body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #667eea, #764ba2);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
}

.container {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 350px;
    text-align: center;
}

h2 {
    margin-bottom: 20px;
    color: #333;
}

input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: 14px;
}

button {
    width: 100%;
    padding: 12px;
    background: #667eea;
    border: none;
    color: white;
    font-size: 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background: #5a67d8;
}

.result {
    margin-top: 15px;
    padding: 10px;
    background: #f1f5ff;
    border-radius: 6px;
    word-break: break-all;
}

a {
    color: #667eea;
    text-decoration: none;
}