:root{--primary-color: #1976D2;--secondary-color: #90CAF9;--accent-color: #FFC107;--bg-color: #ffffff;--text-color: #212121;--card-bg: #f5f5f5;font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:var(--text-color);background-color:var(--bg-color);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body.dark-mode{--primary-color: #90CAF9;--secondary-color: #424242;--accent-color: #FF5722;--bg-color: #121212;--text-color: #ffffff;--card-bg: #1e1e1e}body.dark-mode h1,body.dark-mode h2,body.dark-mode h3{color:var(--primary-color)}body{margin:0;display:flex;flex-direction:column;min-width:320px;min-height:100vh;background-color:var(--bg-color);color:var(--text-color)}h1,h2,h3{color:var(--primary-color)}body.dark-mode h1,body.dark-mode h2,body.dark-mode h3{color:var(--accent-color)}button{border-radius:8px;border:1px solid transparent;padding:.6em 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