body{background-color:#f8f9fa;font-family:Arial,sans-serif}header{background:#0d6efd;color:#fff;padding:2rem 1rem;text-align:center}h1{font-size:2.2rem;font-weight:700}h2{font-size:1.25rem;font-weight:400;margin-top:.5rem}main{padding:2rem 1rem}.result-box{background:#fff;border-radius:.5rem;padding:1.5rem;box-shadow:0 0 10px rgba(0,0,0,.1)}.ads-placeholder{background:#e9ecef;text-align:center;border:2px dashed #adb5bd;margin:1rem 0;padding:1rem}footer{background:#212529;color:#ddd;padding:2rem 1rem;text-align:center}footer a{color:#0d6efd;text-decoration:none}