:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.5;font-weight:400;color:#213547;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh}h1{font-size:2em;line-height:1.2;margin:0}button{border-radius:4px;border:none;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;cursor:pointer;transition:opacity .2s,transform .1s}button:hover:not(:disabled){opacity:.9;transform:translateY(-1px)}button:active:not(:disabled){transform:translateY(0)}button:disabled{cursor:not-allowed;opacity:.6}button:focus,button:focus-visible{outline:2px solid #4caf50;outline-offset:2px}.app-container{min-height:100vh;display:flex;flex-direction:column;background-color:#fafafa}.main-content{flex:1;padding:24px;max-width:600px;margin:0 auto;width:100%}*{box-sizing:border-box}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media(max-width:768px){.main-content{padding:1rem}h1{font-size:clamp(1.5rem,5vw,2rem)!important}}@media(min-width:768px){.app-container{max-width:600px;margin:0 auto}}@media(min-width:1024px){.app-container{max-width:800px}}button{min-height:44px;min-width:44px;touch-action:manipulation;-webkit-tap-highlight-color:transparent}input,select,textarea{font-size:16px}@media(max-width:768px){.app-container{overflow-x:hidden}}