*,*:before,*:after{box-sizing:border-box}:root{--bg-primary: #f5f7fa;--bg-secondary: #ffffff;--bg-tertiary: #fafbfc;--border-color: #e2e8f0;--text-primary: #1a202c;--text-secondary: #4a5568;--text-tertiary: #718096;--accent-primary: #6366f1;--accent-hover: #4f46e5;--input-bg: #ffffff;--input-border: #cbd5e0;--error-color: #b40909;--success-color: #4aca29;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07)}body.dark-theme{--bg-primary: #1a1a1a;--bg-secondary: #2a2a2a;--bg-tertiary: #1e1e1e;--border-color: #3a3a3a;--text-primary: #e0e0e0;--text-secondary: #b0b0b0;--text-tertiary: #888888;--accent-primary: #7c3aed;--accent-hover: #6d28d9;--input-bg: #333333;--input-border: #4a4a4a;--error-color: #df3232;--success-color: #33ff00;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4)}html,body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg-primary);color:var(--text-primary);height:100vh;overflow:hidden}@supports (-webkit-touch-callout: none){html,body{height:-webkit-fill-available}}*::selection{background:var(--accent-primary);color:var(--bg-secondary)}*::-moz-selection{background:var(--accent-primary);color:var(--bg-secondary)}