:root{--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--bg-tertiary: #fafafa;--text-primary: #333333;--text-secondary: #555555;--text-tertiary: #666666;--text-hint: #888888;--border-color: #dddddd;--border-light: #e0e0e0;--input-bg: #ffffff;--shadow-color: rgba(0, 0, 0, .1);--shadow-hover: rgba(0, 0, 0, .15)}.dark{--bg-primary: #1e1e1e;--bg-secondary: #2d2d2d;--bg-tertiary: #383838;--text-primary: #e0e0e0;--text-secondary: #b0b0b0;--text-tertiary: #999999;--text-hint: #777777;--border-color: #404040;--border-light: #4a4a4a;--input-bg: #2d2d2d;--shadow-color: rgba(0, 0, 0, .3);--shadow-hover: rgba(0, 0, 0, .4)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-primary);color:var(--text-primary);transition:background-color .3s,color .3s}*{box-sizing:border-box}h1,h2,h3,h4,h5,h6{margin:0;font-weight:600}button{font-family:inherit}