body {
    font-family: Arial;
    background: skyblue;
    padding: 20px;
}

h1 {
    text-align: center;
}

.card {
    background: white;
    padding: 20px;
    margin: 15px auto;
    width: 300px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px gray;
}

input {
    width: 100%;
    margin: 5px 0;
    padding: 8px;
}

button {
    margin: 5px 2px;
    padding: 8px;
    background: red;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 6px;
}

button:hover {
    background: darkred;
}

pre {
    background: #0b0b0b;
    color: #39ff14;
    padding: 12px;
    height: 170px;
    overflow: auto;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Layout improvements */
.card {
    border: 1px solid rgba(0, 0, 0, 0.05);
}

input {
    border-radius: 6px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    outline: none;
}

input:focus {
    border-color: darkred;
    box-shadow: 0 0 0 3px rgba(139, 0, 0, 0.15);
}