:root{--primary-color: #667eea;--secondary-color: #764ba2;--text-color: #2c3e50;--text-light: #666;--border-color: #e0e0e0;--bg-light: #f8f9fa}*{margin:0;padding:0;box-sizing:border-box}html,body{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;color:var(--text-color);line-height:1.6;height:100%;width:100%}body{margin:0;padding:0;background-color:#fff}app-root{display:block;min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{font-weight:700;color:var(--text-color)}p{color:var(--text-light)}a{color:var(--primary-color);text-decoration:none;transition:color .3s ease}a:hover{color:var(--secondary-color)}button{font-family:inherit;cursor:pointer}:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}