body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0d1117;
    color: #f0f6fc;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
}

h1 {
    text-shadow: 0 0 10px #00ffff;
}

.container {
    background: #161b22;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 0 20px #00ffff44;
    max-width: 600px;
    width: 100%;
}

label,
input,
button {
    display: block;
    width: 100%;
    margin-bottom: 1rem;
}

input {
    padding: 0.5rem;
    border-radius: 0.5rem;
    border: none;
    background-color: #21262d;
    color: #f0f6fc;
}

button {
    background-color: #00ffff;
    color: #000;
    padding: 0.75rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: bold;
    box-shadow: 0 0 10px #00ffff88;
    transition: 0.3s ease;
}

button:hover {
    background-color: #00cccc;
}

.output {
    margin-top: 1rem;
    padding: 1rem;
    background-color: #0d1117;
    border: 1px solid #00ffff88;
    border-radius: 0.5rem;
    white-space: pre-wrap;
    font-family: monospace;
}