*{box-sizing:border-box;margin:0;padding:0}body{color:#333;background-color:#f8f9fa;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.hero{color:#fff;text-align:center;background:linear-gradient(135deg,#06c 0%,#036 100%);padding:8rem 0 6rem}.logo-wrapper{margin-bottom:1.5rem}.logo{max-width:180px;height:auto}h1{margin-bottom:.75rem;font-size:3.5rem}.tagline{opacity:.9;max-width:600px;margin:0 auto;font-size:1.4rem}.main-content{text-align:center;background:#fff;padding:5rem 0}.lead{color:#555;max-width:700px;margin:1.5rem auto 3rem;font-size:1.25rem}.signup-form{justify-content:center;max-width:500px;margin:2rem auto 0;display:flex}.signup-form input{border:1px solid #ccc;border-radius:6px 0 0 6px;outline:none;flex:1;padding:1rem 1.25rem;font-size:1.1rem}.signup-form input:focus{border-color:#06c;box-shadow:0 0 0 3px #0066cc26}.signup-form button{color:#fff;cursor:pointer;background:#06c;border:none;border-radius:0 6px 6px 0;padding:0 2rem;font-size:1.1rem;font-weight:600;transition:background .2s}.signup-form button:hover{background:#0052a3}footer{color:#aaa;text-align:center;background:#222;padding:2rem 0;font-size:.95rem}@media (max-width:768px){h1{font-size:2.8rem}.hero{padding:6rem 0 4rem}.main-content{padding:3rem 0}}.feedback{text-align:center;border-radius:6px;margin-top:1.5rem;padding:1rem;font-size:1.1rem;font-weight:500}.feedback.success{color:#155724;background-color:#d4edda;border:1px solid #c3e6cb}.feedback.error{color:#721c24;background-color:#f8d7da;border:1px solid #f5c6cb}