primary);outline-offset:2px}.card{background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:20px}.card:hover{box-shadow:var(--shadow-md)}