*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;background-color:#f4f4f4;color:#333;padding:20px;min-height:100vh;display:flex;justify-content:center;align-items:center}h1{font-size:2rem;color:#333;text-align:center;margin-bottom:20px}#app{max-width:800px;width:100%;margin:0 auto;padding:30px;background-color:#fff;border-radius:8px;box-shadow:0 10px 20px #0000001a;text-align:center;display:flex;flex-direction:column;align-items:center}input[type=file]{margin-bottom:20px;padding:10px;width:100%;background-color:#fafafa;border:1px solid #ccc;border-radius:4px;font-size:1rem}button{padding:12px 18px;background-color:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:1.1rem;transition:background-color .3s ease;margin-bottom:20px}button:hover{background-color:#0056b3}select{padding:8px;margin:10px 0 20px;font-size:1rem;border:1px solid #ccc;border-radius:4px;background-color:#fff;cursor:pointer}p{font-size:1rem;text-align:center;color:red;margin-top:10px}.container-image{display:flex;justify-content:center;align-items:center;margin-top:20px;width:100%}img{max-width:100%;height:auto;display:block;border:1px solid #ddd;margin:0}@media (max-width: 600px){h1{font-size:1.5rem}button{font-size:1rem;padding:10px 15px}input[type=file]{font-size:.9rem}#app{padding:15px}}