:root{--color-primary:#1a73e8;--color-primary-dark:#1557b0;--color-primary-light:#4285f4;--color-white:#ffffff;--color-background:#f5f5f5;--color-gray-light:#e0e0e0;--color-gray:#9e9e9e;--color-gray-dark:#616161;--color-text:#1a1a1a;--color-text-secondary:#666666;--color-warning:#FFC107;--color-warning-light:#fff8e1;--color-error:#D32F2F;--color-error-light:#ffebee;--color-success:#388E3C;--color-success-light:#e8f5e9;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--spacing-xl:32px;--spacing-xxl:48px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--transition-fast:150ms ease;--transition-normal:250ms ease;--transition-slow:350ms ease;--shadow-sm:0 1px 2px rgba(0,0,0,0.1);--shadow-md:0 4px 6px rgba(0,0,0,0.1);--shadow-lg:0 10px 15px rgba(0,0,0,0.1)}*{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%}body,html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;background-color:var(--color-background);color:var(--color-text);min-height:100vh;line-height:1.5}body{display:flex;flex-direction:column;align-items:center}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeOut{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-10px)}}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--color-gray-light)}::-webkit-scrollbar-thumb{background:var(--color-gray);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb:hover{background:var(--color-gray-dark)}