:root{--color-primary: #1a73e8;--color-success: #4caf50;--color-danger: #d93025;--color-warning: #f9ab00;--color-bg: #f5f5f5;--color-surface: #ffffff;--color-surface-elevated: #ffffff;--color-text: #202124;--color-muted: #5f6368;--color-border: #dadce0;--color-divider: #eeeeee;--primary-color: var(--color-primary);--bg-color: var(--color-bg);--text-color: var(--color-text);--text-secondary: var(--color-muted);--card-bg: var(--color-surface);--border-color: var(--color-border);--divider-color: var(--color-divider);--success-color: var(--color-success);--danger-color: var(--color-danger);--secondary-btn-bg: #f1f3f4;--secondary-btn-text: #3c4043}[data-theme=dark]{--color-primary: #8ab4f8;--color-success: #81c995;--color-danger: #f28b82;--color-warning: #fdd663;--color-bg: #121212;--color-surface: #1e1e1e;--color-surface-elevated: #2d2d2d;--color-text: #e8eaed;--color-muted: #9aa0a6;--color-border: #3c4043;--color-divider: #3c4043;--secondary-btn-bg: #303134;--secondary-btn-text: #e8eaed}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--color-bg);color:var(--color-text);transition:background-color .3s,color .3s}*{box-sizing:border-box}h1,h2,h3{margin-top:0}