body {
    margin: 0;
    padding: 0;
    background: #ffffff;   /* FULL WHITE */
    font-family: Arial, sans-serif;
}

/* Page wrapper */
.container {
    max-width: 1000px;
    margin: 20px auto;
    padding: 20px;
}

/* Heading */
h1 {
    text-align: center;
    color: #0d47a1;     /* Blue similar to noidatut */
    margin-bottom: 20px;
}

/* Logo */
.logo {
    text-align: center;
    margin-bottom: 20px;
}

/* Code editor */
textarea {
    width: 100%;
    height: 300px;
    padding: 10px;
    font-size: 16px;
    background: #f3faff;   /* very light blue */
    border: 2px solid #90caf9;
    border-radius: 8px;
}

/* Run button */
button {
    margin-top: 15px;
    padding: 10px 20px;
    background: #1976d2;
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background: #0d47a1;
}

/* Output box */
.output {
    margin-top: 20px;
    padding: 15px;
    background: #f3faff;  /* light blue */
    border: 2px solid #90caf9;
    border-radius: 8px;
    min-height: 150px;
    white-space: pre-wrap;
}