*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;color:#333;background-color:#f5f5f5}#app{min-height:100vh;display:flex;flex-direction:column}header{background:#1a1a1a;color:#fff;padding:1rem 0}header h1{text-align:center;font-size:1.8rem}nav{display:flex;justify-content:center;gap:2rem;margin-top:1rem}nav a{color:#fff;text-decoration:none;transition:color .3s}nav a:hover{color:#3498db}main{flex:1;max-width:1200px;margin:0 auto;padding:2rem;width:100%}.hero{text-align:center;padding:3rem 0;background:#fff;border-radius:8px;margin-bottom:2rem;box-shadow:0 2px 4px #0000001a}.hero h2{font-size:2rem;margin-bottom:1rem;color:#2c3e50}footer{background:#1a1a1a;color:#fff;text-align:center;padding:1rem;margin-top:auto}@media (max-width: 768px){nav{flex-direction:column;align-items:center;gap:.5rem}main{padding:1rem}}